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authorAlex Deucher <alexdeucher@gmail.com>2009-09-19 14:46:06 -0400
committerAlex Deucher <alexdeucher@gmail.com>2009-09-19 14:48:44 -0400
commit368fb578f86c53d888324f9bb25369216b3187b1 (patch)
tree4660d0d5df78e356827fd3d03b48383387c96bd4 /src/mesa
parent67cad78e08f1a0770c5a7f67ecaf8145b2fdbdc4 (diff)
r600: fix polygon offset
Diffstat (limited to 'src/mesa')
-rw-r--r--src/mesa/drivers/dri/r600/r700_state.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/r600/r700_state.c b/src/mesa/drivers/dri/r600/r700_state.c
index e91aa43118..8477c88c58 100644
--- a/src/mesa/drivers/dri/r600/r700_state.c
+++ b/src/mesa/drivers/dri/r600/r700_state.c
@@ -1130,20 +1130,25 @@ static void r700PolygonOffset(GLcontext * ctx, GLfloat factor, GLfloat units) //
context_t *context = R700_CONTEXT(ctx);
R700_CHIP_CONTEXT *r700 = (R700_CHIP_CONTEXT*)(&context->hw);
GLfloat constant = units;
+ GLchar depth = 0;
+
+ R600_STATECHANGE(context, poly);
switch (ctx->Visual.depthBits) {
case 16:
constant *= 4.0;
+ depth = -16;
break;
case 24:
constant *= 2.0;
+ depth = -24;
break;
}
factor *= 12.0;
-
- R600_STATECHANGE(context, poly);
-
+ SETfield(r700->PA_SU_POLY_OFFSET_DB_FMT_CNTL.u32All, depth,
+ POLY_OFFSET_NEG_NUM_DB_BITS_shift, POLY_OFFSET_NEG_NUM_DB_BITS_mask);
+ //r700->PA_SU_POLY_OFFSET_CLAMP.f32All = constant; //???
r700->PA_SU_POLY_OFFSET_FRONT_SCALE.f32All = factor;
r700->PA_SU_POLY_OFFSET_FRONT_OFFSET.f32All = constant;
r700->PA_SU_POLY_OFFSET_BACK_SCALE.f32All = factor;