/*
* Mesa 3-D graphics library
* Version: 3.3
*
* Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*
* Original Mesa / 3Dfx device driver (C) 1999 David Bucciarelli, by the
* terms stated above.
*
* Thank you for your contribution, David!
*
* Please make note of the above copyright/license statement. If you
* contributed code or bug fixes to this code under the previous (GNU
* Library) license and object to the new license, your code will be
* removed at your request. Please see the Mesa docs/COPYRIGHT file
* for more information.
*
* Additional Mesa/3Dfx driver developers:
* Daryll Strauss <daryll@precisioninsight.com>
* Keith Whitwell <keith@precisioninsight.com>
*
* See fxapi.h for more revision/author details.
*/
/* fxsetup.c - 3Dfx VooDoo rendering mode setup functions */
#ifdef HAVE_CONFIG_H
#include "conf.h"
#endif
#if defined(FX)
#include "fxdrv.h"
#include "enums.h"
#include "tnl/t_context.h"
static void
fxTexValidate(GLcontext * ctx, struct gl_texture_object *tObj)
{
tfxTexInfo *ti = fxTMGetTexInfo(tObj);
GLint minl, maxl;
if (MESA_VERBOSE & VERBOSE_DRIVER) {
fprintf(stderr, "fxmesa: fxTexValidate(...) Start\n");
}
if (ti->validated) {
if (MESA_VERBOSE & VERBOSE_DRIVER) {
fprintf(stderr,
"fxmesa: fxTexValidate(...) End (validated=GL_TRUE)\n");
}
return;
}
ti->tObj = tObj;
minl = ti->minLevel = tObj->BaseLevel;
maxl = ti->maxLevel = MIN2(tObj->MaxLevel, tObj->Image[0]->MaxLog2);
fxTexGetInfo(tObj->Image[minl]->Width, tObj->Image[minl]->Height,
&(FX_largeLodLog2(ti->info)), &(FX_aspectRatioLog2(ti->info)),
&(ti->sScale), &(ti->tScale),
&(ti->int_sScale), &(ti->int_tScale), NULL, NULL);
if ((tObj->MinFilter != GL_NEAREST) && (tObj->MinFilter != GL_LINEAR))
fxTexGetInfo(tObj->Image[maxl]->Width, tObj->Image[maxl]->Height,
&(FX_smallLodLog2(ti->info)), NULL,
NULL, NULL, NULL, NULL, NULL, NULL);
else
FX_smallLodLog2(ti->info) = FX_largeLodLog2(ti->info);
fxTexGetFormat(tObj->Image[minl]->TexFormat->BaseFormat, &(ti->info.format),
&(ti->baseLevelInternalFormat));
switch (tObj->WrapS) {
case GL_CLAMP_TO_EDGE:
/* What's this really mean compared to GL_CLAMP? */
case GL_CLAMP:
ti->sClamp = 1;
break;
case GL_REPEAT:
ti->sClamp = 0;
break;
default:
; /* silence compiler warning */
}
switch (tObj->WrapT) {
case GL_CLAMP_TO_EDGE:
/* What's this really mean compared to GL_CLAMP? */
case GL_CLAMP:
ti->tClamp = 1;
break;
case GL_REPEAT:
ti->tClamp = 0;
break;
default:
; /* silence compiler warning */
}
ti->validated = GL_TRUE;
ti->info.data = NULL;
if (MESA_VERBOSE & VERBOSE_DRIVER) {
fprintf(stderr, "fxmesa: fxTexValidate(...) End\n");
}
}
static void
fxPrintUnitsMode(const char *msg, GLuint mode)
{
fprintf(stderr,
"%s: (0x%x) %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
msg,
mode,
(mode & FX_UM_E0_REPLACE) ? "E0_REPLACE, " : "",
(mode & FX_UM_E0_MODULATE) ? "E0_MODULATE, " : "",
(mode & FX_UM_E0_DECAL) ? "E0_DECAL, " : "",
(mode & FX_UM_E0_BLEND) ? "E0_BLEND, " : "",
(mode & FX_UM_E1_REPLACE) ? "E1_REPLACE, " : "",
(mode & FX_UM_E1_MODULATE) ? "E1_MODULATE, " : "",
(mode & FX_UM_E1_DECAL) ? "E1_DECAL, " : "",
(mode & FX_UM_E1_BLEND) ? "E1_BLEND, " : "",
(mode & FX_UM_E0_ALPHA) ? "E0_ALPHA, " : "",
(mode & FX_UM_E0_LUMINANCE) ? "E0_LUMINANCE, " : "",
(mode & FX_UM_E0_LUMINANCE_ALPHA) ? "E0_LUMINANCE_ALPHA, " : "",
(mode & FX_UM_E0_INTENSITY) ? "E0_INTENSITY, " : "",
(mode & FX_UM_E0_RGB) ? "E0_RGB, " : "",
(mode & FX_UM_E0_RGBA) ? "E0_RGBA, " : "",
(mode & FX_UM_E1_ALPHA) ? "E1_ALPHA, " : "",
(mode & FX_UM_E1_LUMINANCE) ? "E1_LUMINANCE, " : "",
(mode & FX_UM_E1_LUMINANCE_ALPHA) ? "E1_LUMINANCE_ALPHA, " : "",
(mode & FX_UM_E1_INTENSITY) ? "E1_INTENSITY, " : "",
(mode & FX_UM_E1_RGB) ? "E1_RGB, " : "",
(mode & FX_UM_E1_RGBA) ? "E1_RGBA, " : "",
(mode & FX_UM_COLOR_ITERATED) ? "COLOR_ITERATED, " : "",
(mode & FX_UM_COLOR_CONSTANT) ? "COLOR_CONSTANT, " : "",
(mode & FX_UM_ALPHA_ITERATED) ? "ALPHA_ITERATED, " : "",
(mode & FX_UM_ALPHA_CONSTANT) ? "ALPHA_CONSTANT, " : "");
}
static GLuint
fxGetTexSetConfiguration(GLcontext * ctx,
struct gl_texture_object *tObj0,
struct gl_texture_object *tObj1)
{
GLuint unitsmode = 0;
GLuint envmode = 0;
GLuint ifmt = 0;
if ((ctx->Light.ShadeModel == GL_SMOOTH) || 1 ||
(ctx->Point.SmoothFlag) ||
(ctx->Line.SmoothFlag) ||
(ctx->Polygon.SmoothFlag)) unitsmode |= FX_UM_ALPHA_ITERATED;
else
unitsmode |= FX_UM_ALPHA_CONSTANT;
if (ctx->Light.ShadeModel == GL_SMOOTH || 1)
unitsmode |= FX_UM_COLOR_ITERATED;
else
unitsmode |= FX_UM_COLOR_CONSTANT;
/*
OpenGL Feeds Texture 0 into Texture 1
Glide Feeds Texture 1 into Texture 0
*/
if (tObj0) {
tfxTexInfo *ti0 = fxTMGetTexInfo(tObj0);
switch (ti0->baseLevelInternalFormat) {
case GL_ALPHA:
ifmt |= FX_UM_E0_ALPHA;
break;
case GL_LUMINANCE:
ifmt |= FX_UM_E0_LUMINANCE;
break;
case GL_LUMINANCE_ALPHA:
ifmt |= FX_UM_E0_LUMINANCE_ALPHA;
break;
case GL_INTENSITY:
ifmt |= FX_UM_E0_INTENSITY;
break;
case GL_RGB:
ifmt |= FX_UM_E0_RGB;
break;
case GL_RGBA:
ifmt |= FX_UM_E0_RGBA;
break;
}
switch (ctx->Texture.Unit[0].EnvMode) {
case GL_DECAL:
envmode |= FX_UM_E0_DECAL;
break;
case GL_MODULATE:
envmode |= FX_UM_E0_MODULATE;
break;
case GL_REPLACE:
envmode |= FX_UM_E0_REPLACE;
break;
case GL_BLEND:
envmode |= FX_UM_E0_BLEND;
break;
case GL_ADD:
envmode |= FX_UM_E0_ADD;
break;
default:
/* do nothing */
break;
}
}
if (tObj1) {
tfxTexInfo *ti1 = fxTMGetTexInfo(tObj1);
switch (ti1->baseLevelInternalFormat) {
case GL_ALPHA:
ifmt |= FX_UM_E1_ALPHA;
break;
case GL_LUMINANCE:
ifmt |= FX_UM_E1_LUMINANCE;
break;
case GL_LUMINANCE_ALPHA:
ifmt |= FX_UM_E1_LUMINANCE_ALPHA;
break;
case GL_INTENSITY:
ifmt |= FX_UM_E1_INTENSITY;
break;
case GL_RGB:
ifmt |= FX_UM_E1_RGB;
break;
case GL_RGBA:
ifmt |= FX_UM_E1_RGBA;
break;
default:
/* do nothing */
break;
}
switch (ctx->Texture.Unit[1].EnvMode) {
case GL_DECAL:
envmode |= FX_UM_E1_DECAL;
break;
case GL_MODULATE:
envmode |= FX_UM_E1_MODULATE;
break;
case GL_REPLACE:
envmode |= FX_UM_E1_REPLACE;
break;
case GL_BLEND:
envmode |= FX_UM_E1_BLEND;
break;
case GL_ADD:
envmode |= FX_UM_E1_ADD;
break;
default:
/* do nothing */
break;
}
}
unitsmode |= (ifmt | envmode);
if (MESA_VERBOSE & (VERBOSE_DRIVER | VERBOSE_TEXTURE))
fxPrintUnitsMode("unitsmode", unitsmode);
return unitsmode;
}
/************************************************************************/
/************************* Rendering Mode SetUp *************************/
/************************************************************************/
/************************* Single Texture Set ***************************/
static void
fxSetupSingleTMU_NoLock(fxMesaContext fxMesa, struct gl_texture_object *tObj)
{
tfxTexInfo *ti = fxTMGetTexInfo(tObj);
int tmu;
/* Make sure we're not loaded incorrectly */
if (ti->isInTM) {
if (ti->LODblend) {
if (ti->whichTMU != FX_TMU_SPLIT)
fxTMMoveOutTM(fxMesa, tObj);
}
else {
if (ti->whichTMU == FX_TMU_SPLIT)
fxTMMoveOutTM(fxMesa, tObj);
}
}
/* Make sure we're loaded correctly */
if (!ti->isInTM) {
if (ti->LODblend)
fxTMMoveInTM_NoLock(fxMesa, tObj, FX_TMU_SPLIT);
else {
if (fxMesa->haveTwoTMUs) {
if (fxMesa->freeTexMem[FX_TMU0] >
FX_grTexTextureMemRequired_NoLock(GR_MIPMAPLEVELMASK_BOTH,
&(ti->info))) {
fxTMMoveInTM_NoLock(fxMesa, tObj, FX_TMU0);
}
else {
fxTMMoveInTM_NoLock(fxMesa, tObj, FX_TMU1);
}
}
else
fxTMMoveInTM_NoLock(fxMesa, tObj, FX_TMU0);
}
}
if (ti->LODblend && ti->whichTMU == FX_TMU_SPLIT) {
if ((ti->info.format == GR_TEXFMT_P_8)
&& (!fxMesa->haveGlobalPaletteTexture)) {
if (MESA_VERBOSE & VERBOSE_DRIVER) {
fprintf(stderr, "fxmesa: uploading texture palette\n");
}
FX_grTexDownloadTable_NoLock(GR_TMU0, GR_TEXTABLE_PALETTE,
&(ti->palette));
FX_grTexDownloadTable_NoLock(GR_TMU1, GR_TEXTABLE_PALETTE,
&(ti->palette));
}
FX_grTexClampMode_NoLock(GR_TMU0, ti->sClamp, ti->tClamp);
FX_grTexClampMode_NoLock(GR_TMU1, ti->sClamp, ti->tClamp);
FX_grTexFilterMode_NoLock(GR_TMU0, ti->minFilt, ti->maxFilt);
FX_grTexFilterMode_NoLock(GR_TMU1, ti->minFilt, ti->maxFilt);
FX_grTexMipMapMode_NoLock(GR_TMU0, ti->mmMode, ti->LODblend);
FX_grTexMipMapMode_NoLock(GR_TMU1, ti->mmMode, ti->LODblend);
FX_grTexSource_NoLock(GR_TMU0, ti->tm[FX_TMU0]->startAddr,
GR_MIPMAPLEVELMASK_ODD, &(ti->info));
FX_grTexSource_NoLock(GR_TMU1, ti->tm[FX_TMU1]->startAddr,
GR_MIPMAPLEVELMASK_EVEN, &(ti->info));
}
else {
if (ti->whichTMU == FX_TMU_BOTH)
tmu = FX_TMU0;
else
tmu = ti->whichTMU;
if ((ti->info.format == GR_TEXFMT_P_8)
&& (!fxMesa->haveGlobalPaletteTexture)) {
if (MESA_VERBOSE & VERBOSE_DRIVER) {
fprintf(stderr, "fxmesa: uploading texture palette\n");
}
FX_grTexDownloadTable_NoLock(tmu, GR_TEXTABLE_PALETTE,
&(ti->palette));
}
/* KW: The alternative is to do the download to the other tmu. If
* we get to this point, I think it means we are thrashing the
* texture memory, so perhaps it's not a good idea.
