/**
* Destroy an Off-Screen Mesa rendering context.
*
* \param osmesa the context to destroy
*/
GLAPI void GLAPIENTRY
OSMesaDestroyContext( OSMesaContext osmesa )
{
if (osmesa) {
if (osmesa->rb)
_mesa_reference_renderbuffer(&osmesa->rb, NULL);
_swsetup_DestroyContext( &osmesa->mesa );
_tnl_DestroyContext( &osmesa->mesa );
_vbo_DestroyContext( &osmesa->mesa );
_swrast_DestroyContext( &osmesa->mesa );
_mesa_destroy_visual( osmesa->gl_visual );
_mesa_unreference_framebuffer( &osmesa->gl_buffer );
_mesa_free_context_data( &osmesa->mesa );
_mesa_free( osmesa );
}
}
/**
* Set *ptr to point to fb, with refcounting and locking.
*/
void
_mesa_reference_framebuffer(struct gl_framebuffer **ptr,
struct gl_framebuffer *fb)
{
assert(ptr);
if (*ptr == fb) {
/* no change */
return;
}
if (*ptr) {
_mesa_unreference_framebuffer(ptr);
}
assert(!*ptr);
assert(fb);
_glthread_LOCK_MUTEX(fb->Mutex);
fb->RefCount++;
_glthread_UNLOCK_MUTEX(fb->Mutex);
*ptr = fb;
}
void GLAPIENTRY
_mesa_DeleteFramebuffersEXT(GLsizei n, const GLuint *framebuffers)
{
GLint i;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
FLUSH_VERTICES(ctx, _NEW_BUFFERS);
/* The above doesn't fully flush the drivers in the way that a
* glFlush does, but that is required here:
*/
if (ctx->Driver.Flush)
ctx->Driver.Flush(ctx);
for (i = 0; i < n; i++) {
if (framebuffers[i] > 0) {
struct gl_framebuffer *fb;
fb = _mesa_lookup_framebuffer(ctx, framebuffers[i]);
if (fb) {
ASSERT(fb == &DummyFramebuffer || fb->Name == framebuffers[i]);
/* check if deleting currently bound framebuffer object */
if (fb == ctx->DrawBuffer) {
/* bind default */
ASSERT(fb->RefCount >= 2);
_mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
}
/* remove from hash table immediately, to free the ID */
_mesa_HashRemove(ctx->Shared->FrameBuffers, framebuffers[i]);
if (fb != &DummyFramebuffer) {
/* But the object will not be freed until it's no longer
* bound in any context.
*/
_mesa_unreference_framebuffer(&fb);
}
}
}
}
}
static void
fbDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
{
_mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
}
/*
* Destroy the given FX/Mesa context.
*/
void GLAPIENTRY
fxMesaDestroyContext(fxMesaContext fxMesa)
{
if (TDFX_DEBUG & VERBOSE_DRIVER) {
fprintf(stderr, "fxMesaDestroyContext(...)\n");
}
if (!fxMesa)
return;
if (fxMesa->verbose) {
fprintf(stderr, "Misc Stats:\n");
fprintf(stderr, " # swap buffer: %u\n", fxMesa->stats.swapBuffer);
if (!fxMesa->stats.swapBuffer)
fxMesa->stats.swapBuffer = 1;
fprintf(stderr, "Textures Stats:\n");
fprintf(stderr, " Free texture memory on TMU0: %d\n",
fxMesa->freeTexMem[FX_TMU0]);
if (fxMesa->haveTwoTMUs)
fprintf(stderr, " Free texture memory on TMU1: %d\n",
fxMesa->freeTexMem[FX_TMU1]);
fprintf(stderr, " # request to TMM to upload a texture objects: %u\n",
fxMesa->stats.reqTexUpload);
fprintf(stderr,
" # request to TMM to upload a texture objects per swapbuffer: %.2f\n",
fxMesa->stats.reqTexUpload / (float) fxMesa->stats.swapBuffer);
fprintf(stderr, " # texture objects uploaded: %u\n",
fxMesa->stats.texUpload);
fprintf(stderr, " # texture objects uploaded per swapbuffer: %.2f\n",
fxMesa->stats.texUpload / (float) fxMesa->stats.swapBuffer);
fprintf(stderr, " # MBs uploaded to texture memory: %.2f\n",
fxMesa->stats.memTexUpload / (float) (1 << 20));
fprintf(stderr,
" # MBs uploaded to texture memory per swapbuffer: %.2f\n",
(fxMesa->stats.memTexUpload /
(float) fxMesa->stats.swapBuffer) / (float) (1 << 20));
}
glbTotNumCtx--;
if (!glbTotNumCtx && getenv("MESA_FX_INFO")) {
GrSstPerfStats_t st;
FX_grSstPerfStats(&st);
fprintf(stderr, "Pixels Stats:\n");
fprintf(stderr, " # pixels processed (minus buffer clears): %u\n",
(unsigned) st.pixelsIn);
fprintf(stderr, " # pixels not drawn due to chroma key test failure: %u\n",
(unsigned) st.chromaFail);
fprintf(stderr, " # pixels not drawn due to depth test failure: %u\n",
(unsigned) st.zFuncFail);
fprintf(stderr,
" # pixels not drawn due to alpha test failure: %u\n",
(unsigned) st.aFuncFail);
fprintf(stderr, " # pixels drawn (including buffer clears and LFB writes): %u\n",
(unsigned) st.pixelsOut);
}
/* close the hardware first,
* so we can debug atexit problems (memory leaks, etc).
