-/* -*- mode: C; tab-width:8; -*-
-
- fxdd.c - 3Dfx VooDoo Mesa device driver functions
-*/
+/* $Id: fxdd.c,v 1.95 2003/01/08 21:32:36 brianp Exp $ */
/*
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * Mesa 3-D graphics library
+ * Version: 4.0
*
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
+ * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
*
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 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:
*
- * See the file fxapi.c for more informations about authors
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
*
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/* Authors:
+ * David Bucciarelli
+ * Brian Paul
+ * Daryll Strauss
+ * Keith Whitwell
*/
+/* fxdd.c - 3Dfx VooDoo Mesa device driver functions */
+
#ifdef HAVE_CONFIG_H
#include "conf.h"
#if defined(FX)
+#include "image.h"
+#include "mtypes.h"
#include "fxdrv.h"
#include "enums.h"
+#include "extensions.h"
+#include "mmath.h"
+#include "texstore.h"
+#include "swrast/swrast.h"
+#include "swrast_setup/swrast_setup.h"
+#include "tnl/tnl.h"
+#include "tnl/t_context.h"
+#include "tnl/t_pipeline.h"
+#include "array_cache/acache.h"
+
+
+
+float gl_ubyte_to_float_255_color_tab[256];
+
+/* These lookup table are used to extract RGB values in [0,255] from
+ * 16-bit pixel values.
+ */
+GLubyte FX_PixelToR[0x10000];
+GLubyte FX_PixelToG[0x10000];
+GLubyte FX_PixelToB[0x10000];
-/**********************************************************************/
-/***** Miscellaneous functions *****/
-/**********************************************************************/
-/* Enalbe/Disable dithering */
-void fxDDDither(GLcontext *ctx, GLboolean enable)
+/*
+ * Initialize the FX_PixelTo{RGB} arrays.
+ * Input: bgrOrder - if TRUE, pixels are in BGR order, else RGB order.
+ */
+void
+fxInitPixelTables(fxMesaContext fxMesa, GLboolean bgrOrder)
{
- if (MESA_VERBOSE&VERBOSE_DRIVER) {
- fprintf(stderr,"fxmesa: fxDDDither()\n");
- }
-
- if(enable)
- grDitherMode(GR_DITHER_4x4);
- else
- grDitherMode(GR_DITHER_DISABLE);
+ GLuint pixel;
+
+ fxMesa->bgrOrder = bgrOrder;
+ for (pixel = 0; pixel <= 0xffff; pixel++) {
+ GLuint r, g, b;
+ if (bgrOrder) {
+ r = (pixel & 0x001F) << 3;
+ g = (pixel & 0x07E0) >> 3;
+ b = (pixel & 0xF800) >> 8;
+ }
+ else {
+ r = (pixel & 0xF800) >> 8;
+ g = (pixel & 0x07E0) >> 3;
+ b = (pixel & 0x001F) << 3;
+ }
+ r = r * 255 / 0xF8; /* fill in low-order bits */
+ g = g * 255 / 0xFC;
+ b = b * 255 / 0xF8;
+ FX_PixelToR[pixel] = r;
+ FX_PixelToG[pixel] = g;
+ FX_PixelToB[pixel] = b;
+ }
}
+/**********************************************************************/
+/***** Miscellaneous functions *****/
+/**********************************************************************/
+
/* Return buffer size information */
-void fxDDBufferSize(GLcontext *ctx, GLuint *width, GLuint *height)
+static void
+fxDDBufferSize(GLframebuffer *buffer, GLuint * width, GLuint * height)
{
- fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
-
- if (MESA_VERBOSE&VERBOSE_DRIVER) {
- fprintf(stderr,"fxmesa: fxDDBufferSize(...) Start\n");
- }
+ GET_CURRENT_CONTEXT(ctx);
+ if (ctx && ctx->DriverCtx) {
+ fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
- *width=fxMesa->width;
- *height=fxMesa->height;
-
- if (MESA_VERBOSE&VERBOSE_DRIVER) {
- fprintf(stderr,"fxmesa: fxDDBufferSize(...) End\n");
- }
-}
+ if (MESA_VERBOSE & VERBOSE_DRIVER) {
+ fprintf(stderr, "fxmesa: fxDDBufferSize(...) Start\n");
+ }
+ *width = fxMesa->width;
+ *height = fxMesa->height;
-/* Set current drawing color */
-static void fxDDSetColor(GLcontext *ctx, GLubyte red, GLubyte green,
- GLubyte blue, GLubyte alpha )
-{
- fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
- GLubyte col[4];
- ASSIGN_4V( col, red, green, blue, alpha );
-
- if (MESA_VERBOSE&VERBOSE_DRIVER) {
- fprintf(stderr,"fxmesa: fxDDSetColor(%d,%d,%d,%d)\n",red,green,blue,alpha);
- }
-
- fxMesa->color=FXCOLOR4(col);
+ if (MESA_VERBOSE & VERBOSE_DRIVER) {
+ fprintf(stderr, "fxmesa: fxDDBufferSize(...) End\n");
