1430 lines
43 KiB
C
1430 lines
43 KiB
C
/* Hack alert:
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* fxDDReadPixels888 does not convert 8A8R8G8B into 5R5G5B
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*/
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/* $Id: fxdd.c,v 1.101 2003/10/09 15:12:21 dborca Exp $ */
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/*
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* Mesa 3-D graphics library
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* Version: 5.1
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*
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* Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/* Authors:
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* David Bucciarelli
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* Brian Paul
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* Daryll Strauss
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* Keith Whitwell
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* Daniel Borca
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* Hiroshi Morii
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*/
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/* fxdd.c - 3Dfx VooDoo Mesa device driver functions */
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#ifdef HAVE_CONFIG_H
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#include "conf.h"
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#endif
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#if defined(FX)
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#include "image.h"
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#include "mtypes.h"
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#include "fxdrv.h"
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#include "enums.h"
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#include "extensions.h"
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#include "macros.h"
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#include "texstore.h"
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#include "teximage.h"
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#include "swrast/swrast.h"
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#include "swrast_setup/swrast_setup.h"
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#include "tnl/tnl.h"
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#include "tnl/t_context.h"
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#include "tnl/t_pipeline.h"
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#include "array_cache/acache.h"
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/* These lookup table are used to extract RGB values in [0,255] from
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* 16-bit pixel values.
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*/
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GLubyte FX_PixelToR[0x10000];
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GLubyte FX_PixelToG[0x10000];
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GLubyte FX_PixelToB[0x10000];
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/* lookup table for scaling 4 bit colors up to 8 bits */
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GLuint FX_rgb_scale_4[16] = {
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0, 17, 34, 51, 68, 85, 102, 119,
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136, 153, 170, 187, 204, 221, 238, 255
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};
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/* lookup table for scaling 5 bit colors up to 8 bits */
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GLuint FX_rgb_scale_5[32] = {
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0, 8, 16, 25, 33, 41, 49, 58,
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66, 74, 82, 90, 99, 107, 115, 123,
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132, 140, 148, 156, 165, 173, 181, 189,
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197, 206, 214, 222, 230, 239, 247, 255
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};
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/* lookup table for scaling 6 bit colors up to 8 bits */
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GLuint FX_rgb_scale_6[64] = {
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0, 4, 8, 12, 16, 20, 24, 28,
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32, 36, 40, 45, 49, 53, 57, 61,
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65, 69, 73, 77, 81, 85, 89, 93,
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97, 101, 105, 109, 113, 117, 121, 125,
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130, 134, 138, 142, 146, 150, 154, 158,
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162, 166, 170, 174, 178, 182, 186, 190,
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194, 198, 202, 206, 210, 215, 219, 223,
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227, 231, 235, 239, 243, 247, 251, 255
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};
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/*
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* Initialize the FX_PixelTo{RGB} arrays.
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* Input: bgrOrder - if TRUE, pixels are in BGR order, else RGB order.
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*/
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void
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fxInitPixelTables(fxMesaContext fxMesa, GLboolean bgrOrder)
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{
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GLuint pixel;
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fxMesa->bgrOrder = bgrOrder;
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for (pixel = 0; pixel <= 0xffff; pixel++) {
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GLuint r, g, b;
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if (bgrOrder) {
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r = (pixel & 0x001F) << 3;
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g = (pixel & 0x07E0) >> 3;
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b = (pixel & 0xF800) >> 8;
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}
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else {
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r = (pixel & 0xF800) >> 8;
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g = (pixel & 0x07E0) >> 3;
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b = (pixel & 0x001F) << 3;
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}
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/* fill in low-order bits with proper rounding */
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r = (GLuint)(((double)r * 255. / 0xF8) + 0.5);
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g = (GLuint)(((double)g * 255. / 0xFC) + 0.5);
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b = (GLuint)(((double)b * 255. / 0xF8) + 0.5);
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FX_PixelToR[pixel] = r;
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FX_PixelToG[pixel] = g;
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FX_PixelToB[pixel] = b;
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}
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}
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/*
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* Disable color by masking out R, G, B, A
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*/
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static void fxDisableColor (fxMesaContext fxMesa)
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{
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if (fxMesa->colDepth != 16) {
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/* 32bpp mode or 15bpp mode */
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fxMesa->Glide.grColorMaskExt(FXFALSE, FXFALSE, FXFALSE, FXFALSE);
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} else {
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/* 16 bpp mode */
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grColorMask(FXFALSE, FXFALSE);
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}
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}
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/**********************************************************************/
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/***** Miscellaneous functions *****/
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/**********************************************************************/
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/* Return buffer size information */
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static void
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fxDDBufferSize(GLframebuffer *buffer, GLuint *width, GLuint *height)
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{
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GET_CURRENT_CONTEXT(ctx);
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if (ctx && FX_CONTEXT(ctx)) {
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fxMesaContext fxMesa = FX_CONTEXT(ctx);
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if (TDFX_DEBUG & VERBOSE_DRIVER) {
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fprintf(stderr, "%s(...)\n", __FUNCTION__);
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}
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*width = fxMesa->width;
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*height = fxMesa->height;
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}
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}
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/* Implements glClearColor() */
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static void
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fxDDClearColor(GLcontext * ctx, const GLfloat color[4])
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{
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fxMesaContext fxMesa = FX_CONTEXT(ctx);
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GLubyte col[4];
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if (TDFX_DEBUG & VERBOSE_DRIVER) {
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fprintf(stderr, "%s(%f, %f, %f, %f)\n", __FUNCTION__,
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color[0], color[1], color[2], color[3]);
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}
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CLAMPED_FLOAT_TO_UBYTE(col[0], color[0]);
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CLAMPED_FLOAT_TO_UBYTE(col[1], color[1]);
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CLAMPED_FLOAT_TO_UBYTE(col[2], color[2]);
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CLAMPED_FLOAT_TO_UBYTE(col[3], color[3]);
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fxMesa->clearC = FXCOLOR4(col);
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fxMesa->clearA = col[3];
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}
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/* Clear the color and/or depth buffers */
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static void fxDDClear( GLcontext *ctx,
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GLbitfield mask, GLboolean all,
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GLint x, GLint y, GLint width, GLint height )
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{
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fxMesaContext fxMesa = FX_CONTEXT(ctx);
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GLbitfield softwareMask = mask & (DD_ACCUM_BIT);
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const GLuint stencil_size = fxMesa->haveHwStencil ? ctx->Visual.stencilBits : 0;
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const FxU32 clearD = (FxU32) (((1 << ctx->Visual.depthBits) - 1) * ctx->Depth.Clear);
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const FxU8 clearS = (FxU8) (ctx->Stencil.Clear & 0xff);
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if ( TDFX_DEBUG & MESA_VERBOSE ) {
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fprintf( stderr, "%s( %d, %d, %d, %d )\n",
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__FUNCTION__, (int) x, (int) y, (int) width, (int) height );
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}
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/* Need this check to respond to glScissor and clipping updates */
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/* should also take care of FX_NEW_COLOR_MASK, FX_NEW_STENCIL, depth? */
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if (fxMesa->new_state & FX_NEW_SCISSOR) {
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fxSetupScissor(ctx);
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fxMesa->new_state &= ~FX_NEW_SCISSOR;
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}
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/* we can't clear accum buffers */
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mask &= ~(DD_ACCUM_BIT);
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/*
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* As per GL spec, stencil masking should be obeyed when clearing
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*/
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if (mask & DD_STENCIL_BIT) {
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if (!fxMesa->haveHwStencil || fxMesa->unitsState.stencilWriteMask != 0xff) {
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/* Napalm seems to have trouble with stencil write masks != 0xff */
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/* do stencil clear in software */
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softwareMask |= DD_STENCIL_BIT;
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mask &= ~(DD_STENCIL_BIT);
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}
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}
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/*
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* As per GL spec, color masking should be obeyed when clearing
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*/
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if (ctx->Visual.greenBits != 8 && ctx->Visual.greenBits != 5) {
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/* can only do color masking if running in 24/32bpp on Napalm */
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if (ctx->Color.ColorMask[RCOMP] != ctx->Color.ColorMask[GCOMP] ||
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ctx->Color.ColorMask[GCOMP] != ctx->Color.ColorMask[BCOMP]) {
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softwareMask |= (mask & (DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT));
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mask &= ~(DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT);
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}
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}
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if (fxMesa->haveHwStencil) {
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/*
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* If we want to clear stencil, it must be enabled
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* in the HW, even if the stencil test is not enabled
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* in the OGL state.
