Initial mach64 driver import for DRI mach64-0-0-6 branch,

this compiles but I doubt it works but it is a better starting point
than the branch

1 files changed, 327 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/mach64/mach64_context.c b/src/mesa/drivers/dri/mach64/mach64_context.c
new file mode 100644
index 00000000000..4ebca8774af
--- /dev/null
+++ b/src/mesa/drivers/dri/mach64/mach64_context.c
@@ -0,0 +1,327 @@
+/* $XFree86$ */ /* -*- mode: c; c-basic-offset: 3 -*- */
+/*
+ * Copyright 2000 Gareth Hughes
+ * 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
+ * GARETH HUGHES 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:
+ *	Gareth Hughes <[email protected]>
+ *	Leif Delgass <[email protected]>
+ *	Jos� Fonseca <[email protected]>
+ */
+
+#include "glheader.h"
+#include "context.h"
+#include "simple_list.h"
+#include "imports.h"
+#include "matrix.h"
+#include "extensions.h"
+
+#include "swrast/swrast.h"
+#include "swrast_setup/swrast_setup.h"
+#include "array_cache/acache.h"
+
+#include "tnl/tnl.h"
+#include "tnl/t_pipeline.h"
+
+#include "drivers/common/driverfuncs.h"
+
+#include "mach64_context.h"
+#include "mach64_ioctl.h"
+#include "mach64_dd.h"
+#include "mach64_span.h"
+#include "mach64_state.h"
+#include "mach64_tex.h"
+#include "mach64_tris.h"
+#include "mach64_vb.h"
+
+#include "utils.h"
+#include "vblank.h"
+
+#ifndef MACH64_DEBUG
+int MACH64_DEBUG = (0);
+#endif
+
+static const struct dri_debug_control debug_control[] =
+{
+    { "sync",   DEBUG_ALWAYS_SYNC },
+    { "api",    DEBUG_VERBOSE_API },
+    { "msg",    DEBUG_VERBOSE_MSG },
+    { "lru",    DEBUG_VERBOSE_LRU },
+    { "dri",    DEBUG_VERBOSE_DRI },
+    { "ioctl",  DEBUG_VERBOSE_IOCTL },
+    { "prims",  DEBUG_VERBOSE_PRIMS },
+    { "count",  DEBUG_VERBOSE_COUNT },
+    { "nowait", DEBUG_NOWAIT },
+    { NULL,    0 }
+};
+
+static const char * const card_extensions[] =
+{
+   "GL_ARB_multitexture",
+   "GL_EXT_texture_edge_clamp",
+   "GL_MESA_ycbcr_texture",
+   "GL_SGIS_generate_mipmap",
+   "GL_SGIS_texture_edge_clamp",
+   NULL
+};
+
+
+/* Create the device specific context.
+  */
+GLboolean mach64CreateContext( const __GLcontextModes *glVisual,
+			       __DRIcontextPrivate *driContextPriv,
+                               void *sharedContextPrivate )
+{
+   GLcontext *ctx, *shareCtx;
+   __DRIscreenPrivate *driScreen = driContextPriv->driScreenPriv;
+   struct dd_function_table functions;
+   mach64ContextPtr mmesa;
+   mach64ScreenPtr mach64Screen;
+   int i, heap;
+
+#if DO_DEBUG
+   MACH64_DEBUG = driParseDebugString(getenv("MACH64_DEBUG"), debug_control);
+#endif
+
+   /* Allocate the mach64 context */
+   mmesa = (mach64ContextPtr) CALLOC( sizeof(*mmesa) );
+   if ( !mmesa ) 
+      return GL_FALSE;
+
+   /* Init default driver functions then plug in our Mach64-specific functions
+    * (the texture functions are especially important)
+    */
+   _mesa_init_driver_functions( &functions );
+   mach64InitDriverFuncs( &functions );
+   mach64InitIoctlFuncs( &functions );
+   mach64InitTextureFuncs( &functions );
+
+   /* Allocate the Mesa context */
+   if (sharedContextPrivate)
+      shareCtx = ((mach64ContextPtr) sharedContextPrivate)->glCtx;
+   else 
+      shareCtx = NULL;
+   mmesa->glCtx = _mesa_create_context(glVisual, shareCtx, 
+					&functions, (void *)mmesa);
+   if (!mmesa->glCtx) {
+      FREE(mmesa);
+      return GL_FALSE;
+   }
