gallium: michel's patch to rework texture/sampler binding interface

Bind all the samplers/textures at once rather than piecemeal.
This is easier for drivers to understand.

1 files changed, 684 insertions, 681 deletions

diff --git a/src/gallium/drivers/i965simple/brw_context.h b/src/gallium/drivers/i965simple/brw_context.h
index 4da3a8cffcf..b83a13c3b6b 100644
--- a/src/gallium/drivers/i965simple/brw_context.h
+++ b/src/gallium/drivers/i965simple/brw_context.h
@@ -1,681 +1,684 @@
-/*
- 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 "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "pipe/p_state.h"
-
-#include "tgsi/util/tgsi_scan.h"
-
-#include "brw_structs.h"
-#include "brw_winsys.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 spawining 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 contigous
- * 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 descisions 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_winsys;
-
-
-/* Raised when we receive new state across the pipe interface:
- */
-#define BRW_NEW_VIEWPORT                0x1
-#define BRW_NEW_RASTERIZER              0x2
-#define BRW_NEW_FS                      0x4
-#define BRW_NEW_BLEND                   0x8
-#define BRW_NEW_CLIP                    0x10
-#define BRW_NEW_SCISSOR                 0x20
-#define BRW_NEW_STIPPLE                 0x40
-#define BRW_NEW_FRAMEBUFFER             0x80
-#define BRW_NEW_ALPHA_TEST              0x100
-#define BRW_NEW_DEPTH_STENCIL           0x200
-#define BRW_NEW_SAMPLER                 0x400
-#define BRW_NEW_TEXTURE                 0x800
-#define BRW_NEW_CONSTANTS               0x1000
-#define BRW_NEW_VBO                     0x2000
-#define BRW_NEW_VS                      0x4000
-
-/* Raised for other internal events:
- */
-#define BRW_NEW_URB_FENCE               0x10000
-#define BRW_NEW_PSP                     0x20000
-#define BRW_NEW_CURBE_OFFSETS           0x40000
-#define BRW_NEW_REDUCED_PRIMITIVE       0x80000
-#define BRW_NEW_PRIMITIVE               0x100000
-#define BRW_NEW_SCENE                 0x200000
-#define BRW_NEW_SF_LINKAGE              0x400000
-
-extern int BRW_DEBUG;
-
-#define DEBUG_TEXTURE	0x1
-#define DEBUG_STATE	0x2
-#define DEBUG_IOCTL	0x4
-#define DEBUG_PRIMS	0x8
-#define DEBUG_VERTS	0x10
-#define DEBUG_FALLBACKS	0x20
-#define DEBUG_VERBOSE	0x40
-#define DEBUG_DRI       0x80
-#define DEBUG_DMA       0x100
-#define DEBUG_SANITY    0x200
-#define DEBUG_SYNC      0x400
-#define DEBUG_SLEEP     0x800
-#define DEBUG_PIXEL     0x1000
-#define DEBUG_STATS     0x2000
-#define DEBUG_TILE      0x4000
-#define DEBUG_SINGLE_THREAD   0x8000
-#define DEBUG_WM        0x10000
-#define DEBUG_URB       0x20000
-#define DEBUG_VS        0x40000
-#define DEBUG_BATCH	0x80000
-#define DEBUG_BUFMGR	0x100000
-#define DEBUG_BLIT	0x200000
-#define DEBUG_REGION	0x400000
-#define DEBUG_MIPTREE	0x800000
-
-#define DBG(...) do {						\
-	if (BRW_DEBUG & FILE_DEBUG_FLAG)			\
-	       brw->pipe.winsys->printf(brw->pipe.winsys, __VA_ARGS__);			\
-} while(0)
-
-#define PRINT(...) do {						\
-	       brw->pipe.winsys->printf(brw->pipe.winsys, __VA_ARGS__);			\
-} while(0)
-
-struct brw_state_flags {
-   unsigned cache;
-   unsigned brw;
-};
-
-
-struct brw_vertex_program {
-   struct pipe_shader_state program;
-   struct tgsi_shader_info info;
-   int id;
-};
-
-
-struct brw_fragment_program {
