diff options
Diffstat (limited to 'src/mesa/drivers/dri/mga/mga_texstate.c')
| -rw-r--r-- | src/mesa/drivers/dri/mga/mga_texstate.c | 898 |
1 files changed, 0 insertions, 898 deletions
diff --git a/src/mesa/drivers/dri/mga/mga_texstate.c b/src/mesa/drivers/dri/mga/mga_texstate.c deleted file mode 100644 index 33ad8b42560..00000000000 --- a/src/mesa/drivers/dri/mga/mga_texstate.c +++ /dev/null @@ -1,898 +0,0 @@ -/* - * Copyright 2000-2001 VA Linux Systems, Inc. - * (c) Copyright IBM Corporation 2002 - * 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 - * on the rights to use, copy, modify, merge, publish, distribute, sub - * license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL - * VA LINUX SYSTEMS, IBM AND/OR THEIR SUPPLIERS 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: - * Ian Romanick <idr@us.ibm.com> - * Keith Whitwell <keithw@tungstengraphics.com> - */ - -#include "main/context.h" -#include "main/enums.h" -#include "main/macros.h" -#include "main/mm.h" -#include "main/imports.h" -#include "main/simple_list.h" - -#include "mgacontext.h" -#include "mgatex.h" -#include "mgaregs.h" -#include "mgatris.h" -#include "mgaioctl.h" - -#define MGA_USE_TABLE_FOR_FORMAT -#ifdef MGA_USE_TABLE_FOR_FORMAT -#define TMC_nr_tformat (MESA_FORMAT_YCBCR_REV + 1) -static const unsigned TMC_tformat[ TMC_nr_tformat ] = -{ - [MESA_FORMAT_ARGB8888] = TMC_tformat_tw32, - [MESA_FORMAT_RGB565] = TMC_tformat_tw16, - [MESA_FORMAT_ARGB4444] = TMC_tformat_tw12, - [MESA_FORMAT_ARGB1555] = TMC_tformat_tw15, - [MESA_FORMAT_AL88] = TMC_tformat_tw8al, - [MESA_FORMAT_I8] = TMC_tformat_tw8a, - [MESA_FORMAT_CI8] = TMC_tformat_tw8 , - [MESA_FORMAT_YCBCR] = TMC_tformat_tw422uyvy, - [MESA_FORMAT_YCBCR_REV] = TMC_tformat_tw422, -}; -#endif - -static void -mgaSetTexImages( mgaContextPtr mmesa, - const struct gl_texture_object * tObj ) -{ - mgaTextureObjectPtr t = (mgaTextureObjectPtr) tObj->DriverData; - struct gl_texture_image *baseImage = tObj->Image[0][ tObj->BaseLevel ]; - GLint totalSize; - GLint width, height; - GLint i; - GLint numLevels; - GLint log2Width, log2Height; - GLuint txformat = 0; - GLint ofs; - - /* Set the hardware texture format - */ -#ifndef MGA_USE_TABLE_FOR_FORMAT - switch (baseImage->TexFormat->MesaFormat) { - - case MESA_FORMAT_ARGB8888: txformat = TMC_tformat_tw32; break; - case MESA_FORMAT_RGB565: txformat = TMC_tformat_tw16; break; - case MESA_FORMAT_ARGB4444: txformat = TMC_tformat_tw12; break; - case MESA_FORMAT_ARGB1555: txformat = TMC_tformat_tw15; break; - case MESA_FORMAT_AL88: txformat = TMC_tformat_tw8al; break; - case MESA_FORMAT_I8: txformat = TMC_tformat_tw8a; break; - case MESA_FORMAT_CI8: txformat = TMC_tformat_tw8; break; - case MESA_FORMAT_YCBCR: txformat = TMC_tformat_tw422uyvy; break; - case MESA_FORMAT_YCBCR_REV: txformat = TMC_tformat_tw422; break; - - default: - _mesa_problem(NULL, "unexpected texture format in %s", __FUNCTION__); - return; - } -#else - if ( (baseImage->TexFormat >= TMC_nr_tformat) - || (TMC_tformat[ baseImage->TexFormat ] == 0) ) - { - _mesa_problem(NULL, "unexpected texture format in %s", __FUNCTION__); - return; - } - - txformat = TMC_tformat[ baseImage->TexFormat ]; - -#endif /* MGA_USE_TABLE_FOR_FORMAT */ - - driCalculateTextureFirstLastLevel( (driTextureObject *) t ); - if (tObj->Target == GL_TEXTURE_RECTANGLE_NV) { - log2Width = 0; - log2Height = 0; - } else { - log2Width = tObj->Image[0][t->base.firstLevel]->WidthLog2; - log2Height = tObj->Image[0][t->base.firstLevel]->HeightLog2; - } - - width = tObj->Image[0][t->base.firstLevel]->Width; - height = tObj->Image[0][t->base.firstLevel]->Height; - - numLevels = MIN2( t->base.lastLevel - t->base.firstLevel + 1, - MGA_IS_G200(mmesa) ? G200_TEX_MAXLEVELS : G400_TEX_MAXLEVELS); - - - totalSize = 0; - for ( i = 0 ; i < numLevels ; i++ ) { - const struct gl_texture_image * const texImage = - tObj->Image[0][ i + t->base.firstLevel ]; - int size; - - if (texImage == NULL) - break; - - size = texImage->Width * texImage->Height * - _mesa_get_format_bytes(baseImage->TexFormat); - - t->offsets[i] = totalSize; - t->base.dirty_images[0] |= (1<<i); - - /* All mipmaps must be 32-byte aligned */ - totalSize += (size + 31) & ~31; - - /* Since G400 calculates the offsets in hardware - * it can't handle more than one < 32 byte mipmap. - * - * Further testing has indicated that it can't - * handle any < 32 byte mipmaps. - */ - if (MGA_IS_G400( mmesa ) && size <= 32) { - i++; - break; - } - } - - /* save these values */ - numLevels = i; - t->base.lastLevel = t->base.firstLevel + numLevels - 1; - t->base.totalSize = totalSize; - - /* setup hardware register values */ - t->setup.texctl &= (TMC_tformat_MASK & TMC_tpitch_MASK - & TMC_tpitchext_MASK); - t->setup.texctl |= txformat; - - - /* Set the texture width. In order to support non-power of 2 textures and - * textures larger than 1024 texels wide, "linear" pitch must be used. For - * the linear pitch, if the width is 2048, a value of zero is used. - */ - - t->setup.texctl |= TMC_tpitchlin_enable; - t->setup.texctl |= MGA_FIELD( TMC_tpitchext, width & (2048 - 1) ); - - - /* G400 specifies the number of mip levels in a strange way. Since there - * are up to 11 levels, it requires 4 bits. Three of the bits are at the - * high end of TEXFILTER. The other bit is in the middle. Weird. - */ - numLevels--; - t->setup.texfilter &= TF_mapnb_MASK & TF_mapnbhigh_MASK & TF_reserved_MASK; - t->setup.texfilter |= MGA_FIELD( TF_mapnb, numLevels & 0x7 ); - t->setup.texfilter |= MGA_FIELD( TF_mapnbhigh, (numLevels >> 3) & 0x1 ); - - /* warp texture registers */ - ofs = MGA_IS_G200(mmesa) ? 28 : 11; - - t->setup.texwidth = (MGA_FIELD(TW_twmask, width - 1) | - MGA_FIELD(TW_rfw, (10 - log2Width - 8) & 63 ) | - MGA_FIELD(TW_tw, (log2Width + ofs ) | 0x40 )); - - t->setup.texheight = (MGA_FIELD(TH_thmask, height - 1) | - MGA_FIELD(TH_rfh, (10 - log2Height - 8) & 63 ) | - MGA_FIELD(TH_th, (log2Height + ofs ) | 0x40 )); - - mgaUploadTexImages( mmesa, t ); -} - - -/* ================================================================ - * Texture unit state management - */ - -static void mgaUpdateTextureEnvG200( struct gl_context *ctx, GLuint unit ) -{ - mgaContextPtr mmesa = MGA_CONTEXT(ctx); - struct gl_texture_object *tObj = ctx->Texture.Unit[0]._Current; - mgaTextureObjectPtr t = (mgaTextureObjectPtr) tObj->DriverData; - GLenum format = tObj->Image[0][tObj->BaseLevel]->_BaseFormat; - - if (tObj != ctx->Texture.Unit[0].CurrentTex[TEXTURE_2D_INDEX] && - tObj != ctx->Texture.Unit[0].CurrentTex[TEXTURE_RECT_INDEX]) - return; - - - t->setup.texctl &= ~TMC_tmodulate_enable; - t->setup.texctl2 &= ~(TMC_decalblend_enable | - TMC_idecal_enable | - TMC_decaldis_enable); - - switch (ctx->Texture.Unit[0].EnvMode) { - case GL_REPLACE: - if (format == GL_ALPHA) - t->setup.texctl2 |= TMC_idecal_enable; - - if (format == GL_RGB || format == GL_LUMINANCE) - mmesa->hw.alpha_sel = AC_alphasel_diffused; - else - mmesa->hw.alpha_sel = AC_alphasel_fromtex; - break; - - case GL_MODULATE: - t->setup.texctl |= TMC_tmodulate_enable; - - if (format == GL_ALPHA) - t->setup.texctl2 |= (TMC_idecal_enable | - TMC_decaldis_enable); - - if (format == GL_RGB || format == GL_LUMINANCE) - mmesa->hw.alpha_sel = AC_alphasel_diffused; - else - mmesa->hw.alpha_sel = AC_alphasel_modulated; - break; - - case GL_DECAL: - if (format == GL_RGB || format == GL_RGBA) - t->setup.texctl2 |= TMC_decalblend_enable; - else - t->setup.texctl2 |= TMC_idecal_enable; - - mmesa->hw.alpha_sel = AC_alphasel_diffused; - break; - - case GL_BLEND: - if (format == GL_ALPHA) { - t->setup.texctl2 |= TMC_idecal_enable; - mmesa->hw.alpha_sel = AC_alphasel_modulated; - } else { - t->texenv_fallback = GL_TRUE; - } - break; - - default: - break; - } -} - - -#define MGA_REPLACE 0 -#define MGA_MODULATE 1 -#define MGA_DECAL 2 -#define MGA_ADD 3 -#define MGA_MAX_COMBFUNC 4 - -static const GLuint g400_color_combine[][MGA_MAX_COMBFUNC] = -{ - /* Unit 0: - */ - { - /* GL_REPLACE - * Cv = Cs - * Av = Af - */ - (TD0_color_sel_arg1 | - TD0_alpha_arg2_diffuse | - TD0_alpha_sel_arg2), - - /* GL_MODULATE - * Cv = Cf Cs - * Av = Af - */ - (TD0_color_arg2_diffuse | - TD0_color_sel_mul | - TD0_alpha_arg2_diffuse | - TD0_alpha_sel_arg2), - - /* GL_DECAL - * Cv = Cs - * Av = Af - */ - (TD0_color_sel_arg1 | - TD0_alpha_arg2_diffuse | - TD0_alpha_sel_arg2), - - /* GL_ADD - * Cv = Cf + Cs - * Av = Af - */ - (TD0_color_arg2_diffuse | - TD0_color_add_add | - TD0_color_sel_add | - TD0_alpha_arg2_diffuse | - TD0_alpha_sel_arg2), - }, - - /* Unit 1: - */ - { - /* GL_REPLACE - * Cv = Cs - * Av = Ap - */ - (TD0_color_sel_arg1 | - TD0_alpha_arg2_prevstage | - TD0_alpha_sel_arg2), - - /* GL_MODULATE - * Cv = Cp Cs - * Av = Ap - */ - (TD0_color_arg2_prevstage | - TD0_color_sel_mul | - TD0_alpha_arg2_prevstage | - TD0_alpha_sel_arg2), - - /* GL_DECAL - * Cv = Cs - * Av = Ap - */ - (TD0_color_sel_arg1 | - TD0_alpha_arg2_prevstage | - TD0_alpha_sel_arg2), - - /* GL_ADD - * Cv = Cp + Cs - * Av = Ap - */ - (TD0_color_arg2_prevstage | - TD0_color_add_add | - TD0_color_sel_add | - TD0_alpha_arg2_prevstage | - TD0_alpha_sel_arg2), - }, -}; - -static const GLuint g400_color_alpha_combine[][MGA_MAX_COMBFUNC] = -{ - /* Unit 0: - */ - { - /* GL_REPLACE - * Cv = Cs - * Av = As - */ - (TD0_color_sel_arg1 | - TD0_alpha_sel_arg1), - - /* GL_MODULATE - * Cv = Cf Cs - * Av = Af As - */ - (TD0_color_arg2_diffuse | - TD0_color_sel_mul | - TD0_alpha_arg2_diffuse | - TD0_alpha_sel_mul), - - /* GL_DECAL - * tmp = Cf ( 1 - As ) - * Cv = tmp + Cs As - * Av = Af - */ - (TD0_color_arg2_diffuse | - TD0_color_alpha_currtex | - TD0_color_alpha1inv_enable | - TD0_color_arg1mul_alpha1 | - TD0_color_blend_enable | - TD0_color_arg1add_mulout | - TD0_color_arg2add_mulout | - TD0_color_add_add | - TD0_color_sel_add | - TD0_alpha_arg2_diffuse | - TD0_alpha_sel_arg2), - - /* GL_ADD - * Cv = Cf + Cs - * Av = Af As - */ - (TD0_color_arg2_diffuse | - TD0_color_add_add | - TD0_color_sel_add | - TD0_alpha_arg2_diffuse | - TD0_alpha_sel_mul), - }, - - /* Unit 1: - */ - { - /* GL_REPLACE - * Cv = Cs - * Av = As - */ - (TD0_color_sel_arg1 | - TD0_alpha_sel_arg1), - - /* GL_MODULATE - * Cv = Cp Cs - * Av = Ap As - */ - (TD0_color_arg2_prevstage | - TD0_color_sel_mul | - TD0_alpha_arg2_prevstage | - TD0_alpha_sel_mul), - - /* GL_DECAL - * tmp = Cp ( 1 - As ) - * Cv = tmp + Cs As - * Av = Ap - */ - (TD0_color_arg2_prevstage | - TD0_color_alpha_currtex | - TD0_color_alpha1inv_enable | - TD0_color_arg1mul_alpha1 | - TD0_color_blend_enable | - TD0_color_arg1add_mulout | - TD0_color_arg2add_mulout | - TD0_color_add_add | - TD0_color_sel_add | - TD0_alpha_arg2_prevstage | - TD0_alpha_sel_arg2), - - /* GL_ADD - * Cv = Cp + Cs - * Av = Ap As - */ - (TD0_color_arg2_prevstage | - TD0_color_add_add | - TD0_color_sel_add | - TD0_alpha_arg2_prevstage | - TD0_alpha_sel_mul), - }, -}; - -static const GLuint g400_alpha_combine[][MGA_MAX_COMBFUNC] = -{ - /* Unit 0: - */ - { - /* GL_REPLACE - * Cv = Cf - * Av = As - */ - (TD0_color_arg2_diffuse | - TD0_color_sel_arg2 | - TD0_alpha_sel_arg1), - - /* GL_MODULATE - * Cv = Cf - * Av = Af As - */ - (TD0_color_arg2_diffuse | - TD0_color_sel_arg2 | - TD0_alpha_arg2_diffuse | - TD0_alpha_sel_mul), - - /* GL_DECAL (undefined) - * Cv = Cf - * Av = Af - */ - (TD0_color_arg2_diffuse | - TD0_color_sel_arg2 | - TD0_alpha_arg2_diffuse | - TD0_alpha_sel_arg2), - - /* GL_ADD - * Cv = Cf - * Av = Af As - */ - (TD0_color_arg2_diffuse | - TD0_color_sel_arg2 | - TD0_alpha_arg2_diffuse | - TD0_alpha_sel_mul), - }, - - /* Unit 1: - */ - { - /* GL_REPLACE - * Cv = Cp - * Av = As - */ - (TD0_color_arg2_prevstage | - TD0_color_sel_arg2 | - TD0_alpha_sel_arg1), - - /* GL_MODULATE - * Cv = Cp - * Av = Ap As - */ - (TD0_color_arg2_prevstage | - TD0_color_sel_arg2 | - TD0_alpha_arg2_prevstage | - TD0_alpha_sel_mul), - - /* GL_DECAL (undefined) - * Cv = Cp - * Av = Ap - */ - (TD0_color_arg2_prevstage | - TD0_color_sel_arg2 | - TD0_alpha_arg2_prevstage | - TD0_alpha_sel_arg2), - - /* GL_ADD - * Cv = Cp - * Av = Ap As - */ - (TD0_color_arg2_prevstage | - TD0_color_sel_arg2 | - TD0_alpha_arg2_prevstage | - TD0_alpha_sel_mul), - }, -}; - -static GLboolean mgaUpdateTextureEnvBlend( struct gl_context *ctx, int unit ) -{ - mgaContextPtr mmesa = MGA_CONTEXT(ctx); - const int source = mmesa->tmu_source[unit]; - const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[source]; - const struct gl_texture_object *tObj = texUnit->_Current; - GLuint *reg = ((GLuint *)&mmesa->setup.tdualstage0 + unit); - GLenum format = tObj->Image[0][tObj->BaseLevel]->_BaseFormat; - - *reg = 0; - - if (format == GL_ALPHA) { - /* Cv = Cf */ - *reg |= (TD0_color_arg2_diffuse | - TD0_color_sel_arg2); - /* Av = Af As */ - *reg |= (TD0_alpha_arg2_diffuse | - TD0_alpha_sel_mul); - return GL_TRUE; - } - - /* C1 = Cf ( 1 - Cs ) */ - *reg |= (TD0_color_arg1_inv_enable | - TD0_color_arg2_diffuse | - TD0_color_sel_mul); - - if (format == GL_RGB || format == GL_LUMINANCE) { - /* A1 = Af */ - *reg |= (TD0_alpha_arg2_diffuse | - TD0_alpha_sel_arg2); - } else - if (format == GL_RGBA || format == GL_LUMINANCE_ALPHA) { - /* A1 = Af As */ - *reg |= (TD0_alpha_arg2_diffuse | - TD0_alpha_sel_mul); - } else - if (format == GL_INTENSITY) { - /* A1 = Af ( 1 - As ) */ - *reg |= (TD0_alpha_arg1_inv_enable | - TD0_alpha_arg2_diffuse | - TD0_alpha_sel_mul); - } - - if (RGB_ZERO(mmesa->envcolor[source]) && - (format != GL_INTENSITY || ALPHA_ZERO(mmesa->envcolor[source]))) - return GL_TRUE; /* all done */ - - if (ctx->Texture._EnabledUnits == 0x03) - return GL_FALSE; /* need both units */ - - mmesa->force_dualtex = GL_TRUE; - reg = &mmesa->setup.tdualstage1; - *reg = 0; - - if (RGB_ZERO(mmesa->envcolor[source])) { - /* Cv = C1 */ - *reg |= (TD0_color_arg2_prevstage | - TD0_color_sel_arg2); - } else - if (RGB_ONE(mmesa->envcolor[source])) { - /* Cv = C1 + Cs */ - *reg |= (TD0_color_arg2_prevstage | - TD0_color_add_add | - TD0_color_sel_add); - } else - if (RGBA_EQUAL(mmesa->envcolor[source])) { - /* Cv = C1 + Cc