Merge branch 'i965g-restart'

Conflicts:
	configure.ac

1 files changed, 853 insertions, 0 deletions

diff --git a/src/gallium/drivers/i965/brw_context.h b/src/gallium/drivers/i965/brw_context.h
new file mode 100644
index 00000000000..56e78074000
--- /dev/null
+++ b/src/gallium/drivers/i965/brw_context.h
@@ -0,0 +1,853 @@
+/*
+ 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]>
+  */
+
+
+#ifndef BRWCONTEXT_INC
+#define BRWCONTEXT_INC
+
+#include "brw_structs.h"
+#include "brw_winsys.h"
+#include "brw_reg.h"
+#include "pipe/p_state.h"
+#include "pipe/p_context.h"
+#include "tgsi/tgsi_scan.h"
+
+
+/* Glossary:
+ *
+ * URB - uniform resource buffer.  A mid-sized buffer which is
+ * partitioned between the fixed function units and used for passing
+ * values (vertices, primitives, constants) between them.
+ *
+ * CURBE - constant URB entry.  An urb region (entry) used to hold
+ * constant values which the fixed function units can be instructed to
+ * preload into the GRF when spawning a thread.
+ *
+ * VUE - vertex URB entry.  An urb entry holding a vertex and usually
+ * a vertex header.  The header contains control information and
+ * things like primitive type, Begin/end flags and clip codes.  
+ *
+ * PUE - primitive URB entry.  An urb entry produced by the setup (SF)
+ * unit holding rasterization and interpolation parameters.
+ *
+ * GRF - general register file.  One of several register files
+ * addressable by programmed threads.  The inputs (r0, payload, curbe,
+ * urb) of the thread are preloaded to this area before the thread is
+ * spawned.  The registers are individually 8 dwords wide and suitable
+ * for general usage.  Registers holding thread input values are not
+ * special and may be overwritten.
+ *
+ * MRF - message register file.  Threads communicate (and terminate)
+ * by sending messages.  Message parameters are placed in contiguous
+ * MRF registers.  All program output is via these messages.  URB
+ * entries are populated by sending a message to the shared URB
+ * function containing the new data, together with a control word,
+ * often an unmodified copy of R0.
+ *
+ * R0 - GRF register 0.  Typically holds control information used when
+ * sending messages to other threads.
+ *
+ * EU or GEN4 EU: The name of the programmable subsystem of the
+ * i965 hardware.  Threads are executed by the EU, the registers
+ * described above are part of the EU architecture.
+ *
+ * Fixed function units:
+ *
+ * CS - Command streamer.  Notional first unit, little software
+ * interaction.  Holds the URB entries used for constant data, ie the
+ * CURBEs.
+ *
+ * VF/VS - Vertex Fetch / Vertex Shader.  The fixed function part of
+ * this unit is responsible for pulling vertices out of vertex buffers
+ * in vram and injecting them into the processing pipe as VUEs.  If
+ * enabled, it first passes them to a VS thread which is a good place
+ * for the driver to implement any active vertex shader.
+ *
+ * GS - Geometry Shader.  This corresponds to a new DX10 concept.  If
+ * enabled, incoming strips etc are passed to GS threads in individual
+ * line/triangle/point units.  The GS thread may perform arbitary
+ * computation and emit whatever primtives with whatever vertices it
+ * chooses.  This makes GS an excellent place to implement GL's
+ * unfilled polygon modes, though of course it is capable of much
+ * more.  Additionally, GS is used to translate away primitives not
+ * handled by latter units, including Quads and Lineloops.
+ *
+ * CS - Clipper.  Mesa's clipping algorithms are imported to run on
+ * this unit.  The fixed function part performs cliptesting against
+ * the 6 fixed clipplanes and makes decisions on whether or not the
+ * incoming primitive needs to be passed to a thread for clipping.
+ * User clip planes are handled via cooperation with the VS thread.
+ *
+ * SF - Strips Fans or Setup: Triangles are prepared for
+ * rasterization.  Interpolation coefficients are calculated.
