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 event_pending = 0;
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;i<num_pictures;i++)
pictures[i].surface = NULL;
for(i=0;i<num_pictures;i++) {
pictures[i].surface = SDL_LoadBMP(argv[i+1]);
pictures[i].name = argv[i+1];
if(pictures[i].surface == NULL) {
for(j=0;j<num_pictures;j++)
SDL_FreeSurface(pictures[j].surface);
SDL_free(pictures);
SDL_VideoQuit();
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Could not load surface from named bitmap file: %s", argv[i+1]);
exit(-3);
}
format = pictures[i].surface->format;
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;i++)
SDL_FreeSurface(pictures[i].surface);
SDL_free(pictures);
SDL_VideoQuit();
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Could not create shaped window for SDL_Shape.");
exit(-4);
}
renderer = SDL_CreateRenderer(window,-1,0);
if (!renderer) {
SDL_DestroyWindow(window);
for(i=0;i<num_pictures;i++)
SDL_FreeSurface(pictures[i].surface);
SDL_free(pictures);
SDL_VideoQuit();
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Could not create rendering context for SDL_Shape window.");
exit(-5);
}
for(i=0;i<num_pictures;i++)
pictures[i].texture = NULL;
for(i=0;i<num_pictures;i++) {
pictures[i].texture = SDL_CreateTextureFromSurface(renderer,pictures[i].surface);
if(pictures[i].texture == NULL) {
for(i=0;i<num_pictures;i++)
if(pictures[i].texture != NULL)
SDL_DestroyTexture(pictures[i].texture);
for(i=0;i<num_pictures;i++)
SDL_FreeSurface(pictures[i].surface);
SDL_free(pictures);
SDL_DestroyRenderer(renderer);
SDL_DestroyWindow(window);
SDL_VideoQuit();
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Could not create texture for SDL_shape.");
exit(-6);
}
}
event_pending = 0;
should_exit = 0;
event_pending = SDL_PollEvent(&event);
current_picture = 0;
button_down = 0;
texture_dimensions.h = 0;
texture_dimensions.w = 0;
texture_dimensions.x = 0;
texture_dimensions.y = 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);
while(should_exit == 0) {
event_pending = SDL_PollEvent(&event);
if(event_pending == 1) {
if(event.type == SDL_KEYDOWN) {
button_down = 1;
if(event.key.keysym.sym == SDLK_ESCAPE) {
should_exit = 1;
break;
}
}
if(button_down && event.type == SDL_KEYUP) {
button_down = 0;
current_picture += 1;
if(current_picture >= 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;
event_pending = 0;
}
render(renderer,pictures[current_picture].texture,texture_dimensions);
SDL_Delay(10);
}
/* Free the textures. */
for(i=0;i<num_pictures;i++)
SDL_DestroyTexture(pictures[i].texture);
SDL_DestroyRenderer(renderer);
/* Destroy the window. */
SDL_DestroyWindow(window);
/* Free the original surfaces backing the textures. */
for(i=0;i<num_pictures;i++)
SDL_FreeSurface(pictures[i].surface);
SDL_free(pictures);
/* Call SDL_VideoQuit() before quitting. */
SDL_VideoQuit();
return 0;
}
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 event_pending = 0;
int should_exit = 0;
unsigned int current_picture;
int button_down;
Uint32 pixelFormat = 0;
int access = 0;
SDL_Rect texture_dimensions;;
if(argc < 2) {
printf("SDL_Shape requires at least one bitmap file as argument.\n");
exit(-1);
}
if(SDL_VideoInit(NULL) == -1) {
printf("Could not initialize SDL video.\n");
exit(-2);
}
num_pictures = argc - 1;
pictures = (LoadedPicture *)SDL_malloc(sizeof(LoadedPicture)*num_pictures);
for(i=0;i<num_pictures;i++)
pictures[i].surface = NULL;
for(i=0;i<num_pictures;i++) {
pictures[i].surface = SDL_LoadBMP(argv[i+1]);
if(pictures[i].surface == NULL) {
j = 0;
for(j=0;j<num_pictures;j++)
if(pictures[j].surface != NULL)
SDL_FreeSurface(pictures[j].surface);
SDL_free(pictures);
SDL_VideoQuit();
printf("Could not load surface from named bitmap file.\n");
exit(-3);
}
format = pictures[i].surface->format;
if(format->Amask != 0) {
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,SDL_WINDOW_RESIZABLE);
if(window == NULL) {
for(i=0;i<num_pictures;i++)
SDL_FreeSurface(pictures[i].surface);
SDL_free(pictures);
SDL_VideoQuit();
printf("Could not create shaped window for SDL_Shape.\n");
exit(-4);
}
renderer = SDL_CreateRenderer(window,-1,0);
if (!renderer) {
SDL_DestroyWindow(window);
for(i=0;i<num_pictures;i++)
SDL_FreeSurface(pictures[i].surface);
SDL_free(pictures);
SDL_VideoQuit();
printf("Could not create rendering context for SDL_Shape window.\n");
exit(-5);
}
for(i=0;i<num_pictures;i++)
pictures[i].texture = NULL;
for(i=0;i<num_pictures;i++) {
pictures[i].texture = SDL_CreateTextureFromSurface(renderer,pictures[i].surface);
if(pictures[i].texture == NULL) {
j = 0;
for(j=0;j<num_pictures;i++)
if(pictures[i].texture != NULL)
SDL_DestroyTexture(pictures[i].texture);
for(i=0;i<num_pictures;i++)
SDL_FreeSurface(pictures[i].surface);
SDL_free(pictures);
SDL_DestroyRenderer(renderer);
SDL_DestroyWindow(window);
SDL_VideoQuit();
printf("Could not create texture for SDL_shape.\n");
exit(-6);
}
}
event_pending = 0;
should_exit = 0;
event_pending = SDL_PollEvent(&event);
current_picture = 0;
button_down = 0;
texture_dimensions.h = 0;
texture_dimensions.w = 0;
texture_dimensions.x = 0;
texture_dimensions.y = 0;
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);
next_time = SDL_GetTicks() + TICK_INTERVAL;
while(should_exit == 0) {
event_pending = SDL_PollEvent(&event);
if(event_pending == 1) {
if(event.type == SDL_KEYDOWN) {
button_down = 1;
if(event.key.keysym.sym == SDLK_ESCAPE)
should_exit = 1;
}
if(button_down && event.type == SDL_KEYUP) {
button_down = 0;
current_picture += 1;
if(current_picture >= num_pictures)
current_picture = 0;
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;
event_pending = 0;
}
render(renderer,pictures[current_picture].texture,texture_dimensions);
SDL_Delay(time_left());
next_time += TICK_INTERVAL;
}
//Free the textures.
for(i=0;i<num_pictures;i++)
SDL_DestroyTexture(pictures[i].texture);
SDL_DestroyRenderer(renderer);
//Destroy the window.
SDL_DestroyWindow(window);
//Free the original surfaces backing the textures.
for(i=0;i<num_pictures;i++)
SDL_FreeSurface(pictures[i].surface);
SDL_free(pictures);
//Call SDL_VideoQuit() before quitting.
SDL_VideoQuit();
return 0;
}
