radeon: Implement GL_OES_EGL_image

[mesa.git] / src / mesa / drivers / dri / radeon / radeon_texture.c

diff --git a/src/mesa/drivers/dri/radeon/radeon_texture.c b/src/mesa/drivers/dri/radeon/radeon_texture.c
index 18ccb512d7a776ca6ee3ccd7113c17f266bc75b9..8b1e34fe7669cdb122359654fc1d579e8545225d 100644 (file)
--- a/src/mesa/drivers/dri/radeon/radeon_texture.c
+++ b/src/mesa/drivers/dri/radeon/radeon_texture.c
@@ -1007,3 +1007,67 @@ unsigned radeonIsFormatRenderable(gl_format mesa_format)
                        return 0;
        }
 }
+
+#if FEATURE_OES_EGL_image
+void radeon_image_target_texture_2d(struct gl_context *ctx, GLenum target,
+                                   struct gl_texture_object *texObj,
+                                   struct gl_texture_image *texImage,
+                                   GLeglImageOES image_handle)
+{
+       radeonContextPtr radeon = RADEON_CONTEXT(ctx);
+       radeonTexObj *t = radeon_tex_obj(texObj);
+       radeon_texture_image *radeonImage = get_radeon_texture_image(texImage);
+       __DRIscreen *screen;
+       __DRIimage *image;
+
+       screen = radeon->dri.screen;
+       image = screen->dri2.image->lookupEGLImage(screen, image_handle,
+                                                  screen->loaderPrivate);
+       if (image == NULL)
+               return;
+
+       radeonFreeTexImageData(ctx, texImage);
+
+       texImage->Width = image->width;
+       texImage->Height = image->height;
+       texImage->Depth = 1;
+       texImage->_BaseFormat = GL_RGBA;
+       texImage->TexFormat = image->format;
+       texImage->RowStride = image->pitch;
+       texImage->InternalFormat = image->internal_format;
+
+       if(t->mt)
+       {
+               radeon_miptree_unreference(&t->mt);
+               t->mt = NULL;
+       }
+
+       /* NOTE: The following is *very* ugly and will probably break. But
+          I don't know how to deal with it, without creating a whole new
+          function like radeon_miptree_from_bo() so I'm going with the
+          easy but error-prone way. */
+
+       radeon_try_alloc_miptree(radeon, t);
+
+       radeonImage->mtface = _mesa_tex_target_to_face(target);
+       radeonImage->mtlevel = 0;
+       radeon_miptree_reference(t->mt, &radeonImage->mt);
+
+       if (t->mt == NULL)
+       {
+               radeon_print(RADEON_TEXTURE, RADEON_VERBOSE,
+                            "%s Failed to allocate miptree.\n", __func__);
+               return;
+       }
+
+       /* Particularly ugly: this is guaranteed to break, if image->bo is
+          not of the required size for a miptree. */
+       radeon_bo_unref(t->mt->bo);
+       radeon_bo_ref(image->bo);
+       t->mt->bo = image->bo;
+
+       if (!radeon_miptree_matches_image(t->mt, &radeonImage->base,
+                                         radeonImage->mtface, 0))
+               fprintf(stderr, "miptree doesn't match image\n");
+}
+#endif