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Write back gl_FragDepth to span->array->z.

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This commit is contained in:
Michal Krol 2006-11-01 19:02:27 +00:00
parent 9669804fe4
commit 7d08e3a117
1 changed files with 10 additions and 1 deletions
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11
src/mesa/swrast/s_arbshader.c
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@ -1,6 +1,6 @@
/*
* Mesa 3-D graphics library
* Version: 6.5
* Version: 6.6
*
* Copyright (C) 2006 Brian Paul All Rights Reserved.
*
@ -106,6 +106,15 @@ _swrast_exec_arbshader(GLcontext *ctx, SWspan *span)
(**pro).UpdateFixedVarying(pro, SLANG_FRAGMENT_FIXED_FRAGCOLOR,
vec, 0, 4 * sizeof(GLfloat), GL_FALSE);
COPY_4V(span->array->color.sz4.rgba[i], vec);
(**pro).UpdateFixedVarying(pro, SLANG_FRAGMENT_FIXED_FRAGDEPTH, vec, 0,
sizeof (GLfloat), GL_FALSE);
if (vec[0] <= 0.0f)
span->array->z[i] = 0;
else if (vec[0] >= 1.0f)
span->array->z[i] = ctx->DrawBuffer->_DepthMax;
else
span->array->z[i] = IROUND(vec[0] * ctx->DrawBuffer->_DepthMaxF);
}
}
}