Fixed bug 1622 - SDL_RenderSetViewport with empty SDL_Rect raises wrong error for OpenGL rendering backend
It's now legal to set an empty viewport rect - it will prevent any rendering. Also added an API to query the output size: SDL_GetRendererOutputSize()
This commit is contained in:
parent
b337b40e33
commit
c55f53aa40
8 changed files with 103 additions and 64 deletions
|
@ -623,12 +623,14 @@ GLES_UpdateViewport(SDL_Renderer * renderer)
|
|||
data->glViewport(renderer->viewport.x, renderer->viewport.y,
|
||||
renderer->viewport.w, renderer->viewport.h);
|
||||
|
||||
data->glMatrixMode(GL_PROJECTION);
|
||||
data->glLoadIdentity();
|
||||
data->glOrthof((GLfloat) 0,
|
||||
(GLfloat) renderer->viewport.w,
|
||||
(GLfloat) renderer->viewport.h,
|
||||
(GLfloat) 0, 0.0, 1.0);
|
||||
if (renderer->viewport.w && renderer->viewport.h) {
|
||||
data->glMatrixMode(GL_PROJECTION);
|
||||
data->glLoadIdentity();
|
||||
data->glOrthof((GLfloat) 0,
|
||||
(GLfloat) renderer->viewport.w,
|
||||
(GLfloat) renderer->viewport.h,
|
||||
(GLfloat) 0, 0.0, 1.0);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue