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|
/*
* Mesa 3-D graphics library
* Version: 4.0
*
* Copyright (C) 1999-2001 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.
*/
/* Authors:
* David Bucciarelli
* Brian Paul
* Daryll Strauss
* Keith Whitwell
* Daniel Borca
* Hiroshi Morii
*/
#ifdef HAVE_CONFIG_H
#include "conf.h"
#endif
#if defined(FX)
#include "fxdrv.h"
#include "enums.h"
#include "image.h"
#include "teximage.h"
#include "texformat.h"
#include "texcompress.h"
#include "texobj.h"
#include "texstore.h"
void
fxPrintTextureData(tfxTexInfo * ti)
{
fprintf(stderr, "Texture Data:\n");
if (ti->tObj) {
fprintf(stderr, "\tName: %d\n", ti->tObj->Name);
fprintf(stderr, "\tBaseLevel: %d\n", ti->tObj->BaseLevel);
fprintf(stderr, "\tSize: %d x %d\n",
ti->tObj->Image[0][ti->tObj->BaseLevel]->Width,
ti->tObj->Image[0][ti->tObj->BaseLevel]->Height);
}
else
fprintf(stderr, "\tName: UNNAMED\n");
fprintf(stderr, "\tLast used: %d\n", ti->lastTimeUsed);
fprintf(stderr, "\tTMU: %ld\n", ti->whichTMU);
fprintf(stderr, "\t%s\n", (ti->isInTM) ? "In TMU" : "Not in TMU");
if (ti->tm[0])
fprintf(stderr, "\tMem0: %x-%x\n", (unsigned) ti->tm[0]->startAddr,
(unsigned) ti->tm[0]->endAddr);
if (ti->tm[1])
fprintf(stderr, "\tMem1: %x-%x\n", (unsigned) ti->tm[1]->startAddr,
(unsigned) ti->tm[1]->endAddr);
fprintf(stderr, "\tMipmaps: %d-%d\n", ti->minLevel, ti->maxLevel);
fprintf(stderr, "\tFilters: min %d max %d\n",
(int) ti->minFilt, (int) ti->maxFilt);
fprintf(stderr, "\tClamps: s %d t %d\n", (int) ti->sClamp,
(int) ti->tClamp);
fprintf(stderr, "\tScales: s %f t %f\n", ti->sScale, ti->tScale);
fprintf(stderr, "\t%s\n",
(ti->fixedPalette) ? "Fixed palette" : "Non fixed palette");
fprintf(stderr, "\t%s\n", (ti->validated) ? "Validated" : "Not validated");
}
/************************************************************************/
/*************************** Texture Mapping ****************************/
/************************************************************************/
static void
fxTexInvalidate(GLcontext * ctx, struct gl_texture_object *tObj)
{
fxMesaContext fxMesa = FX_CONTEXT(ctx);
tfxTexInfo *ti;
ti = fxTMGetTexInfo(tObj);
if (ti->isInTM)
fxTMMoveOutTM(fxMesa, tObj); /* TO DO: SLOW but easy to write */
ti->validated = GL_FALSE;
fxMesa->new_state |= FX_NEW_TEXTURING;
}
static tfxTexInfo *
fxAllocTexObjData(fxMesaContext fxMesa)
{
tfxTexInfo *ti;
if (!(ti = CALLOC(sizeof(tfxTexInfo)))) {
fprintf(stderr, "fxAllocTexObjData: ERROR: out of memory !\n");
fxCloseHardware();
exit(-1);
}
ti->validated = GL_FALSE;
ti->isInTM = GL_FALSE;
ti->whichTMU = FX_TMU_NONE;
ti->tm[FX_TMU0] = NULL;
ti->tm[FX_TMU1] = NULL;
ti->minFilt = GR_TEXTUREFILTER_POINT_SAMPLED;
ti->maxFilt = GR_TEXTUREFILTER_BILINEAR;
ti->sClamp = GR_TEXTURECLAMP_WRAP;
ti->tClamp = GR_TEXTURECLAMP_WRAP;
ti->mmMode = GR_MIPMAP_NEAREST;
ti->LODblend = FXFALSE;
return ti;
}
void
fxDDTexBind(GLcontext * ctx, GLenum target, struct gl_texture_object *tObj)
{
fxMesaContext fxMesa = FX_CONTEXT(ctx);
tfxTexInfo *ti;
if (TDFX_DEBUG & VERBOSE_DRIVER) {
fprintf(stderr, "fxDDTexBind(%d, %x)\n", tObj->Name, (GLuint)tObj->DriverData);
}
if ((target != GL_TEXTURE_1D) && (target != GL_TEXTURE_2D))
return;
if (!tObj->DriverData) {
tObj->DriverData = fxAllocTexObjData(fxMesa);
}
ti = fxTMGetTexInfo(tObj);
fxMesa->texBindNumber++;
ti->lastTimeUsed = fxMesa->texBindNumber;
fxMesa->new_state |= FX_NEW_TEXTURING;
}
void
fxDDTexEnv(GLcontext * ctx, GLenum target, GLenum pname,
const GLfloat * param)
{
fxMesaContext fxMesa = FX_CONTEXT(ctx);
if (TDFX_DEBUG & VERBOSE_DRIVER) {
if (param)
fprintf(stderr, "fxDDTexEnv(%x, %x)\n", pname, (GLint) (*param));
else
fprintf(stderr, "fxDDTexEnv(%x)\n", pname);
}
/* apply any lod biasing right now */
if (pname == GL_TEXTURE_LOD_BIAS_EXT) {
GLfloat bias = *param;
CLAMP_SELF(bias, -8.0, 7.75);
grTexLodBiasValue(GR_TMU0, bias);
if (fxMesa->haveTwoTMUs) {
grTexLodBiasValue(GR_TMU1, bias);
}
}
fxMesa->new_state |= FX_NEW_TEXTURING;
}
void
fxDDTexParam(GLcontext * ctx, GLenum target, struct gl_texture_object *tObj,
GLenum pname, const GLfloat * params)
{
fxMesaContext fxMesa = FX_CONTEXT(ctx);
GLenum param = (GLenum) (GLint) params[0];
tfxTexInfo *ti;
if (TDFX_DEBUG & VERBOSE_DRIVER) {
fprintf(stderr, "fxDDTexParam(%d, %x, %s, %s)\n",
tObj->Name, (GLuint) tObj->DriverData,
_mesa_lookup_enum_by_nr(pname),
_mesa_lookup_enum_by_nr(param));
}
if ((target != GL_TEXTURE_1D) && (target != GL_TEXTURE_2D))
return;
if (!tObj->DriverData)
tObj->DriverData = fxAllocTexObjData(fxMesa);
ti = fxTMGetTexInfo(tObj);
switch (pname) {
case GL_TEXTURE_MIN_FILTER:
switch (param) {
case GL_NEAREST:
ti->mmMode = GR_MIPMAP_DISABLE;
ti->minFilt = GR_TEXTUREFILTER_POINT_SAMPLED;
ti->LODblend = FXFALSE;
break;
case GL_LINEAR:
ti->mmMode = GR_MIPMAP_DISABLE;
ti->minFilt = GR_TEXTUREFILTER_BILINEAR;
ti->LODblend = FXFALSE;
break;
case GL_NEAREST_MIPMAP_LINEAR:
/* [koolsmoky]
* trilinear is bugged! mipmap blending produce
* incorrect filtered colors for the smallest mipmap levels.