*/
if (ti->LODblend && (MESA_VERBOSE & VERBOSE_DRIVER))
fprintf(stderr, "fxmesa: not blending texture - only on one tmu\n");
FX_grTexClampMode_NoLock(tmu, ti->sClamp, ti->tClamp);
FX_grTexFilterMode_NoLock(tmu, ti->minFilt, ti->maxFilt);
FX_grTexMipMapMode_NoLock(tmu, ti->mmMode, FXFALSE);
FX_grTexSource_NoLock(tmu, ti->tm[tmu]->startAddr,
GR_MIPMAPLEVELMASK_BOTH, &(ti->info));
}
}
static void
fxSelectSingleTMUSrc_NoLock(fxMesaContext fxMesa, GLint tmu, FxBool LODblend)
{
if (MESA_VERBOSE & VERBOSE_DRIVER) {
fprintf(stderr, "fxmesa: fxSelectSingleTMUSrc(%d,%d)\n", tmu, LODblend);
}
if (LODblend) {
FX_grTexCombine_NoLock(GR_TMU0,
GR_COMBINE_FUNCTION_BLEND,
GR_COMBINE_FACTOR_ONE_MINUS_LOD_FRACTION,
GR_COMBINE_FUNCTION_BLEND,
GR_COMBINE_FACTOR_ONE_MINUS_LOD_FRACTION,
FXFALSE, FXFALSE);
if (fxMesa->haveTwoTMUs)
FX_grTexCombine_NoLock(GR_TMU1,
GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE,
GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE, FXFALSE, FXFALSE);
fxMesa->tmuSrc = FX_TMU_SPLIT;
}
else {
if (tmu != FX_TMU1) {
FX_grTexCombine_NoLock(GR_TMU0,
GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE,
GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE, FXFALSE, FXFALSE);
if (fxMesa->haveTwoTMUs) {
FX_grTexCombine_NoLock(GR_TMU1,
GR_COMBINE_FUNCTION_ZERO,
GR_COMBINE_FACTOR_NONE,
GR_COMBINE_FUNCTION_ZERO,
GR_COMBINE_FACTOR_NONE, FXFALSE, FXFALSE);
}
fxMesa->tmuSrc = FX_TMU0;
}
else {
FX_grTexCombine_NoLock(GR_TMU1,
GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE,
GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE, FXFALSE, FXFALSE);
/* GR_COMBINE_FUNCTION_SCALE_OTHER doesn't work ?!? */
FX_grTexCombine_NoLock(GR_TMU0,
GR_COMBINE_FUNCTION_BLEND,
GR_COMBINE_FACTOR_ONE,
GR_COMBINE_FUNCTION_BLEND,
GR_COMBINE_FACTOR_ONE, FXFALSE, FXFALSE);
fxMesa->tmuSrc = FX_TMU1;
}
}
}
static void
fxSetupTextureSingleTMU_NoLock(GLcontext * ctx, GLuint textureset)
{
fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
GrCombineLocal_t localc, locala;
GLuint unitsmode;
GLint ifmt;
tfxTexInfo *ti;
struct gl_texture_object *tObj = ctx->Texture.Unit[textureset].Current2D;
int tmu;
if (MESA_VERBOSE & VERBOSE_DRIVER) {
fprintf(stderr, "fxmesa: fxSetupTextureSingleTMU(...) Start\n");
}
ti = fxTMGetTexInfo(tObj);
fxTexValidate(ctx, tObj);
fxSetupSingleTMU_NoLock(fxMesa, tObj);
if (ti->whichTMU == FX_TMU_BOTH)
tmu = FX_TMU0;
else
tmu = ti->whichTMU;
if (fxMesa->tmuSrc != tmu)
fxSelectSingleTMUSrc_NoLock(fxMesa, tmu, ti->LODblend);
if (textureset == 0 || !fxMesa->haveTwoTMUs)
unitsmode = fxGetTexSetConfiguration(ctx, tObj, NULL);
else
unitsmode = fxGetTexSetConfiguration(ctx, NULL, tObj);
/* if(fxMesa->lastUnitsMode==unitsmode) */
/* return; */
fxMesa->lastUnitsMode = unitsmode;
fxMesa->stw_hint_state = 0;
FX_grHints_NoLock(GR_HINT_STWHINT, 0);
ifmt = ti->baseLevelInternalFormat;
if (unitsmode & FX_UM_ALPHA_ITERATED)
locala = GR_COMBINE_LOCAL_ITERATED;
else
locala = GR_COMBINE_LOCAL_CONSTANT;
if (unitsmode & FX_UM_COLOR_ITERATED)
localc = GR_COMBINE_LOCAL_ITERATED;
else
localc = GR_COMBINE_LOCAL_CONSTANT;
if (MESA_VERBOSE & (VERBOSE_DRIVER | VERBOSE_TEXTURE))
fprintf(stderr, "fxMesa: fxSetupTextureSingleTMU, envmode is %s\n",
_mesa_lookup_enum_by_nr(ctx->Texture.Unit[textureset].EnvMode));
switch (ctx->Texture.Unit[textureset].EnvMode) {
case GL_DECAL:
FX_grAlphaCombine_NoLock(GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE,
locala, GR_COMBINE_OTHER_NONE, FXFALSE);
FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_BLEND,
GR_COMBINE_FACTOR_TEXTURE_ALPHA,
localc, GR_COMBINE_OTHER_TEXTURE, FXFALSE);
break;
case GL_MODULATE:
FX_grAlphaCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER,
GR_COMBINE_FACTOR_LOCAL,
locala, GR_COMBINE_OTHER_TEXTURE, FXFALSE);
if (ifmt == GL_ALPHA)
FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE,
localc, GR_COMBINE_OTHER_NONE, FXFALSE);
else
FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER,
GR_COMBINE_FACTOR_LOCAL,
localc, GR_COMBINE_OTHER_TEXTURE, FXFALSE);
break;
case GL_BLEND:
if (MESA_VERBOSE & VERBOSE_DRIVER)
fprintf(stderr, "fx Driver: GL_BLEND not yet supported\n");
break;
case GL_REPLACE:
if ((ifmt == GL_RGB) || (ifmt == GL_LUMINANCE))
FX_grAlphaCombine_NoLock(GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE,
locala, GR_COMBINE_OTHER_NONE, FXFALSE);
else
FX_grAlphaCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER,
GR_COMBINE_FACTOR_ONE,
locala, GR_COMBINE_OTHER_TEXTURE, FXFALSE);
if (ifmt == GL_ALPHA)
FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE,
localc, GR_COMBINE_OTHER_NONE, FXFALSE);
else
FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER,
GR_COMBINE_FACTOR_ONE,
localc, GR_COMBINE_OTHER_TEXTURE, FXFALSE);
break;
default:
if (MESA_VERBOSE & VERBOSE_DRIVER)
fprintf(stderr, "fx Driver: %x Texture.EnvMode not yet supported\n",
ctx->Texture.Unit[textureset].EnvMode);
break;
}
if (MESA_VERBOSE & VERBOSE_DRIVER) {
fprintf(stderr, "fxmesa: fxSetupTextureSingleTMU(...) End\n");
}
}
static void
fxSetupTextureSingleTMU(GLcontext * ctx, GLuint textureset)
{
BEGIN_BOARD_LOCK();
fxSetupTextureSingleTMU_NoLock(ctx, textureset);
END_BOARD_LOCK();
}
/************************* Double Texture Set ***************************/
static void
fxSetupDoubleTMU_NoLock(fxMesaContext fxMesa,
struct gl_texture_object *tObj0,
struct gl_texture_object *tObj1)
{
#define T0_NOT_IN_TMU 0x01
#define T1_NOT_IN_TMU 0x02
#define T0_IN_TMU0 0x04
#define T1_IN_TMU0 0x08
#define T0_IN_TMU1 0x10
#define T1_IN_TMU1 0x20
tfxTexInfo *ti0 = fxTMGetTexInfo(tObj0);
tfxTexInfo *ti1 = fxTMGetTexInfo(tObj1);
GLuint tstate = 0;