-   struct pipe_shader_state program;
-   struct tgsi_shader_info info;
-   
-   boolean UsesDepth; /* XXX add this to tgsi_shader_info? */
-   int id;
-};
-
-
-struct pipe_setup_linkage {
-   struct {
-      unsigned vp_output:5;
-      unsigned interp_mode:4;
-      unsigned bf_vp_output:5;
-   } fp_input[PIPE_MAX_SHADER_INPUTS];
-
-   unsigned fp_input_count:5;
-   unsigned max_vp_output:5;
-};
-   
-
-
-struct brw_texture {
-   struct pipe_texture base;
-
-   /* Derived from the above:
-    */
-   unsigned pitch;
-   unsigned depth_pitch;          /* per-image on i945? */
-   unsigned total_height;
-
-   unsigned nr_images[PIPE_MAX_TEXTURE_LEVELS];
-
-   /* Explicitly store the offset of each image for each cube face or
-    * depth value.  Pretty much have to accept that hardware formats
-    * are going to be so diverse that there is no unified way to
-    * compute the offsets of depth/cube images within a mipmap level,
-    * so have to store them as a lookup table:
-    */
-   unsigned *image_offset[PIPE_MAX_TEXTURE_LEVELS];   /**< array [depth] of offsets */
-
-   /* Includes image offset tables:
-    */
-   unsigned level_offset[PIPE_MAX_TEXTURE_LEVELS];
-
-   /* The data is held here:
-    */
-   struct pipe_buffer *buffer;
-};
-
-/* 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:
- */
-/* 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 {
-   unsigned curb_read_length;
-   unsigned urb_read_length;
-
-   unsigned first_curbe_grf;
-   unsigned total_grf;
-   unsigned total_scratch;
-
-   /* Internally generated constants for the CURBE.  These are loaded
-    * ahead of the data from the constant buffer.
-    */
-   const float internal_const[8];
-   unsigned nr_internal_consts;
-   unsigned max_const;
-
-   boolean error;
-};
-
-struct brw_sf_prog_data {
-   unsigned urb_read_length;
-   unsigned 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.
-    */
-   unsigned urb_entry_size;
-};
-
-struct brw_clip_prog_data {
-   unsigned curb_read_length;	/* user planes? */
-   unsigned clip_mode;
-   unsigned urb_read_length;
-   unsigned total_grf;
-};
-
-struct brw_gs_prog_data {
-   unsigned urb_read_length;
-   unsigned total_grf;
-};
-
-struct brw_vs_prog_data {
-   unsigned curb_read_length;
-   unsigned urb_read_length;
-   unsigned total_grf;
-   unsigned outputs_written;
-
-   unsigned inputs_read;
-
-   unsigned max_const;
-
-   float    imm_buf[PIPE_MAX_CONSTANT][4];
-   unsigned num_imm;
-   unsigned num_consts;
-
-   /* Used for calculating urb partitions:
-    */
-   unsigned urb_entry_size;
-};
-
-
-#define BRW_MAX_TEX_UNIT 8
-#define BRW_WM_MAX_SURF BRW_MAX_TEX_UNIT + 1
-
-/* Create a fixed sized struct for caching binding tables:
- */
-struct brw_surface_binding_table {
-   unsigned surf_ss_offset[BRW_WM_MAX_SURF];
-};
-
-
-struct brw_cache;
-
-struct brw_mem_pool {
-   struct pipe_buffer *buffer;
-
-   unsigned size;
-   unsigned offset;		/* offset of first free byte */
-
-   struct brw_context *brw;
-};
-
-struct brw_cache_item {
-   unsigned hash;
-   unsigned key_size;		/* for variable-sized keys */
-   const void *key;
-
-   unsigned offset;		/* offset within pool's buffer */
-   unsigned data_size;
-
-   struct brw_cache_item *next;
-};
-
-
-
-struct brw_cache {
-   unsigned id;
-
-   const char *name;
-
-   struct brw_context *brw;
-   struct brw_mem_pool *pool;
-