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*/
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BEGIN_BOARD_LOCK();
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if (mask & DD_STENCIL_BIT) {
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fxMesa->Glide.grStencilMaskExt(0xff /*fxMesa->unitsState.stencilWriteMask*/);
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/* set stencil ref value = desired clear value */
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fxMesa->Glide.grStencilFuncExt(GR_CMP_ALWAYS, clearS, 0xff);
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fxMesa->Glide.grStencilOpExt(GR_STENCILOP_REPLACE,
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GR_STENCILOP_REPLACE, GR_STENCILOP_REPLACE);
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grEnable(GR_STENCIL_MODE_EXT);
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}
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else {
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grDisable(GR_STENCIL_MODE_EXT);
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}
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END_BOARD_LOCK();
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}
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/*
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* This may be ugly, but it's needed in order to work around a number
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* of Glide bugs.
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*/
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BEGIN_CLIP_LOOP();
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{
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/*
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* This could probably be done fancier but doing each possible case
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* explicitly is less error prone.
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*/
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switch (mask & ~DD_STENCIL_BIT) {
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case DD_BACK_LEFT_BIT | DD_DEPTH_BIT:
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/* back buffer & depth */
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/* FX_grColorMaskv_NoLock(ctx, true4); */ /* work around Voodoo3 bug */
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grDepthMask(FXTRUE);
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grRenderBuffer(GR_BUFFER_BACKBUFFER);
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if (stencil_size > 0) {
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fxMesa->Glide.grBufferClearExt(fxMesa->clearC,
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fxMesa->clearA,
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clearD, clearS);
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}
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else
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grBufferClear(fxMesa->clearC,
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fxMesa->clearA,
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clearD);
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if (!fxMesa->unitsState.depthTestEnabled) {
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grDepthMask(FXFALSE);
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}
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break;
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case DD_FRONT_LEFT_BIT | DD_DEPTH_BIT:
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/* XXX it appears that the depth buffer isn't cleared when
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* glRenderBuffer(GR_BUFFER_FRONTBUFFER) is set.
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* This is a work-around/
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*/
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/* clear depth */
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grDepthMask(FXTRUE);
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grRenderBuffer(GR_BUFFER_BACKBUFFER);
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fxDisableColor(fxMesa);
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if (stencil_size > 0)
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fxMesa->Glide.grBufferClearExt(fxMesa->clearC,
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fxMesa->clearA,
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clearD, clearS);
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else
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grBufferClear(fxMesa->clearC,
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fxMesa->clearA,
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clearD);
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/* clear front */
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fxSetupColorMask(ctx);
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grRenderBuffer(GR_BUFFER_FRONTBUFFER);
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if (stencil_size > 0)
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fxMesa->Glide.grBufferClearExt(fxMesa->clearC,
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fxMesa->clearA,
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clearD, clearS);
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else
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grBufferClear(fxMesa->clearC,
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fxMesa->clearA,
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clearD);
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if (!fxMesa->unitsState.depthTestEnabled) {
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grDepthMask(FXFALSE);
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}
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break;
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case DD_BACK_LEFT_BIT:
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/* back buffer only */
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grDepthMask(FXFALSE);
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grRenderBuffer(GR_BUFFER_BACKBUFFER);
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if (stencil_size > 0)
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fxMesa->Glide.grBufferClearExt(fxMesa->clearC,
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fxMesa->clearA,
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clearD, clearS);
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else
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grBufferClear(fxMesa->clearC,
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fxMesa->clearA,
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clearD);
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if (fxMesa->unitsState.depthTestEnabled) {
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grDepthMask(FXTRUE);
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}
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break;
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case DD_FRONT_LEFT_BIT:
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/* front buffer only */
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grDepthMask(FXFALSE);
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grRenderBuffer(GR_BUFFER_FRONTBUFFER);
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if (stencil_size > 0)
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fxMesa->Glide.grBufferClearExt(fxMesa->clearC,
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fxMesa->clearA,
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clearD, clearS);
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else
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grBufferClear(fxMesa->clearC,
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fxMesa->clearA,
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clearD);
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if (fxMesa->unitsState.depthTestEnabled) {
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grDepthMask(FXTRUE);
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}
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break;
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case DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT:
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/* front and back */
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grDepthMask(FXFALSE);
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grRenderBuffer(GR_BUFFER_BACKBUFFER);
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if (stencil_size > 0)
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fxMesa->Glide.grBufferClearExt(fxMesa->clearC,
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fxMesa->clearA,
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clearD, clearS);
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else
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grBufferClear(fxMesa->clearC,
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fxMesa->clearA,
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clearD);
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grRenderBuffer(GR_BUFFER_FRONTBUFFER);
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if (stencil_size > 0)
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fxMesa->Glide.grBufferClearExt(fxMesa->clearC,
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fxMesa->clearA,
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clearD, clearS);
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else
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grBufferClear(fxMesa->clearC,
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fxMesa->clearA,
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clearD);
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if (fxMesa->unitsState.depthTestEnabled) {
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grDepthMask(FXTRUE);
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}
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break;
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case DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT | DD_DEPTH_BIT:
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/* clear front */
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grDepthMask(FXFALSE);
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grRenderBuffer(GR_BUFFER_FRONTBUFFER);
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if (stencil_size > 0)
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fxMesa->Glide.grBufferClearExt(fxMesa->clearC,
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fxMesa->clearA,
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clearD, clearS);
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else
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grBufferClear(fxMesa->clearC,
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fxMesa->clearA,
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clearD);
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/* clear back and depth */
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grDepthMask(FXTRUE);
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grRenderBuffer(GR_BUFFER_BACKBUFFER);
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if (stencil_size > 0)
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fxMesa->Glide.grBufferClearExt(fxMesa->clearC,
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fxMesa->clearA,
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clearD, clearS);
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else
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grBufferClear(fxMesa->clearC,
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fxMesa->clearA,
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clearD);
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if (!fxMesa->unitsState.depthTestEnabled) {
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grDepthMask(FXFALSE);
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}
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break;
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case DD_DEPTH_BIT:
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/* just the depth buffer */
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grRenderBuffer(GR_BUFFER_BACKBUFFER);
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fxDisableColor(fxMesa);
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grDepthMask(FXTRUE);
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if (stencil_size > 0)
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fxMesa->Glide.grBufferClearExt(fxMesa->clearC,
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fxMesa->clearA,
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clearD, clearS);
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else
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grBufferClear(fxMesa->clearC,
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fxMesa->clearA,
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clearD);
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fxSetupColorMask(ctx);
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if (ctx->Color._DrawDestMask & FRONT_LEFT_BIT) {
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grRenderBuffer(GR_BUFFER_FRONTBUFFER);
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}
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if (!fxMesa->unitsState.depthTestEnabled) {
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grDepthMask(FXFALSE);
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}
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break;
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default:
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/* clear no color buffers or depth buffer but might clear stencil */
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if (stencil_size > 0 && (mask & DD_STENCIL_BIT)) {
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/* XXX need this RenderBuffer call to work around Glide bug */
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grRenderBuffer(GR_BUFFER_BACKBUFFER);
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grDepthMask(FXFALSE);
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|
fxDisableColor(fxMesa);
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fxMesa->Glide.grBufferClearExt(fxMesa->clearC,
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fxMesa->clearA,
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clearD, clearS);
|
|
if (fxMesa->unitsState.depthTestEnabled) {
|
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grDepthMask(FXTRUE);
|
|
}
|
|
fxSetupColorMask(ctx);
|
|
if (ctx->Color._DrawDestMask & FRONT_LEFT_BIT) {
|
|
grRenderBuffer(GR_BUFFER_FRONTBUFFER);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
END_CLIP_LOOP();
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|
|
|
if (fxMesa->haveHwStencil && (mask & DD_STENCIL_BIT)) {
|
|
/* We changed the stencil state above. Signal that we need to
|
|
* upload it again.