+ * Flatshading and two-side lighting usually performed here.
+ *
+ * WM - Windower.  Interpolation of vertex attributes performed here.
+ * Fragment shader implemented here.  SIMD aspects of EU taken full
+ * advantage of, as pixels are processed in blocks of 16.
+ *
+ * CC - Color Calculator.  No EU threads associated with this unit.
+ * Handles blending and (presumably) depth and stencil testing.
+ */
+
+#define BRW_MAX_CURBE                    (32*16)
+
+struct brw_context;
+
+struct brw_depth_stencil_state {
+   /* Precalculated hardware state:
+    */
+   struct brw_cc0 cc0;
+   struct brw_cc1 cc1;
+   struct brw_cc2 cc2;
+   struct brw_cc3 cc3;
+   struct brw_cc7 cc7;
+
+   unsigned iz_lookup;
+};
+
+
+struct brw_blend_state {
+   /* Precalculated hardware state:
+    */
+   struct brw_cc2 cc2;
+   struct brw_cc3 cc3;
+   struct brw_cc5 cc5;
+   struct brw_cc6 cc6;
+
+   struct brw_surf_ss0 ss0;
+};
+
+
+struct brw_rasterizer_state;
+
+struct brw_immediate_data {
+   unsigned nr;
+   float (*data)[4];
+};
+
+struct brw_vertex_shader {
+   const struct tgsi_token *tokens;
+   struct brw_winsys_buffer *const_buffer;    /** Program constant buffer/surface */
+
+   struct tgsi_shader_info info;
+   struct brw_immediate_data immediates;
+
+   GLuint has_flow_control:1;
+   GLuint use_const_buffer:1;
+
+   /* Offsets of special vertex shader outputs required for clipping.
+    */
+   GLuint output_hpos:6;        /* not always zero? */
+   GLuint output_color0:6;
+   GLuint output_color1:6;
+   GLuint output_bfc0:6;
+   GLuint output_bfc1:6;
+   GLuint output_edgeflag:6;
+
+   unsigned id;
+};
+
+struct brw_fs_signature {
+   GLuint nr_inputs;
+   struct {
+      GLuint interp:3;          /* TGSI_INTERPOLATE_x */
+      GLuint semantic:5;        /* TGSI_SEMANTIC_x */
+      GLuint semantic_index:24;
+   } input[PIPE_MAX_SHADER_INPUTS];
+};
+
+#define brw_fs_signature_size(s) (offsetof(struct brw_fs_signature, input) + \
+                                  ((s)->nr_inputs * sizeof (s)->input[0])) 
+
+
+struct brw_fragment_shader {
+   const struct tgsi_token *tokens;
+   struct tgsi_shader_info info;
+
+   struct brw_fs_signature signature;
+   struct brw_immediate_data immediates;
+
+   unsigned iz_lookup;
+   /*unsigned wm_lookup;*/
+   
+   unsigned  uses_depth:1;
+   unsigned  has_flow_control:1;
+
+   unsigned id;
+   struct brw_winsys_buffer *const_buffer;    /** Program constant buffer/surface */
+   GLboolean use_const_buffer;
+};
+
+
+struct brw_sampler {
+   struct brw_ss0 ss0;
+   struct brw_ss1 ss1;
+   float border_color[4];
+   struct brw_ss3 ss3;
+};
+
+
+
+#define PIPE_NEW_DEPTH_STENCIL_ALPHA    0x1
+#define PIPE_NEW_RAST                   0x2
+#define PIPE_NEW_BLEND                  0x4
+#define PIPE_NEW_VIEWPORT               0x8
+#define PIPE_NEW_SAMPLERS               0x10
+#define PIPE_NEW_VERTEX_BUFFER          0x20
+#define PIPE_NEW_VERTEX_ELEMENT         0x40
+#define PIPE_NEW_FRAGMENT_SHADER        0x80
