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Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/glide/fxapi.c')
-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/glide/fxapi.c951
1 files changed, 951 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/glide/fxapi.c b/nx-X11/extras/Mesa/src/mesa/drivers/glide/fxapi.c
new file mode 100644
index 000000000..e535e739b
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/glide/fxapi.c
@@ -0,0 +1,951 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 4.0
+ *
+ * Copyright (C) 1999-2001 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"),
+ * 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:
+ *
+ * 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
+ * Daniel Borca
+ * Hiroshi Morii
+ */
+
+
+/* fxapi.c - public interface to FX/Mesa functions (fxmesa.h) */
+
+
+#ifdef HAVE_CONFIG_H
+#include "conf.h"
+#endif
+
+#if defined(FX)
+#include "fxdrv.h"
+
+#include "drivers/common/driverfuncs.h"
+#include "framebuffer.h"
+
+#ifndef TDFX_DEBUG
+int TDFX_DEBUG = (0
+/* | VERBOSE_VARRAY */
+/* | VERBOSE_TEXTURE */
+/* | VERBOSE_IMMEDIATE */
+/* | VERBOSE_PIPELINE */
+/* | VERBOSE_DRIVER */
+/* | VERBOSE_STATE */
+/* | VERBOSE_API */
+/* | VERBOSE_DISPLAY_LIST */
+/* | VERBOSE_LIGHTING */
+/* | VERBOSE_PRIMS */
+/* | VERBOSE_VERTS */
+ );
+#endif
+
+static fxMesaContext fxMesaCurrentCtx = NULL;
+
+/*
+ * Status of 3Dfx hardware initialization
+ */
+
+static int glbGlideInitialized = 0;
+static int glb3DfxPresent = 0;
+static int glbTotNumCtx = 0;
+
+static GrHwConfiguration glbHWConfig;
+static int glbCurrentBoard = 0;
+
+
+#if defined(__WIN32__)
+static int
+cleangraphics(void)
+{
+ glbTotNumCtx = 1;
+ fxMesaDestroyContext(fxMesaCurrentCtx);
+
+ return 0;
+}
+#elif defined(__linux__)
+static void
+cleangraphics(void)
+{
+ glbTotNumCtx = 1;
+ fxMesaDestroyContext(fxMesaCurrentCtx);
+}
+
+static void
+cleangraphics_handler(int s)
+{
+ fprintf(stderr, "fxmesa: ERROR: received a not handled signal %d\n", s);
+
+ cleangraphics();
+/* abort(); */
+ exit(1);
+}
+#endif
+
+
+/*
+ * Query 3Dfx hardware presence/kind
+ */
+static GLboolean GLAPIENTRY fxQueryHardware (void)
+{
+ if (TDFX_DEBUG & VERBOSE_DRIVER) {
+ fprintf(stderr, "fxQueryHardware()\n");
+ }
+
+ if (!glbGlideInitialized) {
+ grGlideInit();
+ glb3DfxPresent = FX_grSstQueryHardware(&glbHWConfig);
+
+ glbGlideInitialized = 1;
+
+#if defined(__WIN32__)
+ _onexit((_onexit_t) cleangraphics);
+#elif defined(__linux__)
+ /* Only register handler if environment variable is not defined. */
+ if (!getenv("MESA_FX_NO_SIGNALS")) {
+ atexit(cleangraphics);
+ }
+#endif
+ }
+
+ return glb3DfxPresent;
+}
+
+
+/*
+ * Select the Voodoo board to use when creating
+ * a new context.
+ */
+GLint GLAPIENTRY fxMesaSelectCurrentBoard (int n)
+{
+ fxQueryHardware();
+
+ if ((n < 0) || (n >= glbHWConfig.num_sst))
+ return -1;
+
+ return glbHWConfig.SSTs[glbCurrentBoard = n].type;
+}
+
+
+fxMesaContext GLAPIENTRY fxMesaGetCurrentContext (void)
+{
+ return fxMesaCurrentCtx;
+}
+
+
+void GLAPIENTRY fxGetScreenGeometry (GLint *w, GLint *h)
+{
+ GLint width = 0;
+ GLint height = 0;
+
+ if (fxMesaCurrentCtx != NULL) {
+ width = fxMesaCurrentCtx->screen_width;
+ height = fxMesaCurrentCtx->screen_height;
+ }
+
+ if (w != NULL) {
+ *w = width;
+ }
+ if (h != NULL) {
+ *h = height;
+ }
+}
+
+
+/*
+ * The 3Dfx Global Palette extension for GLQuake.