+ }
+ }
}
/* Implements glClearColor() */
-static void fxDDClearColor(GLcontext *ctx, GLubyte red, GLubyte green,
- GLubyte blue, GLubyte alpha )
+static void
+fxDDClearColor(GLcontext * ctx, const GLfloat color[4])
{
- fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
- GLubyte col[4];
-
+ fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
+ GLubyte col[4];
+ if (MESA_VERBOSE & VERBOSE_DRIVER) {
+ fprintf(stderr, "fxmesa: fxDDClearColor(%f,%f,%f,%f)\n",
+ color[0], color[1], color[2], color[3]);
+ }
- ASSIGN_4V( col, red, green, blue, 255 );
+ CLAMPED_FLOAT_TO_UBYTE(col[0], color[0]);
+ CLAMPED_FLOAT_TO_UBYTE(col[1], color[1]);
+ CLAMPED_FLOAT_TO_UBYTE(col[2], color[2]);
+ CLAMPED_FLOAT_TO_UBYTE(col[3], color[3]);
- if (MESA_VERBOSE&VERBOSE_DRIVER) {
- fprintf(stderr,"fxmesa: fxDDClearColor(%d,%d,%d,%d)\n",red,green,blue,alpha);
- }
-
- fxMesa->clearC=FXCOLOR4( col );
- fxMesa->clearA=alpha;
+ fxMesa->clearC = FXCOLOR4(col);
+ fxMesa->clearA = col[3];
}
+
/* Clear the color and/or depth buffers */
-static GLbitfield fxDDClear(GLcontext *ctx, GLbitfield mask, GLboolean all,
- GLint x, GLint y, GLint width, GLint height )
+static void
+fxDDClear(GLcontext * ctx, GLbitfield mask, GLboolean all,
+ GLint x, GLint y, GLint width, GLint height)
{
- fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
- GLbitfield newmask;
-
- if (MESA_VERBOSE&VERBOSE_DRIVER) {
- fprintf(stderr,"fxmesa: fxDDClear(%d,%d,%d,%d)\n",x,y,width,height);
- }
-
- switch(mask & (GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT)) {
- case (GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT):
- /* clear color and depth buffer */
-
- if (ctx->Color.DrawDestMask & BACK_LEFT_BIT) {
- grRenderBuffer(GR_BUFFER_BACKBUFFER);
- grBufferClear(fxMesa->clearC, fxMesa->clearA,
- (FxU16)(ctx->Depth.Clear*0xffff));
- }
- if (ctx->Color.DrawDestMask & FRONT_LEFT_BIT) {
- grRenderBuffer(GR_BUFFER_FRONTBUFFER);
- grBufferClear(fxMesa->clearC, fxMesa->clearA,
- (FxU16)(ctx->Depth.Clear*0xffff));
- }
-
- newmask=mask & (~(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT));
- break;
- case (GL_COLOR_BUFFER_BIT):
- /* clear color buffer */
-
- if(ctx->Color.ColorMask) {
- grDepthMask(FXFALSE);
-
- if (ctx->Color.DrawDestMask & BACK_LEFT_BIT) {
- grRenderBuffer(GR_BUFFER_BACKBUFFER);
- grBufferClear(fxMesa->clearC, fxMesa->clearA, 0);
+ fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
+ const GLuint colorMask = *((GLuint *) & ctx->Color.ColorMask);
+ const FxU16 clearD = (FxU16) (ctx->Depth.Clear * 0xffff);
+ GLbitfield softwareMask = mask & (DD_STENCIL_BIT | DD_ACCUM_BIT);
+
+ /* we can't clear stencil or accum buffers */
+ mask &= ~(DD_STENCIL_BIT | DD_ACCUM_BIT);
+
+ if (MESA_VERBOSE & VERBOSE_DRIVER) {
+ fprintf(stderr, "fxmesa: fxDDClear(%d,%d,%d,%d)\n", (int) x, (int) y,
+ (int) width, (int) height);
+ }
+
+ if (colorMask != 0xffffffff) {
+ /* do masked color buffer clears in software */
+ softwareMask |= (mask & (DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT));
+ mask &= ~(DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT);
+ }
+
+ /*
+ * This could probably be done fancier but doing each possible case
+ * explicitly is less error prone.
+ */
+ switch (mask) {
+ case DD_BACK_LEFT_BIT | DD_DEPTH_BIT:
+ /* back buffer & depth */
+ FX_grDepthMask(FXTRUE);
+ FX_grRenderBuffer(GR_BUFFER_BACKBUFFER);
+ FX_grBufferClear(fxMesa->clearC, fxMesa->clearA, clearD);
+ if (!ctx->Depth.Mask) {
+ FX_grDepthMask(FXFALSE);
+ }
+ break;
+ case DD_FRONT_LEFT_BIT | DD_DEPTH_BIT:
+ /* XXX it appears that the depth buffer isn't cleared when
+ * glRenderBuffer(GR_BUFFER_FRONTBUFFER) is set.
+ * This is a work-around/
+ */
+ /* clear depth */
+ FX_grDepthMask(FXTRUE);
+ FX_grRenderBuffer(GR_BUFFER_BACKBUFFER);
+ FX_grColorMask(FXFALSE, FXFALSE);
+ FX_grBufferClear(fxMesa->clearC, fxMesa->clearA, clearD);
+ /* clear front */
+ FX_grColorMask(FXTRUE, ctx->Color.ColorMask[ACOMP]
+ && fxMesa->haveAlphaBuffer);
+ FX_grRenderBuffer(GR_BUFFER_FRONTBUFFER);
