diff options
Diffstat (limited to 'quantum/painter')
| -rw-r--r-- | quantum/painter/qff.c | 137 | ||||
| -rw-r--r-- | quantum/painter/qff.h | 88 | ||||
| -rw-r--r-- | quantum/painter/qgf.c | 292 | ||||
| -rw-r--r-- | quantum/painter/qgf.h | 136 | ||||
| -rw-r--r-- | quantum/painter/qp.c | 228 | ||||
| -rw-r--r-- | quantum/painter/qp.h | 453 | ||||
| -rw-r--r-- | quantum/painter/qp_comms.c | 72 | ||||
| -rw-r--r-- | quantum/painter/qp_comms.h | 25 | ||||
| -rw-r--r-- | quantum/painter/qp_draw.h | 85 | ||||
| -rw-r--r-- | quantum/painter/qp_draw_circle.c | 172 | ||||
| -rw-r--r-- | quantum/painter/qp_draw_codec.c | 142 | ||||
| -rw-r--r-- | quantum/painter/qp_draw_core.c | 294 | ||||
| -rw-r--r-- | quantum/painter/qp_draw_ellipse.c | 116 | ||||
| -rw-r--r-- | quantum/painter/qp_draw_image.c | 382 | ||||
| -rw-r--r-- | quantum/painter/qp_draw_text.c | 444 | ||||
| -rw-r--r-- | quantum/painter/qp_internal.h | 33 | ||||
| -rw-r--r-- | quantum/painter/qp_internal_driver.h | 82 | ||||
| -rw-r--r-- | quantum/painter/qp_internal_formats.h | 49 | ||||
| -rw-r--r-- | quantum/painter/qp_stream.c | 171 | ||||
| -rw-r--r-- | quantum/painter/qp_stream.h | 82 | ||||
| -rw-r--r-- | quantum/painter/rules.mk | 116 |
21 files changed, 3599 insertions, 0 deletions
diff --git a/quantum/painter/qff.c b/quantum/painter/qff.c new file mode 100644 index 0000000000..cd6af788f9 --- /dev/null +++ b/quantum/painter/qff.c @@ -0,0 +1,137 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +// Quantum Font File "QFF" File Format. +// See https://docs.qmk.fm/#/quantum_painter_qff for more information. + +#include "qff.h" +#include "qp_draw.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// QFF API + +bool qff_read_font_descriptor(qp_stream_t *stream, uint8_t *line_height, bool *has_ascii_table, uint16_t *num_unicode_glyphs, uint8_t *bpp, bool *has_palette, painter_compression_t *compression_scheme, uint32_t *total_bytes) { + // Seek to the start + qp_stream_setpos(stream, 0); + + // Read and validate the font descriptor + qff_font_descriptor_v1_t font_descriptor; + if (qp_stream_read(&font_descriptor, sizeof(qff_font_descriptor_v1_t), 1, stream) != 1) { + qp_dprintf("Failed to read font_descriptor, expected length was not %d\n", (int)sizeof(qff_font_descriptor_v1_t)); + return false; + } + + // Make sure this block is valid + if (!qgf_validate_block_header(&font_descriptor.header, QFF_FONT_DESCRIPTOR_TYPEID, (sizeof(qff_font_descriptor_v1_t) - sizeof(qgf_block_header_v1_t)))) { + return false; + } + + // Make sure the magic and version are correct + if (font_descriptor.magic != QFF_MAGIC || font_descriptor.qff_version != 0x01) { + qp_dprintf("Failed to validate font_descriptor, expected magic 0x%06X was 0x%06X, expected version = 0x%02X was 0x%02X\n", (int)QFF_MAGIC, (int)font_descriptor.magic, (int)0x01, (int)font_descriptor.qff_version); + return false; + } + + // Make sure the file length is valid + if (font_descriptor.neg_total_file_size != ~font_descriptor.total_file_size) { + qp_dprintf("Failed to validate font_descriptor, expected negated length 0x%08X was 0x%08X\n", (int)(~font_descriptor.total_file_size), (int)font_descriptor.neg_total_file_size); + return false; + } + + // Copy out the required info + if (line_height) { + *line_height = font_descriptor.line_height; + } + if (has_ascii_table) { + *has_ascii_table = font_descriptor.has_ascii_table; + } + if (num_unicode_glyphs) { + *num_unicode_glyphs = font_descriptor.num_unicode_glyphs; + } + if (bpp || has_palette) { + if (!qgf_parse_format(font_descriptor.format, bpp, has_palette)) { + return false; + } + } + if (compression_scheme) { + *compression_scheme = font_descriptor.compression_scheme; + } + if (total_bytes) { + *total_bytes = font_descriptor.total_file_size; + } + + return true; +} + +static bool qff_validate_ascii_descriptor(qp_stream_t *stream) { + // Read the raw descriptor + qff_ascii_glyph_table_v1_t ascii_descriptor; + if (qp_stream_read(&ascii_descriptor, sizeof(qff_ascii_glyph_table_v1_t), 1, stream) != 1) { + qp_dprintf("Failed to read ascii_descriptor, expected length was not %d\n", (int)sizeof(qff_ascii_glyph_table_v1_t)); + return false; + } + + // Make sure this block is valid + if (!qgf_validate_block_header(&ascii_descriptor.header, QFF_ASCII_GLYPH_DESCRIPTOR_TYPEID, (sizeof(qff_ascii_glyph_table_v1_t) - sizeof(qgf_block_header_v1_t)))) { + return false; + } + + return true; +} + +static bool qff_validate_unicode_descriptor(qp_stream_t *stream, uint16_t num_unicode_glyphs) { + // Read the raw descriptor + qff_unicode_glyph_table_v1_t unicode_descriptor; + if (qp_stream_read(&unicode_descriptor, sizeof(qff_unicode_glyph_table_v1_t), 1, stream) != 1) { + qp_dprintf("Failed to read unicode_descriptor, expected length was not %d\n", (int)sizeof(qff_unicode_glyph_table_v1_t)); + return false; + } + + // Make sure this block is valid + if (!qgf_validate_block_header(&unicode_descriptor.header, QFF_UNICODE_GLYPH_DESCRIPTOR_TYPEID, num_unicode_glyphs * 6)) { + return false; + } + + // Skip the necessary amount of data to get to the next block + qp_stream_seek(stream, num_unicode_glyphs * sizeof(qff_unicode_glyph_v1_t), SEEK_CUR); + + return true; +} + +bool qff_validate_stream(qp_stream_t *stream) { + bool has_ascii_table; + uint16_t num_unicode_glyphs; + + if (!qff_read_font_descriptor(stream, NULL, &has_ascii_table, &num_unicode_glyphs, NULL, NULL, NULL, NULL)) { + return false; + } + + if (has_ascii_table) { + if (!qff_validate_ascii_descriptor(stream)) { + return false; + } + } + + if (num_unicode_glyphs > 0) { + if (!qff_validate_unicode_descriptor(stream, num_unicode_glyphs)) { + return false; + } + } + + return true; +} + +uint32_t qff_get_total_size(qp_stream_t *stream) { + // Get the original location + uint32_t oldpos = qp_stream_tell(stream); + + // Read the font descriptor, grabbing the size + uint32_t total_size; + if (!qff_read_font_descriptor(stream, NULL, NULL, NULL, NULL, NULL, NULL, &total_size)) { + return false; + } + + // Restore the original location + qp_stream_setpos(stream, oldpos); + return total_size; +} diff --git a/quantum/painter/qff.h b/quantum/painter/qff.h new file mode 100644 index 0000000000..6f1a1fd815 --- /dev/null +++ b/quantum/painter/qff.h @@ -0,0 +1,88 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#pragma once + +// Quantum Font File "QFF" File Format. +// See https://docs.qmk.fm/#/quantum_painter_qff for more information. + +#include <stdint.h> +#include <stdbool.h> + +#include "qp_stream.h" +#include "qp_internal.h" +#include "qgf.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// QFF structures + +///////////////////////////////////////// +// Font descriptor + +#define QFF_FONT_DESCRIPTOR_TYPEID 0x00 + +typedef struct __attribute__((packed)) qff_font_descriptor_v1_t { + qgf_block_header_v1_t header; // = { .type_id = 0x00, .neg_type_id = (~0x00), .length = 20 } + uint32_t magic : 24; // constant, equal to 0x464651 ("QFF") + uint8_t qff_version; // constant, equal to 0x01 + uint32_t total_file_size; // total size of the entire file, starting at offset zero + uint32_t neg_total_file_size; // negated value of total_file_size, used for detecting parsing errors + uint8_t line_height; // glyph height in pixels + bool has_ascii_table; // whether the font has an ascii table of glyphs (0x20...0x7E) + uint16_t num_unicode_glyphs; // the number of glyphs in the unicode table -- no table specified if zero + qp_image_format_t format : 8; // Frame format, see qp.h. + uint8_t flags; // frame flags, see below. + uint8_t compression_scheme; // compression scheme, see below. + uint8_t transparency_index; // palette index used for transparent pixels (not yet implemented) +} qff_font_descriptor_v1_t; + +_Static_assert(sizeof(qff_font_descriptor_v1_t) == (sizeof(qgf_block_header_v1_t) + 20), "qff_font_descriptor_v1_t must be 25 bytes in v1 of QFF"); + +#define QFF_MAGIC 0x464651 + +///////////////////////////////////////// +// ASCII glyph table descriptor + +#define QFF_ASCII_GLYPH_DESCRIPTOR_TYPEID 0x01 + +#define QFF_GLYPH_WIDTH_BITS 6 +#define QFF_GLYPH_WIDTH_MASK ((1 << QFF_GLYPH_WIDTH_BITS) - 1) +#define QFF_GLYPH_OFFSET_BITS 18 +#define QFF_GLYPH_OFFSET_MASK (((1 << QFF_GLYPH_OFFSET_BITS) - 1) << QFF_GLYPH_WIDTH_BITS) + +typedef struct __attribute__((packed)) qff_ascii_glyph_v1_t { + uint32_t value : 24; // Uses QFF_GLYPH_*_(BITS|MASK) as bitfield ordering is compiler-defined +} qff_ascii_glyph_v1_t; + +_Static_assert(sizeof(qff_ascii_glyph_v1_t) == 3, "qff_ascii_glyph_v1_t must be 3 bytes in v1 of QFF"); + +typedef struct __attribute__((packed)) qff_ascii_glyph_table_v1_t { + qgf_block_header_v1_t header; // = { .type_id = 0x01, .neg_type_id = (~0x01), .length = 285 } + qff_ascii_glyph_v1_t glyph[95]; // 95 glyphs, 0x20..0x7E +} qff_ascii_glyph_table_v1_t; + +_Static_assert(sizeof(qff_ascii_glyph_table_v1_t) == (sizeof(qgf_block_header_v1_t) + (95 * sizeof(qff_ascii_glyph_v1_t))), "qff_ascii_glyph_table_v1_t must be 290 bytes in v1 of QFF"); + +///////////////////////////////////////// +// Unicode glyph table descriptor + +#define QFF_UNICODE_GLYPH_DESCRIPTOR_TYPEID 0x02 + +typedef struct __attribute__((packed)) qff_unicode_glyph_v1_t { + uint32_t code_point : 24; + uint32_t value : 24; // Uses QFF_GLYPH_*_(BITS|MASK) as bitfield ordering is compiler-defined +} qff_unicode_glyph_v1_t; + +_Static_assert(sizeof(qff_unicode_glyph_v1_t) == 6, "qff_unicode_glyph_v1_t must be 6 bytes in v1 of QFF"); + +typedef struct __attribute__((packed)) qff_unicode_glyph_table_v1_t { + qgf_block_header_v1_t header; // = { .type_id = 0x02, .neg_type_id = (~0x02), .length = (N * 6) } + qff_unicode_glyph_v1_t glyph[0]; // Extent of '0' signifies that this struct is immediately followed by the glyph data +} qff_unicode_glyph_table_v1_t; + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// QFF API + +bool qff_validate_stream(qp_stream_t *stream); +uint32_t qff_get_total_size(qp_stream_t *stream); +bool qff_read_font_descriptor(qp_stream_t *stream, uint8_t *line_height, bool *has_ascii_table, uint16_t *num_unicode_glyphs, uint8_t *bpp, bool *has_palette, painter_compression_t *compression_scheme, uint32_t *total_bytes); diff --git a/quantum/painter/qgf.c b/quantum/painter/qgf.c new file mode 100644 index 0000000000..834837105b --- /dev/null +++ b/quantum/painter/qgf.c @@ -0,0 +1,292 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +// Quantum Graphics File "QGF" File Format. +// See https://docs.qmk.fm/#/quantum_painter_qgf for more information. + +#include "qgf.h" +#include "qp_draw.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// QGF API + +bool qgf_validate_block_header(qgf_block_header_v1_t *desc, uint8_t expected_typeid, int32_t expected_length) { + if (desc->type_id != expected_typeid || desc->neg_type_id != ((~expected_typeid) & 0xFF)) { + qp_dprintf("Failed to validate header, expected typeid 0x%02X, was 0x%02X, expected negated typeid 0x%02X, was 0x%02X\n", (int)expected_typeid, (int)desc->type_id, (int)((~desc->type_id) & 0xFF), (int)desc->neg_type_id); + return false; + } + + if (expected_length >= 0 && desc->length != expected_length) { + qp_dprintf("Failed to validate header (typeid 0x%02X), expected length %d, was %d\n", (int)desc->type_id, (int)expected_length, (int)desc->length); + return false; + } + + return true; +} + +bool qgf_parse_format(qp_image_format_t format, uint8_t *bpp, bool *has_palette) { + // clang-format off + static const struct QP_PACKED { + uint8_t bpp; + bool has_palette; + } formats[] = { + [GRAYSCALE_1BPP] = {.bpp = 1, .has_palette = false}, + [GRAYSCALE_2BPP] = {.bpp = 2, .has_palette = false}, + [GRAYSCALE_4BPP] = {.bpp = 4, .has_palette = false}, + [GRAYSCALE_8BPP] = {.bpp = 8, .has_palette = false}, + [PALETTE_1BPP] = {.bpp = 1, .has_palette = true}, + [PALETTE_2BPP] = {.bpp = 2, .has_palette = true}, + [PALETTE_4BPP] = {.bpp = 4, .has_palette = true}, + [PALETTE_8BPP] = {.bpp = 8, .has_palette = true}, + }; + // clang-format on + + // Copy out the required info + if (format > PALETTE_8BPP) { + qp_dprintf("Failed to parse frame_descriptor, invalid format 0x%02X\n", (int)format); + return false; + } + + // Copy out the required info + if (bpp) { + *bpp = formats[format].bpp; + } + if (has_palette) { + *has_palette = formats[format].has_palette; + } + + return true; +} + +bool qgf_parse_frame_descriptor(qgf_frame_v1_t *frame_descriptor, uint8_t *bpp, bool *has_palette, bool *is_delta, painter_compression_t *compression_scheme, uint16_t *delay) { + // Decode the format + qgf_parse_format(frame_descriptor->format, bpp, has_palette); + + // Copy out the required info + if (is_delta) { + *is_delta = (frame_descriptor->flags & QGF_FRAME_FLAG_DELTA) == QGF_FRAME_FLAG_DELTA; + } + if (compression_scheme) { + *compression_scheme = frame_descriptor->compression_scheme; + } + if (delay) { + *delay = frame_descriptor->delay; + } + + return true; +} + +bool qgf_read_graphics_descriptor(qp_stream_t *stream, uint16_t *image_width, uint16_t *image_height, uint16_t *frame_count, uint32_t *total_bytes) { + // Seek to the start + qp_stream_setpos(stream, 0); + + // Read and validate the graphics descriptor + qgf_graphics_descriptor_v1_t graphics_descriptor; + if (qp_stream_read(&graphics_descriptor, sizeof(qgf_graphics_descriptor_v1_t), 1, stream) != 1) { + qp_dprintf("Failed to read graphics_descriptor, expected length was not %d\n", (int)sizeof(qgf_graphics_descriptor_v1_t)); + return false; + } + + // Make sure this block is valid + if (!qgf_validate_block_header(&graphics_descriptor.header, QGF_GRAPHICS_DESCRIPTOR_TYPEID, (sizeof(qgf_graphics_descriptor_v1_t) - sizeof(qgf_block_header_v1_t)))) { + return false; + } + + // Make sure the magic and version are correct + if (graphics_descriptor.magic != QGF_MAGIC || graphics_descriptor.qgf_version != 0x01) { + qp_dprintf("Failed to validate graphics_descriptor, expected magic 0x%06X was 0x%06X, expected version = 0x%02X was 0x%02X\n", (int)QGF_MAGIC, (int)graphics_descriptor.magic, (int)0x01, (int)graphics_descriptor.qgf_version); + return false; + } + + // Make sure the file length is valid + if (graphics_descriptor.neg_total_file_size != ~graphics_descriptor.total_file_size) { + qp_dprintf("Failed to validate graphics_descriptor, expected negated length 0x%08X was 0x%08X\n", (int)(~graphics_descriptor.total_file_size), (int)graphics_descriptor.neg_total_file_size); + return false; + } + + // Copy out the required info + if (image_width) { + *image_width = graphics_descriptor.image_width; + } + if (image_height) { + *image_height = graphics_descriptor.image_height; + } + if (frame_count) { + *frame_count = graphics_descriptor.frame_count; + } + if (total_bytes) { + *total_bytes = graphics_descriptor.total_file_size; + } + + return true; +} + +static bool qgf_read_frame_offset(qp_stream_t *stream, uint16_t frame_number, uint32_t *frame_offset) { + uint16_t frame_count; + if (!qgf_read_graphics_descriptor(stream, NULL, NULL, &frame_count, NULL)) { + return false; + } + + // Read the frame offsets descriptor + qgf_frame_offsets_v1_t frame_offsets; + if (qp_stream_read(&frame_offsets, sizeof(qgf_frame_offsets_v1_t), 1, stream) != 1) { + qp_dprintf("Failed to read frame_offsets, expected length was not %d\n", (int)sizeof(qgf_frame_offsets_v1_t)); + return false; + } + + // Make sure this block is valid + if (!qgf_validate_block_header(&frame_offsets.header, QGF_FRAME_OFFSET_DESCRIPTOR_TYPEID, (frame_count * sizeof(uint32_t)))) { + return false; + } + + if (frame_number >= frame_count) { + qp_dprintf("Invalid frame number, was %d but only %d frames in image\n", (int)frame_number, (int)frame_count); + return false; + } + + // Skip the necessary amount of data to get to the requested frame offset + qp_stream_seek(stream, frame_number * sizeof(uint32_t), SEEK_CUR); + + // Read the frame offset + uint32_t offset = 0; + if (qp_stream_read(&offset, sizeof(uint32_t), 1, stream) != 1) { + qp_dprintf("Failed to read frame offset, expected length was not %d\n", (int)sizeof(uint32_t)); + return false; + } + + // Copy out the required info + if (frame_offset) { + *frame_offset = offset; + } + + return true; +} + +void qgf_seek_to_frame_descriptor(qp_stream_t *stream, uint16_t frame_number) { + // Read the offset + uint32_t offset = 0; + qgf_read_frame_offset(stream, frame_number, &offset); + + // Move to the offset + qp_stream_setpos(stream, offset); +} + +bool qgf_validate_frame_descriptor(qp_stream_t *stream, uint16_t frame_number, uint8_t *bpp, bool *has_palette, bool *is_delta) { + // Seek to the correct location + qgf_seek_to_frame_descriptor(stream, frame_number); + + // Read the raw descriptor + qgf_frame_v1_t frame_descriptor; + if (qp_stream_read(&frame_descriptor, sizeof(qgf_frame_v1_t), 1, stream) != 1) { + qp_dprintf("Failed to read frame_descriptor, expected length was not %d\n", (int)sizeof(qgf_frame_v1_t)); + return false; + } + + // Make