+#define PIPE_NEW_VERTEX_SHADER          0x100
+#define PIPE_NEW_FRAGMENT_CONSTANTS     0x200
+#define PIPE_NEW_VERTEX_CONSTANTS       0x400
+#define PIPE_NEW_CLIP                   0x800
+#define PIPE_NEW_INDEX_BUFFER           0x1000
+#define PIPE_NEW_INDEX_RANGE            0x2000
+#define PIPE_NEW_BLEND_COLOR            0x4000
+#define PIPE_NEW_POLYGON_STIPPLE        0x8000
+#define PIPE_NEW_FRAMEBUFFER_DIMENSIONS 0x10000
+#define PIPE_NEW_DEPTH_BUFFER           0x20000
+#define PIPE_NEW_COLOR_BUFFERS          0x40000
+#define PIPE_NEW_QUERY                  0x80000
+#define PIPE_NEW_SCISSOR                0x100000
+#define PIPE_NEW_BOUND_TEXTURES         0x200000
+#define PIPE_NEW_NR_CBUFS               0x400000
+#define PIPE_NEW_FRAGMENT_SIGNATURE     0x800000
+
+
+
+#define BRW_NEW_URB_FENCE               0x1
+#define BRW_NEW_FRAGMENT_PROGRAM        0x2
+#define BRW_NEW_VERTEX_PROGRAM          0x4
+#define BRW_NEW_INPUT_DIMENSIONS        0x8
+#define BRW_NEW_CURBE_OFFSETS           0x10
+#define BRW_NEW_REDUCED_PRIMITIVE       0x20
+#define BRW_NEW_PRIMITIVE               0x40
+#define BRW_NEW_CONTEXT                 0x80
+#define BRW_NEW_WM_INPUT_DIMENSIONS     0x100
+#define BRW_NEW_PSP                     0x800
+#define BRW_NEW_WM_SURFACES		0x1000
+#define BRW_NEW_xxx                     0x2000 /* was FENCE */
+#define BRW_NEW_INDICES			0x4000
+
+/**
+ * Used for any batch entry with a relocated pointer that will be used
+ * by any 3D rendering.  Need to re-emit these fresh in each
+ * batchbuffer as the referenced buffers may be relocated in the
+ * meantime.
+ */
+#define BRW_NEW_BATCH			0x10000
+#define BRW_NEW_NR_WM_SURFACES		0x40000
+#define BRW_NEW_NR_VS_SURFACES		0x80000
+#define BRW_NEW_INDEX_BUFFER		0x100000
+
+struct brw_state_flags {
+   /** State update flags signalled by mesa internals */
+   GLuint mesa;
+   /**
+    * State update flags signalled as the result of brw_tracked_state updates
+    */
+   GLuint brw;
+   /** State update flags signalled by brw_state_cache.c searches */
+   GLuint cache;
+};
+
+
+
+/* Data about a particular attempt to compile a program.  Note that
+ * there can be many of these, each in a different GL state
+ * corresponding to a different brw_wm_prog_key struct, with different
+ * compiled programs:
+ */
+struct brw_wm_prog_data {
+   GLuint curb_read_length;
+   GLuint urb_read_length;
+
+   GLuint first_curbe_grf;
+   GLuint total_grf;
+   GLuint total_scratch;
+
+   GLuint nr_params;       /**< number of float params/constants */
+   GLboolean error;
+
+   /* Pointer to tracked values (only valid once
+    * _mesa_load_state_parameters has been called at runtime).
+    */
+   const GLfloat *param[BRW_MAX_CURBE];
+};
+
+struct brw_sf_prog_data {
+   GLuint urb_read_length;
+   GLuint total_grf;
+
+   /* Each vertex may have upto 12 attributes, 4 components each,
+    * except WPOS which requires only 2.  (11*4 + 2) == 44 ==> 11
+    * rows.
+    *
+    * Actually we use 4 for each, so call it 12 rows.