-   struct brw_cache_item **items;
-   unsigned size, n_items;
-
-   unsigned key_size;		/* for fixed-size keys */
-   unsigned aux_size;
-
-   unsigned last_addr;			/* offset of active item */
-};
-
-
-
-
-/* Considered adding a member to this struct to document which flags
- * an update might raise so that ordering of the state atoms can be
- * checked or derived at runtime.  Dropped the idea in favor of having
- * a debug mode where the state is monitored for flags which are
- * raised that have already been tested against.
- */
-struct brw_tracked_state {
-   struct brw_state_flags dirty;
-   void (*update)( 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)
-
-
-
-
-enum brw_mempool_id {
-   BRW_GS_POOL,
-   BRW_SS_POOL,
-   BRW_MAX_POOL
-};
-
-
-struct brw_cached_batch_item {
-   struct header *header;
-   unsigned sz;
-   struct brw_cached_batch_item *next;
-};
-
-
-
-/* Protect against a future where PIPE_ATTRIB_MAX > 32.  Wouldn't life
- * be easier if C allowed arrays of packed elements?
- */
-#define ATTRIB_BIT_DWORDS  ((PIPE_ATTRIB_MAX+31)/32)
-
-
-
-
-struct brw_vertex_info {
-   unsigned varying;  /* varying:1[PIPE_ATTRIB_MAX] */
-   unsigned sizes[ATTRIB_BIT_DWORDS * 2]; /* sizes:2[PIPE_ATTRIB_MAX] */
-};
-
-
-
-
-
-struct brw_context
-{
-   struct pipe_context pipe;
-   struct brw_winsys *winsys;
-
-   unsigned primitive;
-   unsigned reduced_primitive;
-
-   boolean emit_state_always;
-
-   struct {
-      struct brw_state_flags dirty;
-   } state;
-
-
-   struct {
-      const struct pipe_blend_state         *Blend;
-      const struct pipe_depth_stencil_alpha_state *DepthStencil;
-      const struct pipe_poly_stipple        *PolygonStipple;
-      const struct pipe_rasterizer_state    *Raster;
-      const struct pipe_sampler_state       *Samplers[PIPE_MAX_SAMPLERS];
-      const struct brw_vertex_program       *VertexProgram;
-      const struct brw_fragment_program     *FragmentProgram;
-
-      struct pipe_clip_state          Clip;
-      struct pipe_blend_color         BlendColor;
-      struct pipe_scissor_state       Scissor;
-      struct pipe_viewport_state      Viewport;
-      struct pipe_framebuffer_state   FrameBuffer;
-
-      const struct pipe_constant_buffer *Constants[2];
-      const struct brw_texture          *Texture[PIPE_MAX_SAMPLERS];
-   } attribs;
-
-   struct brw_mem_pool pool[BRW_MAX_POOL];
-   struct brw_cache cache[BRW_MAX_CACHE];
-   struct brw_cached_batch_item *cached_batch_items;
-
-   struct {
-
-      /* Arrays with buffer objects to copy non-bufferobj arrays into
-       * for upload:
-       */
-      const struct pipe_vertex_buffer *vbo_array[PIPE_ATTRIB_MAX];
-
-      struct brw_vertex_element_state inputs[PIPE_ATTRIB_MAX];
-
-#define BRW_NR_UPLOAD_BUFS 17
-#define BRW_UPLOAD_INIT_SIZE (128*1024)
-
-      /* Summary of size and varying of active arrays, so we can check
-       * for changes to this state:
-       */
-      struct brw_vertex_info info;
-   } vb;
-
-
-   unsigned hardware_dirty;
-   unsigned dirty;
-   unsigned pci_id;
-   /* BRW_NEW_URB_ALLOCATIONS:
-    */
-   struct {
-      unsigned vsize;		/* vertex size plus header in urb registers */
-      unsigned csize;		/* constant buffer size in urb registers */
-      unsigned sfsize;		/* setup data size in urb registers */
-
-      boolean constrained;
-
-      unsigned nr_vs_entries;