sure this block is valid + if (!qgf_validate_block_header(&frame_descriptor.header, QGF_FRAME_DESCRIPTOR_TYPEID, (sizeof(qgf_frame_v1_t) - sizeof(qgf_block_header_v1_t)))) { + return false; + } + + return qgf_parse_frame_descriptor(&frame_descriptor, bpp, has_palette, is_delta, NULL, NULL); +} + +bool qgf_validate_palette_descriptor(qp_stream_t *stream, uint16_t frame_number, uint8_t bpp) { + // Read the palette descriptor + qgf_palette_v1_t palette_descriptor; + if (qp_stream_read(&palette_descriptor, sizeof(qgf_palette_v1_t), 1, stream) != 1) { + qp_dprintf("Failed to read palette_descriptor, expected length was not %d\n", (int)sizeof(qgf_palette_v1_t)); + return false; + } + + // Make sure this block is valid + uint32_t expected_length = (1 << bpp) * 3 * sizeof(uint8_t); + if (!qgf_validate_block_header(&palette_descriptor.header, QGF_FRAME_PALETTE_DESCRIPTOR_TYPEID, expected_length)) { + return false; + } + + // Move forward in the stream to the next block + qp_stream_seek(stream, expected_length, SEEK_CUR); + return true; +} + +bool qgf_validate_delta_descriptor(qp_stream_t *stream, uint16_t frame_number) { + // Read the delta descriptor + qgf_delta_v1_t delta_descriptor; + if (qp_stream_read(&delta_descriptor, sizeof(qgf_delta_v1_t), 1, stream) != 1) { + qp_dprintf("Failed to read delta_descriptor, expected length was not %d\n", (int)sizeof(qgf_delta_v1_t)); + return false; + } + + // Make sure this block is valid + if (!qgf_validate_block_header(&delta_descriptor.header, QGF_FRAME_DELTA_DESCRIPTOR_TYPEID, (sizeof(qgf_delta_v1_t) - sizeof(qgf_block_header_v1_t)))) { + return false; + } + + return true; +} + +bool qgf_validate_frame_data_descriptor(qp_stream_t *stream, uint16_t frame_number) { + // Read and validate the data block + qgf_data_v1_t data_descriptor; + if (qp_stream_read(&data_descriptor, sizeof(qgf_data_v1_t), 1, stream) != 1) { + qp_dprintf("Failed to read data_descriptor, expected length was not %d\n", (int)sizeof(qgf_data_v1_t)); + return false; + } + + if (!qgf_validate_block_header(&data_descriptor.header, QGF_FRAME_DATA_DESCRIPTOR_TYPEID, -1)) { + return false; + } + + return true; +} + +bool qgf_validate_stream(qp_stream_t *stream) { + uint16_t frame_count; + if (!qgf_read_graphics_descriptor(stream, NULL, NULL, &frame_count, NULL)) { + return false; + } + + // Read and validate all the frames (automatically validates the frame offset descriptor in the process) + for (uint16_t i = 0; i < frame_count; ++i) { + // Validate the frame descriptor block + uint8_t bpp; + bool has_palette; + bool has_delta; + if (!qgf_validate_frame_descriptor(stream, i, &bpp, &has_palette, &has_delta)) { + return false; + } + + // If we've got a palette block, check it + if (has_palette && !qgf_validate_palette_descriptor(stream, i, bpp)) { + return false; + } + + // If we've got a delta block, check it + if (has_delta && !qgf_validate_delta_descriptor(stream, i)) { + return false; + } + + // Check the data block + if (!qgf_validate_frame_data_descriptor(stream, i)) { + return false; + } + } + + return true; +} + +// Work out the total size of an image definition, assuming we can read far enough into the file +uint32_t qgf_get_total_size(qp_stream_t *stream) { + // Get the original location + uint32_t oldpos = qp_stream_tell(stream); + + // Read the graphics descriptor, grabbing the size + uint32_t total_size; + if (!qgf_read_graphics_descriptor(stream, NULL, NULL, NULL, &total_size)) { + return false; + } + + // Restore the original location + qp_stream_setpos(stream, oldpos); + return total_size; +} diff --git a/quantum/painter/qgf.h b/quantum/painter/qgf.h new file mode 100644 index 0000000000..54585edd04 --- /dev/null +++ b/quantum/painter/qgf.h @@ -0,0 +1,136 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#pragma once + +// Quantum Graphics File "QGF" File Format. +// See https://docs.qmk.fm/#/quantum_painter_qgf for more information. + +#include <stdint.h> +#include <stdbool.h> + +#include "qp_stream.h" +#include "qp_internal.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// QGF structures + +///////////////////////////////////////// +// Common block header + +typedef struct QP_PACKED qgf_block_header_v1_t { + uint8_t type_id; // See each respective block type below. + uint8_t neg_type_id; // Negated type ID, used for detecting parsing errors. + uint32_t length : 24; // 24-bit blob length, allowing for block sizes of a maximum of 16MB. +} qgf_block_header_v1_t; + +_Static_assert(sizeof(qgf_block_header_v1_t) == 5, "qgf_block_header_v1_t must be 5 bytes in v1 of QGF"); + +///////////////////////////////////////// +// Graphics descriptor + +#define QGF_GRAPHICS_DESCRIPTOR_TYPEID 0x00 + +typedef struct QP_PACKED qgf_graphics_descriptor_v1_t { + qgf_block_header_v1_t header; // = { .type_id = 0x00, .neg_type_id = (~0x00), .length = 18 } + uint32_t magic : 24; // constant, equal to 0x464751 ("QGF") + uint8_t qgf_version; // constant, equal to 0x01 + uint32_t total_file_size; // total size of the entire file, starting at offset zero + uint32_t neg_total_file_size; // negated value of total_file_size + uint16_t image_width; // in pixels + uint16_t image_height; // in pixels + uint16_t frame_count; // minimum of 1 +} qgf_graphics_descriptor_v1_t; + +_Static_assert(sizeof(qgf_graphics_descriptor_v1_t) == (sizeof(qgf_block_header_v1_t) + 18), "qgf_graphics_descriptor_v1_t must be 23 bytes in v1 of QGF"); + +#define QGF_MAGIC 0x464751 + +///////////////////////////////////////// +// Frame offset descriptor + +#define QGF_FRAME_OFFSET_DESCRIPTOR_TYPEID 0x01 + +typedef struct QP_PACKED qgf_frame_offsets_v1_t { + qgf_block_header_v1_t header; // = { .type_id = 0x01, .neg_type_id = (~0x01), .length = (N * sizeof(uint32_t)) } + uint32_t offset[0]; // '0' signifies that this struct is immediately followed by the frame offsets +} qgf_frame_offsets_v1_t; + +_Static_assert(sizeof(qgf_frame_offsets_v1_t) == sizeof(qgf_block_header_v1_t), "qgf_frame_offsets_v1_t must only contain qgf_block_header_v1_t in v1 of QGF"); + +///////////////////////////////////////// +// Frame descriptor + +#define QGF_FRAME_DESCRIPTOR_TYPEID 0x02 + +typedef struct QP_PACKED qgf_frame_v1_t { + qgf_block_header_v1_t header; // = { .type_id = 0x02, .neg_type_id = (~0x02), .length = 6 } + qp_image_format_t format : 8; // Frame format, see qp.h. + uint8_t flags; // Frame flags, see below. + painter_compression_t compression_scheme : 8; // Compression scheme, see qp.h. + uint8_t transparency_index; // palette index used for transparent pixels (not yet implemented) + uint16_t delay; // frame delay time for animations (in units of milliseconds) +} qgf_frame_v1_t; + +_Static_assert(sizeof(qgf_frame_v1_t) == (sizeof(qgf_block_header_v1_t) + 6), "qgf_frame_v1_t must be 11 bytes in v1 of QGF"); + +#define QGF_FRAME_FLAG_DELTA 0x02 +#define QGF_FRAME_FLAG_TRANSPARENT 0x01 + +///////////////////////////////////////// +// Frame palette descriptor + +#define QGF_FRAME_PALETTE_DESCRIPTOR_TYPEID 0x03 + +typedef struct QP_PACKED qgf_palette_entry_v1_t { + uint8_t h; // hue component: `[0,360)` degrees is mapped to `[0,255]` uint8_t. + uint8_t s; // saturation component: `[0,1]` is mapped to `[0,255]` uint8_t. + uint8_t v; // value component: `[0,1]` is mapped to `[0,255]` uint8_t. +} qgf_palette_entry_v1_t; + +_Static_assert(sizeof(qgf_palette_entry_v1_t) == 3, "Palette entry is not 3 bytes in size"); + +typedef struct QP_PACKED qgf_palette_v1_t { + qgf_block_header_v1_t header; // = { .type_id = 0x03, .neg_type_id = (~0x03), .length = (N * 3 * sizeof(uint8_t)) } + qgf_palette_entry_v1_t hsv[0]; // N * hsv, where N is the number of palette entries depending on the frame format in the descriptor +} qgf_palette_v1_t; + +_Static_assert(sizeof(qgf_palette_v1_t) == sizeof(qgf_block_header_v1_t), "qgf_palette_v1_t must only contain qgf_block_header_v1_t in v1 of QGF"); + +///////////////////////////////////////// +// Frame delta descriptor + +#define QGF_FRAME_DELTA_DESCRIPTOR_TYPEID 0x04 + +typedef struct QP_PACKED qgf_delta_v1_t { + qgf_block_header_v1_t header; // = { .type_id = 0x04, .neg_type_id = (~0x04), .length = 8 } + uint16_t left; // The left pixel location to draw the delta image + uint16_t top; // The top pixel location to draw the delta image + uint16_t right; // The right pixel location to to draw the delta image + uint16_t bottom; // The bottom pixel location to to draw the delta image +} qgf_delta_v1_t; + +_Static_assert(sizeof(qgf_delta_v1_t) == (sizeof(qgf_block_header_v1_t) + 8), "qgf_delta_v1_t must be 13 bytes in v1 of QGF"); + +///////////////////////////////////////// +// Frame data descriptor + +#define QGF_FRAME_DATA_DESCRIPTOR_TYPEID 0x05 + +typedef struct QP_PACKED qgf_data_v1_t { + qgf_block_header_v1_t header; // = { .type_id = 0x05, .neg_type_id = (~0x05), .length = N } + uint8_t data[0]; // 0 signifies that this struct is immediately followed by the length of data specified in the header +} qgf_data_v1_t; + +_Static_assert(sizeof(qgf_data_v1_t) == sizeof(qgf_block_header_v1_t), "qgf_data_v1_t must only contain qgf_block_header_v1_t in v1 of QGF"); + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// QGF API + +uint32_t qgf_get_total_size(qp_stream_t *stream); +bool qgf_validate_stream(qp_stream_t *stream); +bool qgf_validate_block_header(qgf_block_header_v1_t *desc, uint8_t expected_typeid, int32_t expected_length); +bool qgf_read_graphics_descriptor(qp_stream_t *stream, uint16_t *image_width, uint16_t *image_height, uint16_t *frame_count, uint32_t *total_bytes); +bool qgf_parse_format(qp_image_format_t format, uint8_t *bpp, bool *has_palette); +void qgf_seek_to_frame_descriptor(qp_stream_t *stream, uint16_t frame_number); +bool qgf_parse_frame_descriptor(qgf_frame_v1_t *frame_descriptor, uint8_t *bpp, bool *has_palette, bool *is_delta, painter_compression_t *compression_scheme, uint16_t *delay); diff --git a/quantum/painter/qp.c b/quantum/painter/qp.c new file mode 100644 index 0000000000..e292ff6497 --- /dev/null +++ b/quantum/painter/qp.c @@ -0,0 +1,228 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#include <quantum.h> +#include <utf8.h> + +#include "qp_internal.h" +#include "qp_comms.h" +#include "qp_draw.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Internal driver validation + +static bool validate_driver_vtable(struct painter_driver_t *driver) { + return (driver->driver_vtable && driver->driver_vtable->init && driver->driver_vtable->power && driver->driver_vtable->clear && driver->driver_vtable->viewport && driver->driver_vtable->pixdata && driver->driver_vtable->palette_convert && driver->driver_vtable->append_pixels) ? true : false; +} + +static bool validate_comms_vtable(struct painter_driver_t *driver) { + return (driver->comms_vtable && driver->comms_vtable->comms_init && driver->comms_vtable->comms_start && driver->comms_vtable->comms_stop && driver->comms_vtable->comms_send) ? true : false; +} + +static bool validate_driver_integrity(struct painter_driver_t *driver) { + return validate_driver_vtable(driver) && validate_comms_vtable(driver); +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_init + +bool qp_init(painter_device_t device, painter_rotation_t rotation) { + qp_dprintf("qp_init: entry\n"); + struct painter_driver_t *driver = (struct painter_driver_t *)device; + + driver->validate_ok = false; + if (!validate_driver_integrity(driver)) { + qp_dprintf("Failed to validate driver integrity in qp_init\n"); + return false; + } + + driver->validate_ok = true; + + if (!qp_comms_init(device)) { + driver->validate_ok = false; + qp_dprintf("qp_init: fail (could not init comms)\n"); + return false; + } + + if (!qp_comms_start(device)) { + qp_dprintf("qp_init: fail (could not start comms)\n"); + return false; + } + + // Set the rotation before init + driver->rotation = rotation; + + // Invoke init + bool ret = driver->driver_vtable->init(device, rotation); + qp_comms_stop(device); + qp_dprintf("qp_init: %s\n", ret ? "ok" : "fail"); + return ret; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_power + +bool qp_power(painter_device_t device, bool power_on) { + qp_dprintf("qp_power: entry\n"); + struct painter_driver_t *driver = (struct painter_driver_t *)device; + if (!driver->validate_ok) { + qp_dprintf("qp_power: fail (validation_ok == false)\n"); + return false; + } + + if (!qp_comms_start(device)) { + qp_dprintf("qp_power: fail (could not start comms)\n"); + return false; + } + + bool ret = driver->driver_vtable->power(device, power_on); + qp_comms_stop(device); + qp_dprintf("qp_power: %s\n", ret ? "ok" : "fail"); + return ret; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_clear + +bool qp_clear(painter_device_t device) { + qp_dprintf("qp_clear: entry\n"); + struct painter_driver_t *driver = (struct painter_driver_t *)device; + if (!driver->validate_ok) { + qp_dprintf("qp_clear: fail (validation_ok == false)\n"); + return false; + } + + if (!qp_comms_start(device)) { + qp_dprintf("qp_clear: fail (could not start comms)\n"); + return false; + } + + bool ret = driver->driver_vtable->clear(device); + qp_comms_stop(device); + qp_dprintf("qp_clear: %s\n", ret ? "ok" : "fail"); + return ret; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_flush + +bool qp_flush(painter_device_t device) { + qp_dprintf("qp_flush: entry\n"); + struct painter_driver_t *driver = (struct painter_driver_t *)device; + if (!driver->validate_ok) { + qp_dprintf("qp_flush: fail (validation_ok == false)\n"); + return false; + } + + if (!qp_comms_start(device)) { + qp_dprintf("qp_flush: fail (could not start comms)\n"); + return false; + } + + bool ret = driver->driver_vtable->flush(device); + qp_comms_stop(device); + qp_dprintf("qp_flush: %s\n", ret ? "ok" : "fail"); + return ret; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_get_geometry + +void qp_get_geometry(painter_device_t device, uint16_t *width, uint16_t *height, painter_rotation_t *rotation, uint16_t *offset_x, uint16_t *offset_y) { + qp_dprintf("qp_geometry: entry\n"); + struct painter_driver_t *driver = (struct painter_driver_t *)device; + + switch (driver->rotation) { + default: + case QP_ROTATION_0: + case QP_ROTATION_180: + if (width) { + *width = driver->panel_width; + } + if (height) { + *height = driver->panel_height; + } + break; + case QP_ROTATION_90: + case QP_ROTATION_270: + if (width) { + *width = driver->panel_height; + } + if (height) { + *height = driver->panel_width; + } + break; + } + + if (rotation) { + *rotation = driver->rotation; + } + + if (offset_x) { + *offset_x = driver->offset_x; + } + + if (offset_y) { + *offset_y = driver->offset_y; + } + + qp_dprintf("qp_geometry: ok\n"); +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_set_viewport_offsets + +void qp_set_viewport_offsets(painter_device_t device, uint16_t offset_x, uint16_t offset_y) { + qp_dprintf("qp_set_viewport_offsets: entry\n"); + struct painter_driver_t *driver = (struct painter_driver_t *)device; + + driver->offset_x = offset_x; + driver->offset_y = offset_y; + + qp_dprintf("qp_set_viewport_offsets: ok\n"); +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_viewport + +bool qp_viewport(painter_device_t device, uint16_t left, uint16_t top, uint16_t right, uint16_t bottom) { + qp_dprintf("qp_viewport: entry\n"); + struct painter_driver_t *driver = (struct painter_driver_t *)device; + if (!driver->validate_ok) { + qp_dprintf("qp_viewport: fail (validation_ok == false)\n"); + return false; + } + + if (!qp_comms_start(device)) { + qp_dprintf("qp_viewport: fail (could not start comms)\n"); + return false; + } + + // Set the viewport + bool ret = driver->driver_vtable->viewport(device, left, top, right, bottom); + qp_dprintf("qp_viewport: %s\n", ret ? "ok" : "fail"); + qp_comms_stop(device); + return ret; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_pixdata + +bool qp_pixdata(painter_device_t device, const void *pixel_data, uint32_t native_pixel_count) { + qp_dprintf("qp_pixdata: entry\n"); + struct painter_driver_t *driver = (struct painter_driver_t *)device; + if (!driver->validate_ok) { + qp_dprintf("qp_pixdata: fail (validation_ok == false)\n"); + return false; + } + + if (!qp_comms_start(device)) { + qp_dprintf("qp_pixdata: fail (could not start comms)\n"); + return false; + } + + bool ret = driver->driver_vtable->pixdata(device, pixel_data, native_pixel_count); + qp_dprintf("qp_pixdata: %s\n", ret ? "ok" : "fail"); + qp_comms_stop(device); + return ret; +} diff --git a/quantum/painter/qp.h b/quantum/painter/qp.h new file mode 100644 index 0000000000..e1c14d156c --- /dev/null +++ b/quantum/painter/qp.h @@ -0,0 +1,453 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#pragma once + +#include <stdint.h> +#include <stdbool.h> + +#include "deferred_exec.