96 lines
2.7 KiB
C++
96 lines
2.7 KiB
C++
#include "../Software.h"
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#include <stddef.h>
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#include <string>
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#include "SDL_error.h"
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#include "SDL_pixels.h"
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#include "SDL_surface.h"
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#include "SDL_video.h"
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#include "../../../Misc.h"
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SDL_Window *window;
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static SDL_Surface *window_sdlsurface;
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static SDL_Surface *framebuffer_sdlsurface;
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bool WindowBackend_Software_CreateWindow(const char *window_title, int screen_width, int screen_height, bool fullscreen)
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{
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window = SDL_CreateWindow(window_title, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, screen_width, screen_height, 0);
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if (window != NULL)
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{
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if (fullscreen)
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if (SDL_SetWindowFullscreen(window, SDL_WINDOW_FULLSCREEN) < 0)
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Backend_PrintError("Couldn't set window to fullscree: %s", SDL_GetError());
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window_sdlsurface = SDL_GetWindowSurface(window);
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if (window_sdlsurface != NULL)
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{
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framebuffer_sdlsurface = SDL_CreateRGBSurfaceWithFormat(0, window_sdlsurface->w, window_sdlsurface->h, 0, SDL_PIXELFORMAT_RGB24);
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if (framebuffer_sdlsurface != NULL)
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{
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Backend_PostWindowCreation();
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return true;
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}
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else
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{
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std::string error_message = std::string("Couldn't create framebuffer surface: ") + SDL_GetError();
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Backend_ShowMessageBox("Fatal error (software rendering backend)", error_message.c_str());
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SDL_DestroyWindow(window);
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}
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}
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else
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{
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std::string error_message = std::string("Couldn't get SDL surface associated with window: ") + SDL_GetError();
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Backend_ShowMessageBox("Fatal error (software rendering backend)", error_message.c_str());
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}
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}
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else
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{
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std::string error_message = std::string("Couldn't create window: ") + SDL_GetError();
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Backend_ShowMessageBox("Fatal error (software rendering backend)", error_message.c_str());
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}
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return false;
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}
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void WindowBackend_Software_DestroyWindow(void)
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{
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SDL_FreeSurface(framebuffer_sdlsurface);
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SDL_DestroyWindow(window);
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}
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unsigned char* WindowBackend_Software_GetFramebuffer(size_t *pitch)
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{
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*pitch = framebuffer_sdlsurface->pitch;
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return (unsigned char*)framebuffer_sdlsurface->pixels;
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}
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void WindowBackend_Software_Display(void)
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{
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if (SDL_BlitSurface(framebuffer_sdlsurface, NULL, window_sdlsurface, NULL) < 0)
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Backend_PrintError("Couldn't blit framebuffer surface to window surface: %s", SDL_GetError());
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if (SDL_UpdateWindowSurface(window) < 0)
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Backend_PrintError("Couldn't copy window surface to the screen: %s", SDL_GetError());
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}
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void WindowBackend_Software_HandleWindowResize(unsigned int width, unsigned int height)
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{
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(void)width;
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(void)height;
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// https://wiki.libsdl.org/SDL_GetWindowSurface
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// We need to fetch a new surface pointer
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window_sdlsurface = SDL_GetWindowSurface(window);
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if (window_sdlsurface == NULL)
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Backend_PrintError("Couldn't get SDL surface associated with window: %s", SDL_GetError());
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}
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