pandory500/SDL-mirror
2
0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Added function SDL_RenderSetClipRect()

Browse source
This commit is contained in:
Sam Lantinga 2011-02-07 20:06:26 -08:00
parent 42bac7a31e
commit 8253658837
9 changed files with 140 additions and 24 deletions
Download patch file Download diff file Expand all files Collapse all files

18
src/render/opengles/SDL_render_gles.c
View file

@ -56,6 +56,7 @@ static int GLES_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * rect, void **pixels, int *pitch);
static void GLES_UnlockTexture(SDL_Renderer * renderer,
SDL_Texture * texture);
static void GLES_SetClipRect(SDL_Renderer * renderer, const SDL_Rect * rect);
static int GLES_RenderDrawPoints(SDL_Renderer * renderer,
const SDL_Point * points, int count);
static int GLES_RenderDrawLines(SDL_Renderer * renderer,
@ -172,6 +173,7 @@ GLES_CreateRenderer(SDL_Window * window, Uint32 flags)
renderer->UpdateTexture = GLES_UpdateTexture;
renderer->LockTexture = GLES_LockTexture;
renderer->UnlockTexture = GLES_UnlockTexture;
renderer->SetClipRect = GLES_SetClipRect;
renderer->RenderDrawPoints = GLES_RenderDrawPoints;
renderer->RenderDrawLines = GLES_RenderDrawLines;
renderer->RenderFillRects = GLES_RenderFillRects;
@ -443,6 +445,22 @@ GLES_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture)
glDisable(data->type);
}
static void
GLES_SetClipRect(SDL_Renderer * renderer, const SDL_Rect * rect)
{
GL_ActivateRenderer(renderer);
if (rect) {
int w, h;
SDL_GetWindowSize(renderer->window, &w, &h);
glScissor(rect->x, (h-(rect->y+rect->h)), rect->w, rect->h);
glEnable(GL_SCISSOR_TEST);
} else {
glDisable(GL_SCISSOR_TEST);
}
}
static void
GLES_SetBlendMode(GLES_RenderData * data, int blendMode)
{