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Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/glide/fxddtex.c')
-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/glide/fxddtex.c1849
1 files changed, 1849 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/glide/fxddtex.c b/nx-X11/extras/Mesa/src/mesa/drivers/glide/fxddtex.c
new file mode 100644
index 000000000..f3f12c4cc
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/glide/fxddtex.c
@@ -0,0 +1,1849 @@
+/*
+ * 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"
+
+
+/* no borders! can't halve 1x1! (stride > width * comp) not allowed */
+static void
+_mesa_halve2x2_teximage2d ( GLcontext *ctx,
+ struct gl_texture_image *texImage,
+ GLuint bytesPerPixel,
+ GLint srcWidth, GLint srcHeight,
+ const GLvoid *srcImage, GLvoid *dstImage )
+{
+ GLint i, j, k;
+ GLint dstWidth = srcWidth / 2;
+ GLint dstHeight = srcHeight / 2;
+ GLint srcRowStride = srcWidth * bytesPerPixel;
+ GLubyte *src = (GLubyte *)srcImage;
+ GLubyte *dst = dstImage;
+
+ GLuint bpt = 0;
+ GLubyte *_s = NULL;
+ GLubyte *_d = NULL;
+ GLenum _t = 0;
+
+ if (texImage->TexFormat->MesaFormat == MESA_FORMAT_RGB565) {
+ _t = GL_UNSIGNED_SHORT_5_6_5_REV;
+ bpt = bytesPerPixel;
+ } else if (texImage->TexFormat->MesaFormat == MESA_FORMAT_ARGB4444) {
+ _t = GL_UNSIGNED_SHORT_4_4_4_4_REV;
+ bpt = bytesPerPixel;
+ } else if (texImage->TexFormat->MesaFormat == MESA_FORMAT_ARGB1555) {
+ _t = GL_UNSIGNED_SHORT_1_5_5_5_REV;
+ bpt = bytesPerPixel;
+ }
+ if (bpt) {
+ bytesPerPixel = 4;
+ srcRowStride = srcWidth * bytesPerPixel;
+ if (dstWidth == 0) {
+ dstWidth = 1;
+ }
+ if (dstHeight == 0) {
+ dstHeight = 1;
+ }
+ _s = src = MALLOC(srcRowStride * srcHeight);
+ _d = dst = MALLOC(dstWidth * bytesPerPixel * dstHeight);
+ _mesa_texstore_rgba8888(ctx, 2, GL_RGBA,
+ &_mesa_texformat_rgba8888_rev, src,
+ 0, 0, 0, /* dstX/Y/Zoffset */
+ srcRowStride, /* dstRowStride */
+ 0, /* dstImageStride */
+ srcWidth, srcHeight, 1,
+ texImage->Format, _t, srcImage, &ctx->DefaultPacking);
+ }
+
+ if (srcHeight == 1) {
+ for (i = 0; i < dstWidth; i++) {
+ for (k = 0; k < bytesPerPixel; k++) {
+ dst[0] = (src[0] + src[bytesPerPixel] + 1) / 2;
+ src++;
+ dst++;
+ }
+ src += bytesPerPixel;
+ }
+ } else if (srcWidth == 1) {
+ for (j = 0; j < dstHeight; j++) {
+ for (k = 0; k < bytesPerPixel; k++) {
+ dst[0] = (src[0] + src[srcRowStride] + 1) / 2;
+ src++;
+ dst++;
+ }
+ src += srcRowStride;
+ }
+ } else {
+ for (j = 0; j < dstHeight; j++) {
+ for (i = 0; i < dstWidth; i++) {
+ for (k = 0; k < bytesPerPixel; k++) {
+ dst[0] = (src[0] +
+ src[bytesPerPixel] +
+ src[srcRowStride] +
+ src[srcRowStride + bytesPerPixel] + 2) / 4;
+ src++;
+ dst++;
+ }
+ src += bytesPerPixel;
+ }
+ src += srcRowStride;
+ }
+ }
+
+ if (bpt) {
+ src = _s;
+ dst = _d;
+ texImage->TexFormat->StoreImage(ctx, 2, texImage->Format,
+ texImage->TexFormat, dstImage,
+ 0, 0, 0, /* dstX/Y/Zoffset */
+ dstWidth * bpt,
+ 0, /* dstImageStride */
+ dstWidth, dstHeight, 1,
+ GL_BGRA, CHAN_TYPE, dst, &ctx->DefaultPacking);
+ FREE(dst);
+ FREE(src);
+ }
+}
+
+
+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, -ctx->Const.MaxTextureLodBias,
+ ctx->Const.MaxTextureLodBias - 0.25);
+
+ 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:
+ /* [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 (!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:
+ /* [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 (!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_BORDER: /* no-no, but don't REPEAT, either */
+ 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_BORDER: /* no-no, but don't REPEAT, either */
+ 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);
+ }
+
+ fxMesa->haveGlobalPaletteTexture = state;
+ fxMesa->new_state |= FX_NEW_TEXTURING;
+}
+
+
