2010/2/12 Ian Romanick <i...@freedesktop.org>:
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> Kristian Høgsberg wrote:
>> diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c
>> index 0e6f69f..475aeab 100644
>> --- a/src/mesa/main/fbobject.c
>> +++ b/src/mesa/main/fbobject.c
>> @@ -1008,6 +1008,30 @@ renderbuffer_storage(GLenum target, GLenum 
>> internalFormat,
>>      */
>>  }
>>
>> +#if FEATURE_OES_EGL_image
>> +void GLAPIENTRY
>> +_mesa_EGLImageTargetRenderbufferStorageOES (GLenum target, GLeglImageOES 
>> image)
>> +{
>> +   GET_CURRENT_CONTEXT(ctx);
>> +   ASSERT_OUTSIDE_BEGIN_END(ctx);
>> +   struct gl_renderbuffer *rb;
>> +
>> +   if (target != GL_RENDERBUFFER_EXT) {
>
> New uses of these enums should use the undecorated versions.

That means GL_RENDERBUFFER, right?

>> +      _mesa_error(ctx, GL_INVALID_ENUM, 
>> "EGLImageTargetRenderbufferStorageOES");
>> +      return;
>> +   }
>> +
>> +   rb = ctx->CurrentRenderbuffer;
>> +   if (!rb) {
>> +      _mesa_error(ctx, GL_INVALID_OPERATION, 
>> "EGLImageTargetRenderbufferStorageOES");
>> +      return;
>> +   }
>> +
>
> Is there any sort of generic validation of the image that could be done
> here?  I suspect not, but I'd hate to see the same validation code
> duplicated in every driver.  Maybe that would better belong in a utility
> function in src/mesa/drivers/dri/common.  Hmm...

I know what you're saying, but there isn't.  The EGLImage is an EGL
type and in our implementation it's a struct _egl_image,  but we don't
know anything about that here.  However, when the driver looks up the
EGLImage to get the __DRIimage, we do some basic validation in the
lookup function.  When the driver finally gets the __DRIimage in hand,
there isn't a lot of checking to do; it's just a struct intel_region.
I don't worry that this will lead to a lot of code duplication.

>> +   FLUSH_VERTICES(ctx, _NEW_BUFFERS);
>> +
>> +   ctx->Driver.EGLImageTargetRenderbufferStorage(ctx, rb, image);
>> +}
>> +#endif
>>
>>  /**
>>   * Helper function for _mesa_GetRenderbufferParameterivEXT() and
>> diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
>> index da3c6f9..6b15c40 100644
>> --- a/src/mesa/main/teximage.c
>> +++ b/src/mesa/main/teximage.c
>> @@ -2448,6 +2448,47 @@ _mesa_TexImage3DEXT( GLenum target, GLint level, 
>> GLenum internalFormat,
>>  }
>>
>>
>> +#if FEATURE_OES_EGL_image
>> +void GLAPIENTRY
>> +_mesa_EGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image)
>> +{
>> +   GET_CURRENT_CONTEXT(ctx);
>> +   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
>> +   struct gl_texture_object *texObj;
>> +   struct gl_texture_image *texImage;
>> +
>> +   if (target != GL_TEXTURE_2D) {
>> +      _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage1D(target)");
>
> That's probably the wrong error message. :)  Cut-and-paste for the lose.

Oops, fiedx.

>> +      return;
>> +   }
>> +
>> +   if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
>> +      _mesa_update_state(ctx);
>> +
>> +   texObj = _mesa_get_current_tex_object(ctx, target);
>> +   _mesa_lock_texture(ctx, texObj);
>> +
>> +   texImage = _mesa_get_tex_image(ctx, texObj, target, 0);
>> +   if (!texImage) {
>> +      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
>
> That's probably the wrong error message. :)  Cut-and-paste for the lose.

Oops, fiedx.

>> +   } else {
>> +      if (texImage->Data)
>> +      ctx->Driver.FreeTexImageData( ctx, texImage );
>> +
>> +      ASSERT(texImage->Data == NULL);
>> +      //clear_teximage_fields(texImage); /* not really needed, but helpful 
>> */
>> +      ctx->Driver.EGLImageTargetTexture2D(ctx, target,
>> +                                       texObj, texImage, image);
>> +
>> +      /* state update */
>> +      texObj->_Complete = GL_FALSE;
>> +      ctx->NewState |= _NEW_TEXTURE;
>> +   }
>> +   _mesa_unlock_texture(ctx, texObj);
>> +
>> +}
>> +#endif
>> +
>>
>>  void GLAPIENTRY
>>  _mesa_TexSubImage1D( GLenum target, GLint level,
>
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