mesa: implement glGetShaderPrecisionFormat()
Drivers should override the default range/precision info as needed.
No drivers do this yet.
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index 958ea10..fe370fa 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -526,6 +526,16 @@
prog->MaxNativeTemps = 0;
prog->MaxNativeAddressRegs = 0;
prog->MaxNativeParameters = 0;
+
+ /* Set GLSL datatype range/precision info assuming IEEE float values.
+ * Drivers should override these defaults as needed.
+ */
+ prog->MediumFloat.RangeMin = 127;
+ prog->MediumFloat.RangeMax = 127;
+ prog->MediumFloat.Precision = 23;
+ prog->LowFloat = prog->HighFloat = prog->MediumFloat;
+ /* assume ints are stored as floats for now */
+ prog->LowInt = prog->MediumInt = prog->HighInt = prog->MediumFloat;
}