* [dBorca]
* currently Napalm can't do single-pass trilinear,
* because the way its combiners are set. So we fall back
* to GL_NEAREST_MIPMAP_NEAREST. We'll let true trilinear
* enabled for V2, V3. If user shoots foot, not our problem!
*/
if (!fxMesa->HaveCmbExt) {
if (fxMesa->haveTwoTMUs) {
ti->mmMode = GR_MIPMAP_NEAREST;
ti->LODblend = FXTRUE;
} else {
ti->mmMode = GR_MIPMAP_NEAREST_DITHER;
ti->LODblend = FXFALSE;
}
ti->minFilt = GR_TEXTUREFILTER_POINT_SAMPLED;
break;
}
case GL_NEAREST_MIPMAP_NEAREST:
ti->mmMode = GR_MIPMAP_NEAREST;
ti->minFilt = GR_TEXTUREFILTER_POINT_SAMPLED;
ti->LODblend = FXFALSE;
break;
case GL_LINEAR_MIPMAP_LINEAR:
/* [koolsmoky]
* trilinear is bugged! mipmap blending produce
* incorrect filtered colors for the smallest mipmap levels.
* [dBorca]
* currently Napalm can't do single-pass trilinear,
* because the way its combiners are set. So we fall back
* to GL_LINEAR_MIPMAP_NEAREST. We'll let true trilinear
* enabled for V2, V3. If user shoots foot, not our problem!
*/
if (!fxMesa->HaveCmbExt) {
if (fxMesa->haveTwoTMUs) {
ti->mmMode = GR_MIPMAP_NEAREST;
ti->LODblend = FXTRUE;
} else {
ti->mmMode = GR_MIPMAP_NEAREST_DITHER;
ti->LODblend = FXFALSE;
}
ti->minFilt = GR_TEXTUREFILTER_BILINEAR;
break;
}
case GL_LINEAR_MIPMAP_NEAREST:
ti->mmMode = GR_MIPMAP_NEAREST;
ti->minFilt = GR_TEXTUREFILTER_BILINEAR;
ti->LODblend = FXFALSE;
break;
default:
break;
}
fxTexInvalidate(ctx, tObj);
break;
case GL_TEXTURE_MAG_FILTER:
switch (param) {
case GL_NEAREST:
ti->maxFilt = GR_TEXTUREFILTER_POINT_SAMPLED;
break;
case GL_LINEAR:
ti->maxFilt = GR_TEXTUREFILTER_BILINEAR;
break;
default:
break;
}
fxMesa->new_state |= FX_NEW_TEXTURING;
break;
case GL_TEXTURE_WRAP_S:
switch (param) {
case GL_MIRRORED_REPEAT:
ti->sClamp = GR_TEXTURECLAMP_MIRROR_EXT;
break;
case GL_CLAMP_TO_EDGE: /* CLAMP discarding border */
case GL_CLAMP:
ti->sClamp = GR_TEXTURECLAMP_CLAMP;
break;
case GL_REPEAT:
ti->sClamp = GR_TEXTURECLAMP_WRAP;
break;
default:
break;
}
fxMesa->new_state |= FX_NEW_TEXTURING;
break;
case GL_TEXTURE_WRAP_T:
switch (param) {
case GL_MIRRORED_REPEAT:
ti->tClamp = GR_TEXTURECLAMP_MIRROR_EXT;
break;
case GL_CLAMP_TO_EDGE: /* CLAMP discarding border */
case GL_CLAMP:
ti->tClamp = GR_TEXTURECLAMP_CLAMP;
break;
case GL_REPEAT:
ti->tClamp = GR_TEXTURECLAMP_WRAP;
break;
default:
break;
}
fxMesa->new_state |= FX_NEW_TEXTURING;
break;
case GL_TEXTURE_BORDER_COLOR:
/* TO DO */
break;
case GL_TEXTURE_MIN_LOD:
/* TO DO */
break;
case GL_TEXTURE_MAX_LOD:
/* TO DO */
break;
case GL_TEXTURE_BASE_LEVEL:
fxTexInvalidate(ctx, tObj);
break;
case GL_TEXTURE_MAX_LEVEL:
fxTexInvalidate(ctx, tObj);
break;
default:
break;
}
}
void
fxDDTexDel(GLcontext * ctx, struct gl_texture_object *tObj)
{
fxMesaContext fxMesa = FX_CONTEXT(ctx);
tfxTexInfo *ti = fxTMGetTexInfo(tObj);
if (TDFX_DEBUG & VERBOSE_DRIVER) {
fprintf(stderr, "fxDDTexDel(%d, %p)\n", tObj->Name, (void *) ti);
}
if (!ti)
return;
fxTMFreeTexture(fxMesa, tObj);
FREE(ti);
tObj->DriverData = NULL;
/* Free mipmap images and the texture object itself */
_mesa_delete_texture_object(ctx, tObj);
}
/**
* Allocate a new texture object.
* Called via ctx->Driver.NewTextureObject.
* Note: this function will be called during context creation to
* allocate the default texture objects.
*/
struct gl_texture_object *
fxDDNewTextureObject( GLcontext *ctx, GLuint name, GLenum target )
{
struct gl_texture_object *obj;
obj = _mesa_new_texture_object(ctx, name, target);
return obj;
}
/*
* Return true if texture is resident, false otherwise.
*/
GLboolean
fxDDIsTextureResident(GLcontext *ctx, struct gl_texture_object *tObj)
{
tfxTexInfo *ti = fxTMGetTexInfo(tObj);
return (ti && ti->isInTM);
}
/*
* Convert a gl_color_table texture palette to Glide's format.