int tmu0 = 0, tmu1 = 1;
if (MESA_VERBOSE & VERBOSE_DRIVER) {
fprintf(stderr, "fxmesa: fxSetupDoubleTMU(...)\n");
}
/* We shouldn't need to do this. There is something wrong with
mutlitexturing when the TMUs are swapped. So, we're forcing
them to always be loaded correctly. !!! */
if (ti0->whichTMU == FX_TMU1)
fxTMMoveOutTM_NoLock(fxMesa, tObj0);
if (ti1->whichTMU == FX_TMU0)
fxTMMoveOutTM_NoLock(fxMesa, tObj1);
if (ti0->isInTM) {
switch (ti0->whichTMU) {
case FX_TMU0:
tstate |= T0_IN_TMU0;
break;
case FX_TMU1:
tstate |= T0_IN_TMU1;
break;
case FX_TMU_BOTH:
tstate |= T0_IN_TMU0 | T0_IN_TMU1;
break;
case FX_TMU_SPLIT:
tstate |= T0_NOT_IN_TMU;
break;
}
}
else
tstate |= T0_NOT_IN_TMU;
if (ti1->isInTM) {
switch (ti1->whichTMU) {
case FX_TMU0:
tstate |= T1_IN_TMU0;
break;
case FX_TMU1:
tstate |= T1_IN_TMU1;
break;
case FX_TMU_BOTH:
tstate |= T1_IN_TMU0 | T1_IN_TMU1;
break;
case FX_TMU_SPLIT:
tstate |= T1_NOT_IN_TMU;
break;
}
}
else
tstate |= T1_NOT_IN_TMU;
ti0->lastTimeUsed = fxMesa->texBindNumber;
ti1->lastTimeUsed = fxMesa->texBindNumber;
/* Move texture maps into TMUs */
if (!(((tstate & T0_IN_TMU0) && (tstate & T1_IN_TMU1)) ||
((tstate & T0_IN_TMU1) && (tstate & T1_IN_TMU0)))) {
if (tObj0 == tObj1)
fxTMMoveInTM_NoLock(fxMesa, tObj1, FX_TMU_BOTH);
else {
/* Find the minimal way to correct the situation */
if ((tstate & T0_IN_TMU0) || (tstate & T1_IN_TMU1)) {
/* We have one in the standard order, setup the other */
if (tstate & T0_IN_TMU0) { /* T0 is in TMU0, put T1 in TMU1 */
fxTMMoveInTM_NoLock(fxMesa, tObj1, FX_TMU1);
}
else {
fxTMMoveInTM_NoLock(fxMesa, tObj0, FX_TMU0);
}
/* tmu0 and tmu1 are setup */
}
else if ((tstate & T0_IN_TMU1) || (tstate & T1_IN_TMU0)) {
/* we have one in the reverse order, setup the other */
if (tstate & T1_IN_TMU0) { /* T1 is in TMU0, put T0 in TMU1 */
fxTMMoveInTM_NoLock(fxMesa, tObj0, FX_TMU1);
}
else {
fxTMMoveInTM_NoLock(fxMesa, tObj1, FX_TMU0);
}
tmu0 = 1;
tmu1 = 0;
}
else { /* Nothing is loaded */
fxTMMoveInTM_NoLock(fxMesa, tObj0, FX_TMU0);
fxTMMoveInTM_NoLock(fxMesa, tObj1, FX_TMU1);
/* tmu0 and tmu1 are setup */
}
}
}
if (!fxMesa->haveGlobalPaletteTexture) {
if (ti0->info.format == GR_TEXFMT_P_8) {
if (MESA_VERBOSE & VERBOSE_DRIVER) {
fprintf(stderr, "fxmesa: uploading texture palette TMU0\n");
}
FX_grTexDownloadTable_NoLock(tmu0, GR_TEXTABLE_PALETTE,
&(ti0->palette));
}
if (ti1->info.format == GR_TEXFMT_P_8) {
if (MESA_VERBOSE & VERBOSE_DRIVER) {
fprintf(stderr, "fxmesa: uploading texture palette TMU1\n");
}
FX_grTexDownloadTable_NoLock(tmu1, GR_TEXTABLE_PALETTE,
&(ti1->palette));
}
}
FX_grTexSource_NoLock(tmu0, ti0->tm[tmu0]->startAddr,
GR_MIPMAPLEVELMASK_BOTH, &(ti0->info));
FX_grTexClampMode_NoLock(tmu0, ti0->sClamp, ti0->tClamp);
FX_grTexFilterMode_NoLock(tmu0, ti0->minFilt, ti0->maxFilt);
FX_grTexMipMapMode_NoLock(tmu0, ti0->mmMode, FXFALSE);
FX_grTexSource_NoLock(tmu1, ti1->tm[tmu1]->startAddr,
GR_MIPMAPLEVELMASK_BOTH, &(ti1->info));
FX_grTexClampMode_NoLock(tmu1, ti1->sClamp, ti1->tClamp);
FX_grTexFilterMode_NoLock(tmu1, ti1->minFilt, ti1->maxFilt);
FX_grTexMipMapMode_NoLock(tmu1, ti1->mmMode, FXFALSE);
#undef T0_NOT_IN_TMU
#undef T1_NOT_IN_TMU
#undef T0_IN_TMU0
#undef T1_IN_TMU0
#undef T0_IN_TMU1
#undef T1_IN_TMU1
}
static void
fxSetupTextureDoubleTMU_NoLock(GLcontext * ctx)
{
fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
GrCombineLocal_t localc, locala;
tfxTexInfo *ti0, *ti1;
struct gl_texture_object *tObj0 = ctx->Texture.Unit[0].Current2D;
struct gl_texture_object *tObj1 = ctx->Texture.Unit[1].Current2D;
GLuint envmode, ifmt, unitsmode;
int tmu0 = 0, tmu1 = 1;
if (MESA_VERBOSE & VERBOSE_DRIVER) {
fprintf(stderr, "fxmesa: fxSetupTextureDoubleTMU(...) Start\n");
}
ti0 = fxTMGetTexInfo(tObj0);
fxTexValidate(ctx, tObj0);
ti1 = fxTMGetTexInfo(tObj1);
fxTexValidate(ctx, tObj1);
fxSetupDoubleTMU_NoLock(fxMesa, tObj0, tObj1);
unitsmode = fxGetTexSetConfiguration(ctx, tObj0, tObj1);
/* if(fxMesa->lastUnitsMode==unitsmode) */
/* return; */
fxMesa->lastUnitsMode = unitsmode;
fxMesa->stw_hint_state |= GR_STWHINT_ST_DIFF_TMU1;
FX_grHints_NoLock(GR_HINT_STWHINT, fxMesa->stw_hint_state);
envmode = unitsmode & FX_UM_E_ENVMODE;
ifmt = unitsmode & FX_UM_E_IFMT;
if (unitsmode & FX_UM_ALPHA_ITERATED)
locala = GR_COMBINE_LOCAL_ITERATED;
else
locala = GR_COMBINE_LOCAL_CONSTANT;
if (unitsmode & FX_UM_COLOR_ITERATED)
localc = GR_COMBINE_LOCAL_ITERATED;
else
localc = GR_COMBINE_LOCAL_CONSTANT;
if (MESA_VERBOSE & (VERBOSE_DRIVER | VERBOSE_TEXTURE))
fprintf(stderr, "fxMesa: fxSetupTextureDoubleTMU, envmode is %s/%s\n",
_mesa_lookup_enum_by_nr(ctx->Texture.Unit[0].EnvMode),
_mesa_lookup_enum_by_nr(ctx->Texture.Unit[1].EnvMode));
if ((ti0->whichTMU == FX_TMU1) || (ti1->whichTMU == FX_TMU0)) {
tmu0 = 1;
tmu1 = 0;
}
fxMesa->tmuSrc = FX_TMU_BOTH;
switch (envmode) {
case (FX_UM_E0_MODULATE | FX_UM_E1_MODULATE):
{
GLboolean isalpha[FX_NUM_TMU];
if (ti0->baseLevelInternalFormat == GL_ALPHA)
isalpha[tmu0] = GL_TRUE;
else
isalpha[tmu0] = GL_FALSE;
if (ti1->baseLevelInternalFormat == GL_ALPHA)
isalpha[tmu1] = GL_TRUE;
else
isalpha[tmu1] = GL_FALSE;
if (isalpha[FX_TMU1])
FX_grTexCombine_NoLock(GR_TMU1,
GR_COMBINE_FUNCTION_ZERO,
GR_COMBINE_FACTOR_NONE,
GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE, FXTRUE, FXFALSE);
else
FX_grTexCombine_NoLock(GR_TMU1,
GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE,
GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE, FXFALSE, FXFALSE);
if (isalpha[FX_TMU0])
FX_grTexCombine_NoLock(GR_TMU0,
GR_COMBINE_FUNCTION_BLEND_OTHER,
GR_COMBINE_FACTOR_ONE,
GR_COMBINE_FUNCTION_BLEND_OTHER,
GR_COMBINE_FACTOR_LOCAL, FXFALSE, FXFALSE);
