diff options
Diffstat (limited to 'src/mesa/drivers/dri/tdfx/tdfx_tex.c')
| -rw-r--r-- | src/mesa/drivers/dri/tdfx/tdfx_tex.c | 1473 |
1 files changed, 1473 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/tdfx/tdfx_tex.c b/src/mesa/drivers/dri/tdfx/tdfx_tex.c new file mode 100644 index 0000000000..bffee96066 --- /dev/null +++ b/src/mesa/drivers/dri/tdfx/tdfx_tex.c @@ -0,0 +1,1473 @@ +/* -*- mode: c; c-basic-offset: 3 -*- + * + * Copyright 2000 VA Linux Systems Inc., Fremont, California. + * + * 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 (including the next + * paragraph) 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 + * VA LINUX SYSTEMS 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. + */ +/* $XFree86: xc/lib/GL/mesa/src/drv/tdfx/tdfx_tex.c,v 1.7 2002/11/05 17:46:10 tsi Exp $ */ + +/* + * Original rewrite: + * Gareth Hughes <gareth@valinux.com>, 29 Sep - 1 Oct 2000 + * + * Authors: + * Gareth Hughes <gareth@valinux.com> + * Brian Paul <brianp@valinux.com> + * + */ + +#include "image.h" +#include "texutil.h" +#include "texformat.h" +#include "teximage.h" +#include "texstore.h" +#include "tdfx_context.h" +#include "tdfx_tex.h" +#include "tdfx_texman.h" + + + +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; + } +} + + +/* + * Compute various texture image parameters. + * Input: w, h - source texture width and height + * Output: lodlevel - Glide lod level token for the larger texture dimension + * aspectratio - 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 + * + * Sample results: + * w h lodlevel aspectRatio + * 128 128 GR_LOD_LOG2_128 (=7) GR_ASPECT_LOG2_1x1 (=0) + * 64 64 GR_LOD_LOG2_64 (=6) GR_ASPECT_LOG2_1x1 (=0) + * 64 32 GR_LOD_LOG2_64 (=6) GR_ASPECT_LOG2_2x1 (=1) + * 32 64 GR_LOD_LOG2_64 (=6) GR_ASPECT_LOG2_1x2 (=-1) + * 32 32 GR_LOD_LOG2_32 (=5) GR_ASPECT_LOG2_1x1 (=0) + */ +static void +tdfxTexGetInfo(const GLcontext *ctx, int w, int h, + GrLOD_t *lodlevel, GrAspectRatio_t *aspectratio, + float *sscale, float *tscale, + int *wscale, int *hscale) +{ + int logw, logh, ar, lod, ws, hs; + float s, t; + + ASSERT(w >= 1); + ASSERT(h >= 1); + + logw = logbase2(w); + logh = logbase2(h); + ar = logw - logh; /* aspect ratio = difference in log dimensions */ + + /* Hardware only allows a maximum aspect ratio of 8x1, so handle + |ar| > 3 by scaling the image and using an 8x1 aspect ratio */ + if (ar >= 0) { + ASSERT(width >= height); + lod = logw; + s = 256.0; + ws = 1; + if (ar <= GR_ASPECT_LOG2_8x1) { + t = 256 >> ar; + hs = 1; + } + else { + /* have to stretch image height */ + t = 32.0; + hs = 1 << (ar - 3); + } + } + else { + ASSERT(width < height); + lod = logh; + t = 256.0; + hs = 1; + if (ar >= GR_ASPECT_LOG2_1x8) { + s = 256 >> -ar; + ws = 1; + } + else { + /* have to stretch image width */ + s = 32.0; + ws = 1 << (-ar - 3); + } + } + + if (ar < GR_ASPECT_LOG2_1x8) + ar = GR_ASPECT_LOG2_1x8; + else if (ar > GR_ASPECT_LOG2_8x1) + ar = GR_ASPECT_LOG2_8x1; + + if (lodlevel) + *lodlevel = (GrLOD_t) lod; + if (aspectratio) + *aspectratio = (GrAspectRatio_t) ar; + if (sscale) + *sscale = s; + if (tscale) + *tscale = t; + if (wscale) + *wscale = ws; + if (hscale) + *hscale = hs; +} + + +/* + * We need to call this when a texture object's minification filter + * or texture image sizes change. + */ +static void RevalidateTexture(GLcontext *ctx, struct gl_texture_object *tObj) +{ + tdfxTexInfo *ti = TDFX_TEXTURE_DATA(tObj); + GLint minl, maxl; + + if (!ti) + return; + + minl = maxl = tObj->BaseLevel; + + if (tObj->Image[minl]) { + maxl = MIN2(tObj->MaxLevel, tObj->Image[minl]->MaxLog2); + + /* compute largeLodLog2, aspect ratio and texcoord scale factors */ + tdfxTexGetInfo(ctx, tObj->Image[minl]->Width, tObj->Image[minl]->Height, + &ti->info.largeLodLog2, + &ti->info.aspectRatioLog2, + &(ti->sScale), &(ti->tScale), NULL, NULL); + } + + if (tObj->Image[maxl] && (tObj->MinFilter != GL_NEAREST) && (tObj->MinFilter != GL_LINEAR)) { + /* mipmapping: need to compute smallLodLog2 */ + tdfxTexGetInfo(ctx, tObj->Image[maxl]->Width, + tObj->Image[maxl]->Height, + &ti->info.smallLodLog2, NULL, + NULL, NULL, NULL, NULL); + } + else { + /* not mipmapping: smallLodLog2 = largeLodLog2 */ + ti->info.smallLodLog2 = ti->info.largeLodLog2; + maxl = minl; + } + + ti->minLevel = minl; + ti->maxLevel = maxl; + ti->info.data = NULL; +} + + +static tdfxTexInfo * +fxAllocTexObjData(tdfxContextPtr fxMesa) +{ + tdfxTexInfo *ti; + + if (!(ti = CALLOC(sizeof(tdfxTexInfo)))) { + _mesa_problem(NULL, "tdfx driver: out of memory"); + return NULL; + } + + ti->isInTM = GL_FALSE; + + ti->whichTMU = TDFX_TMU_NONE; + + ti->tm[TDFX_TMU0] = NULL; + ti->tm[TDFX_TMU1] = NULL; + + ti->minFilt = GR_TEXTUREFILTER_POINT_SAMPLED; + ti->magFilt = GR_TEXTUREFILTER_BILINEAR; + + ti->sClamp = GR_TEXTURECLAMP_WRAP; + ti->tClamp = GR_TEXTURECLAMP_WRAP; + + ti->mmMode = GR_MIPMAP_NEAREST; + ti->LODblend = FXFALSE; + + return ti; +} + + +/* + * Called via glBindTexture. + */ + +void +tdfxDDBindTexture(GLcontext * ctx, GLenum target, + struct gl_texture_object *tObj) +{ + tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx); + tdfxTexInfo *ti; + + if (MESA_VERBOSE & VERBOSE_DRIVER) { + fprintf(stderr, "fxmesa: fxDDTexBind(%d,%p)\n", tObj->Name, + tObj->DriverData); + } + + if (target != GL_TEXTURE_2D) + return; + + if (!tObj->DriverData) { + tObj->DriverData = fxAllocTexObjData(fxMesa); + } + + ti = TDFX_TEXTURE_DATA(tObj); + ti->lastTimeUsed = fxMesa->texBindNumber++; + + fxMesa->new_state |= TDFX_NEW_TEXTURE; +} + + +/* + * Called via glTexEnv. + */ +void +tdfxDDTexEnv(GLcontext * ctx, GLenum target, GLenum pname, + const GLfloat * param) +{ + tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx); + + if ( TDFX_DEBUG & DEBUG_VERBOSE_API ) { + if (param) + fprintf(stderr, "fxmesa: texenv(%x,%x)\n", pname, + (GLint) (*param)); + else + fprintf(stderr, "fxmesa: texenv(%x)\n", pname); + } + + /* XXX this is a bit of a hack to force the Glide texture + * state to be updated. + */ + fxMesa->TexState.EnvMode[ctx->Texture.CurrentUnit] = 0; + + fxMesa->new_state |= TDFX_NEW_TEXTURE; +} + + +/* + * Called via glTexParameter. + */ +void +tdfxDDTexParameter(GLcontext * ctx, GLenum target, + struct gl_texture_object *tObj, + GLenum pname, const GLfloat * params) +{ + tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx); + GLenum param = (GLenum) (GLint) params[0]; + tdfxTexInfo *ti; + + if (MESA_VERBOSE & VERBOSE_DRIVER) { + fprintf(stderr, "fxmesa: fxDDTexParam(%d,%p,%x,%x)\n", tObj->Name, + tObj->DriverData, pname, param); + } + + if (target != GL_TEXTURE_2D) + return; + + if (!tObj->DriverData) + tObj->DriverData = fxAllocTexObjData(fxMesa); + + ti = TDFX_TEXTURE_DATA(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: + if (TDFX_IS_NAPALM(fxMesa)) { + 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; + } + /* XXX Voodoo3/Banshee mipmap blending seems to produce + * incorrectly filtered colors for the smallest mipmap levels. + * To work-around we fall-through here and use a different filter. + */ + 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: + if (TDFX_IS_NAPALM(fxMesa)) { + 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; + } + /* XXX Voodoo3/Banshee mipmap blending seems to produce + * incorrectly filtered colors for the smallest mipmap levels. + * To work-around we fall-through here and use a different filter. + */ + case GL_LINEAR_MIPMAP_NEAREST: + ti->mmMode = GR_MIPMAP_NEAREST; + ti->minFilt = GR_TEXTUREFILTER_BILINEAR; + ti->LODblend = FXFALSE; + break; + default: + break; + } + RevalidateTexture(ctx, tObj); + fxMesa->new_state |= TDFX_NEW_TEXTURE; + break; + + case