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authorEric Anholt <eric@anholt.net>2009-08-26 09:51:15 -0700
committerEric Anholt <eric@anholt.net>2009-09-08 14:30:15 -0700
commitb4922b533155cc139ebafb111502bb55d2ad2ccf (patch)
treea784133f9de7e5fccda5305ab926bebc5ffbaf19 /src/mesa/main/attrib.c
parent3e4539a471da48066a83eda8e14301dbc4dbf6db (diff)
mesa: Add support for ARB_depth_clamp.
This currently doesn't include fixing up the cliptests in the assembly paths to support ARB_depth_clamp, so enabling depth_clamp forces the C path.
Diffstat (limited to 'src/mesa/main/attrib.c')
-rw-r--r--src/mesa/main/attrib.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/mesa/main/attrib.c b/src/mesa/main/attrib.c
index ab99ca1c64..0fb8fa3bba 100644
--- a/src/mesa/main/attrib.c
+++ b/src/mesa/main/attrib.c
@@ -74,6 +74,7 @@ struct gl_enable_attrib
GLboolean Convolution2D;
GLboolean Separable2D;
GLboolean CullFace;
+ GLboolean DepthClamp;
GLboolean DepthTest;
GLboolean Dither;
GLboolean Fog;
@@ -265,6 +266,7 @@ _mesa_PushAttrib(GLbitfield mask)
attr->Convolution2D = ctx->Pixel.Convolution2DEnabled;
attr->Separable2D = ctx->Pixel.Separable2DEnabled;
attr->CullFace = ctx->Polygon.CullFlag;
+ attr->DepthClamp = ctx->Transform.DepthClamp;
attr->DepthTest = ctx->Depth.Test;
attr->Dither = ctx->Color.DitherFlag;
attr->Fog = ctx->Fog.Enabled;
@@ -514,6 +516,8 @@ pop_enable_group(GLcontext *ctx, const struct gl_enable_attrib *enable)
enable->ColorTable[COLORTABLE_POSTCOLORMATRIX],
GL_POST_COLOR_MATRIX_COLOR_TABLE);
TEST_AND_UPDATE(ctx->Polygon.CullFlag, enable->CullFace, GL_CULL_FACE);
+ TEST_AND_UPDATE(ctx->Transform.DepthClamp, enable->DepthClamp,
+ GL_DEPTH_CLAMP);
TEST_AND_UPDATE(ctx->Depth.Test, enable->DepthTest, GL_DEPTH_TEST);
TEST_AND_UPDATE(ctx->Color.DitherFlag, enable->Dither, GL_DITHER);
TEST_AND_UPDATE(ctx->Pixel.Convolution1DEnabled, enable->Convolution1D,
@@ -1221,6 +1225,9 @@ _mesa_PopAttrib(void)
if (xform->RescaleNormals != ctx->Transform.RescaleNormals)
_mesa_set_enable(ctx, GL_RESCALE_NORMAL_EXT,
ctx->Transform.RescaleNormals);
+ if (xform->DepthClamp != ctx->Transform.DepthClamp)
+ _mesa_set_enable(ctx, GL_DEPTH_CLAMP,
+ ctx->Transform.DepthClamp);
}
break;
case GL_TEXTURE_BIT: