/*
* Mesa 3-D graphics library
- * Version: 3.1
+ * Version: 3.3
*
- * Copyright (C) 1999 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
#if defined(FX)
+#include "image.h"
#include "types.h"
#include "fxdrv.h"
#include "enums.h"
#include "extensions.h"
-
+#include "pb.h"
/* These lookup table are used to extract RGB values in [0,255] from
* 16-bit pixel values.
* Initialize the FX_PixelTo{RGB} arrays.
* Input: bgrOrder - if TRUE, pixels are in BGR order, else RGB order.
*/
-void fxInitPixelTables(GLboolean bgrOrder)
+void fxInitPixelTables(fxMesaContext fxMesa, GLboolean bgrOrder)
{
GLuint pixel;
+
+ fxMesa->bgrOrder=bgrOrder;
for (pixel = 0; pixel <= 0xffff; pixel++) {
GLuint r, g, b;
if (bgrOrder) {
/**********************************************************************/
/* Enalbe/Disable dithering */
-void fxDDDither(GLcontext *ctx, GLboolean enable)
+static void fxDDDither(GLcontext *ctx, GLboolean enable)
{
if (MESA_VERBOSE&VERBOSE_DRIVER) {
fprintf(stderr,"fxmesa: fxDDDither()\n");
/* Return buffer size information */
-void fxDDBufferSize(GLcontext *ctx, GLuint *width, GLuint *height)
+static void fxDDBufferSize(GLcontext *ctx, GLuint *width, GLuint *height)
{
fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
fxMesa->clearA=alpha;
}
+
/* Clear the color and/or depth buffers */
static GLbitfield fxDDClear(GLcontext *ctx, GLbitfield mask, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
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);
- GLbitfield newMask = mask & ~(DD_STENCIL_BIT | DD_ACCUM_BIT);
-
- if (MESA_VERBOSE&VERBOSE_DRIVER) {
- fprintf(stderr,"fxmesa: fxDDClear(%d,%d,%d,%d)\n",x,y,width,height);
- }
-
- if (mask == (DD_BACK_LEFT_BIT | DD_DEPTH_BIT)
- && colorMask == 0xffffffff) {
- /* common case: clear back color buffer and depth buffer */
- FX_grRenderBuffer(GR_BUFFER_BACKBUFFER);
- FX_grBufferClear(fxMesa->clearC, fxMesa->clearA,
- (FxU16)(ctx->Depth.Clear*0xffff));
- return 0;
- }
-
- /* depth masking */
- if (newMask & DD_DEPTH_BIT) {
- FX_grDepthMask(FXTRUE);
- CLEAR_BITS(newMask, DD_DEPTH_BIT);
- }
- else {
- FX_grDepthMask(FXFALSE);
+ 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 clear in software */
- softwareMask |= (newMask & (DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT));
- CLEAR_BITS(newMask, (DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT));
+ /* do color buffer clears in software */
+ softwareMask |= (mask & (DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT));
+ mask &= ~(DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT);
}
- if (newMask & (DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT)) {
- if (newMask & DD_FRONT_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_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,
- (FxU16)(ctx->Depth.Clear*0xffff));
- }
-
- if (newMask & DD_BACK_LEFT_BIT) {
+ 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(FXFALSE);
+ }
+ 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(FXFALSE);
+ }
+ 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(FXFALSE);
