mirrors/SDL
1
0
Fork 0
mirror of https://github.com/libsdl-org/SDL.git synced 2025-09-14 15:28:13 +00:00
Code Issues Packages Projects Releases Wiki Activity

Re-added a simplified version of SDL_SetWindowShape()

Browse Source 
In order to handle mouse click transparency this needs to be implemented inside SDL
This commit is contained in:
Sam Lantinga
2024-02-09 07:09:59 -08:00
parent 1143bdc351
commit f6b92c9b88
33 changed files with 128676 additions and 59 deletions
Download Patch File Download Diff File Expand all files Collapse all files

42
src/render/SDL_render.c
View File

@@ -989,10 +989,14 @@ SDL_Renderer *SDL_CreateRendererWithProperties(SDL_PropertiesID props)
renderer->color_scale = 1.0f;
if (SDL_GetWindowFlags(window) & (SDL_WINDOW_HIDDEN | SDL_WINDOW_MINIMIZED)) {
renderer->hidden = SDL_TRUE;
} else {
renderer->hidden = SDL_FALSE;
if (window) {
if (SDL_GetWindowFlags(window) & SDL_WINDOW_TRANSPARENT) {
renderer->transparent_window = SDL_TRUE;
}
if (SDL_GetWindowFlags(window) & (SDL_WINDOW_HIDDEN | SDL_WINDOW_MINIMIZED)) {
renderer->hidden = SDL_TRUE;
}
}
new_props = SDL_GetRendererProperties(renderer);
@@ -4247,6 +4251,32 @@ SDL_Surface *SDL_RenderReadPixels(SDL_Renderer *renderer, const SDL_Rect *rect)
return renderer->RenderReadPixels(renderer, &real_rect);
}
static void SDL_RenderApplyWindowShape(SDL_Renderer *renderer)
{
SDL_Surface *shape = (SDL_Surface *)SDL_GetProperty(SDL_GetWindowProperties(renderer->window), SDL_PROP_WINDOW_SHAPE_POINTER, NULL);
if (shape != renderer->shape_surface) {
if (renderer->shape_texture) {
SDL_DestroyTexture(renderer->shape_texture);
renderer->shape_texture = NULL;
}
if (shape) {
/* There's nothing we can do if this fails, so just keep on going */
renderer->shape_texture = SDL_CreateTextureFromSurface(renderer, shape);
SDL_SetTextureBlendMode(renderer->shape_texture,
SDL_ComposeCustomBlendMode(
SDL_BLENDFACTOR_ZERO, SDL_BLENDFACTOR_SRC_ALPHA, SDL_BLENDOPERATION_ADD,
SDL_BLENDFACTOR_ZERO, SDL_BLENDFACTOR_SRC_ALPHA, SDL_BLENDOPERATION_ADD));
}
renderer->shape_surface = shape;
}
if (renderer->shape_texture) {
SDL_RenderTexture(renderer, renderer->shape_texture, NULL, NULL);
}
}
static void SDL_SimulateRenderVSync(SDL_Renderer *renderer)
{
Uint64 now, elapsed;
@@ -4285,6 +4315,10 @@ int SDL_RenderPresent(SDL_Renderer *renderer)
SDL_RenderLogicalPresentation(renderer);
}
if (renderer->transparent_window) {
SDL_RenderApplyWindowShape(renderer);
}
FlushRenderCommands(renderer); /* time to send everything to the GPU! */
#if DONT_DRAW_WHILE_HIDDEN