+ FX_grBufferClear(fxMesa->clearC, fxMesa->clearA, clearD);
+ break;
+ case DD_BACK_LEFT_BIT:
+ /* back buffer only */
+ FX_grDepthMask(FXFALSE);
+ FX_grRenderBuffer(GR_BUFFER_BACKBUFFER);
+ FX_grBufferClear(fxMesa->clearC, fxMesa->clearA, clearD);
+ if (ctx->Depth.Mask) {
+ FX_grDepthMask(FXTRUE);
}
- if (ctx->Color.DrawDestMask & FRONT_LEFT_BIT) {
- grRenderBuffer(GR_BUFFER_FRONTBUFFER);
- grBufferClear(fxMesa->clearC, fxMesa->clearA, 0);
+ break;
+ case DD_FRONT_LEFT_BIT:
+ /* front buffer only */
+ FX_grDepthMask(FXFALSE);
+ FX_grRenderBuffer(GR_BUFFER_FRONTBUFFER);
+ FX_grBufferClear(fxMesa->clearC, fxMesa->clearA, clearD);
+ if (ctx->Depth.Mask) {
+ FX_grDepthMask(FXTRUE);
}
+ break;
+ case DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT:
+ /* front and back */
+ FX_grDepthMask(FXFALSE);
+ FX_grRenderBuffer(GR_BUFFER_BACKBUFFER);
+ FX_grBufferClear(fxMesa->clearC, fxMesa->clearA, clearD);
+ FX_grRenderBuffer(GR_BUFFER_FRONTBUFFER);
+ FX_grBufferClear(fxMesa->clearC, fxMesa->clearA, clearD);
+ if (ctx->Depth.Mask) {
+ FX_grDepthMask(FXTRUE);
+ }
+ break;
+ case DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT | DD_DEPTH_BIT:
+ /* clear front */
+ FX_grDepthMask(FXFALSE);
+ FX_grRenderBuffer(GR_BUFFER_FRONTBUFFER);
+ FX_grBufferClear(fxMesa->clearC, fxMesa->clearA, clearD);
+ /* clear back and depth */
+ FX_grDepthMask(FXTRUE);
+ FX_grRenderBuffer(GR_BUFFER_BACKBUFFER);
+ FX_grBufferClear(fxMesa->clearC, fxMesa->clearA, clearD);
+ if (!ctx->Depth.Mask) {
+ FX_grDepthMask(FXFALSE);
+ }
+ break;
+ case DD_DEPTH_BIT:
+ /* just the depth buffer */
+ FX_grRenderBuffer(GR_BUFFER_BACKBUFFER);
+ FX_grColorMask(FXFALSE, FXFALSE);
+ FX_grDepthMask(FXTRUE);
+ FX_grBufferClear(fxMesa->clearC, fxMesa->clearA, clearD);
+ FX_grColorMask(FXTRUE, ctx->Color.ColorMask[ACOMP]
+ && fxMesa->haveAlphaBuffer);
+ if (ctx->Color._DrawDestMask & FRONT_LEFT_BIT)
+ FX_grRenderBuffer(GR_BUFFER_FRONTBUFFER);
+ if (!ctx->Depth.Test || !ctx->Depth.Mask)
+ FX_grDepthMask(FXFALSE);
+ break;
+ default:
+ /* error */
+ ;
+ }
- if(ctx->Depth.Mask)
- grDepthMask(FXTRUE);
- }
-
- newmask=mask & (~(GL_COLOR_BUFFER_BIT));
- break;
- case (GL_DEPTH_BUFFER_BIT):
- /* clear depth buffer */
-
- if(ctx->Depth.Mask) {
- grColorMask(FXFALSE,FXFALSE);
- grBufferClear(fxMesa->clearC, fxMesa->clearA,
- (FxU16)(ctx->Depth.Clear*0xffff));
-
- grColorMask(ctx->Color.ColorMask[RCOMP] ||
- ctx->Color.ColorMask[GCOMP] ||
- ctx->Color.ColorMask[BCOMP],
- ctx->Color.ColorMask[ACOMP] && fxMesa->haveAlphaBuffer);
- }
-
- newmask=mask & (~(GL_DEPTH_BUFFER_BIT));
- break;
- default:
- newmask=mask;
- break;
- }
-
- return newmask;
+ /* Clear any remaining buffers:
+ */
+ if (softwareMask)
+ _swrast_Clear(ctx, softwareMask, all, x, y, width, height);
}
-/* Set the buffer used in double buffering */
-static GLboolean fxDDSetBuffer(GLcontext *ctx, GLenum mode )
+/* Set the buffer used for drawing */
+/* XXX support for separate read/draw buffers hasn't been tested */
+static void
+fxDDSetDrawBuffer(GLcontext * ctx, GLenum mode)
{
- fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
-
- if (MESA_VERBOSE&VERBOSE_DRIVER) {
- fprintf(stderr,"fxmesa: fxDDSetBuffer(%x)\n",mode);
- }
-
- if (mode == GL_FRONT_LEFT) {
- fxMesa->currentFB = GR_BUFFER_FRONTBUFFER;
- grRenderBuffer(fxMesa->currentFB);
- return GL_TRUE;
- }
- else if (mode == GL_BACK_LEFT) {
- fxMesa->currentFB = GR_BUFFER_BACKBUFFER;
- grRenderBuffer(fxMesa->currentFB);
- return GL_TRUE;
- }
- else {
- return GL_FALSE;
- }
-}
-
+ fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
-static GLboolean fxDDDrawBitMap(GLcontext *ctx, GLint px, GLint py,
- GLsizei width, GLsizei height,
- const struct gl_pixelstore_attrib *unpack,
- const GLubyte *bitmap)
-{
- fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
- FxU16 *p;
- GrLfbInfo_t info;
- const GLubyte *pb;
- int x,y;
- GLint r,g,b,a,scrwidth,scrheight,stride;
- FxU16 color;
-
- /* TODO: with a little work, these bitmap unpacking parameter restrictions
- * could be removed.
