summaryrefslogtreecommitdiff
path: root/src/mesa/swrast
diff options
context:
space:
mode:
authorBrian <brian@yutani.localnet.net>2007-05-02 18:45:44 -0600
committerBrian <brian@yutani.localnet.net>2007-05-02 18:45:44 -0600
commit60d136f63c5a5a18b12952ec8e8532cbce086a4d (patch)
treef9b031bc2d54d7d13c61d5a5c91cc6fec2502aa6 /src/mesa/swrast
parent62da6a1b3e341e53981e2817595e0eea107fe6cb (diff)
changes to get DDX/DDY working again
Diffstat (limited to 'src/mesa/swrast')
-rw-r--r--src/mesa/swrast/s_fragprog.c4
-rw-r--r--src/mesa/swrast/s_span.c4
2 files changed, 8 insertions, 0 deletions
diff --git a/src/mesa/swrast/s_fragprog.c b/src/mesa/swrast/s_fragprog.c
index 09493873aa..b1501221ca 100644
--- a/src/mesa/swrast/s_fragprog.c
+++ b/src/mesa/swrast/s_fragprog.c
@@ -113,6 +113,10 @@ init_machine(GLcontext *ctx, struct gl_program_machine *machine,
/* Setup pointer to input attributes */
machine->Attribs = span->array->attribs;
+ machine->DerivX = (GLfloat (*)[4]) span->attrStepX;
+ machine->DerivY = (GLfloat (*)[4]) span->attrStepY;
+ machine->NumDeriv = FRAG_ATTRIB_MAX;
+
if (ctx->Shader.CurrentProgram) {
/* Store front/back facing value in register FOGC.Y */
machine->Attribs[FRAG_ATTRIB_FOGC][col][1] = (GLfloat) ctx->_Facing;
diff --git a/src/mesa/swrast/s_span.c b/src/mesa/swrast/s_span.c
index 0b17791567..097d2c7b51 100644
--- a/src/mesa/swrast/s_span.c
+++ b/src/mesa/swrast/s_span.c
@@ -1357,7 +1357,11 @@ shade_texture_span(GLcontext *ctx, SWspan *span)
if ((inputsRead >= FRAG_BIT_VAR0) && (span->interpMask & SPAN_VARYING))
interpolate_varying(ctx, span);
+#if 0
if (inputsRead & FRAG_BIT_WPOS)
+#else
+ /* XXX always interpolate wpos so that DDX/DDY work */
+#endif
interpolate_wpos(ctx, span);
/* Run fragment program/shader now */