02d562e9b8
While the driver was already capable of processing `ARGB8888` data, it did not actually show the alpha value in any way. This change adds a checkerboard background that shows transparent regions. Signed-off-by: Martin Stumpf <finomnis@gmail.com>
44 lines
1.8 KiB
C
44 lines
1.8 KiB
C
/*
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* Copyright (c) 2018 Jan Van Winkel <jan.van_winkel@dxplore.eu>
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* Copyright (c) 2023 Nordic Semiconductor
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* "Bottom" of the SDL display driver.
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* When built with the native_simulator this will be built in the runner context,
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* that is, with the host C library, and with the host include paths.
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*/
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#ifndef DRIVERS_DISPLAY_DISPLAY_SDL_BOTTOM_H
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#define DRIVERS_DISPLAY_DISPLAY_SDL_BOTTOM_H
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#include <stdbool.h>
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Note: None of these functions are public interfaces. But internal to the SDL display driver */
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int sdl_display_init_bottom(uint16_t height, uint16_t width, uint16_t zoom_pct,
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bool use_accelerator, void **window, void **renderer, void **mutex,
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void **texture, void **read_texture, void **background_texture,
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uint32_t transparency_grid_color1, uint32_t transparency_grid_color2,
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uint16_t transparency_grid_cell_size);
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void sdl_display_write_bottom(const uint16_t height, const uint16_t width, const uint16_t x,
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const uint16_t y, void *renderer, void *mutex, void *texture,
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void *background_texture, uint8_t *buf, bool display_on,
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bool frame_incomplete);
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int sdl_display_read_bottom(const uint16_t height, const uint16_t width, const uint16_t x,
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const uint16_t y, void *renderer, void *buf, uint16_t pitch,
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void *mutex, void *texture, void *read_texture);
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void sdl_display_blanking_off_bottom(void *renderer, void *texture, void *background_texture);
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void sdl_display_blanking_on_bottom(void *renderer);
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void sdl_display_cleanup_bottom(void **window, void **renderer, void **mutex, void **texture,
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void **read_texture, void **background_texture);
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#ifdef __cplusplus
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}
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#endif
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#endif /* DRIVERS_DISPLAY_DISPLAY_SDL_BOTTOM_H */
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