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Implemented OpenGL ES RenderClear()

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This commit is contained in:
Sam Lantinga 2011-02-17 02:23:48 -08:00
parent 7fda55f8d4
commit ea8037a625
3 changed files with 26 additions and 24 deletions
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17
src/render/opengles/SDL_render_gles.c
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@ -54,6 +54,7 @@ static int GLES_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
static void GLES_UnlockTexture(SDL_Renderer * renderer,
SDL_Texture * texture);
static int GLES_UpdateViewport(SDL_Renderer * renderer);
static int GLES_RenderClear(SDL_Renderer * renderer);
static int GLES_RenderDrawPoints(SDL_Renderer * renderer,
const SDL_Point * points, int count);
static int GLES_RenderDrawLines(SDL_Renderer * renderer,
@ -180,6 +181,7 @@ GLES_CreateRenderer(SDL_Window * window, Uint32 flags)
renderer->LockTexture = GLES_LockTexture;
renderer->UnlockTexture = GLES_UnlockTexture;
renderer->UpdateViewport = GLES_UpdateViewport;
renderer->RenderClear = GLES_RenderClear;
renderer->RenderDrawPoints = GLES_RenderDrawPoints;
renderer->RenderDrawLines = GLES_RenderDrawLines;
renderer->RenderFillRects = GLES_RenderFillRects;
@ -451,6 +453,21 @@ GLES_UpdateViewport(SDL_Renderer * renderer)
return 0;
}
static int
GLES_RenderClear(SDL_Renderer * renderer)
{
GLES_ActivateRenderer(renderer);
glClearColor((GLfloat) renderer->r * inv255f,
(GLfloat) renderer->g * inv255f,
(GLfloat) renderer->b * inv255f,
(GLfloat) renderer->a * inv255f);
glClear(GL_COLOR_BUFFER_BIT);
return 0;
}
static void
GLES_SetBlendMode(GLES_RenderData * data, int blendMode)
{