/* 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 */ #ifndef BRWCONTEXT_INC #define BRWCONTEXT_INC #include #include #include "main/imports.h" #include "main/macros.h" #include "main/mm.h" #include "main/mtypes.h" #include "brw_structs.h" #ifdef __cplusplus extern "C" { /* Evil hack for using libdrm in a c++ compiler. */ #define virtual virt #endif #include #include #include #ifdef __cplusplus #undef virtual } #endif #ifdef __cplusplus extern "C" { #endif #include "intel_debug.h" #include "intel_screen.h" #include "intel_tex_obj.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 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 INTEL_WRITE_PART 0x1 #define INTEL_WRITE_FULL 0x2 #define INTEL_READ 0x4 #define BRW_MAX_CURBE (32*16) struct brw_context; struct brw_instruction; struct brw_vs_prog_key; struct brw_vec4_prog_key; struct brw_wm_prog_key; struct brw_wm_prog_data; enum brw_state_id { BRW_STATE_URB_FENCE, BRW_STATE_FRAGMENT_PROGRAM, BRW_STATE_GEOMETRY_PROGRAM, BRW_STATE_VERTEX_PROGRAM, BRW_STATE_CURBE_OFFSETS, BRW_STATE_REDUCED_PRIMITIVE, BRW_STATE_PRIMITIVE, BRW_STATE_CONTEXT, BRW_STATE_PSP, BRW_STATE_SURFACES, BRW_STATE_VS_BINDING_TABLE, BRW_STATE_GS_BINDING_TABLE, BRW_STATE_PS_BINDING_TABLE, BRW_STATE_INDICES, BRW_STATE_VERTICES, BRW_STATE_BATCH, BRW_STATE_INDEX_BUFFER, BRW_STATE_VS_CONSTBUF, BRW_STATE_GS_CONSTBUF, BRW_STATE_PROGRAM_CACHE, BRW_STATE_STATE_BASE_ADDRESS, BRW_STATE_VUE_MAP_VS, BRW_STATE_VUE_MAP_GEOM_OUT, BRW_STATE_TRANSFORM_FEEDBACK, BRW_STATE_RASTERIZER_DISCARD, BRW_STATE_STATS_WM, BRW_STATE_UNIFORM_BUFFER, BRW_STATE_ATOMIC_BUFFER, BRW_STATE_META_IN_PROGRESS, BRW_STATE_INTERPOLATION_MAP, BRW_STATE_PUSH_CONSTANT_ALLOCATION, BRW_NUM_STATE_BITS }; #define BRW_NEW_URB_FENCE (1 << BRW_STATE_URB_FENCE) #define BRW_NEW_FRAGMENT_PROGRAM (1 << BRW_STATE_FRAGMENT_PROGRAM) #define BRW_NEW_GEOMETRY_PROGRAM (1 << BRW_STATE_GEOMETRY_PROGRAM) #define BRW_NEW_VERTEX_PROGRAM (1 << BRW_STATE_VERTEX_PROGRAM) #define BRW_NEW_CURBE_OFFSETS (1 << BRW_STATE_CURBE_OFFSETS) #define BRW_NEW_REDUCED_PRIMITIVE (1 << BRW_STATE_REDUCED_PRIMITIVE) #define BRW_NEW_PRIMITIVE (1 << BRW_STATE_PRIMITIVE) #define BRW_NEW_CONTEXT (1 << BRW_STATE_CONTEXT) #define BRW_NEW_PSP (1 << BRW_STATE_PSP) #define BRW_NEW_SURFACES (1 << BRW_STATE_SURFACES) #define BRW_NEW_VS_BINDING_TABLE (1 << BRW_STATE_VS_BINDING_TABLE) #define BRW_NEW_GS_BINDING_TABLE (1 << BRW_STATE_GS_BINDING_TABLE) #define BRW_NEW_PS_BINDING_TABLE (1 << BRW_STATE_PS_BINDING_TABLE) #define BRW_NEW_INDICES (1 << BRW_STATE_INDICES) #define BRW_NEW_VERTICES (1 << BRW_STATE_VERTICES) /** * Used for any batch entry with a relocated pointer that will be used * by any 3D rendering. */ #define BRW_NEW_BATCH (1 << BRW_STATE_BATCH) /** \see brw.state.depth_region */ #define BRW_NEW_INDEX_BUFFER (1 << BRW_STATE_INDEX_BUFFER) #define BRW_NEW_VS_CONSTBUF (1 << BRW_STATE_VS_CONSTBUF) #define BRW_NEW_GS_CONSTBUF (1 << BRW_STATE_GS_CONSTBUF) #define