GL_TEXTURE_MAG_FILTER: + switch (param) { + case GL_NEAREST: + ti->magFilt = GR_TEXTUREFILTER_POINT_SAMPLED; + break; + case GL_LINEAR: + ti->magFilt = GR_TEXTUREFILTER_BILINEAR; + break; + default: + break; + } + fxMesa->new_state |= TDFX_NEW_TEXTURE; + break; + + case GL_TEXTURE_WRAP_S: + switch (param) { + case GL_CLAMP: + ti->sClamp = GR_TEXTURECLAMP_CLAMP; + break; + case GL_REPEAT: + ti->sClamp = GR_TEXTURECLAMP_WRAP; + break; + default: + break; + } + fxMesa->new_state |= TDFX_NEW_TEXTURE; + break; + + case GL_TEXTURE_WRAP_T: + switch (param) { + case GL_CLAMP: + ti->tClamp = GR_TEXTURECLAMP_CLAMP; + break; + case GL_REPEAT: + ti->tClamp = GR_TEXTURECLAMP_WRAP; + break; + default: + break; + } + fxMesa->new_state |= TDFX_NEW_TEXTURE; + 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: + RevalidateTexture(ctx, tObj); + break; + case GL_TEXTURE_MAX_LEVEL: + RevalidateTexture(ctx, tObj); + break; + + default: + break; + } +} + + +/* + * Called via glDeleteTextures to delete a texture object. + * Here, we delete the Glide data associated with the texture. + */ +void +tdfxDDDeleteTexture(GLcontext * ctx, struct gl_texture_object *tObj) +{ + if (ctx && ctx->DriverCtx) { + tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx); + tdfxTMFreeTexture(fxMesa, tObj); + fxMesa->new_state |= TDFX_NEW_TEXTURE; + } +} + + +/* + * Return true if texture is resident, false otherwise. + */ +GLboolean +tdfxDDIsTextureResident(GLcontext *ctx, struct gl_texture_object *tObj) +{ + tdfxTexInfo *ti = TDFX_TEXTURE_DATA(tObj); + return (GLboolean) (ti && ti->isInTM); +} + + + +/* + * Convert a gl_color_table texture palette to Glide's format. + */ +static void +convertPalette(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->TableType == 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; + } + break; + 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; + } + break; + 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; + } + break; + 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; + } + break; + 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; + } + break; + 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; + } + break; + } +} + + + +void +tdfxDDTexturePalette(GLcontext * ctx, struct gl_texture_object *tObj) +{ + tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx); + + if (tObj) { + /* per-texture palette */ + tdfxTexInfo *ti; + + /* This might be a proxy texture. */ + if (!tObj->Palette.Table) + return; + + if (!tObj->DriverData) + tObj->DriverData = fxAllocTexObjData(fxMesa); + ti = TDFX_TEXTURE_DATA(tObj); + convertPalette(ti->palette.data, &tObj->Palette); + /*tdfxTexInvalidate(ctx, tObj);*/ + } + else { + /* global texture palette */ + convertPalette(fxMesa->glbPalette.data, &ctx->Texture.Palette); + } + fxMesa->new_state |= TDFX_NEW_TEXTURE; /* XXX too heavy-handed */ +} + + +/**********************************************************************/ +/**** NEW TEXTURE IMAGE FUNCTIONS ****/ +/**********************************************************************/ + +#if 000 +static FxBool TexusFatalError = FXFALSE; +static FxBool TexusError = FXFALSE; + +#define TX_DITHER_NONE 0x00000000 + +static void +fxTexusError(const char *string, FxBool fatal) +{ + _mesa_problem(NULL, string); + /* + * Just propagate the fatal value up. + */ + TexusError = FXTRUE; + TexusFatalError = fatal; +} +#endif + + +const struct gl_texture_format * +tdfxDDChooseTextureFormat( GLcontext *ctx, GLint internalFormat, + GLenum srcFormat, GLenum srcType ) +{ + tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx); + const GLboolean allow32bpt = TDFX_IS_NAPALM(fxMesa); + + switch (internalFormat) { + case GL_ALPHA: + case GL_ALPHA4: + case GL_ALPHA8: + case GL_ALPHA12: + case GL_ALPHA16: + return &_mesa_texformat_a8; + case 