/* * 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 "main/enums.h" #include "main/formats.h" #include "main/image.h" #include "main/teximage.h" #include "main/texstore.h" #include "main/texformat.h" #include "main/texcompress.h" #include "main/texobj.h" #include "main/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(ctx, 2, GL_RGBA, &_mesa_texformat_rgba8888_rev, src, 0, 0, 0, /* dstX/Y/Zoffset */ srcRowStride, /* dstRowStride */ 0, /* dstImageStride */ srcWidth, srcHeight, 1, texImage->_BaseFormat, _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; _mesa_texstore(ctx, 2, texImage->_BaseFormat, 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->_BaseFormat) { 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 gl_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_FORMAT_RGB565; } /* intentional fall through */ case GL_RGB8: case GL_RGB10: case GL_RGB12: case GL_RGB16: return (allow32bpt) ? MESA_FORMAT_ARGB8888 : MESA_FORMAT_RGB565; case GL_RGBA2: case GL_RGBA4: return MESA_FORMAT_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_FORMAT_ARGB8888; } else if ( srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV ) { return MESA_FORMAT_ARGB4444; } else if ( srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV ) { return MESA_FORMAT_ARGB1555; } } /* intentional fall through */ case GL_RGBA8: case GL_RGB10_A2: case GL_RGBA12: case GL_RGBA16: return (allow32bpt) ? MESA_FORMAT_ARGB8888 : MESA_FORMAT_ARGB4444; case GL_INTENSITY: case GL_INTENSITY4: case GL_INTENSITY8: case GL_INTENSITY12: case GL_INTENSITY16: case GL_COMPRESSED_INTENSITY: return MESA_FORMAT_I8; case 1: case GL_LUMINANCE: case GL_LUMINANCE4: case GL_LUMINANCE8: case GL_LUMINANCE12: case GL_LUMINANCE16: case GL_COMPRESSED_LUMINANCE: return MESA_FORMAT_L8; case GL_ALPHA: case GL_ALPHA4: case GL_ALPHA8: case GL_ALPHA12: case GL_ALPHA16: case GL_COMPRESSED_ALPHA: return MESA_FORMAT_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_FORMAT_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_FORMAT_AL88; case GL_R3_G3_B2: case GL_RGB4: case GL_RGB5: return MESA_FORMAT_RGB565; case GL_RGB5_A1: return MESA_FORMAT_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_FORMAT_RGB_DXT1; case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: return MESA_FORMAT_RGBA_DXT1; case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: case GL_RGBA_S3TC: case GL_RGBA4_S3TC: return MESA_FORMAT_RGBA_DXT3; case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: return MESA_FORMAT_RGBA_DXT5; /* GL_3DFX_texture_compression_FXT1 */ case GL_COMPRESSED_RGB_FXT1_3DFX: return MESA_FORMAT_RGB_FXT1; case GL_COMPRESSED_RGBA_FXT1_3DFX: return MESA_FORMAT_RGBA_FXT1; default: _mesa_problem(NULL, "unexpected format in fxDDChooseTextureFormat"); return MESA_FORMAT_NONE; } } 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 (!_mesa_is_format_compressed(texImage->TexFormat)) { GLubyte *destAddr; tempImage = MALLOC(width * height * texelBytes); if (!tempImage) { return GL_FALSE; } _mesa_texstore(ctx, 2, texImage->_BaseFormat, 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(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*/ ); _mesa_texstore(ctx, 2, texImage->_BaseFormat, 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->InternalFormat, 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 && _mesa_is_format_compressed(texImage->TexFormat)) { 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->InternalFormat = 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->InternalFormat = internalFormat = texNapalm; } } #endif /* choose the texture format */ assert(ctx->Driver.ChooseTextureFormat); texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx, internalFormat, format, type); assert(texImage->TexFormat); texelBytes = _mesa_get_format_bytes(texImage->TexFormat->MesaFormat); /*if (!fxMesa->HaveTexFmt) assert(texelBytes == 1 || texelBytes == 2);*/ mml->glideFormat = fxGlideFormat(texImage->TexFormat->MesaFormat); /* allocate mipmap buffer */ assert(!texImage->Data); if (_mesa_is_format_compressed(texImage->TexFormat)) { texImage->CompressedSize = _mesa_format_image_size(texImage->TexFormat, mml->width, mml->height, 1); dstRowStride = _mesa_format_row_stride(texImage->TexFormat, 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 */ _mesa_texstore(ctx, 2, texImage->_BaseFormat, 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(!_mesa_is_format_compressed(texImage->TexFormat)); 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->_BaseFormat); texelBytes = _mesa_get_format_bytes(texImage->TexFormat->MesaFormat); if (_mesa_is_format_compressed(texImage->TexFormat)) { dstRowStride = _mesa_format_row_stride(texImage->TexFormat, 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 */ _mesa_texstore(ctx, 2, texImage->_BaseFormat, 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(!_mesa_is_format_compressed(texImage->TexFormat)); 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(_mesa_is_format_compressed(texImage->TexFormat)); 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_format_image_size(texImage->TexFormat, mml->width, mml->height, 1); 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_format_row_stride(texImage->TexFormat, width); GLuint destRowStride = _mesa_format_row_stride(texImage->TexFormat, 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(!_mesa_is_format_compressed(texImage->TexFormat)); } 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_format_row_stride(texImage->TexFormat, width); destRowStride = _mesa_format_row_stride(texImage->TexFormat, mml->width); dest = _mesa_compressed_image_address(xoffset, yoffset, 0, texImage->InternalFormat, 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_format_row_stride(texImage->TexFormat, texImage->Width); destRowStride = _mesa_format_row_stride(texImage->TexFormat, 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(!_mesa_is_format_compressed(texImage->TexFormat)); } 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 */