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Diffstat (limited to 'src/mesa/drivers/dri/tdfx/tdfx_screen.c')
-rw-r--r--src/mesa/drivers/dri/tdfx/tdfx_screen.c331
1 files changed, 331 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/tdfx/tdfx_screen.c b/src/mesa/drivers/dri/tdfx/tdfx_screen.c
new file mode 100644
index 0000000000..480dc8064a
--- /dev/null
+++ b/src/mesa/drivers/dri/tdfx/tdfx_screen.c
@@ -0,0 +1,331 @@
+/* -*- mode: c; c-basic-offset: 3 -*-
+ *
+ * Copyright 2000 VA Linux Systems Inc., Fremont, California.
+ *
+ * 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 (including the next
+ * paragraph) 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
+ * VA LINUX SYSTEMS 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.
+ */
+/* $XFree86: xc/lib/GL/mesa/src/drv/tdfx/tdfx_screen.c,v 1.3 2002/02/22 21:45:03 dawes Exp $ */
+
+/*
+ * Original rewrite:
+ * Gareth Hughes <gareth@valinux.com>, 29 Sep - 1 Oct 2000
+ *
+ * Authors:
+ * Gareth Hughes <gareth@valinux.com>
+ *
+ */
+
+#include "tdfx_dri.h"
+#include "tdfx_context.h"
+#include "tdfx_lock.h"
+#include "tdfx_vb.h"
+#include "tdfx_tris.h"
+
+
+#ifdef DEBUG_LOCKING
+char *prevLockFile = 0;
+int prevLockLine = 0;
+#endif
+
+#ifndef TDFX_DEBUG
+int TDFX_DEBUG = (0
+/* | DEBUG_ALWAYS_SYNC */
+/* | DEBUG_VERBOSE_API */
+/* | DEBUG_VERBOSE_MSG */
+/* | DEBUG_VERBOSE_LRU */
+/* | DEBUG_VERBOSE_DRI */
+/* | DEBUG_VERBOSE_IOCTL */
+/* | DEBUG_VERBOSE_2D */
+ );
+#endif
+
+
+
+static GLboolean
+tdfxCreateScreen( __DRIscreenPrivate *sPriv )
+{
+ tdfxScreenPrivate *fxScreen;
+ TDFXDRIPtr fxDRIPriv = (TDFXDRIPtr) sPriv->pDevPriv;
+
+ /* Allocate the private area */
+ fxScreen = (tdfxScreenPrivate *) Xmalloc( sizeof(tdfxScreenPrivate) );
+ if ( !fxScreen )
+ return GL_FALSE;
+
+ fxScreen->driScrnPriv = sPriv;
+ sPriv->private = (void *) fxScreen;
+
+ fxScreen->regs.handle = fxDRIPriv->regs;
+ fxScreen->regs.size = fxDRIPriv->regsSize;
+ fxScreen->deviceID = fxDRIPriv->deviceID;
+ fxScreen->width = fxDRIPriv->width;
+ fxScreen->height = fxDRIPriv->height;
+ fxScreen->mem = fxDRIPriv->mem;
+ fxScreen->cpp = fxDRIPriv->cpp;
+ fxScreen->stride = fxDRIPriv->stride;
+ fxScreen->fifoOffset = fxDRIPriv->fifoOffset;
+ fxScreen->fifoSize = fxDRIPriv->fifoSize;
+ fxScreen->fbOffset = fxDRIPriv->fbOffset;
+ fxScreen->backOffset = fxDRIPriv->backOffset;
+ fxScreen->depthOffset = fxDRIPriv->depthOffset;
+ fxScreen->textureOffset = fxDRIPriv->textureOffset;
+ fxScreen->textureSize = fxDRIPriv->textureSize;
+ fxScreen->sarea_priv_offset = fxDRIPriv->sarea_priv_offset;
+
+ if ( drmMap( sPriv->fd, fxScreen->regs.handle,
+ fxScreen->regs.size, &fxScreen->regs.map ) ) {