1: + case GL_LUMINANCE: + case GL_LUMINANCE4: + case GL_LUMINANCE8: + case GL_LUMINANCE12: + case GL_LUMINANCE16: + return &_mesa_texformat_l8; + 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: + return &_mesa_texformat_al88; + case GL_INTENSITY: + case GL_INTENSITY4: + case GL_INTENSITY8: + case GL_INTENSITY12: + case GL_INTENSITY16: + return &_mesa_texformat_i8; + case GL_R3_G3_B2: + case GL_RGB4: + case GL_RGB5: + return &_mesa_texformat_rgb565; + case 3: + case GL_RGB: + case GL_RGB8: + case GL_RGB10: + case GL_RGB12: + case GL_RGB16: + return (allow32bpt) ? &_mesa_texformat_argb8888 + : &_mesa_texformat_rgb565; + break; + case GL_RGBA2: + case GL_RGBA4: + return &_mesa_texformat_argb4444; + case 4: + case GL_RGBA: + case GL_RGBA8: + case GL_RGB10_A2: + case GL_RGBA12: + case GL_RGBA16: + return allow32bpt ? &_mesa_texformat_argb8888 + : &_mesa_texformat_argb4444; + case GL_RGB5_A1: + return &_mesa_texformat_argb1555; + 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; + default: + _mesa_problem(ctx, "unexpected format in tdfxDDChooseTextureFormat"); + return NULL; + } +} + + +/* + * Return the Glide format for the given mesa texture format. + */ +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; + default: + _mesa_problem(NULL, "Unexpected format in fxGlideFormat"); + return 0; + } +} + + +/* 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, GLvoid * texelOut) +{ + GLchan *rgba = (GLchan *) texelOut; + const tdfxMipMapLevel *mml = TDFX_TEXIMAGE_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, GLvoid * texelOut) +{ + GLchan *rgba = (GLchan *) texelOut; + const tdfxMipMapLevel *mml = TDFX_TEXIMAGE_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, GLvoid * texelOut) +{ + GLchan *rgba = (GLchan *) texelOut; + const tdfxMipMapLevel *mml = TDFX_TEXIMAGE_DATA(texImage); + const GLubyte *texel; + + i = i * mml->wScale; + j = j * mml->hScale; + i = i * mml->width / texImage->Width; + j = j * mml->height / texImage->Height; + + 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, GLvoid * texelOut) +{ + const tdfxMipMapLevel *mml = TDFX_TEXIMAGE_DATA(texImage); + (void) mml; + /* XXX todo */ +} + + +static void +fetch_luminance8_alpha8(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLvoid * texelOut) +{ + GLchan *rgba = (GLchan *) texelOut; + const tdfxMipMapLevel *mml = TDFX_TEXIMAGE_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, GLvoid * texelOut) +{ + GLchan *rgba = (GLchan *) texelOut; + const tdfxMipMapLevel *mml = TDFX_TEXIMAGE_DATA(texImage); + const GLushort *texel; + + i = i * mml->wScale; + j = j * mml->hScale; + + texel = ((GLushort *) texImage->Data) + j * mml->width + i; + rgba[RCOMP] = (((*texel) >> 11) & 0x1f) * 255 / 31; + rgba[GCOMP] = (((*texel) >> 5) & 0x3f) * 255 / 63; + rgba[BCOMP] = (((*texel) >> 0) & 0x1f) * 255 / 31; + rgba[ACOMP] = 255; +} + + +static void +fetch_r4g4b4a4(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLvoid * texelOut) +{ + GLchan *rgba = (GLchan *) texelOut; + const tdfxMipMapLevel *mml = TDFX_TEXIMAGE_DATA(texImage); + const GLushort *texel; + + i = i * mml->wScale; + j = j * mml->hScale; + + texel = ((GLushort *) texImage->Data) + j * mml->width + i; + rgba[RCOMP] = (((*texel) >> 12) & 0xf) * 255 / 15; + rgba[GCOMP] = (((*texel) >> 8) & 0xf) * 255 / 15; + rgba[BCOMP] = (((*texel) >> 4) & 0xf) * 255 / 15; + rgba[ACOMP] = (((*texel) >> 0) & 0xf) * 255 / 15; +} + + +static void +fetch_r5g5b5a1(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLvoid * texelOut) +{ + GLchan *rgba = (GLchan *) texelOut; + const tdfxMipMapLevel *mml = TDFX_TEXIMAGE_DATA(texImage); + const GLushort *texel; + + i = i * mml->wScale; + j = j * mml->hScale; + + texel = ((GLushort *) texImage->Data) + j * mml->width + i; + rgba[RCOMP] = (((*texel) >> 11) & 0x1f) * 