According to the OpenGL ES 3.2 spec's description of GenerateMipmap:
"An INVALID_OPERATION error is generated if the levelbase array was not
specified with an unsized internal format from table 8.3 or a sized
internal format that is both color-renderable and texture-filterable
according to table 8.10."
Similar text exists in the ES 3.0 specification as well.
Our existing rules are pretty close, but miss a few things. The
OpenGL specification actually doesn't have any text about internal
format checking - our existing code comes from a Khronos bug report.
The ES 3.x spec provides a clearer description.
Fixes dEQP-GLES3.functional.negative_api.texture.generatemipmap and
dEQP-GLES2.functional.negative_api.texture.generatemipmap_zero_level
_array_compressed.
Signed-off-by: Kenneth Graunke <kenn...@whitecape.org>
---
src/mesa/main/genmipmap.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/src/mesa/main/genmipmap.c b/src/mesa/main/genmipmap.c
index 6eacd42..1a6ae9a 100644
--- a/src/mesa/main/genmipmap.c
+++ b/src/mesa/main/genmipmap.c
@@ -79,6 +79,20 @@ bool
_mesa_is_valid_generate_texture_mipmap_internalformat(struct gl_context *ctx,
GLenum internalformat)
{
+ if (_mesa_is_gles3(ctx)) {
+ /* From the ES 3.2 specification's description of GenerateMipmap():
+ * "An INVALID_OPERATION error is generated if the levelbase array was
+ * not specified with an unsized internal format from table 8.3 or a
+ * sized internal format that is both color-renderable and
+ * texture-filterable according to table 8.10."
+ */
+ return internalformat == GL_RGBA || internalformat == GL_RGB ||
+ internalformat == GL_LUMINANCE_ALPHA ||
+ internalformat == GL_LUMINANCE || internalformat == GL_ALPHA ||
+ (_mesa_is_es3_color_renderable(internalformat) &&
+ _mesa_is_es3_texture_filterable(internalformat));
+ }
+
return (!_mesa_is_enum_format_integer(internalformat) &&
!_mesa_is_depthstencil_format(internalformat) &&
!_mesa_is_astc_format(internalformat) &&
--
2.7.3
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/mesa-dev
