diff options
| author | Felix Kuehling <fxkuehl@gmx.de> | 2005-01-23 01:42:01 +0000 |
|---|---|---|
| committer | Felix Kuehling <fxkuehl@gmx.de> | 2005-01-23 01:42:01 +0000 |
| commit | 3b50f004333a922a259a4f733395c27002965ded (patch) | |
| tree | 2ad70683c6932caca4218fb48f095147a52f1052 /src/mesa/drivers/dri/savage | |
| parent | 36a35c5614336bffdac4827c1e04bcaa8ab2fa27 (diff) | |
My last attempt to fix polygon offsets with the reversed viewport depth
range used by the savage driver by negating ctx->MRD broke polygon
offsets with software fallbacks. This one adds a REVERSE_DEPTH parameter
to t_dd_tritmp.h (defaults to 0) that allows reversing polygon offsets
for hardware rendering but not for software fallbacks. For software
fallbacks depth values are reversed after polygon offsets have been
applied by the depth span functions.
Diffstat (limited to 'src/mesa/drivers/dri/savage')
| -rw-r--r-- | src/mesa/drivers/dri/savage/savage_xmesa.c | 3 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/savage/savagetris.c | 1 |
2 files changed, 1 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/savage/savage_xmesa.c b/src/mesa/drivers/dri/savage/savage_xmesa.c index 9814288933..c2eb8d10b1 100644 --- a/src/mesa/drivers/dri/savage/savage_xmesa.c +++ b/src/mesa/drivers/dri/savage/savage_xmesa.c @@ -394,9 +394,6 @@ savageCreateContext( const __GLcontextModes *mesaVis, ctx->Const.MaxLineWidthAA = 3.0; ctx->Const.LineWidthGranularity = 1.0; #endif - /* This is needed to get polygon offset right with reversed depth range - * (see savageCalcViewport). Not sure if it has any other side effects. */ - ctx->MRD *= -1.0; /* Dri stuff */ diff --git a/src/mesa/drivers/dri/savage/savagetris.c b/src/mesa/drivers/dri/savage/savagetris.c index fdd0f12724..f5faa3fe56 100644 --- a/src/mesa/drivers/dri/savage/savagetris.c +++ b/src/mesa/drivers/dri/savage/savagetris.c @@ -388,6 +388,7 @@ static struct { #define TAB rast_tab #define DEPTH_SCALE imesa->depth_scale +#define REVERSE_DEPTH 1 #define UNFILLED_TRI unfilled_tri #define UNFILLED_QUAD unfilled_quad #define VERT_X(_v) _v->v.x |