/* Copyright (C) 1997-2023 Sam Lantinga This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely. */ #include #include #include #include "SDL.h" #include "SDL_shape.h" #define SHAPED_WINDOW_X 150 #define SHAPED_WINDOW_Y 150 #define SHAPED_WINDOW_DIMENSION 640 typedef struct LoadedPicture { SDL_Surface *surface; SDL_Texture *texture; SDL_WindowShapeMode mode; const char* name; } LoadedPicture; void render(SDL_Renderer *renderer,SDL_Texture *texture,SDL_Rect texture_dimensions) { /* Clear render-target to blue. */ SDL_SetRenderDrawColor(renderer,0x00,0x00,0xff,0xff); SDL_RenderClear(renderer); /* Render the texture. */ SDL_RenderCopy(renderer,texture,&texture_dimensions,&texture_dimensions); SDL_RenderPresent(renderer); } int main(int argc,char** argv) { Uint8 num_pictures; LoadedPicture* pictures; int i, j; SDL_PixelFormat* format = NULL; SDL_Window *window; SDL_Renderer *renderer; SDL_Color black = {0,0,0,0xff}; SDL_Event event; int should_exit = 0; unsigned int current_picture; int button_down; Uint32 pixelFormat = 0; int access = 0; SDL_Rect texture_dimensions; /* Enable standard application logging */ SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO); if(argc < 2) { SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL_Shape requires at least one bitmap file as argument."); exit(-1); } if(SDL_VideoInit(NULL) == -1) { SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Could not initialize SDL video."); exit(-2); } num_pictures = argc - 1; pictures = (LoadedPicture *)SDL_malloc(sizeof(LoadedPicture)*num_pictures); if (!pictures) { SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Could not allocate memory."); exit(1); } for(i=0;iformat; if(SDL_ISPIXELFORMAT_ALPHA(format->format)) { pictures[i].mode.mode = ShapeModeBinarizeAlpha; pictures[i].mode.parameters.binarizationCutoff = 255; } else { pictures[i].mode.mode = ShapeModeColorKey; pictures[i].mode.parameters.colorKey = black; } } window = SDL_CreateShapedWindow("SDL_Shape test", SHAPED_WINDOW_X, SHAPED_WINDOW_Y, SHAPED_WINDOW_DIMENSION,SHAPED_WINDOW_DIMENSION, 0); SDL_SetWindowPosition(window, SHAPED_WINDOW_X, SHAPED_WINDOW_Y); if(window == NULL) { for(i=0;i= num_pictures) current_picture = 0; SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION, "Changing to shaped bmp: %s", pictures[current_picture].name); SDL_QueryTexture(pictures[current_picture].texture,(Uint32 *)&pixelFormat,(int *)&access,&texture_dimensions.w,&texture_dimensions.h); SDL_SetWindowSize(window,texture_dimensions.w,texture_dimensions.h); SDL_SetWindowShape(window,pictures[current_picture].surface,&pictures[current_picture].mode); } if (event.type == SDL_QUIT) { should_exit = 1; break; } } render(renderer,pictures[current_picture].texture,texture_dimensions); SDL_Delay(10); } /* Free the textures. */ for(i=0;i