+ if (ctx->Extensions.EXT_texture_integer) {
+ switch (internalFormat) {
+ case GL_RGBA32UI_EXT:
+ case GL_RGB32UI_EXT:
+ case GL_ALPHA32UI_EXT:
+ case GL_INTENSITY32UI_EXT:
+ case GL_LUMINANCE32UI_EXT:
+ case GL_LUMINANCE_ALPHA32UI_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32);
+ break;
+ case GL_RGBA16UI_EXT:
+ case GL_RGB16UI_EXT:
+ case GL_ALPHA16UI_EXT:
+ case GL_INTENSITY16UI_EXT:
+ case GL_LUMINANCE16UI_EXT:
+ case GL_LUMINANCE_ALPHA16UI_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16);
+ break;
+ case GL_RGBA8UI_EXT:
+ case GL_RGB8UI_EXT:
+ case GL_ALPHA8UI_EXT:
+ case GL_INTENSITY8UI_EXT:
+ case GL_LUMINANCE8UI_EXT:
+ case GL_LUMINANCE_ALPHA8UI_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8);
+ break;
+ case GL_RGBA32I_EXT:
+ case GL_RGB32I_EXT:
+ case GL_ALPHA32I_EXT:
+ case GL_INTENSITY32I_EXT:
+ case GL_LUMINANCE32I_EXT:
+ case GL_LUMINANCE_ALPHA32I_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32);
+ break;
+ case GL_RGBA16I_EXT:
+ case GL_RGB16I_EXT:
+ case GL_ALPHA16I_EXT:
+ case GL_INTENSITY16I_EXT:
+ case GL_LUMINANCE16I_EXT:
+ case GL_LUMINANCE_ALPHA16I_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16);
+ break;
+ case GL_RGBA8I_EXT:
+ case GL_RGB8I_EXT:
+ case GL_ALPHA8I_EXT:
+ case GL_INTENSITY8I_EXT:
+ case GL_LUMINANCE8I_EXT:
+ case GL_LUMINANCE_ALPHA8I_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8);
+ break;
+ }
+ }
+
+ if (ctx->Extensions.ARB_texture_rg) {
+ switch (internalFormat) {
+ case GL_R8:
+ case GL_RED:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_R8);
+ break;
+
+ case GL_COMPRESSED_RED:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RED_RGTC1);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_R8);
+ break;
+
+ case GL_R16:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_R16);
+ break;
+
+ case GL_RG:
+ case GL_RG8:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RG88);
+ break;
+
+ case GL_COMPRESSED_RG:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RG88);
+ break;
+
+ case GL_RG16:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RG1616);
+ break;
+
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ARB_texture_rg && ctx->Extensions.ARB_texture_float) {
+ switch (internalFormat) {
+ case GL_R16F:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT16);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
+ break;
+ case GL_R32F:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
+ break;
+ case GL_RG16F:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
+ break;
+ case GL_RG32F:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
+ break;
+
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
+ */
+ if (ctx->API != API_OPENGL) {
+ switch (internalFormat) {
+ case GL_BGRA:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
+ break;
+
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ARB_texture_compression_rgtc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RED_RGTC1:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RED_RGTC1);
+ break;
+ case GL_COMPRESSED_SIGNED_RED_RGTC1:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RED_RGTC1);
+ break;
+ case GL_COMPRESSED_RG_RGTC2:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2);
+ break;
+ case GL_COMPRESSED_SIGNED_RG_RGTC2:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG_RGTC2);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_texture_compression_latc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_L_LATC1);
+ break;
+ case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L_LATC1);
+ break;
+ case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_LA_LATC2);
+ break;
+ case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_LA_LATC2);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ATI_texture_compression_3dc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_LA_LATC2);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+