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter global configurables (add to your keyboard's config.h) + +#ifndef QUANTUM_PAINTER_NUM_IMAGES +/** + * @def This controls the maximum number of images that Quantum Painter can load at any one time. Images can be loaded + * using \ref qp_load_image_mem, and can be unloaded by calling \ref qp_close_image. Increasing this number in + * order to load more images increases the amount of RAM required. Image data is not held in RAM, just metadata. + */ +# define QUANTUM_PAINTER_NUM_IMAGES 8 +#endif // QUANTUM_PAINTER_NUM_IMAGES + +#ifndef QUANTUM_PAINTER_NUM_FONTS +/** + * @def This controls the maximum number of fonts that Quantum Painter can load. Fonts can be loaded using + * \ref qp_load_font_mem, and can be unloaded by calling \ref qp_close_font. Increasing this number in order to + * load more fonts increases the amount of RAM required. Font data is not held in RAM, unless + * \ref QUANTUM_PAINTER_LOAD_FONTS_TO_RAM is set to TRUE. + */ +# define QUANTUM_PAINTER_NUM_FONTS 4 +#endif // QUANTUM_PAINTER_NUM_FONTS + +#ifndef QUANTUM_PAINTER_LOAD_FONTS_TO_RAM +/** + * @def This controls whether or not fonts should be cached in RAM. Under normal circumstances, fonts can have quite + * random access patterns, and due to timing of flash memory or external storage, it may be a significant speedup + * moving the font into RAM before use. Defaults to "off", but if it's enabled it will fallback to reading from the + * original location if corresponding RAM could not be allocated (such as being too large). + */ +# define QUANTUM_PAINTER_LOAD_FONTS_TO_RAM FALSE +#endif + +#ifndef QUANTUM_PAINTER_CONCURRENT_ANIMATIONS +/** + * @def This controls the maximum number of animations that Quantum Painter can play simultaneously. Increasing this + * number in order to play more animations at the same time increases the amount of RAM required. + */ +# define QUANTUM_PAINTER_CONCURRENT_ANIMATIONS 4 +#endif // QUANTUM_PAINTER_CONCURRENT_ANIMATIONS + +#ifndef QUANTUM_PAINTER_PIXDATA_BUFFER_SIZE +/** + * @def This controls the maximum size of the pixel data buffer used for single blocks of transmission. Larger buffers + * means more data is processed at one time, with less frequent transmissions, at the cost of RAM. + */ +# define QUANTUM_PAINTER_PIXDATA_BUFFER_SIZE 32 +#endif + +#ifndef QUANTUM_PAINTER_SUPPORTS_256_PALETTE +/** + * @def This controls whether 256-color palettes are supported. This has relatively hefty requirements on RAM -- at + * least 1kB extra is required just to store the palette information, with more required for other metadata. + */ +# define QUANTUM_PAINTER_SUPPORTS_256_PALETTE FALSE +#endif + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter types + +/** + * @typedef A handle to a Quantum Painter device, such as an LCD or OLED. Most Quantum Painter APIs require this + * argument in order to perform operations on the display. + */ +typedef const void *painter_device_t; + +/** + * @typedef The desired rotation of a panel. Used as a parameter to \ref qp_init, and can be queried by + * \ref qp_get_geometry. + */ +typedef enum { QP_ROTATION_0, QP_ROTATION_90, QP_ROTATION_180, QP_ROTATION_270 } painter_rotation_t; + +/** + * @typedef A descriptor for a Quantum Painter image. + */ +typedef struct painter_image_desc_t { + uint16_t width; ///< Image width + uint16_t height; ///< Image height + uint16_t frame_count; ///< Number of frames in this image +} painter_image_desc_t; + +/** + * @typedef A handle to a Quantum Painter image. + */ +typedef const painter_image_desc_t *painter_image_handle_t; + +/** + * @typedef A descriptor for a Quantum Painter font. + */ +typedef struct painter_font_desc_t { + uint8_t line_height; ///< The number of pixels in height for each line +} painter_font_desc_t; + +/** + * @typedef A handle to a Quantum Painter font. + */ +typedef const painter_font_desc_t *painter_font_handle_t; + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API + +/** + * Initialize a device and set its rotation. + * + * @param device[in] the handle of the device to initialize + * @param rotation[in] the rotation to use + * @return true if initialization succeeded + * @return false if initialization failed + */ +bool qp_init(painter_device_t device, painter_rotation_t rotation); + +/** + * Controls whether a display is on or off. + * + * @note If backlighting is used to control brightness (such as for an LCD), it will need to be handled external to + * Quantum Painter. + * + * @param device[in] the handle of the device to control + * @param power_on[in] whether or not the device should be on + * @return true if controlling the power state succeeded + * @return false if controlling the power state failed + */ +bool qp_power(painter_device_t device, bool power_on); + +/** + * Clears a device's screen. + * + * @param device[in] the handle of the device to control + * @return true if clearing the screen succeeded + * @return false if clearing the screen failed + */ +bool qp_clear(painter_device_t device); + +/** + * Transmits any outstanding data to the screen in order to persist all changes to the display. + * + * @note Drivers without internal framebuffers will likely ignore this API. + * + * @param device[in] the handle of the device to control + * @return true if flushing changes to the screen succeeded + * @return false if flushing changes to the screen failed + */ +bool qp_flush(painter_device_t device); + +/** + * Retrieves the size, rotation, and offsets for the display. + * + * @note Any arguments of NULL will be ignored. + * + * @param device[in] the handle of the device to control + * @param width[out] the device's width + * @param height[out] the device's height + * @param rotation[out] the device's rotation + * @param offset_x[out] the device's x-offset applied while drawing + * @param offset_y[out] the device's y-offset applied while drawing + */ +void qp_get_geometry(painter_device_t device, uint16_t *width, uint16_t *height, painter_rotation_t *rotation, uint16_t *offset_x, uint16_t *offset_y); + +/** + * Allows repositioning of the viewport if the panel geometry offsets are non-zero. + * + * @param device[in] the handle of the device to control + * @param offset_x[in] the device's x-offset applied while drawing + * @param offset_y[in] the device's y-offset applied while drawing + */ +void qp_set_viewport_offsets(painter_device_t device, uint16_t offset_x, uint16_t offset_y); + +/** + * Sets a pixel to the specified color. + * + * @param device[in] the handle of the device to control + * @param x[in] the x-position to draw onto the device + * @param y[in] the y-position to draw onto the device + * @param hue[in] the hue to use, with 0-360 mapped to 0-255 + * @param sat[in] the saturation to use, with 0-100% mapped to 0-255 + * @param val[in] the value to use, with 0-100% mapped to 0-255 + * @return true if setting the pixel succeeded + * @return false if setting the pixel failed + */ +bool qp_setpixel(painter_device_t device, uint16_t x, uint16_t y, uint8_t hue, uint8_t sat, uint8_t val); + +/** + * Draws a line using the specified color. + * + * @param device[in] the handle of the device to control + * @param x0[in] the device's x-position to start + * @param y0[in] the device's y-position to start + * @param x1[in] the device's x-position to finish + * @param y1[in] the device's y-position to finish + * @param hue[in] the hue to use, with 0-360 mapped to 0-255 + * @param sat[in] the saturation to use, with 0-100% mapped to 0-255 + * @param val[in] the value to use, with 0-100% mapped to 0-255 + * @return true if drawing the line succeeded + * @return false if drawing the line failed + */ +bool qp_line(painter_device_t device, uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint8_t hue, uint8_t sat, uint8_t val); + +/** + * Draws a rectangle using the specified color, optionally filled. + * + * @param device[in] the handle of the device to control + * @param left[in] the device's x-position to start + * @param top[in] the device's y-position to start + * @param right[in] the device's x-position to finish + * @param bottom[in] the device's y-position to finish + * @param hue[in] the hue to use, with 0-360 mapped to 0-255 + * @param sat[in] the saturation to use, with 0-100% mapped to 0-255 + * @param val[in] the value to use, with 0-100% mapped to 0-255 + * @param filled[in] whether the rectangle should be filled + * @return true if drawing the rectangle succeeded + * @return false if drawing the rectangle failed + */ +bool qp_rect(painter_device_t device, uint16_t left, uint16_t top, uint16_t right, uint16_t bottom, uint8_t hue, uint8_t sat, uint8_t val, bool filled); + +/** + * Draws a circle using the specified color, optionally filled. + * + * @param device[in] the handle of the device to control + * @param x[in] the x-position of the centre of the circle to draw onto the device + * @param y[in] the y-position of the centre of the circle to draw onto the device + * @param radius[in] the radius of the circle to draw + * @param hue[in] the hue to use, with 0-360 mapped to 0-255 + * @param sat[in] the saturation to use, with 0-100% mapped to 0-255 + * @param val[in] the value to use, with 0-100% mapped to 0-255 + * @param filled[in] whether the circle should be filled + * @return true if drawing the circle succeeded + * @return false if drawing the circle failed + */ +bool qp_circle(painter_device_t device, uint16_t x, uint16_t y, uint16_t radius, uint8_t hue, uint8_t sat, uint8_t val, bool filled); + +/** + * Draws a ellipse using the specified color, optionally filled. + * + * @param device[in] the handle of the device to control + * @param x[in] the x-position of the centre of the ellipse to draw onto the device + * @param y[in] the y-position of the centre of the ellipse to draw onto the device + * @param sizex[in] the horizontal size of the ellipse + * @param sizey[in] the vertical size of the ellipse + * @param hue[in] the hue to use, with 0-360 mapped to 0-255 + * @param sat[in] the saturation to use, with 0-100% mapped to 0-255 + * @param val[in] the value to use, with 0-100% mapped to 0-255 + * @param filled[in] whether the ellipse should be filled + * @return true if drawing the ellipse succeeded + * @return false if drawing the ellipse failed + */ +bool qp_ellipse(painter_device_t device, uint16_t x, uint16_t y, uint16_t sizex, uint16_t sizey, uint8_t hue, uint8_t sat, uint8_t val, bool filled); + +/** + * Sets up the location on the display to stream raw pixel data to the display, using \ref qp_pixdata. + * + * @note This is for advanced uses only, and should not be required for normal Quantum Painter functionality. + * + * @param device[in] the handle of the device to control + * @param left[in] the device's x-position to start + * @param top[in] the device's y-position to start + * @param right[in] the device's x-position to finish + * @param bottom[in] the device's y-position to finish + * @return true if setting the viewport succeeded + * @return false if setting the viewport failed + */ +bool qp_viewport(painter_device_t device, uint16_t left, uint16_t top, uint16_t right, uint16_t bottom); + +/** + * Streams raw pixel data (in the native panel format) to the area previously set by \ref qp_viewport. + * + * @note This is for advanced uses only, and should not be required for normal Quantum Painter functionality. + * + * @param device[in] the handle of the device to control + * @param pixel_data[in] pointer to buffer data + * @param native_pixel_count[in] the number of pixels to transmit + * @return true if streaming of data succeeded + * @return false if streaming of data failed + */ +bool qp_pixdata(painter_device_t device, const void *pixel_data, uint32_t native_pixel_count); + +/** + * Loads an image into memory. + * + * @note Images can be unloaded by calling \ref qp_close_image. + * + * @param buffer[in] the image data to load + * @return an image handle usable with \ref qp_drawimage, \ref qp_drawimage_recolor, \ref qp_animate, and + * \ref qp_animate_recolor. + * @return NULL if loading the image failed + */ +painter_image_handle_t qp_load_image_mem(const void *buffer); + +/** + * Closes an image handle when no longer in use. + * + * @param image[in] the handle of the image to unload + * @return true if unloading the image succeeded + * @return false if unloading the image failed + */ +bool qp_close_image(painter_image_handle_t image); + +/** + * Draws an image to the display. + * + * @param device[in] the handle of the device to control + * @param x[in] the x-position where the image should be drawn onto the device + * @param y[in] the y-position where the image should be drawn onto the device + * @param image[in] the handle of the image to draw + * @return true if drawing the image succeeded + * @return false if drawing the image failed + */ +bool qp_drawimage(painter_device_t device, uint16_t x, uint16_t y, painter_image_handle_t image); + +/** + * Draws an image to the display, recoloring monochrome images to the desired foreground/background. + * + * @param device[in] the handle of the device to control + * @param x[in] the x-position where the image should be drawn onto the device + * @param y[in] the y-position where the image should be drawn onto the device + * @param image[in] the handle of the image to draw + * @param hue_fg[in] the foreground hue to use, with 0-360 mapped to 0-255 + * @param sat_fg[in] the foreground saturation to use, with 0-100% mapped to 0-255 + * @param val_fg[in] the foreground value to use, with 0-100% mapped to 0-255 + * @param hue_bg[in] the background hue to use, with 0-360 mapped to 0-255 + * @param sat_bg[in] the background saturation to use, with 0-100% mapped to 0-255 + * @param val_bg[in] the background value to use, with 0-100% mapped to 0-255 + * @return true if drawing the image succeeded + * @return false if drawing the image failed + */ +bool qp_drawimage_recolor(painter_device_t device, uint16_t x, uint16_t y, painter_image_handle_t image, uint8_t hue_fg, uint8_t sat_fg, uint8_t val_fg, uint8_t hue_bg, uint8_t sat_bg, uint8_t val_bg); + +/** + * Draws an animation to the display. + * + * @param device[in] the handle of the device to control + * @param x[in] the x-position where the image should be drawn onto the device + * @param y[in] the y-position where the image should be drawn onto the device + * @param image[in] the handle of the image to draw + * @return the \ref deferred_token to use with \ref qp_stop_animation in order to stop animating + * @return INVALID_DEFERRED_TOKEN if animating the image failed + */ +deferred_token qp_animate(painter_device_t device, uint16_t x, uint16_t y, painter_image_handle_t image); + +/** + * Draws an animation to the display, recoloring monochrome images to the desired foreground/background. + * + * @param device[in] the handle of the device to control + * @param x[in] the x-position where the image should be drawn onto the device + * @param y[in] the y-position where the image should be drawn onto the device + * @param image[in] the handle of the image to draw + * @param hue_fg[in] the foreground hue to use, with 0-360 mapped to 0-255 + * @param sat_fg[in] the foreground saturation to use, with 0-100% mapped to 0-255 + * @param val_fg[in] the foreground value to use, with 0-100% mapped to 0-255 + * @param hue_bg[in] the background hue to use, with 0-360 mapped to 0-255 + * @param sat_bg[in] the background saturation to use, with 0-100% mapped to 0-255 + * @param val_bg[in] the background value to use, with 0-100% mapped to 0-255 + * @return the \ref deferred_token to use with \ref qp_stop_animation in order to stop animating + * @return INVALID_DEFERRED_TOKEN if animating the image failed + */ +deferred_token qp_animate_recolor(painter_device_t device, uint16_t x, uint16_t y, painter_image_handle_t image, uint8_t hue_fg, uint8_t sat_fg, uint8_t val_fg, uint8_t hue_bg, uint8_t sat_bg, uint8_t val_bg); + +/** + * Cancels a running animation. + * + * @param anim_token[in] the animation token returned by \ref qp_animate, or \ref qp_animate_recolor. + */ +void qp_stop_animation(deferred_token anim_token); + +/** + * Loads a font into memory. + * + * @note Fonts can be unloaded by calling \ref qp_close_font. + * + * @param buffer[in] the font data to load + * @return an image handle usable with \ref qp_textwidth, \ref qp_drawtext, and \ref qp_drawtext_recolor. + * @return NULL if loading the font failed + */ +painter_font_handle_t qp_load_font_mem(const void *buffer); + +/** + * Closes a font handle when no longer in use. + * + * @param font[in] the handle of the font to unload + * @return true if unloading the font succeeded + * @return false if unloading the font failed + */ +bool qp_close_font(painter_font_handle_t font); + +/** + * Measures the width (in pixels) of the supplied string, given the specified font. + * + * @param font[in] the handle of the font + * @param str[in] the string to measure + * @return the width (in pixels) needed to draw the specified