+ *comps = 3;
+ return;
+ case MESA_FORMAT_SRGBA8:
+ case MESA_FORMAT_SARGB8:
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 4;
+ return;
+ case MESA_FORMAT_SL8:
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 1;
+ return;
+ case MESA_FORMAT_SLA8:
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 2;
+ return;
+#endif
+
+#if FEATURE_texture_fxt1
+ case MESA_FORMAT_RGB_FXT1:
+ case MESA_FORMAT_RGBA_FXT1:
+#endif
+#if FEATURE_texture_s3tc
+ case MESA_FORMAT_RGB_DXT1:
+ case MESA_FORMAT_RGBA_DXT1:
+ case MESA_FORMAT_RGBA_DXT3:
+ case MESA_FORMAT_RGBA_DXT5:
+#if FEATURE_EXT_texture_sRGB
+ case MESA_FORMAT_SRGB_DXT1:
+ case MESA_FORMAT_SRGBA_DXT1:
+ case MESA_FORMAT_SRGBA_DXT3:
+ case MESA_FORMAT_SRGBA_DXT5:
+#endif
+#endif
+ /* XXX generate error instead? */
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 0;
+ return;
+
+ case MESA_FORMAT_RGBA_FLOAT32:
+ *datatype = GL_FLOAT;
+ *comps = 4;
+ return;
+ case MESA_FORMAT_RGBA_FLOAT16:
+ *datatype = GL_HALF_FLOAT_ARB;
+ *comps = 4;
+ return;
+ case MESA_FORMAT_RGB_FLOAT32:
+ *datatype = GL_FLOAT;
+ *comps = 3;
+ return;
+ case MESA_FORMAT_RGB_FLOAT16:
+ *datatype = GL_HALF_FLOAT_ARB;
+ *comps = 3;
+ return;
+ case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32:
+ *datatype = GL_FLOAT;
+ *comps = 2;
+ return;
+ case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16:
+ *datatype = GL_HALF_FLOAT_ARB;
+ *comps = 2;
+ return;
+ case MESA_FORMAT_ALPHA_FLOAT32:
+ case MESA_FORMAT_LUMINANCE_FLOAT32:
+ case MESA_FORMAT_INTENSITY_FLOAT32:
+ *datatype = GL_FLOAT;
+ *comps = 1;
+ return;
+ case MESA_FORMAT_ALPHA_FLOAT16:
+ case MESA_FORMAT_LUMINANCE_FLOAT16:
+ case MESA_FORMAT_INTENSITY_FLOAT16:
+ *datatype = GL_HALF_FLOAT_ARB;
+ *comps = 1;
+ return;
+
+ case MESA_FORMAT_RGBA_INT8:
+ *datatype = GL_BYTE;
+ *comps = 4;
+ return;
+ case MESA_FORMAT_RGBA_INT16:
+ *datatype = GL_SHORT;
+ *comps = 4;
+ return;
+ case MESA_FORMAT_RGBA_INT32:
+ *datatype = GL_INT;
+ *comps = 4;
+ return;
+
+ /**
+ * \name Non-normalized unsigned integer formats.
+ */
+ case MESA_FORMAT_RGBA_UINT8:
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 4;
+ return;
+ case MESA_FORMAT_RGBA_UINT16:
+ *datatype = GL_UNSIGNED_SHORT;
+ *comps = 4;
+ return;
+ case MESA_FORMAT_RGBA_UINT32:
+ *datatype = GL_UNSIGNED_INT;
+ *comps = 4;
+ return;
+
+ case MESA_FORMAT_COUNT:
+ assert(0);
+ return;
+
+ case MESA_FORMAT_NONE:
+ /* For debug builds, warn if any formats are not handled */
+#ifdef DEBUG
+ default:
+#endif
+ _mesa_problem(NULL, "bad format %s in _mesa_format_to_type_and_comps",
+ _mesa_get_format_name(format));
+ *datatype = 0;
+ *comps = 1;