commit 6c005f9ddfea7da1e4f537e27e076e58e406f549
author Sam Lantinga <slouken@libsdl.org> Sat Oct 01 13:07:36 2016 -0700
committer Sam Lantinga <slouken@libsdl.org> Sat Oct 01 13:07:36 2016 -0700
tree 72ee205e62a44b72117ac268bf8b50869615f7d4
parent 10896fc45ccab73433be42831a8175317d083799

Fixed bug 3422 - OpenGL ES 1.1 renderer: SDL_UpdateTexture breaks later function calls (missing glDisable)

ny00

Using the OpenGL ES 1.1 renderer, after updating a texture with SDL_UpdateTexture (or SDL_UnlockTexture), a following call to SDL_RenderFillRect draws a rectangle with the wrong color (which appears to be the same as the texture's top-left pixel).

Comparing SDL_render_gles.c:GLES_UpdateTexture to SDL_render_gl.c:GL_UpdateTexture, a missing call to glDisable appears to be the cause. After adding it back, the bug is resolved.

src/render/opengles/SDL_render_gles.c

diff --git a/src/render/opengles/SDL_render_gles.c b/src/render/opengles/SDL_render_gles.c
index 56cbad6..f0856d7 100644
--- a/src/render/opengles/SDL_render_gles.c
+++ b/src/render/opengles/SDL_render_gles.c
@@ -590,6 +590,7 @@
                     data->format,
                     data->formattype,
                     src);
+    renderdata->glDisable(data->type);
     SDL_free(blob);
 
     if (renderdata->glGetError() != GL_NO_ERROR) {