string + */ +int16_t qp_textwidth(painter_font_handle_t font, const char *str); + +/** + * Draws text to the display. + * + * @param device[in] the handle of the device to control + * @param x[in] the x-position where the text should be drawn onto the device + * @param y[in] the y-position where the text should be drawn onto the device + * @param font[in] the handle of the font + * @param str[in] the string to draw + * @return the width (in pixels) used when drawing the specified string + */ +int16_t qp_drawtext(painter_device_t device, uint16_t x, uint16_t y, painter_font_handle_t font, const char *str); + +/** + * Draws text to the display, recoloring monochrome fonts to the desired foreground/background. + * + * @param device[in] the handle of the device to control + * @param x[in] the x-position where the text should be drawn onto the device + * @param y[in] the y-position where the text should be drawn onto the device + * @param font[in] the handle of the font + * @param str[in] the string to draw + * @param hue_fg[in] the foreground hue to use, with 0-360 mapped to 0-255 + * @param sat_fg[in] the foreground saturation to use, with 0-100% mapped to 0-255 + * @param val_fg[in] the foreground value to use, with 0-100% mapped to 0-255 + * @param hue_bg[in] the background hue to use, with 0-360 mapped to 0-255 + * @param sat_bg[in] the background saturation to use, with 0-100% mapped to 0-255 + * @param val_bg[in] the background value to use, with 0-100% mapped to 0-255 + * @return the width (in pixels) used when drawing the specified string + */ +int16_t qp_drawtext_recolor(painter_device_t device, uint16_t x, uint16_t y, painter_font_handle_t font, const char *str, uint8_t hue_fg, uint8_t sat_fg, uint8_t val_fg, uint8_t hue_bg, uint8_t sat_bg, uint8_t val_bg); + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter Drivers + +#ifdef QUANTUM_PAINTER_ILI9163_ENABLE +# include "qp_ili9163.h" +#endif // QUANTUM_PAINTER_ILI9163_ENABLE + +#ifdef QUANTUM_PAINTER_ILI9341_ENABLE +# include "qp_ili9341.h" +#endif // QUANTUM_PAINTER_ILI9341_ENABLE + +#ifdef QUANTUM_PAINTER_ST7789_ENABLE +# include "qp_st7789.h" +#endif // QUANTUM_PAINTER_ST7789_ENABLE + +#ifdef QUANTUM_PAINTER_GC9A01_ENABLE +# include "qp_gc9a01.h" +#endif // QUANTUM_PAINTER_GC9A01_ENABLE + +#ifdef QUANTUM_PAINTER_SSD1351_ENABLE +# include "qp_ssd1351.h" +#endif // QUANTUM_PAINTER_SSD1351_ENABLE diff --git a/quantum/painter/qp_comms.c b/quantum/painter/qp_comms.c new file mode 100644 index 0000000000..dc17b49460 --- /dev/null +++ b/quantum/painter/qp_comms.c @@ -0,0 +1,72 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#include "qp_comms.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Base comms APIs + +bool qp_comms_init(painter_device_t device) { + struct painter_driver_t *driver = (struct painter_driver_t *)device; + if (!driver->validate_ok) { + qp_dprintf("qp_comms_init: fail (validation_ok == false)\n"); + return false; + } + + return driver->comms_vtable->comms_init(device); +} + +bool qp_comms_start(painter_device_t device) { + struct painter_driver_t *driver = (struct painter_driver_t *)device; + if (!driver->validate_ok) { + qp_dprintf("qp_comms_start: fail (validation_ok == false)\n"); + return false; + } + + return driver->comms_vtable->comms_start(device); +} + +void qp_comms_stop(painter_device_t device) { + struct painter_driver_t *driver = (struct painter_driver_t *)device; + if (!driver->validate_ok) { + qp_dprintf("qp_comms_stop: fail (validation_ok == false)\n"); + return; + } + + driver->comms_vtable->comms_stop(device); +} + +uint32_t qp_comms_send(painter_device_t device, const void *data, uint32_t byte_count) { + struct painter_driver_t *driver = (struct painter_driver_t *)device; + if (!driver->validate_ok) { + qp_dprintf("qp_comms_send: fail (validation_ok == false)\n"); + return false; + } + + return driver->comms_vtable->comms_send(device, data, byte_count); +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Comms APIs that use a D/C pin + +void qp_comms_command(painter_device_t device, uint8_t cmd) { + struct painter_driver_t * driver = (struct painter_driver_t *)device; + struct painter_comms_with_command_vtable_t *comms_vtable = (struct painter_comms_with_command_vtable_t *)driver->comms_vtable; + comms_vtable->send_command(device, cmd); +} + +void qp_comms_command_databyte(painter_device_t device, uint8_t cmd, uint8_t data) { + qp_comms_command(device, cmd); + qp_comms_send(device, &data, sizeof(data)); +} + +uint32_t qp_comms_command_databuf(painter_device_t device, uint8_t cmd, const void *data, uint32_t byte_count) { + qp_comms_command(device, cmd); + return qp_comms_send(device, data, byte_count); +} + +void qp_comms_bulk_command_sequence(painter_device_t device, const uint8_t *sequence, size_t sequence_len) { + struct painter_driver_t * driver = (struct painter_driver_t *)device; + struct painter_comms_with_command_vtable_t *comms_vtable = (struct painter_comms_with_command_vtable_t *)driver->comms_vtable; + comms_vtable->bulk_command_sequence(device, sequence, sequence_len); +} diff --git a/quantum/painter/qp_comms.h b/quantum/painter/qp_comms.h new file mode 100644 index 0000000000..8fbf25c201 --- /dev/null +++ b/quantum/painter/qp_comms.h @@ -0,0 +1,25 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#pragma once + +#include <stdbool.h> +#include <stdlib.h> + +#include "qp_internal.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Base comms APIs + +bool qp_comms_init(painter_device_t device); +bool qp_comms_start(painter_device_t device); +void qp_comms_stop(painter_device_t device); +uint32_t qp_comms_send(painter_device_t device, const void* data, uint32_t byte_count); + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Comms APIs that use a D/C pin + +void qp_comms_command(painter_device_t device, uint8_t cmd); +void qp_comms_command_databyte(painter_device_t device, uint8_t cmd, uint8_t data); +uint32_t qp_comms_command_databuf(painter_device_t device, uint8_t cmd, const void* data, uint32_t byte_count); +void qp_comms_bulk_command_sequence(painter_device_t device, const uint8_t* sequence, size_t sequence_len); diff --git a/quantum/painter/qp_draw.h b/quantum/painter/qp_draw.h new file mode 100644 index 0000000000..7094d80eaa --- /dev/null +++ b/quantum/painter/qp_draw.h @@ -0,0 +1,85 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#pragma once + +#include "qp_internal.h" +#include "qp_stream.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter utility functions + +// Global variable used for native pixel data streaming. +extern uint8_t qp_internal_global_pixdata_buffer[QUANTUM_PAINTER_PIXDATA_BUFFER_SIZE]; + +// Check if the supplied bpp is capable of being rendered +bool qp_internal_bpp_capable(uint8_t bits_per_pixel); + +// Returns the number of pixels that can fit in the pixdata buffer +uint32_t qp_internal_num_pixels_in_buffer(painter_device_t device); + +// Fills the supplied buffer with equivalent native pixels matching the supplied HSV +void qp_internal_fill_pixdata(painter_device_t device, uint32_t num_pixels, uint8_t hue, uint8_t sat, uint8_t val); + +// qp_setpixel internal implementation, but uses the global pixdata buffer with pre-converted native pixel. Only the first pixel is used. +bool qp_internal_setpixel_impl(painter_device_t device, uint16_t x, uint16_t y); + +// qp_rect internal implementation, but uses the global pixdata buffer with pre-converted native pixels. +bool qp_internal_fillrect_helper_impl(painter_device_t device, uint16_t l, uint16_t t, uint16_t r, uint16_t b); + +// Convert from input pixel data + palette to equivalent pixels +typedef int16_t (*qp_internal_byte_input_callback)(void* cb_arg); +typedef bool (*qp_internal_pixel_output_callback)(qp_pixel_t* palette, uint8_t index, void* cb_arg); +bool qp_internal_decode_palette(painter_device_t device, uint32_t pixel_count, uint8_t bits_per_pixel, qp_internal_byte_input_callback input_callback, void* input_arg, qp_pixel_t* palette, qp_internal_pixel_output_callback output_callback, void* output_arg); +bool qp_internal_decode_grayscale(painter_device_t device, uint32_t pixel_count, uint8_t bits_per_pixel, qp_internal_byte_input_callback input_callback, void* input_arg, qp_internal_pixel_output_callback output_callback, void* output_arg); +bool qp_internal_decode_recolor(painter_device_t device, uint32_t pixel_count, uint8_t bits_per_pixel, qp_internal_byte_input_callback input_callback, void* input_arg, qp_pixel_t fg_hsv888, qp_pixel_t bg_hsv888, qp_internal_pixel_output_callback output_callback, void* output_arg); + +// Global variable used for interpolated pixel lookup table. +#if QUANTUM_PAINTER_SUPPORTS_256_PALETTE +extern qp_pixel_t qp_internal_global_pixel_lookup_table[256]; +#else +extern qp_pixel_t qp_internal_global_pixel_lookup_table[16]; +#endif + +// Generates a color-interpolated lookup table based off the number of items, from foreground to background, for use with monochrome image rendering. +// Returns true if a palette was created, false if the palette is reused. +// As this uses a global, this may present a problem if using the same parameters but a different screen converts pixels -- use qp_internal_invalidate_palette() below to reset. +bool qp_internal_interpolate_palette(qp_pixel_t fg_hsv888, qp_pixel_t bg_hsv888, int16_t steps); + +// Resets the global palette so that it can be regenerated. Only needed if the colors are identical, but a different display is used with a different internal pixel format. +void qp_internal_invalidate_palette(void); + +// Helper shared between image and font rendering -- sets up the global palette to match the palette block specified in the asset. Expects the stream to be positioned at the start of the block header. +bool qp_internal_load_qgf_palette(qp_stream_t* stream, uint8_t bpp); + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter codec functions + +enum qp_internal_rle_mode_t { + MARKER_BYTE, + REPEATING_RUN, + NON_REPEATING_RUN, +}; + +struct qp_internal_byte_input_state { + painter_device_t device; + qp_stream_t* src_stream; + int16_t curr; + union { + // RLE-specific + struct { + enum qp_internal_rle_mode_t mode; + uint8_t remain; // number of bytes remaining in the current mode + } rle; + }; +}; + +struct qp_internal_pixel_output_state { + painter_device_t device; + uint32_t pixel_write_pos; + uint32_t max_pixels; +}; + +bool qp_internal_pixel_appender(qp_pixel_t* palette, uint8_t index, void* cb_arg); + +qp_internal_byte_input_callback qp_internal_prepare_input_state(struct qp_internal_byte_input_state* input_state, painter_compression_t compression); diff --git a/quantum/painter/qp_draw_circle.c b/quantum/painter/qp_draw_circle.c new file mode 100644 index 0000000000..edaae35835 --- /dev/null +++ b/quantum/painter/qp_draw_circle.c @@ -0,0 +1,172 @@ +// Copyright 2021 Paul Cotter (@gr1mr3aver) +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#include "qp.h" +#include "qp_internal.h" +#include "qp_comms.h" +#include "qp_draw.h" + +// Utilize 8-way symmetry to draw circles +static bool qp_circle_helper_impl(painter_device_t device, uint16_t centerx, uint16_t centery, uint16_t offsetx, uint16_t offsety, bool filled) { + /* + Circles have the property of 8-way symmetry, so eight pixels can be drawn + for each computed [offsetx,offsety] given the center coordinates + represented by [centerx,centery]. + + For filled circles, we can draw horizontal lines between each pair of + pixels with the same final value of y. + + Two special cases exist and have been optimized: + 1) offsetx == offsety (the final point), makes half the coordinates + equivalent, so we can omit them (and the corresponding fill lines) + 2) offsetx == 0 (the starting point) means that some horizontal lines + would be a single pixel in length, so we write individual pixels instead. + This also makes half the symmetrical points identical to their twins, + so we only need four points or two points and one line + */ + + int16_t xpx = ((int16_t)centerx) + ((int16_t)offsetx); + int16_t xmx = ((int16_t)centerx) - ((int16_t)offsetx); + int16_t xpy = ((int16_t)centerx) + ((int16_t)offsety); + int16_t xmy = ((int16_t)centerx) - ((int16_t)offsety); + int16_t ypx = ((int16_t)centery) + ((int16_t)offsetx); + int16_t ymx = ((int16_t)centery) - ((int16_t)offsetx); + int16_t ypy = ((int16_t)centery) + ((int16_t)offsety); + int16_t ymy = ((int16_t)centery) - ((int16_t)offsety); + + if (offsetx == 0) { + if (!qp_internal_setpixel_impl(device, centerx, ypy)) { + return false; + } + if (!qp_internal_setpixel_impl(device, centerx, ymy)) { + return false; + } + if (filled) { + if (!qp_internal_fillrect_helper_impl(device, xpy, centery, xmy, centery)) { + return false; + } + } else { + if (!qp_internal_setpixel_impl(device, xpy, centery)) { + return false; + } + if (!qp_internal_setpixel_impl(device, xmy, centery)) { + return false; + } + } + } else if (offsetx == offsety) { + if (filled) { + if (!qp_internal_fillrect_helper_impl(device, xpy, ypy, xmy, ypy)) { + return false; + } + if (!qp_internal_fillrect_helper_impl(device, xpy, ymy, xmy, ymy)) { + return false; + } + } else { + if (!qp_internal_setpixel_impl(device, xpy, ypy)) { + return false; + } + if (!qp_internal_setpixel_impl(device, xmy, ypy)) { + return false; + } + if (!qp_internal_setpixel_impl(device, xpy, ymy)) { + return false; + } + if (!qp_internal_setpixel_impl(device, xmy, ymy)) { + return false; + } + } + + } else { + if (filled) { + if (!qp_internal_fillrect_helper_impl(device, xpx, ypy, xmx, ypy)) { + return false; + } + if (!qp_internal_fillrect_helper_impl(device, xpx, ymy, xmx, ymy)) { + return false; + } + if (!qp_internal_fillrect_helper_impl(device, xpy, ypx, xmy, ypx)) { + return false; + } + if (!qp_internal_fillrect_helper_impl(device, xpy, ymx, xmy, ymx)) { + return false; + } + } else { + if (!qp_internal_setpixel_impl(device, xpx, ypy)) { + return false; + } + if (!qp_internal_setpixel_impl(device, xmx, ypy)) { + return false; + } + if (!qp_internal_setpixel_impl(device, xpx, ymy)) { + return false; + } + if (!qp_internal_setpixel_impl(device, xmx, ymy)) { + return false; + } + if (!qp_internal_setpixel_impl(device, xpy, ypx)) { + return false; + } + if (!qp_internal_setpixel_impl(device, xmy, ypx)) { + return false; + } + if (!qp_internal_setpixel_impl(device, xpy, ymx)) { + return false; + } + if (!qp_internal_setpixel_impl(device, xmy, ymx)) { + return false; + } + } + } + + return true; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_circle + +bool qp_circle(painter_device_t device, uint16_t x, uint16_t y, uint16_t radius, uint8_t hue, uint8_t sat, uint8_t val, bool filled) { + qp_dprintf("qp_circle: entry\n"); + struct painter_driver_t *driver = (struct painter_driver_t *)device; + if (!driver->validate_ok) { + qp_dprintf("qp_circle: fail (validation_ok == false)\n"); + return false; + } + + // plot the initial set of points for x, y and r + int16_t xcalc = 0; + int16_t ycalc = (int16_t)radius; + int16_t err = ((5 - (radius >> 2)) >> 2); + + qp_internal_fill_pixdata(device, (radius * 2) + 1, hue, sat, val); + + if (!qp_comms_start(device)) { + qp_dprintf("qp_circle: fail (could not start comms)\n"); + return false; + } + + bool ret = true; + if (!qp_circle_helper_impl(device, x, y, xcalc, ycalc, filled)) { + ret = false; + } + + if (ret) { + while (xcalc < ycalc) { + xcalc++; + if (err < 0) { + err += (xcalc << 1) + 1; + } else { + ycalc--; + err += ((xcalc - ycalc) << 1) + 1; + } + if (!qp_circle_helper_impl(device, x, y, xcalc, ycalc, filled)) { + ret = false; + break; + } + } + } + + qp_dprintf("qp_circle: %s\n", ret ? "ok" : "fail"); + qp_comms_stop(device); + return ret; +} diff --git a/quantum/painter/qp_draw_codec.c b/quantum/painter/qp_draw_codec.c new file mode 100644 index 0000000000..438dce3994 --- /dev/null +++ b/quantum/painter/qp_draw_codec.c @@ -0,0 +1,142 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#include "qp_internal.h" +#include "qp_draw.h" +#include "qp_comms.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Palette / Monochrome-format decoder + +static const qp_pixel_t qp_pixel_white = {.hsv888 = {.h = 0, .s = 0, .v = 255}}; +static const qp_pixel_t qp_pixel_black = {.hsv888 = {.h = 0, .s = 0, .v = 0}}; + +bool qp_internal_bpp_capable(uint8_t bits_per_pixel) { +#if !(QUANTUM_PAINTER_SUPPORTS_256_PALETTE) + if (bits_per_pixel > 4) { + qp_dprintf("qp_internal_decode_palette: image bpp greater than 4\n"); + return false; + } +#endif + + if (bits_per_pixel > 8) { + qp_dprintf("qp_internal_decode_palette: image bpp greater than 8\n"); + return false; + } + + return true; +} + +bool qp_internal_decode_palette(painter_device_t device, uint32_t pixel_count, uint8_t bits_per_pixel, qp_internal_byte_input_callback input_callback, void* input_arg, qp_pixel_t* palette, qp_internal_pixel_output_callback output_callback, void* output_arg) { + const uint8_t pixel_bitmask = (1 << bits_per_pixel) - 1; + const uint8_t pixels_per_byte = 8 / bits_per_pixel; + uint32_t remaining_pixels = pixel_count; // don't try to derive from byte_count, we may not use an entire byte + while (remaining_pixels > 0) { + uint8_t byteval = input_callback(input_arg); + if (byteval < 0) { + return false; + } + uint8_t loop_pixels = remaining_pixels < pixels_per_byte ? remaining_pixels : pixels_per_byte; + for (uint8_t q = 0; q < loop_pixels; ++q) { + if (!output_callback(palette, byteval & pixel_bitmask, output_arg)) { + return false; + } + byteval >>= bits_per_pixel; + } + remaining_pixels -= loop_pixels; + } + return true; +} + +bool qp_internal_decode_grayscale(painter_device_t device, uint32_t pixel_count, uint8_t bits_per_pixel, qp_internal_byte_input_callback input_callback, void* input_arg, qp_internal_pixel_output_callback output_callback, void* output_arg) { + return qp_internal_decode_recolor(device, pixel_count, bits_per_pixel, input_callback, input_arg, qp_pixel_white, qp_pixel_black, output_callback, output_arg); +} + +bool qp_internal_decode_recolor(painter_device_t device, uint32_t pixel_count, uint8_t bits_per_pixel, qp_internal_byte_input_callback input_callback, void* input_arg, qp_pixel_t fg_hsv888, qp_pixel_t bg_hsv888, qp_internal_pixel_output_callback output_callback, void* output_arg) { + struct painter_driver_t* driver = (struct painter_driver_t*)device; + int16_t steps = 1 << bits_per_pixel; // number of items we need to interpolate + if (qp_internal_interpolate_palette(fg_hsv888, bg_hsv888, steps)) { + if (!driver->driver_vtable->palette_convert(device, steps, qp_internal_global_pixel_lookup_table)) { + return false; + } + } + + return qp_internal_decode_palette(device, pixel_count, bits_per_pixel, input_callback, input_arg, qp_internal_global_pixel_lookup_table, output_callback, output_arg); +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Progressive pull of bytes, push of pixels + +static inline int16_t qp_drawimage_byte_uncompressed_decoder(void* cb_arg) { + struct qp_internal_byte_input_state* state = (struct qp_internal_byte_input_state*)cb_arg; + state->curr = qp_stream_get(state->src_stream); + return state->curr; +} + +static inline int16_t qp_drawimage_byte_rle_decoder(void* cb_arg) { + struct qp_internal_byte_input_state* state = (struct qp_internal_byte_input_state*)cb_arg; + + // Work out if we're parsing the initial marker byte + if (state->rle.mode == MARKER_BYTE) { + uint8_t c = qp_stream_get(state->src_stream); + if (c >= 128) { + state->rle.mode = NON_REPEATING_RUN; // non-repeated run + state->rle.remain = c - 127; + } else { + state->rle.mode = REPEATING_RUN; // repeated run + state->rle.remain = c; + } + + state->curr = qp_stream_get(state->src_stream); + } + + // Work out which byte we're returning + uint8_t c = state->curr; + + // Decrement the counter of the bytes remaining + state->rle.remain--; + + if (state->rle.remain > 0) { + // If we're in a non-repeating run, queue up the next byte + if (state->rle.mode == NON_REPEATING_RUN) { + state->curr = qp_stream_get(state->src_stream); + } + } else { + // Swap back to querying the marker byte mode + state->rle.mode = MARKER_BYTE; + } + + return c; +} + +bool qp_internal_pixel_appender(qp_pixel_t* palette, uint8_t index, void* cb_arg) { + struct qp_internal_pixel_output_state* state = (struct qp_internal_pixel_output_state*)cb_arg; + struct painter_driver_t* driver = (struct painter_driver_t*)state->device; + + if (!driver->driver_vtable->append_pixels(state->device, qp_internal_global_pixdata_buffer, palette, state->pixel_write_pos++, 1, &index)) { + return false; + } + + // If we've hit the transmit limit, send out the entire buffer and reset the write position + if (state->pixel_write_pos == state->max_pixels) { + if (!driver->driver_vtable->pixdata(state->device, qp_internal_global_pixdata_buffer, state->pixel_write_pos)) { + return false; + } + state->pixel_write_pos = 0; + } + + return true; +} + +qp_internal_byte_input_callback qp_internal_prepare_input_state(struct qp_internal_byte_input_state* input_state, painter_compression_t compression) { + switch (compression) { + case IMAGE_UNCOMPRESSED: + return qp_drawimage_byte_uncompressed_decoder; + case IMAGE_COMPRESSED_RLE: + input_state->rle.mode = MARKER_BYTE; + input_state->rle.remain = 0; + return qp_drawimage_byte_rle_decoder; + default: + return NULL; + } +} diff --git a/quantum/painter/qp_draw_core.c b/quantum/painter/qp_draw_core.c new file mode 100644 index 0000000000..c31c734132 --- /dev/null +++ b/quantum/painter/qp_draw_core.c @@ -0,0 +1,294 @@ +// Copyright 2021-2022 Nick Brassel (@tzarc) +// Copyright 2021 Paul Cotter (@gr1mr3aver) +// SPDX-License-Identifier: GPL-2.0-or-later + +#include "qp_internal.h" +#include "qp_comms.h" +#include "qp_draw.h" +#include "qgf.h" + +_Static_assert((QUANTUM_PAINTER_PIXDATA_BUFFER_SIZE > 0) && (QUANTUM_PAINTER_PIXDATA_BUFFER_SIZE % 16) == 0, "QUANTUM_PAINTER_PIXDATA_BUFFER_SIZE needs to be a non-zero multiple of 16"); + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Global variables +// +// NOTE: The variables in this section are intentionally outside a stack frame. They are able to be defined with larger +// sizes than the normal stack frames would allow, and as such need to be external. +// +// **** DO NOT refactor this and decide to place the variables inside the function calling them -- you will **** +// **** very likely get artifacts rendered to the screen as a result. **** +// + +// Buffer used for transmitting native pixel data to the downstream device. +uint8_t qp_internal_global_pixdata_buffer[QUANTUM_PAINTER_PIXDATA_BUFFER_SIZE]; + +// Static buffer to contain a generated color palette +static bool generated_palette = false; +static int16_t generated_steps = -1; +static qp_pixel_t interpolated_fg_hsv888; +static qp_pixel_t interpolated_bg_hsv888; +#if QUANTUM_PAINTER_SUPPORTS_256_PALETTE +qp_pixel_t qp_internal_global_pixel_lookup_table[256]; +#else +qp_pixel_t qp_internal_global_pixel_lookup_table[16]; +#endif + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Helpers + +uint32_t qp_internal_num_pixels_in_buffer(painter_device_t device) { + struct painter_driver_t *driver = (struct painter_driver_t *)device; + return ((QUANTUM_PAINTER_PIXDATA_BUFFER_SIZE * 8) / driver->native_bits_per_pixel); +} + +// qp_setpixel internal implementation, but accepts a buffer with pre-converted native pixel. Only the first pixel is used. +bool qp_internal_setpixel_impl(painter_device_t device, uint16_t x, uint16_t y) { + struct painter_driver_t *driver = (struct painter_driver_t *)device; + return driver->driver_vtable->viewport(device, x, y, x, y) && driver->driver_vtable->pixdata(device, qp_internal_global_pixdata_buffer, 1); +} + +// Fills the global native pixel buffer with equivalent pixels matching the supplied HSV +void qp_internal_fill_pixdata(painter_device_t device, uint32_t num_pixels, uint8_t hue, uint8_t sat, uint8_t val) { + struct painter_driver_t *driver = (struct painter_driver_t *)device; + uint32_t pixels_in_pixdata = qp_internal_num_pixels_in_buffer(device); + num_pixels = QP_MIN(pixels_in_pixdata, num_pixels); + + // Convert the color to native pixel format + qp_pixel_t color = {.hsv888 = {.h = hue, .s = sat, .v = val}}; + driver->driver_vtable->palette_convert(device, 1, &color); + + // Append the required number of pixels + uint8_t palette_idx = 0; + for (uint32_t i = 0; i < num_pixels; ++i) { + driver->driver_vtable->append_pixels(device, qp_internal_global_pixdata_buffer, &color, i, 1, &palette_idx); + } +} + +// Resets the global palette so that it can be regenerated. Only needed if the colors are identical, but a different display is used with a different internal pixel format. +void qp_internal_invalidate_palette(void) { + generated_palette = false; + generated_steps = -1; +} + +// Interpolates between two colors to generate a palette +bool qp_internal_interpolate_palette(qp_pixel_t fg_hsv888, qp_pixel_t bg_hsv888, int16_t steps) { + // Check if we need to generate a new palette -- if the input parameters match then assume the palette can stay unchanged. + // This may present a problem if using the same parameters but a different screen converts pixels -- use qp_internal_invalidate_palette() to reset. + if (generated_palette == true && generated_steps == steps && memcmp(&interpolated_fg_hsv888, &fg_hsv888, sizeof(fg_hsv888)) == 0 && memcmp(&interpolated_bg_hsv888, &bg_hsv888, sizeof(bg_hsv888)) == 0) { + // We already have the correct palette, no point regenerating it. + return false; + } + + // Save the parameters so we know whether we can skip generation + generated_palette = true; + generated_steps = steps; + interpolated_fg_hsv888 = fg_hsv888; + interpolated_bg_hsv888 = bg_hsv888; + + int16_t hue_fg = fg_hsv888.hsv888.h; + int16_t hue_bg = bg_hsv888.hsv888.h; + + // Make sure we take the "shortest" route from one hue to the other + if ((hue_fg - hue_bg) >= 128) { + hue_bg += 256; + } else if ((hue_fg - hue_bg) <= -128) { + hue_bg -= 256; + } + + // Interpolate each of the lookup table entries + for (int16_t i = 0; i < steps; ++i) { + qp_internal_global_pixel_lookup_table[i].hsv888.h = (uint8_t)((hue_fg - hue_bg) * i / (steps - 1) + hue_bg); + qp_internal_global_pixel_lookup_table[i].hsv888.s = (uint8_t)((fg_hsv888.hsv888.s - bg_hsv888.hsv888.s) * i / (steps - 1) + bg_hsv888.hsv888.s); + qp_internal_global_pixel_lookup_table[i].hsv888.v = (uint8_t)((fg_hsv888.hsv888.v - bg_hsv888.hsv888.v) * i / (steps - 1) + bg_hsv888.hsv888.v); + + qp_dprintf("qp_internal_interpolate_palette: %3d of %d -- H: %3d, S: %3d, V: %3d\n", (int)(i + 1), (int)steps, (int)qp_internal_global_pixel_lookup_table[i].hsv888.h, (int)qp_internal_global_pixel_lookup_table[i].hsv888.s, (int)qp_internal_global_pixel_lookup_table[i].hsv888.v); + } + + return true; +} + +// Helper shared between image and font rendering -- sets up the global palette to match the palette block specified in the asset. Expects the stream to be positioned at the start of the block header. +bool qp_internal_load_qgf_palette(qp_stream_t *stream, uint8_t bpp) { + qgf_palette_v1_t palette_descriptor; + if (qp_stream_read(&palette_descriptor, sizeof(qgf_palette_v1_t), 1, stream) != 1) { + qp_dprintf("Failed to read palette_descriptor, expected length was not %d\n", (int)sizeof(qgf_palette_v1_t)); + return false; + } + + // BPP determines the number of palette entries, each entry is a HSV888 triplet. + const uint16_t palette_entries = 1u << bpp; + + // Ensure we aren't reusing any palette + qp_internal_invalidate_palette(); + + // Read the palette entries + for (uint16_t i = 0; i < palette_entries; ++i) { + // Read the palette entry + qgf_palette_entry_v1_t entry; + if (qp_stream_read(&entry, sizeof(qgf_palette_entry_v1_t), 1, stream) != 1) { + return false; + } + + // Update the lookup table + qp_internal_global_pixel_lookup_table[i].hsv888.h = entry.h; + qp_internal_global_pixel_lookup_table[i].hsv888.s = entry.s; + qp_internal_global_pixel_lookup_table[i].hsv888.v = entry.v; + + qp_dprintf("qp_internal_load_qgf_palette: %3d of %d -- H: %3d, S: %3d, V: %3d\n", (int)(i + 1), (int)palette_entries, (int)qp_internal_global_pixel_lookup_table[i].hsv888.h, (int)qp_internal_global_pixel_lookup_table[i].hsv888.s, (int)qp_internal_global_pixel_lookup_table[i].hsv888.v); + } + + return true; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_setpixel + +bool qp_setpixel(painter_device_t device, uint16_t x, uint16_t y, uint8_t hue, uint8_t sat, uint8_t val) { + struct painter_driver_t *driver = (struct painter_driver_t *)device; + if (!driver->validate_ok) { + qp_dprintf("qp_setpixel: fail (validation_ok == false)\n"); + return false; + } + + if (!qp_comms_start(device)) { + qp_dprintf("Failed to start comms in qp_setpixel\n"); + return false; + } + + qp_internal_fill_pixdata(device, 1, hue, sat, val); + bool ret = qp_internal_setpixel_impl(device, x, y); + qp_comms_stop(device); + qp_dprintf("qp_setpixel: %s\n", ret ? "ok" : "fail"); + return ret; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_line + +bool qp_line(painter_device_t device, uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint8_t hue, uint8_t sat, uint8_t val) { + if (x0 == x1 || y0 == y1) { + qp_dprintf("qp_line(%d, %d, %d, %d): entry (deferring to qp_rect)\n", (int)x0, (int)y0, (int)x1, (int)y1); + bool ret = qp_rect(device, x0, y0, x1, y1, hue, sat, val, true); + qp_dprintf("qp_line(%d, %d, %d, %d): %s (deferred to qp_rect)\n", (int)x0, (int)y0, (int)x1, (int)y1, ret ? "ok" : "fail"); + return ret; + } + + qp_dprintf("qp_line(%d, %d, %d, %d): entry\n", (int)x0, (int)y0, (int)x1, (int)y1); + struct painter_driver_t *driver = (struct painter_driver_t *)device; + if (!driver->validate_ok) { + qp_dprintf("qp_line: fail (validation_ok == false)\n"); + return false; + } + + if (!qp_comms_start(device)) { + qp_dprintf("Failed to start comms in qp_line\n"); + return false; + } + + qp_internal_fill_pixdata(device, 1, hue, sat, val); + + // draw angled line using Bresenham's algo + int16_t x = ((int16_t)x0); + int16_t y = ((int16_t)y0); + int16_t slopex = ((int16_t)x0) < ((int16_t)x1) ? 1 : -1; + int16_t slopey = ((int16_t)y0) < ((int16_t)y1) ? 1 : -1; + int16_t dx = abs(((int16_t)x1) - ((int16_t)x0)); + int16_t dy = -abs(((int16_t)y1) - ((int16_t)y0)); + + int16_t e = dx + dy; + int16_t e2 = 2 * e; + + bool ret = true; + while (x != x1 || y != y1) { + if (!qp_internal_setpixel_impl(device, x, y)) { + ret = false; + break; + } + e2 = 2 * e; + if (e2 >= dy) { + e += dy; + x += slopex; + } + if (e2 <= dx) { + e += dx; + y += slopey; + } + } + // draw the last pixel + if (!qp_internal_setpixel_impl(device, x, y)) { + ret = false; + } + + qp_comms_stop(device); + qp_dprintf("qp_line(%d, %d, %d, %d): %s\n", (int)x0, (int)y0, (int)x1, (int)y1, ret ? "ok" : "fail"); + return ret; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_rect + +bool qp_internal_fillrect_helper_impl(painter_device_t device, uint16_t left, uint16_t top, uint16_t right, uint16_t bottom) { + uint32_t pixels_in_pixdata = qp_internal_num_pixels_in_buffer(device); + struct painter_driver_t *driver = (struct painter_driver_t *)device; + + uint16_t l = QP_MIN(left, right); + uint16_t r = QP_MAX(left, right); + uint16_t t = QP_MIN(top, bottom); + uint16_t b = QP_MAX(top, bottom); + uint16_t w = r - l + 1; + uint16_t h = b - t + 1; + + uint32_t remaining = w * h; + driver->driver_vtable->viewport(device, l, t, r, b); + while (remaining > 0) { + uint32_t transmit = QP_MIN(remaining, pixels_in_pixdata); + if (!driver->driver_vtable->pixdata(device, qp_internal_global_pixdata_buffer, transmit)) { + return false; + } + remaining -= transmit; + } + return true; +} + +bool qp_rect(painter_device_t device, uint16_t left, uint16_t top, uint16_t right, uint16_t bottom, uint8_t hue, uint8_t sat, uint8_t val, bool filled) { + qp_dprintf("qp_rect(%d, %d, %d, %d): entry\n", (int)left, (int)top, (int)right, (int)bottom); + struct painter_driver_t *driver = (struct painter_driver_t *)device; + if (!driver->validate_ok) { + qp_dprintf("qp_rect: fail (validation_ok == false)\n"); + return false; + } + + // Cater for cases where people have submitted the coordinates backwards + uint16_t l = QP_MIN(left, right); + uint16_t r = QP_MAX(left, right); + uint16_t t = QP_MIN(top, bottom); + uint16_t b = QP_MAX(top, bottom); + uint16_t w = r - l + 1; + uint16_t h = b - t + 1; + + bool ret = true; + if (!qp_comms_start(device)) { + qp_dprintf("Failed to start comms in qp_rect\n"); + return false; + } + + if (filled) { + // Fill up the pixdata buffer with the required number of native pixels + qp_internal_fill_pixdata(device, w * h, hue, sat, val); + + // Perform the draw + ret = qp_internal_fillrect_helper_impl(device, l, t, r, b); + } else { + // Fill up the pixdata buffer with the required number of native pixels + qp_internal_fill_pixdata(device, QP_MAX(w, h), hue, sat, val); + + // Draw 4x filled single-width rects to create an outline + if (!qp_internal_fillrect_helper_impl(device, l, t, r, t) || !qp_internal_fillrect_helper_impl(device, l, b, r, b) || !qp_internal_fillrect_helper_impl(device, l, t + 1, l, b - 1) || !qp_internal_fillrect_helper_impl(device, r, t + 1, r, b - 1)) { + ret = false; + } + } + + qp_comms_stop(device); + qp_dprintf("qp_rect(%d, %d, %d, %d): %s\n", (int)l, (int)t, (int)r, (int)b, ret ? "ok" : "fail"); + return ret; +} diff --git a/quantum/painter/qp_draw_ellipse.c b/quantum/painter/qp_draw_ellipse.c new file mode 100644 index 0000000000..7f2f4abcfd --- /dev/null +++ b/quantum/painter/qp_draw_ellipse.c @@ -0,0 +1,116 @@ +// Copyright 2021 Paul Cotter (@gr1mr3aver) +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#include "qp_internal.h" +#include "qp_comms.h" +#include "qp_draw.h" + +// Utilize 4-way symmetry to draw an ellipse +static bool