+ * More a trick than a real extesion, use the shared global
+ * palette extension.
+ */
+extern void GLAPIENTRY gl3DfxSetPaletteEXT(GLuint * pal); /* silence warning */
+void GLAPIENTRY
+gl3DfxSetPaletteEXT(GLuint * pal)
+{
+ fxMesaContext fxMesa = fxMesaCurrentCtx;
+
+ if (TDFX_DEBUG & VERBOSE_DRIVER) {
+ int i;
+
+ fprintf(stderr, "gl3DfxSetPaletteEXT(...)\n");
+
+ for (i = 0; i < 256; i++) {
+ fprintf(stderr, "\t%x\n", pal[i]);
+ }
+ }
+
+ if (fxMesa) {
+ fxMesa->haveGlobalPaletteTexture = 1;
+
+ grTexDownloadTable(GR_TEXTABLE_PALETTE, (GuTexPalette *) pal);
+ }
+}
+
+
+static GrScreenResolution_t fxBestResolution (int width, int height)
+{
+ static int resolutions[][3] = {
+ { GR_RESOLUTION_320x200, 320, 200 },
+ { GR_RESOLUTION_320x240, 320, 240 },
+ { GR_RESOLUTION_400x256, 400, 256 },
+ { GR_RESOLUTION_512x384, 512, 384 },
+ { GR_RESOLUTION_640x200, 640, 200 },
+ { GR_RESOLUTION_640x350, 640, 350 },
+ { GR_RESOLUTION_640x400, 640, 400 },
+ { GR_RESOLUTION_640x480, 640, 480 },
+ { GR_RESOLUTION_800x600, 800, 600 },
+ { GR_RESOLUTION_960x720, 960, 720 },
+ { GR_RESOLUTION_856x480, 856, 480 },
+ { GR_RESOLUTION_512x256, 512, 256 },
+ { GR_RESOLUTION_1024x768, 1024, 768 },
+ { GR_RESOLUTION_1280x1024, 1280, 1024 },
+ { GR_RESOLUTION_1600x1200, 1600, 1200 },
+ { GR_RESOLUTION_400x300, 400, 300 },
+ { GR_RESOLUTION_1152x864, 1152, 864 },
+ { GR_RESOLUTION_1280x960, 1280, 960 },
+ { GR_RESOLUTION_1600x1024, 1600, 1024 },
+ { GR_RESOLUTION_1792x1344, 1792, 1344 },
+ { GR_RESOLUTION_1856x1392, 1856, 1392 },
+ { GR_RESOLUTION_1920x1440, 1920, 1440 },
+ { GR_RESOLUTION_2048x1536, 2048, 1536 },
+ { GR_RESOLUTION_2048x2048, 2048, 2048 }
+ };
+
+ int i, size;
+ int lastvalidres = GR_RESOLUTION_640x480;
+ int min = 2048 * 2048; /* max is GR_RESOLUTION_2048x2048 */
+ GrResolution resTemplate = {
+ GR_QUERY_ANY,
+ GR_QUERY_ANY,
+ 2 /*GR_QUERY_ANY */,
+ GR_QUERY_ANY
+ };
+ GrResolution *presSupported;
+
+ fxQueryHardware();
+
+ size = grQueryResolutions(&resTemplate, NULL);
+ presSupported = malloc(size);
+
+ size /= sizeof(GrResolution);
+ grQueryResolutions(&resTemplate, presSupported);
+
+ for (i = 0; i < size; i++) {
+ int r = presSupported[i].resolution;
+ if ((width <= resolutions[r][1]) && (height <= resolutions[r][2])) {
+ if (min > (resolutions[r][1] * resolutions[r][2])) {
+ min = resolutions[r][1] * resolutions[r][2];
+ lastvalidres = r;
+ }
+ }
+ }
+
+ free(presSupported);
+
+ return resolutions[lastvalidres][0];
+}
+
+
+fxMesaContext GLAPIENTRY
+fxMesaCreateBestContext(GLuint win, GLint width, GLint height,
+ const GLint attribList[])
+{
+ int res = fxBestResolution(width, height);
+
+ if (res == -1) {
+ return NULL;
+ }
+
+ return fxMesaCreateContext(win, res, GR_REFRESH_60Hz, attribList);
+}
+
+
+/*
+ * 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_destroy_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;
+}
+
+
+/*
+ * Function to set the new window size in the context (mainly for the Voodoo Rush)
+ */
+void GLAPIENTRY
+fxMesaUpdateScreenSize(fxMesaContext fxMesa)
+{
+ fxMesa->width = FX_grSstScreenWidth();
+ fxMesa->height = FX_grSstScreenHeight();
+}
+
+
+/*
+ * 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_destroy_framebuffer(fxMesa->glBuffer);
+ fxTMClose(fxMesa); /* must be after _mesa_destroy_context */
+
+ FREE(fxMesa);
+
+ if (fxMesa == fxMesaCurrentCtx)
+ fxMesaCurrentCtx = NULL;
+}
+
+
+/*
+ * Make the specified FX/Mesa context the current one.