else
FX_grTexCombine_NoLock(GR_TMU0,
GR_COMBINE_FUNCTION_BLEND_OTHER,
GR_COMBINE_FACTOR_LOCAL,
GR_COMBINE_FUNCTION_BLEND_OTHER,
GR_COMBINE_FACTOR_LOCAL, FXFALSE, FXFALSE);
FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER,
GR_COMBINE_FACTOR_LOCAL,
localc, GR_COMBINE_OTHER_TEXTURE, FXFALSE);
FX_grAlphaCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER,
GR_COMBINE_FACTOR_LOCAL,
locala, GR_COMBINE_OTHER_TEXTURE, FXFALSE);
break;
}
case (FX_UM_E0_REPLACE | FX_UM_E1_BLEND): /* Only for GLQuake */
if (tmu1 == FX_TMU1) {
FX_grTexCombine_NoLock(GR_TMU1,
GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE,
GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE, FXTRUE, FXFALSE);
FX_grTexCombine_NoLock(GR_TMU0,
GR_COMBINE_FUNCTION_BLEND_OTHER,
GR_COMBINE_FACTOR_LOCAL,
GR_COMBINE_FUNCTION_BLEND_OTHER,
GR_COMBINE_FACTOR_LOCAL, FXFALSE, FXFALSE);
}
else {
FX_grTexCombine_NoLock(GR_TMU1,
GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE,
GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE, FXFALSE, FXFALSE);
FX_grTexCombine_NoLock(GR_TMU0,
GR_COMBINE_FUNCTION_BLEND_OTHER,
GR_COMBINE_FACTOR_ONE_MINUS_LOCAL,
GR_COMBINE_FUNCTION_BLEND_OTHER,
GR_COMBINE_FACTOR_ONE_MINUS_LOCAL,
FXFALSE, FXFALSE);
}
FX_grAlphaCombine_NoLock(GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE,
locala, GR_COMBINE_OTHER_NONE, FXFALSE);
FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER,
GR_COMBINE_FACTOR_ONE,
localc, GR_COMBINE_OTHER_TEXTURE, FXFALSE);
break;
case (FX_UM_E0_REPLACE | FX_UM_E1_MODULATE): /* Quake 2 and 3 */
if (tmu1 == FX_TMU1) {
FX_grTexCombine_NoLock(GR_TMU1,
GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE,
GR_COMBINE_FUNCTION_ZERO,
GR_COMBINE_FACTOR_NONE, FXFALSE, FXTRUE);
FX_grTexCombine_NoLock(GR_TMU0,
GR_COMBINE_FUNCTION_BLEND_OTHER,
GR_COMBINE_FACTOR_LOCAL,
GR_COMBINE_FUNCTION_BLEND_OTHER,
GR_COMBINE_FACTOR_LOCAL, FXFALSE, FXFALSE);
}
else {
FX_grTexCombine_NoLock(GR_TMU1,
GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE,
GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE, FXFALSE, FXFALSE);
FX_grTexCombine_NoLock(GR_TMU0,
GR_COMBINE_FUNCTION_BLEND_OTHER,
GR_COMBINE_FACTOR_LOCAL,
GR_COMBINE_FUNCTION_BLEND_OTHER,
GR_COMBINE_FACTOR_ONE, FXFALSE, FXFALSE);
}
if (ti0->baseLevelInternalFormat == GL_RGB)
FX_grAlphaCombine_NoLock(GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE,
locala, GR_COMBINE_OTHER_NONE, FXFALSE);
else
FX_grAlphaCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER,
GR_COMBINE_FACTOR_ONE,
locala, GR_COMBINE_OTHER_NONE, FXFALSE);
FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER,
GR_COMBINE_FACTOR_ONE,
localc, GR_COMBINE_OTHER_TEXTURE, FXFALSE);
break;
case (FX_UM_E0_MODULATE | FX_UM_E1_ADD): /* Quake 3 Sky */
{
GLboolean isalpha[FX_NUM_TMU];
if (ti0->baseLevelInternalFormat == GL_ALPHA)
isalpha[tmu0] = GL_TRUE;
else
isalpha[tmu0] = GL_FALSE;
if (ti1->baseLevelInternalFormat == GL_ALPHA)
isalpha[tmu1] = GL_TRUE;
else
isalpha[tmu1] = GL_FALSE;
if (isalpha[FX_TMU1])
FX_grTexCombine_NoLock(GR_TMU1,
GR_COMBINE_FUNCTION_ZERO,
GR_COMBINE_FACTOR_NONE,
GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE, FXTRUE, FXFALSE);
else
FX_grTexCombine_NoLock(GR_TMU1,
GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE,
GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE, FXFALSE, FXFALSE);
if (isalpha[FX_TMU0])
FX_grTexCombine_NoLock(GR_TMU0,
GR_COMBINE_FUNCTION_SCALE_OTHER,
GR_COMBINE_FACTOR_ONE,
GR_COMBINE_FUNCTION_SCALE_OTHER_ADD_LOCAL,
GR_COMBINE_FACTOR_ONE, FXFALSE, FXFALSE);
else
FX_grTexCombine_NoLock(GR_TMU0,
GR_COMBINE_FUNCTION_SCALE_OTHER_ADD_LOCAL,
GR_COMBINE_FACTOR_ONE,
GR_COMBINE_FUNCTION_SCALE_OTHER_ADD_LOCAL,
GR_COMBINE_FACTOR_ONE, FXFALSE, FXFALSE);
FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER,
GR_COMBINE_FACTOR_LOCAL,
localc, GR_COMBINE_OTHER_TEXTURE, FXFALSE);
FX_grAlphaCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER,
GR_COMBINE_FACTOR_LOCAL,
locala, GR_COMBINE_OTHER_TEXTURE, FXFALSE);
break;
}
default:
fprintf(stderr, "Unexpected dual texture mode encountered\n");
break;
}
if (MESA_VERBOSE & VERBOSE_DRIVER) {
fprintf(stderr, "fxmesa: fxSetupTextureDoubleTMU(...) End\n");
}
}
/************************* No Texture ***************************/
static void
fxSetupTextureNone_NoLock(GLcontext * ctx)
{
fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
GrCombineLocal_t localc, locala;
if (MESA_VERBOSE & VERBOSE_DRIVER) {
fprintf(stderr, "fxmesa: fxSetupTextureNone(...)\n");
}
if ((ctx->Light.ShadeModel == GL_SMOOTH) || 1 ||
(ctx->Point.SmoothFlag) ||
(ctx->Line.SmoothFlag) ||
(ctx->Polygon.SmoothFlag)) locala = GR_COMBINE_LOCAL_ITERATED;
else
locala = GR_COMBINE_LOCAL_CONSTANT;
if (ctx->Light.ShadeModel == GL_SMOOTH || 1)
localc = GR_COMBINE_LOCAL_ITERATED;
else
localc = GR_COMBINE_LOCAL_CONSTANT;
FX_grAlphaCombine_NoLock(GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE,
locala, GR_COMBINE_OTHER_NONE, FXFALSE);
FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_LOCAL,
GR_COMBINE_FACTOR_NONE,
localc, GR_COMBINE_OTHER_NONE, FXFALSE);
fxMesa->lastUnitsMode = FX_UM_NONE;
}
/************************************************************************/
/************************** Texture Mode SetUp **************************/
/************************************************************************/
static void
fxSetupTexture_NoLock(GLcontext * ctx)
{
fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
GLuint tex2Denabled;
if (MESA_VERBOSE & VERBOSE_DRIVER) {
fprintf(stderr, "fxmesa: fxSetupTexture(...)\n");
}
/* Texture Combine, Color Combine and Alpha Combine.