*/
grSstWinClose(fxMesa->glideContext);
fxCloseHardware();
fxDDDestroyFxMesaContext(fxMesa); /* must be before _mesa_destroy_context */
_mesa_destroy_visual(fxMesa->glVis);
_mesa_destroy_context(fxMesa->glCtx);
_mesa_unreference_framebuffer(&fxMesa->glBuffer);
fxTMClose(fxMesa); /* must be after _mesa_destroy_context */
FREE(fxMesa);
if (fxMesa == fxMesaCurrentCtx)
fxMesaCurrentCtx = NULL;
}
/*
* Create a new FX/Mesa context and return a handle to it.
*/
fxMesaContext GLAPIENTRY
fxMesaCreateContext(GLuint win,
GrScreenResolution_t res,
GrScreenRefresh_t ref, const GLint attribList[])
{
fxMesaContext fxMesa = NULL;
GLcontext *ctx = NULL, *shareCtx = NULL;
struct dd_function_table functions;
int i;
const char *str;
int sliaa, numSLI, samplesPerChip;
struct SstCard_St *voodoo;
struct tdfx_glide *Glide;
GLboolean aux;
GLboolean doubleBuffer;
GLuint colDepth;
GLuint depthSize, alphaSize, stencilSize, accumSize;
GLuint redBits, greenBits, blueBits, alphaBits;
GrPixelFormat_t pixFmt;
if (TDFX_DEBUG & VERBOSE_DRIVER) {
fprintf(stderr, "fxMesaCreateContext(...)\n");
}
/* Okay, first process the user flags */
aux = GL_FALSE;
doubleBuffer = GL_FALSE;
colDepth = 16;
depthSize = alphaSize = stencilSize = accumSize = 0;
i = 0;
while (attribList[i] != FXMESA_NONE) {
switch (attribList[i]) {
case FXMESA_COLORDEPTH:
colDepth = attribList[++i];
break;
case FXMESA_DOUBLEBUFFER:
doubleBuffer = GL_TRUE;
break;
case FXMESA_ALPHA_SIZE:
if ((alphaSize = attribList[++i])) {
aux = GL_TRUE;
}
break;
case FXMESA_DEPTH_SIZE:
if ((depthSize = attribList[++i])) {
aux = GL_TRUE;
}
break;
case FXMESA_STENCIL_SIZE:
stencilSize = attribList[++i];
break;
case FXMESA_ACCUM_SIZE:
accumSize = attribList[++i];
break;
/* XXX ugly hack here for sharing display lists */
case FXMESA_SHARE_CONTEXT:
shareCtx = (GLcontext *)attribList[++i];
break;
default:
fprintf(stderr, "fxMesaCreateContext: ERROR: wrong parameter (%d) passed\n", attribList[i]);
return NULL;
}
i++;
}
if (!fxQueryHardware()) {
str = "no Voodoo hardware!";
goto errorhandler;
}
grSstSelect(glbCurrentBoard);
/*grEnable(GR_OPENGL_MODE_EXT);*/ /* [koolsmoky] */
voodoo = &glbHWConfig.SSTs[glbCurrentBoard];
fxMesa = (fxMesaContext)CALLOC_STRUCT(tfxMesaContext);
if (!fxMesa) {
str = "private context";
goto errorhandler;
}
if (getenv("MESA_FX_INFO")) {
fxMesa->verbose = GL_TRUE;
}
fxMesa->type = voodoo->type;
fxMesa->HavePalExt = voodoo->HavePalExt && !getenv("MESA_FX_IGNORE_PALEXT");
fxMesa->HavePixExt = voodoo->HavePixExt && !getenv("MESA_FX_IGNORE_PIXEXT");
fxMesa->HaveTexFmt = voodoo->HaveTexFmt && !getenv("MESA_FX_IGNORE_TEXFMT");
fxMesa->HaveCmbExt = voodoo->HaveCmbExt && !getenv("MESA_FX_IGNORE_CMBEXT");
fxMesa->HaveMirExt = voodoo->HaveMirExt && !getenv("MESA_FX_IGNORE_MIREXT");
fxMesa->HaveTexUma = voodoo->HaveTexUma && !getenv("MESA_FX_IGNORE_TEXUMA");
fxMesa->Glide = glbHWConfig.Glide;
Glide = &fxMesa->Glide;
fxMesa->HaveTexus2 = Glide->txImgQuantize &&
Glide->txMipQuantize &&
Glide->txPalToNcc && !getenv("MESA_FX_IGNORE_TEXUS2");
