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getteximage: avoid to lookup textures with id 0

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This fixes the following assertion when the key is 0.

main/hash.c:181: _mesa_HashLookup_unlocked: Assertion `key' failed.

Fixes: 633c959fae ("getteximage: Return correct error value when texure object is not found")
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Samuel Pitoiset
2017-03-01 22:54:09 +01:00
parent 5ac6ab701f
commit 5ae54c0cf7
1 changed files with 7 additions and 3 deletions
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10
src/mesa/main/texgetimage.c
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@@ -1458,7 +1458,9 @@ _mesa_GetTextureSubImage(GLuint texture, GLint level,
{
GET_CURRENT_CONTEXT(ctx);
static const char *caller = "glGetTextureSubImage";
struct gl_texture_object *texObj =
struct gl_texture_object *texObj = NULL;
if (texture > 0)
_mesa_lookup_texture(ctx, texture);
if (!texObj) {
@@ -1774,9 +1776,11 @@ _mesa_GetCompressedTextureSubImage(GLuint texture, GLint level,
{
GET_CURRENT_CONTEXT(ctx);
static const char *caller = "glGetCompressedTextureImage";
struct gl_texture_object *texObj;
struct gl_texture_object *texObj = NULL;
if (texture > 0)
texObj = _mesa_lookup_texture(ctx, texture);
texObj = _mesa_lookup_texture(ctx, texture);
if (!texObj) {
_mesa_error(ctx, GL_INVALID_VALUE, "%s(texture)", caller);
return;