*/
tex2Denabled = (ctx->Texture._ReallyEnabled & TEXTURE0_2D);
if (fxMesa->haveTwoTMUs)
tex2Denabled |= (ctx->Texture._ReallyEnabled & TEXTURE1_2D);
switch (tex2Denabled) {
case TEXTURE0_2D:
fxSetupTextureSingleTMU_NoLock(ctx, 0);
break;
case TEXTURE1_2D:
fxSetupTextureSingleTMU_NoLock(ctx, 1);
break;
case (TEXTURE0_2D | TEXTURE1_2D):
if (fxMesa->haveTwoTMUs)
fxSetupTextureDoubleTMU_NoLock(ctx);
else {
if (MESA_VERBOSE & VERBOSE_DRIVER)
fprintf(stderr, "fxmesa: enabling fake multitexture\n");
fxSetupTextureSingleTMU_NoLock(ctx, 0);
}
break;
default:
fxSetupTextureNone_NoLock(ctx);
break;
}
}
static void
fxSetupTexture(GLcontext * ctx)
{
BEGIN_BOARD_LOCK();
fxSetupTexture_NoLock(ctx);
END_BOARD_LOCK();
}
/************************************************************************/
/**************************** Blend SetUp *******************************/
/************************************************************************/
/* XXX consider supporting GL_INGR_blend_func_separate */
void
fxDDBlendFunc(GLcontext * ctx, GLenum sfactor, GLenum dfactor)
{
fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
tfxUnitsState *us = &fxMesa->unitsState;
GrAlphaBlendFnc_t sfact, dfact, asfact, adfact;
/* From the Glide documentation:
For alpha source and destination blend function factor
parameters, Voodoo Graphics supports only
GR_BLEND_ZERO and GR_BLEND_ONE.
*/
switch (sfactor) {
case GL_ZERO:
asfact = sfact = GR_BLEND_ZERO;
break;
case GL_ONE:
asfact = sfact = GR_BLEND_ONE;
break;
case GL_DST_COLOR:
sfact = GR_BLEND_DST_COLOR;
asfact = GR_BLEND_ONE;
break;
case GL_ONE_MINUS_DST_COLOR:
sfact = GR_BLEND_ONE_MINUS_DST_COLOR;
asfact = GR_BLEND_ONE;
break;
case GL_SRC_ALPHA:
sfact = GR_BLEND_SRC_ALPHA;
asfact = GR_BLEND_ONE;
break;
case GL_ONE_MINUS_SRC_ALPHA:
sfact = GR_BLEND_ONE_MINUS_SRC_ALPHA;
asfact = GR_BLEND_ONE;
break;
case GL_DST_ALPHA:
sfact = GR_BLEND_DST_ALPHA;
asfact = GR_BLEND_ONE;
break;
case GL_ONE_MINUS_DST_ALPHA:
sfact = GR_BLEND_ONE_MINUS_DST_ALPHA;
asfact = GR_BLEND_ONE;
break;
case GL_SRC_ALPHA_SATURATE:
sfact = GR_BLEND_ALPHA_SATURATE;
asfact = GR_BLEND_ONE;
break;
case GL_SRC_COLOR:
case GL_ONE_MINUS_SRC_COLOR:
/* USELESS */
asfact = sfact = GR_BLEND_ONE;
break;
default:
asfact = sfact = GR_BLEND_ONE;
break;
}
if ((sfact != us->blendSrcFuncRGB) || (asfact != us->blendSrcFuncAlpha)) {
us->blendSrcFuncRGB = sfact;
us->blendSrcFuncAlpha = asfact;
fxMesa->new_state |= FX_NEW_BLEND;
}
switch (dfactor) {
case GL_ZERO:
adfact = dfact = GR_BLEND_ZERO;
break;
case GL_ONE:
adfact = dfact = GR_BLEND_ONE;
break;
case GL_SRC_COLOR:
dfact = GR_BLEND_SRC_COLOR;
adfact = GR_BLEND_ZERO;
break;
case GL_ONE_MINUS_SRC_COLOR:
dfact = GR_BLEND_ONE_MINUS_SRC_COLOR;
adfact = GR_BLEND_ZERO;
break;
case GL_SRC_ALPHA:
dfact = GR_BLEND_SRC_ALPHA;
adfact = GR_BLEND_ZERO;
break;
case GL_ONE_MINUS_SRC_ALPHA:
dfact = GR_BLEND_ONE_MINUS_SRC_ALPHA;
adfact = GR_BLEND_ZERO;
break;
case GL_DST_ALPHA:
/* dfact=GR_BLEND_DST_ALPHA; */
/* We can't do DST_ALPHA */
dfact = GR_BLEND_ONE;
adfact = GR_BLEND_ZERO;
break;
case GL_ONE_MINUS_DST_ALPHA:
/* dfact=GR_BLEND_ONE_MINUS_DST_ALPHA; */
/* We can't do DST_ALPHA */
dfact = GR_BLEND_ZERO;
adfact = GR_BLEND_ZERO;
break;
case GL_SRC_ALPHA_SATURATE:
case GL_DST_COLOR:
case GL_ONE_MINUS_DST_COLOR:
/* USELESS */
adfact = dfact = GR_BLEND_ZERO;
break;
default:
adfact = dfact = GR_BLEND_ZERO;
break;
}
if ((dfact != us->blendDstFuncRGB) || (adfact != us->blendDstFuncAlpha)) {
us->blendDstFuncRGB = dfact;
us->blendDstFuncAlpha = adfact;
fxMesa->new_state |= FX_NEW_BLEND;
}
}
static void
fxSetupBlend(GLcontext * ctx)
{
fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
tfxUnitsState *us = &fxMesa->unitsState;
if (us->blendEnabled)
FX_grAlphaBlendFunction(us->blendSrcFuncRGB, us->blendDstFuncRGB,
us->blendSrcFuncAlpha, us->blendDstFuncAlpha);
else
FX_grAlphaBlendFunction(GR_BLEND_ONE, GR_BLEND_ZERO, GR_BLEND_ONE,
GR_BLEND_ZERO);
}
/************************************************************************/