|
|
*/
|
|
fxMesa->new_state |= FX_NEW_STENCIL;
|
|
}
|
|
|
|
if (softwareMask)
|
|
_swrast_Clear( ctx, softwareMask, all, x, y, width, height );
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|
}
|
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|
|
|
|
/* Set the buffer used for drawing */
|
|
/* XXX support for separate read/draw buffers hasn't been tested */
|
|
static void
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fxDDSetDrawBuffer(GLcontext * ctx, GLenum mode)
|
|
{
|
|
fxMesaContext fxMesa = FX_CONTEXT(ctx);
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|
|
|
if (TDFX_DEBUG & VERBOSE_DRIVER) {
|
|
fprintf(stderr, "%s(%x)\n", __FUNCTION__, (int)mode);
|
|
}
|
|
|
|
if (mode == GL_FRONT_LEFT) {
|
|
fxMesa->currentFB = GR_BUFFER_FRONTBUFFER;
|
|
grRenderBuffer(fxMesa->currentFB);
|
|
}
|
|
else if (mode == GL_BACK_LEFT) {
|
|
fxMesa->currentFB = GR_BUFFER_BACKBUFFER;
|
|
grRenderBuffer(fxMesa->currentFB);
|
|
}
|
|
else if (mode == GL_NONE) {
|
|
fxDisableColor(fxMesa);
|
|
}
|
|
else {
|
|
/* we'll need a software fallback */
|
|
/* XXX not implemented */
|
|
}
|
|
|
|
/* update s/w fallback state */
|
|
_swrast_DrawBuffer(ctx, mode);
|
|
}
|
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|
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|
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static void
|
|
fxDDDrawBitmap(GLcontext * ctx, GLint px, GLint py,
|
|
GLsizei width, GLsizei height,
|
|
const struct gl_pixelstore_attrib *unpack,
|
|
const GLubyte * bitmap)
|
|
{
|
|
fxMesaContext fxMesa = FX_CONTEXT(ctx);
|
|
GrLfbInfo_t info;
|
|
FxU16 color;
|
|
const struct gl_pixelstore_attrib *finalUnpack;
|
|
struct gl_pixelstore_attrib scissoredUnpack;
|
|
|
|
/* check if there's any raster operations enabled which we can't handle */
|
|
if (ctx->Color.AlphaEnabled ||
|
|
ctx->Color.BlendEnabled ||
|
|
ctx->Depth.Test ||
|
|
ctx->Fog.Enabled ||
|
|
ctx->Color.ColorLogicOpEnabled ||
|
|
ctx->Stencil.Enabled ||
|
|
ctx->Scissor.Enabled ||
|
|
(ctx->DrawBuffer->UseSoftwareAlphaBuffers &&
|
|
ctx->Color.ColorMask[ACOMP]) ||
|
|
(ctx->Color._DrawDestMask != FRONT_LEFT_BIT &&
|
|
ctx->Color._DrawDestMask != BACK_LEFT_BIT)) {
|
|
_swrast_Bitmap(ctx, px, py, width, height, unpack, bitmap);
|
|
return;
|
|
}
|
|
|
|
|
|
if (ctx->Scissor.Enabled) {
|
|
/* This is a bit tricky, but by carefully adjusting the px, py,
|
|
* width, height, skipPixels and skipRows values we can do
|
|
* scissoring without special code in the rendering loop.
|
|
*
|
|
* KW: This code is never reached, see the test above.
|
|
*/
|
|
|
|
/* we'll construct a new pixelstore struct */
|
|
finalUnpack = &scissoredUnpack;
|
|
scissoredUnpack = *unpack;
|
|
if (scissoredUnpack.RowLength == 0)
|
|
scissoredUnpack.RowLength = width;
|
|
|
|
/* clip left */
|
|
if (px < ctx->Scissor.X) {
|
|
scissoredUnpack.SkipPixels += (ctx->Scissor.X - px);
|
|
width -= (ctx->Scissor.X - px);
|
|
px = ctx->Scissor.X;
|
|
}
|
|
/* clip right */
|
|
if (px + width >= ctx->Scissor.X + ctx->Scissor.Width) {
|
|
width -= (px + width - (ctx->Scissor.X + ctx->Scissor.Width));
|
|
}
|
|
/* clip bottom */
|
|
if (py < ctx->Scissor.Y) {
|
|
scissoredUnpack.SkipRows += (ctx->Scissor.Y - py);
|
|
height -= (ctx->Scissor.Y - py);
|
|
py = ctx->Scissor.Y;
|
|
}
|
|
/* clip top */
|
|
if (py + height >= ctx->Scissor.Y + ctx->Scissor.Height) {
|
|
height -= (py + height - (ctx->Scissor.Y + ctx->Scissor.Height));
|
|
}
|
|
|
|
if (width <= 0 || height <= 0)
|
|
return;
|
|
}
|
|
else {
|
|
finalUnpack = unpack;
|
|
}
|
|
|
|
/* compute pixel value */
|
|
{
|
|
GLint r = (GLint) (ctx->Current.RasterColor[0] * 255.0f);
|
|
GLint g = (GLint) (ctx->Current.RasterColor[1] * 255.0f);
|
|
GLint b = (GLint) (ctx->Current.RasterColor[2] * 255.0f);
|
|
/*GLint a = (GLint)(ctx->Current.RasterColor[3]*255.0f); */
|
|
if (fxMesa->bgrOrder)
|
|
color = (FxU16)
|
|
(((FxU16) 0xf8 & b) << (11 - 3)) |
|
|
(((FxU16) 0xfc & g) << (5 - 3 + 1)) | (((FxU16) 0xf8 & r) >> 3);
|
|
else
|
|
color = (FxU16)
|
|
(((FxU16) 0xf8 & r) << (11 - 3)) |
|
|
(((FxU16) 0xfc & g) << (5 - 3 + 1)) | (((FxU16) 0xf8 & b) >> 3);
|
|
}
|
|
|
|
info.size = sizeof(info);
|
|
if (!grLfbLock(GR_LFB_WRITE_ONLY,
|
|
fxMesa->currentFB,
|
|
GR_LFBWRITEMODE_565,
|
|
GR_ORIGIN_UPPER_LEFT, FXFALSE, &info)) {
|
|
fprintf(stderr, "%s: ERROR: locking the linear frame buffer\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
|
|
{
|
|
const GLint winX = 0;
|
|
const GLint winY = fxMesa->height - 1;
|
|
/* The dest stride depends on the hardware and whether we're drawing
|
|
* to the front or back buffer. This compile-time test seems to do
|
|
* the job for now.