-      unsigned nr_gs_entries;
-      unsigned nr_clip_entries;
-      unsigned nr_sf_entries;
-      unsigned nr_cs_entries;
-
-/*       unsigned vs_size; */
-/*       unsigned gs_size; */
-/*       unsigned clip_size; */
-/*       unsigned sf_size; */
-/*       unsigned cs_size; */
-
-      unsigned vs_start;
-      unsigned gs_start;
-      unsigned clip_start;
-      unsigned sf_start;
-      unsigned cs_start;
-   } urb;
-
-
-   /* BRW_NEW_CURBE_OFFSETS:
-    */
-   struct {
-      unsigned wm_start;
-      unsigned wm_size;
-      unsigned clip_start;
-      unsigned clip_size;
-      unsigned vs_start;
-      unsigned vs_size;
-      unsigned total_size;
-
-      unsigned gs_offset;
-
-      float *last_buf;
-      unsigned last_bufsz;
-   } curbe;
-
-   struct {
-      struct brw_vs_prog_data *prog_data;
-
-      unsigned prog_gs_offset;
-      unsigned state_gs_offset;
-   } vs;
-
-   struct {
-      struct brw_gs_prog_data *prog_data;
-
-      boolean prog_active;
-      unsigned prog_gs_offset;
-      unsigned state_gs_offset;
-   } gs;
-
-   struct {
-      struct brw_clip_prog_data *prog_data;
-
-      unsigned prog_gs_offset;
-      unsigned vp_gs_offset;
-      unsigned state_gs_offset;
-   } clip;
-
-
-   struct {
-      struct brw_sf_prog_data *prog_data;
-
-      struct pipe_setup_linkage linkage;
-
-      unsigned prog_gs_offset;
-      unsigned vp_gs_offset;
-      unsigned state_gs_offset;
-   } sf;
-
-   struct {
-      struct brw_wm_prog_data *prog_data;
-
-//      struct brw_wm_compiler *compile_data;
-
-
-      /**
-       * Array of sampler state uploaded at sampler_gs_offset of BRW_SAMPLER
-       * cache
-       */
-      struct brw_sampler_state sampler[BRW_MAX_TEX_UNIT];
-
-      unsigned render_surf;
-      unsigned nr_surfaces;
-
-      unsigned max_threads;
-      struct pipe_buffer *scratch_buffer;
-      unsigned scratch_buffer_size;
-
-      unsigned sampler_count;
-      unsigned sampler_gs_offset;
-
-      struct brw_surface_binding_table bind;
-      unsigned bind_ss_offset;
-
-      unsigned prog_gs_offset;
-      unsigned state_gs_offset;
-   } wm;
-
-
-   struct {
-      unsigned vp_gs_offset;
-      unsigned state_gs_offset;
-   } cc;
-
-
-   /* Used to give every program string a unique id
-    */
-   unsigned program_id;
-};
-
-
-#define BRW_PACKCOLOR8888(r,g,b,a)  ((r<<24) | (g<<16) | (b<<8) | a)
-
-
-/*======================================================================
- * brw_vtbl.c
- */
-void brw_do_flush( struct brw_context *brw,
-		   unsigned flags );
-
-
-/*======================================================================
- * brw_state.c
- */
-void brw_validate_state(struct brw_context *brw);
-void brw_init_state(struct brw_context *brw);
-void brw_destroy_state(struct brw_context *brw);
-
-
-/*======================================================================
- * brw_tex.c
- */
-void brwUpdateTextureState( struct brw_context *brw );
-
-
-/* brw_urb.c
- */
-void brw_upload_urb_fence(struct brw_context *brw);
-
-void brw_upload_constant_buffer_state(struct brw_context *brw);
-
-void brw_init_surface_functions(struct brw_context *brw);
-void brw_init_state_functions(struct brw_context *brw);
-void brw_init_flush_functions(struct brw_context *brw);
-void brw_init_string_functions(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;
-}
-
-#endif
-
+/*