/* Determine if we need vertex swapping, RGB order and SLI/AA */
sliaa = 0;
switch (fxMesa->type) {
case GR_SSTTYPE_VOODOO:
case GR_SSTTYPE_SST96:
case GR_SSTTYPE_Banshee:
fxMesa->bgrOrder = GL_TRUE;
fxMesa->snapVertices = (getenv("MESA_FX_NOSNAP") == NULL);
break;
case GR_SSTTYPE_Voodoo2:
fxMesa->bgrOrder = GL_TRUE;
fxMesa->snapVertices = GL_FALSE;
break;
case GR_SSTTYPE_Voodoo4:
case GR_SSTTYPE_Voodoo5:
/* number of SLI units and AA Samples per chip */
if ((str = Glide->grGetRegistryOrEnvironmentStringExt("SSTH3_SLI_AA_CONFIGURATION")) != NULL) {
sliaa = atoi(str);
}
case GR_SSTTYPE_Voodoo3:
default:
fxMesa->bgrOrder = GL_FALSE;
fxMesa->snapVertices = GL_FALSE;
break;
}
/* XXX todo - Add the old SLI/AA settings for Napalm. */
switch(voodoo->numChips) {
case 4: /* 4 chips */
switch(sliaa) {
case 8: /* 8 Sample AA */
numSLI = 1;
samplesPerChip = 2;
break;
case 7: /* 4 Sample AA */
numSLI = 1;
samplesPerChip = 1;
break;
case 6: /* 2 Sample AA */
numSLI = 2;
samplesPerChip = 1;
break;
default:
numSLI = 4;
samplesPerChip = 1;
}
break;
case 2: /* 2 chips */
switch(sliaa) {
case 4: /* 4 Sample AA */
numSLI = 1;
samplesPerChip = 2;
break;
case 3: /* 2 Sample AA */
numSLI = 1;
samplesPerChip = 1;
break;
default:
numSLI = 2;
samplesPerChip = 1;
}
break;
default: /* 1 chip */
switch(sliaa) {
case 1: /* 2 Sample AA */
numSLI = 1;
samplesPerChip = 2;
break;
default:
numSLI = 1;
samplesPerChip = 1;
}
}
fxMesa->fsaa = samplesPerChip * voodoo->numChips / numSLI; /* 1:noFSAA, 2:2xFSAA, 4:4xFSAA, 8:8xFSAA */
switch (fxMesa->colDepth = colDepth) {
case 15:
redBits = 5;
greenBits = 5;
blueBits = 5;
alphaBits = depthSize ? 1 : 8;
switch(fxMesa->fsaa) {
case 8:
pixFmt = GR_PIXFMT_AA_8_ARGB_1555;
break;
case 4:
pixFmt = GR_PIXFMT_AA_4_ARGB_1555;
break;
case 2:
pixFmt = GR_PIXFMT_AA_2_ARGB_1555;
break;
default:
pixFmt = GR_PIXFMT_ARGB_1555;
}
break;
case 16:
redBits = 5;
greenBits = 6;
blueBits = 5;
alphaBits = depthSize ? 0 : 8;
switch(fxMesa->fsaa) {
case 8:
pixFmt = GR_PIXFMT_AA_8_RGB_565;
break;
case 4:
pixFmt = GR_PIXFMT_AA_4_RGB_565;
break;
case 2:
pixFmt = GR_PIXFMT_AA_2_RGB_565;
break;
default:
pixFmt = GR_PIXFMT_RGB_565;
}
break;
case 24:
fxMesa->colDepth = 32;
case 32:
redBits = 8;
greenBits = 8;
blueBits = 8;
alphaBits = 8;
switch(fxMesa->fsaa) {
case 8:
pixFmt = GR_PIXFMT_AA_8_ARGB_8888;
break;
case 4:
pixFmt = GR_PIXFMT_AA_4_ARGB_8888;
break;
case 2:
pixFmt = GR_PIXFMT_AA_2_ARGB_8888;
break;
default:
pixFmt = GR_PIXFMT_ARGB_8888;
}
break;
default:
str = "pixelFormat";
goto errorhandler;
}
/* Tips:
* 1. we don't bother setting/checking AUX for stencil, because we'll decide
* later whether we have HW stencil, based on depth buffer (thus AUX is
* properly set)
* 2. when both DEPTH and ALPHA are enabled, depth should win. However, it is
* not clear whether 15bpp and 32bpp require AUX alpha buffer. Furthermore,
* alpha buffering is required only if destination alpha is used in alpha
* blending; alpha blending modes that do not use destination alpha can be
* used w/o alpha buffer.
