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[Renderers/SDL3] Add image rendering and scissor support to SDL3 renderer (#246)

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tomat 2025-02-12 21:02:06 +00:00 • committed by GitHub
parent eeb4520f48
commit bc2548e3ec
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5 changed files with 46 additions and 6 deletions
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4
renderers/SDL3/README
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@ -1,4 +0,0 @@
Please note, the SDL3 renderer is not 100% feature complete. It is currently missing:
- Images
- Scroll / Scissor handling

29
renderers/SDL3/clay_renderer_SDL3.c
View file

@ -2,6 +2,7 @@
#include <SDL3/SDL_main.h>
#include <SDL3/SDL.h>
#include <SDL3_ttf/SDL_ttf.h>
#include <SDL3_image/SDL_image.h>
typedef struct {
SDL_Renderer *renderer;
@ -140,12 +141,14 @@ static void SDL_Clay_RenderArc(Clay_SDL3RendererData *rendererData, const SDL_FP
}
}
SDL_Rect currentClippingRectangle;
static void SDL_Clay_RenderClayCommands(Clay_SDL3RendererData *rendererData, Clay_RenderCommandArray *rcommands)
{
for (size_t i = 0; i < rcommands->length; i++) {
Clay_RenderCommand *rcmd = Clay_RenderCommandArray_Get(rcommands, i);
const Clay_BoundingBox bounding_box = rcmd->boundingBox;
const SDL_FRect rect = { bounding_box.x, bounding_box.y, bounding_box.width, bounding_box.height };
const SDL_FRect rect = { (int)bounding_box.x, (int)bounding_box.y, (int)bounding_box.width, (int)bounding_box.height };
switch (rcmd->commandType) {
case CLAY_RENDER_COMMAND_TYPE_RECTANGLE: {
@ -231,6 +234,30 @@ static void SDL_Clay_RenderClayCommands(Clay_SDL3RendererData *rendererData, Cla
}
} break;
case CLAY_RENDER_COMMAND_TYPE_SCISSOR_START: {
Clay_BoundingBox boundingBox = rcmd->boundingBox;
currentClippingRectangle = (SDL_Rect) {
.x = boundingBox.x,
.y = boundingBox.y,
.w = boundingBox.width,
.h = boundingBox.height,
};
SDL_SetRenderClipRect(rendererData->renderer, &currentClippingRectangle);
break;
}
case CLAY_RENDER_COMMAND_TYPE_SCISSOR_END: {
SDL_SetRenderClipRect(rendererData->renderer, NULL);
break;
}
case CLAY_RENDER_COMMAND_TYPE_IMAGE: {
SDL_Surface *image = (SDL_Surface *)rcmd->renderData.image.imageData;
SDL_Texture *texture = SDL_CreateTextureFromSurface(rendererData->renderer, image);
const SDL_FRect dest = { rect.x, rect.y, rect.w, rect.h };
SDL_RenderTexture(rendererData->renderer, texture, NULL, &dest);
SDL_DestroyTexture(texture);
break;
}
default:
SDL_Log("Unknown render command type: %d", rcmd->commandType);
}