+ }
+ 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_grColorMask(FXFALSE,FXFALSE);
FX_grBufferClear(fxMesa->clearC, fxMesa->clearA,
(FxU16)(ctx->Depth.Clear*0xffff));
- }
-
- CLEAR_BITS(newMask, (DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT));
- }
- else if (mask & DD_DEPTH_BIT) {
- /* clear depth but not color */
- FX_grColorMask(FXFALSE,FXFALSE);
- FX_grBufferClear(fxMesa->clearC, fxMesa->clearA,
- (FxU16)(ctx->Depth.Clear*0xffff));
- FX_grColorMask(ctx->Color.ColorMask[RCOMP] ||
- ctx->Color.ColorMask[GCOMP] ||
- ctx->Color.ColorMask[BCOMP],
- ctx->Color.ColorMask[ACOMP] && fxMesa->haveAlphaBuffer);
- }
-
- /* Restore depth mask state */
- if (mask & DD_DEPTH_BIT) {
- if (ctx->Depth.Mask) {
- FX_grDepthMask(FXTRUE);
- }
- else {
- FX_grDepthMask(FXFALSE);
- }
+ FX_grColorMask(FXTRUE, ctx->Color.ColorMask[ACOMP] && fxMesa->haveAlphaBuffer);
+ break;
+ default:
+ /* error */
+ ;
}
- return newMask | softwareMask;
+ return softwareMask;
}
fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
if (MESA_VERBOSE&VERBOSE_DRIVER) {
- fprintf(stderr,"fxmesa: fxDDSetBuffer(%x)\n",mode);
+ fprintf(stderr,"fxmesa: fxDDSetBuffer(%x)\n", (int) mode);
}
if (mode == GL_FRONT_LEFT) {
(void) buffer;
if (MESA_VERBOSE&VERBOSE_DRIVER) {
- fprintf(stderr,"fxmesa: fxDDSetBuffer(%x)\n",mode);
+ fprintf(stderr,"fxmesa: fxDDSetBuffer(%x)\n", (int) mode);
}
if (mode == GL_FRONT_LEFT) {
#ifdef XF86DRI
+/* test if window coord (px,py) is visible */
static GLboolean inClipRects(fxMesaContext fxMesa, int px, int py)
{
int i;
-
- py=fxMesa->height+fxMesa->y_offset-py;
for (i=0; i<fxMesa->numClipRects; i++) {
if ((px>=fxMesa->pClipRects[i].x1) &&
(px<fxMesa->pClipRects[i].x2) &&
const GLubyte *bitmap)
{
fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
- FxU16 *p;
GrLfbInfo_t info;
- const GLubyte *pb;
- int x,y,xmin,xmax,ymin,ymax;
- 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))
+ 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->RasterMask & (ALPHATEST_BIT |
+ BLEND_BIT |
+ DEPTH_BIT |
+ FOG_BIT |
+ LOGIC_OP_BIT |
+ SCISSOR_BIT |
+ STENCIL_BIT |
+ MASKING_BIT |
+ ALPHABUF_BIT |
+ MULTI_DRAW_BIT))
return GL_FALSE;
if (ctx->Scissor.Enabled) {
- xmin=ctx->Scissor.X;
- xmax=ctx->Scissor.X+ctx->Scissor.Width;
- ymin=ctx->Scissor.Y;
- ymax=ctx->Scissor.Y+ctx->Scissor.Height;
- } else {
- xmin=0;
- xmax=fxMesa->width;
- ymin=0;
- ymax=fxMesa->height;
- }
-
- xmin+=fxMesa->x_offset;
- xmax+=fxMesa->x_offset;
-
-#ifdef XF86DRI
-#define ISCLIPPED(rx, ry) ( ((rx)<xmin) || ((rx)>=xmax) || !inClipRects(fxMesa, rx, ry))
-#else
-#define ISCLIPPED(rx, ry) ( ((rx)<xmin) || ((rx)>=xmax) )
-#endif
-#define DRAWBIT(i) { \
- if(!ISCLIPPED(x+px, y)) \
- if( (*pb) & (1<<(i)) ) \
- (*p)=color; \
- p++; \
- x++; \
- if(x>=width) { \
- pb++; \
- break; \
- } \
-}
-
- scrwidth=fxMesa->width;
- scrheight=fxMesa->height;
-
- if ((px>=scrwidth) || (px+width<=0) || (py>=scrheight) || (py+height<=0))
- return GL_TRUE;
+ /* 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.
+ */
- pb=bitmap;
+ /* 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(py<0) {
- pb+=(height*(-py)) >> (3+1);
- height+=py;
- py=0;
+ if (width <= 0 || height <= 0)
+ return GL_TRUE; /* totally scissored away */
+ }
+ else {
+ finalUnpack = unpack;
}
- if (py+height>=scrheight)
- height-=(py+height)-scrheight;
+ /* 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(!FX_grLfbLock(GR_LFB_WRITE_ONLY,
- fxMesa->currentFB,
- GR_LFBWRITEMODE_565,
- GR_ORIGIN_UPPER_LEFT,
- FXFALSE,
- &info)) {
+ 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 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);
-
- stride=info.strideInBytes>>1;
-
- /* This code is a bit slow... */
-
- if (py>ymin) ymin=py;
- if (py+height<ymax) ymax=py+height;
-
- px+=fxMesa->x_offset;
- scrheight=fxMesa->height+fxMesa->y_offset;
-
- for(y=ymin; y<ymax; y++) {
-
- p=((FxU16 *)info.lfbPtr)+px+((scrheight-y)*stride);
+#ifdef XF86DRI
+#define INSIDE(c, x, y) inClipRects((c), (x), (y))
+#else
+#define INSIDE(c, x, y) (1)
+#endif
- for(x=0;;) {
- DRAWBIT(7); DRAWBIT(6); DRAWBIT(5); DRAWBIT(4);
- DRAWBIT(3); DRAWBIT(2); DRAWBIT(1); DRAWBIT(0);
- pb++;
+ {
+ const GLint winX = fxMesa->x_offset;
+ const GLint winY = fxMesa->y_offset + fxMesa->height - 1;
+#ifdef XF86DRI
+ const GLint dstStride = fxMesa->screen_width;
+#else
+ const GLint dstStride = info.strideInBytes / 2; /* stride in GLushorts */
+#endif
+ 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 *) gl_pixel_addr_in_image( 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) {
+ if (INSIDE(fxMesa, winX + px + col, winY - py - row))
+ 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) {
+ if (INSIDE(fxMesa, winX + px + col, winY - py - row))
+ dst[col] = color;
+ }
+ if (mask == 1U) {
+ src++;
+ mask = 128U;
+ }
+ else {
+ mask = mask >> 1;
+ }
+ }
+ if (mask != 128)
+ src++;
+ }
+ dst -= dstStride;
}
}
- FX_grLfbUnlock(GR_LFB_WRITE_ONLY,fxMesa->currentFB);
-
-#undef ISCLIPPED
-#undef DRAWBIT
+#undef INSIDE
+ FX_grLfbUnlock(GR_LFB_WRITE_ONLY,fxMesa->currentFB);
return GL_TRUE;
}
case DD_HAVE_HARDWARE_FOG:
return 1;
default:
- fprintf(stderr,"fx Driver: internal error in fxDDGetParameteri(): %x\n",param);
+ fprintf(stderr,"fx Driver: internal error in fxDDGetParameteri(): %x\n", (int) param);
fxCloseHardware();
exit(-1);
return 0;
*/
static const GLubyte *fxDDGetString(GLcontext *ctx, GLenum name)
{
- switch (name) {
- case GL_RENDERER:
#if defined(GLX_DIRECT_RENDERING)
- return "Mesa Glide - DRI VB/V3";
+ /* Building for DRI driver */
+ switch (name) {
+ case GL_RENDERER:
+ {
+ static char buffer[100];
+ char hardware[100];
+ strcpy(hardware, grGetString(GR_HARDWARE));
+ if (strcmp(hardware, "Voodoo3 (tm)") == 0)
+ strcpy(hardware, "Voodoo3");
+ else if (strcmp(hardware, "Voodoo Banshee (tm)") == 0)
+ strcpy(hardware, "VoodooBanshee");
+ else {
+ /* unexpected result: replace spaces with hyphens */
+ int i;
+ for (i = 0; hardware[i]; i++) {
+ if (hardware[i] == ' ' || hardware[i] == '\t')
+ hardware[i] = '-';
+ }
+ }
+ /* now make the GL_RENDERER string */
+ sprintf(buffer, "Mesa DRI %s 20000224", hardware);
+ return buffer;
+ }
+ case GL_VENDOR:
+ return "Precision Insight, Inc.";
+ default:
+ return NULL;
+ }
+
#else
+
+ /* Building for Voodoo1/2 stand-alone Mesa */
+ 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;
+ 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;
}
-#endif
- default:
