From 582bd3466514b9fe24f18d99af2945f02709aacd Mon Sep 17 00:00:00 2001 From: Maciej Cencora Date: Sun, 12 Jul 2009 15:09:15 +0200 Subject: [PATCH] r300: always assume all components are read by fragment program MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Components of input attributes that are used by fragment program aren't part of vertex program key, and that may lead to situations when vertex program writes only TEX1.xy and fragment program reads TEX1.xyz, resulting in rendering errors. Reported-by: Nicolai Hähnle --- src/mesa/drivers/dri/r300/r300_vertprog.c | 54 +++-------------------- 1 file changed, 5 insertions(+), 49 deletions(-) diff --git a/src/mesa/drivers/dri/r300/r300_vertprog.c b/src/mesa/drivers/dri/r300/r300_vertprog.c index c0b116156ab..de32013032f 100644 --- a/src/mesa/drivers/dri/r300/r300_vertprog.c +++ b/src/mesa/drivers/dri/r300/r300_vertprog.c @@ -1494,46 +1494,6 @@ static void addArtificialOutputs(GLcontext *ctx, struct gl_program *prog) #undef ADD_OUTPUT -static GLuint getUsedComponents(const GLuint swizzle) -{ - GLuint ret; - - ret = 0; - - /* need to mask out ZERO, ONE and NIL swizzles */ - if (GET_SWZ(swizzle, SWIZZLE_X) <= SWIZZLE_W) - ret |= 1 << (GET_SWZ(swizzle, SWIZZLE_X)); - if (GET_SWZ(swizzle, SWIZZLE_Y) <= SWIZZLE_W) - ret |= 1 << (GET_SWZ(swizzle, SWIZZLE_Y)); - if (GET_SWZ(swizzle, SWIZZLE_Z) <= SWIZZLE_W) - ret |= 1 << (GET_SWZ(swizzle, SWIZZLE_Z)); - if (GET_SWZ(swizzle, SWIZZLE_W) <= SWIZZLE_W) - ret |= 1 << (GET_SWZ(swizzle, SWIZZLE_W)); - - return ret; -} - -static GLuint trackUsedComponents(const struct gl_program *prog, const GLuint attrib) -{ - struct prog_instruction *inst; - int tmp, i; - GLuint ret; - - inst = prog->Instructions; - ret = 0; - while (inst->Opcode != OPCODE_END) { - tmp = _mesa_num_inst_src_regs(inst->Opcode); - for (i = 0; i < tmp; ++i) { - if (inst->SrcReg[i].File == PROGRAM_INPUT && inst->SrcReg[i].Index == attrib) { - ret |= getUsedComponents(inst->SrcReg[i].Swizzle); - } - } - ++inst; - } - - return ret; -} - static void nqssadceInit(struct nqssadce_state* s) { r300ContextPtr r300 = R300_CONTEXT(s->Ctx); @@ -1541,18 +1501,14 @@ static void nqssadceInit(struct nqssadce_state* s) fp_reads = r300->selected_fp->Base->InputsRead; { - GLuint tmp; - if (fp_reads & FRAG_BIT_COL0) { - tmp = trackUsedComponents(r300->selected_fp->Base, FRAG_ATTRIB_COL0); - s->Outputs[VERT_RESULT_COL0].Sourced = tmp; - s->Outputs[VERT_RESULT_BFC0].Sourced = tmp; + s->Outputs[VERT_RESULT_COL0].Sourced = WRITEMASK_XYZW; + s->Outputs[VERT_RESULT_BFC0].Sourced = WRITEMASK_XYZW; } if (fp_reads & FRAG_BIT_COL1) { - tmp = trackUsedComponents(r300->selected_fp->Base, FRAG_ATTRIB_COL1); - s->Outputs[VERT_RESULT_COL1].Sourced = tmp; - s->Outputs[VERT_RESULT_BFC1].Sourced = tmp; + s->Outputs[VERT_RESULT_COL1].Sourced = WRITEMASK_XYZW; + s->Outputs[VERT_RESULT_BFC1].Sourced = WRITEMASK_XYZW; } } @@ -1560,7 +1516,7 @@ static void nqssadceInit(struct nqssadce_state* s) int i; for (i = 0; i < 8; ++i) { if (fp_reads & FRAG_BIT_TEX(i)) { - s->Outputs[VERT_RESULT_TEX0 + i].Sourced = trackUsedComponents(r300->selected_fp->Base, FRAG_ATTRIB_TEX0 + i); + s->Outputs[VERT_RESULT_TEX0 + i].Sourced = WRITEMASK_XYZW; } } } -- 2.30.2