|
|
*/
|
|
const GLint dstStride = info.strideInBytes / 2; /* stride in GLushorts */
|
|
|
|
GLint row;
|
|
/* compute dest address of bottom-left pixel in bitmap */
|
|
GLushort *dst = (GLushort *) info.lfbPtr
|
|
+ (winY - py) * dstStride + (winX + px);
|
|
|
|
for (row = 0; row < height; row++) {
|
|
const GLubyte *src =
|
|
(const GLubyte *) _mesa_image_address(finalUnpack,
|
|
bitmap, width, height,
|
|
GL_COLOR_INDEX, GL_BITMAP,
|
|
0, row, 0);
|
|
if (finalUnpack->LsbFirst) {
|
|
/* least significan bit first */
|
|
GLubyte mask = 1U << (finalUnpack->SkipPixels & 0x7);
|
|
GLint col;
|
|
for (col = 0; col < width; col++) {
|
|
if (*src & mask) {
|
|
dst[col] = color;
|
|
}
|
|
if (mask == 128U) {
|
|
src++;
|
|
mask = 1U;
|
|
}
|
|
else {
|
|
mask = mask << 1;
|
|
}
|
|
}
|
|
if (mask != 1)
|
|
src++;
|
|
}
|
|
else {
|
|
/* most significan bit first */
|
|
GLubyte mask = 128U >> (finalUnpack->SkipPixels & 0x7);
|
|
GLint col;
|
|
for (col = 0; col < width; col++) {
|
|
if (*src & mask) {
|
|
dst[col] = color;
|
|
}
|
|
if (mask == 1U) {
|
|
src++;
|
|
mask = 128U;
|
|
}
|
|
else {
|
|
mask = mask >> 1;
|
|
}
|
|
}
|
|
if (mask != 128)
|
|
src++;
|
|
}
|
|
dst -= dstStride;
|
|
}
|
|
}
|
|
|
|
grLfbUnlock(GR_LFB_WRITE_ONLY, fxMesa->currentFB);
|
|
}
|
|
|
|
|
|
static void
|
|
fxDDReadPixels(GLcontext * ctx, GLint x, GLint y,
|
|
GLsizei width, GLsizei height,
|
|
GLenum format, GLenum type,
|
|
const struct gl_pixelstore_attrib *packing, GLvoid * dstImage)
|
|
{
|
|
if (ctx->_ImageTransferState) {
|
|
_swrast_ReadPixels(ctx, x, y, width, height, format, type,
|
|
packing, dstImage);
|
|
return;
|
|
}
|
|
else {
|
|
fxMesaContext fxMesa = FX_CONTEXT(ctx);
|
|
GrLfbInfo_t info;
|
|
|
|
BEGIN_BOARD_LOCK();
|
|
if (grLfbLock(GR_LFB_READ_ONLY,
|
|
fxMesa->currentFB,
|
|
GR_LFBWRITEMODE_ANY,
|
|
GR_ORIGIN_UPPER_LEFT, FXFALSE, &info)) {
|
|
const GLint winX = 0;
|
|
const GLint winY = fxMesa->height - 1;
|
|
const GLint srcStride = info.strideInBytes / 2; /* stride in GLushorts */
|
|
const GLushort *src = (const GLushort *) info.lfbPtr
|
|
+ (winY - y) * srcStride + (winX + x);
|
|
GLubyte *dst = (GLubyte *) _mesa_image_address(packing, dstImage,
|
|
width, height, format,
|
|
type, 0, 0, 0);
|
|
GLint dstStride =
|
|
_mesa_image_row_stride(packing, width, format, type);
|
|
|
|
if (format == GL_RGB && type == GL_UNSIGNED_BYTE) {
|
|
/* convert 5R6G5B into 8R8G8B */
|
|
GLint row, col;
|
|
const GLint halfWidth = width >> 1;
|
|
const GLint extraPixel = (width & 1);
|
|
for (row = 0; row < height; row++) {
|
|
GLubyte *d = dst;
|
|
for (col = 0; col < halfWidth; col++) {
|
|
const GLuint pixel = ((const GLuint *) src)[col];
|
|
const GLint pixel0 = pixel & 0xffff;
|
|
const GLint pixel1 = pixel >> 16;
|
|
*d++ = FX_PixelToR[pixel0];
|
|
*d++ = FX_PixelToG[pixel0];
|
|
*d++ = FX_PixelToB[pixel0];
|
|
*d++ = FX_PixelToR[pixel1];
|
|
*d++ = FX_PixelToG[pixel1];
|
|
*d++ = FX_PixelToB[pixel1];
|
|
}
|
|
if (extraPixel) {
|
|
GLushort pixel = src[width - 1];
|
|
*d++ = FX_PixelToR[pixel];
|
|
*d++ = FX_PixelToG[pixel];
|
|
*d++ = FX_PixelToB[pixel];
|
|
}
|
|
dst += dstStride;
|
|
src -= srcStride;
|
|
}
|
|
}
|
|
else if (format == GL_RGBA && type == GL_UNSIGNED_BYTE) {
|
|
/* convert 5R6G5B into 8R8G8B8A */
|
|
GLint row, col;
|
|
const GLint halfWidth = width >> 1;
|
|
const GLint extraPixel = (width & 1);
|
|
for (row = 0; row < height; row++) {
|
|
GLubyte *d = dst;
|
|
for (col = 0; col < halfWidth; col++) {
|
|
const GLuint pixel = ((const GLuint *) src)[col];
|
|
const GLint pixel0 = pixel & 0xffff;
|
|
const GLint pixel1 = pixel >> 16;
|
|
*d++ = FX_PixelToR[pixel0];
|
|
*d++ = FX_PixelToG[pixel0];
|
|
*d++ = FX_PixelToB[pixel0];
|
|
*d++ = 255;
|
|
*d++ = FX_PixelToR[pixel1];
|
|
*d++ = FX_PixelToG[pixel1];
|
|
*d++ = FX_PixelToB[pixel1];
|
|
*d++ = 255;
|
|
}
|
|
if (extraPixel) {
|
|
const GLushort pixel = src[width - 1];
|
|
*d++ = FX_PixelToR[pixel];
|
|
*d++ = FX_PixelToG[pixel];
|
|
*d++ = FX_PixelToB[pixel];
|
|
*d++ = 255;
|
|
}
|
|
dst += dstStride;
|
|
src -= srcStride;
|
|
}
|
|
}
|
|
else if (format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5) {
|
|
/* directly memcpy 5R6G5B pixels into client's buffer */
|
|
const GLint widthInBytes = width * 2;
|
|
GLint row;
|
|
for (row = 0; row < height; row++) {
|
|
MEMCPY(dst, src, widthInBytes);
|
|
dst += dstStride;
|
|
src -= srcStride;
|
|
}
|
|
}
|
|
else {
|
|
grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->currentFB);
|
|
END_BOARD_LOCK();
|
|
_swrast_ReadPixels(ctx, x, y, width, height, format, type,
|
|
packing, dstImage);
|
|
return;
|
|
}
|
|
|
|
grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->currentFB);
|
|
}
|
|
END_BOARD_LOCK();
|
|
}
|
|
}
|
|
|
|
static void fxDDReadPixels555 (GLcontext * ctx,
|
|
GLint x, GLint y,
|
|
GLsizei width, GLsizei height,
|
|
GLenum format, GLenum type,
|
|
const struct gl_pixelstore_attrib *packing,
|
|
GLvoid *dstImage)
|
|
{
|
|
if (ctx->_ImageTransferState) {
|
|
_swrast_ReadPixels(ctx, x, y, width, height, format, type,
|
|
packing, dstImage);
|
|
return;
|
|
}
|
|
else {
|
|
fxMesaContext fxMesa = FX_CONTEXT(ctx);
|
|
GrLfbInfo_t info;
|
|
|
|
BEGIN_BOARD_LOCK();
|
|
if (grLfbLock(GR_LFB_READ_ONLY,
|
|
fxMesa->currentFB,
|
|
GR_LFBWRITEMODE_ANY,
|
|
GR_ORIGIN_UPPER_LEFT, FXFALSE, &info)) {
|
|
const GLint winX = 0;
|
|
const GLint winY = fxMesa->height - 1;
|
|