+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 ****/
+/**********************************************************************/
+extern void
+fxt1_decode_1 (const void *texture, int width,
+ int i, int j, unsigned char *rgba);
+
+/* 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 >> 8) & 0xF];
+ rgba[GCOMP] = FX_rgb_scale_4[(*texel >> 4) & 0xF];
+ rgba[BCOMP] = FX_rgb_scale_4[ *texel & 0xF];
+ rgba[ACOMP] = FX_rgb_scale_4[(*texel >> 12) & 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 >> 10) & 0x1F];
+ rgba[GCOMP] = FX_rgb_scale_5[(*texel >> 5) & 0x1F];
+ rgba[BCOMP] = FX_rgb_scale_5[ *texel & 0x1F];
+ rgba[ACOMP] = (*texel >> 15) * 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;
+
+ fxt1_decode_1(texImage->Data, mml->width, i, j, rgba);
+ rgba[ACOMP] = 255;
+}
+
+
+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;
+
+ fxt1_decode_1(texImage->Data, mml->width, i, j, 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);
+}
+
+
+#if 0 /* break glass in case of emergency */
+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");
+ }
+}
+#endif
+
+
+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:
+ /* 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:
+ /* 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,
+ width,
+ 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_rgba8888(ctx, 2, GL_RGBA,
+ &_mesa_texformat_rgba8888_rev, rawImage,
+ 0, 0, 0, /* dstX/Y/Zoffset */
+ width * rawBytes, /* dstRowStride */
+ 0, /* dstImageStride */
+ width, height, 1,
+ format, type, pixels, packing);
+ _mesa_rescale_teximage2d(rawBytes,
+ width,
+ 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_RGBA, 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 */
+ if (!ctx->Mesa_DXTn && 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_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ case GL_RGBA_S3TC:
+ case GL_RGBA4_S3TC:
+ 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;
+ }
+ }
+#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) {
+ texImage->CompressedSize = _mesa_compressed_texture_size(ctx,
+ mml->width,
+ mml->height,
+ 1,
+ internalFormat);
+ dstRowStride = _mesa_compressed_row_stride(internalFormat, mml->width);
+ texImage->Data = _mesa_malloc(texImage->CompressedSize);
+ } else {
+ dstRowStride = mml->width * texelBytes;
+ texImage->Data = _mesa_malloc(mml->width * mml->height * texelBytes);
+ }
+ if (!texImage->Data) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
+ return;
+ }
+
+ if (pixels != NULL) {
+ 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);
+ }
+
+ /* GL_SGIS_generate_mipmap */
+ if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
+ GLint mipWidth, mipHeight;
+ tfxMipMapLevel *mip;
+ struct gl_texture_image *mipImage;
+ const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ const GLint maxLevels = _mesa_max_texture_levels(ctx, texObj->Target);
+
+ assert(!texImage->IsCompressed);
+
+ while (level < texObj->MaxLevel && level < maxLevels - 1) {
+ mipWidth = width / 2;
+ if (!mipWidth) {
+ mipWidth = 1;
+ }
+ mipHeight = height / 2;
+ if (!mipHeight) {
+ mipHeight = 1;
+ }
+ if ((mipWidth == width) && (mipHeight == height)) {
+ break;
+ }
+ _mesa_TexImage2D(target, ++level, internalFormat,
+ mipWidth, mipHeight, border,
+ format, type,
+ NULL);
+ mipImage = _mesa_select_tex_image(ctx, texUnit, target, level);
+ mip = FX_MIPMAP_DATA(mipImage);
+ _mesa_halve2x2_teximage2d(ctx,
+ texImage,
+ texelBytes,
+ mml->width, mml->height,
+ texImage->Data, mipImage->Data);
+ texImage = mipImage;
+ mml = mip;
+ width = mipWidth;
+ height = mipHeight;
+ }
+ }
+ }
+
+ ti->info.format = mml->glideFormat;
+ texImage->FetchTexelc = fxFetchFunction(texImage->TexFormat->MesaFormat);
+
+ 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;
+
+ 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);
+ }
+
