| /* |
| * Copyright (c) 2018 Jan Van Winkel <jan.van_winkel@dxplore.eu> |
| * Copyright (c) 2023 Nordic Semiconductor |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <stdint.h> |
| #include <stddef.h> |
| #include <stdbool.h> |
| #include <SDL.h> |
| #include "nsi_tracing.h" |
| |
| int sdl_display_init_bottom(uint16_t height, uint16_t width, |
| void **window, void **renderer, void **texture) |
| { |
| *window = SDL_CreateWindow("Zephyr Display", SDL_WINDOWPOS_UNDEFINED, |
| SDL_WINDOWPOS_UNDEFINED, width, |
| height, SDL_WINDOW_SHOWN); |
| if (*window == NULL) { |
| nsi_print_warning("Failed to create SDL window: %s", SDL_GetError()); |
| return -1; |
| } |
| |
| *renderer = SDL_CreateRenderer(*window, -1, SDL_RENDERER_ACCELERATED); |
| if (*renderer == NULL) { |
| nsi_print_warning("Failed to create SDL renderer: %s", |
| SDL_GetError()); |
| return -1; |
| } |
| |
| *texture = SDL_CreateTexture(*renderer, SDL_PIXELFORMAT_ARGB8888, |
| SDL_TEXTUREACCESS_STATIC, width, height); |
| if (*texture == NULL) { |
| nsi_print_warning("Failed to create SDL texture: %s", SDL_GetError()); |
| return -1; |
| } |
| |
| SDL_SetRenderDrawColor(*renderer, 0, 0, 0, 0xFF); |
| SDL_RenderClear(*renderer); |
| SDL_RenderPresent(*renderer); |
| |
| return 0; |
| } |
| |
| void sdl_display_write_bottom(const uint16_t height, const uint16_t width, |
| const uint16_t x, const uint16_t y, |
| void *renderer, void *texture, |
| uint8_t *buf, bool display_on) |
| { |
| SDL_Rect rect; |
| |
| rect.x = x; |
| rect.y = y; |
| rect.w = width; |
| rect.h = height; |
| |
| SDL_UpdateTexture(texture, &rect, buf, 4 * rect.w); |
| |
| if (display_on) { |
| SDL_RenderClear(renderer); |
| SDL_RenderCopy(renderer, texture, NULL, NULL); |
| SDL_RenderPresent(renderer); |
| } |
| } |
| |
| int sdl_display_read_bottom(const uint16_t height, const uint16_t width, |
| const uint16_t x, const uint16_t y, |
| void *renderer, void *buf, uint16_t pitch) |
| { |
| SDL_Rect rect; |
| |
| rect.x = x; |
| rect.y = y; |
| rect.w = width; |
| rect.h = height; |
| |
| return SDL_RenderReadPixels(renderer, &rect, 0, buf, pitch * 4U); |
| } |
| |
| void sdl_display_blanking_off_bottom(void *renderer, void *texture) |
| { |
| SDL_RenderClear(renderer); |
| SDL_RenderCopy(renderer, texture, NULL, NULL); |
| SDL_RenderPresent(renderer); |
| } |
| |
| void sdl_display_blanking_on_bottom(void *renderer) |
| { |
| SDL_RenderClear(renderer); |
| SDL_RenderPresent(renderer); |
| } |
| |
| void sdl_display_cleanup_bottom(void **window, void **renderer, void **texture) |
| { |
| if (*texture != NULL) { |
| SDL_DestroyTexture(*texture); |
| *texture = NULL; |
| } |
| |
| if (*renderer != NULL) { |
| SDL_DestroyRenderer(*renderer); |
| *renderer = NULL; |
| } |
| |
| if (*window != NULL) { |
| SDL_DestroyWindow(*window); |
| *window = NULL; |
| } |
| } |