BRW_NEW_PROGRAM_CACHE (1 << BRW_STATE_PROGRAM_CACHE) #define BRW_NEW_STATE_BASE_ADDRESS (1 << BRW_STATE_STATE_BASE_ADDRESS) #define BRW_NEW_VUE_MAP_VS (1 << BRW_STATE_VUE_MAP_VS) #define BRW_NEW_VUE_MAP_GEOM_OUT (1 << BRW_STATE_VUE_MAP_GEOM_OUT) #define BRW_NEW_TRANSFORM_FEEDBACK (1 << BRW_STATE_TRANSFORM_FEEDBACK) #define BRW_NEW_RASTERIZER_DISCARD (1 << BRW_STATE_RASTERIZER_DISCARD) #define BRW_NEW_STATS_WM (1 << BRW_STATE_STATS_WM) #define BRW_NEW_UNIFORM_BUFFER (1 << BRW_STATE_UNIFORM_BUFFER) #define BRW_NEW_ATOMIC_BUFFER (1 << BRW_STATE_ATOMIC_BUFFER) #define BRW_NEW_META_IN_PROGRESS (1 << BRW_STATE_META_IN_PROGRESS) #define BRW_NEW_INTERPOLATION_MAP (1 << BRW_STATE_INTERPOLATION_MAP) #define BRW_NEW_PUSH_CONSTANT_ALLOCATION (1 << BRW_STATE_PUSH_CONSTANT_ALLOCATION) 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; }; #define AUB_TRACE_TYPE_MASK 0x0000ff00 #define AUB_TRACE_TYPE_NOTYPE (0 << 8) #define AUB_TRACE_TYPE_BATCH (1 << 8) #define AUB_TRACE_TYPE_VERTEX_BUFFER (5 << 8) #define AUB_TRACE_TYPE_2D_MAP (6 << 8) #define AUB_TRACE_TYPE_CUBE_MAP (7 << 8) #define AUB_TRACE_TYPE_VOLUME_MAP (9 << 8) #define AUB_TRACE_TYPE_1D_MAP (10 << 8) #define AUB_TRACE_TYPE_CONSTANT_BUFFER (11 << 8) #define AUB_TRACE_TYPE_CONSTANT_URB (12 << 8) #define AUB_TRACE_TYPE_INDEX_BUFFER (13 << 8) #define AUB_TRACE_TYPE_GENERAL (14 << 8) #define AUB_TRACE_TYPE_SURFACE (15 << 8) /** * state_struct_type enum values are encoded with the top 16 bits representing * the type to be delivered to the .aub file, and the bottom 16 bits * representing the subtype. This macro performs the encoding. */ #define ENCODE_SS_TYPE(type, subtype) (((type) << 16) | (subtype)) enum state_struct_type { AUB_TRACE_VS_STATE = ENCODE_SS_TYPE(AUB_TRACE_TYPE_GENERAL, 1), AUB_TRACE_GS_STATE = ENCODE_SS_TYPE(AUB_TRACE_TYPE_GENERAL, 2), AUB_TRACE_CLIP_STATE = ENCODE_SS_TYPE(AUB_TRACE_TYPE_GENERAL, 3), AUB_TRACE_SF_STATE = ENCODE_SS_TYPE(AUB_TRACE_TYPE_GENERAL, 4), AUB_TRACE_WM_STATE = ENCODE_SS_TYPE(AUB_TRACE_TYPE_GENERAL, 5), AUB_TRACE_CC_STATE = ENCODE_SS_TYPE(AUB_TRACE_TYPE_GENERAL, 6), AUB_TRACE_CLIP_VP_STATE = ENCODE_SS_TYPE(AUB_TRACE_TYPE_GENERAL, 7), AUB_TRACE_SF_VP_STATE = ENCODE_SS_TYPE(AUB_TRACE_TYPE_GENERAL, 8), AUB_TRACE_CC_VP_STATE = ENCODE_SS_TYPE(AUB_TRACE_TYPE_GENERAL, 0x9), AUB_TRACE_SAMPLER_STATE = ENCODE_SS_TYPE(AUB_TRACE_TYPE_GENERAL, 0xa), AUB_TRACE_KERNEL_INSTRUCTIONS = ENCODE_SS_TYPE(AUB_TRACE_TYPE_GENERAL, 0xb), AUB_TRACE_SCRATCH_SPACE = ENCODE_SS_TYPE(AUB_TRACE_TYPE_GENERAL, 0xc), AUB_TRACE_SAMPLER_DEFAULT_COLOR = ENCODE_SS_TYPE(AUB_TRACE_TYPE_GENERAL, 0xd), AUB_TRACE_SCISSOR_STATE = ENCODE_SS_TYPE(AUB_TRACE_TYPE_GENERAL, 0x15), AUB_TRACE_BLEND_STATE = ENCODE_SS_TYPE(AUB_TRACE_TYPE_GENERAL, 0x16), AUB_TRACE_DEPTH_STENCIL_STATE = ENCODE_SS_TYPE(AUB_TRACE_TYPE_GENERAL, 0x17), AUB_TRACE_VERTEX_BUFFER = ENCODE_SS_TYPE(AUB_TRACE_TYPE_VERTEX_BUFFER, 0), AUB_TRACE_BINDING_TABLE = ENCODE_SS_TYPE(AUB_TRACE_TYPE_SURFACE, 0x100), AUB_TRACE_SURFACE_STATE = ENCODE_SS_TYPE(AUB_TRACE_TYPE_SURFACE, 0x200), AUB_TRACE_VS_CONSTANTS = ENCODE_SS_TYPE(AUB_TRACE_TYPE_CONSTANT_BUFFER, 0), AUB_TRACE_WM_CONSTANTS = ENCODE_SS_TYPE(AUB_TRACE_TYPE_CONSTANT_BUFFER, 1), }; /** * Decode a state_struct_type value to determine the type that should be * stored in the .aub file. */ static inline uint32_t AUB_TRACE_TYPE(enum state_struct_type ss_type) { return (ss_type & 0xFFFF0000) >> 16; } /** * Decode a state_struct_type value to determine the subtype that should be * stored in the .aub file. */ static inline uint32_t AUB_TRACE_SUBTYPE(enum state_struct_type ss_type) { return ss_type & 0xFFFF; } /** Subclass of Mesa vertex program */ struct brw_vertex_program { struct gl_vertex_program program; GLuint id; }; /** Subclass of Mesa geometry program */ struct brw_geometry_program { struct gl_geometry_program program; unsigned id; /**< serial no. to identify geom progs, never re-used */ }; /** Subclass of Mesa fragment program */ struct brw_fragment_program { struct gl_fragment_program program; GLuint id; /**< serial no. to identify frag progs, never re-used */ }; struct brw_shader { struct gl_shader base; bool compiled_once; /** Shader IR transformed for native compile, at link time. */ struct exec_list *ir; }; /* Note: If adding fields that need anything besides a normal memcmp() for * comparing them, be sure to go fix the the stage-specific * prog_data_compare(). */ struct brw_stage_prog_data { struct { /** size of our binding table. */ uint32_t size_bytes; /** @{ * surface indices for the various groups of surfaces */ uint32_t pull_constants_start; uint32_t texture_start; uint32_t gather_texture_start; uint32_t ubo_start; uint32_t abo_start; uint32_t shader_time_start; /** @} */ } binding_table; }; /* 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. * * Note: brw_wm_prog_data_compare() must be updated when adding fields to this * struct! */ struct brw_wm_prog_data { struct brw_stage_prog_data base; GLuint curb_read_length; GLuint num_varying_inputs; GLuint first_curbe_grf; GLuint first_curbe_grf_16; GLuint reg_blocks; GLuint reg_blocks_16; GLuint total_scratch; struct { /** @{ * surface indices the WM-specific surfaces */ uint32_t render_target_start; /** @} */ } binding_table; GLuint nr_params; /**< number of float params/constants */ GLuint nr_pull_params; bool dual_src_blend; bool uses_pos_offset; bool uses_omask; uint32_t prog_offset_16; /** * Mask of which interpolation modes are required by the fragment shader. * Used in hardware setup on gen6+. */ uint32_t barycentric_interp_modes; /** * Map from gl_varying_slot to the position within the FS setup data * payload where the varying's attribute vertex deltas should be delivered. * For varying slots that are not used by the FS, the value is -1. */ int urb_setup[VARYING_SLOT_MAX]; /* Pointers to tracked values (only valid once * _mesa_load_state_parameters has been called at runtime). * * These must be