+ default:
return NULL;
- }
+ }
+#endif
}
else
fxMesa->maxPendingSwapBuffers=2;
+ if(getenv("MESA_FX_INFO"))
+ fxMesa->verbose=GL_TRUE;
+ else
+ fxMesa->verbose=GL_FALSE;
+
fxMesa->color=0xffffffff;
fxMesa->clearC=0;
fxMesa->clearA=0;
}
-
+#if 0
+/* Example extension function */
+static void fxFooBarEXT(GLint i)
+{
+ printf("You called glFooBarEXT(%d)\n", i);
+}
+#endif
void fxDDInitExtensions( GLcontext *ctx )
{
fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
- gl_extensions_add( ctx, DEFAULT_ON, "3DFX_set_global_palette", 0 );
- gl_extensions_add( ctx, DEFAULT_ON, "GL_FXMESA_global_texture_lod_bias", 0);
+ gl_extensions_disable(ctx, "GL_EXT_blend_logic_op");
+ gl_extensions_disable(ctx, "GL_EXT_blend_minmax");
+ gl_extensions_disable(ctx, "GL_EXT_blend_subtract");
+ gl_extensions_disable(ctx, "GL_EXT_blend_color");
+ gl_extensions_disable(ctx, "GL_EXT_paletted_texture");
+
+ 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->haveTwoTMUs)
- gl_extensions_add( ctx, DEFAULT_ON, "GL_EXT_texture_env_add", 0);
+ if (!fxMesa->haveTwoTMUs)
+ gl_extensions_disable(ctx, "GL_EXT_texture_env_add");
if (!fxMesa->emulateTwoTMUs)
- gl_extensions_disable( ctx, "GL_ARB_multitexture" );
-}
+ gl_extensions_disable(ctx, "GL_ARB_multitexture");
-/*
- This driver may need to move the drawing operations to a different sub
- window. This modifies the viewport command to add our X,Y offset to all
- drawn objects that go through the viewport transformation.
-*/
-/************************************************************************/
-/************************************************************************/
-/************************************************************************/
-
-/* This is a no-op, since the z-buffer is in hardware */
-static void fxAllocDepthBuffer(GLcontext *ctx)
-{
- if (MESA_VERBOSE&VERBOSE_DRIVER) {
- fprintf(stderr,"fxmesa: fxAllocDepthBuffer()\n");
- }
+ /* Example of hooking in an extension function.
+ * For DRI-based drivers, also see __driRegisterExtensions in the
+ * tdfx_xmesa.c file.
+ */
+#if 0
+ {
+ void **dispatchTable = (void **) ctx->Exec;
+ const int _gloffset_FooBarEXT = 555; /* just an example number! */
+ const int tabSize = _glapi_get_dispatch_table_size();
+ assert(_gloffset_FooBarEXT < tabSize);
+ dispatchTable[_gloffset_FooBarEXT] = (void *) fxFooBarEXT;
+ /* XXX You would also need to hook into the display list dispatch
+ * table. Really, the implementation of extensions might as well
+ * be in the core of Mesa since core Mesa and the device driver
+ * is one big shared lib.
+ */
+ }
+#endif
}
+
/************************************************************************/
/************************************************************************/
/************************************************************************/
}
}
+static void fxDDReducedPrimitiveChange(GLcontext *ctx, GLenum prim)
+{
+ if (ctx->Polygon.CullFlag) {
+ if (ctx->PB->primitive != GL_POLYGON) { /* Lines or Points */
+ FX_grCullMode(GR_CULL_DISABLE);
+ FX_CONTEXT(ctx)->cullMode=GR_CULL_DISABLE;
+ }
+ }
+}
+
void fxSetupDDPointers(GLcontext *ctx)
{
if (MESA_VERBOSE&VERBOSE_DRIVER) {
ctx->Driver.CullFace=fxDDCullFace;
ctx->Driver.ShadeModel=fxDDShadeModel;
ctx->Driver.Enable=fxDDEnable;
+ ctx->Driver.ReducedPrimitiveChange=fxDDReducedPrimitiveChange;
ctx->Driver.RegisterVB=fxDDRegisterVB;
ctx->Driver.UnregisterVB=fxDDUnregisterVB;