- */
- if((unpack->Alignment!=1) ||
- (unpack->RowLength!=0) ||
- (unpack->SkipPixels!=0) ||
- (unpack->SkipRows!=0) ||
- (unpack->SwapBytes) ||
- (unpack->LsbFirst))
- return GL_FALSE;
-
-#define ISCLIPPED(rx) ( ((rx)<0) || ((rx)>=scrwidth) )
-#define DRAWBIT(i) { \
- if(!ISCLIPPED(x+px)) \
- if( (*pb) & (1<<(i)) ) \
- (*p)=color; \
- p++; \
- x++; \
- if(x>=width) { \
- pb++; \
- break; \
- } \
-}
+ if (MESA_VERBOSE & VERBOSE_DRIVER) {
+ fprintf(stderr, "fxmesa: fxDDSetBuffer(%x)\n", (int) mode);
+ }
- scrwidth=fxMesa->width;
- scrheight=fxMesa->height;
+ if (mode == GL_FRONT_LEFT) {
+ fxMesa->currentFB = GR_BUFFER_FRONTBUFFER;
+ FX_grRenderBuffer(fxMesa->currentFB);
+ }
+ else if (mode == GL_BACK_LEFT) {
+ fxMesa->currentFB = GR_BUFFER_BACKBUFFER;
+ FX_grRenderBuffer(fxMesa->currentFB);
+ }
+ else if (mode == GL_NONE) {
+ FX_grColorMask(FXFALSE, FXFALSE);
+ }
+ else {
+ /* we'll need a software fallback */
+ /* XXX not implemented */
+ }
- if((px>=scrwidth) || (px+width<=0) || (py>=scrheight) || (py+height<=0))
- return GL_TRUE;
+ /* update s/w fallback state */
+ _swrast_DrawBuffer(ctx, mode);
+}
- pb=bitmap;
- if(py<0) {
- pb+=(height*(-py)) >> (3+1);
- height+=py;
- py=0;
- }
- if(py+height>=scrheight)
- height-=(py+height)-scrheight;
- info.size=sizeof(info);
- if(!grLfbLock(GR_LFB_WRITE_ONLY,
- fxMesa->currentFB,
- GR_LFBWRITEMODE_565,
- GR_ORIGIN_UPPER_LEFT,
- FXFALSE,
- &info)) {
-#ifndef FX_SILENT
- fprintf(stderr,"fx Driver: error locking the linear frame buffer\n");
-#endif
- return GL_TRUE;
- }
- r=(GLint)(ctx->Current.RasterColor[0]*255.0f);
- g=(GLint)(ctx->Current.RasterColor[1]*255.0f);
- b=(GLint)(ctx->Current.RasterColor[2]*255.0f);
- a=(GLint)(ctx->Current.RasterColor[3]*255.0f);
- color=(FxU16)
- ( ((FxU16)0xf8 & b) <<(11-3)) |
- ( ((FxU16)0xfc & g) <<(5-3+1)) |
- ( ((FxU16)0xf8 & r) >> 3);
+static void
+fxDDDrawBitmap(GLcontext * ctx, GLint px, GLint py,
+ GLsizei width, GLsizei height,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLubyte * bitmap)
+{
+ fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
+ 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;
+ }
- stride=info.strideInBytes>>1;
- /* This code is a bit slow... */
+ 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));
+ }
- for(y=0;y<height;y++) {
- p=((FxU16 *)info.lfbPtr)+px+((scrheight-(y+py))*stride);
+ if (width <= 0 || height <= 0)
+ return;
+ }
+ else {
+ finalUnpack = unpack;
+ }
- for(x=0;;) {
- DRAWBIT(7); DRAWBIT(6); DRAWBIT(5); DRAWBIT(4);
- DRAWBIT(3); DRAWBIT(2); DRAWBIT(1); DRAWBIT(0);
- pb++;
- }
- }
+ /* 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);
+ }
- grLfbUnlock(GR_LFB_WRITE_ONLY,fxMesa->currentFB);
+ info.size = sizeof(info);
+ if (!FX_grLfbLock(GR_LFB_WRITE_ONLY,
+ fxMesa->currentFB,
+ GR_LFBWRITEMODE_565,
+ GR_ORIGIN_UPPER_LEFT, FXFALSE, &info)) {
+#ifndef FX_SILENT
+ fprintf(stderr, "fx Driver: error locking the linear frame buffer\n");
+#endif
+ return;
+ }
-#undef ISCLIPPED
-#undef DRAWBIT
+ {
+ 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;
+ }
+ }
- return GL_TRUE;
+ FX_grLfbUnlock(GR_LFB_WRITE_ONLY, fxMesa->currentFB);
}
-static void fxDDFinish(GLcontext *ctx)
+
+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)
{
- FX_grFlush();
+ if (ctx->_ImageTransferState) {
+ _swrast_ReadPixels(ctx, x, y, width, height, format, type,
+ packing, dstImage);
+ return;
+ }
+ else {
+ fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
+ 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 GLint fxDDGetParameteri(const GLcontext *ctx, GLint param)
+
+static void
+fxDDFinish(GLcontext * ctx)
{
- switch(param) {
- case DD_HAVE_HARDWARE_FOG:
- return 1;
- default:
- fprintf(stderr,"fx Driver: internal error in fxDDGetParameteri(): %x\n",param);
- fxCloseHardware();
- exit(-1);
- }
+ FX_grFlush();
}
-void fxDDSetNearFar(GLcontext *ctx, GLfloat n, GLfloat f)
-{
- FX_CONTEXT(ctx)->new_state |= FX_NEW_FOG;
- ctx->Driver.RenderStart = fxSetupFXUnits;
-}
+
+
/* 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)
+static const GLubyte *
+fxDDGetString(GLcontext * ctx, GLenum name)
{
- static char *extensions="GL_EXT_blend_color GL_EXT_blend_minmax GL_EXT_blend_logic_op GL_EXT_blend_subtract GL_EXT_paletted_texture GL_EXT_point_parameters GL_EXT_polygon_offset GL_EXT_vertex_array GL_EXT_texture_object GL_EXT_texture3D GL_MESA_window_pos GL_MESA_resize_buffers GL_EXT_shared_texture_palette GL_EXT_rescale_normal GL_EXT_abgr GL_SGIS_texture_edge_clamp 3DFX_set_global_palette GL_FXMESA_global_texture_lod_bias";
+ switch (name) {
+ case GL_RENDERER:
+ {
+ static char buf[80];
+
+ if (glbHWConfig.SSTs[glbCurrentBoard].type == GR_SSTTYPE_VOODOO) {
+ GrVoodooConfig_t *vc =
+ &glbHWConfig.SSTs[glbCurrentBoard].sstBoard.VoodooConfig;
+
+ sprintf(buf,
+ "Mesa Glide v0.30 Voodoo_Graphics %d "
+ "CARD/%d FB/%d TM/%d TMU/%s",
+ glbCurrentBoard,
+ (vc->sliDetect ? (vc->fbRam * 2) : vc->fbRam),
+ (vc->tmuConfig[GR_TMU0].tmuRam +
+ ((vc->nTexelfx > 1) ? vc->tmuConfig[GR_TMU1].