const GLint srcStride = info.strideInBytes / 2; /* stride in GLushorts */
|
|
const GLushort *src = (const GLushort *) info.lfbPtr
|
|
+ (winY - y) * srcStride + (winX + x);
|
|
GLubyte *dst = (GLubyte *) _mesa_image_address(packing, dstImage,
|
|
width, height, format,
|
|
type, 0, 0, 0);
|
|
GLint dstStride =
|
|
_mesa_image_row_stride(packing, width, format, type);
|
|
|
|
if (format == GL_RGB && type == GL_UNSIGNED_BYTE) {
|
|
/* convert 5R5G5B into 8R8G8B */
|
|
GLint row, col;
|
|
const GLint halfWidth = width >> 1;
|
|
const GLint extraPixel = (width & 1);
|
|
for (row = 0; row < height; row++) {
|
|
GLubyte *d = dst;
|
|
for (col = 0; col < halfWidth; col++) {
|
|
const GLuint pixel = ((const GLuint *) src)[col];
|
|
*d++ = FX_rgb_scale_5[ pixel & 0x1f];
|
|
*d++ = FX_rgb_scale_5[(pixel >> 5) & 0x1f];
|
|
*d++ = FX_rgb_scale_5[(pixel >> 10) & 0x1f];
|
|
*d++ = FX_rgb_scale_5[(pixel >> 16) & 0x1f];
|
|
*d++ = FX_rgb_scale_5[(pixel >> 21) & 0x1f];
|
|
*d++ = FX_rgb_scale_5[(pixel >> 26) & 0x1f];
|
|
}
|
|
if (extraPixel) {
|
|
GLushort pixel = src[width - 1];
|
|
*d++ = FX_rgb_scale_5[ pixel & 0x1f];
|
|
*d++ = FX_rgb_scale_5[(pixel >> 5) & 0x1f];
|
|
*d++ = FX_rgb_scale_5[(pixel >> 10) & 0x1f];
|
|
}
|
|
dst += dstStride;
|
|
src -= srcStride;
|
|
}
|
|
}
|
|
else if (format == GL_RGBA && type == GL_UNSIGNED_BYTE) {
|
|
/* convert 5R6G5B into 8R8G8B8A */
|
|
GLint row, col;
|
|
const GLint halfWidth = width >> 1;
|
|
const GLint extraPixel = (width & 1);
|
|
for (row = 0; row < height; row++) {
|
|
GLubyte *d = dst;
|
|
for (col = 0; col < halfWidth; col++) {
|
|
const GLuint pixel = ((const GLuint *) src)[col];
|
|
*d++ = FX_rgb_scale_5[ pixel & 0x1f];
|
|
*d++ = FX_rgb_scale_5[(pixel >> 5) & 0x1f];
|
|
*d++ = FX_rgb_scale_5[(pixel >> 10) & 0x1f];
|
|
*d++ = (pixel & 0x8000) ? 255 : 0;
|
|
*d++ = FX_rgb_scale_5[(pixel >> 16) & 0x1f];
|
|
*d++ = FX_rgb_scale_5[(pixel >> 21) & 0x1f];
|
|
*d++ = FX_rgb_scale_5[(pixel >> 26) & 0x1f];
|
|
*d++ = (pixel & 0x80000000) ? 255 : 0;
|
|
}
|
|
if (extraPixel) {
|
|
const GLushort pixel = src[width - 1];
|
|
*d++ = FX_rgb_scale_5[ pixel & 0x1f];
|
|
*d++ = FX_rgb_scale_5[(pixel >> 5) & 0x1f];
|
|
*d++ = FX_rgb_scale_5[(pixel >> 10) & 0x1f];
|
|
*d++ = (pixel & 0x8000) ? 255 : 0;
|
|
}
|
|
dst += dstStride;
|
|
src -= srcStride;
|
|
}
|
|
}
|
|
else if (format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5) {
|
|
/* directly memcpy 5R5G5B pixels into client's buffer */
|
|
const GLint widthInBytes = width * 2;
|
|
GLint row;
|
|
for (row = 0; row < height; row++) {
|
|
MEMCPY(dst, src, widthInBytes);
|
|
dst += dstStride;
|
|
src -= srcStride;
|
|
}
|
|
}
|
|
else {
|
|
grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->currentFB);
|
|
END_BOARD_LOCK();
|
|
_swrast_ReadPixels(ctx, x, y, width, height, format, type,
|
|
packing, dstImage);
|
|
return;
|
|
}
|
|
|
|
grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->currentFB);
|
|
}
|
|
END_BOARD_LOCK();
|
|
}
|
|
}
|
|
|
|
static void fxDDReadPixels888 (GLcontext * ctx,
|
|
GLint x, GLint y,
|
|
GLsizei width, GLsizei height,
|
|
GLenum format, GLenum type,
|
|
const struct gl_pixelstore_attrib *packing,
|
|
GLvoid *dstImage)
|
|
{
|
|
if (ctx->_ImageTransferState) {
|
|
_swrast_ReadPixels(ctx, x, y, width, height, format, type,
|
|
packing, dstImage);
|
|
return;
|
|
}
|
|
else {
|
|
fxMesaContext fxMesa = FX_CONTEXT(ctx);
|
|
GrLfbInfo_t info;
|
|
|
|
BEGIN_BOARD_LOCK();
|
|
if (grLfbLock(GR_LFB_READ_ONLY,
|
|
fxMesa->currentFB,
|
|
GR_LFBWRITEMODE_ANY,
|
|
GR_ORIGIN_UPPER_LEFT, FXFALSE, &info)) {
|
|
const GLint winX = 0;
|
|
const GLint winY = fxMesa->height - 1;
|
|
const GLint srcStride = info.strideInBytes / 4; /* stride in GLuints */
|
|
const GLuint *src = (const GLuint *) info.lfbPtr
|
|
+ (winY - y) * srcStride + (winX + x);
|
|
GLubyte *dst = (GLubyte *) _mesa_image_address(packing, dstImage,
|
|
width, height, format,
|
|
type, 0, 0, 0);
|
|
GLint dstStride =
|
|
_mesa_image_row_stride(packing, width, format, type);
|
|
|
|
if (format == GL_RGB && type == GL_UNSIGNED_BYTE) {
|
|
/* convert 8A8R8G8B into 8R8G8B */
|
|
GLint row, col;
|
|
for (row = 0; row < height; row++) {
|
|
GLubyte *d = dst;
|
|
for (col = 0; col < width; col++) {
|
|
const GLuint pixel = ((const GLuint *) src)[col];
|
|
*d++ = pixel >> 16;
|
|
*d++ = pixel >> 8;
|
|
*d++ = pixel;
|
|
}
|
|
dst += dstStride;
|
|
src -= srcStride;
|
|
}
|
|
}
|
|
else if (format == GL_RGBA && type == GL_UNSIGNED_BYTE) {
|
|
/* directly memcpy 8A8R8G8B pixels into client's buffer */
|
|
const GLint widthInBytes = width * 4;
|
|
GLint row;
|
|
for (row = 0; row < height; row++) {
|
|
MEMCPY(dst, src, widthInBytes);
|
|
dst += dstStride;
|
|
src -= srcStride;
|
|
}
|
|
}
|
|
else if (format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5) {
|
|
/* convert 8A8R8G8B into 5R5G5B */
|
|
}
|
|
else {
|
|
grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->currentFB);
|
|
END_BOARD_LOCK();
|
|
_swrast_ReadPixels(ctx, x, y, width, height, format, type,
|
|
packing, dstImage);
|
|
return;
|
|
}
|
|
|
|
grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->currentFB);
|
|
}
|
|
END_BOARD_LOCK();
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
fxDDFinish(GLcontext * ctx)
|
|
{
|
|
grFlush();
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* KW: Put the word Mesa in the render string because quakeworld
|
|
* checks for this rather than doing a glGet(GL_MAX_TEXTURE_SIZE).