+ 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 "pipe/p_context.h"

+#include "pipe/p_defines.h"

+#include "pipe/p_state.h"

+

+#include "tgsi/util/tgsi_scan.h"

+

+#include "brw_structs.h"

+#include "brw_winsys.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 spawining 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 contigous

+ * 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 descisions 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_winsys;

+

+

+/* Raised when we receive new state across the pipe interface:

+ */

+#define BRW_NEW_VIEWPORT                0x1

+#define BRW_NEW_RASTERIZER              0x2

+#define BRW_NEW_FS                      0x4

+#define BRW_NEW_BLEND                   0x8

+#define BRW_NEW_CLIP                    0x10

+#define BRW_NEW_SCISSOR                 0x20

+#define BRW_NEW_STIPPLE                 0x40

+#define BRW_NEW_FRAMEBUFFER             0x80

+#define BRW_NEW_ALPHA_TEST              0x100

+#define BRW_NEW_DEPTH_STENCIL           0x200

+#define BRW_NEW_SAMPLER                 0x400

+#define BRW_NEW_TEXTURE                 0x800

+#define BRW_NEW_CONSTANTS               0x1000

+#define BRW_NEW_VBO                     0x2000

+#define BRW_NEW_VS                      0x4000

+

+/* Raised for other internal events:

+ */

+#define BRW_NEW_URB_FENCE               0x10000

+#define BRW_NEW_PSP                     0x20000

+#define BRW_NEW_CURBE_OFFSETS           0x40000

+#define BRW_NEW_REDUCED_PRIMITIVE       0x80000

+#define BRW_NEW_PRIMITIVE               0x100000

+#define BRW_NEW_SCENE                 0x200000

+#define BRW_NEW_SF_LINKAGE              0x400000

+

+extern int BRW_DEBUG;

+

+#define DEBUG_TEXTURE	0x1

+#define DEBUG_STATE	0x2

+#define DEBUG_IOCTL	0x4

+#define DEBUG_PRIMS	0x8

+#define DEBUG_VERTS	0x10

+#define DEBUG_FALLBACKS	0x20

+#define DEBUG_VERBOSE	0x40

+#define DEBUG_DRI       0x80

+#define DEBUG_DMA       0x100

+#define DEBUG_SANITY    0x200

+#define DEBUG_SYNC      0x400

+#define DEBUG_SLEEP     0x800

+#define DEBUG_PIXEL     0x1000

+#define DEBUG_STATS     0x2000

+#define DEBUG_TILE      0x4000

+#define DEBUG_SINGLE_THREAD   0x8000

+#define DEBUG_WM        0x10000

+#define DEBUG_URB       0x20000

+#define DEBUG_VS        0x40000

+#define DEBUG_BATCH	0x80000

+#define DEBUG_BUFMGR	0x100000

+#define DEBUG_BLIT	0x200000

+#define DEBUG_REGION	0x400000

+#define DEBUG_MIPTREE	0x800000

+

+#define DBG(...) do {						\

+	if (BRW_DEBUG & FILE_DEBUG_FLAG)			\

+	       brw->pipe.winsys->printf(brw->pipe.winsys, __VA_ARGS__);			\

+} while(0)

+

+#define PRINT(...) do {						\

+	       brw->pipe.winsys->printf(brw->pipe.winsys, __VA_ARGS__);			\

+} while(0)

+

+struct brw_state_flags {

+   unsigned cache;

+   unsigned brw;

+};

+

+

+struct brw_vertex_program {

+   struct pipe_shader_state program;

+   struct tgsi_shader_info info;

+   int id;

+};

+

+

+struct brw_fragment_program {

+   struct pipe_shader_state program;

+   struct tgsi_shader_info info;

+   

+   boolean UsesDepth; /* XXX add this to tgsi_shader_info? */

+   int id;