+    */
+   GLuint urb_entry_size;
+};
+
+
+struct brw_clip_prog_data;
+
+struct brw_gs_prog_data {
+   GLuint urb_read_length;
+   GLuint total_grf;
+};
+
+struct brw_vs_prog_data {
+   GLuint curb_read_length;
+   GLuint urb_read_length;
+   GLuint total_grf;
+
+   GLuint nr_outputs;
+   GLuint nr_inputs;
+
+   GLuint nr_params;       /**< number of TGSI_FILE_CONSTANT's */
+
+   GLuint output_edgeflag;
+
+   GLboolean writes_psiz;
+
+   /* Used for calculating urb partitions:
+    */
+   GLuint urb_entry_size;
+};
+
+
+/* Size == 0 if output either not written, or always [0,0,0,1]
+ */
+struct brw_vs_ouput_sizes {
+   GLubyte output_size[PIPE_MAX_SHADER_OUTPUTS];
+};
+
+
+/** Number of texture sampler units */
+#define BRW_MAX_TEX_UNIT 16
+
+/** Max number of render targets in a shader */
+#define BRW_MAX_DRAW_BUFFERS 4
+
+/**
+ * Size of our surface binding table for the WM.
+ * This contains pointers to the drawing surfaces and current texture
+ * objects and shader constant buffers (+2).
+ */
+#define BRW_WM_MAX_SURF (BRW_MAX_DRAW_BUFFERS + BRW_MAX_TEX_UNIT + 1)
+
+/**
+ * Helpers to convert drawing buffers, textures and constant buffers
+ * to surface binding table indexes, for WM.
+ */
+#define BTI_COLOR_BUF(d)          (d)
+#define BTI_FRAGMENT_CONSTANTS    (BRW_MAX_DRAW_BUFFERS) 
+#define BTI_TEXTURE(t)            (BRW_MAX_DRAW_BUFFERS + 1 + (t))
+
+/**
+ * Size of surface binding table for the VS.
+ * Only one constant buffer for now.
+ */
+#define BRW_VS_MAX_SURF 1
+
+/**
+ * Only a VS constant buffer
+ */
+#define SURF_INDEX_VERT_CONST_BUFFER 0
+
+
+/* Bit of a hack to align these with the winsys buffer_data_type enum.
+ */
+enum brw_cache_id {
+   BRW_CC_VP         = BRW_DATA_GS_CC_VP,
+   BRW_CC_UNIT       = BRW_DATA_GS_CC_UNIT,
+   BRW_WM_PROG       = BRW_DATA_GS_WM_PROG,
+   BRW_SAMPLER_DEFAULT_COLOR    = BRW_DATA_GS_SAMPLER_DEFAULT_COLOR,
+   BRW_SAMPLER       = BRW_DATA_GS_SAMPLER,
+   BRW_WM_UNIT       = BRW_DATA_GS_WM_UNIT,
+   BRW_SF_PROG       = BRW_DATA_GS_SF_PROG,
+   BRW_SF_VP         = BRW_DATA_GS_SF_VP,
+   BRW_SF_UNIT       = BRW_DATA_GS_SF_UNIT,
+   BRW_VS_UNIT       = BRW_DATA_GS_VS_UNIT,
+   BRW_VS_PROG       = BRW_DATA_GS_VS_PROG,
+   BRW_GS_UNIT       = BRW_DATA_GS_GS_UNIT,
+   BRW_GS_PROG       = BRW_DATA_GS_GS_PROG,
+   BRW_CLIP_VP       = BRW_DATA_GS_CLIP_VP,
+   BRW_CLIP_UNIT     = BRW_DATA_GS_CLIP_UNIT,
+   BRW_CLIP_PROG     = BRW_DATA_GS_CLIP_PROG,
+   BRW_SS_SURFACE    = BRW_DATA_SS_SURFACE,
+   BRW_SS_SURF_BIND  = BRW_DATA_SS_SURF_BIND,
+
+   BRW_MAX_CACHE
+};
+
+struct brw_cache_item {
+   /**
+    * Effectively part of the key, cache_id identifies what kind of state
+    * buffer is involved, and also which brw->state.dirty.cache flag should
+    * be set when this cache item is chosen.