/************************** Alpha Test SetUp ****************************/
/************************************************************************/
void
fxDDAlphaFunc(GLcontext * ctx, GLenum func, GLchan ref)
{
fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
tfxUnitsState *us = &fxMesa->unitsState;
GrCmpFnc_t newfunc;
switch (func) {
case GL_NEVER:
newfunc = GR_CMP_NEVER;
break;
case GL_LESS:
newfunc = GR_CMP_LESS;
break;
case GL_EQUAL:
newfunc = GR_CMP_EQUAL;
break;
case GL_LEQUAL:
newfunc = GR_CMP_LEQUAL;
break;
case GL_GREATER:
newfunc = GR_CMP_GREATER;
break;
case GL_NOTEQUAL:
newfunc = GR_CMP_NOTEQUAL;
break;
case GL_GEQUAL:
newfunc = GR_CMP_GEQUAL;
break;
case GL_ALWAYS:
newfunc = GR_CMP_ALWAYS;
break;
default:
fprintf(stderr, "fx Driver: internal error in fxDDAlphaFunc()\n");
fxCloseHardware();
exit(-1);
break;
}
if (newfunc != us->alphaTestFunc) {
us->alphaTestFunc = newfunc;
fxMesa->new_state |= FX_NEW_ALPHA;
}
if (ref != us->alphaTestRefValue) {
us->alphaTestRefValue = ref;
fxMesa->new_state |= FX_NEW_ALPHA;
}
}
static void
fxSetupAlphaTest(GLcontext * ctx)
{
fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
tfxUnitsState *us = &fxMesa->unitsState;
if (us->alphaTestEnabled) {
FX_grAlphaTestFunction(us->alphaTestFunc);
FX_grAlphaTestReferenceValue(us->alphaTestRefValue);
}
else
FX_grAlphaTestFunction(GR_CMP_ALWAYS);
}
/************************************************************************/
/************************** Depth Test SetUp ****************************/
/************************************************************************/
void
fxDDDepthFunc(GLcontext * ctx, GLenum func)
{
fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
tfxUnitsState *us = &fxMesa->unitsState;
GrCmpFnc_t dfunc;
switch (func) {
case GL_NEVER:
dfunc = GR_CMP_NEVER;
break;
case GL_LESS:
dfunc = GR_CMP_LESS;
break;
case GL_GEQUAL:
dfunc = GR_CMP_GEQUAL;
break;
case GL_LEQUAL:
dfunc = GR_CMP_LEQUAL;
break;
case GL_GREATER:
dfunc = GR_CMP_GREATER;
break;
case GL_NOTEQUAL:
dfunc = GR_CMP_NOTEQUAL;
break;
case GL_EQUAL:
dfunc = GR_CMP_EQUAL;
break;
case GL_ALWAYS:
dfunc = GR_CMP_ALWAYS;
break;
default:
fprintf(stderr, "fx Driver: internal error in fxDDDepthFunc()\n");
fxCloseHardware();
exit(-1);
break;
}
if (dfunc != us->depthTestFunc) {
us->depthTestFunc = dfunc;
fxMesa->new_state |= FX_NEW_DEPTH;
}
}
void
fxDDDepthMask(GLcontext * ctx, GLboolean flag)
{
fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
tfxUnitsState *us = &fxMesa->unitsState;
if (flag != us->depthMask) {
us->depthMask = flag;
fxMesa->new_state |= FX_NEW_DEPTH;
}
}
static void
fxSetupDepthTest(GLcontext * ctx)
{
fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
tfxUnitsState *us = &fxMesa->unitsState;
if (us->depthTestEnabled) {
FX_grDepthBufferFunction(us->depthTestFunc);
FX_grDepthMask(us->depthMask);
}
else {
FX_grDepthBufferFunction(GR_CMP_ALWAYS);
FX_grDepthMask(FXFALSE);
}
}
/************************************************************************/
/**************************** Color Mask SetUp **************************/
/************************************************************************/
void
fxDDColorMask(GLcontext * ctx,
GLboolean r, GLboolean g, GLboolean b, GLboolean a)
{
fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
fxMesa->new_state |= FX_NEW_COLOR_MASK;
(void) r;
(void) g;
(void) b;
(void) a;
}
static void
fxSetupColorMask(GLcontext * ctx)
{
fxMesaContext fxMesa = FX_CONTEXT(ctx);
if (ctx->Color.DrawBuffer == GL_NONE) {
FX_grColorMask(FXFALSE, FXFALSE);
}
else {
FX_grColorMask(ctx->Color.ColorMask[RCOMP] ||
ctx->Color.ColorMask[GCOMP] ||
ctx->Color.ColorMask[BCOMP],
ctx->Color.ColorMask[ACOMP] && fxMesa->haveAlphaBuffer);
}
}
/************************************************************************/
/**************************** Fog Mode SetUp ****************************/
/************************************************************************/
/*
* This is called during state update in order to update the Glide fog state.
