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-rw-r--r--src/gallium/drivers/i965simple/brw_context.h1368
1 files changed, 684 insertions, 684 deletions
diff --git a/src/gallium/drivers/i965simple/brw_context.h b/src/gallium/drivers/i965simple/brw_context.h
index eeccf367856..8ac6b4e6897 100644
--- a/src/gallium/drivers/i965simple/brw_context.h
+++ b/src/gallium/drivers/i965simple/brw_context.h
@@ -1,684 +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) \
- debug_printf(__VA_ARGS__); \
-} while(0)
-
-#define PRINT(...) do { \
- debug_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_MAX_ATTRIBS > 32. Wouldn't life
- * be easier if C allowed arrays of packed elements?
- */
-#define ATTRIB_BIT_DWORDS ((PIPE_MAX_ATTRIBS+31)/32)
-
-
-
-
-struct brw_vertex_info {
- unsigned varying; /* varying:1[PIPE_MAX_ATTRIBS] */
- unsigned sizes[ATTRIB_BIT_DWORDS * 2]; /* sizes:2[PIPE_MAX_ATTRIBS] */
-};
-
-
-
-
-
-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_MAX_ATTRIBS];
-
- struct brw_vertex_element_state inputs[PIPE_MAX_ATTRIBS];
-
-#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) \
+ debug_printf(__VA_ARGS__); \
+} while(0)
+
+#define PRINT(...) do { \
+ debug_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_MAX_ATTRIBS > 32. Wouldn't life
+ * be easier if C allowed arrays of packed elements?
+ */
+#define ATTRIB_BIT_DWORDS ((PIPE_MAX_ATTRIBS+31)/32)
+
+
+
+
+struct brw_vertex_info {
+ unsigned varying; /* varying:1[PIPE_MAX_ATTRIBS] */
+ unsigned sizes[ATTRIB_BIT_DWORDS * 2]; /* sizes:2[PIPE_MAX_ATTRIBS] */
+};
+
+
+
+
+
+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_MAX_ATTRIBS];
+
+ struct brw_vertex_element_state inputs[PIPE_MAX_ATTRIBS];
+
+#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
+
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