Add Intel i965G/Q DRI driver.

This driver comes from Tungsten Graphics, with a few further modifications by
Intel.

1 files changed, 169 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c
new file mode 100644
index 00000000000..2b171cb6513
--- /dev/null
+++ b/src/mesa/drivers/dri/i965/brw_context.c
@@ -0,0 +1,169 @@
+/*
+ Copyright (C) Intel Corp.  2006.  All Rights Reserved.
+ Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
+ develop this 3D driver.
+ 
+ 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 THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS 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:
+  *   Keith Whitwell <[email protected]>
+  */
+
+
+#include "brw_context.h"
+#include "brw_aub.h"
+#include "brw_defines.h"
+#include "brw_draw.h"
+#include "brw_exec.h"
+#include "brw_save.h"
+#include "brw_vs.h"
+#include "imports.h"
+#include "intel_tex.h"
+#include "intel_blit.h"
+#include "intel_batchbuffer.h"
+
+#include "utils.h"
+#include "api_noop.h"
+#include "vtxfmt.h"
+
+/***************************************
+ * Mesa's Driver Functions
+ ***************************************/
+
+static const struct dri_extension brw_extensions[] =
+{
+    { "GL_ARB_depth_texture",              NULL },
+    { "GL_ARB_fragment_program",           NULL },
+    { "GL_ARB_shadow",                     NULL },
+    { "GL_EXT_shadow_funcs",               NULL },
+    /* ARB extn won't work if not enabled */
+    { "GL_SGIX_depth_texture",             NULL },
+    { "GL_ARB_texture_env_crossbar",       NULL },
+    { NULL,                                NULL }
+};
+
+
+static void brwInitDriverFunctions( struct dd_function_table *functions )
+{
+   intelInitDriverFunctions( functions );
+   brwInitTextureFuncs( functions );
+   brwInitFragProgFuncs( functions );
+}
+
+
+static void brw_init_attribs( struct brw_context *brw )
+{
+   GLcontext *ctx = &brw->intel.ctx;
+
+   brw->attribs.Color = &ctx->Color;
+   brw->attribs.Depth = &ctx->Depth;
+   brw->attribs.Fog = &ctx->Fog;
+   brw->attribs.Hint = &ctx->Hint;
+   brw->attribs.Light = &ctx->Light;
+   brw->attribs.Line = &ctx->Line;
+   brw->attribs.Point = &ctx->Point;
+   brw->attribs.Polygon = &ctx->Polygon;
+   brw->attribs.Scissor = &ctx->Scissor;
+   brw->attribs.Stencil = &ctx->Stencil;
+   brw->attribs.Texture = &ctx->Texture;
+   brw->attribs.Transform = &ctx->Transform;
+   brw->attribs.Viewport = &ctx->Viewport;
+   brw->attribs.VertexProgram = &ctx->VertexProgram;
+   brw->attribs.FragmentProgram = &ctx->FragmentProgram;
+   brw->attribs.PolygonStipple = &ctx->PolygonStipple[0];
+}
+
+
+GLboolean brwCreateContext( const __GLcontextModes *mesaVis,
+			    __DRIcontextPrivate *driContextPriv,
+			    void *sharedContextPrivate)
+{
+   struct dd_function_table functions;
+   struct brw_context *brw = (struct brw_context *) CALLOC_STRUCT(brw_context);
+   struct intel_context *intel = &brw->intel;
+   GLcontext *ctx = &intel->ctx;
+
+   if (!brw) {
+      _mesa_printf("%s: failed to alloc context\n", __FUNCTION__);
+      return GL_FALSE;
+   }
+
+   brwInitVtbl( brw );
+   brwInitDriverFunctions( &functions );
+
+   if (!intelInitContext( intel, mesaVis, driContextPriv,
+			  sharedContextPrivate, &functions )) {
+      _mesa_printf("%s: failed to init intel context\n", __FUNCTION__);
+      FREE(brw);
+      return GL_FALSE;
+   }
+
+   ctx->Const.MaxTextureUnits = BRW_MAX_TEX_UNIT;
+   ctx->Const.MaxTextureImageUnits = BRW_MAX_TEX_UNIT;
+   ctx->Const.MaxTextureCoordUnits = BRW_MAX_TEX_UNIT;
+
+
+   /* Advertise the full hardware capabilities.  The new memory
+    * manager should cope much better with overload situations:
+    */
+   ctx->Const.MaxTextureLevels = 12;
+   ctx->Const.Max3DTextureLevels = 9;
+   ctx->Const.MaxCubeTextureLevels = 12;
+   ctx->Const.MaxTextureRectSize = (1<<11);
+   ctx->Const.MaxTextureUnits = BRW_MAX_TEX_UNIT;
+   
+/*    ctx->Const.MaxNativeVertexProgramTemps = 32; */
+
+
+   driInitExtensions( ctx, brw_extensions, GL_FALSE );
+
+   brw_aub_init( brw );
+   brw->intel.vtbl.aub_wrap = brw_aub_wrap;
+
+
+   brw_init_attribs( brw );
+   brw_init_metaops( brw );
+   brw_init_state( brw );
+
+   brw->state.dirty.mesa = ~0;
+   brw->state.dirty.brw = ~0;
+
+   memset(&brw->wm.bind, ~0, sizeof(brw->wm.bind));
+
+   brw->emit_state_always = 0;
+
+   ctx->_MaintainTexEnvProgram = 1;
+
+   brw_draw_init( brw );
+
+   brw_ProgramCacheInit( ctx );
+
+   /* Hook our functions into exec and compile dispatch tables.  Only
+    * fallback on out-of-memory situations.
+    */
+   brw_exec_init( ctx );
+   brw_save_init( ctx );
+
+   return GL_TRUE;
+}
+