*/
static GrTexTable_t
convertPalette(const fxMesaContext fxMesa, FxU32 data[256], const struct gl_color_table *table)
{
const GLubyte *tableUB = (const GLubyte *) table->Table;
GLint width = table->Size;
FxU32 r, g, b, a;
GLint i;
ASSERT(table->Type == GL_UNSIGNED_BYTE);
switch (table->Format) {
case GL_INTENSITY:
for (i = 0; i < width; i++) {
r = tableUB[i];
g = tableUB[i];
b = tableUB[i];
a = tableUB[i];
data[i] = (a << 24) | (r << 16) | (g << 8) | b;
}
return fxMesa->HavePalExt ? GR_TEXTABLE_PALETTE_6666_EXT : GR_TEXTABLE_PALETTE;
case GL_LUMINANCE:
for (i = 0; i < width; i++) {
r = tableUB[i];
g = tableUB[i];
b = tableUB[i];
a = 255;
data[i] = (a << 24) | (r << 16) | (g << 8) | b;
}
return GR_TEXTABLE_PALETTE;
case GL_ALPHA:
for (i = 0; i < width; i++) {
r = g = b = 255;
a = tableUB[i];
data[i] = (a << 24) | (r << 16) | (g << 8) | b;
}
return fxMesa->HavePalExt ? GR_TEXTABLE_PALETTE_6666_EXT : GR_TEXTABLE_PALETTE;
case GL_LUMINANCE_ALPHA:
for (i = 0; i < width; i++) {
r = g = b = tableUB[i * 2 + 0];
a = tableUB[i * 2 + 1];
data[i] = (a << 24) | (r << 16) | (g << 8) | b;
}
return fxMesa->HavePalExt ? GR_TEXTABLE_PALETTE_6666_EXT : GR_TEXTABLE_PALETTE;
default:
case GL_RGB:
for (i = 0; i < width; i++) {
r = tableUB[i * 3 + 0];
g = tableUB[i * 3 + 1];
b = tableUB[i * 3 + 2];
a = 255;
data[i] = (a << 24) | (r << 16) | (g << 8) | b;
}
return GR_TEXTABLE_PALETTE;
case GL_RGBA:
for (i = 0; i < width; i++) {
r = tableUB[i * 4 + 0];
g = tableUB[i * 4 + 1];
b = tableUB[i * 4 + 2];
a = tableUB[i * 4 + 3];
data[i] = (a << 24) | (r << 16) | (g << 8) | b;
}
return fxMesa->HavePalExt ? GR_TEXTABLE_PALETTE_6666_EXT : GR_TEXTABLE_PALETTE;
}
}
void
fxDDTexPalette(GLcontext * ctx, struct gl_texture_object *tObj)
{
fxMesaContext fxMesa = FX_CONTEXT(ctx);
if (tObj) {
/* per-texture palette */
tfxTexInfo *ti;
if (TDFX_DEBUG & VERBOSE_DRIVER) {
fprintf(stderr, "fxDDTexPalette(%d, %x)\n",
tObj->Name, (GLuint) tObj->DriverData);
}
/* This might be a proxy texture. */
if (!tObj->Palette.Table)
return;
if (!tObj->DriverData)
tObj->DriverData = fxAllocTexObjData(fxMesa);
ti = fxTMGetTexInfo(tObj);
ti->paltype = convertPalette(fxMesa, ti->palette.data, &tObj->Palette);
fxTexInvalidate(ctx, tObj);
}
else {
/* global texture palette */
if (TDFX_DEBUG & VERBOSE_DRIVER) {
fprintf(stderr, "fxDDTexPalette(global)\n");
}
fxMesa->glbPalType = convertPalette(fxMesa, fxMesa->glbPalette.data, &ctx->Texture.Palette);
fxMesa->new_state |= FX_NEW_TEXTURING;
grTexDownloadTable(fxMesa->glbPalType, &(fxMesa->glbPalette));
}
}
void
fxDDTexUseGlbPalette(GLcontext * ctx, GLboolean state)
{
fxMesaContext fxMesa = FX_CONTEXT(ctx);
if (TDFX_DEBUG & VERBOSE_DRIVER) {
fprintf(stderr, "fxDDTexUseGlbPalette(%d)\n", state);
}
if (state) {
fxMesa->haveGlobalPaletteTexture = 1;
}
else {
fxMesa->haveGlobalPaletteTexture = 0;
/* [dBorca] tis beyond my comprehension */
if ((ctx->Texture.Unit[0]._Current == ctx->Texture.Unit[0].Current2D) &&
(ctx->Texture.Unit[0]._Current != NULL)) {
struct gl_texture_object *tObj = ctx->Texture.Unit[0]._Current;
if (!tObj->DriverData)
tObj->DriverData = fxAllocTexObjData(fxMesa);
fxTexInvalidate(ctx, tObj);
}
}
}
static int
logbase2(int n)
{
GLint i = 1;
GLint log2 = 0;
if (n < 0) {
return -1;
}
while (n > i) {
i *= 2;
log2++;
}
if (i != n) {
return -1;
}
else {
return log2;
}
}
/* fxTexGetInfo
* w, h - source texture width and height
* lodlevel - Glide lod level token for the larger texture dimension
* ar - Glide aspect ratio token
* sscale - S scale factor used during triangle setup
* tscale - T scale factor used during triangle setup
* wscale - OpenGL -> Glide image width scale factor
* hscale - OpenGL -> Glide image height scale factor
*/
int
fxTexGetInfo(int w, int h, GrLOD_t * lodlevel, GrAspectRatio_t * ar,
float *sscale, float *tscale,
int *wscale, int *hscale)
{
int logw, logh, ws, hs;
GrLOD_t l;
GrAspectRatio_t aspectratio;
float s, t;
logw = logbase2(w);
logh = logbase2(h);
l = MAX2(logw, logh);
aspectratio = logw - logh;
ws = hs = 1;
s = t = 256.0f;
/* hardware only allows a maximum aspect ratio of 8x1, so handle
* |aspectratio| > 3 by scaling the image and using an 8x1 aspect
* ratio
*/
switch (aspectratio) {
case 0:
break;
case 1:
t = 128.0f;
break;
case 2:
t = 64.0f;
break;
case 3:
t = 32.0f;
break;
case -1:
s = 128.0f;
break;
case -2:
s = 64.0f;
break;
case -3:
s = 32.0f;
break;
default:
if (aspectratio > 3) {
t = 32.0f;
hs = 1 << (aspectratio - 3);
aspectratio = GR_ASPECT_LOG2_8x1;
} else /*if (aspectratio < -3)*/ {
s = 32.0f;
ws = 1 << (-aspectratio - 3);
aspectratio = GR_ASPECT_LOG2_1x8;
}
}
if (lodlevel)
(*lodlevel) = l;
if (ar)
(*ar) = aspectratio;
if (sscale)
(*sscale) = s;
if (tscale)
(*tscale) = t;
if (wscale)
(*wscale) = ws;
if (hscale)
(*hscale) = hs;
return 1;
}
static GLboolean
fxIsTexSupported(GLenum target, GLint internalFormat,
const struct gl_texture_image *image)
{
if ((target != GL_TEXTURE_1D) && (target != GL_TEXTURE_2D))
return GL_FALSE;
#if 0
if (!fxTexGetInfo(image->Width, image->Height, NULL, NULL, NULL, NULL, NULL, NULL))
return GL_FALSE;
#endif
if (image->Border > 0)
return GL_FALSE;
return GL_TRUE;
}
/**********************************************************************/
/**** NEW TEXTURE IMAGE FUNCTIONS ****/
/**********************************************************************/
/* Texel-fetch functions for software texturing and glGetTexImage().