+};

+

+

+struct pipe_setup_linkage {

+   struct {

+      unsigned vp_output:5;

+      unsigned interp_mode:4;

+      unsigned bf_vp_output:5;

+   } fp_input[PIPE_MAX_SHADER_INPUTS];

+

+   unsigned fp_input_count:5;

+   unsigned max_vp_output:5;

+};

+   

+

+

+struct brw_texture {

+   struct pipe_texture base;

+

+   /* Derived from the above:

+    */

+   unsigned pitch;

+   unsigned depth_pitch;          /* per-image on i945? */

+   unsigned total_height;

+

+   unsigned nr_images[PIPE_MAX_TEXTURE_LEVELS];

+

+   /* Explicitly store the offset of each image for each cube face or

+    * depth value.  Pretty much have to accept that hardware formats

+    * are going to be so diverse that there is no unified way to

+    * compute the offsets of depth/cube images within a mipmap level,

+    * so have to store them as a lookup table:

+    */

+   unsigned *image_offset[PIPE_MAX_TEXTURE_LEVELS];   /**< array [depth] of offsets */

+

+   /* Includes image offset tables:

+    */

+   unsigned level_offset[PIPE_MAX_TEXTURE_LEVELS];

+

+   /* The data is held here:

+    */

+   struct pipe_buffer *buffer;

+};

+

+/* 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:

+ */

+/* 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 {

+   unsigned curb_read_length;

+   unsigned urb_read_length;

+

+   unsigned first_curbe_grf;

+   unsigned total_grf;

+   unsigned total_scratch;

+

+   /* Internally generated constants for the CURBE.  These are loaded

+    * ahead of the data from the constant buffer.

+    */

+   const float internal_const[8];

+   unsigned nr_internal_consts;

+   unsigned max_const;

+

+   boolean error;

+};

+

+struct brw_sf_prog_data {

+   unsigned urb_read_length;

+   unsigned 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.

+    */

+   unsigned urb_entry_size;

+};

+

+struct brw_clip_prog_data {

+   unsigned curb_read_length;	/* user planes? */

+   unsigned clip_mode;

+   unsigned urb_read_length;

+   unsigned total_grf;

+};

+

+struct brw_gs_prog_data {

+   unsigned urb_read_length;

+   unsigned total_grf;

+};

+

+struct brw_vs_prog_data {

+   unsigned curb_read_length;

+   unsigned urb_read_length;

+   unsigned total_grf;

+   unsigned outputs_written;

+

+   unsigned inputs_read;

+

+   unsigned max_const;

+

+   float    imm_buf[PIPE_MAX_CONSTANT][4];

+   unsigned num_imm;

+   unsigned num_consts;

+

+   /* Used for calculating urb partitions:

+    */

+   unsigned urb_entry_size;

+};

+

+

+#define BRW_MAX_TEX_UNIT 8

+#define BRW_WM_MAX_SURF BRW_MAX_TEX_UNIT + 1

+

+/* Create a fixed sized struct for caching binding tables:

+ */

+struct brw_surface_binding_table {

+   unsigned surf_ss_offset[BRW_WM_MAX_SURF];

+};

+

+

+struct brw_cache;

+

+struct brw_mem_pool {

+   struct pipe_buffer *buffer;

+

+   unsigned size;

+   unsigned offset;		/* offset of first free byte */

+

+   struct brw_context *brw;

+};

+

+struct brw_cache_item {

+   unsigned hash;

+   unsigned key_size;		/* for variable-sized keys */

+   const void *key;

+

+   unsigned offset;		/* offset within pool's buffer */

+   unsigned data_size;

+

+   struct brw_cache_item *next;

+};

+

+

+

+struct brw_cache {

+   unsigned id;

+

+   const char *name;

+

+   struct brw_context *brw;

+   struct brw_mem_pool *pool;

+

+   struct brw_cache_item **items;

+   unsigned size, n_items;

+

+   unsigned key_size;		/* for fixed-size keys */

+   unsigned aux_size;

+

+   unsigned last_addr;			/* offset of active item */

+};

+

+

+

+

+/* Considered adding a member to this struct to document which flags

+ * an update might raise so that ordering of the state atoms can be

+ * checked or derived at runtime.  Dropped the idea in favor of having

+ * a debug mode where the state is monitored for flags which are

+ * raised that have already been tested against.