|
|
* Why?
|
|
*/
|
|
static const GLubyte *
|
|
fxDDGetString(GLcontext * ctx, GLenum name)
|
|
{
|
|
fxMesaContext fxMesa = FX_CONTEXT(ctx);
|
|
|
|
switch (name) {
|
|
case GL_RENDERER:
|
|
return (GLubyte *)fxMesa->rendererString;
|
|
default:
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static const struct gl_pipeline_stage *fx_pipeline[] = {
|
|
&_tnl_vertex_transform_stage, /* TODO: Add the fastpath here */
|
|
&_tnl_normal_transform_stage,
|
|
&_tnl_lighting_stage,
|
|
/*&_tnl_fog_coordinate_stage,*/ /* TODO: Omit fog stage ZZZ ZZZ ZZZ */
|
|
&_tnl_texgen_stage,
|
|
&_tnl_texture_transform_stage,
|
|
/*&_tnl_point_attenuation_stage,*/ /* TODO: For AA primitives ZZZ ZZZ ZZZ */
|
|
&_tnl_render_stage,
|
|
0,
|
|
};
|
|
|
|
|
|
|
|
|
|
int
|
|
fxDDInitFxMesaContext(fxMesaContext fxMesa)
|
|
{
|
|
int i;
|
|
GLcontext *ctx = fxMesa->glCtx;
|
|
|
|
FX_setupGrVertexLayout();
|
|
|
|
fxMesa->color = 0xffffffff;
|
|
fxMesa->clearC = 0;
|
|
fxMesa->clearA = 0;
|
|
|
|
fxMesa->stats.swapBuffer = 0;
|
|
fxMesa->stats.reqTexUpload = 0;
|
|
fxMesa->stats.texUpload = 0;
|
|
fxMesa->stats.memTexUpload = 0;
|
|
|
|
fxMesa->tmuSrc = FX_TMU_NONE;
|
|
fxMesa->lastUnitsMode = FX_UM_NONE;
|
|
fxTMInit(fxMesa);
|
|
|
|
/* FX units setup */
|
|
|
|
fxMesa->unitsState.alphaTestEnabled = GL_FALSE;
|
|
fxMesa->unitsState.alphaTestFunc = GL_ALWAYS;
|
|
fxMesa->unitsState.alphaTestRefValue = 0.0;
|
|
|
|
fxMesa->unitsState.blendEnabled = GL_FALSE;
|
|
fxMesa->unitsState.blendSrcFuncRGB = GR_BLEND_ONE;
|
|
fxMesa->unitsState.blendDstFuncRGB = GR_BLEND_ZERO;
|
|
fxMesa->unitsState.blendSrcFuncAlpha = GR_BLEND_ONE;
|
|
fxMesa->unitsState.blendDstFuncAlpha = GR_BLEND_ZERO;
|
|
|
|
fxMesa->unitsState.depthTestEnabled = GL_FALSE;
|
|
fxMesa->unitsState.depthMask = GL_TRUE;
|
|
fxMesa->unitsState.depthTestFunc = GL_LESS;
|
|
fxMesa->unitsState.depthBias = 0;
|
|
|
|
fxMesa->unitsState.stencilWriteMask = 0xff;
|
|
|
|
if (fxMesa->colDepth != 16) {
|
|
/* 32bpp mode or 15bpp mode */
|
|
fxMesa->Glide.grColorMaskExt(FXTRUE, FXTRUE, FXTRUE, fxMesa->haveHwAlpha);
|
|
} else {
|
|
/* 16 bpp mode */
|
|
grColorMask(FXTRUE, fxMesa->haveHwAlpha);
|
|
}
|
|
|
|
fxMesa->currentFB = fxMesa->haveDoubleBuffer ? GR_BUFFER_BACKBUFFER : GR_BUFFER_FRONTBUFFER;
|
|
grRenderBuffer(fxMesa->currentFB);
|
|
|
|
fxMesa->state = MALLOC(FX_grGetInteger(GR_GLIDE_STATE_SIZE));
|
|
fxMesa->fogTable = (GrFog_t *) MALLOC(FX_grGetInteger(GR_FOG_TABLE_ENTRIES) *
|
|
sizeof(GrFog_t));
|
|
|
|
if (!fxMesa->state || !fxMesa->fogTable) {
|
|
if (fxMesa->state)
|
|
FREE(fxMesa->state);
|
|
if (fxMesa->fogTable)
|
|
FREE(fxMesa->fogTable);
|
|
return 0;
|
|
}
|
|
|
|
if (fxMesa->haveZBuffer)
|
|
grDepthBufferMode(GR_DEPTHBUFFER_ZBUFFER);
|
|
|
|
grLfbWriteColorFormat(GR_COLORFORMAT_ABGR);
|
|
|
|
fxMesa->textureAlign = FX_grGetInteger(GR_TEXTURE_ALIGN);
|
|
/* [koolsmoky] */
|
|
{
|
|
int textureLevels = 0;
|
|
int textureSize = FX_grGetInteger(GR_MAX_TEXTURE_SIZE);
|
|
do {
|
|
textureLevels++;
|
|
} while ((textureSize >>= 0x1) & 0x7ff);
|
|
ctx->Const.MaxTextureLevels = textureLevels;
|
|
}
|
|
ctx->Const.MaxTextureCoordUnits = fxMesa->haveTwoTMUs ? 2 : 1;
|
|
ctx->Const.MaxTextureImageUnits = fxMesa->haveTwoTMUs ? 2 : 1;
|
|
ctx->Const.MaxTextureUnits = MAX2(ctx->Const.MaxTextureImageUnits, ctx->Const.MaxTextureCoordUnits);
|
|
|
|
fxMesa->new_state = _NEW_ALL;
|
|
if (!fxMesa->haveHwStencil) {
|
|
/* don't touch stencil if there is none */
|
|
fxMesa->new_state &= ~FX_NEW_STENCIL;
|
|
}
|
|
|
|
/* Initialize the software rasterizer and helper modules.
|
|
*/
|
|
_swrast_CreateContext(ctx);
|
|
_ac_CreateContext(ctx);
|
|
_tnl_CreateContext(ctx);
|
|
_swsetup_CreateContext(ctx);
|
|
|
|
/* Install customized pipeline */
|
|
_tnl_destroy_pipeline(ctx);
|
|
_tnl_install_pipeline(ctx, fx_pipeline);
|
|
|
|
fxAllocVB(ctx);
|
|
|
|
fxSetupDDPointers(ctx);
|
|
fxDDInitTriFuncs(ctx);
|
|
|
|
/* Tell the software rasterizer to use pixel fog always.
|
|
*/
|
|
_swrast_allow_vertex_fog(ctx, GL_FALSE);
|
|
_swrast_allow_pixel_fog(ctx, GL_TRUE);
|
|
|
|
/* Tell tnl not to calculate or use vertex fog factors. (Needed to
|
|
* tell render stage not to clip fog coords).
|
|
*/
|
|
/* _tnl_calculate_vertex_fog( ctx, GL_FALSE ); */
|
|
|
|
fxDDInitExtensions(ctx);
|
|
|
|
grGlideGetState((GrState *) fxMesa->state);
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* Undo the above.