Cs */ - *reg |= (TD0_color_arg2_prevstage | - TD0_color_alpha_fcol | - TD0_color_arg2mul_alpha2 | - TD0_color_arg1add_mulout | - TD0_color_add_add | - TD0_color_sel_add); - - mmesa->setup.fcol = mmesa->envcolor[source]; - } else { - return GL_FALSE; - } - - if (format != GL_INTENSITY || ALPHA_ZERO(mmesa->envcolor[source])) { - /* Av = A1 */ - *reg |= (TD0_alpha_arg2_prevstage | - TD0_alpha_sel_arg2); - } else - if (ALPHA_ONE(mmesa->envcolor[source])) { - /* Av = A1 + As */ - *reg |= (TD0_alpha_arg2_prevstage | - TD0_alpha_add_enable | - TD0_alpha_sel_add); - } else { - return GL_FALSE; - } - - return GL_TRUE; -} - -static void mgaUpdateTextureEnvG400( struct gl_context *ctx, GLuint unit ) -{ - mgaContextPtr mmesa = MGA_CONTEXT( ctx ); - const int source = mmesa->tmu_source[unit]; - const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[source]; - const struct gl_texture_object *tObj = texUnit->_Current; - GLuint *reg = ((GLuint *)&mmesa->setup.tdualstage0 + unit); - mgaTextureObjectPtr t = (mgaTextureObjectPtr) tObj->DriverData; - GLenum format = tObj->Image[0][tObj->BaseLevel]->_BaseFormat; - - if (tObj != ctx->Texture.Unit[source].CurrentTex[TEXTURE_2D_INDEX] && - tObj != ctx->Texture.Unit[source].CurrentTex[TEXTURE_RECT_INDEX]) - return; - - switch (ctx->Texture.Unit[source].EnvMode) { - case GL_REPLACE: - if (format == GL_ALPHA) { - *reg = g400_alpha_combine[unit][MGA_REPLACE]; - } else if (format == GL_RGB || format == GL_LUMINANCE) { - *reg = g400_color_combine[unit][MGA_REPLACE]; - } else { - *reg = g400_color_alpha_combine[unit][MGA_REPLACE]; - } - break; - - case GL_MODULATE: - if (format == GL_ALPHA) { - *reg = g400_alpha_combine[unit][MGA_MODULATE]; - } else if (format == GL_RGB || format == GL_LUMINANCE) { - *reg = g400_color_combine[unit][MGA_MODULATE]; - } else { - *reg = g400_color_alpha_combine[unit][MGA_MODULATE]; - } - break; - - case GL_DECAL: - if (format == GL_RGB) { - *reg = g400_color_combine[unit][MGA_DECAL]; - } else if (format == GL_RGBA) { - *reg = g400_color_alpha_combine[unit][MGA_DECAL]; - if (ctx->Texture._EnabledUnits != 0x03) { - /* Linear blending mode needs dual texturing enabled */ - *(reg+1) = (TD0_color_arg2_prevstage | - TD0_color_sel_arg2 | - TD0_alpha_arg2_prevstage | - TD0_alpha_sel_arg2); - mmesa->force_dualtex = GL_TRUE; - } - } else { - /* Undefined */ - *reg = g400_alpha_combine[unit][MGA_DECAL]; - } - break; - - case GL_ADD: - if (format == GL_ALPHA) { - *reg = g400_alpha_combine[unit][MGA_ADD]; - } else if (format == GL_RGB || format == GL_LUMINANCE) { - *reg = g400_color_combine[unit][MGA_ADD]; - } else if (format == GL_RGBA || format == GL_LUMINANCE_ALPHA) { - *reg = g400_color_alpha_combine[unit][MGA_ADD]; - } else if (format == GL_INTENSITY) { - /* Cv = Cf + Cs - * Av = Af + As - */ - if (unit == 0) { - *reg = (TD0_color_arg2_diffuse | - TD0_color_add_add | - TD0_color_sel_add | - TD0_alpha_arg2_diffuse | - TD0_alpha_add_enable | - TD0_alpha_sel_add); - } else { - *reg = (TD0_color_arg2_prevstage | - TD0_color_add_add | - TD0_color_sel_add | - TD0_alpha_arg2_prevstage | - TD0_alpha_add_enable | - TD0_alpha_sel_add); - } - } - break; - - case GL_BLEND: - if (!mgaUpdateTextureEnvBlend(ctx, unit)) - t->texenv_fallback = GL_TRUE; - break; - - case GL_COMBINE: - if (!mgaUpdateTextureEnvCombine(ctx, unit)) - t->texenv_fallback = GL_TRUE; - break; - default: - break; - } -} - -static void disable_tex( struct gl_context *ctx, int unit ) -{ - mgaContextPtr mmesa = MGA_CONTEXT( ctx ); - - /* Texture unit disabled */ - - if ( mmesa->CurrentTexObj[unit] != NULL ) { - /* The old texture is no longer bound to this texture unit. - * Mark it as such. - */ - - mmesa->CurrentTexObj[unit]->base.bound &= ~(1UL << unit); - mmesa->CurrentTexObj[unit] = NULL; - } - - if ( unit != 0 && !mmesa->force_dualtex ) { - mmesa->setup.tdualstage1 = mmesa->setup.tdualstage0; - } - - if ( ctx->Texture._EnabledUnits == 0 ) { - mmesa->setup.dwgctl &= DC_opcod_MASK; - mmesa->setup.dwgctl |= DC_opcod_trap; - mmesa->hw.alpha_sel = AC_alphasel_diffused; - } - - mmesa->dirty |= MGA_UPLOAD_CONTEXT | (MGA_UPLOAD_TEX0 << unit); -} - -static GLboolean enable_tex( struct gl_context *ctx, int unit ) -{ - mgaContextPtr mmesa = MGA_CONTEXT(ctx); - const int source = mmesa->tmu_source[unit]; - const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[source]; - const struct gl_texture_object *tObj = texUnit->_Current; - mgaTextureObjectPtr t = (mgaTextureObjectPtr) tObj->DriverData; - - /* Upload teximages (not pipelined) - */ - if (t->base.dirty_images[0]) { - FLUSH_BATCH( mmesa ); - mgaSetTexImages( mmesa, tObj ); - if ( t->base.memBlock == NULL ) { - return GL_FALSE; - } - } - - return GL_TRUE; -} - -static GLboolean update_tex_common( struct gl_context *ctx, int unit ) -{ - mgaContextPtr mmesa = MGA_CONTEXT(ctx); - const int source = mmesa->tmu_source[unit]; - const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[source]; - struct gl_texture_object *tObj = texUnit->_Current; - mgaTextureObjectPtr t = (mgaTextureObjectPtr) tObj->DriverData; - - /* Fallback if there's a texture border */ - if ( tObj->Image[0][tObj->BaseLevel]->Border > 0 ) { - return GL_FALSE; - } - - - /* Update state if this is a different texture object to last - * time. - */ - if ( mmesa->CurrentTexObj[unit] != t ) { - if ( mmesa->CurrentTexObj[unit] != NULL ) { - /* The old texture is no longer bound to this texture unit. - * Mark it as such. - */ - - mmesa->CurrentTexObj[unit]->base.bound &= ~(1UL << unit); - } - - mmesa->CurrentTexObj[unit] = t; - t->base.bound |= (1UL << unit); - - driUpdateTextureLRU( (driTextureObject *) t ); /* done too often */ - } - - /* register setup */ - if ( unit == 1 ) { - mmesa->setup.tdualstage1 = mmesa->setup.tdualstage0; - } - - t->texenv_fallback = GL_FALSE; - - /* Set this before mgaUpdateTextureEnvG400() since - * GL_ARB_texture_env_crossbar may have to disable texturing. - */ - mmesa->setup.dwgctl &= DC_opcod_MASK; - mmesa->setup.dwgctl |= DC_opcod_texture_trap; - - /* FIXME: The Radeon has some cached state so that it can avoid calling - * FIXME: UpdateTextureEnv in some cases. Is that possible here? - */ - if (MGA_IS_G400(mmesa)) { - /* G400: Regardless of texture env mode, we use the alpha from the - * texture unit (AC_alphasel_fromtex) since it will have already - * been modulated by the incoming fragment color, if needed. - * We don't want (AC_alphasel_modulate) since that'll effectively - * do the modulation twice. - */ - mmesa->hw.alpha_sel = AC_alphasel_fromtex; - - mgaUpdateTextureEnvG400( ctx, unit ); - } else { - mgaUpdateTextureEnvG200( ctx, unit ); - } - - t->setup.texctl2 &= TMC_dualtex_MASK; - if (ctx->Texture._EnabledUnits == 0x03 || mmesa->force_dualtex) { - t->setup.texctl2 |= TMC_dualtex_enable; - } - - mmesa->dirty |= MGA_UPLOAD_CONTEXT | (MGA_UPLOAD_TEX0 << unit); - - FALLBACK( ctx, MGA_FALLBACK_BORDER_MODE, t->border_fallback ); - return !t->border_fallback && !t->texenv_fallback; -} - - -static GLboolean updateTextureUnit( struct gl_context *ctx, int unit ) -{ - mgaContextPtr mmesa = MGA_CONTEXT( ctx ); - const int source = mmesa->tmu_source[unit]; - const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[source]; - - - if ( texUnit->_ReallyEnabled == TEXTURE_2D_BIT || - texUnit->_ReallyEnabled == TEXTURE_RECT_BIT ) { - return(enable_tex( ctx, unit ) && - update_tex_common( ctx, unit )); - } - else if ( texUnit->_ReallyEnabled ) { - return GL_FALSE; - } - else { - disable_tex( ctx, unit ); - return GL_TRUE; - } -} - -/* The G400 is now programmed quite differently wrt texture environment. - */ -void mgaUpdateTextureState( struct gl_context *ctx ) -{ - mgaContextPtr mmesa = MGA_CONTEXT( ctx ); - GLboolean ok; - unsigned i; - - mmesa->force_dualtex = GL_FALSE; - mmesa->fcol_used = GL_FALSE; - - /* This works around a quirk with the MGA hardware. If only OpenGL - * TEXTURE1 is enabled, then the hardware TEXTURE0 must be used. The - * hardware TEXTURE1 can ONLY be used when hardware TEXTURE0 is also used. - */ - - mmesa->tmu_source[0] = 0; - mmesa->tmu_source[1] = 1; - - if ((ctx->Texture._EnabledUnits & 0x03) == 0x02) { - /* only texture 1 enabled */ - mmesa->tmu_source[0] = 1; - mmesa->tmu_source[1] = 0; - } - - for ( i = 0, ok = GL_TRUE - ; (i < ctx->Const.MaxTextureUnits) && ok - ; i++ ) { - ok = updateTextureUnit( ctx, i ); - } - - FALLBACK( ctx, MGA_FALLBACK_TEXTURE, !ok ); -} |