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r300: Implement ARB_shadow_ambient; add STATE_SHADOW_AMBIENT

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This commit is contained in:
Nicolai Haehnle
2008-07-27 21:31:49 +02:00
parent e88be7d375
commit c117d0efd2
5 changed files with 86 additions and 26 deletions
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1
src/mesa/drivers/dri/r300/r300_context.c
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@@ -101,6 +101,7 @@ const struct dri_extension card_extensions[] = {
{"GL_ARB_multitexture", NULL},
{"GL_ARB_point_parameters", GL_ARB_point_parameters_functions},
{"GL_ARB_shadow", NULL},
{"GL_ARB_shadow_ambient", NULL},
{"GL_ARB_texture_border_clamp", NULL},
{"GL_ARB_texture_compression", GL_ARB_texture_compression_functions},
{"GL_ARB_texture_cube_map", NULL},

35
src/mesa/drivers/dri/r300/r300_fragprog.c
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@@ -58,6 +58,20 @@ static void reset_srcreg(struct prog_src_register* reg)
reg->Swizzle = SWIZZLE_NOOP;
}
static struct prog_src_register shadow_ambient(struct gl_program *program, int tmu)
{
gl_state_index fail_value_tokens[STATE_LENGTH] = {
STATE_INTERNAL, STATE_SHADOW_AMBIENT, 0, 0, 0
};
struct prog_src_register reg = { 0, };
fail_value_tokens[2] = tmu;
reg.File = PROGRAM_STATE_VAR;
reg.Index = _mesa_add_state_reference(program->Parameters, fail_value_tokens);
reg.Swizzle = SWIZZLE_WWWW;
return reg;
}
/**
* Transform TEX, TXP, TXB, and KIL instructions in the following way:
* - premultiply texture coordinates for RECT
@@ -92,8 +106,12 @@ static GLboolean transform_TEX(
tgt->Opcode = OPCODE_MOV;
tgt->DstReg = inst.DstReg;
if (comparefunc == GL_ALWAYS) {
tgt->SrcReg[0].File = PROGRAM_BUILTIN;
tgt->SrcReg[0].Swizzle = comparefunc == GL_ALWAYS ? SWIZZLE_1111 : SWIZZLE_0000;
tgt->SrcReg[0].Swizzle = SWIZZLE_1111;
} else {
tgt->SrcReg[0] = shadow_ambient(t->Program, inst.TexSrcUnit);
}
return GL_TRUE;
}
@@ -153,6 +171,7 @@ static GLboolean transform_TEX(
GLuint comparefunc = GL_NEVER + compiler->fp->state.unit[inst.TexSrcUnit].texture_compare_func;
GLuint depthmode = compiler->fp->state.unit[inst.TexSrcUnit].depth_texture_mode;
int rcptemp = radeonFindFreeTemporary(t);
int pass, fail;
tgt = radeonAppendInstructions(t->Program, 3);
@@ -190,16 +209,18 @@ static GLboolean transform_TEX(
tgt[2].DstReg = orig_inst->DstReg;
tgt[2].SrcReg[0].File = PROGRAM_TEMPORARY;
tgt[2].SrcReg[0].Index = tgt[1].DstReg.Index;
tgt[2].SrcReg[1].File = PROGRAM_BUILTIN;
tgt[2].SrcReg[2].File = PROGRAM_BUILTIN;
if (comparefunc == GL_LESS || comparefunc == GL_GREATER) {
tgt[2].SrcReg[1].Swizzle = SWIZZLE_1111;
tgt[2].SrcReg[2].Swizzle = SWIZZLE_0000;
pass = 1;
fail = 2;
} else {
tgt[2].SrcReg[1].Swizzle = SWIZZLE_0000;
tgt[2].SrcReg[2].Swizzle = SWIZZLE_1111;
pass = 2;
fail = 1;
}
tgt[2].SrcReg[pass].File = PROGRAM_BUILTIN;
tgt[2].SrcReg[pass].Swizzle = SWIZZLE_1111;
tgt[2].SrcReg[fail] = shadow_ambient(t->Program, inst.TexSrcUnit);
} else if (destredirect) {
tgt = radeonAppendInstructions(t->Program, 1);