* We should have been able to use some "standard" fetch functions (which
* may get defined in texutil.c) but we have to account for scaled texture
* images on tdfx hardware (the 8:1 aspect ratio limit).
* Hence, we need special functions here.
*/
static void
fetch_intensity8(const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLchan *rgba)
{
const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
const GLubyte *texel;
i = i * mml->wScale;
j = j * mml->hScale;
texel = ((GLubyte *) texImage->Data) + j * mml->width + i;
rgba[RCOMP] = *texel;
rgba[GCOMP] = *texel;
rgba[BCOMP] = *texel;
rgba[ACOMP] = *texel;
}
static void
fetch_luminance8(const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLchan *rgba)
{
const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
const GLubyte *texel;
i = i * mml->wScale;
j = j * mml->hScale;
texel = ((GLubyte *) texImage->Data) + j * mml->width + i;
rgba[RCOMP] = *texel;
rgba[GCOMP] = *texel;
rgba[BCOMP] = *texel;
rgba[ACOMP] = 255;
}
static void
fetch_alpha8(const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLchan *rgba)
{
const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
const GLubyte *texel;
i = i * mml->wScale;
j = j * mml->hScale;
texel = ((GLubyte *) texImage->Data) + j * mml->width + i;
rgba[RCOMP] = 255;
rgba[GCOMP] = 255;
rgba[BCOMP] = 255;
rgba[ACOMP] = *texel;
}
static void
fetch_index8(const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLchan *indexOut)
{
const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
const GLubyte *texel;
i = i * mml->wScale;
j = j * mml->hScale;
texel = ((GLubyte *) texImage->Data) + j * mml->width + i;
*indexOut = *texel;
}
static void
fetch_luminance8_alpha8(const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLchan *rgba)
{
const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
const GLubyte *texel;
i = i * mml->wScale;
j = j * mml->hScale;
texel = ((GLubyte *) texImage->Data) + (j * mml->width + i) * 2;
rgba[RCOMP] = texel[0];
rgba[GCOMP] = texel[0];
rgba[BCOMP] = texel[0];
rgba[ACOMP] = texel[1];
}
static void
fetch_r5g6b5(const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLchan *rgba)
{
const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
const GLushort *texel;
i = i * mml->wScale;
j = j * mml->hScale;
texel = ((GLushort *) texImage->Data) + j * mml->width + i;
rgba[RCOMP] = FX_rgb_scale_5[(*texel >> 11) & 0x1F];
rgba[GCOMP] = FX_rgb_scale_6[(*texel >> 5) & 0x3F];
rgba[BCOMP] = FX_rgb_scale_5[ *texel & 0x1F];
rgba[ACOMP] = 255;
}
static void
fetch_r4g4b4a4(const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLchan *rgba)
{
const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
const GLushort *texel;
i = i * mml->wScale;
j = j * mml->hScale;
texel = ((GLushort *) texImage->Data) + j * mml->width + i;
rgba[RCOMP] = FX_rgb_scale_4[(*texel >> 12) & 0xF];
rgba[GCOMP] = FX_rgb_scale_4[(*texel >> 8) & 0xF];
rgba[BCOMP] = FX_rgb_scale_4[(*texel >> 4) & 0xF];
rgba[ACOMP] = FX_rgb_scale_4[ *texel & 0xF];
}
static void
fetch_r5g5b5a1(const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLchan *rgba)
{
const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
const GLushort *texel;
i = i * mml->wScale;
j = j * mml->hScale;
texel = ((GLushort *) texImage->Data) + j * mml->width + i;
rgba[RCOMP] = FX_rgb_scale_5[(*texel >> 11) & 0x1F];
rgba[GCOMP] = FX_rgb_scale_5[(*texel >> 6) & 0x1F];
rgba[BCOMP] = FX_rgb_scale_5[(*texel >> 1) & 0x1F];
rgba[ACOMP] = ((*texel) & 0x01) * 255;
}
static void
fetch_a8r8g8b8(const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLchan *rgba)
{
const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
const GLuint *texel;
i = i * mml->wScale;
j = j * mml->hScale;
texel = ((GLuint *) texImage->Data) + j * mml->width + i;
rgba[RCOMP] = (((*texel) >> 16) & 0xff);
rgba[GCOMP] = (((*texel) >> 8) & 0xff);
rgba[BCOMP] = (((*texel) ) & 0xff);
rgba[ACOMP] = (((*texel) >> 24) & 0xff);
}
static void
fetch_rgb_fxt1(const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLchan *rgba)
{
const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
i = i * mml->wScale;
j = j * mml->hScale;
_mesa_texformat_rgb_fxt1.FetchTexel2D(texImage, i, j, k, rgba);
}
static void
fetch_rgba_fxt1(const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLchan *rgba)
{
const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
i = i * mml->wScale;
j = j * mml->hScale;
_mesa_texformat_rgba_fxt1.FetchTexel2D(texImage, i, j, k, rgba);
}
static void
fetch_rgb_dxt1(const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLchan *rgba)
{
const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
i = i * mml->wScale;
j = j * mml->hScale;
_mesa_texformat_rgb_dxt1.FetchTexel2D(texImage, i, j, k, rgba);
}
static void
fetch_rgba_dxt1(const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLchan *rgba)
{
const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
i = i * mml->wScale;
j = j * mml->hScale;
_mesa_texformat_rgba_dxt1.FetchTexel2D(texImage, i, j, k, rgba);
}
static void
fetch_rgba_dxt3(const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLchan *rgba)
{
const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
i = i * mml->wScale;
j = j * mml->hScale;
_mesa_texformat_rgba_dxt3.FetchTexel2D(texImage, i, j, k, rgba);
}
static void
fetch_rgba_dxt5(const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLchan *rgba)
{
const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
i = i * mml->wScale;
j = j * mml->hScale;
_mesa_texformat_rgba_dxt5.FetchTexel2D(texImage, i, j, k, rgba);
}
static void
PrintTexture(int w, int h, int c, const GLubyte * data)
{
int i, j;
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
if (c == 2)
fprintf(stderr, "%02x %02x ", data[0], data[1]);
else if (c == 3)
fprintf(stderr, "%02x %02x %02x ", data[0], data[1], data[2]);
data += c;
}
fprintf(stderr, "\n");
}
}
GLuint fxDDCompressedTextureSize (GLcontext *ctx,
GLsizei width, GLsizei height, GLsizei depth,
GLenum format)
{
int wScale, hScale;
ASSERT(depth == 1);
/* Determine width and height scale factors for texture.