+   driContextPriv->driverPrivate = mmesa;
+   ctx = mmesa->glCtx;
+
+   mmesa->driContext = driContextPriv;
+   mmesa->driScreen = driScreen;
+   mmesa->driDrawable = NULL;
+   mmesa->hHWContext = driContextPriv->hHWContext;
+   mmesa->driHwLock = &driScreen->pSAREA->lock;
+   mmesa->driFd = driScreen->fd;
+
+   mach64Screen = mmesa->mach64Screen = (mach64ScreenPtr)driScreen->private;
+
+   mmesa->sarea = (ATISAREAPrivPtr)((char *)driScreen->pSAREA +
+				    sizeof(XF86DRISAREARec));
+
+   mmesa->CurrentTexObj[0] = NULL;
+   mmesa->CurrentTexObj[1] = NULL;
+
+   make_empty_list( &mmesa->SwappedOut );
+
+   mmesa->firstTexHeap = mach64Screen->firstTexHeap;
+   mmesa->lastTexHeap = mach64Screen->firstTexHeap + mach64Screen->numTexHeaps;
+
+   for ( i = mmesa->firstTexHeap ; i < mmesa->lastTexHeap ; i++ ) {
+      make_empty_list( &mmesa->TexObjList[i] );
+      mmesa->texHeap[i] = mmInit( 0, mach64Screen->texSize[i] );
+      mmesa->lastTexAge[i] = -1;
+   }
+
+   mmesa->RenderIndex = -1;		/* Impossible value */
+   mmesa->vert_buf = NULL;
+   mmesa->num_verts = 0;
+   mmesa->new_state = MACH64_NEW_ALL;
+   mmesa->dirty = MACH64_UPLOAD_ALL;
+
+   /* Set the maximum texture size small enough that we can
+    * guarentee that both texture units can bind a maximal texture
+    * and have them both in memory (on-card or AGP) at once.
+    * Test for 2 textures * bytes/texel * size * size.  There's no
+    * need to account for mipmaps since we only upload one level.
+    */
+   heap = mach64Screen->IsPCI ? MACH64_CARD_HEAP : MACH64_AGP_HEAP;
+
+   if ( mach64Screen->texSize[heap] >= 2 * mach64Screen->cpp * 1024*1024 ) {
+      ctx->Const.MaxTextureLevels = 11; /* 1024x1024 */
+   } else if ( mach64Screen->texSize[heap] >= 2 * mach64Screen->cpp * 512*512 ) {
+      ctx->Const.MaxTextureLevels = 10; /* 512x512 */
+   } else {
+      ctx->Const.MaxTextureLevels = 9;  /* 256x256 */
+   }
+
+   ctx->Const.MaxTextureUnits = 2;
+
+#if ENABLE_PERF_BOXES
+   mmesa->boxes = ( getenv( "LIBGL_PERFORMANCE_BOXES" ) != NULL );
+#endif
+
+   /* Allocate the vertex buffer
+    */
+   mmesa->vert_buf = ALIGN_MALLOC(MACH64_BUFFER_SIZE, 32);
+   if ( !mmesa->vert_buf )
+      return GL_FALSE;
+   mmesa->vert_used = 0;
+   mmesa->vert_total = MACH64_BUFFER_SIZE;
+   
+   /* Initialize the software rasterizer and helper modules.
+    */
+   _swrast_CreateContext( ctx );
+   _ac_CreateContext( ctx );
+   _tnl_CreateContext( ctx );
+   _swsetup_CreateContext( ctx );
+
+   /* Install the customized pipeline:
+    */
+/*     _tnl_destroy_pipeline( ctx ); */
+/*     _tnl_install_pipeline( ctx, mach64_pipeline ); */
+
+   /* Configure swrast to match hardware characteristics:
+    */
+   _swrast_allow_pixel_fog( ctx, GL_FALSE );
+   _swrast_allow_vertex_fog( ctx, GL_TRUE );
+
+   driInitExtensions( ctx, card_extensions, GL_TRUE );
+   mach64InitVB( ctx );
+   mach64InitTriFuncs( ctx );
+   mach64DDInitDriverFuncs( ctx );
+   mach64DDInitIoctlFuncs( ctx );
+   mach64DDInitStateFuncs( ctx );
+   mach64DDInitSpanFuncs( ctx );
+   mach64DDInitTextureFuncs( ctx );
+   mach64DDInitState( mmesa );
+
+   mmesa->do_irqs = (mmesa->mach64Screen->irq && !getenv("MACH64_NO_IRQS"));
+
+   mmesa->vblank_flags = (mmesa->do_irqs)
+      ? driGetDefaultVBlankFlags(&mmesa->optionCache) : VBLANK_FLAG_NO_IRQ;
+
+   driContextPriv->driverPrivate = (void *)mmesa;
+
+   return GL_TRUE;
+}
+
+/* Destroy the device specific context.