+    */
+   enum brw_cache_id cache_id;
+   /** 32-bit hash of the key data */
+   GLuint hash;
+   GLuint key_size;		/* for variable-sized keys */
+   const void *key;
+   struct brw_winsys_reloc *relocs;
+   GLuint nr_relocs;
+
+   struct brw_winsys_buffer *bo;
+   GLuint data_size;
+
+   struct brw_cache_item *next;
+};   
+
+
+
+struct brw_cache {
+   struct brw_context *brw;
+   struct brw_winsys_screen *sws;
+
+   struct brw_cache_item **items;
+   GLuint size, n_items;
+
+   enum brw_buffer_type buffer_type;
+
+   GLuint key_size[BRW_MAX_CACHE];		/* for fixed-size keys */
+   GLuint aux_size[BRW_MAX_CACHE];
+   char *name[BRW_MAX_CACHE];
+   
+
+   /* Record of the last BOs chosen for each cache_id.  Used to set
+    * brw->state.dirty.cache when a new cache item is chosen.
+    */
+   struct brw_winsys_buffer *last_bo[BRW_MAX_CACHE];
+};
+
+
+struct brw_tracked_state {
+   struct brw_state_flags dirty;
+   int (*prepare)( struct brw_context *brw );
+   int (*emit)( struct brw_context *brw );
+};
+
+/* Flags for brw->state.cache.
+ */
+#define CACHE_NEW_CC_VP                  (1<<BRW_CC_VP)
+#define CACHE_NEW_CC_UNIT                (1<<BRW_CC_UNIT)
+#define CACHE_NEW_WM_PROG                (1<<BRW_WM_PROG)
+#define CACHE_NEW_SAMPLER_DEFAULT_COLOR  (1<<BRW_SAMPLER_DEFAULT_COLOR)
+#define CACHE_NEW_SAMPLER                (1<<BRW_SAMPLER)
+#define CACHE_NEW_WM_UNIT                (1<<BRW_WM_UNIT)
+#define CACHE_NEW_SF_PROG                (1<<BRW_SF_PROG)
+#define CACHE_NEW_SF_VP                  (1<<BRW_SF_VP)
+#define CACHE_NEW_SF_UNIT                (1<<BRW_SF_UNIT)
+#define CACHE_NEW_VS_UNIT                (1<<BRW_VS_UNIT)
+#define CACHE_NEW_VS_PROG                (1<<BRW_VS_PROG)
+#define CACHE_NEW_GS_UNIT                (1<<BRW_GS_UNIT)
+#define CACHE_NEW_GS_PROG                (1<<BRW_GS_PROG)
+#define CACHE_NEW_CLIP_VP                (1<<BRW_CLIP_VP)
+#define CACHE_NEW_CLIP_UNIT              (1<<BRW_CLIP_UNIT)
+#define CACHE_NEW_CLIP_PROG              (1<<BRW_CLIP_PROG)
+#define CACHE_NEW_SURFACE                (1<<BRW_SS_SURFACE)
+#define CACHE_NEW_SURF_BIND              (1<<BRW_SS_SURF_BIND)
+
+struct brw_cached_batch_item {
+   struct header *header;
+   GLuint sz;
+   struct brw_cached_batch_item *next;
+};
+   
+
+
+/* Protect against a future where VERT_ATTRIB_MAX > 32.  Wouldn't life
+ * be easier if C allowed arrays of packed elements?