* Remember, Glide is limited to 8:1 aspect ratios.
*/
fxTexGetInfo(width, height,
NULL, /* lod level */
NULL, /* aspect ratio */
NULL, NULL, /* sscale, tscale */
&wScale, &hScale);
return _mesa_compressed_texture_size(ctx,
width * wScale,
height * hScale,
depth,
format);
}
const struct gl_texture_format *
fxDDChooseTextureFormat( GLcontext *ctx, GLint internalFormat,
GLenum srcFormat, GLenum srcType )
{
fxMesaContext fxMesa = FX_CONTEXT(ctx);
GLboolean allow32bpt = fxMesa->HaveTexFmt;
if (TDFX_DEBUG & VERBOSE_TEXTURE) {
fprintf(stderr, "fxDDChooseTextureFormat(...)\n");
}
switch (internalFormat) {
case GL_COMPRESSED_RGB:
#if FX_TC_NCC
if (fxMesa->HaveTexus2) {
return &_mesa_texformat_argb8888;
}
#endif
/* intentional fall through */
case 3:
case GL_RGB:
if ( srcFormat == GL_RGB && srcType == GL_UNSIGNED_SHORT_5_6_5 ) {
return &_mesa_texformat_rgb565;
}
/* intentional fall through */
case GL_RGB8:
case GL_RGB10:
case GL_RGB12:
case GL_RGB16:
return (allow32bpt) ? &_mesa_texformat_argb8888
: &_mesa_texformat_rgb565;
case GL_RGBA2:
case GL_RGBA4:
return &_mesa_texformat_argb4444;
case GL_COMPRESSED_RGBA:
#if FX_TC_NCC
if (fxMesa->HaveTexus2) {
return &_mesa_texformat_argb8888;
}
#endif
/* intentional fall through */
case 4:
case GL_RGBA:
if ( srcFormat == GL_BGRA ) {
if ( srcType == GL_UNSIGNED_INT_8_8_8_8_REV ) {
return &_mesa_texformat_argb8888;
}
else if ( srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV ) {
return &_mesa_texformat_argb4444;
}
else if ( srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV ) {
return &_mesa_texformat_argb1555;
}
}
/* intentional fall through */
case GL_RGBA8:
case GL_RGB10_A2:
case GL_RGBA12:
case GL_RGBA16:
return (allow32bpt) ? &_mesa_texformat_argb8888
: &_mesa_texformat_argb4444;
case GL_INTENSITY:
case GL_INTENSITY4:
case GL_INTENSITY8:
case GL_INTENSITY12:
case GL_INTENSITY16:
case GL_COMPRESSED_INTENSITY:
return &_mesa_texformat_i8;
case 1:
case GL_LUMINANCE:
case GL_LUMINANCE4:
case GL_LUMINANCE8:
case GL_LUMINANCE12:
case GL_LUMINANCE16:
case GL_COMPRESSED_LUMINANCE:
return &_mesa_texformat_l8;
case GL_ALPHA:
case GL_ALPHA4:
case GL_ALPHA8:
case GL_ALPHA12:
case GL_ALPHA16:
case GL_COMPRESSED_ALPHA:
return &_mesa_texformat_a8;
case GL_COLOR_INDEX:
case GL_COLOR_INDEX1_EXT:
case GL_COLOR_INDEX2_EXT:
case GL_COLOR_INDEX4_EXT:
case GL_COLOR_INDEX8_EXT:
case GL_COLOR_INDEX12_EXT:
case GL_COLOR_INDEX16_EXT:
return &_mesa_texformat_ci8;
case 2:
case GL_LUMINANCE_ALPHA:
case GL_LUMINANCE4_ALPHA4:
case GL_LUMINANCE6_ALPHA2:
case GL_LUMINANCE8_ALPHA8:
case GL_LUMINANCE12_ALPHA4:
case GL_LUMINANCE12_ALPHA12:
case GL_LUMINANCE16_ALPHA16:
case GL_COMPRESSED_LUMINANCE_ALPHA:
return &_mesa_texformat_al88;
case GL_R3_G3_B2:
case GL_RGB4:
case GL_RGB5:
return &_mesa_texformat_rgb565;
case GL_RGB5_A1:
return &_mesa_texformat_argb1555;
/* GL_EXT_texture_compression_s3tc */
/* GL_S3_s3tc */
case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
case GL_RGB_S3TC:
case GL_RGB4_S3TC:
return &_mesa_texformat_rgb_dxt1;
case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
return &_mesa_texformat_rgba_dxt1;
case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
case GL_RGBA_S3TC:
case GL_RGBA4_S3TC:
return &_mesa_texformat_rgba_dxt3;
case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
return &_mesa_texformat_rgba_dxt5;
/* GL_3DFX_texture_compression_FXT1 */
case GL_COMPRESSED_RGB_FXT1_3DFX:
return &_mesa_texformat_rgb_fxt1;
case GL_COMPRESSED_RGBA_FXT1_3DFX:
return &_mesa_texformat_rgba_fxt1;
default:
_mesa_problem(NULL, "unexpected format in fxDDChooseTextureFormat");
return NULL;
}
}
static GrTextureFormat_t
fxGlideFormat(GLint mesaFormat)
{
switch (mesaFormat) {
case MESA_FORMAT_I8:
return GR_TEXFMT_ALPHA_8;
case MESA_FORMAT_A8:
return GR_TEXFMT_ALPHA_8;
case MESA_FORMAT_L8:
return GR_TEXFMT_INTENSITY_8;
case MESA_FORMAT_CI8:
return GR_TEXFMT_P_8;
case MESA_FORMAT_AL88:
return GR_TEXFMT_ALPHA_INTENSITY_88;
case MESA_FORMAT_RGB565:
return GR_TEXFMT_RGB_565;
case MESA_FORMAT_ARGB4444:
return GR_TEXFMT_ARGB_4444;
case MESA_FORMAT_ARGB1555:
return GR_TEXFMT_ARGB_1555;
case MESA_FORMAT_ARGB8888:
return GR_TEXFMT_ARGB_8888;
case MESA_FORMAT_RGB_FXT1:
case MESA_FORMAT_RGBA_FXT1:
return GR_TEXFMT_ARGB_CMP_FXT1;
case MESA_FORMAT_RGB_DXT1:
case MESA_FORMAT_RGBA_DXT1:
return GR_TEXFMT_ARGB_CMP_DXT1;
case MESA_FORMAT_RGBA_DXT3:
return GR_TEXFMT_ARGB_CMP_DXT3;
case MESA_FORMAT_RGBA_DXT5:
return GR_TEXFMT_ARGB_CMP_DXT5;
default:
_mesa_problem(NULL, "Unexpected format in fxGlideFormat");
return 0;
}
}
static FetchTexelFuncC
fxFetchFunction(GLint mesaFormat)
{
switch (mesaFormat) {
