mirrors/SDL
1
0
Fork 0
mirror of https://github.com/libsdl-org/SDL.git synced 2025-09-27 13:38:29 +00:00
Code Issues Packages Projects Releases Wiki Activity

Fixed bug 3347 - OpenGL ES renderer doesn't flip projection matrix for target textures

Browse Source 
Simon Hug

When updating the viewport in GLES_UpdateViewport, the OpenGL ES renderer doesn't flip the projection matrix for target textures. The lines, rectangles and textures (if drawn with glDrawArrays) are upside down when drawing to target textures.
This commit is contained in:
Sam Lantinga
2016-10-01 11:40:57 -07:00
parent 061cc5e75f
commit 89c868f4f8
1 changed files with 15 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
src/render/opengles/SDL_render_gles.c
View File

@@ -676,13 +676,22 @@ GLES_UpdateViewport(SDL_Renderer * renderer)
renderer->viewport.w, renderer->viewport.h);
}
data->glMatrixMode(GL_PROJECTION);
data->glLoadIdentity();
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);
if (renderer->target) {
data->glOrthof((GLfloat) 0,
(GLfloat) renderer->viewport.w,
(GLfloat) 0,
(GLfloat) renderer->viewport.h,
0.0, 1.0);
} else {
data->glOrthof((GLfloat) 0,
(GLfloat) renderer->viewport.w,
(GLfloat) renderer->viewport.h,
(GLfloat) 0,
0.0, 1.0);
}
}
return 0;
}