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Diffstat (limited to 'drivers/painter/generic/qp_surface_internal.h')
| -rw-r--r-- | drivers/painter/generic/qp_surface_internal.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/drivers/painter/generic/qp_surface_internal.h b/drivers/painter/generic/qp_surface_internal.h new file mode 100644 index 0000000000..71f82e924d --- /dev/null +++ b/drivers/painter/generic/qp_surface_internal.h @@ -0,0 +1,119 @@ +// Copyright 2022 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later +#pragma once + +#ifdef QUANTUM_PAINTER_SURFACE_ENABLE + +# include "qp_surface.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Internal declarations + +// Surface vtable +typedef struct surface_painter_driver_vtable_t { + painter_driver_vtable_t base; // must be first, so it can be cast to/from the painter_driver_vtable_t* type + + bool (*target_pixdata_transfer)(painter_driver_t *surface_driver, painter_driver_t *target_driver, uint16_t x, uint16_t y, bool entire_surface); +} surface_painter_driver_vtable_t; + +typedef struct surface_dirty_data_t { + bool is_dirty; + uint16_t l; + uint16_t t; + uint16_t r; + uint16_t b; +} surface_dirty_data_t; + +typedef struct surface_viewport_data_t { + // Manually manage the viewport for streaming pixel data to the display + uint16_t viewport_l; + uint16_t viewport_t; + uint16_t viewport_r; + uint16_t viewport_b; + + // Current write location to the display when streaming pixel data + uint16_t pixdata_x; + uint16_t pixdata_y; +} surface_viewport_data_t; + +// Surface struct +typedef struct surface_painter_device_t { + painter_driver_t base; // must be first, so it can be cast to/from the painter_device_t* type + + // The target buffer + union { + void * buffer; + uint8_t * u8buffer; + uint16_t *u16buffer; + }; + + // Manually manage the viewport for streaming pixel data to the display + surface_viewport_data_t viewport; + + // Maintain a dirty region so we can stream only what we need + surface_dirty_data_t dirty; +} surface_painter_device_t; + +/** + * Factory method for an RGB565 surface (aka framebuffer). Accepts an external device table. + * + * @param device_table[in] the table of devices to use for instantiation + * @param device_table_len[in] the length of the table of devices + * @param panel_width[in] the width of the display panel + * @param panel_height[in] the height of the display panel + * @param buffer[in] pointer to a preallocated uint8_t buffer of size `SURFACE_REQUIRED_BUFFER_BYTE_SIZE(panel_width, panel_height, 16)` + * @return the device handle used with all drawing routines in Quantum Painter + */ +painter_device_t qp_make_rgb565_surface_advanced(surface_painter_device_t *device_table, size_t device_table_len, uint16_t panel_width, uint16_t panel_height, void *buffer); + +/** + * Factory method for a 1bpp monochrome surface (aka framebuffer). + * + * @param device_table[in] the table of devices to use for instantiation + * @param device_table_len[in] the length of the table of devices + * @param panel_width[in] the width of the display panel + * @param panel_height[in] the height of the display panel + * @param buffer[in] pointer to a preallocated uint8_t buffer of size `SURFACE_REQUIRED_BUFFER_BYTE_SIZE(panel_width, panel_height, 16)` + * @return the device handle used with all drawing routines in Quantum Painter + */ +painter_device_t qp_make_mono1bpp_surface_advanced(surface_painter_device_t *device_table, size_t device_table_len, uint16_t panel_width, uint16_t panel_height, void *buffer); + +// Driver storage +extern surface_painter_device_t surface_drivers[SURFACE_NUM_DEVICES]; + +// Surface common APIs +bool qp_surface_init(painter_device_t device, painter_rotation_t rotation); +bool qp_surface_power(painter_device_t device, bool power_on); +bool qp_surface_clear(painter_device_t device); +bool qp_surface_flush(painter_device_t device); +bool qp_surface_viewport(painter_device_t device, uint16_t left, uint16_t top, uint16_t right, uint16_t bottom); +void qp_surface_increment_pixdata_location(surface_viewport_data_t *viewport); +void qp_surface_update_dirty(surface_dirty_data_t *dirty, uint16_t x, uint16_t y); + +#endif // QUANTUM_PAINTER_SURFACE_ENABLE + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Factory functions for creating a handle to a surface + +#define SURFACE_FACTORY_FUNCTION_IMPL(function_name, vtable, bpp) \ + painter_device_t(function_name##_advanced)(surface_painter_device_t * device_table, size_t device_table_len, uint16_t panel_width, uint16_t panel_height, void *buffer) { \ + for (uint32_t i = 0; i < device_table_len; ++i) { \ + surface_painter_device_t *driver = &device_table[i]; \ + if (!driver->base.driver_vtable) { \ + driver->base.driver_vtable = (painter_driver_vtable_t *)&(vtable); \ + driver->base.native_bits_per_pixel = (bpp); \ + driver->base.comms_vtable = &dummy_comms_vtable; \ + driver->base.panel_width = panel_width; \ + driver->base.panel_height = panel_height; \ + driver->base.rotation = QP_ROTATION_0; \ + driver->base.offset_x = 0; \ + driver->base.offset_y = 0; \ + driver->buffer = buffer; \ + return (painter_device_t)driver; \ + } \ + } \ + return NULL; \ + } \ + painter_device_t(function_name)(uint16_t panel_width, uint16_t panel_height, void *buffer) { \ + return (function_name##_advanced)(surface_drivers, SURFACE_NUM_DEVICES, panel_width, panel_height, buffer); \ + } |