case MESA_FORMAT_I8:
return &fetch_intensity8;
case MESA_FORMAT_A8:
return &fetch_alpha8;
case MESA_FORMAT_L8:
return &fetch_luminance8;
case MESA_FORMAT_CI8:
return &fetch_index8;
case MESA_FORMAT_AL88:
return &fetch_luminance8_alpha8;
case MESA_FORMAT_RGB565:
return &fetch_r5g6b5;
case MESA_FORMAT_ARGB4444:
return &fetch_r4g4b4a4;
case MESA_FORMAT_ARGB1555:
return &fetch_r5g5b5a1;
case MESA_FORMAT_ARGB8888:
return &fetch_a8r8g8b8;
case MESA_FORMAT_RGB_FXT1:
return &fetch_rgb_fxt1;
case MESA_FORMAT_RGBA_FXT1:
return &fetch_rgba_fxt1;
case MESA_FORMAT_RGB_DXT1:
return &fetch_rgb_dxt1;
case MESA_FORMAT_RGBA_DXT1:
return &fetch_rgba_dxt1;
case MESA_FORMAT_RGBA_DXT3:
return &fetch_rgba_dxt3;
case MESA_FORMAT_RGBA_DXT5:
return &fetch_rgba_dxt5;
default:
_mesa_problem(NULL, "Unexpected format in fxFetchFunction");
return NULL;
}
}
static GLboolean
adjust2DRatio (GLcontext *ctx,
GLint xoffset, GLint yoffset,
GLint width, GLint height,
GLenum format, GLenum type, const GLvoid *pixels,
const struct gl_pixelstore_attrib *packing,
tfxMipMapLevel *mml,
struct gl_texture_image *texImage,
GLint texelBytes,
GLint dstRowStride)
{
const GLint newWidth = width * mml->wScale;
const GLint newHeight = height * mml->hScale;
GLvoid *tempImage;
if (!texImage->IsCompressed) {
GLubyte *destAddr;
tempImage = MALLOC(width * height * texelBytes);
if (!tempImage) {
return GL_FALSE;
}
texImage->TexFormat->StoreImage(ctx, 2, texImage->Format,
texImage->TexFormat, tempImage,
0, 0, 0, /* dstX/Y/Zoffset */
width * texelBytes, /* dstRowStride */
0, /* dstImageStride */
width, height, 1,
format, type, pixels, packing);
/* now rescale */
/* compute address of dest subimage within the overal tex image */
destAddr = (GLubyte *) texImage->Data
+ (yoffset * mml->hScale * mml->width
+ xoffset * mml->wScale) * texelBytes;
_mesa_rescale_teximage2d(texelBytes,
dstRowStride, /* dst stride */
width, height,
newWidth, newHeight,
tempImage, destAddr);
} else {
const GLint rawBytes = 4;
GLvoid *rawImage = MALLOC(width * height * rawBytes);
if (!rawImage) {
return GL_FALSE;
}
tempImage = MALLOC(newWidth * newHeight * rawBytes);
if (!tempImage) {
return GL_FALSE;
}
/* unpack image, apply transfer ops and store in rawImage */
_mesa_texstore_argb8888(ctx, 2, GL_RGBA,
&_mesa_texformat_argb8888, rawImage,
0, 0, 0, /* dstX/Y/Zoffset */
width * rawBytes, /* dstRowStride */
0, /* dstImageStride */
width, height, 1,
format, type, pixels, packing);
_mesa_rescale_teximage2d(rawBytes,
newWidth * rawBytes, /* dst stride */
width, height, /* src */
newWidth, newHeight, /* dst */
rawImage /*src*/, tempImage /*dst*/ );
texImage->TexFormat->StoreImage(ctx, 2, texImage->Format,
texImage->TexFormat, texImage->Data,
xoffset * mml->wScale, yoffset * mml->hScale, 0, /* dstX/Y/Zoffset */
dstRowStride,
0, /* dstImageStride */
newWidth, newHeight, 1,
GL_BGRA, CHAN_TYPE, tempImage, &ctx->DefaultPacking);
FREE(rawImage);
}
FREE(tempImage);
return GL_TRUE;
}
void
fxDDTexImage2D(GLcontext * ctx, GLenum target, GLint level,
GLint internalFormat, GLint width, GLint height, GLint border,
GLenum format, GLenum type, const GLvoid * pixels,
const struct gl_pixelstore_attrib *packing,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage)
{
fxMesaContext fxMesa = FX_CONTEXT(ctx);
tfxTexInfo *ti;
tfxMipMapLevel *mml;
GLint texelBytes, dstRowStride;
if (TDFX_DEBUG & VERBOSE_TEXTURE) {
fprintf(stderr, "fxDDTexImage2D: id=%d int 0x%x format 0x%x type 0x%x %dx%d\n",
texObj->Name, texImage->IntFormat, format, type,
texImage->Width, texImage->Height);
}
if (!fxIsTexSupported(target, internalFormat, texImage)) {
_mesa_problem(NULL, "fx Driver: unsupported texture in fxDDTexImg()\n");
return;
}
if (!texObj->DriverData) {
texObj->DriverData = fxAllocTexObjData(fxMesa);
if (!texObj->DriverData) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
return;
}
}
ti = fxTMGetTexInfo(texObj);
if (!texImage->DriverData) {
texImage->DriverData = CALLOC(sizeof(tfxMipMapLevel));
if (!texImage->DriverData) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
return;
}
}
mml = FX_MIPMAP_DATA(texImage);
fxTexGetInfo(width, height, NULL, NULL, NULL, NULL,
&mml->wScale, &mml->hScale);
mml->width = width * mml->wScale;
mml->height = height * mml->hScale;
#if FX_COMPRESS_S3TC_AS_FXT1_HACK
/* [koolsmoky] substitute FXT1 for DXTn and Legacy S3TC */
/* [dBorca] we should update texture's attribute, then,
* because if the application asks us to decompress, we
* have to know the REAL format! Also, DXT3/5 might not
* be correct, since it would mess with "compressedSize".
* Ditto for GL_RGBA[4]_S3TC, which is always mapped to DXT3.
