Mesa (7.9): i915: Set correct values for range/ precision of fragment shader types
Ian Romanick
idr at kemper.freedesktop.org
Mon Feb 28 22:27:52 UTC 2011
Module: Mesa
Branch: 7.9
Commit: bcfa054b29c889300445dd9903d90dc84b60a384
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=bcfa054b29c889300445dd9903d90dc84b60a384
Author: Ian Romanick <ian.d.romanick at intel.com>
Date: Thu Jan 20 12:07:51 2011 -0800
i915: Set correct values for range/precision of fragment shader types
(cherry picked from commit 790ff232e2607a83e6207d06900a5e3de613d161)
---
src/mesa/drivers/dri/i915/i915_context.c | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/src/mesa/drivers/dri/i915/i915_context.c b/src/mesa/drivers/dri/i915/i915_context.c
index 450e66e..7ebbccd 100644
--- a/src/mesa/drivers/dri/i915/i915_context.c
+++ b/src/mesa/drivers/dri/i915/i915_context.c
@@ -172,6 +172,20 @@ i915CreateContext(int api,
MIN2(ctx->Const.FragmentProgram.MaxNativeParameters,
ctx->Const.FragmentProgram.MaxEnvParams);
+ /* i915 stores all values in single-precision floats. Values aren't set
+ * for other program targets because software is used for those targets.
+ */
+ ctx->FragmentProgram.MediumFloat.RangeMin = 127;
+ ctx->FragmentProgram.MediumFloat.RangeMax = 127;
+ ctx->FragmentProgram.MediumFloat.Precision = 23;
+ ctx->FragmentProgram.LowFloat = ctx->FragmentProgram.HighFloat =
+ ctx->FragmentProgram.MediumFloat;
+ ctx->FragmentProgram.MediumInt.RangeMin = 24;
+ ctx->FragmentProgram.MediumInt.RangeMax = 24;
+ ctx->FragmentProgram.MediumInt.Precision = 0;
+ ctx->FragmentProgram.LowInt = ctx->FragmentProgram.HighInt =
+ ctx->FragmentProgram.MediumInt;
+
ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
/* FINISHME: Are there other options that should be enabled for software
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