+ */
+#define VS_INPUT_BITMASK_DWORDS  ((PIPE_MAX_SHADER_INPUTS+31)/32)
+
+
+
+
+struct brw_vertex_info {
+   GLuint sizes[VS_INPUT_BITMASK_DWORDS * 2]; /* sizes:2[VERT_ATTRIB_MAX] */
+};
+
+
+struct brw_query_object {
+   /** Doubly linked list of active query objects in the context. */
+   struct brw_query_object *prev, *next;
+
+   /** Last query BO associated with this query. */
+   struct brw_winsys_buffer *bo;
+   /** First index in bo with query data for this object. */
+   int first_index;
+   /** Last index in bo with query data for this object. */
+   int last_index;
+
+   /* Total count of pixels from previous BOs */
+   uint64_t result;
+};
+
+#define CC_RELOC_VP 0
+
+
+/**
+ * brw_context is derived from pipe_context
+ */
+struct brw_context 
+{
+   struct pipe_context base;
+   struct brw_chipset chipset;
+
+   struct brw_winsys_screen *sws;
+
+   struct brw_batchbuffer *batch;
+
+   GLuint primitive;
+   GLuint reduced_primitive;
+
+   /* Active state from the state tracker: 
+    */
+   struct {
+      struct brw_vertex_shader *vertex_shader;
+      struct brw_fragment_shader *fragment_shader;
+      const struct brw_blend_state *blend;
+      const struct brw_rasterizer_state *rast;
+      const struct brw_depth_stencil_state *zstencil;
+
+      const struct brw_sampler *sampler[PIPE_MAX_SAMPLERS];
+      unsigned num_samplers;
+
+      struct pipe_texture *texture[PIPE_MAX_SAMPLERS];
+      struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
+      struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
+      unsigned num_vertex_elements;
+      unsigned num_textures;
+      unsigned num_vertex_buffers;
+
+      struct pipe_scissor_state scissor;
+      struct pipe_viewport_state viewport;
+      struct pipe_framebuffer_state fb;
+      struct pipe_clip_state ucp;
+      struct pipe_buffer *vertex_constants;
+      struct pipe_buffer *fragment_constants;
+
+      struct brw_blend_constant_color bcc;
+      struct brw_polygon_stipple bps;
+      struct brw_cc_viewport ccv;
+
+      /**
+       * Index buffer for this draw_prims call.
+       *
+       * Updates are signaled by PIPE_NEW_INDEX_BUFFER.
+       */
+      struct pipe_buffer *index_buffer;
+      unsigned index_size;
+
+      /* Updates are signalled by PIPE_NEW_INDEX_RANGE:
+       */
+      unsigned min_index;
+      unsigned max_index;
+
+   } curr;
+
+   struct {
+      struct brw_state_flags dirty;
+
+      /**
+       * List of buffers accumulated in brw_validate_state to receive
+       * dri_bo_check_aperture treatment before exec, so we can know if we
+       * should flush the batch and try again before emitting primitives.
+       *
+       * This can be a fixed number as we only have a limited number of
+       * objects referenced from the batchbuffer in a primitive emit,
+       * consisting of the vertex buffers, pipelined state pointers,
+       * the CURBE, the depth buffer, and a query BO.
+       */
+      struct brw_winsys_buffer *validated_bos[PIPE_MAX_SHADER_INPUTS + 16];
+      int validated_bo_count;
+   } state;
+
+   struct brw_cache cache;  /** non-surface items */
+   struct brw_cache surface_cache;  /* surface items */
+   struct brw_cached_batch_item *cached_batch_items;
+
+   struct {
+      struct u_upload_mgr *upload_vertex;
+      struct u_upload_mgr *upload_index;
+      
+      /* Information on uploaded vertex buffers:
+       */
+      struct {
+	 unsigned stride;	/* in bytes between successive vertices */
+	 unsigned offset;	/* in bytes, of first vertex in bo */
+	 unsigned vertex_count;	/* count of valid vertices which may be accessed */
+	 struct brw_winsys_buffer *bo;
+      } vb[PIPE_MAX_ATTRIBS];
+
+      unsigned nr_vb;		/* currently the same as curr.num_vertex_buffers */
+   } vb;
+
+   struct {
+      /* Updates to these fields are signaled by BRW_NEW_INDEX_BUFFER. */
+      struct brw_winsys_buffer *bo;
+      unsigned int offset;
+      unsigned int size;
+      /* Offset to index buffer index to use in CMD_3D_PRIM so that we can
+       * avoid re-uploading the IB packet over and over if we're actually
+       * referencing the same index buffer.