*/
if (texImage->IsCompressed) {
switch (internalFormat) {
case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
case GL_RGB_S3TC:
case GL_RGB4_S3TC:
internalFormat = GL_COMPRESSED_RGB_FXT1_3DFX;
break;
case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
case GL_RGBA_S3TC:
case GL_RGBA4_S3TC:
texImage->CompressedSize /= 2;
case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
internalFormat = GL_COMPRESSED_RGBA_FXT1_3DFX;
}
texImage->IntFormat = internalFormat;
}
#endif
#if FX_TC_NAPALM
if (fxMesa->type >= GR_SSTTYPE_Voodoo4) {
GLenum texNapalm = 0;
if (internalFormat == GL_COMPRESSED_RGB) {
texNapalm = GL_COMPRESSED_RGB_FXT1_3DFX;
} else if (internalFormat == GL_COMPRESSED_RGBA) {
texNapalm = GL_COMPRESSED_RGBA_FXT1_3DFX;
}
if (texNapalm) {
texImage->IntFormat = internalFormat = texNapalm;
texImage->IsCompressed = GL_TRUE;
texImage->CompressedSize = _mesa_compressed_texture_size(ctx,
mml->width,
mml->height,
1,
texNapalm);
}
}
#endif
/* choose the texture format */
assert(ctx->Driver.ChooseTextureFormat);
texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
internalFormat, format, type);
assert(texImage->TexFormat);
texelBytes = texImage->TexFormat->TexelBytes;
/*if (!fxMesa->HaveTexFmt) assert(texelBytes == 1 || texelBytes == 2);*/
mml->glideFormat = fxGlideFormat(texImage->TexFormat->MesaFormat);
/* allocate mipmap buffer */
assert(!texImage->Data);
if (texImage->IsCompressed) {
dstRowStride = _mesa_compressed_row_stride(texImage->IntFormat, mml->width);
texImage->Data = MESA_PBUFFER_ALLOC(texImage->CompressedSize);
} else {
dstRowStride = mml->width * texelBytes;
texImage->Data = MESA_PBUFFER_ALLOC(mml->width * mml->height * texelBytes);
}
if (!texImage->Data) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
return;
}
if (mml->wScale != 1 || mml->hScale != 1) {
/* rescale image to overcome 1:8 aspect limitation */
if (!adjust2DRatio(ctx,
0, 0,
width, height,
format, type, pixels,
packing,
mml,
texImage,
texelBytes,
dstRowStride)
) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
return;
}
}
else {
/* no rescaling needed */
/* unpack image, apply transfer ops and store in texImage->Data */
texImage->TexFormat->StoreImage(ctx, 2, texImage->Format,
texImage->TexFormat, texImage->Data,
0, 0, 0, /* dstX/Y/Zoffset */
dstRowStride,
0, /* dstImageStride */
width, height, 1,
format, type, pixels, packing);
}
#if FX_TC_NCC
if (fxMesa->HaveTexus2) {
GLenum texNCC = 0;
GLuint texSize = mml->width * mml->height;
if (internalFormat == GL_COMPRESSED_RGB) {
texNCC = GR_TEXFMT_YIQ_422;
} else if (internalFormat == GL_COMPRESSED_RGBA) {
texNCC = GR_TEXFMT_AYIQ_8422;
texSize <<= 1;
}
if (texNCC) {
TxMip txMip, pxMip;
GLubyte *tempImage = MESA_PBUFFER_ALLOC(texSize);
if (!tempImage) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
return;
}
txMip.width = mml->width;
txMip.height = mml->height;
txMip.depth = 1;
txMip.data[0] = texImage->Data;
pxMip.data[0] = tempImage;
fxMesa->Glide.txMipQuantize(&pxMip, &txMip, texNCC, TX_DITHER_ERR, TX_COMPRESSION_HEURISTIC);
if (level == 0) {
fxMesa->Glide.txPalToNcc((GuNccTable *)(&(ti->palette)), pxMip.pal);
}
MESA_PBUFFER_FREE(texImage->Data);
texImage->Data = tempImage;
mml->glideFormat = texNCC;
}
}
#endif
ti->info.format = mml->glideFormat;
texImage->FetchTexelc = fxFetchFunction(texImage->TexFormat->MesaFormat);
/* [dBorca] take care of aspectratio */
#if 0
/* GL_SGIS_generate_mipmap */
if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
_mesa_generate_mipmap(ctx, target,
&ctx->Texture.Unit[ctx->Texture.CurrentUnit],
texObj);
}
#endif
/* [dBorca]
* Hack alert: unsure...
*/
if (0 && ti->validated && ti->isInTM) {
/*fprintf(stderr, "reloadmipmaplevels\n"); */
fxTMReloadMipMapLevel(fxMesa, texObj, level);
}
else {
/*fprintf(stderr, "invalidate2\n"); */
fxTexInvalidate(ctx, texObj);
}
}
void
fxDDTexSubImage2D(GLcontext * ctx, GLenum target, GLint level,
GLint xoffset, GLint yoffset,
GLsizei width, GLsizei height,
GLenum format, GLenum type, const GLvoid * pixels,
const struct gl_pixelstore_attrib *packing,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage)
{
fxMesaContext fxMesa = FX_CONTEXT(ctx);
tfxTexInfo *ti;
tfxMipMapLevel *mml;
GLint texelBytes, dstRowStride;
/* [dBorca] Hack alert:
* FX_TC_NCC not supported
*/
if (TDFX_DEBUG & VERBOSE_TEXTURE) {
fprintf(stderr, "fxDDTexSubImage2D: id=%d\n", texObj->Name);
}
if (!texObj->DriverData) {
_mesa_problem(ctx, "problem in fxDDTexSubImage2D");
return;
}
ti = fxTMGetTexInfo(texObj);
assert(ti);
mml = FX_MIPMAP_DATA(texImage);
assert(mml);
assert(texImage->Data); /* must have an existing texture image! */
assert(texImage->Format);
texelBytes = texImage->TexFormat->TexelBytes;
if (texImage->IsCompressed) {
dstRowStride = _mesa_compressed_row_stride(texImage->IntFormat, mml->width);
} else {
dstRowStride = mml->width * texelBytes;
}
if (mml->wScale != 1 || mml->hScale != 1) {
/* need to rescale subimage to match mipmap level's rescale factors */
if (!adjust2DRatio(ctx,
xoffset, yoffset,
width, height,
format, type, pixels,
packing,
mml,
texImage,
texelBytes,
dstRowStride)
) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage2D");
return;
}
}
else {
/* no rescaling needed */
texImage->TexFormat->StoreImage(ctx, 2, texImage->Format,
texImage->TexFormat, (GLubyte *) texImage->Data,
xoffset, yoffset, 0, /* dstX/Y/Zoffset */
dstRowStride,
0, /* dstImageStride */
width, height, 1,
format, type, pixels, packing);
}
/* [dBorca]
* Hack alert: unsure...
