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Better fix for bug 2207 - SDL_RenderSetViewport behavior is different…

…/incorrect on OpenGL renderer vs DirectX renderer

At least, it works better here on my Mac. :)
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slouken committed Nov 16, 2013
1 parent 44959a2 commit 8093cfd8ce93ad873d0c546e575caa976b7a6992
Showing with 11 additions and 3 deletions.
  1. +11 −3 src/render/opengl/SDL_render_gl.c
@@ -919,13 +919,21 @@ GL_UpdateViewport(SDL_Renderer * renderer)
return 0;
}

data->glViewport(renderer->viewport.x, renderer->viewport.y,
renderer->viewport.w, renderer->viewport.h);
if (renderer->target) {
data->glViewport(renderer->viewport.x, renderer->viewport.y,
renderer->viewport.w, renderer->viewport.h);
} else {
int w, h;

SDL_GetRendererOutputSize(renderer, &w, &h);
data->glViewport(renderer->viewport.x, (h - renderer->viewport.y - renderer->viewport.h),
renderer->viewport.w, renderer->viewport.h);
}

data->glMatrixMode(GL_PROJECTION);
data->glLoadIdentity();
if (renderer->viewport.w && renderer->viewport.h) {
if (!renderer->target) {
if (renderer->target) {
data->glOrtho((GLdouble) 0,
(GLdouble) renderer->viewport.w,
(GLdouble) 0,

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