From 42c560b05d1697e1266c7932d52beee625db8591 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Sat, 10 Aug 2013 10:49:26 -0700
Subject: [PATCH] Check the return value of glGenTextures()

--HG--
extra : rebase_source : e079554f253890d862bfd5d51d7b229e3fcff3d9
---
 src/render/opengl/SDL_render_gl.c       | 4 ++++
 src/render/opengles/SDL_render_gles.c   | 5 +++++
 src/render/opengles2/SDL_render_gles2.c | 7 +++++--
 3 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/render/opengl/SDL_render_gl.c b/src/render/opengl/SDL_render_gl.c
index 0094d84ec..697a974c5 100644
--- a/src/render/opengl/SDL_render_gl.c
+++ b/src/render/opengl/SDL_render_gl.c
@@ -633,6 +633,10 @@ GL_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
 
     GL_CheckError("", renderer);
     renderdata->glGenTextures(1, &data->texture);
+    if (GL_CheckError("glGenTexures()", renderer) < 0) {
+        SDL_free(data);
+        return -1;
+    }
     if ((renderdata->GL_ARB_texture_rectangle_supported)
         /*&& texture->access != SDL_TEXTUREACCESS_TARGET*/){
         data->type = GL_TEXTURE_RECTANGLE_ARB;
diff --git a/src/render/opengles/SDL_render_gles.c b/src/render/opengles/SDL_render_gles.c
index cbbdd0da3..ab0f01d4e 100644
--- a/src/render/opengles/SDL_render_gles.c
+++ b/src/render/opengles/SDL_render_gles.c
@@ -475,6 +475,11 @@ GLES_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
     renderdata->glGetError();
     renderdata->glEnable(GL_TEXTURE_2D);
     renderdata->glGenTextures(1, &data->texture);
+    result = renderdata->glGetError();
+    if (result != GL_NO_ERROR) {
+        SDL_free(data);
+        return GLES_SetError("glGenTextures()", result);
+    }
 
     data->type = GL_TEXTURE_2D;
     /* no NPOV textures allowed in OpenGL ES (yet) */
diff --git a/src/render/opengles2/SDL_render_gles2.c b/src/render/opengles2/SDL_render_gles2.c
index e34cd1b7c..a0ab94365 100644
--- a/src/render/opengles2/SDL_render_gles2.c
+++ b/src/render/opengles2/SDL_render_gles2.c
@@ -418,6 +418,10 @@ GLES2_CreateTexture(SDL_Renderer *renderer, SDL_Texture *texture)
     /* Allocate the texture */
     rdata->glGetError();
     rdata->glGenTextures(1, &tdata->texture);
+    if (rdata->glGetError() != GL_NO_ERROR) {
+        SDL_free(tdata);
+        return SDL_SetError("Texture creation failed in glGenTextures()");
+    }
     rdata->glActiveTexture(GL_TEXTURE0);
     rdata->glBindTexture(tdata->texture_type, tdata->texture);
     rdata->glTexParameteri(tdata->texture_type, GL_TEXTURE_MIN_FILTER, scaleMode);
@@ -425,8 +429,7 @@ GLES2_CreateTexture(SDL_Renderer *renderer, SDL_Texture *texture)
     rdata->glTexParameteri(tdata->texture_type, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
     rdata->glTexParameteri(tdata->texture_type, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
     rdata->glTexImage2D(tdata->texture_type, 0, format, texture->w, texture->h, 0, format, type, NULL);
-    if (rdata->glGetError() != GL_NO_ERROR)
-    {
+    if (rdata->glGetError() != GL_NO_ERROR) {
         rdata->glDeleteTextures(1, &tdata->texture);
         SDL_free(tdata);
         return SDL_SetError("Texture creation failed");