* 3. `alphaBits' is what we can provide
* `alphaSize' is what app requests
* if we cannot provide enough bits for alpha buffer, we should fallback to
* SW alpha. However, setting `alphaBits' to `alphaSize' might confuse some
* of the span functions...
*/
fxMesa->haveHwAlpha = GL_FALSE;
if (alphaSize && (alphaSize <= alphaBits)) {
alphaSize = alphaBits;
fxMesa->haveHwAlpha = GL_TRUE;
}
fxMesa->haveHwStencil = (fxMesa->HavePixExt && stencilSize && depthSize == 24);
fxMesa->haveZBuffer = depthSize > 0;
fxMesa->haveDoubleBuffer = doubleBuffer;
fxMesa->haveGlobalPaletteTexture = GL_FALSE;
fxMesa->board = glbCurrentBoard;
fxMesa->haveTwoTMUs = (voodoo->nTexelfx > 1);
if ((str = Glide->grGetRegistryOrEnvironmentStringExt("FX_GLIDE_NUM_TMU"))) {
if (atoi(str) <= 1) {
fxMesa->haveTwoTMUs = GL_FALSE;
}
}
if ((str = Glide->grGetRegistryOrEnvironmentStringExt("FX_GLIDE_SWAPPENDINGCOUNT"))) {
fxMesa->maxPendingSwapBuffers = atoi(str);
if (fxMesa->maxPendingSwapBuffers > 6) {
fxMesa->maxPendingSwapBuffers = 6;
} else if (fxMesa->maxPendingSwapBuffers < 0) {
fxMesa->maxPendingSwapBuffers = 0;
}
} else {
fxMesa->maxPendingSwapBuffers = 2;
}
if ((str = Glide->grGetRegistryOrEnvironmentStringExt("FX_GLIDE_SWAPINTERVAL"))) {
fxMesa->swapInterval = atoi(str);
} else {
fxMesa->swapInterval = 0;
}
BEGIN_BOARD_LOCK();
if (fxMesa->HavePixExt) {
fxMesa->glideContext = Glide->grSstWinOpenExt((FxU32)win, res, ref,
GR_COLORFORMAT_ABGR, GR_ORIGIN_LOWER_LEFT,
pixFmt,
2, aux);
} else if (pixFmt == GR_PIXFMT_RGB_565) {
fxMesa->glideContext = grSstWinOpen((FxU32)win, res, ref,
GR_COLORFORMAT_ABGR, GR_ORIGIN_LOWER_LEFT,
2, aux);
} else {
fxMesa->glideContext = 0;
}
END_BOARD_LOCK();
if (!fxMesa->glideContext) {
str = "grSstWinOpen";
goto errorhandler;
}
/* screen */
fxMesa->screen_width = FX_grSstScreenWidth();
fxMesa->screen_height = FX_grSstScreenHeight();
/* window inside screen */
fxMesa->width = fxMesa->screen_width;
fxMesa->height = fxMesa->screen_height;
/* scissor inside window */
fxMesa->clipMinX = 0;
fxMesa->clipMaxX = fxMesa->width;
fxMesa->clipMinY = 0;
fxMesa->clipMaxY = fxMesa->height;
if (fxMesa->verbose) {
FxI32 tmuRam, fbRam;
/* Not that it matters, but tmuRam and fbRam change after grSstWinOpen. */
tmuRam = voodoo->tmuConfig[GR_TMU0].tmuRam;
fbRam = voodoo->fbRam;
BEGIN_BOARD_LOCK();
grGet(GR_MEMORY_TMU, 4, &tmuRam);
grGet(GR_MEMORY_FB, 4, &fbRam);
END_BOARD_LOCK();
fprintf(stderr, "Voodoo Using Glide %s\n", grGetString(GR_VERSION));
fprintf(stderr, "Voodoo Board: %d/%d, %s, %d GPU\n",
fxMesa->board + 1,
glbHWConfig.num_sst,
grGetString(GR_HARDWARE),