+ /* GL_SGIS_generate_mipmap */
+ if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
+ GLint mipWidth, mipHeight;
+ tfxMipMapLevel *mip;
+ struct gl_texture_image *mipImage;
+ const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ const GLint maxLevels = _mesa_max_texture_levels(ctx, texObj->Target);
+
+ assert(!texImage->IsCompressed);
+
+ width = texImage->Width;
+ height = texImage->Height;
+ while (level < texObj->MaxLevel && level < maxLevels - 1) {
+ mipWidth = width / 2;
+ if (!mipWidth) {
+ mipWidth = 1;
+ }
+ mipHeight = height / 2;
+ if (!mipHeight) {
+ mipHeight = 1;
+ }
+ if ((mipWidth == width) && (mipHeight == height)) {
+ break;
+ }
+ ++level;
+ mipImage = _mesa_select_tex_image(ctx, texUnit, target, level);
+ mip = FX_MIPMAP_DATA(mipImage);
+ _mesa_halve2x2_teximage2d(ctx,
+ texImage,
+ texelBytes,
+ mml->width, mml->height,
+ texImage->Data, mipImage->Data);
+ texImage = mipImage;
+ mml = mip;
+ width = mipWidth;
+ height = mipHeight;
+ }
+ }
+
+ if (ti->validated && ti->isInTM && !texObj->GenerateMipmap)
+ 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, "glCompressedTexImage2D");
+ 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->CompressedSize = _mesa_compressed_texture_size(ctx,
+ mml->width,
+ mml->height,
+ 1,
+ internalFormat);
+ texImage->Data = _mesa_malloc(texImage->CompressedSize);
+ if (!texImage->Data) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2D");
+ return;
+ }
+ }
+
+ /* save the texture data */
+ if (mml->wScale != 1 || mml->hScale != 1) {
+ /* [dBorca] Hack alert:
+ * now we're screwed. We can't decompress,
+ * unless we do it in HW (via textureBuffer).
+ * We still have some chances:
+ * 1) we got FXT1 textures - we CAN decompress, rescale for
+ * aspectratio, then compress back.
+ * 2) there is a chance that MIN("s", "t") won't be overflowed.
+ * Thus, we don't care about textureclamp and we could lower
+ * MIN("uscale", "vscale") below 32. We still have to have
+ * our data aligned inside a 8:1 rectangle.
+ * 3) just in case if MIN("s", "t") gets overflowed with GL_REPEAT,
+ * we replicate the data over the padded area.
+ * For now, we take 2) + 3) but texelfetchers will be wrong!
+ */
+ GLuint srcRowStride = _mesa_compressed_row_stride(internalFormat, width);
+
+ GLuint destRowStride = _mesa_compressed_row_stride(internalFormat,
+ mml->width);
+
+ _mesa_upscale_teximage2d(srcRowStride, (height+3) / 4,
+ destRowStride, (mml->height+3) / 4,
+ 1, data, srcRowStride,
+ texImage->Data);
+ ti->padded = GL_TRUE;
+ } else {
+ MEMCPY(texImage->Data, data, texImage->CompressedSize);
+ }
+
+ ti->info.format = mml->glideFormat;
+ texImage->FetchTexelc = fxFetchFunction(texImage->TexFormat->MesaFormat);
+
+ /* GL_SGIS_generate_mipmap */
+ if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
+ assert(!texImage->IsCompressed);
+ }
+
+ 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,
+ mml->width);
+ dest = _mesa_compressed_image_address(xoffset, yoffset, 0,
+ texImage->IntFormat,
+ mml->width,
+ (GLubyte*) texImage->Data);
+
+ rows = height / 4; /* 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
+ */
+ if (mml->wScale != 1 || mml->hScale != 1) {
+ srcRowStride = _mesa_compressed_row_stride(texImage->IntFormat, texImage->Width);
+
+ destRowStride = _mesa_compressed_row_stride(texImage->IntFormat,
+ mml->width);
+ _mesa_upscale_teximage2d(srcRowStride, texImage->Height / 4,
+ destRowStride, mml->height / 4,
+ 1, texImage->Data, destRowStride,
+ texImage->Data);
+ }
+
+ /* GL_SGIS_generate_mipmap */
+ if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
+ assert(!texImage->IsCompressed);
+ }
+
+ if (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)
+{
+ /* XXX 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 */
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-01 22:31:19 +0000