+ tmuRam : 0)), vc->nTexelfx,
+ (vc->sliDetect ? "SLI" : "NOSLI"));
+ }
+ else if (glbHWConfig.SSTs[glbCurrentBoard].type == GR_SSTTYPE_SST96) {
+ GrSst96Config_t *sc =
+ &glbHWConfig.SSTs[glbCurrentBoard].sstBoard.SST96Config;
+
+ sprintf(buf,
+ "Glide v0.30 Voodoo_Rush %d "
+ "CARD/%d FB/%d TM/%d TMU/NOSLI",
+ glbCurrentBoard,
+ sc->fbRam, sc->tmuConfig.tmuRam, sc->nTexelfx);
+ }
+ else {
+ strcpy(buf, "Glide v0.30 UNKNOWN");
+ }
+ return (GLubyte *) buf;
+ }
+ default:
+ return NULL;
+ }
+}
- static char buf[MAX_NUM_SST][64];
+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 */
+ &_tnl_texgen_stage,
+ &_tnl_texture_transform_stage,
+ &_tnl_point_attenuation_stage,
+ &_tnl_render_stage,
+ 0,
+};
- fxQueryHardware();
- switch (name) {
- case GL_RENDERER:
- if(glbHWConfig.SSTs[glbCurrentBoard].type==GR_SSTTYPE_VOODOO) {
- sprintf(buf[glbCurrentBoard],"Mesa Glide v0.30 Voodoo_Graphics %d CARD/%d FB/%d TM/%d TMU/%s",
- glbCurrentBoard,
- (glbHWConfig.SSTs[glbCurrentBoard].sstBoard.VoodooConfig.sliDetect ?
- (glbHWConfig.SSTs[glbCurrentBoard].sstBoard.VoodooConfig.fbRam*2) :
- glbHWConfig.SSTs[glbCurrentBoard].sstBoard.VoodooConfig.fbRam),
- glbHWConfig.SSTs[glbCurrentBoard].sstBoard.VoodooConfig.tmuConfig[GR_TMU0].tmuRam+
- ((glbHWConfig.SSTs[glbCurrentBoard].sstBoard.VoodooConfig.nTexelfx>1) ?
- glbHWConfig.SSTs[glbCurrentBoard].sstBoard.VoodooConfig.tmuConfig[GR_TMU1].tmuRam :
- 0),
+int
+fxDDInitFxMesaContext(fxMesaContext fxMesa)
+{
+ int i;
- glbHWConfig.SSTs[glbCurrentBoard].sstBoard.VoodooConfig.nTexelfx,
+ for (i = 0; i < 256; i++) {
+ gl_ubyte_to_float_255_color_tab[i] = (float) i;
+ }
- (glbHWConfig.SSTs[glbCurrentBoard].sstBoard.VoodooConfig.sliDetect ? "SLI" : "NOSLI")
- );
- }
- else {
- if(glbHWConfig.SSTs[glbCurrentBoard].type==GR_SSTTYPE_SST96)
- sprintf(buf[glbCurrentBoard],"Glide v0.30 Voodoo_Rush %d CARD/%d FB/%d TM/%d TMU/NOSLI",
- glbCurrentBoard,
+ FX_setupGrVertexLayout();
- glbHWConfig.SSTs[glbCurrentBoard].sstBoard.SST96Config.fbRam,
+ if (getenv("FX_EMULATE_SINGLE_TMU"))
+ fxMesa->haveTwoTMUs = GL_FALSE;
- glbHWConfig.SSTs[glbCurrentBoard].sstBoard.SST96Config.tmuConfig.tmuRam,
+ if (getenv("FX_GLIDE_SWAPINTERVAL"))
+ fxMesa->swapInterval = atoi(getenv("FX_GLIDE_SWAPINTERVAL"));
+ else
+ fxMesa->swapInterval = 1;
- glbHWConfig.SSTs[glbCurrentBoard].sstBoard.SST96Config.nTexelfx
- );
- else
- strcpy(buf[glbCurrentBoard],"Glide v0.30 UNKNOWN");
- }
- return (GLubyte *) buf[glbCurrentBoard];
- case GL_EXTENSIONS:
- return (GLubyte *) extensions;
- default:
- return NULL;
- }
-}
+ if (getenv("MESA_FX_SWAP_PENDING"))
+ fxMesa->maxPendingSwapBuffers = atoi(getenv("MESA_FX_SWAP_PENDING"));
+ else
+ fxMesa->maxPendingSwapBuffers = 2;
+ if (getenv("MESA_FX_INFO"))
+ fxMesa->verbose = GL_TRUE;
+ else
+ fxMesa->verbose = GL_FALSE;
-void fxDDInitExtensions( GLcontext *ctx )
-{
- fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
+ 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 = GR_CMP_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 = GR_CMP_LESS;
+
+ FX_grColorMask(FXTRUE, fxMesa->haveAlphaBuffer ? FXTRUE : FXFALSE);
+ if (fxMesa->haveDoubleBuffer) {
+ fxMesa->currentFB = GR_BUFFER_BACKBUFFER;
+ FX_grRenderBuffer(GR_BUFFER_BACKBUFFER);
+ }
+ else {
+ fxMesa->currentFB = GR_BUFFER_FRONTBUFFER;
+ FX_grRenderBuffer(GR_BUFFER_FRONTBUFFER);
+ }
- gl_extensions_add( ctx, DEFAULT_ON, "3DFX_set_global_palette", 0 );
- gl_extensions_add( ctx, DEFAULT_ON, "GL_FXMESA_global_texture_lod_bias", 0);
-
- if (!fxMesa->emulateTwoTMUs)
- gl_extensions_disable( ctx, "GL_ARB_multitexture" );
+ fxMesa->state = malloc(FX_grGetInteger(FX_GLIDE_STATE_SIZE));
+ fxMesa->fogTable = (GrFog_t *) malloc(FX_grGetInteger(FX_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)
+ FX_grDepthBufferMode(GR_DEPTHBUFFER_ZBUFFER);
+
+#ifndef FXMESA_USE_ARGB
+ FX_grLfbWriteColorFormat(GR_COLORFORMAT_ABGR); /* Not every Glide has this */
+#endif
+
+ fxMesa->textureAlign = FX_grGetInteger(FX_TEXTURE_ALIGN);
+ fxMesa->glCtx->Const.MaxTextureLevels = 9;
+ fxMesa->glCtx->Const.MaxTextureUnits = fxMesa->haveTwoTMUs ? 2 : 1;
+ fxMesa->new_state = _NEW_ALL;
+
+ /* Initialize the software rasterizer and helper modules.