+ */
+void mach64DestroyContext( __DRIcontextPrivate *driContextPriv  )
+{
+   mach64ContextPtr mmesa = (mach64ContextPtr) driContextPriv->driverPrivate;
+
+   assert(mmesa);  /* should never be null */
+   if ( mmesa ) {
+      if (mmesa->glCtx->Shared->RefCount == 1) {
+         /* This share group is about to go away, free our private
+          * texture object data.
+          */
+         mach64TexObjPtr t, next_t;
+         int i;
+
+         for ( i = mmesa->firstTexHeap ; i < mmesa->lastTexHeap ; i++ ) {
+            foreach_s ( t, next_t, &mmesa->TexObjList[i] ) {
+               mach64DestroyTexObj( mmesa, t );
+            }
+            mmDestroy( mmesa->texHeap[i] );
+            mmesa->texHeap[i] = NULL;
+         }
+
+         foreach_s ( t, next_t, &mmesa->SwappedOut ) {
+            mach64DestroyTexObj( mmesa, t );
+         }
+      }
+
+      _swsetup_DestroyContext( mmesa->glCtx );
+      _tnl_DestroyContext( mmesa->glCtx );
+      _ac_DestroyContext( mmesa->glCtx );
+      _swrast_DestroyContext( mmesa->glCtx );
+
+      mach64FreeVB( mmesa->glCtx );
+
+      /* Free the vertex buffer */
+      if ( mmesa->vert_buf )
+	 ALIGN_FREE( mmesa->vert_buf );
+      
+      /* free the Mesa context */
+      mmesa->glCtx->DriverCtx = NULL;
+      _mesa_destroy_context(mmesa->glCtx);
+
+      FREE( mmesa );
+   }
+}
+
+/* Force the context `c' to be the current context and associate with it
+ * buffer `b'.
+ */
+GLboolean
+mach64MakeCurrent( __DRIcontextPrivate *driContextPriv,
+                 __DRIdrawablePrivate *driDrawPriv,
+                 __DRIdrawablePrivate *driReadPriv )
+{
+   if ( driContextPriv ) {
+      GET_CURRENT_CONTEXT(ctx);
+      mach64ContextPtr oldMach64Ctx = ctx ? MACH64_CONTEXT(ctx) : NULL;
+      mach64ContextPtr newMach64Ctx = (mach64ContextPtr) driContextPriv->driverPrivate;
+
+      if ( newMach64Ctx != oldMach64Ctx ) {
+	 newMach64Ctx->new_state |= MACH64_NEW_CONTEXT;
+	 newMach64Ctx->dirty = MACH64_UPLOAD_ALL;
+      }
+
+      if ( newMach64Ctx->driDrawable != driDrawPriv ) {
+	 newMach64Ctx->driDrawable = driDrawPriv;
+	 mach64CalcViewport( newMach64Ctx->glCtx );
+      }
+
+      _mesa_make_current2( newMach64Ctx->glCtx,
+                           (GLframebuffer *) driDrawPriv->driverPrivate,
+                           (GLframebuffer *) driReadPriv->driverPrivate );
+
+
+      newMach64Ctx->new_state |=  MACH64_NEW_CLIP;
+
+      if ( !newMach64Ctx->glCtx->Viewport.Width ) {
+	 _mesa_set_viewport(newMach64Ctx->glCtx, 0, 0,
+                            driDrawPriv->w, driDrawPriv->h);
+      }
+   } else {
+      _mesa_make_current( 0, 0 );
+   }
+
+   return GL_TRUE;
+}
+
+
+/* Force the context `c' to be unbound from its buffer.
+ */
+GLboolean
+mach64UnbindContext( __DRIcontextPrivate *driContextPriv )
+{
+   return GL_TRUE;
+}