+ */
+void GLAPIENTRY
+fxMesaMakeCurrent(fxMesaContext fxMesa)
+{
+ if (!fxMesa) {
+ _mesa_make_current(NULL, NULL, NULL);
+ fxMesaCurrentCtx = NULL;
+
+ if (TDFX_DEBUG & VERBOSE_DRIVER) {
+ fprintf(stderr, "fxMesaMakeCurrent(NULL)\n");
+ }
+
+ return;
+ }
+
+ /* if this context is already the current one, we can return early */
+ if (fxMesaCurrentCtx == fxMesa
+ && fxMesaCurrentCtx->glCtx == _mesa_get_current_context()) {
+ if (TDFX_DEBUG & VERBOSE_DRIVER) {
+ fprintf(stderr, "fxMesaMakeCurrent(NOP)\n");
+ }
+
+ return;
+ }
+
+ if (TDFX_DEBUG & VERBOSE_DRIVER) {
+ fprintf(stderr, "fxMesaMakeCurrent(...)\n");
+ }
+
+ if (fxMesaCurrentCtx)
+ grGlideGetState((GrState *) fxMesaCurrentCtx->state);
+
+ fxMesaCurrentCtx = fxMesa;
+
+ grSstSelect(fxMesa->board);
+ grGlideSetState((GrState *) fxMesa->state);
+
+ _mesa_make_current(fxMesa->glCtx, fxMesa->glBuffer, fxMesa->glBuffer);
+
+ fxSetupDDPointers(fxMesa->glCtx);
+}
+
+
+/*
+ * Swap front/back buffers for current context if double buffered.
+ */
+void GLAPIENTRY
+fxMesaSwapBuffers(void)
+{
+ if (TDFX_DEBUG & VERBOSE_DRIVER) {
+ fprintf(stderr, "fxMesaSwapBuffers()\n");
+ }
+
+ if (fxMesaCurrentCtx) {
+ _mesa_notifySwapBuffers(fxMesaCurrentCtx->glCtx);
+
+ if (fxMesaCurrentCtx->haveDoubleBuffer) {
+
+ grBufferSwap(fxMesaCurrentCtx->swapInterval);
+
+#if 0
+ /*
+ * Don't allow swap buffer commands to build up!
+ */
+ while (FX_grGetInteger(GR_PENDING_BUFFERSWAPS) >
+ fxMesaCurrentCtx->maxPendingSwapBuffers)
+ /* The driver is able to sleep when waiting for the completation
+ of multiple swapbuffer operations instead of wasting
+ CPU time (NOTE: you must uncomment the following line in the
+ in order to enable this option) */
+ /* usleep(10000); */
+ ;
+#endif
+
+ fxMesaCurrentCtx->stats.swapBuffer++;
+ }
+ }
+}
+
+
+/*
+ * Shutdown Glide library
+ */
+void GLAPIENTRY
+fxCloseHardware(void)
+{
+ if (glbGlideInitialized) {
+ if (glbTotNumCtx == 0) {
+ grGlideShutdown();
+ glbGlideInitialized = 0;
+ }
+ }
+}
+
+
+#else
+
+
+/*
+ * Need this to provide at least one external definition.
+ */
+extern int gl_fx_dummy_function_api(void);
+int
+gl_fx_dummy_function_api(void)
+{
+ return 0;
+}
+
+#endif /* FX */
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-10 07:10:59 +0000