+ */

+struct brw_tracked_state {

+   struct brw_state_flags dirty;

+   void (*update)( 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)

+

+

+

+

+enum brw_mempool_id {

+   BRW_GS_POOL,

+   BRW_SS_POOL,

+   BRW_MAX_POOL

+};

+

+

+struct brw_cached_batch_item {

+   struct header *header;

+   unsigned sz;

+   struct brw_cached_batch_item *next;

+};

+

+

+

+/* Protect against a future where PIPE_ATTRIB_MAX > 32.  Wouldn't life

+ * be easier if C allowed arrays of packed elements?

+ */

+#define ATTRIB_BIT_DWORDS  ((PIPE_ATTRIB_MAX+31)/32)

+

+

+

+

+struct brw_vertex_info {

+   unsigned varying;  /* varying:1[PIPE_ATTRIB_MAX] */

+   unsigned sizes[ATTRIB_BIT_DWORDS * 2]; /* sizes:2[PIPE_ATTRIB_MAX] */

+};

+

+

+

+

+

+struct brw_context

+{

+   struct pipe_context pipe;

+   struct brw_winsys *winsys;

+

+   unsigned primitive;

+   unsigned reduced_primitive;

+

+   boolean emit_state_always;

+

+   struct {

+      struct brw_state_flags dirty;

+   } state;

+

+

+   struct {

+      const struct pipe_blend_state         *Blend;

+      const struct pipe_depth_stencil_alpha_state *DepthStencil;

+      const struct pipe_poly_stipple        *PolygonStipple;

+      const struct pipe_rasterizer_state    *Raster;

+      const struct pipe_sampler_state       *Samplers[PIPE_MAX_SAMPLERS];

+      const struct brw_vertex_program       *VertexProgram;

+      const struct brw_fragment_program     *FragmentProgram;

+

+      struct pipe_clip_state          Clip;

+      struct pipe_blend_color         BlendColor;

+      struct pipe_scissor_state       Scissor;

+      struct pipe_viewport_state      Viewport;

+      struct pipe_framebuffer_state   FrameBuffer;

+

+      const struct pipe_constant_buffer *Constants[2];

+      const struct brw_texture          *Texture[PIPE_MAX_SAMPLERS];

+   } attribs;

+

+   unsigned num_samplers;

+   unsigned num_textures;

+

+   struct brw_mem_pool pool[BRW_MAX_POOL];

+   struct brw_cache cache[BRW_MAX_CACHE];

+   struct brw_cached_batch_item *cached_batch_items;

+

+   struct {

+

+      /* Arrays with buffer objects to copy non-bufferobj arrays into

+       * for upload:

+       */

+      const struct pipe_vertex_buffer *vbo_array[PIPE_ATTRIB_MAX];

+

+      struct brw_vertex_element_state inputs[PIPE_ATTRIB_MAX];

+

+#define BRW_NR_UPLOAD_BUFS 17

+#define BRW_UPLOAD_INIT_SIZE (128*1024)

+

+      /* Summary of size and varying of active arrays, so we can check

+       * for changes to this state:

+       */

+      struct brw_vertex_info info;

+   } vb;

+

+

+   unsigned hardware_dirty;

+   unsigned dirty;

+   unsigned pci_id;

+   /* BRW_NEW_URB_ALLOCATIONS:

+    */

+   struct {

+      unsigned vsize;		/* vertex size plus header in urb registers */

+      unsigned csize;		/* constant buffer size in urb registers */

+      unsigned sfsize;		/* setup data size in urb registers */

+

+      boolean constrained;

+

+      unsigned nr_vs_entries;