qp_ellipse_helper_impl(painter_device_t device, uint16_t centerx, uint16_t centery, uint16_t offsetx, uint16_t offsety, bool filled) { + /* + Ellipses have the property of 4-way symmetry, so four pixels can be drawn + for each computed [offsetx,offsety] given the center coordinates + represented by [centerx,centery]. + + For filled ellipses, we can draw horizontal lines between each pair of + pixels with the same final value of y. + + When offsetx == 0 only two pixels can be drawn for filled or unfilled ellipses + */ + + int16_t xpx = ((int16_t)centerx) + ((int16_t)offsetx); + int16_t xmx = ((int16_t)centerx) - ((int16_t)offsetx); + int16_t ypy = ((int16_t)centery) + ((int16_t)offsety); + int16_t ymy = ((int16_t)centery) - ((int16_t)offsety); + + if (offsetx == 0) { + if (!qp_internal_setpixel_impl(device, xpx, ypy)) { + return false; + } + if (!qp_internal_setpixel_impl(device, xpx, ymy)) { + return false; + } + } else if (filled) { + if (!qp_internal_fillrect_helper_impl(device, xpx, ypy, xmx, ypy)) { + return false; + } + if (offsety > 0 && !qp_internal_fillrect_helper_impl(device, xpx, ymy, xmx, ymy)) { + return false; + } + } else { + if (!qp_internal_setpixel_impl(device, xpx, ypy)) { + return false; + } + if (!qp_internal_setpixel_impl(device, xpx, ymy)) { + return false; + } + if (!qp_internal_setpixel_impl(device, xmx, ypy)) { + return false; + } + if (!qp_internal_setpixel_impl(device, xmx, ymy)) { + return false; + } + } + + return true; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_ellipse + +bool qp_ellipse(painter_device_t device, uint16_t x, uint16_t y, uint16_t sizex, uint16_t sizey, uint8_t hue, uint8_t sat, uint8_t val, bool filled) { + qp_dprintf("qp_ellipse: entry\n"); + struct painter_driver_t *driver = (struct painter_driver_t *)device; + if (!driver->validate_ok) { + qp_dprintf("qp_ellipse: fail (validation_ok == false)\n"); + return false; + } + + int16_t aa = ((int16_t)sizex) * ((int16_t)sizex); + int16_t bb = ((int16_t)sizey) * ((int16_t)sizey); + int16_t fa = 4 * ((int16_t)aa); + int16_t fb = 4 * ((int16_t)bb); + + int16_t dx = 0; + int16_t dy = ((int16_t)sizey); + + qp_internal_fill_pixdata(device, QP_MAX(sizex, sizey), hue, sat, val); + + if (!qp_comms_start(device)) { + qp_dprintf("qp_ellipse: fail (could not start comms)\n"); + return false; + } + + bool ret = true; + for (int16_t delta = (2 * bb) + (aa * (1 - (2 * sizey))); bb * dx <= aa * dy; dx++) { + if (!qp_ellipse_helper_impl(device, x, y, dx, dy, filled)) { + ret = false; + break; + } + if (delta >= 0) { + delta += fa * (1 - dy); + dy--; + } + delta += bb * (4 * dx + 6); + } + + dx = sizex; + dy = 0; + + for (int16_t delta = (2 * aa) + (bb * (1 - (2 * sizex))); aa * dy <= bb * dx; dy++) { + if (!qp_ellipse_helper_impl(device, x, y, dx, dy, filled)) { + ret = false; + break; + } + if (delta >= 0) { + delta += fb * (1 - dx); + dx--; + } + delta += aa * (4 * dy + 6); + } + + qp_dprintf("qp_ellipse: %s\n", ret ? "ok" : "fail"); + qp_comms_stop(device); + return ret; +} diff --git a/quantum/painter/qp_draw_image.c b/quantum/painter/qp_draw_image.c new file mode 100644 index 0000000000..5822758dce --- /dev/null +++ b/quantum/painter/qp_draw_image.c @@ -0,0 +1,382 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#include "qp_internal.h" +#include "qp_draw.h" +#include "qp_comms.h" +#include "qgf.h" +#include "deferred_exec.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// QGF image handles + +typedef struct qgf_image_handle_t { + painter_image_desc_t base; + bool validate_ok; + union { + qp_stream_t stream; + qp_memory_stream_t mem_stream; +#ifdef QP_STREAM_HAS_FILE_IO + qp_file_stream_t file_stream; +#endif // QP_STREAM_HAS_FILE_IO + }; +} qgf_image_handle_t; + +static qgf_image_handle_t image_descriptors[QUANTUM_PAINTER_NUM_IMAGES] = {0}; + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_load_image_mem + +painter_image_handle_t qp_load_image_mem(const void *buffer) { + qp_dprintf("qp_load_image_mem: entry\n"); + qgf_image_handle_t *image = NULL; + + // Find a free slot + for (int i = 0; i < QUANTUM_PAINTER_NUM_IMAGES; ++i) { + if (!image_descriptors[i].validate_ok) { + image = &image_descriptors[i]; + break; + } + } + + // Drop out if not found + if (!image) { + qp_dprintf("qp_load_image_mem: fail (no free slot)\n"); + return NULL; + } + + // Assume we can read the graphics descriptor + image->mem_stream = qp_make_memory_stream((void *)buffer, sizeof(qgf_graphics_descriptor_v1_t)); + + // Update the length of the stream to match, and rewind to the start + image->mem_stream.length = qgf_get_total_size(&image->stream); + image->mem_stream.position = 0; + + // Now that we know the length, validate the input data + if (!qgf_validate_stream(&image->stream)) { + qp_dprintf("qp_load_image_mem: fail (failed validation)\n"); + return NULL; + } + + // Fill out the QP image descriptor + qgf_read_graphics_descriptor(&image->stream, &image->base.width, &image->base.height, &image->base.frame_count, NULL); + + // Validation success, we can return the handle + image->validate_ok = true; + qp_dprintf("qp_load_image_mem: ok\n"); + return (painter_image_handle_t)image; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_close_image + +bool qp_close_image(painter_image_handle_t image) { + qgf_image_handle_t *qgf_image = (qgf_image_handle_t *)image; + if (!qgf_image->validate_ok) { + qp_dprintf("qp_close_image: fail (invalid image)\n"); + return false; + } + + // Free up this image for use elsewhere. + qgf_image->validate_ok = false; + return true; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_drawimage + +bool qp_drawimage(painter_device_t device, uint16_t x, uint16_t y, painter_image_handle_t image) { + return qp_drawimage_recolor(device, x, y, image, 0, 0, 255, 0, 0, 0); +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_drawimage_recolor + +typedef struct qgf_frame_info_t { + painter_compression_t compression_scheme; + uint8_t bpp; + bool has_palette; + bool is_delta; + uint16_t left; + uint16_t top; + uint16_t right; + uint16_t bottom; + uint16_t delay; +} qgf_frame_info_t; + +static bool qp_drawimage_prepare_frame_for_stream_read(painter_device_t device, qgf_image_handle_t *qgf_image, uint16_t frame_number, qp_pixel_t fg_hsv888, qp_pixel_t bg_hsv888, qgf_frame_info_t *info) { + struct painter_driver_t *driver = (struct painter_driver_t *)device; + + // Drop out if we can't actually place the data we read out anywhere + if (!info) { + qp_dprintf("Failed to prepare stream for read, output info buffer unavailable\n"); + return false; + } + + // Seek to the frame + qgf_seek_to_frame_descriptor(&qgf_image->stream, frame_number); + + // Read the frame descriptor + qgf_frame_v1_t frame_descriptor; + if (qp_stream_read(&frame_descriptor, sizeof(qgf_frame_v1_t), 1, &qgf_image->stream) != 1) { + qp_dprintf("Failed to read frame_descriptor, expected length was not %d\n", (int)sizeof(qgf_frame_v1_t)); + return false; + } + + // Parse out the frame info + if (!qgf_parse_frame_descriptor(&frame_descriptor, &info->bpp, &info->has_palette, &info->is_delta, &info->compression_scheme, &info->delay)) { + return false; + } + + // Ensure we aren't reusing any palette + qp_internal_invalidate_palette(); + + if (!qp_internal_bpp_capable(info->bpp)) { + qp_dprintf("qp_drawimage_recolor: fail (image bpp too high (%d), check QUANTUM_PAINTER_SUPPORTS_256_PALETTE)\n", (int)info->bpp); + qp_comms_stop(device); + return false; + } + + // Handle palette if needed + const uint16_t palette_entries = 1u << info->bpp; + bool needs_pixconvert = false; + if (info->has_palette) { + // Load the palette from the stream + if (!qp_internal_load_qgf_palette((qp_stream_t *)&qgf_image->stream, info->bpp)) { + return false; + } + + needs_pixconvert = true; + } else { + // Interpolate from fg/bg + needs_pixconvert = qp_internal_interpolate_palette(fg_hsv888, bg_hsv888, palette_entries); + } + + if (needs_pixconvert) { + // Convert the palette to native format + if (!driver->driver_vtable->palette_convert(device, palette_entries, qp_internal_global_pixel_lookup_table)) { + qp_dprintf("qp_drawimage_recolor: fail (could not convert pixels to native)\n"); + qp_comms_stop(device); + return false; + } + } + + // Handle delta if needed + if (info->is_delta) { + qgf_delta_v1_t delta_descriptor; + if (qp_stream_read(&delta_descriptor, sizeof(qgf_delta_v1_t), 1, &qgf_image->stream) != 1) { + qp_dprintf("Failed to read delta_descriptor, expected length was not %d\n", (int)sizeof(qgf_delta_v1_t)); + return false; + } + + info->left = delta_descriptor.left; + info->top = delta_descriptor.top; + info->right = delta_descriptor.right; + info->bottom = delta_descriptor.bottom; + } + + // Read the data block + qgf_data_v1_t data_descriptor; + if (qp_stream_read(&data_descriptor, sizeof(qgf_data_v1_t), 1, &qgf_image->stream) != 1) { + qp_dprintf("Failed to read data_descriptor, expected length was not %d\n", (int)sizeof(qgf_data_v1_t)); + return false; + } + + // Stream is now at the point of being able to read pixdata + return true; +} + +static bool qp_drawimage_recolor_impl(painter_device_t device, uint16_t x, uint16_t y, painter_image_handle_t image, int frame_number, qgf_frame_info_t *frame_info, qp_pixel_t fg_hsv888, qp_pixel_t bg_hsv888) { + qp_dprintf("qp_drawimage_recolor: entry\n"); + struct painter_driver_t *driver = (struct painter_driver_t *)device; + if (!driver->validate_ok) { + qp_dprintf("qp_drawimage_recolor: fail (validation_ok == false)\n"); + return false; + } + + qgf_image_handle_t *qgf_image = (qgf_image_handle_t *)image; + if (!qgf_image->validate_ok) { + qp_dprintf("qp_drawimage_recolor: fail (invalid image)\n"); + return false; + } + + // Read the frame info + if (!qp_drawimage_prepare_frame_for_stream_read(device, qgf_image, frame_number, fg_hsv888, bg_hsv888, frame_info)) { + qp_dprintf("qp_drawimage_recolor: fail (could not read frame %d)\n", frame_number); + return false; + } + + if (!qp_comms_start(device)) { + qp_dprintf("qp_drawimage_recolor: fail (could not start comms)\n"); + return false; + } + + uint16_t l, t, r, b; + if (frame_info->is_delta) { + l = x + frame_info->left; + t = y + frame_info->top; + r = x + frame_info->right - 1; + b = y + frame_info->bottom - 1; + } else { + l = x; + t = y; + r = x + image->width - 1; + b = y + image->height - 1; + } + uint32_t pixel_count = ((uint32_t)(r - l + 1)) * (b - t + 1); + + // Configure where we're going to be rendering to + if (!driver->driver_vtable->viewport(device, l, t, r, b)) { + qp_dprintf("qp_drawimage_recolor: fail (could not set viewport)\n"); + qp_comms_stop(device); + return false; + } + + // Set up the input state + struct qp_internal_byte_input_state input_state = {.device = device, .src_stream = &qgf_image->stream}; + qp_internal_byte_input_callback input_callback = qp_internal_prepare_input_state(&input_state, frame_info->compression_scheme); + if (input_callback == NULL) { + qp_dprintf("qp_drawimage_recolor: fail (invalid image compression scheme)\n"); + qp_comms_stop(device); + return false; + } + + // Set up the output state + struct qp_internal_pixel_output_state output_state = {.device = device, .pixel_write_pos = 0, .max_pixels = qp_internal_num_pixels_in_buffer(device)}; + + // Decode the pixel data and stream to the display + bool ret = qp_internal_decode_palette(device, pixel_count, frame_info->bpp, input_callback, &input_state, qp_internal_global_pixel_lookup_table, qp_internal_pixel_appender, &output_state); + + // Any leftovers need transmission as well. + if (ret && output_state.pixel_write_pos > 0) { + ret &= driver->driver_vtable->pixdata(device, qp_internal_global_pixdata_buffer, output_state.pixel_write_pos); + } + + qp_dprintf("qp_drawimage_recolor: %s\n", ret ? "ok" : "fail"); + qp_comms_stop(device); + return ret; +} + +bool qp_drawimage_recolor(painter_device_t device, uint16_t x, uint16_t y, painter_image_handle_t image, uint8_t hue_fg, uint8_t sat_fg, uint8_t val_fg, uint8_t hue_bg, uint8_t sat_bg, uint8_t val_bg) { + qgf_frame_info_t frame_info = {0}; + qp_pixel_t fg_hsv888 = {.hsv888 = {.h = hue_fg, .s = sat_fg, .v = val_fg}}; + qp_pixel_t bg_hsv888 = {.hsv888 = {.h = hue_bg, .s = sat_bg, .v = val_bg}}; + return qp_drawimage_recolor_impl(device, x, y, image, 0, &frame_info, fg_hsv888, bg_hsv888); +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_animate + +deferred_token qp_animate(painter_device_t device, uint16_t x, uint16_t y, painter_image_handle_t image) { + return qp_animate_recolor(device, x, y, image, 0, 0, 255, 0, 0, 0); +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_animate_recolor + +typedef struct animation_state_t { + painter_device_t device; + uint16_t x; + uint16_t y; + painter_image_handle_t image; + qp_pixel_t fg_hsv888; + qp_pixel_t bg_hsv888; + uint16_t frame_number; + deferred_token defer_token; +} animation_state_t; + +static deferred_executor_t animation_executors[QUANTUM_PAINTER_CONCURRENT_ANIMATIONS] = {0}; +static animation_state_t animation_states[QUANTUM_PAINTER_CONCURRENT_ANIMATIONS] = {0}; + +static deferred_token qp_render_animation_state(animation_state_t *state, uint16_t *delay_ms) { + qgf_frame_info_t frame_info = {0}; + qp_dprintf("qp_render_animation_state: entry (frame #%d)\n", (int)state->frame_number); + bool ret = qp_drawimage_recolor_impl(state->device, state->x, state->y, state->image, state->frame_number, &frame_info, state->fg_hsv888, state->bg_hsv888); + if (ret) { + ++state->frame_number; + if (state->frame_number >= state->image->frame_count) { + state->frame_number = 0; + } + *delay_ms = frame_info.delay; + } + qp_dprintf("qp_render_animation_state: %s (delay %dms)\n", ret ? "ok" : "fail", (int)(*delay_ms)); + return ret; +} + +static uint32_t animation_callback(uint32_t trigger_time, void *cb_arg) { + animation_state_t *state = (animation_state_t *)cb_arg; + uint16_t delay_ms; + bool ret = qp_render_animation_state(state, &delay_ms); + if (!ret) { + // Setting the device to NULL clears the animation slot + state->device = NULL; + } + // If we're successful, keep animating -- returning 0 cancels the deferred execution + return ret ? delay_ms : 0; +} + +deferred_token qp_animate_recolor(painter_device_t device, uint16_t x, uint16_t y, painter_image_handle_t image, uint8_t hue_fg, uint8_t sat_fg, uint8_t val_fg, uint8_t hue_bg, uint8_t sat_bg, uint8_t val_bg) { + qp_dprintf("qp_animate_recolor: entry\n"); + + animation_state_t *anim_state = NULL; + for (int i = 0; i < QUANTUM_PAINTER_CONCURRENT_ANIMATIONS; ++i) { + if (animation_states[i].device == NULL) { + anim_state = &animation_states[i]; + break; + } + } + + if (!anim_state) { + qp_dprintf("qp_animate_recolor: fail (could not find free animation slot)\n"); + return INVALID_DEFERRED_TOKEN; + } + + // Prepare the animation state + anim_state->device = device; + anim_state->x = x; + anim_state->y = y; + anim_state->image = image; + anim_state->fg_hsv888 = (qp_pixel_t){.hsv888 = {.h = hue_fg, .s = sat_fg, .v = val_fg}}; + anim_state->bg_hsv888 = (qp_pixel_t){.hsv888 = {.h = hue_bg, .s = sat_bg, .v = val_bg}}; + anim_state->frame_number = 0; + + // Draw the first frame + uint16_t delay_ms; + if (!qp_render_animation_state(anim_state, &delay_ms)) { + anim_state->device = NULL; // disregard the allocated animation slot + qp_dprintf("qp_animate_recolor: fail (could not render first frame)\n"); + return INVALID_DEFERRED_TOKEN; + } + + // Set up the timer + anim_state->defer_token = defer_exec_advanced(animation_executors, QUANTUM_PAINTER_CONCURRENT_ANIMATIONS, delay_ms, animation_callback, anim_state); + if (anim_state->defer_token == INVALID_DEFERRED_TOKEN) { + anim_state->device = NULL; // disregard the allocated animation slot + qp_dprintf("qp_animate_recolor: fail (could not set up animation executor)\n"); + return INVALID_DEFERRED_TOKEN; + } + + qp_dprintf("qp_animate_recolor: ok (deferred token = %d)\n", (int)anim_state->defer_token); + return anim_state->defer_token; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_stop_animation + +void qp_stop_animation(deferred_token anim_token) { + for (int i = 0; i < QUANTUM_PAINTER_CONCURRENT_ANIMATIONS; ++i) { + if (animation_states[i].defer_token == anim_token) { + cancel_deferred_exec_advanced(animation_executors, QUANTUM_PAINTER_CONCURRENT_ANIMATIONS, anim_token); + animation_states[i].device = NULL; + return; + } + } +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter Core API: qp_internal_animation_tick + +void qp_internal_animation_tick(void) { + static uint32_t last_anim_exec = 0; + deferred_exec_advanced_task(animation_executors, QUANTUM_PAINTER_CONCURRENT_ANIMATIONS, &last_anim_exec); +} diff --git a/quantum/painter/qp_draw_text.c b/quantum/painter/qp_draw_text.c new file mode 100644 index 0000000000..f99e082cad --- /dev/null +++ b/quantum/painter/qp_draw_text.c @@ -0,0 +1,444 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#include <quantum.h> +#include <utf8.h> + +#include "qp_internal.h" +#include "qp_draw.h" +#include "qp_comms.h" +#include "qff.