+ */
+ _swrast_CreateContext(fxMesa->glCtx);
+ _ac_CreateContext(fxMesa->glCtx);
+ _tnl_CreateContext(fxMesa->glCtx);
+ _swsetup_CreateContext(fxMesa->glCtx);
+
+ _tnl_destroy_pipeline(fxMesa->glCtx);
+ _tnl_install_pipeline(fxMesa->glCtx, fx_pipeline);
+
+ fxAllocVB(fxMesa->glCtx);
+
+ fxSetupDDPointers(fxMesa->glCtx);
+ fxDDInitTriFuncs(fxMesa->glCtx);
+
+ /* Tell the software rasterizer to use pixel fog always.
+ */
+ _swrast_allow_vertex_fog(fxMesa->glCtx, GL_FALSE);
+ _swrast_allow_pixel_fog(fxMesa->glCtx, 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( fxMesa->glCtx, GL_FALSE ); */
+
+ fxDDInitExtensions(fxMesa->glCtx);
+
+ FX_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);
+}
+
+
+
-/* This is a no-op, since the z-buffer is in hardware */
-static void fxAllocDepthBuffer(GLcontext *ctx)
+void
+fxDDInitExtensions(GLcontext * ctx)
{
- if (MESA_VERBOSE&VERBOSE_DRIVER) {
- fprintf(stderr,"fxmesa: fxAllocDepthBuffer()\n");
- }
+ fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
+
+ _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");
+
+ if (fxMesa->haveTwoTMUs)
+ _mesa_enable_extension(ctx, "GL_ARB_multitexture");
}
+
/************************************************************************/
/************************************************************************/
/************************************************************************/
-/* Check if the hardware supports the current context
+/* Check if the hardware supports the current context
*
* Performs similar work to fxDDChooseRenderState() - should be merged.
*/
-static GLboolean fxIsInHardware(GLcontext *ctx)
+GLboolean
+fx_check_IsInHardware(GLcontext * ctx)
{
- fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
-
- if (!ctx->Hint.AllowDrawMem)
- return GL_TRUE; /* you'll take it and like it */
-
- if((ctx->RasterMask & STENCIL_BIT) ||
- ((ctx->Color.BlendEnabled) && (ctx->Color.BlendEquation!=GL_FUNC_ADD_EXT)) ||
- ((ctx->Color.ColorLogicOpEnabled) && (ctx->Color.LogicOp!=GL_COPY)) ||
- (ctx->Light.Model.ColorControl==GL_SEPARATE_SPECULAR_COLOR) ||
- (!((ctx->Color.ColorMask[RCOMP]==ctx->Color.ColorMask[GCOMP]) &&
- (ctx->Color.ColorMask[GCOMP]==ctx->Color.ColorMask[BCOMP]) &&
- (ctx->Color.ColorMask[ACOMP]==ctx->Color.ColorMask[ACOMP])))
- )
- return GL_FALSE;
-
- /* Unsupported texture/multitexture cases */
-
- if(fxMesa->emulateTwoTMUs) {
- if((ctx->Enabled & (TEXTURE0_3D | TEXTURE1_3D)) ||
- /* Not very well written ... */
- ((ctx->Enabled & (TEXTURE0_1D | TEXTURE1_1D)) &&
- ((ctx->Enabled & (TEXTURE0_2D | TEXTURE1_2D))!=(TEXTURE0_2D | TEXTURE1_2D)))
- )
- return GL_FALSE;
+ fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
- if((ctx->Texture.ReallyEnabled & TEXTURE0_2D) &&
- (ctx->Texture.Unit[0].EnvMode==GL_BLEND))
+ if (ctx->RenderMode != GL_RENDER)
return GL_FALSE;
- if((ctx->Texture.ReallyEnabled & TEXTURE1_2D) &&
- (ctx->Texture.Unit[1].EnvMode==GL_BLEND))
+ if (ctx->Stencil.Enabled ||
+ (ctx->Color._DrawDestMask != FRONT_LEFT_BIT &&
+ ctx->Color._DrawDestMask != BACK_LEFT_BIT) ||
+ ((ctx->Color.BlendEnabled)
+ && (ctx->Color.BlendEquation != GL_FUNC_ADD_EXT))
+ || ((ctx->Color.ColorLogicOpEnabled)
+ && (ctx->Color.LogicOp != GL_COPY))
+ || (ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR)
+ ||
+ (!((ctx->
+ Color.ColorMask[RCOMP] == ctx->Color.ColorMask[GCOMP])
+ && (ctx->Color.ColorMask[GCOMP] == ctx->Color.ColorMask[BCOMP])
+ && (ctx->Color.ColorMask[ACOMP] == ctx->Color.ColorMask[ACOMP])))
+ ) {
return GL_FALSE;
+ }
+ /* Unsupported texture/multitexture cases */
+
+ if (fxMesa->haveTwoTMUs) {
+ /* we can only do 2D textures */
+ if (ctx->Texture.Unit[0]._ReallyEnabled & ~TEXTURE_2D_BIT)
+ return GL_FALSE;
+ if (ctx->Texture.Unit[1]._ReallyEnabled & ~TEXTURE_2D_BIT)
+ return GL_FALSE;
+
+ if (ctx->Texture.Unit[0]._ReallyEnabled & TEXTURE_2D_BIT) {
+ 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 GL_FALSE;
+ }
+ if (ctx->Texture.Unit[0]._Current->Image[0]->Border > 0)
+ return GL_FALSE;
+ }
+ if (ctx->Texture.Unit[1]._ReallyEnabled & TEXTURE_2D_BIT) {
+ if (ctx->Texture.Unit[1].EnvMode == GL_BLEND)
+ return GL_FALSE;
+ if (ctx->Texture.Unit[1]._Current->Image[0]->Border > 0)
+ return GL_FALSE;
+ }
- if (MESA_VERBOSE & (VERBOSE_DRIVER|VERBOSE_TEXTURE))
- fprintf(stderr, "fxMesa: fxIsInHardware, envmode is %s/%s\n",
- gl_lookup_enum_by_nr(ctx->Texture.Unit[0].EnvMode),
- gl_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...