+       */
+      unsigned int start_vertex_offset;
+   } ib;
+
+
+   /* BRW_NEW_URB_ALLOCATIONS:
+    */
+   struct {
+      GLuint vsize;		/* vertex size plus header in urb registers */
+      GLuint csize;		/* constant buffer size in urb registers */
+      GLuint sfsize;		/* setup data size in urb registers */
+
+      GLboolean constrained;
+
+      GLuint nr_vs_entries;
+      GLuint nr_gs_entries;
+      GLuint nr_clip_entries;
+      GLuint nr_sf_entries;
+      GLuint nr_cs_entries;
+
+      GLuint vs_start;
+      GLuint gs_start;
+      GLuint clip_start;
+      GLuint sf_start;
+      GLuint cs_start;
+   } urb;
+
+   
+   /* BRW_NEW_CURBE_OFFSETS: 
+    */
+   struct {
+      GLuint wm_start;  /**< pos of first wm const in CURBE buffer */
+      GLuint wm_size;   /**< number of float[4] consts, multiple of 16 */
+      GLuint clip_start;
+      GLuint clip_size;
+      GLuint vs_start;
+      GLuint vs_size;
+      GLuint total_size;
+
+      struct brw_winsys_buffer *curbe_bo;
+      /** Offset within curbe_bo of space for current curbe entry */
+      GLuint curbe_offset;
+      /** Offset within curbe_bo of space for next curbe entry */
+      GLuint curbe_next_offset;
+
+      GLfloat *last_buf;
+      GLuint last_bufsz;
+      /**
+       *  Whether we should create a new bo instead of reusing the old one
+       * (if we just dispatch the batch pointing at the old one.
+       */
+      GLboolean need_new_bo;
+   } curbe;
+
+   struct {
+      struct brw_vs_prog_data *prog_data;
+
+      struct brw_winsys_buffer *prog_bo;
+      struct brw_winsys_buffer *state_bo;
+
+      /** Binding table of pointers to surf_bo entries */
+      struct brw_winsys_buffer *bind_bo;
+      struct brw_winsys_buffer *surf_bo[BRW_VS_MAX_SURF];
+      GLuint nr_surfaces;      
+   } vs;
+
+   struct {
+      struct brw_gs_prog_data *prog_data;
+
+      GLboolean prog_active;
+      struct brw_winsys_buffer *prog_bo;
+      struct brw_winsys_buffer *state_bo;
+   } gs;
+
+   struct {
+      struct brw_clip_prog_data *prog_data;
+
+      struct brw_winsys_buffer *prog_bo;
+      struct brw_winsys_buffer *state_bo;
+      struct brw_winsys_buffer *vp_bo;
+   } clip;
+
+
+   struct {
+      struct brw_sf_prog_data *prog_data;
+
+      struct brw_winsys_buffer *prog_bo;
+      struct brw_winsys_buffer *state_bo;
+      struct brw_winsys_buffer *vp_bo;
+   } sf;
+
+   struct {
+      struct brw_wm_prog_data *prog_data;
+      struct brw_wm_compile *compile_data;
+
+      /** Input sizes, calculated from active vertex program.
+       * One bit per fragment program input attribute.