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// QFF font handles + +typedef struct qff_font_handle_t { + painter_font_desc_t base; + bool validate_ok; + bool has_ascii_table; + uint16_t num_unicode_glyphs; + uint8_t bpp; + bool has_palette; + painter_compression_t compression_scheme; + union { + qp_stream_t stream; + qp_memory_stream_t mem_stream; +#ifdef QP_STREAM_HAS_FILE_IO + qp_file_stream_t file_stream; +#endif // QP_STREAM_HAS_FILE_IO + }; +#if QUANTUM_PAINTER_LOAD_FONTS_TO_RAM + bool owns_buffer; + void *buffer; +#endif // QUANTUM_PAINTER_LOAD_FONTS_TO_RAM +} qff_font_handle_t; + +static qff_font_handle_t font_descriptors[QUANTUM_PAINTER_NUM_FONTS] = {0}; + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_load_font_mem + +painter_font_handle_t qp_load_font_mem(const void *buffer) { + qp_dprintf("qp_load_font_mem: entry\n"); + qff_font_handle_t *font = NULL; + + // Find a free slot + for (int i = 0; i < QUANTUM_PAINTER_NUM_FONTS; ++i) { + if (!font_descriptors[i].validate_ok) { + font = &font_descriptors[i]; + break; + } + } + + // Drop out if not found + if (!font) { + qp_dprintf("qp_load_font_mem: fail (no free slot)\n"); + return NULL; + } + + // Assume we can read the graphics descriptor + font->mem_stream = qp_make_memory_stream((void *)buffer, sizeof(qff_font_descriptor_v1_t)); + + // Update the length of the stream to match, and rewind to the start + font->mem_stream.length = qff_get_total_size(&font->stream); + font->mem_stream.position = 0; + + // Now that we know the length, validate the input data + if (!qff_validate_stream(&font->stream)) { + qp_dprintf("qp_load_font_mem: fail (failed validation)\n"); + return NULL; + } + +#if QUANTUM_PAINTER_LOAD_FONTS_TO_RAM + // Clear out any existing data + font->owns_buffer = false; + font->buffer = NULL; + + void *ram_buffer = malloc(font->mem_stream.length); + if (ram_buffer == NULL) { + qp_dprintf("qp_load_font_mem: could not allocate enough RAM for font, falling back to original\n"); + } else { + do { + // Copy the data into RAM + if (qp_stream_read(ram_buffer, 1, font->mem_stream.length, &font->mem_stream) != font->mem_stream.length) { + qp_dprintf("qp_load_font_mem: could not copy from flash to RAM, falling back to original\n"); + break; + } + + // Create the new stream with the new buffer + font->buffer = ram_buffer; + font->owns_buffer = true; + font->mem_stream = qp_make_memory_stream(font->buffer, font->mem_stream.length); + } while (0); + } + + // Free the buffer if we were unable to recreate the RAM copy. + if (ram_buffer != NULL && !font->owns_buffer) { + free(ram_buffer); + } +#endif // QUANTUM_PAINTER_LOAD_FONTS_TO_RAM + + // Read the info (parsing already successful above, no need to check return value) + qff_read_font_descriptor(&font->stream, &font->base.line_height, &font->has_ascii_table, &font->num_unicode_glyphs, &font->bpp, &font->has_palette, &font->compression_scheme, NULL); + + if (!qp_internal_bpp_capable(font->bpp)) { + qp_dprintf("qp_load_font_mem: fail (image bpp too high (%d), check QUANTUM_PAINTER_SUPPORTS_256_PALETTE)\n", (int)font->bpp); + qp_close_font((painter_font_handle_t)font); + return NULL; + } + + // Validation success, we can return the handle + font->validate_ok = true; + qp_dprintf("qp_load_font_mem: ok\n"); + return (painter_font_handle_t)font; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_close_font + +bool qp_close_font(painter_font_handle_t font) { + qff_font_handle_t *qff_font = (qff_font_handle_t *)font; + if (!qff_font->validate_ok) { + qp_dprintf("qp_close_font: fail (invalid font)\n"); + return false; + } + +#if QUANTUM_PAINTER_LOAD_FONTS_TO_RAM + // Nuke the buffer, if required + if (qff_font->owns_buffer) { + free(qff_font->buffer); + qff_font->buffer = NULL; + qff_font->owns_buffer = false; + } +#endif // QUANTUM_PAINTER_LOAD_FONTS_TO_RAM + + // Free up this font for use elsewhere. + qff_font->validate_ok = false; + return true; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Helpers + +// Callback to be invoked for each codepoint detected in the UTF8 input string +typedef bool (*code_point_handler)(qff_font_handle_t *qff_font, uint32_t code_point, uint8_t width, uint8_t height, void *cb_arg); + +// Helper that sets up the palette (if required) and returns the offset in the stream that the data starts +static inline bool qp_drawtext_prepare_font_for_render(painter_device_t device, qff_font_handle_t *qff_font, qp_pixel_t fg_hsv888, qp_pixel_t bg_hsv888, uint32_t *data_offset) { + struct painter_driver_t *driver = (struct painter_driver_t *)device; + + // Drop out if we can't actually place the data we read out anywhere + if (!data_offset) { + qp_dprintf("Failed to prepare stream for read, output info buffer unavailable\n"); + return false; + } + + // Work out where we're reading from + uint32_t offset = sizeof(qff_font_descriptor_v1_t); + if (qff_font->has_ascii_table) { + offset += sizeof(qff_ascii_glyph_table_v1_t); + } + if (qff_font->num_unicode_glyphs > 0) { + offset += sizeof(qff_unicode_glyph_table_v1_t) + (qff_font->num_unicode_glyphs * 6); + } + + // Handle palette if needed + const uint16_t palette_entries = 1u << qff_font->bpp; + bool needs_pixconvert = false; + if (qff_font->has_palette) { + // If this font has a palette, we need to read it out and set up the pixel lookup table + qp_stream_setpos(&qff_font->stream, offset); + if (!qp_internal_load_qgf_palette(&qff_font->stream, qff_font->bpp)) { + return false; + } + + // Skip this block, as far as offset calculations go + offset += sizeof(qgf_palette_v1_t) + (palette_entries * 3); + needs_pixconvert = true; + } else { + // Interpolate from fg/bg + int16_t palette_entries = 1 << qff_font->bpp; + needs_pixconvert = qp_internal_interpolate_palette(fg_hsv888, bg_hsv888, palette_entries); + } + + if (needs_pixconvert) { + // Convert the palette to native format + if (!driver->driver_vtable->palette_convert(device, palette_entries, qp_internal_global_pixel_lookup_table)) { + qp_dprintf("qp_drawtext_recolor: fail (could not convert pixels to native)\n"); + qp_comms_stop(device); + return false; + } + } + + *data_offset = offset; + return true; +} + +static inline bool qp_drawtext_prepare_glyph_for_render(qff_font_handle_t *qff_font, uint32_t code_point, uint8_t *width) { + if (code_point >= 0x20 && code_point < 0x7F && qff_font->has_ascii_table) { + // Do ascii table + qff_ascii_glyph_v1_t glyph_info; + uint32_t glyph_info_offset = sizeof(qff_font_descriptor_v1_t) // Skip the font descriptor + + sizeof(qgf_block_header_v1_t) // Skip the ascii table header + + (code_point - 0x20) * sizeof(qff_ascii_glyph_v1_t); // Jump direct to the data offset based on the glyph index + if (qp_stream_setpos(&qff_font->stream, glyph_info_offset) < 0) { + qp_dprintf("Failed to set stream position while reading ascii glyph info\n"); + return false; + } + + if (qp_stream_read(&glyph_info, sizeof(qff_ascii_glyph_v1_t), 1, &qff_font->stream) != 1) { + qp_dprintf("Failed to read glyph info\n"); + return false; + } + + uint8_t glyph_width = (uint8_t)(glyph_info.value & QFF_GLYPH_WIDTH_MASK); + uint32_t glyph_offset = ((glyph_info.value & QFF_GLYPH_OFFSET_MASK) >> QFF_GLYPH_WIDTH_BITS); + uint32_t data_offset = sizeof(qff_font_descriptor_v1_t) // Skip the font descriptor + + sizeof(qff_ascii_glyph_table_v1_t) // Skip the ascii table + + (qff_font->num_unicode_glyphs > 0 ? (sizeof(qff_unicode_glyph_table_v1_t) + (qff_font->num_unicode_glyphs * sizeof(qff_unicode_glyph_v1_t))) : 0) // Skip the unicode table + + (qff_font->has_palette ? (sizeof(qgf_palette_v1_t) + ((1 << qff_font->bpp) * sizeof(qgf_palette_entry_v1_t))) : 0) // Skip the palette + + sizeof(qgf_block_header_v1_t) // Skip the data block header + + glyph_offset; // Jump to the specified glyph offset + + if (qp_stream_setpos(&qff_font->stream, data_offset) < 0) { + qp_dprintf("Failed to set stream position while preparing ascii glyph data\n"); + return false; + } + + *width = glyph_width; + return true; + } else { + // Do unicode table, which may include singular ascii glyphs if full ascii table isn't specified + uint32_t glyph_info_offset = sizeof(qff_font_descriptor_v1_t) // Skip the font descriptor + + (qff_font->has_ascii_table ? sizeof(qff_ascii_glyph_table_v1_t) : 0) // Skip the ascii table + + sizeof(qgf_block_header_v1_t); // Skip the unicode block header + + if (qp_stream_setpos(&qff_font->stream, glyph_info_offset) < 0) { + qp_dprintf("Failed to set stream position while preparing glyph data\n"); + return false; + } + + qff_unicode_glyph_v1_t glyph_info; + for (uint16_t i = 0; i < qff_font->num_unicode_glyphs; ++i) { + if (qp_stream_read(&glyph_info, sizeof(qff_unicode_glyph_v1_t), 1, &qff_font->stream) != 1) { + qp_dprintf("Failed to set stream position while reading unicode glyph info\n"); + return false; + } + + if (glyph_info.code_point == code_point) { + uint8_t glyph_width = (uint8_t)(glyph_info.value & QFF_GLYPH_WIDTH_MASK); + uint32_t glyph_offset = ((glyph_info.value & QFF_GLYPH_OFFSET_MASK) >> QFF_GLYPH_WIDTH_BITS); + uint32_t data_offset = sizeof(qff_font_descriptor_v1_t) // Skip the font descriptor + + sizeof(qff_ascii_glyph_table_v1_t) // Skip the ascii table + + (qff_font->num_unicode_glyphs > 0 ? (sizeof(qff_unicode_glyph_table_v1_t) + (qff_font->num_unicode_glyphs * sizeof(qff_unicode_glyph_v1_t))) : 0) // Skip the unicode table + + (qff_font->has_palette ? (sizeof(qgf_palette_v1_t) + ((1 << qff_font->bpp) * sizeof(qgf_palette_entry_v1_t))) : 0) // Skip the palette + + sizeof(qgf_block_header_v1_t) // Skip the data block header + + glyph_offset; // Jump to the specified glyph offset + + if (qp_stream_setpos(&qff_font->stream, data_offset) < 0) { + qp_dprintf("Failed to set stream position while preparing unicode glyph data\n"); + return false; + } + + *width = glyph_width; + return true; + } + } + + // Not found + qp_dprintf("Failed to find unicode glyph info\n"); + return false; + } + return false; +} + +// Function to iterate over each UTF8 codepoint, invoking the callback for each decoded glyph +static inline bool qp_iterate_code_points(qff_font_handle_t *qff_font, const char *str, code_point_handler handler, void *cb_arg) { + while (*str) { + int32_t code_point = 0; + str = decode_utf8(str, &code_point); + if (code_point < 0) { + qp_dprintf("Invalid unicode code point decoded. Cannot render.\n"); + return false; + } + + uint8_t width; + if (!qp_drawtext_prepare_glyph_for_render(qff_font, code_point, &width)) { + qp_dprintf("Failed to prepare glyph for rendering.\n"); + return false; + } + + if (!handler(qff_font, code_point, width, qff_font->base.line_height, cb_arg)) { + qp_dprintf("Failed to execute glyph handler.\n"); + return false; + } + } + return true; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// String width calculation + +// Callback state +struct code_point_iter_calcwidth_state { + int16_t width; +}; + +// Codepoint handler callback: width calc +static inline bool qp_font_code_point_handler_calcwidth(qff_font_handle_t *qff_font, uint32_t code_point, uint8_t width, uint8_t height, void *cb_arg) { + struct code_point_iter_calcwidth_state *state = (struct code_point_iter_calcwidth_state *)cb_arg; + + // Increment the overall width by this glyph's width + state->width += width; + + return true; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// String drawing implementation + +// Callback state +struct code_point_iter_drawglyph_state { + painter_device_t device; + int16_t xpos; + int16_t ypos; + qp_internal_byte_input_callback input_callback; + struct qp_internal_byte_input_state * input_state; + struct qp_internal_pixel_output_state *output_state; +}; + +// Codepoint handler callback: drawing +static inline bool qp_font_code_point_handler_drawglyph(qff_font_handle_t *qff_font, uint32_t code_point, uint8_t width, uint8_t height, void *cb_arg) { + struct code_point_iter_drawglyph_state *state = (struct code_point_iter_drawglyph_state *)cb_arg; + struct painter_driver_t * driver = (struct painter_driver_t *)state->device; + + // Reset the input state's RLE mode -- the stream should already be correctly positioned by qp_iterate_code_points() + state->input_state->rle.mode = MARKER_BYTE; // ignored if not using RLE + + // Reset the output state + state->output_state->pixel_write_pos = 0; + + // Configure where we're going to be rendering to + driver->driver_vtable->viewport(state->device, state->xpos, state->ypos, state->xpos + width - 1, state->ypos + height - 1); + + // Move the x-position for the next glyph + state->xpos += width; + + // Decode the pixel data for the glyph + uint32_t pixel_count = ((uint32_t)width) * height; + bool ret = qp_internal_decode_palette(state->device, pixel_count, qff_font->bpp, state->input_callback, state->input_state, qp_internal_global_pixel_lookup_table, qp_internal_pixel_appender, state->output_state); + + // Any leftovers need transmission as well. + if (ret && state->output_state->pixel_write_pos > 0) { + ret &= driver->driver_vtable->pixdata(state->device, qp_internal_global_pixdata_buffer, state->output_state->pixel_write_pos); + } + + return ret; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_textwidth + +int16_t qp_textwidth(painter_font_handle_t font, const char *str) { + qff_font_handle_t *qff_font = (qff_font_handle_t *)font; + if (!qff_font->validate_ok) { + qp_dprintf("qp_textwidth: fail (invalid font)\n"); + return false; + } + + // Create the codepoint iterator state + struct code_point_iter_calcwidth_state state = {.width = 0}; + // Iterate each codepoint, return the calculated width if successful. + return qp_iterate_code_points(qff_font, str, qp_font_code_point_handler_calcwidth, &state) ? state.width : 0; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_drawtext + +int16_t qp_drawtext(painter_device_t device, uint16_t x, uint16_t y, painter_font_handle_t font, const char *str) { + // Offload to the recolor variant, substituting fg=white bg=black. + // Traditional LCDs with those colors will need to manually invoke qp_drawtext_recolor with the colors reversed. + return qp_drawtext_recolor(device, x, y, font, str, 0, 0, 255, 0, 0, 0); +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_drawtext_recolor + +int16_t qp_drawtext_recolor(painter_device_t device, uint16_t x, uint16_t y, painter_font_handle_t font, const char *str, uint8_t hue_fg, uint8_t sat_fg, uint8_t val_fg, uint8_t hue_bg, uint8_t sat_bg, uint8_t val_bg) { + qp_dprintf("qp_drawtext_recolor: entry\n"); + struct painter_driver_t *driver = (struct painter_driver_t *)device; + if (!driver->validate_ok) { + qp_dprintf("qp_drawtext_recolor: fail (validation_ok == false)\n"); + return 0; + } + + qff_font_handle_t *qff_font = (qff_font_handle_t *)font; + if (!qff_font->validate_ok) { + qp_dprintf("qp_drawtext_recolor: fail (invalid font)\n"); + return false; + } + + if (!qp_comms_start(device)) { + qp_dprintf("qp_drawtext_recolor: fail (could not start comms)\n"); + return 0; + } + + // Set up the byte input state and input callback + struct qp_internal_byte_input_state input_state = {.device = device, .src_stream = &qff_font->stream}; + qp_internal_byte_input_callback input_callback = qp_internal_prepare_input_state(&input_state, qff_font->compression_scheme); + if (input_callback == NULL) { + qp_dprintf("qp_drawtext_recolor: fail (invalid font compression scheme)\n"); + qp_comms_stop(device); + return false; + } + + // Set up the pixel output state + struct qp_internal_pixel_output_state output_state = {.device = device, .pixel_write_pos = 0, .max_pixels = qp_internal_num_pixels_in_buffer(device)}; + + // Set up the codepoint iteration state + struct code_point_iter_drawglyph_state state = {// Common + .device = device, + .xpos = x, + .ypos = y, + // Input + .input_callback = input_callback, + .input_state = &input_state, + // Output + .output_state = &output_state}; + + qp_pixel_t fg_hsv888 = {.hsv888 = {.h = hue_fg, .s = sat_fg, .v = val_fg}}; + qp_pixel_t bg_hsv888 = {.hsv888 = {.h = hue_bg, .s = sat_bg, .v = val_bg}}; + uint32_t data_offset; + if (!qp_drawtext_prepare_font_for_render(driver, qff_font, fg_hsv888, bg_hsv888, &data_offset)) { + qp_dprintf("qp_drawtext_recolor: fail (failed to prepare font for rendering)\n"); + qp_comms_stop(device); + return false; + } + + // Iterate the codepoints with the drawglyph callback + bool ret = qp_iterate_code_points(qff_font, str, qp_font_code_point_handler_drawglyph, &state); + + qp_dprintf("qp_drawtext_recolor: %s\n", ret ? "ok" : "fail"); + qp_comms_stop(device); + return ret ? (state.xpos - x) : 0; +} diff --git a/quantum/painter/qp_internal.h b/quantum/painter/qp_internal.h new file mode 100644 index 0000000000..e7a6d113c5 --- /dev/null +++ b/quantum/painter/qp_internal.h @@ -0,0 +1,33 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#pragma once + +#include "quantum.h" +#include "qp.