- */
- if((ctx->Enabled & (TEXTURE0_1D | TEXTURE0_2D | TEXTURE0_3D)) &&
- (ctx->Enabled & (TEXTURE1_1D | TEXTURE1_2D | TEXTURE1_3D)))
- {
- /* Can't use multipass to blend a multitextured triangle - fall
- * back to software.
- */
- if (!fxMesa->haveTwoTMUs && ctx->Color.BlendEnabled)
- return GL_FALSE;
-
- 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 (MESA_VERBOSE&VERBOSE_DRIVER)
- fprintf(stderr, "fxMesa: unsupported multitex env mode\n");
-
- return GL_FALSE;
- }
- }
- } else {
- if((ctx->Enabled & (TEXTURE1_1D | TEXTURE1_2D | TEXTURE1_3D)) ||
- /* Not very well written ... */
- ((ctx->Enabled & TEXTURE0_1D) &&
- (!(ctx->Enabled & TEXTURE0_2D)))
- )
- return GL_FALSE;
+ if (MESA_VERBOSE & (VERBOSE_DRIVER | VERBOSE_TEXTURE))
+ fprintf(stderr, "fxMesa: fxIsInHardware, envmode is %s/%s\n",
+ _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 GL_FALSE;
+ }
+
+ 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 (MESA_VERBOSE & VERBOSE_DRIVER)
+ fprintf(stderr, "fxMesa: unsupported multitex env mode\n");
+ return GL_FALSE;
+ }
+ }
+ }
+ else {
+ /* we have just one texture unit */
+ if (ctx->Texture._EnabledUnits > 0x1) {
+ return GL_FALSE;
+ }
-
- if((ctx->Texture.ReallyEnabled & TEXTURE0_2D) &&
- (ctx->Texture.Unit[0].EnvMode==GL_BLEND))
- return GL_FALSE;
- }
+ if ((ctx->Texture.Unit[0]._ReallyEnabled & TEXTURE_2D_BIT) &&
+ (ctx->Texture.Unit[0].EnvMode == GL_BLEND)) {
+ return GL_FALSE;
+ }
+ }
- return GL_TRUE;
+ return GL_TRUE;
}
-#define INTERESTED (~(NEW_MODELVIEW|NEW_PROJECTION|NEW_PROJECTION|NEW_TEXTURE_MATRIX|NEW_USER_CLIP|NEW_CLIENT_STATE|NEW_TEXTURE_ENABLE))
-
-static void fxDDUpdateDDPointers(GLcontext *ctx)
+static void
+update_texture_scales(GLcontext * ctx)
{
- fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
- GLuint new_state = ctx->NewState;
-
- if (MESA_VERBOSE&(VERBOSE_DRIVER|VERBOSE_STATE))
- fprintf(stderr,"fxmesa: fxDDUpdateDDPointers(...)\n");
-
- if (new_state & (NEW_RASTER_OPS|NEW_TEXTURING))
- fxMesa->is_in_hardware = fxIsInHardware(ctx);
-
- if (fxMesa->is_in_hardware) {
- if (fxMesa->new_state)
- fxSetupFXUnits(ctx);
-
- if(new_state & INTERESTED) {
- fxDDChooseRenderState( ctx );
- fxMesa->RenderVBTables=fxDDChooseRenderVBTables(ctx);
- ctx->Driver.RasterSetup=fxDDChooseSetupFunction(ctx);
- }
-
- ctx->Driver.PointsFunc=fxMesa->PointsFunc;
- ctx->Driver.LineFunc=fxMesa->LineFunc;
- ctx->Driver.TriangleFunc=fxMesa->TriangleFunc;
- ctx->Driver.QuadFunc=fxMesa->QuadFunc;
- ctx->Driver.RenderVBClippedTab=fxMesa->RenderVBTables[0];
- ctx->Driver.RenderVBCulledTab=fxMesa->RenderVBTables[1];
- ctx->Driver.RenderVBRawTab=fxMesa->RenderVBTables[2];
-
- }
-
- ctx->Driver.AllocDepthBuffer=fxAllocDepthBuffer;
- ctx->Driver.DepthTestSpan=fxDDDepthTestSpanGeneric;
- ctx->Driver.DepthTestPixels=fxDDDepthTestPixelsGeneric;
- ctx->Driver.ReadDepthSpanFloat=fxDDReadDepthSpanFloat;
- ctx->Driver.ReadDepthSpanInt=fxDDReadDepthSpanInt;
- ctx->Driver.RenderStart = 0;
-}
+ fxMesaContext fxMesa = FX_CONTEXT(ctx);
+ struct gl_texture_unit *t0 = &ctx->Texture.Unit[fxMesa->tmu_source[0]];
+ struct gl_texture_unit *t1 = &ctx->Texture.Unit[fxMesa->tmu_source[1]];
+
+ if (t0 && t0->_Current && FX_TEXTURE_DATA(t0)) {
+ fxMesa->s0scale = FX_TEXTURE_DATA(t0)->sScale;
+ fxMesa->t0scale = FX_TEXTURE_DATA(t0)->tScale;
+ fxMesa->inv_s0scale = 1.0 / fxMesa->s0scale;
+ fxMesa->inv_t0scale = 1.0 / fxMesa->t0scale;
+ }
+ if (t1 && t1->_Current && FX_TEXTURE_DATA(t1)) {
+ fxMesa->s1scale = FX_TEXTURE_DATA(t1)->sScale;
+ fxMesa->t1scale = FX_TEXTURE_DATA(t1)->tScale;
+ fxMesa->inv_s1scale = 1.0 / fxMesa->s1scale;
+ fxMesa->inv_t1scale = 1.0 / fxMesa->t1scale;