+      unsigned nr_gs_entries;

+      unsigned nr_clip_entries;

+      unsigned nr_sf_entries;

+      unsigned nr_cs_entries;

+

+/*       unsigned vs_size; */

+/*       unsigned gs_size; */

+/*       unsigned clip_size; */

+/*       unsigned sf_size; */

+/*       unsigned cs_size; */

+

+      unsigned vs_start;

+      unsigned gs_start;

+      unsigned clip_start;

+      unsigned sf_start;

+      unsigned cs_start;

+   } urb;

+

+

+   /* BRW_NEW_CURBE_OFFSETS:

+    */

+   struct {

+      unsigned wm_start;

+      unsigned wm_size;

+      unsigned clip_start;

+      unsigned clip_size;

+      unsigned vs_start;

+      unsigned vs_size;

+      unsigned total_size;

+

+      unsigned gs_offset;

+

+      float *last_buf;

+      unsigned last_bufsz;

+   } curbe;

+

+   struct {

+      struct brw_vs_prog_data *prog_data;

+

+      unsigned prog_gs_offset;

+      unsigned state_gs_offset;

+   } vs;

+

+   struct {

+      struct brw_gs_prog_data *prog_data;

+

+      boolean prog_active;

+      unsigned prog_gs_offset;

+      unsigned state_gs_offset;

+   } gs;

+

+   struct {

+      struct brw_clip_prog_data *prog_data;

+

+      unsigned prog_gs_offset;

+      unsigned vp_gs_offset;

+      unsigned state_gs_offset;

+   } clip;

+

+

+   struct {

+      struct brw_sf_prog_data *prog_data;

+

+      struct pipe_setup_linkage linkage;

+

+      unsigned prog_gs_offset;

+      unsigned vp_gs_offset;

+      unsigned state_gs_offset;

+   } sf;

+

+   struct {

+      struct brw_wm_prog_data *prog_data;

+

+//      struct brw_wm_compiler *compile_data;

+

+

+      /**

+       * Array of sampler state uploaded at sampler_gs_offset of BRW_SAMPLER

+       * cache

+       */

+      struct brw_sampler_state sampler[BRW_MAX_TEX_UNIT];

+

+      unsigned render_surf;

+      unsigned nr_surfaces;

+

+      unsigned max_threads;

+      struct pipe_buffer *scratch_buffer;

+      unsigned scratch_buffer_size;

+

+      unsigned sampler_count;

+      unsigned sampler_gs_offset;

+

+      struct brw_surface_binding_table bind;

+      unsigned bind_ss_offset;

+

+      unsigned prog_gs_offset;

+      unsigned state_gs_offset;

+   } wm;

+

+

+   struct {

+      unsigned vp_gs_offset;

+      unsigned state_gs_offset;

+   } cc;

+

+

+   /* Used to give every program string a unique id

+    */

+   unsigned program_id;

+};

+

+

+#define BRW_PACKCOLOR8888(r,g,b,a)  ((r<<24) | (g<<16) | (b<<8) | a)

+

+

+/*======================================================================

+ * brw_vtbl.c

+ */

+void brw_do_flush( struct brw_context *brw,

+		   unsigned flags );

+

+

+/*======================================================================

+ * brw_state.c

+ */

+void brw_validate_state(struct brw_context *brw);

+void brw_init_state(struct brw_context *brw);

+void brw_destroy_state(struct brw_context *brw);

+

+

+/*======================================================================

+ * brw_tex.c

+ */

+void brwUpdateTextureState( struct brw_context *brw );

+

+

+/* brw_urb.c

+ */

+void brw_upload_urb_fence(struct brw_context *brw);

+

+void brw_upload_constant_buffer_state(struct brw_context *brw);

+

+void brw_init_surface_functions(struct brw_context *brw);

+void brw_init_state_functions(struct brw_context *brw);

+void brw_init_flush_functions(struct brw_context *brw);

+void brw_init_string_functions(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;

+}

+

+#endif

+