|
|
*/
|
|
void
|
|
fxDDDestroyFxMesaContext(fxMesaContext fxMesa)
|
|
{
|
|
_swsetup_DestroyContext(fxMesa->glCtx);
|
|
_tnl_DestroyContext(fxMesa->glCtx);
|
|
_ac_DestroyContext(fxMesa->glCtx);
|
|
_swrast_DestroyContext(fxMesa->glCtx);
|
|
|
|
if (fxMesa->state)
|
|
FREE(fxMesa->state);
|
|
if (fxMesa->fogTable)
|
|
FREE(fxMesa->fogTable);
|
|
fxTMClose(fxMesa);
|
|
fxFreeVB(fxMesa->glCtx);
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
fxDDInitExtensions(GLcontext * ctx)
|
|
{
|
|
fxMesaContext fxMesa = FX_CONTEXT(ctx);
|
|
|
|
/*_mesa_add_extension(ctx, GL_TRUE, "3DFX_set_global_palette", 0);*/
|
|
_mesa_enable_extension(ctx, "GL_EXT_point_parameters");
|
|
_mesa_enable_extension(ctx, "GL_EXT_paletted_texture");
|
|
_mesa_enable_extension(ctx, "GL_EXT_texture_lod_bias");
|
|
_mesa_enable_extension(ctx, "GL_EXT_shared_texture_palette");
|
|
|
|
if (fxMesa->haveTwoTMUs) {
|
|
_mesa_enable_extension(ctx, "GL_EXT_texture_env_add");
|
|
_mesa_enable_extension(ctx, "GL_ARB_multitexture");
|
|
}
|
|
|
|
if (fxMesa->haveHwStencil) {
|
|
_mesa_enable_extension( ctx, "GL_EXT_stencil_wrap" );
|
|
}
|
|
|
|
#if 0 /* not ready yet */
|
|
/* banshee/avenger should enable this for NCC */
|
|
_mesa_enable_extension( ctx, "GL_ARB_texture_compression" );
|
|
#endif
|
|
if (0/*IS_NAPALM*/) {
|
|
/* tex_compress: not ready yet */
|
|
_mesa_enable_extension( ctx, "GL_3DFX_texture_compression_FXT1" );
|
|
_mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
|
|
/*_mesa_enable_extension( ctx, "GL_S3_s3tc" );*/
|
|
|
|
/* env_combine: not ready yet */
|
|
/*_mesa_enable_extension( ctx, "GL_EXT_texture_env_combine" );*/
|
|
}
|
|
|
|
if (fxMesa->HaveMirExt) {
|
|
_mesa_enable_extension(ctx, "GL_ARB_texture_mirrored_repeat");
|
|
}
|
|
}
|
|
|
|
|
|
/************************************************************************/
|
|
/************************************************************************/
|
|
/************************************************************************/
|
|
|
|
/* Check if the hardware supports the current context
|
|
*
|
|
* Performs similar work to fxDDChooseRenderState() - should be merged.
|
|
*/
|
|
GLuint
|
|
fx_check_IsInHardware(GLcontext * ctx)
|
|
{
|
|
fxMesaContext fxMesa = FX_CONTEXT(ctx);
|
|
|
|
if (ctx->RenderMode != GL_RENDER) {
|
|
return FX_FALLBACK_RENDER_MODE;
|
|
}
|
|
|
|
if (ctx->Stencil.Enabled && !fxMesa->haveHwStencil) {
|
|
return FX_FALLBACK_STENCIL;
|
|
}
|
|
|
|
if (ctx->Color._DrawDestMask != FRONT_LEFT_BIT && ctx->Color._DrawDestMask != BACK_LEFT_BIT) {
|
|
return FX_FALLBACK_DRAW_BUFFER;
|
|
}
|
|
|
|
if (ctx->Color.BlendEnabled && (ctx->Color.BlendEquation != GL_FUNC_ADD_EXT)) {
|
|
return FX_FALLBACK_BLEND;
|
|
}
|
|
|
|
if (ctx->Color.ColorLogicOpEnabled && (ctx->Color.LogicOp != GL_COPY)) {
|
|
return FX_FALLBACK_LOGICOP;
|
|
}
|
|
|
|
if (ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR) {
|
|
return FX_FALLBACK_SPECULAR;
|
|
}
|
|
|
|
if ((ctx->Color.ColorMask[RCOMP] != ctx->Color.ColorMask[GCOMP])
|
|
||
|
|
(ctx->Color.ColorMask[GCOMP] != ctx->Color.ColorMask[BCOMP])
|
|
||
|
|
(ctx->Color.ColorMask[BCOMP] != ctx->Color.ColorMask[ACOMP])
|
|
) {
|
|
return FX_FALLBACK_COLORMASK;
|
|
}
|
|
|
|
/* Unsupported texture/multitexture cases */
|
|
|
|
if (fxMesa->haveTwoTMUs) {
|
|
/* we can only do 2D textures */
|
|
if (ctx->Texture.Unit[0]._ReallyEnabled & ~TEXTURE_2D_BIT)
|
|
return FX_FALLBACK_TEXTURE_1D_3D;
|
|
if (ctx->Texture.Unit[1]._ReallyEnabled & ~TEXTURE_2D_BIT)
|
|
return FX_FALLBACK_TEXTURE_1D_3D;
|
|
|
|
if (ctx->Texture.Unit[0]._ReallyEnabled & TEXTURE_2D_BIT) {
|
|
#if 0
|
|
if (ctx->Texture.Unit[0].EnvMode == GL_BLEND &&
|
|
(ctx->Texture.Unit[1]._ReallyEnabled & TEXTURE_2D_BIT ||
|
|
ctx->Texture.Unit[0].EnvColor[0] != 0 ||
|
|
ctx->Texture.Unit[0].EnvColor[1] != 0 ||
|
|
ctx->Texture.Unit[0].EnvColor[2] != 0 ||
|
|
ctx->Texture.Unit[0].EnvColor[3] != 1)) {
|
|
return FX_FALLBACK_TEXTURE_ENV;
|
|
}
|
|
#endif
|
|
if (ctx->Texture.Unit[0]._Current->Image[0]->Border > 0)
|
|
return FX_FALLBACK_TEXTURE_BORDER;
|
|
}
|
|
|
|
if (ctx->Texture.Unit[1]._ReallyEnabled & TEXTURE_2D_BIT) {
|
|
#if 0
|
|
if (ctx->Texture.Unit[1].EnvMode == GL_BLEND)
|
|
return FX_FALLBACK_TEXTURE_ENV;
|
|
#endif
|
|
if (ctx->Texture.Unit[1]._Current->Image[0]->Border > 0)
|
|
return FX_FALLBACK_TEXTURE_BORDER;
|
|
}
|
|
|
|
if (TDFX_DEBUG & (VERBOSE_DRIVER | VERBOSE_TEXTURE))
|
|
fprintf(stderr, "%s: envmode is %s/%s\n", __FUNCTION__,
|
|
_mesa_lookup_enum_by_nr(ctx->Texture.Unit[0].EnvMode),
|
|
_mesa_lookup_enum_by_nr(ctx->Texture.Unit[1].EnvMode));
|
|
|
|
/* KW: This was wrong (I think) and I changed it... which doesn't mean
|
|
* it is now correct...
|
|
* BP: The old condition just seemed to test if both texture units
|
|
* were enabled. That's easy!
|
|
*/
|
|
if (ctx->Texture._EnabledUnits == 0x3) {
|
|
/* Can't use multipass to blend a multitextured triangle - fall
|
|
* back to software.