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Helpers + +// Mark certain types that there should be no padding bytes between members. +#define QP_PACKED __attribute__((packed)) + +// Min/max defines +#define QP_MIN(X, Y) (((X) < (Y)) ? (X) : (Y)) +#define QP_MAX(X, Y) (((X) > (Y)) ? (X) : (Y)) + +#ifdef QUANTUM_PAINTER_DEBUG +# include <debug.h> +# include <print.h> +# define qp_dprintf(...) dprintf(__VA_ARGS__) +#else +# define qp_dprintf(...) \ + do { \ + } while (0) +#endif + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Specific internal definitions + +#include <qp_internal_formats.h> +#include <qp_internal_driver.h> diff --git a/quantum/painter/qp_internal_driver.h b/quantum/painter/qp_internal_driver.h new file mode 100644 index 0000000000..9e9d6bc848 --- /dev/null +++ b/quantum/painter/qp_internal_driver.h @@ -0,0 +1,82 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#pragma once + +#include "qp_internal.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Driver callbacks + +typedef bool (*painter_driver_init_func)(painter_device_t device, painter_rotation_t rotation); +typedef bool (*painter_driver_power_func)(painter_device_t device, bool power_on); +typedef bool (*painter_driver_clear_func)(painter_device_t device); +typedef bool (*painter_driver_flush_func)(painter_device_t device); +typedef bool (*painter_driver_viewport_func)(painter_device_t device, uint16_t left, uint16_t top, uint16_t right, uint16_t bottom); +typedef bool (*painter_driver_pixdata_func)(painter_device_t device, const void *pixel_data, uint32_t native_pixel_count); +typedef bool (*painter_driver_convert_palette_func)(painter_device_t device, int16_t palette_size, qp_pixel_t *palette); +typedef bool (*painter_driver_append_pixels)(painter_device_t device, uint8_t *target_buffer, qp_pixel_t *palette, uint32_t pixel_offset, uint32_t pixel_count, uint8_t *palette_indices); + +// Driver vtable definition +struct painter_driver_vtable_t { + painter_driver_init_func init; + painter_driver_power_func power; + painter_driver_clear_func clear; + painter_driver_flush_func flush; + painter_driver_viewport_func viewport; + painter_driver_pixdata_func pixdata; + painter_driver_convert_palette_func palette_convert; + painter_driver_append_pixels append_pixels; +}; + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Comms callbacks + +typedef bool (*painter_driver_comms_init_func)(painter_device_t device); +typedef bool (*painter_driver_comms_start_func)(painter_device_t device); +typedef void (*painter_driver_comms_stop_func)(painter_device_t device); +typedef uint32_t (*painter_driver_comms_send_func)(painter_device_t device, const void *data, uint32_t byte_count); + +struct painter_comms_vtable_t { + painter_driver_comms_init_func comms_init; + painter_driver_comms_start_func comms_start; + painter_driver_comms_stop_func comms_stop; + painter_driver_comms_send_func comms_send; +}; + +typedef void (*painter_driver_comms_send_command_func)(painter_device_t device, uint8_t cmd); +typedef void (*painter_driver_comms_bulk_command_sequence)(painter_device_t device, const uint8_t *sequence, size_t sequence_len); + +struct painter_comms_with_command_vtable_t { + struct painter_comms_vtable_t base; // must be first, so this object can be cast from the painter_comms_vtable_t* type + painter_driver_comms_send_command_func send_command; + painter_driver_comms_bulk_command_sequence bulk_command_sequence; +}; + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Driver base definition + +struct painter_driver_t { + const struct painter_driver_vtable_t *driver_vtable; + const struct painter_comms_vtable_t * comms_vtable; + + // Flag signifying if validation was successful + bool validate_ok; + + // Panel geometry + uint16_t panel_width; + uint16_t panel_height; + + // Target drawing rotation + painter_rotation_t rotation; + + // Automated offsets for setting viewport + uint16_t offset_x; + uint16_t offset_y; + + // Number of bits per pixel, used for determining how many pixels can be sent during a transmission of the pixdata buffer + uint8_t native_bits_per_pixel; + + // Comms config pointer -- needs to point to an appropriate comms config if the comms driver requires it. + void *comms_config; +}; diff --git a/quantum/painter/qp_internal_formats.h b/quantum/painter/qp_internal_formats.h new file mode 100644 index 0000000000..a4a86f0345 --- /dev/null +++ b/quantum/painter/qp_internal_formats.h @@ -0,0 +1,49 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#pragma once + +#include "qp_internal.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter pixel formats + +// Datatype containing a pixel's color. The internal member used is dependent on the external context. +typedef union QP_PACKED qp_pixel_t { + uint8_t mono; + uint8_t palette_idx; + + struct QP_PACKED { + uint8_t h; + uint8_t s; + uint8_t v; + } hsv888; + + struct QP_PACKED { + uint8_t r; + uint8_t g; + uint8_t b; + } rgb888; + + uint16_t rgb565; + + uint32_t dummy; +} qp_pixel_t; +_Static_assert(sizeof(qp_pixel_t) == 4, "Invalid size for qp_pixel_t"); + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter image format + +typedef enum qp_image_format_t { + // Pixel formats available in the QGF frame format + GRAYSCALE_1BPP = 0x00, + GRAYSCALE_2BPP = 0x01, + GRAYSCALE_4BPP = 0x02, + GRAYSCALE_8BPP = 0x03, + PALETTE_1BPP = 0x04, + PALETTE_2BPP = 0x05, + PALETTE_4BPP = 0x06, + PALETTE_8BPP = 0x07, +} qp_image_format_t; + +typedef enum painter_compression_t { IMAGE_UNCOMPRESSED, IMAGE_COMPRESSED_RLE } painter_compression_t; diff --git a/quantum/painter/qp_stream.c b/quantum/painter/qp_stream.c new file mode 100644 index 0000000000..f00ae5ed38 --- /dev/null +++ b/quantum/painter/qp_stream.c @@ -0,0 +1,171 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#include "qp_stream.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Stream API + +uint32_t qp_stream_read_impl(void *output_buf, uint32_t member_size, uint32_t num_members, qp_stream_t *stream) { + uint8_t *output_ptr = (uint8_t *)output_buf; + + uint32_t i; + for (i = 0; i < (num_members * member_size); ++i) { + int16_t c = qp_stream_get(stream); + if (c < 0) { + break; + } + + output_ptr[i] = (uint8_t)(c & 0xFF); + } + + return i / member_size; +} + +uint32_t qp_stream_write_impl(const void *input_buf, uint32_t member_size, uint32_t num_members, qp_stream_t *stream) { + uint8_t *input_ptr = (uint8_t *)input_buf; + + uint32_t i; + for (i = 0; i < (num_members * member_size); ++i) { + if (!qp_stream_put(stream, input_ptr[i])) { + break; + } + } + + return i / member_size; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Memory streams + +int16_t mem_get(qp_stream_t *stream) { + qp_memory_stream_t *s = (qp_memory_stream_t *)stream; + if (s->position >= s->length) { + s->is_eof = true; + return STREAM_EOF; + } + return s->buffer[s->position++]; +} + +bool mem_put(qp_stream_t *stream, uint8_t c) { + qp_memory_stream_t *s = (qp_memory_stream_t *)stream; + if (s->position >= s->length) { + s->is_eof = true; + return false; + } + s->buffer[s->position++] = c; + return true; +} + +int mem_seek(qp_stream_t *stream, int32_t offset, int origin) { + qp_memory_stream_t *s = (qp_memory_stream_t *)stream; + + // Handle as per fseek + int32_t position = s->position; + switch (origin) { + case SEEK_SET: + position = offset; + break; + case SEEK_CUR: + position += offset; + break; + case SEEK_END: + position = s->length + offset; + break; + default: + return -1; + } + + // If we're before the start, ignore it. + if (position < 0) { + return -1; + } + + // If we're at the end it's okay, we only care if we're after the end for failure purposes -- as per lseek() + if (position > s->length) { + return -1; + } + + // Update the offset + s->position = position; + + // Successful invocation of fseek() results in clearing of the EOF flag by default, mirror the same functionality + s->is_eof = false; + + return 0; +} + +int32_t mem_tell(qp_stream_t *stream) { + qp_memory_stream_t *s = (qp_memory_stream_t *)stream; + return s->position; +} + +bool mem_is_eof(qp_stream_t *stream) { + qp_memory_stream_t *s = (qp_memory_stream_t *)stream; + return s->is_eof; +} + +qp_memory_stream_t qp_make_memory_stream(void *buffer, int32_t length) { + qp_memory_stream_t stream = { + .base = + { + .get = mem_get, + .put = mem_put, + .seek = mem_seek, + .tell = mem_tell, + .is_eof = mem_is_eof, + }, + .buffer = (uint8_t *)buffer, + .length = length, + .position = 0, + }; + return stream; +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// FILE streams + +#ifdef QP_STREAM_HAS_FILE_IO + +int16_t file_get(qp_stream_t *stream) { + qp_file_stream_t *s = (qp_file_stream_t *)stream; + int c = fgetc(s->file); + if (c < 0 || feof(s->file)) return STREAM_EOF; + return (uint16_t)c; +} + +bool file_put(qp_stream_t *stream, uint8_t c) { + qp_file_stream_t *s = (qp_file_stream_t *)stream; + return fputc(c, s->file) == c; +} + +int file_seek(qp_stream_t *stream, int32_t offset, int origin) { + qp_file_stream_t *s = (qp_file_stream_t *)stream; + return fseek(s->file, offset, origin); +} + +int32_t file_tell(qp_stream_t *stream) { + qp_file_stream_t *s = (qp_file_stream_t *)stream; + return (int32_t)ftell(s->file); +} + +bool file_is_eof(qp_stream_t *stream) { + qp_file_stream_t *s = (qp_file_stream_t *)stream; + return (bool)feof(s->file); +} + +qp_file_stream_t qp_make_file_stream(FILE *f) { + qp_file_stream_t stream = { + .base = + { + .get = file_get, + .put = file_put, + .seek = file_seek, + .tell = file_tell, + .is_eof = file_is_eof, + }, + .file = f, + }; + return stream; +} +#endif // QP_STREAM_HAS_FILE_IO diff --git a/quantum/painter/qp_stream.h b/quantum/painter/qp_stream.h new file mode 100644 index 0000000000..878b9bf530 --- /dev/null +++ b/quantum/painter/qp_stream.h @@ -0,0 +1,82 @@ +/* Copyright 2021 Nick Brassel (@tzarc) + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#pragma once + +#include <stdbool.h> +#include <stdint.h> +#include <stdlib.h> +#include <stdio.h> + +#include "qp_internal.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Stream API + +typedef struct qp_stream_t qp_stream_t; + +#define qp_stream_get(stream_ptr) (((qp_stream_t *)(stream_ptr))->get((qp_stream_t *)(stream_ptr))) +#define qp_stream_put(stream_ptr, c) (((qp_stream_t *)(stream_ptr))->put((qp_stream_t *)(stream_ptr), (c))) +#define qp_stream_seek(stream_ptr, offset, origin) (((qp_stream_t *)(stream_ptr))->seek((qp_stream_t *)(stream_ptr), (offset), (origin))) +#define qp_stream_tell(stream_ptr) (((qp_stream_t *)(stream_ptr))->tell((qp_stream_t *)(stream_ptr))) +#define qp_stream_eof(stream_ptr) (((qp_stream_t *)(stream_ptr))->is_eof((qp_stream_t *)(stream_ptr))) +#define qp_stream_setpos(stream_ptr, offset) qp_stream_seek((stream_ptr), (offset), SEEK_SET) +#define qp_stream_getpos(stream_ptr) qp_stream_tell((stream_ptr)) +#define qp_stream_read(output_buf, member_size, num_members, stream_ptr) qp_stream_read_impl((output_buf), (member_size), (num_members), (qp_stream_t *)(stream_ptr)) +#define qp_stream_write(input_buf, member_size, num_members, stream_ptr) qp_stream_write_impl((input_buf), (member_size), (num_members), (qp_stream_t *)(stream_ptr)) + +uint32_t qp_stream_read_impl(void *output_buf, uint32_t member_size, uint32_t num_members, qp_stream_t *stream); +uint32_t qp_stream_write_impl(const void *input_buf, uint32_t member_size, uint32_t num_members, qp_stream_t *stream); + +#define STREAM_EOF ((int16_t)(-1)) + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Stream definition + +struct qp_stream_t { + int16_t (*get)(qp_stream_t *stream); + bool (*put)(qp_stream_t *stream, uint8_t c); + int (*seek)(qp_stream_t *stream, int32_t offset, int origin); + int32_t (*tell)(qp_stream_t *stream); + bool (*is_eof)(qp_stream_t *stream); +}; + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Memory streams + +typedef struct qp_memory_stream_t { + qp_stream_t base; + uint8_t * buffer; + int32_t length; + int32_t position; + bool is_eof; +} qp_memory_stream_t; + +qp_memory_stream_t qp_make_memory_stream(void *buffer, int32_t length); + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// FILE streams + +#ifdef QP_STREAM_HAS_FILE_IO + +typedef struct qp_file_stream_t { + qp_stream_t base; + FILE * file; +} qp_file_stream_t; + +qp_file_stream_t qo_make_file_stream(FILE *f); + +#endif // QP_STREAM_HAS_FILE_IO diff --git a/quantum/painter/rules.mk b/quantum/painter/rules.mk new file mode 100644 index 0000000000..9115d3d406 --- /dev/null +++ b/quantum/painter/rules.mk @@ -0,0 +1,116 @@ +# Quantum Painter Configurables +QUANTUM_PAINTER_DRIVERS ?= +QUANTUM_PAINTER_ANIMATIONS_ENABLE ?= yes + +# The list of permissible drivers that can be listed in QUANTUM_PAINTER_DRIVERS +VALID_QUANTUM_PAINTER_DRIVERS := ili9163_spi ili9341_spi st7789_spi gc9a01_spi ssd1351_spi + +#------------------------------------------------------------------------------- + +OPT_DEFS += -DQUANTUM_PAINTER_ENABLE +COMMON_VPATH += $(QUANTUM_DIR)/painter +SRC += \ + $(QUANTUM_DIR)/utf8.c \ + $(QUANTUM_DIR)/color.c \ + $(QUANTUM_DIR)/painter/qp.c \ + $(QUANTUM_DIR)/painter/qp_stream.c \ + $(QUANTUM_DIR)/painter/qgf.c \ + $(QUANTUM_DIR)/painter/qff.c \ + $(QUANTUM_DIR)/painter/qp_draw_core.c \ + $(QUANTUM_DIR)/painter/qp_draw_codec.c \ + $(QUANTUM_DIR)/painter/qp_draw_circle.c \ + $(QUANTUM_DIR)/painter/qp_draw_ellipse.c \ + $(QUANTUM_DIR)/painter/qp_draw_image.c \ + $(QUANTUM_DIR)/painter/qp_draw_text.c + +# Check if people want animations... enable the defered exec if so. +ifeq ($(strip $(QUANTUM_PAINTER_ANIMATIONS_ENABLE)), yes) + DEFERRED_EXEC_ENABLE := yes + OPT_DEFS += -DQUANTUM_PAINTER_ANIMATIONS_ENABLE +endif + +# Comms flags +QUANTUM_PAINTER_NEEDS_COMMS_SPI ?= no + +# Handler for each driver +define handle_quantum_painter_driver + CURRENT_PAINTER_DRIVER := $1 + + ifeq ($$(filter $$(strip $$(CURRENT_PAINTER_DRIVER)),$$(VALID_QUANTUM_PAINTER_DRIVERS)),) + $$(error "$$(CURRENT_PAINTER_DRIVER)" is not a valid Quantum Painter driver) + + else ifeq ($$(strip $$(CURRENT_PAINTER_DRIVER)),ili9163_spi) + QUANTUM_PAINTER_NEEDS_COMMS_SPI := yes + QUANTUM_PAINTER_NEEDS_COMMS_SPI_DC_RESET := yes + OPT_DEFS += -DQUANTUM_PAINTER_ILI9163_ENABLE -DQUANTUM_PAINTER_ILI9163_SPI_ENABLE + COMMON_VPATH += \ + $(DRIVER_PATH)/painter/tft_panel \ + $(DRIVER_PATH)/painter/ili9xxx + SRC += \ + $(DRIVER_PATH)/painter/tft_panel/qp_tft_panel.c \ + $(DRIVER_PATH)/painter/ili9xxx/qp_ili9163.c \ + + else ifeq ($$(strip $$(CURRENT_PAINTER_DRIVER)),ili9341_spi) + QUANTUM_PAINTER_NEEDS_COMMS_SPI := yes + QUANTUM_PAINTER_NEEDS_COMMS_SPI_DC_RESET := yes + OPT_DEFS += -DQUANTUM_PAINTER_ILI9341_ENABLE -DQUANTUM_PAINTER_ILI9341_SPI_ENABLE + COMMON_VPATH += \ + $(DRIVER_PATH)/painter/tft_panel \ + $(DRIVER_PATH)/painter/ili9xxx + SRC += \ + $(DRIVER_PATH)/painter/tft_panel/qp_tft_panel.c \ + $(DRIVER_PATH)/painter/ili9xxx/qp_ili9341.c \ + + else ifeq ($$(strip $$(CURRENT_PAINTER_DRIVER)),st7789_spi) + QUANTUM_PAINTER_NEEDS_COMMS_SPI := yes + QUANTUM_PAINTER_NEEDS_COMMS_SPI_DC_RESET := yes + OPT_DEFS += -DQUANTUM_PAINTER_ST7789_ENABLE -DQUANTUM_PAINTER_ST7789_SPI_ENABLE + COMMON_VPATH += \ + $(DRIVER_PATH)/painter/tft_panel \ + $(DRIVER_PATH)/painter/st77xx + SRC += \ + $(DRIVER_PATH)/painter/tft_panel/qp_tft_panel.c \ + $(DRIVER_PATH)/painter/st77xx/qp_st7789.c + + else ifeq ($$(strip $$(CURRENT_PAINTER_DRIVER)),gc9a01_spi) + QUANTUM_PAINTER_NEEDS_COMMS_SPI := yes + QUANTUM_PAINTER_NEEDS_COMMS_SPI_DC_RESET := yes + OPT_DEFS += -DQUANTUM_PAINTER_GC9A01_ENABLE -DQUANTUM_PAINTER_GC9A01_SPI_ENABLE + COMMON_VPATH += \ + $(DRIVER_PATH)/painter/tft_panel \ + $(DRIVER_PATH)/painter/gc9a01 + SRC += \ + $(DRIVER_PATH)/painter/tft_panel/qp_tft_panel.c \ + $(DRIVER_PATH)/painter/gc9a01/qp_gc9a01.c + + else ifeq ($$(strip $$(CURRENT_PAINTER_DRIVER)),ssd1351_spi) + QUANTUM_PAINTER_NEEDS_COMMS_SPI := yes + QUANTUM_PAINTER_NEEDS_COMMS_SPI_DC_RESET := yes + OPT_DEFS += -DQUANTUM_PAINTER_SSD1351_ENABLE -DQUANTUM_PAINTER_SSD1351_SPI_ENABLE + COMMON_VPATH += \ + $(DRIVER_PATH)/painter/tft_panel \ + $(DRIVER_PATH)/painter/ssd1351 + SRC += \ + $(DRIVER_PATH)/painter/tft_panel/qp_tft_panel.c \ + $(DRIVER_PATH)/painter/ssd1351/qp_ssd1351.c + + endif +endef + +# Iterate through the listed drivers for the build, including what's necessary +$(foreach qp_driver,$(QUANTUM_PAINTER_DRIVERS),$(eval $(call handle_quantum_painter_driver,$(qp_driver)))) + +# If SPI comms is needed, set up the required files +ifeq ($(strip $(QUANTUM_PAINTER_NEEDS_COMMS_SPI)), yes) + OPT_DEFS += -DQUANTUM_PAINTER_SPI_ENABLE + QUANTUM_LIB_SRC += spi_master.c + VPATH += $(DRIVER_PATH)/painter/comms + SRC += \ + $(QUANTUM_DIR)/painter/qp_comms.c \ + $(DRIVER_PATH)/painter/comms/qp_comms_spi.c + + ifeq ($(strip $(QUANTUM_PAINTER_NEEDS_COMMS_SPI_DC_RESET)), yes) + OPT_DEFS += -DQUANTUM_PAINTER_SPI_DC_RESET_ENABLE + endif +endif + |