*/
static void
fxSetupFog(GLcontext * ctx)
{
if (ctx->Fog.Enabled /*&& ctx->FogMode==FOG_FRAGMENT */ ) {
fxMesaContext fxMesa = FX_CONTEXT(ctx);
/* update fog color */
GLubyte col[4];
col[0] = (unsigned int) (255 * ctx->Fog.Color[0]);
col[1] = (unsigned int) (255 * ctx->Fog.Color[1]);
col[2] = (unsigned int) (255 * ctx->Fog.Color[2]);
col[3] = (unsigned int) (255 * ctx->Fog.Color[3]);
FX_grFogColorValue(FXCOLOR4(col));
if (fxMesa->fogTableMode != ctx->Fog.Mode ||
fxMesa->fogDensity != ctx->Fog.Density ||
fxMesa->fogStart != ctx->Fog.Start ||
fxMesa->fogEnd != ctx->Fog.End) {
/* reload the fog table */
switch (ctx->Fog.Mode) {
case GL_LINEAR:
guFogGenerateLinear(fxMesa->fogTable, ctx->Fog.Start,
ctx->Fog.End);
break;
case GL_EXP:
guFogGenerateExp(fxMesa->fogTable, ctx->Fog.Density);
break;
case GL_EXP2:
guFogGenerateExp2(fxMesa->fogTable, ctx->Fog.Density);
break;
default:
;
}
fxMesa->fogTableMode = ctx->Fog.Mode;
fxMesa->fogDensity = ctx->Fog.Density;
fxMesa->fogStart = ctx->Fog.Start;
fxMesa->fogEnd = ctx->Fog.End;
}
FX_grFogTable(fxMesa->fogTable);
FX_grFogMode(GR_FOG_WITH_TABLE);
}
else {
FX_grFogMode(GR_FOG_DISABLE);
}
}
void
fxDDFogfv(GLcontext * ctx, GLenum pname, const GLfloat * params)
{
FX_CONTEXT(ctx)->new_state |= FX_NEW_FOG;
}
/************************************************************************/
/************************** Scissor Test SetUp **************************/
/************************************************************************/
/* This routine is used in managing the lock state, and therefore can't lock */
void
fxSetScissorValues(GLcontext * ctx)
{
fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
int xmin, xmax;
int ymin, ymax, check;
if (ctx->Scissor.Enabled) {
xmin = ctx->Scissor.X;
xmax = ctx->Scissor.X + ctx->Scissor.Width;
ymin = ctx->Scissor.Y;
ymax = ctx->Scissor.Y + ctx->Scissor.Height;
check = 1;
}
else {
xmin = 0;
ymin = 0;
xmax = fxMesa->width;
ymax = fxMesa->height;
check = 0;
}
if (xmin < fxMesa->clipMinX)
xmin = fxMesa->clipMinX;
if (xmax > fxMesa->clipMaxX)
xmax = fxMesa->clipMaxX;
if (ymin < fxMesa->screen_height - fxMesa->clipMaxY)
ymin = fxMesa->screen_height - fxMesa->clipMaxY;
if (ymax > fxMesa->screen_height - fxMesa->clipMinY)
ymax = fxMesa->screen_height - fxMesa->clipMinY;
FX_grClipWindow_NoLock(xmin, ymin, xmax, ymax);
}
static void
fxSetupScissor(GLcontext * ctx)
{
BEGIN_BOARD_LOCK();
fxSetScissorValues(ctx);
END_BOARD_LOCK();
}
void
fxDDScissor(GLcontext * ctx, GLint x, GLint y, GLsizei w, GLsizei h)
{
FX_CONTEXT(ctx)->new_state |= FX_NEW_SCISSOR;
}
/************************************************************************/
/*************************** Cull mode setup ****************************/
/************************************************************************/
void
fxDDCullFace(GLcontext * ctx, GLenum mode)
{
(void) mode;
FX_CONTEXT(ctx)->new_state |= FX_NEW_CULL;
}
void
fxDDFrontFace(GLcontext * ctx, GLenum mode)
{
(void) mode;
FX_CONTEXT(ctx)->new_state |= FX_NEW_CULL;
}
static void
fxSetupCull(GLcontext * ctx)
{
if (ctx->Polygon.CullFlag) {
switch (ctx->Polygon.CullFaceMode) {
case GL_BACK:
if (ctx->Polygon.FrontFace == GL_CCW)
FX_CONTEXT(ctx)->cullMode = GR_CULL_NEGATIVE;
else
FX_CONTEXT(ctx)->cullMode = GR_CULL_POSITIVE;
break;
case GL_FRONT:
if (ctx->Polygon.FrontFace == GL_CCW)
FX_CONTEXT(ctx)->cullMode = GR_CULL_POSITIVE;
else
FX_CONTEXT(ctx)->cullMode = GR_CULL_NEGATIVE;
break;
case GL_FRONT_AND_BACK:
FX_CONTEXT(ctx)->cullMode = GR_CULL_DISABLE;
break;
default:
break;
}
}
else
FX_CONTEXT(ctx)->cullMode = GR_CULL_DISABLE;
if (FX_CONTEXT(ctx)->raster_primitive == GL_TRIANGLES)
FX_grCullMode(FX_CONTEXT(ctx)->cullMode);
}
/************************************************************************/
/****************************** DD Enable ******************************/
/************************************************************************/
void
fxDDEnable(GLcontext * ctx, GLenum cap, GLboolean state)
{
fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
tfxUnitsState *us = &fxMesa->unitsState;
if (MESA_VERBOSE & VERBOSE_DRIVER) {
fprintf(stderr, "fxmesa: fxDDEnable(...)\n");
}
switch (cap) {
case GL_ALPHA_TEST:
if (state != us->alphaTestEnabled) {
us->alphaTestEnabled = state;
fxMesa->new_state |= FX_NEW_ALPHA;
}
break;
case GL_BLEND:
if (state != us->blendEnabled) {
us->blendEnabled = state;
fxMesa->new_state |= FX_NEW_BLEND;
}
break;
case GL_DEPTH_TEST:
if (state != us->depthTestEnabled) {
us->depthTestEnabled = state;
fxMesa->new_state |= FX_NEW_DEPTH;
}
break;
case GL_DITHER:
if (state) {
FX_grDitherMode(GR_DITHER_4x4);
}
else {
FX_grDitherMode(GR_DITHER_DISABLE);
}
break;
case GL_SCISSOR_TEST:
fxMesa->new_state |= FX_NEW_SCISSOR;
break;
case GL_SHARED_TEXTURE_PALETTE_EXT:
fxDDTexUseGlbPalette(ctx, state);
break;
case GL_FOG:
fxMesa->new_state |= FX_NEW_FOG;
break;
case GL_CULL_FACE:
fxMesa->new_state |= FX_NEW_CULL;
break;
case GL_LINE_SMOOTH:
case GL_LINE_STIPPLE:
case GL_POINT_SMOOTH:
case GL_POLYGON_SMOOTH:
case GL_TEXTURE_2D:
fxMesa->new_state |= FX_NEW_TEXTURING;
break;
default:
; /* XXX no-op? */
}
}
/************************************************************************/
/************************** Changes to units state **********************/
/************************************************************************/
/* All units setup is handled under texture setup.
*/
void
fxDDShadeModel(GLcontext * ctx, GLenum mode)
{
FX_CONTEXT(ctx)->new_state |= FX_NEW_TEXTURING;
}
/************************************************************************/
/****************************** Units SetUp *****************************/
/************************************************************************/
static void
fx_print_state_flags(const char *msg, GLuint flags)
{
fprintf(stderr,
"%s: (0x%x) %s%s%s%s%s%s%s\n",
msg,
flags,
(flags & FX_NEW_TEXTURING) ? "texture, " : "",
(flags & FX_NEW_BLEND) ? "blend, " : "",
(flags & FX_NEW_ALPHA) ? "alpha, " : "",
(flags & FX_NEW_FOG) ? "fog, " : "",
(flags & FX_NEW_SCISSOR) ? "scissor, " : "",
(flags & FX_NEW_COLOR_MASK) ? "colormask, " : "",
(flags & FX_NEW_CULL) ? "cull, " : "");
}
void
fxSetupFXUnits(GLcontext * ctx)
{
fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
GLuint newstate = fxMesa->new_state;
if (MESA_VERBOSE & VERBOSE_DRIVER)
fx_print_state_flags("fxmesa: fxSetupFXUnits", newstate);
if (newstate) {
if (newstate & FX_NEW_TEXTURING)
fxSetupTexture(ctx);
if (newstate & FX_NEW_BLEND)
fxSetupBlend(ctx);
if (newstate & FX_NEW_ALPHA)
fxSetupAlphaTest(ctx);
if (newstate & FX_NEW_DEPTH)
fxSetupDepthTest(ctx);
if (newstate & FX_NEW_FOG)
fxSetupFog(ctx);
if (newstate & FX_NEW_SCISSOR)
fxSetupScissor(ctx);
if (newstate & FX_NEW_COLOR_MASK)
fxSetupColorMask(ctx);
if (newstate & FX_NEW_CULL)
fxSetupCull(ctx);
fxMesa->new_state = 0;
}
}
#else
/*
* Need this to provide at least one external definition.
*/
extern int gl_fx_dummy_function_setup(void);
int
gl_fx_dummy_function_setup(void)
{
return 0;
}
#endif /* FX */