+ }
+}
-void fxSetupDDPointers(GLcontext *ctx)
+static void
+fxDDUpdateDDPointers(GLcontext * ctx, GLuint new_state)
{
- if (MESA_VERBOSE&VERBOSE_DRIVER) {
- fprintf(stderr,"fxmesa: fxSetupDDPointers()\n");
- }
-
- ctx->Driver.UpdateState=fxDDUpdateDDPointers;
-
- ctx->Driver.GetString=fxDDGetString;
-
- ctx->Driver.Dither=fxDDDither;
-
- ctx->Driver.NearFar=fxDDSetNearFar;
+ /* TNLcontext *tnl = TNL_CONTEXT(ctx);*/
+ fxMesaContext fxMesa = FX_CONTEXT(ctx);
- ctx->Driver.GetParameteri=fxDDGetParameteri;
+ _swrast_InvalidateState(ctx, new_state);
+ _ac_InvalidateState(ctx, new_state);
+ _tnl_InvalidateState(ctx, new_state);
+ _swsetup_InvalidateState(ctx, new_state);
- ctx->Driver.ClearIndex=NULL;
- ctx->Driver.ClearColor=fxDDClearColor;
- ctx->Driver.Clear=fxDDClear;
+ /* Recalculate fog table on projection matrix changes. This used to
+ * be triggered by the NearFar callback.
+ */
+ if (new_state & _NEW_PROJECTION)
+ fxMesa->new_state |= FX_NEW_FOG;
- ctx->Driver.Index=NULL;
- ctx->Driver.Color=fxDDSetColor;
+ if (new_state & (_FX_NEW_IS_IN_HARDWARE |
+ _FX_NEW_RENDERSTATE |
+ _FX_NEW_SETUP_FUNCTION |
+ _NEW_TEXTURE)) {
- ctx->Driver.SetBuffer=fxDDSetBuffer;
- ctx->Driver.GetBufferSize=fxDDBufferSize;
+ if (new_state & _FX_NEW_IS_IN_HARDWARE)
+ fxCheckIsInHardware(ctx);
- ctx->Driver.Bitmap=fxDDDrawBitMap;
- ctx->Driver.DrawPixels=NULL;
+ if (fxMesa->new_state)
+ fxSetupFXUnits(ctx);
- ctx->Driver.Finish=fxDDFinish;
- ctx->Driver.Flush=NULL;
+ if (fxMesa->is_in_hardware) {
+ if (new_state & _FX_NEW_RENDERSTATE)
+ fxDDChooseRenderState(ctx);
- ctx->Driver.RenderStart=NULL;
- ctx->Driver.RenderFinish=NULL;
-
- ctx->Driver.TexEnv=fxDDTexEnv;
- ctx->Driver.TexImage=fxDDTexImg;
- ctx->Driver.TexSubImage=fxDDTexSubImg;
- ctx->Driver.TexParameter=fxDDTexParam;
- ctx->Driver.BindTexture=fxDDTexBind;
- ctx->Driver.DeleteTexture=fxDDTexDel;
- ctx->Driver.UpdateTexturePalette=fxDDTexPalette;
- ctx->Driver.UseGlobalTexturePalette=fxDDTexUseGlbPalette;
-
- ctx->Driver.RectFunc=NULL;
-
- 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;
-
-
- ctx->Driver.RegisterVB=fxDDRegisterVB;
- ctx->Driver.UnregisterVB=fxDDUnregisterVB;
+ if (new_state & _FX_NEW_SETUP_FUNCTION)
+ fxChooseVertexState(ctx);
+ }
- ctx->Driver.RegisterPipelineStages = fxDDRegisterPipelineStages;
+ if (new_state & _NEW_TEXTURE)
+ update_texture_scales(ctx);
+ }
+}
- ctx->Driver.OptimizeImmediatePipeline = 0; /* nothing done yet */
- ctx->Driver.OptimizePrecalcPipeline = 0;
-/* if (getenv("MESA_USE_FAST") || getenv("FX_USE_FAST")) */
-/* ctx->Driver.OptimizePrecalcPipeline = fxDDOptimizePrecalcPipeline; */
- if (!getenv("FX_NO_FAST"))
- ctx->Driver.BuildPrecalcPipeline = fxDDBuildPrecalcPipeline;
- ctx->Driver.TriangleCaps = DD_TRI_CULL|DD_TRI_OFFSET|DD_TRI_LIGHT_TWOSIDE;
+void
+fxSetupDDPointers(GLcontext * ctx)
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
- fxSetupDDSpanPointers(ctx);
+ if (MESA_VERBOSE & VERBOSE_DRIVER) {
+ fprintf(stderr, "fxmesa: fxSetupDDPointers()\n");
+ }
- FX_CONTEXT(ctx)->render_index = 1; /* force an update */
- fxDDUpdateDDPointers(ctx);
+ 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;
+ ctx->Driver.ReadPixels = fxDDReadPixels;
+ 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;
+
+ tnl->Driver.RunPipeline = _tnl_run_pipeline;
+
+ fxSetupDDSpanPointers(ctx);
+ fxDDUpdateDDPointers(ctx, ~0);
}
* Need this to provide at least one external definition.
*/
-int gl_fx_dummy_function_dd(void)
+extern int gl_fx_dummy_function_dd(void);
+int
+gl_fx_dummy_function_dd(void)
{
- return 0;
+ return 0;
}
-#endif /* FX */
+#endif /* FX */
projects / mesa.git / blobdiff