+       */
+      /*GLbitfield input_size_masks[4];*/
+
+      /** Array of surface default colors (texture border color) */
+      struct brw_winsys_buffer *sdc_bo[BRW_MAX_TEX_UNIT];
+
+      GLuint render_surf;
+      GLuint nr_surfaces;      
+
+      GLuint max_threads;
+      struct brw_winsys_buffer *scratch_bo;
+
+      GLuint sampler_count;
+      struct brw_winsys_buffer *sampler_bo;
+
+      /** Binding table of pointers to surf_bo entries */
+      struct brw_winsys_buffer *bind_bo;
+      struct brw_winsys_buffer *surf_bo[BRW_WM_MAX_SURF];
+
+      struct brw_winsys_buffer *prog_bo;
+      struct brw_winsys_buffer *state_bo;
+   } wm;
+
+
+   struct {
+      struct brw_winsys_buffer *state_bo;
+
+      struct brw_cc_unit_state cc;
+      struct brw_winsys_reloc reloc[1];
+   } cc;
+
+   struct {
+      struct brw_query_object active_head;
+      struct brw_winsys_buffer *bo;
+      int index;
+      GLboolean active;
+      int stats_wm;
+   } query;
+
+   struct {
+      unsigned always_emit_state:1;
+      unsigned always_flush_batch:1;
+      unsigned force_swtnl:1;
+      unsigned no_swtnl:1;
+   } flags;
+
+   /* Used to give every program string a unique id
+    */
+   GLuint program_id;
+};
+
+
+
+/*======================================================================
+ * brw_queryobj.c
+ */
+void brw_init_query(struct brw_context *brw);
+enum pipe_error brw_prepare_query_begin(struct brw_context *brw);
+void brw_emit_query_begin(struct brw_context *brw);
+void brw_emit_query_end(struct brw_context *brw);
+
+/*======================================================================
+ * brw_state_dump.c
+ */
+void brw_debug_batch(struct brw_context *intel);
+
+
+/*======================================================================
+ * brw_pipe_*.c
+ */
+void brw_pipe_blend_init( struct brw_context *brw );
+void brw_pipe_depth_stencil_init( struct brw_context *brw );
+void brw_pipe_framebuffer_init( struct brw_context *brw );
+void brw_pipe_flush_init( struct brw_context *brw );
+void brw_pipe_misc_init( struct brw_context *brw );
+void brw_pipe_query_init( struct brw_context *brw );
+void brw_pipe_rast_init( struct brw_context *brw );
+void brw_pipe_sampler_init( struct brw_context *brw );
+void brw_pipe_shader_init( struct brw_context *brw );
+void brw_pipe_vertex_init( struct brw_context *brw );
+void brw_pipe_clear_init( struct brw_context *brw );
+
+
+void brw_pipe_blend_cleanup( struct brw_context *brw );
+void brw_pipe_depth_stencil_cleanup( struct brw_context *brw );
+void brw_pipe_framebuffer_cleanup( struct brw_context *brw );
+void brw_pipe_flush_cleanup( struct brw_context *brw );
+void brw_pipe_misc_cleanup( struct brw_context *brw );
+void brw_pipe_query_cleanup( struct brw_context *brw );
+void brw_pipe_rast_cleanup( struct brw_context *brw );
+void brw_pipe_sampler_cleanup( struct brw_context *brw );
+void brw_pipe_shader_cleanup( struct brw_context *brw );
+void brw_pipe_vertex_cleanup( struct brw_context *brw );
+void brw_pipe_clear_cleanup( struct brw_context *brw );
+
+void brw_hw_cc_init( struct brw_context *brw );
+void brw_hw_cc_cleanup( struct brw_context *brw );
+
+
+
+void brw_context_flush( struct brw_context *brw );
+
+
+/* brw_urb.c
+ */
+int brw_upload_urb_fence(struct brw_context *brw);
+
+/* brw_curbe.c
+ */
+int brw_upload_cs_urb_state(struct brw_context *brw);
+
+
+/*======================================================================
+ * Inline conversion functions.  These are better-typed than the
+ * macros used previously:
+ */
+static INLINE struct brw_context *
+brw_context( struct pipe_context *ctx )
+{
+   return (struct brw_context *)ctx;
+}
+
+
+#define BRW_IS_965(brw)    ((brw)->chipset.is_965)
+#define BRW_IS_IGDNG(brw)  ((brw)->chipset.is_igdng)
+#define BRW_IS_G4X(brw)    ((brw)->chipset.is_g4x)
+
+
+#endif
+