39
src/mesa/drivers/dri/r300/r500_fragprog.c
View File

@@ -31,6 +31,20 @@
#include "radeon_program_alu.h"
static struct prog_src_register shadow_ambient(struct gl_program *program, int tmu)
{
gl_state_index fail_value_tokens[STATE_LENGTH] = {
STATE_INTERNAL, STATE_SHADOW_AMBIENT, 0, 0, 0
};
struct prog_src_register reg = { 0, };
fail_value_tokens[2] = tmu;
reg.File = PROGRAM_STATE_VAR;
reg.Index = _mesa_add_state_reference(program->Parameters, fail_value_tokens);
reg.Swizzle = SWIZZLE_WWWW;
return reg;
}
/**
* Transform TEX, TXP, TXB, and KIL instructions in the following way:
* - premultiply texture coordinates for RECT
@@ -63,11 +77,13 @@ static GLboolean transform_TEX(
tgt = radeonAppendInstructions(t->Program, 1);
tgt->Opcode = OPCODE_MOV;
tgt->DstReg.File = inst.DstReg.File;
tgt->DstReg.Index = inst.DstReg.Index;
tgt->DstReg.WriteMask = inst.DstReg.WriteMask;
tgt->DstReg = inst.DstReg;
if (comparefunc == GL_ALWAYS) {
tgt->SrcReg[0].File = PROGRAM_BUILTIN;
tgt->SrcReg[0].Swizzle = comparefunc == GL_ALWAYS ? SWIZZLE_1111 : SWIZZLE_0000;
tgt->SrcReg[0].Swizzle = SWIZZLE_1111;
} else {
tgt->SrcReg[0] = shadow_ambient(t->Program, inst.TexSrcUnit);
}
return GL_TRUE;
}
@@ -91,6 +107,7 @@ static GLboolean transform_TEX(
GLuint comparefunc = GL_NEVER + compiler->fp->state.unit[inst.TexSrcUnit].texture_compare_func;
GLuint depthmode = compiler->fp->state.unit[inst.TexSrcUnit].depth_texture_mode;
int rcptemp = radeonFindFreeTemporary(t);
int pass, fail;
tgt = radeonAppendInstructions(t->Program, 3);
@@ -128,16 +145,18 @@ static GLboolean transform_TEX(
tgt[2].DstReg = orig_inst->DstReg;
tgt[2].SrcReg[0].File = PROGRAM_TEMPORARY;
tgt[2].SrcReg[0].Index = tgt[1].DstReg.Index;
tgt[2].SrcReg[1].File = PROGRAM_BUILTIN;
tgt[2].SrcReg[2].File = PROGRAM_BUILTIN;
if (comparefunc == GL_LESS || comparefunc == GL_GREATER) {
tgt[2].SrcReg[1].Swizzle = SWIZZLE_1111;
tgt[2].SrcReg[2].Swizzle = SWIZZLE_0000;
pass = 1;
fail = 2;
} else {
tgt[2].SrcReg[1].Swizzle = SWIZZLE_0000;
tgt[2].SrcReg[2].Swizzle = SWIZZLE_1111;
pass = 2;
fail = 1;
}
tgt[2].SrcReg[pass].File = PROGRAM_BUILTIN;
tgt[2].SrcReg[pass].Swizzle = SWIZZLE_1111;
tgt[2].SrcReg[fail] = shadow_ambient(t->Program, inst.TexSrcUnit);
} else if (destredirect) {
tgt = radeonAppendInstructions(t->Program, 1);

18
src/mesa/shader/prog_statevars.c
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@@ -458,6 +458,20 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
case STATE_PCM_BIAS:
COPY_4V(value, ctx->Pixel.PostColorMatrixBias);
break;
case STATE_SHADOW_AMBIENT:
{
const int unit = (int) state[2];
const struct gl_texture_object *texObj
= ctx->Texture.Unit[unit]._Current;
if (texObj) {
value[0] = texObj->ShadowAmbient;
value[1] = texObj->ShadowAmbient;
value[2] = texObj->ShadowAmbient;
value[3] = texObj->ShadowAmbient;
}
}
return;
default:
/* unknown state indexes are silently ignored
* should be handled by the driver.
@@ -532,6 +546,7 @@ _mesa_program_state_flags(const gl_state_index state[STATE_LENGTH])
case STATE_INTERNAL:
switch (state[1]) {
case STATE_TEXRECT_SCALE:
case STATE_SHADOW_AMBIENT:
return _NEW_TEXTURE;
case STATE_FOG_PARAMS_OPTIMIZED:
return _NEW_FOG;
@@ -711,6 +726,9 @@ append_token(char *dst, gl_state_index k)
case STATE_PCM_BIAS:
append(dst, "PCMbias");
break;
case STATE_SHADOW_AMBIENT:
append(dst, "ShadowAmbient");
break;
default:
;
}

1
src/mesa/shader/prog_statevars.h
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@@ -113,6 +113,7 @@ typedef enum gl_state_index_ {
STATE_PT_BIAS, /**< Pixel transfer RGBA bias */
STATE_PCM_SCALE, /**< Post color matrix RGBA scale */
STATE_PCM_BIAS, /**< Post color matrix RGBA bias */
STATE_SHADOW_AMBIENT, /**< ARB_shadow_ambient fail value; token[2] is texture unit index */
STATE_INTERNAL_DRIVER /* first available state index for drivers (must be last) */
} gl_state_index;