voodoo->numChips);
fprintf(stderr, "Voodoo Memory: FB = %ld, TM = %d x %ld\n",
fbRam,
voodoo->nTexelfx,
tmuRam);
fprintf(stderr, "Voodoo Screen: %dx%d:%d %s, %svertex snapping\n",
fxMesa->screen_width,
fxMesa->screen_height,
colDepth,
fxMesa->bgrOrder ? "BGR" : "RGB",
fxMesa->snapVertices ? "" : "no ");
}
sprintf(fxMesa->rendererString, "Mesa %s v0.63 %s%s",
grGetString(GR_RENDERER),
grGetString(GR_HARDWARE),
((fxMesa->type < GR_SSTTYPE_Voodoo4) && (voodoo->numChips > 1)) ? " SLI" : "");
fxMesa->glVis = _mesa_create_visual(GL_TRUE, /* RGB mode */
doubleBuffer,
GL_FALSE, /* stereo */
redBits, /* RGBA.R bits */
greenBits, /* RGBA.G bits */
blueBits, /* RGBA.B bits */
alphaSize, /* RGBA.A bits */
0, /* index bits */
depthSize, /* depth_size */
stencilSize, /* stencil_size */
accumSize,
accumSize,
accumSize,
alphaSize ? accumSize : 0,
1);
if (!fxMesa->glVis) {
str = "_mesa_create_visual";
goto errorhandler;
}
_mesa_init_driver_functions(&functions);
ctx = fxMesa->glCtx = _mesa_create_context(fxMesa->glVis, shareCtx,
&functions, (void *) fxMesa);
if (!ctx) {
str = "_mesa_create_context";
goto errorhandler;
}
if (!fxDDInitFxMesaContext(fxMesa)) {
str = "fxDDInitFxMesaContext";
goto errorhandler;
}
fxMesa->glBuffer = _mesa_create_framebuffer(fxMesa->glVis);
#if 0
/* XXX this is a complete mess :(
* _mesa_add_soft_renderbuffers
* driNewRenderbuffer
*/
GL_FALSE, /* no software depth */
stencilSize && !fxMesa->haveHwStencil,
fxMesa->glVis->accumRedBits > 0,
alphaSize && !fxMesa->haveHwAlpha);
#endif
if (!fxMesa->glBuffer) {
str = "_mesa_create_framebuffer";
goto errorhandler;
}
glbTotNumCtx++;
/* install signal handlers */
#if defined(__linux__)
/* Only install if environment var. is not set. */
if (!getenv("MESA_FX_NO_SIGNALS")) {
signal(SIGINT, cleangraphics_handler);
signal(SIGHUP, cleangraphics_handler);
signal(SIGPIPE, cleangraphics_handler);
signal(SIGFPE, cleangraphics_handler);
signal(SIGBUS, cleangraphics_handler);
signal(SIGILL, cleangraphics_handler);
signal(SIGSEGV, cleangraphics_handler);
signal(SIGTERM, cleangraphics_handler);
}
#endif
return fxMesa;
errorhandler:
if (fxMesa) {
if (fxMesa->glideContext) {
grSstWinClose(fxMesa->glideContext);
fxMesa->glideContext = 0;
}
if (fxMesa->state) {
FREE(fxMesa->state);
}
if (fxMesa->fogTable) {
FREE(fxMesa->fogTable);
}
if (fxMesa->glBuffer) {
_mesa_unreference_framebuffer(&fxMesa->glBuffer);
}
if (fxMesa->glVis) {
_mesa_destroy_visual(fxMesa->glVis);
}
if (fxMesa->glCtx) {
_mesa_destroy_context(fxMesa->glCtx);
}
FREE(fxMesa);
}
fprintf(stderr, "fxMesaCreateContext: ERROR: %s\n", str);
return NULL;
}