*/
if (0 && ti->validated && ti->isInTM)
fxTMReloadMipMapLevel(fxMesa, texObj, level);
else
fxTexInvalidate(ctx, texObj);
}
void
fxDDCompressedTexImage2D (GLcontext *ctx, GLenum target,
GLint level, GLint internalFormat,
GLsizei width, GLsizei height, GLint border,
GLsizei imageSize, const GLvoid *data,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage)
{
fxMesaContext fxMesa = FX_CONTEXT(ctx);
tfxTexInfo *ti;
tfxMipMapLevel *mml;
if (TDFX_DEBUG & VERBOSE_TEXTURE) {
fprintf(stderr, "fxDDCompressedTexImage2D: id=%d int 0x%x %dx%d\n",
texObj->Name, internalFormat,
width, height);
}
assert(texImage->IsCompressed);
if (!fxIsTexSupported(target, internalFormat, texImage)) {
_mesa_problem(NULL, "fx Driver: unsupported texture in fxDDCompressedTexImg()\n");
return;
}
if (!texObj->DriverData) {
texObj->DriverData = fxAllocTexObjData(fxMesa);
if (!texObj->DriverData) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2D");
return;
}
}
ti = fxTMGetTexInfo(texObj);
if (!texImage->DriverData) {
texImage->DriverData = CALLOC(sizeof(tfxMipMapLevel));
if (!texImage->DriverData) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
return;
}
}
mml = FX_MIPMAP_DATA(texImage);
fxTexGetInfo(width, height, NULL, NULL, NULL, NULL,
&mml->wScale, &mml->hScale);
mml->width = width * mml->wScale;
mml->height = height * mml->hScale;
/* choose the texture format */
assert(ctx->Driver.ChooseTextureFormat);
texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
internalFormat, -1/*format*/, -1/*type*/);
assert(texImage->TexFormat);
/* Determine the appropriate Glide texel format,
* given the user's internal texture format hint.
*/
mml->glideFormat = fxGlideFormat(texImage->TexFormat->MesaFormat);
/* allocate new storage for texture image, if needed */
if (!texImage->Data) {
texImage->Data = MESA_PBUFFER_ALLOC(imageSize);
if (!texImage->Data) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
return;
}
}
/* save the texture data */
MEMCPY(texImage->Data, data, imageSize);
/* [dBorca] Hack alert:
* in order to account for apect ratio and other anomalies,
* we would need to decompress the image. Note, however that
* certain rescaling factors (x4, x8) can be treated simpler
* if they match the compressed texture microtile size.
* Cheeky idea: use textureBuffer to decompress in hardware!
*/
ti->info.format = mml->glideFormat;
texImage->FetchTexelc = fxFetchFunction(texImage->TexFormat->MesaFormat);
/* [dBorca] take care of aspectratio */
#if 0
/* GL_SGIS_generate_mipmap */
if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
_mesa_generate_mipmap(ctx, target,
&ctx->Texture.Unit[ctx->Texture.CurrentUnit],
texObj);
}
#endif
/* [dBorca]
* Hack alert: unsure...
*/
if (0 && ti->validated && ti->isInTM) {
/*fprintf(stderr, "reloadmipmaplevels\n"); */
fxTMReloadMipMapLevel(fxMesa, texObj, level);
}
else {
/*fprintf(stderr, "invalidate2\n"); */
fxTexInvalidate(ctx, texObj);
}
}
void
fxDDCompressedTexSubImage2D( GLcontext *ctx, GLenum target,
GLint level, GLint xoffset,
GLint yoffset, GLsizei width,
GLint height, GLenum format,
GLsizei imageSize, const GLvoid *data,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage )
{
fxMesaContext fxMesa = FX_CONTEXT(ctx);
tfxTexInfo *ti;
tfxMipMapLevel *mml;
GLint destRowStride, srcRowStride;
GLint i, rows;
GLubyte *dest;
if (TDFX_DEBUG & VERBOSE_TEXTURE) {
fprintf(stderr, "fxDDCompressedTexSubImage2D: id=%d\n", texObj->Name);
}
ti = fxTMGetTexInfo(texObj);
assert(ti);
mml = FX_MIPMAP_DATA(texImage);
assert(mml);
srcRowStride = _mesa_compressed_row_stride(texImage->IntFormat, width);
destRowStride = _mesa_compressed_row_stride(texImage->IntFormat,
texImage->Width);
dest = _mesa_compressed_image_address(xoffset, yoffset, 0,
texImage->IntFormat,
texImage->Width,
(GLubyte*) texImage->Data);
rows = height / 4; /* [dBorca] hardcoded 4, but works for FXT1/DXTC */
for (i = 0; i < rows; i++) {
MEMCPY(dest, data, srcRowStride);
dest += destRowStride;
data = (GLvoid *)((GLuint)data + (GLuint)srcRowStride);
}
/* [dBorca] Hack alert:
* see fxDDCompressedTexImage2D for caveats
*/
/* [dBorca]
* Hack alert: unsure...
*/
if (0 && ti->validated && ti->isInTM)
fxTMReloadMipMapLevel(fxMesa, texObj, level);
else
fxTexInvalidate(ctx, texObj);
}
void
fxDDTexImage1D (GLcontext *ctx, GLenum target, GLint level,
GLint internalFormat, GLint width, GLint border,
GLenum format, GLenum type, const GLvoid *pixels,
const struct gl_pixelstore_attrib *packing,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage)
{
fxDDTexImage2D(ctx, target, level,
internalFormat, width, 1, border,
format, type, pixels,
packing,
texObj,
texImage);
}
void
fxDDTexSubImage1D(GLcontext * ctx, GLenum target, GLint level,
GLint xoffset,
GLsizei width,
GLenum format, GLenum type, const GLvoid * pixels,
const struct gl_pixelstore_attrib *packing,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage)
{
fxDDTexSubImage2D(ctx, target, level,
xoffset, 0, width, 1,
format, type, pixels,
packing,
texObj,
texImage);
}
GLboolean
fxDDTestProxyTexImage (GLcontext *ctx, GLenum target,
GLint level, GLint internalFormat,
GLenum format, GLenum type,
GLint width, GLint height,
GLint depth, GLint border)
{
/* [dBorca]
* TODO - maybe through fxTexValidate()
*/
return _mesa_test_proxy_teximage(ctx, target,
level, internalFormat,
format, type,
width, height,
depth, border);
}
#else /* FX */
/*
* Need this to provide at least one external definition.
*/
extern int gl_fx_dummy_function_ddtex(void);
int
gl_fx_dummy_function_ddtex(void)
{
return 0;
}
#endif /* FX */
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