+ return GL_FALSE;
+ }
+
+ return GL_TRUE;
+}
+
+
+static void
+tdfxDestroyScreen( __DRIscreenPrivate *sPriv )
+{
+ tdfxScreenPrivate *fxScreen = (tdfxScreenPrivate *) sPriv->private;
+
+ if ( fxScreen ) {
+ drmUnmap( fxScreen->regs.map, fxScreen->regs.size );
+
+ Xfree( fxScreen );
+ sPriv->private = NULL;
+ }
+}
+
+
+static GLboolean
+tdfxInitDriver( __DRIscreenPrivate *sPriv )
+{
+ if ( TDFX_DEBUG & DEBUG_VERBOSE_DRI ) {
+ fprintf( stderr, "%s( %p )\n", __FUNCTION__, sPriv );
+ }
+
+ /* Check the DRI externsion version */
+ if ( sPriv->driMajor != 4 || sPriv->driMinor < 0 ) {
+ __driUtilMessage( "tdfx DRI driver expected DRI version 4.0.x "
+ "but got version %d.%d.%d",
+ sPriv->driMajor, sPriv->driMinor, sPriv->driPatch );
+ return GL_FALSE;
+ }
+
+ /* Check that the DDX driver version is compatible */
+ if ( sPriv->ddxMajor != 1 ||
+ sPriv->ddxMinor < 0 ) {
+ __driUtilMessage(
+ "3dfx DRI driver expected DDX driver version 1.0.x "
+ "but got version %d.%d.%d",
+ sPriv->ddxMajor, sPriv->ddxMinor, sPriv->ddxPatch );
+ return GL_FALSE;
+ }
+
+ /* Check that the DRM driver version is compatible */
+ if ( sPriv->drmMajor != 1 ||
+ sPriv->drmMinor < 0 ) {
+ __driUtilMessage(
+ "3dfx DRI driver expected DRM driver version 1.0.x "
+ "but got version %d.%d.%d",
+ sPriv->drmMajor, sPriv->drmMinor, sPriv->drmPatch );
+ return GL_FALSE;
+ }
+
+ if ( !tdfxCreateScreen( sPriv ) ) {
+ tdfxDestroyScreen( sPriv );
+ return GL_FALSE;
+ }
+
+ return GL_TRUE;
+}
+
+
+static GLboolean
+tdfxCreateBuffer( __DRIscreenPrivate *driScrnPriv,
+ __DRIdrawablePrivate *driDrawPriv,
+ const __GLcontextModes *mesaVis,
+ GLboolean isPixmap )
+{
+ if (isPixmap) {
+ return GL_FALSE; /* not implemented */
+ }
+ else {
+ driDrawPriv->driverPrivate = (void *)
+ _mesa_create_framebuffer( mesaVis,
+ GL_FALSE, /* software depth buffer? */
+ mesaVis->stencilBits > 0,
+ mesaVis->accumRedBits > 0,
+ GL_FALSE /* software alpha channel? */ );
+ return (driDrawPriv->driverPrivate != NULL);
+ }
+}
+
+
+static void
+tdfxDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
+{
+ _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate));
+}
+
+
+static void
+tdfxSwapBuffers( __DRIdrawablePrivate *driDrawPriv )
+
+{
+ GET_CURRENT_CONTEXT(ctx);
+ tdfxContextPtr fxMesa = 0;
+ GLframebuffer *mesaBuffer;
+
+ if ( TDFX_DEBUG & DEBUG_VERBOSE_DRI ) {
+ fprintf( stderr, "%s( %p )\n", __FUNCTION__, driDrawPriv );
+ }
+
+ mesaBuffer = (GLframebuffer *) driDrawPriv->driverPrivate;
+ if ( !mesaBuffer->Visual.doubleBufferMode )
+ return; /* can't swap a single-buffered window */
+
+ /* If the current context's drawable matches the given drawable
+ * we have to do a glFinish (per the GLX spec).