255 / 31; + rgba[GCOMP] = (((*texel) >> 6) & 0x1f) * 255 / 31; + rgba[BCOMP] = (((*texel) >> 1) & 0x1f) * 255 / 31; + rgba[ACOMP] = (((*texel) >> 0) & 0x01) * 255; +} + + +static void +fetch_a8r8g8b8(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLvoid * texelOut) +{ + GLchan *rgba = (GLchan *) texelOut; + const tdfxMipMapLevel *mml = TDFX_TEXIMAGE_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 FetchTexelFunc +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; + default: + _mesa_problem(NULL, "Unexpected format in fxFetchFunction"); + printf("%d\n", mesaFormat); + return NULL; + } +} + + +void +tdfxDDTexImage2D(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) +{ + tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx); + tdfxTexInfo *ti; + tdfxMipMapLevel *mml; + GLint texelBytes; + + /* + printf("TexImage id=%d int 0x%x format 0x%x type 0x%x %dx%d\n", + texObj->Name, texImage->IntFormat, format, type, + texImage->Width, texImage->Height); + */ + + ti = TDFX_TEXTURE_DATA(texObj); + if (!ti) { + texObj->DriverData = fxAllocTexObjData(fxMesa); + if (!texObj->DriverData) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D"); + return; + } + ti = TDFX_TEXTURE_DATA(texObj); + } + + mml = TDFX_TEXIMAGE_DATA(texImage); + if (!mml) { + texImage->DriverData = CALLOC(sizeof(tdfxMipMapLevel)); + if (!texImage->DriverData) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D"); + return; + } + mml = TDFX_TEXIMAGE_DATA(texImage); + } + + /* Determine width and height scale factors for texture. + * Remember, Glide is limited to 8:1 aspect ratios. + */ + tdfxTexGetInfo(ctx, + texImage->Width, texImage->Height, + NULL, /* lod level */ + NULL, /* aspect ratio */ + NULL, NULL, /* sscale, tscale */ + &mml->wScale, &mml->hScale); + + /* rescaled size: */ + 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, format, type); + assert(texImage->TexFormat); + mml->glideFormat = fxGlideFormat(texImage->TexFormat->MesaFormat); + ti->info.format = mml->glideFormat; + texImage->FetchTexel = fxFetchFunction(texImage->TexFormat->MesaFormat); + texelBytes = texImage->TexFormat->TexelBytes; + + if (mml->width != width || mml->height != height) { + /* rescale the image to overcome 1:8 aspect limitation */ + GLvoid *tempImage; + tempImage = MALLOC(width * height * texelBytes); + if (!tempImage) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D"); + return; + } + /* unpack image, apply transfer ops and store in tempImage */ + _mesa_transfer_teximage(ctx, 2, texImage->Format, + texImage->TexFormat, + tempImage, + width, height, 1, 0, 0, 0, + width * texelBytes, + 0, /* dstImageStride */ + format, type, pixels, packing); + assert(!texImage->Data); + texImage->Data = MESA_PBUFFER_ALLOC(mml->width * mml->height * texelBytes); + if (!texImage->Data) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D"); + FREE(tempImage); + return; + } + _mesa_rescale_teximage2d(texelBytes, + mml->width * texelBytes, /* dst stride */ + width, height, + mml->width, mml->height, + tempImage /*src*/, texImage->Data /*dst*/ ); + FREE(tempImage); + } + else { + /* no rescaling needed */ + assert(!texImage->Data); + texImage->Data = MESA_PBUFFER_ALLOC(mml->width * mml->height * texelBytes); + if (!texImage->Data) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D"); + return; + } + /* unpack image, apply transfer ops and store in texImage->Data */ + _mesa_transfer_teximage(ctx, 2, texImage->Format, + texImage->TexFormat, texImage->Data, + width, height, 1, 0, 0, 0, + texImage->Width * texelBytes, + 0, /* dstImageStride */ + format, type, pixels, packing); + } + + RevalidateTexture(ctx, texObj); + + ti->reloadImages = GL_TRUE; + fxMesa->new_state |= TDFX_NEW_TEXTURE; +} + + +void +tdfxDDTexSubImage2D(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 ) +{ + tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx); + tdfxTexInfo *ti; + tdfxMipMapLevel *mml; + GLint texelBytes; + + if (!texObj->DriverData) { + _mesa_problem(ctx, "problem in fxDDTexSubImage2D"); + return; + } + + ti = TDFX_TEXTURE_DATA(texObj); + assert(ti); + mml = TDFX_TEXIMAGE_DATA(texImage); + assert(mml); + + assert(texImage->Data); /* must have an existing texture image! */ + assert(texImage->Format); + + texelBytes = texImage->TexFormat->TexelBytes; + + if (mml->wScale != 1 || mml->hScale != 1) { + /* need to rescale subimage to match mipmap level's rescale factors */ + const GLint newWidth = width * mml->wScale; + const GLint newHeight = height * mml->hScale; + GLvoid *scaledImage, *tempImage; + GLubyte *destAddr; + tempImage = MALLOC(width * height * texelBytes); + if (!tempImage) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage2D"); + return; + } + + _mesa_transfer_teximage(ctx, 2, texImage->Format,/* Tex int format */ + texImage->TexFormat, /* dest format */ + (GLubyte *) tempImage, /* dest */ + width, height, 1, /* subimage size */ + 0, 0, 0, /* subimage pos */ + width * texelBytes, /* dest row stride */ + 0, /* dst image stride */ + format, type, pixels, packing); + + /* now rescale */ + scaledImage = MALLOC(newWidth * newHeight * texelBytes); + if (!scaledImage) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage2D"); + FREE(tempImage); + return; + } + + /* 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, + mml->width * texelBytes, /* dst stride */ + width, height, + newWidth, newHeight, + tempImage, destAddr); + + FREE(tempImage); + FREE(scaledImage); + } + else { + /* no rescaling needed */ + _mesa_transfer_teximage(ctx, 2, texImage->Format, /* Tex int format */ + texImage->TexFormat, /* dest format */ + (GLubyte *) texImage->Data,/* dest */ + width, height, 1, /* subimage size */ + xoffset, yoffset, 0, /* subimage pos */ + mml->width * texelBytes, /* dest row stride */ + 0, /* dst image stride */ + format, type, pixels, packing); + } + + ti->reloadImages = GL_TRUE; /* signal the image needs to be reloaded */ + fxMesa->new_state |= TDFX_NEW_TEXTURE; /* XXX this might be a bit much */ +} + + + +/**********************************************************************/ +/**** COMPRESSED TEXTURE IMAGE FUNCTIONS ****/ +/**********************************************************************/ + +#if 0000 +GLboolean +tdfxDDCompressedTexImage2D( GLcontext *ctx, GLenum target, + GLint level, GLsizei imageSize, + const GLvoid *data, + struct gl_texture_object *texObj, + struct gl_texture_image *texImage, + GLboolean *retainInternalCopy) +{ + tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx); + const GLboolean allow32bpt = TDFX_IS_NAPALM(fxMesa); + GrTextureFormat_t gldformat; + tdfxTexInfo *ti; + tdfxMipMapLevel *mml; + GLint dstWidth, dstHeight, wScale, hScale, texelSize; + MesaIntTexFormat intFormat; + GLboolean isCompressedFormat; + GLsizei texSize; + + if (target != GL_TEXTURE_2D || texImage->Border > 0) + return GL_FALSE; + + if (!texObj->DriverData) + texObj->DriverData = fxAllocTexObjData(fxMesa); + + ti = TDFX_TEXTURE_DATA(texObj); + mml = &ti->mipmapLevel[level]; + + isCompressedFormat = tdfxDDIsCompressedGlideFormatMacro(texImage->IntFormat); + if (!isCompressedFormat) { + _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage2D(format)"); + return GL_FALSE; + } + /* Determine the apporpriate GL internal texel format, Mesa internal + * texel format, and texelSize (bytes) given the user's internal + * texture format hint. + */ + tdfxTexGetFormat(texImage->IntFormat, allow32bpt, + &gldformat, &intFormat, &texelSize); + + /* Determine width and height scale factors for texture. + * Remember, Glide is limited to 8:1 aspect ratios. + */ + tdfxTexGetInfo(ctx, + texImage->Width, texImage->Height, + NULL, /* lod