|
|
*/
|
|
if (!fxMesa->haveTwoTMUs && ctx->Color.BlendEnabled) {
|
|
return FX_FALLBACK_TEXTURE_MULTI;
|
|
}
|
|
|
|
if ((ctx->Texture.Unit[0].EnvMode != ctx->Texture.Unit[1].EnvMode) &&
|
|
(ctx->Texture.Unit[0].EnvMode != GL_MODULATE) &&
|
|
(ctx->Texture.Unit[0].EnvMode != GL_REPLACE)) { /* q2, seems ok... */
|
|
if (TDFX_DEBUG & VERBOSE_DRIVER)
|
|
fprintf(stderr, "%s: unsupported multitex env mode\n", __FUNCTION__);
|
|
return FX_FALLBACK_TEXTURE_MULTI;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
/* we have just one texture unit */
|
|
if (ctx->Texture._EnabledUnits > 0x1) {
|
|
return FX_FALLBACK_TEXTURE_MULTI;
|
|
}
|
|
|
|
#if 0
|
|
if ((ctx->Texture.Unit[0]._ReallyEnabled & TEXTURE_2D_BIT) &&
|
|
(ctx->Texture.Unit[0].EnvMode == GL_BLEND)) {
|
|
return FX_FALLBACK_TEXTURE_ENV;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
fxDDUpdateDDPointers(GLcontext * ctx, GLuint new_state)
|
|
{
|
|
/* TNLcontext *tnl = TNL_CONTEXT(ctx);*/
|
|
fxMesaContext fxMesa = FX_CONTEXT(ctx);
|
|
|
|
if (TDFX_DEBUG & VERBOSE_DRIVER) {
|
|
fprintf(stderr, "fxDDUpdateDDPointers(%08x)\n", new_state);
|
|
}
|
|
|
|
_swrast_InvalidateState(ctx, new_state);
|
|
_ac_InvalidateState(ctx, new_state);
|
|
_tnl_InvalidateState(ctx, new_state);
|
|
_swsetup_InvalidateState(ctx, new_state);
|
|
|
|
fxMesa->new_gl_state |= new_state;
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
fxSetupDDPointers(GLcontext * ctx)
|
|
{
|
|
fxMesaContext fxMesa = FX_CONTEXT(ctx);
|
|
TNLcontext *tnl = TNL_CONTEXT(ctx);
|
|
|
|
if (TDFX_DEBUG & VERBOSE_DRIVER) {
|
|
fprintf(stderr, "%s()\n", __FUNCTION__);
|
|
}
|
|
|
|
ctx->Driver.UpdateState = fxDDUpdateDDPointers;
|
|
ctx->Driver.GetString = fxDDGetString;
|
|
ctx->Driver.ClearIndex = NULL;
|
|
ctx->Driver.ClearColor = fxDDClearColor;
|
|
ctx->Driver.Clear = fxDDClear;
|
|
ctx->Driver.DrawBuffer = fxDDSetDrawBuffer;
|
|
ctx->Driver.GetBufferSize = fxDDBufferSize;
|
|
ctx->Driver.Accum = _swrast_Accum;
|
|
ctx->Driver.Bitmap = fxDDDrawBitmap;
|
|
ctx->Driver.CopyPixels = _swrast_CopyPixels;
|
|
ctx->Driver.DrawPixels = _swrast_DrawPixels;
|
|
switch (fxMesa->colDepth) {
|
|
case 15:
|
|
ctx->Driver.ReadPixels = fxDDReadPixels555;
|
|
break;
|
|
case 16:
|
|
ctx->Driver.ReadPixels = fxDDReadPixels;
|
|
break;
|
|
case 32:
|
|
ctx->Driver.ReadPixels = fxDDReadPixels888;
|
|
break;
|
|
}
|
|
ctx->Driver.ResizeBuffers = _swrast_alloc_buffers;
|
|
ctx->Driver.Finish = fxDDFinish;
|
|
ctx->Driver.Flush = NULL;
|
|
ctx->Driver.ChooseTextureFormat = fxDDChooseTextureFormat;
|
|
ctx->Driver.TexImage1D = _mesa_store_teximage1d;
|
|
ctx->Driver.TexImage2D = fxDDTexImage2D;
|
|
ctx->Driver.TexImage3D = _mesa_store_teximage3d;
|
|
ctx->Driver.TexSubImage1D = _mesa_store_texsubimage1d;
|
|
ctx->Driver.TexSubImage2D = fxDDTexSubImage2D;
|
|
ctx->Driver.TexSubImage3D = _mesa_store_texsubimage3d;
|
|
ctx->Driver.CompressedTexImage1D = _mesa_store_compressed_teximage1d;
|
|
ctx->Driver.CompressedTexImage2D = _mesa_store_compressed_teximage2d;
|
|
ctx->Driver.CompressedTexImage3D = _mesa_store_compressed_teximage3d;
|
|
ctx->Driver.CompressedTexSubImage1D = _mesa_store_compressed_texsubimage1d;
|
|
ctx->Driver.CompressedTexSubImage2D = _mesa_store_compressed_texsubimage2d;
|
|
ctx->Driver.CompressedTexSubImage3D = _mesa_store_compressed_texsubimage3d;
|
|
ctx->Driver.CopyTexImage1D = _swrast_copy_teximage1d;
|
|
ctx->Driver.CopyTexImage2D = _swrast_copy_teximage2d;
|
|
ctx->Driver.CopyTexSubImage1D = _swrast_copy_texsubimage1d;
|
|
ctx->Driver.CopyTexSubImage2D = _swrast_copy_texsubimage2d;
|
|
ctx->Driver.CopyTexSubImage3D = _swrast_copy_texsubimage3d;
|
|
ctx->Driver.TestProxyTexImage = _mesa_test_proxy_teximage;
|
|
ctx->Driver.CopyColorTable = _swrast_CopyColorTable;
|
|
ctx->Driver.CopyColorSubTable = _swrast_CopyColorSubTable;
|
|
ctx->Driver.CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D;
|
|
ctx->Driver.CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D;
|
|
ctx->Driver.TexEnv = fxDDTexEnv;
|
|
ctx->Driver.TexParameter = fxDDTexParam;
|
|
ctx->Driver.BindTexture = fxDDTexBind;
|
|
ctx->Driver.DeleteTexture = fxDDTexDel;
|
|
ctx->Driver.UpdateTexturePalette = fxDDTexPalette;
|
|
ctx->Driver.AlphaFunc = fxDDAlphaFunc;
|
|
ctx->Driver.BlendFunc = fxDDBlendFunc;
|
|
ctx->Driver.DepthFunc = fxDDDepthFunc;
|
|
ctx->Driver.DepthMask = fxDDDepthMask;
|
|
ctx->Driver.ColorMask = fxDDColorMask;
|
|
ctx->Driver.Fogfv = fxDDFogfv;
|
|
ctx->Driver.Scissor = fxDDScissor;
|
|
ctx->Driver.FrontFace = fxDDFrontFace;
|
|
ctx->Driver.CullFace = fxDDCullFace;
|
|
ctx->Driver.ShadeModel = fxDDShadeModel;
|
|
ctx->Driver.Enable = fxDDEnable;
|
|
if (fxMesa->haveHwStencil) {
|
|
ctx->Driver.StencilFunc = fxDDStencilFunc;
|
|
ctx->Driver.StencilMask = fxDDStencilMask;
|
|
ctx->Driver.StencilOp = fxDDStencilOp;
|
|
}
|
|
|
|
fxSetupDDSpanPointers(ctx);
|
|
fxDDUpdateDDPointers(ctx, ~0);
|
|
}
|
|
|
|
|
|
#else
|
|
|
|
|
|
/*
|
|
* Need this to provide at least one external definition.
|
|
*/
|
|
|
|
extern int gl_fx_dummy_function_dd(void);
|
|
int
|
|
gl_fx_dummy_function_dd(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif /* FX */
|