+ */
+ if ( ctx ) {
+ __DRIdrawablePrivate *curDrawPriv;
+ fxMesa = TDFX_CONTEXT(ctx);
+ curDrawPriv = fxMesa->driContext->driDrawablePriv;
+
+ if ( curDrawPriv == driDrawPriv ) {
+ /* swapping window bound to current context, flush first */
+ _mesa_notifySwapBuffers( ctx );
+ LOCK_HARDWARE( fxMesa );
+ }
+ else {
+ /* find the fxMesa context previously bound to the window */
+ fxMesa = (tdfxContextPtr) driDrawPriv->driContextPriv->driverPrivate;
+ if (!fxMesa)
+ return;
+ LOCK_HARDWARE( fxMesa );
+ fxMesa->Glide.grSstSelect( fxMesa->Glide.Board );
+ printf("SwapBuf SetState 1\n");
+ fxMesa->Glide.grGlideSetState(fxMesa->Glide.State );
+ }
+ }
+
+#ifdef STATS
+ {
+ int stalls;
+ static int prevStalls = 0;
+
+ stalls = fxMesa->Glide.grFifoGetStalls();
+
+ fprintf( stderr, "%s:\n", __FUNCTION__ );
+ if ( stalls != prevStalls ) {
+ fprintf( stderr, " %d stalls occurred\n",
+ stalls - prevStalls );
+ prevStalls = stalls;
+ }
+ if ( fxMesa && fxMesa->texSwaps ) {
+ fprintf( stderr, " %d texture swaps occurred\n",
+ fxMesa->texSwaps );
+ fxMesa->texSwaps = 0;
+ }
+ }
+#endif
+
+ if (fxMesa->scissoredClipRects) {
+ /* restore clip rects without scissor box */
+ fxMesa->Glide.grDRIPosition( driDrawPriv->x, driDrawPriv->y,
+ driDrawPriv->w, driDrawPriv->h,
+ driDrawPriv->numClipRects,
+ driDrawPriv->pClipRects );
+ }
+
+ fxMesa->Glide.grDRIBufferSwap( fxMesa->Glide.SwapInterval );
+
+ if (fxMesa->scissoredClipRects) {
+ /* restore clip rects WITH scissor box */
+ fxMesa->Glide.grDRIPosition( driDrawPriv->x, driDrawPriv->y,
+ driDrawPriv->w, driDrawPriv->h,
+ fxMesa->numClipRects, fxMesa->pClipRects );
+ }
+
+
+#if 0
+ {
+ FxI32 result;
+ do {
+ FxI32 result;
+ fxMesa->Glide.grGet(GR_PENDING_BUFFERSWAPS, 4, &result);
+ } while ( result > fxMesa->maxPendingSwapBuffers );
+ }
+#endif
+
+ fxMesa->stats.swapBuffer++;
+
+ if (ctx) {
+ if (ctx->DriverCtx != fxMesa) {
+ fxMesa = TDFX_CONTEXT(ctx);
+ fxMesa->Glide.grSstSelect( fxMesa->Glide.Board );
+ printf("SwapBuf SetState 2\n");
+ fxMesa->Glide.grGlideSetState(fxMesa->Glide.State );
+ }
+ UNLOCK_HARDWARE( fxMesa );
+ }
+}
+
+
+static GLboolean
+tdfxOpenCloseFullScreen(__DRIcontextPrivate *driContextPriv)
+{
+ return GL_TRUE;
+}
+
+
+static const struct __DriverAPIRec tdfxAPI = {
+ .InitDriver = tdfxInitDriver,
+ .DestroyScreen = tdfxDestroyScreen,
+ .CreateContext = tdfxCreateContext,
+ .DestroyContext = tdfxDestroyContext,
+ .CreateBuffer = tdfxCreateBuffer,
+ .DestroyBuffer = tdfxDestroyBuffer,
+ .SwapBuffers = tdfxSwapBuffers,
+ .MakeCurrent = tdfxMakeCurrent,
+ .UnbindContext = tdfxUnbindContext,
+ .OpenFullScreen = tdfxOpenCloseFullScreen,
+ .CloseFullScreen = tdfxOpenCloseFullScreen,
+ .GetSwapInfo = NULL,
+ .GetMSC = NULL,
+ .WaitForMSC = NULL,
+ .WaitForSBC = NULL,
+ .SwapBuffersMSC = NULL
+};
+
+
+/*
+ * This is the bootstrap function for the driver.
+ * The __driCreateScreen name is the symbol that libGL.so fetches.
+ * Return: pointer to a __DRIscreenPrivate.
+ */
+void *__driCreateScreen(Display *dpy, int scrn, __DRIscreen *psc,
+ int numConfigs, __GLXvisualConfig *config)
+{
+ __DRIscreenPrivate *psp;
+ psp = __driUtilCreateScreen(dpy, scrn, psc, numConfigs, config, &tdfxAPI);
+ return (void *) psp;
+}
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