level */ + NULL, /* aspect ratio */ + NULL, NULL, /* sscale, tscale */ + &wScale, &hScale); + dstWidth = texImage->Width * wScale; + dstHeight = texImage->Height * hScale; + /* housekeeping */ + _mesa_set_teximage_component_sizes(intFormat, texImage); + + texSize = tdfxDDCompressedImageSize(ctx, + texImage->IntFormat, + 2, + texImage->Width, + texImage->Height, + 1); + if (texSize != imageSize) { + _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexImage2D(texSize)"); + return GL_FALSE; + } + + /* allocate new storage for texture image, if needed */ + if (!mml->data || mml->glideFormat != gldformat || + mml->width != dstWidth || mml->height != dstHeight || + texSize != mml->dataSize) { + if (mml->data) { + FREE(mml->data); + } + mml->data = MALLOC(texSize); + if (!mml->data) { + return GL_FALSE; + } + mml->texelSize = texelSize; + mml->glideFormat = gldformat; + mml->width = dstWidth; + mml->height = dstHeight; + tdfxTMMoveOutTM(fxMesa, texObj); + /*tdfxTexInvalidate(ctx, texObj);*/ + } + + /* save the texture data */ + MEMCPY(mml->data, data, imageSize); + + RevalidateTexture(ctx, texObj); + + ti->reloadImages = GL_TRUE; + fxMesa->new_state |= TDFX_NEW_TEXTURE; + + *retainInternalCopy = GL_FALSE; + return GL_TRUE; +} + +GLboolean +tdfxDDCompressedTexSubImage2D( 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 ) +{ + tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx); + tdfxTexInfo *ti; + tdfxMipMapLevel *mml; + + /* + * We punt if we are not replacing the entire image. This + * is allowed by the spec. + */ + if ((xoffset != 0) && (yoffset != 0) + && (width != texImage->Width) + && (height != texImage->Height)) { + return GL_FALSE; + } + + ti = TDFX_TEXTURE_DATA(texObj); + mml = &ti->mipmapLevel[level]; + if (imageSize != mml->dataSize) { + return GL_FALSE; + } + MEMCPY(data, mml->data, imageSize); + + ti->reloadImages = GL_TRUE; + fxMesa->new_state |= TDFX_NEW_TEXTURE; + + return GL_TRUE; +} +#endif + + + +#if 0 +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) + printf("%02x %02x ", data[0], data[1]); + else if (c == 3) + printf("%02x %02x %02x ", data[0], data[1], data[2]); + data += c; + } + printf("\n"); + } +} +#endif + + +GLboolean +tdfxDDTestProxyTexImage(GLcontext *ctx, GLenum target, + GLint level, GLint internalFormat, + GLenum format, GLenum type, + GLint width, GLint height, + GLint depth, GLint border) +{ + tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx); + struct gl_shared_state *mesaShared = fxMesa->glCtx->Shared; + struct tdfxSharedState *shared = (struct tdfxSharedState *) mesaShared->DriverData; + + switch (target) { + case GL_PROXY_TEXTURE_1D: + return GL_TRUE; /* software rendering */ + case GL_PROXY_TEXTURE_2D: + { + struct gl_texture_object *tObj; + tdfxTexInfo *ti; + int memNeeded; + + tObj = ctx->Texture.Proxy2D; + if (!tObj->DriverData) + tObj->DriverData = fxAllocTexObjData(fxMesa); + ti = TDFX_TEXTURE_DATA(tObj); + + /* assign the parameters to test against */ + tObj->Image[level]->Width = width; + tObj->Image[level]->Height = height; + tObj->Image[level]->Border = border; +#if 0 + tObj->Image[level]->IntFormat = internalFormat; +#endif + if (level == 0) { + /* don't use mipmap levels > 0 */ + tObj->MinFilter = tObj->MagFilter = GL_NEAREST; + } + else { + /* test with all mipmap levels */ + tObj->MinFilter = GL_LINEAR_MIPMAP_LINEAR; + tObj->MagFilter = GL_NEAREST; + } + RevalidateTexture(ctx, tObj); + + /* + printf("small lodlog2 0x%x\n", ti->info.smallLodLog2); + printf("large lodlog2 0x%x\n", ti->info.largeLodLog2); + printf("aspect ratio 0x%x\n", ti->info.aspectRatioLog2); + printf("glide format 0x%x\n", ti->info.format); + printf("data %p\n", ti->info.data); + printf("lodblend %d\n", (int) ti->LODblend); + */ + + /* determine where texture will reside */ + if (ti->LODblend && !shared->umaTexMemory) { + /* XXX GR_MIPMAPLEVELMASK_BOTH might not be right, but works */ + memNeeded = fxMesa->Glide.grTexTextureMemRequired( + GR_MIPMAPLEVELMASK_BOTH, &(ti->info)); + } + else { + /* XXX GR_MIPMAPLEVELMASK_BOTH might not be right, but works */ + memNeeded = fxMesa->Glide.grTexTextureMemRequired( + GR_MIPMAPLEVELMASK_BOTH, &(ti->info)); + } + /* + printf("Proxy test %d > %d\n", memNeeded, shared->totalTexMem[0]); + */ + if (memNeeded > shared->totalTexMem[0]) + return GL_FALSE; + else + return GL_TRUE; + } + case GL_PROXY_TEXTURE_3D: + return GL_TRUE; /* software rendering */ + default: + return GL_TRUE; /* never happens, silence compiler */ + } +} + + +#if 000 +/* + * This is called from _mesa_GetCompressedTexImage. We just + * copy out the compressed data. + */ +void +tdfxDDGetCompressedTexImage( GLcontext *ctx, GLenum target, + GLint lod, void *image, + const struct gl_texture_object *texObj, + struct gl_texture_image *texImage ) +{ + tdfxTexInfo *ti; + tdfxMipMapLevel *mml; + + if (target != GL_TEXTURE_2D) + return; + + if (!texObj->DriverData) + return; + + ti = TDFX_TEXTURE_DATA(texObj); + mml = &ti->mipmapLevel[lod]; + if (mml->data) { + MEMCPY(image, mml->data, mml->dataSize); + } +} +#endif + +/* + * Calculate a specific texture format given a generic + * texture format. + */ +GLint +tdfxDDSpecificCompressedTexFormat(GLcontext *ctx, + GLint internalFormat, + GLint numDimensions) +{ + tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx); + + if (numDimensions != 2) { + return internalFormat; + } + /* + * If we don't have pointers to the functions, then + * we drop back to uncompressed format. The logic + * in Mesa proper handles this for us. + * + * This is just to ease the transition to a Glide with + * the texus2 library. + */ + if (!fxMesa->Glide.txImgQuantize || !fxMesa->Glide.txImgDequantizeFXT1) { + return internalFormat; + } + switch (internalFormat) { + case GL_COMPRESSED_RGB_ARB: + return GL_COMPRESSED_RGB_FXT1_3DFX; + case GL_COMPRESSED_RGBA_ARB: + return GL_COMPRESSED_RGBA_FXT1_3DFX; + } + return internalFormat; +} + +/* + * Calculate a specific texture format given a generic + * texture format. + */ +GLint +tdfxDDBaseCompressedTexFormat(GLcontext *ctx, + GLint internalFormat) +{ + switch (internalFormat) { + case GL_COMPRESSED_RGB_FXT1_3DFX: + return GL_RGB; + case GL_COMPRESSED_RGBA_FXT1_3DFX: + return GL_RGBA; + } + return -1; +} + +/* + * Tell us if an image is compressed. The real work is done + * in a macro, but we need to have a function to create a + * function pointer. + */ +GLboolean +tdfxDDIsCompressedFormat(GLcontext *ctx, GLint internalFormat) +{ + return tdfxDDIsCompressedFormatMacro(internalFormat); +} + + +/* + * Calculate the image size of a compressed texture. + * + * The current compressed format, the FXT1 family, all + * map 8x32 texel blocks into 128 bits. + * + * We return 0 if we can't calculate the size. + * + * Glide would report this out to us, but we don't have + * exactly the right parameters. + */ +GLsizei +tdfxDDCompressedImageSize(GLcontext *ctx, + GLenum intFormat, + GLuint numDimensions, + GLuint width, + GLuint height, + GLuint depth) +{ + if (numDimensions != 2) { + return 0; + } + switch (intFormat) { + case GL_COMPRESSED_RGB_FXT1_3DFX: + case GL_COMPRESSED_RGBA_FXT1_3DFX: + /* + * Round height and width to multiples of 4 and 8, + * divide the resulting product by 32 to get the number + * of blocks, and multiply by 32 = 128/8 to get the. + * number of bytes required. That is to say, just + * return the product. Remember that we are returning + * bytes, not texels, so we have shrunk the texture + * by a factor of the texel size. + */ + width = (width + 0x7) &~ 0x7; + height = (height + 0x3) &~ 0x3; + return width * height; + } + return 0; +} |