the last fields of the struct (see * brw_wm_prog_data_compare()). */ const float **param; const float **pull_param; }; /** * Enum representing the i965-specific vertex results that don't correspond * exactly to any element of gl_varying_slot. The values of this enum are * assigned such that they don't conflict with gl_varying_slot. */ typedef enum { BRW_VARYING_SLOT_NDC = VARYING_SLOT_MAX, BRW_VARYING_SLOT_PAD, /** * Technically this is not a varying but just a placeholder that * compile_sf_prog() inserts into its VUE map to cause the gl_PointCoord * builtin variable to be compiled correctly. see compile_sf_prog() for * more info. */ BRW_VARYING_SLOT_PNTC, BRW_VARYING_SLOT_COUNT } brw_varying_slot; /** * Data structure recording the relationship between the gl_varying_slot enum * and "slots" within the vertex URB entry (VUE). A "slot" is defined as a * single octaword within the VUE (128 bits). * * Note that each BRW register contains 256 bits (2 octawords), so when * accessing the VUE in URB_NOSWIZZLE mode, each register corresponds to two * consecutive VUE slots. When accessing the VUE in URB_INTERLEAVED mode (as * in a vertex shader), each register corresponds to a single VUE slot, since * it contains data for two separate vertices. */ struct brw_vue_map { /** * Bitfield representing all varying slots that are (a) stored in this VUE * map, and (b) actually written by the shader. Does not include any of * the additional varying slots defined in brw_varying_slot. */ GLbitfield64 slots_valid; /** * Map from gl_varying_slot value to VUE slot. For gl_varying_slots that are * not stored in a slot (because they are not written, or because * additional processing is applied before storing them in the VUE), the * value is -1. */ signed char varying_to_slot[BRW_VARYING_SLOT_COUNT]; /** * Map from VUE slot to gl_varying_slot value. For slots that do not * directly correspond to a gl_varying_slot, the value comes from * brw_varying_slot. * * For slots that are not in use, the value is BRW_VARYING_SLOT_COUNT (this * simplifies code that uses the value stored in slot_to_varying to * create a bit mask). */ signed char slot_to_varying[BRW_VARYING_SLOT_COUNT]; /** * Total number of VUE slots in use */ int num_slots; }; /** * Convert a VUE slot number into a byte offset within the VUE. */ static inline GLuint brw_vue_slot_to_offset(GLuint slot) { return 16*slot; } /** * Convert a vertex output (brw_varying_slot) into a byte offset within the * VUE. */ static inline GLuint brw_varying_to_offset(struct brw_vue_map *vue_map, GLuint varying) { return brw_vue_slot_to_offset(vue_map->varying_to_slot[varying]); } void brw_compute_vue_map(struct brw_context *brw, struct brw_vue_map *vue_map, GLbitfield64 slots_valid); /** * Bitmask indicating which fragment shader inputs represent varyings (and * hence have to be delivered to the fragment shader by the SF/SBE stage). */ #define BRW_FS_VARYING_INPUT_MASK \ (BITFIELD64_RANGE(0, VARYING_SLOT_MAX) & \ ~VARYING_BIT_POS & ~VARYING_BIT_FACE) /* * Mapping of VUE map slots to interpolation modes. */ struct interpolation_mode_map { unsigned char mode[BRW_VARYING_SLOT_COUNT]; }; static inline bool brw_any_flat_varyings(struct interpolation_mode_map *map) { for (int i = 0; i < BRW_VARYING_SLOT_COUNT; i++) if (map->mode[i] == INTERP_QUALIFIER_FLAT) return true; return false; } static inline bool brw_any_noperspective_varyings(struct interpolation_mode_map *map) { for (int i = 0; i < BRW_VARYING_SLOT_COUNT; i++) if (map->mode[i] == INTERP_QUALIFIER_NOPERSPECTIVE) return true; return false; } 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; }; /** * We always program SF to start reading at an offset of 1 (2 varying slots) * from the start of the vertex URB entry. This causes it to skip: * - VARYING_SLOT_PSIZ and BRW_VARYING_SLOT_NDC on gen4-5 * - VARYING_SLOT_PSIZ and VARYING_SLOT_POS on gen6+ */ #define BRW_SF_URB_ENTRY_READ_OFFSET 1 struct brw_clip_prog_data { GLuint curb_read_length; /* user planes? */ GLuint clip_mode; GLuint urb_read_length; GLuint total_grf; }; struct brw_ff_gs_prog_data { GLuint urb_read_length; GLuint total_grf; /** * Gen6 transform feedback: Amount by which the streaming vertex buffer * indices should be incremented each time the GS is invoked. */ unsigned svbi_postincrement_value; }; /* Note: brw_vec4_prog_data_compare() must be updated when adding fields to * this struct! */ struct brw_vec4_prog_data { struct brw_stage_prog_data base; struct brw_vue_map vue_map; /** * Register where the thread expects to find input data from the URB * (typically uniforms, followed by per-vertex inputs). */ unsigned dispatch_grf_start_reg; GLuint curb_read_length; GLuint urb_read_length; GLuint total_grf; GLuint nr_params; /**< number of float params/constants */ GLuint nr_pull_params; /**< number of dwords referenced by pull_param[] */ GLuint total_scratch; /* Used for calculating urb partitions. In the VS, this is the size of the * URB entry used for both input and output to the thread. In the GS, this * is the size of the URB entry used for output. */ GLuint urb_entry_size; /* These pointers must appear last. See brw_vec4_prog_data_compare(). */ const float **param; const float **pull_param; }; /* Note: brw_vs_prog_data_compare() must be updated when adding fields to this * struct! */ struct brw_vs_prog_data { struct brw_vec4_prog_data base; GLbitfield64 inputs_read; bool uses_vertexid; }; /* Note: brw_gs_prog_data_compare() must be updated when adding fields to * this struct! */ struct brw_gs_prog_data { struct brw_vec4_prog_data base; /** * Size of an output vertex, measured in HWORDS (32 bytes). */ unsigned output_vertex_size_hwords; unsigned output_topology; /** * Size of the control data (cut bits or StreamID bits), in hwords (32 * bytes). 0 if there is no control data. */ unsigned control_data_header_size_hwords; /** * Format of the control data (either GEN7_GS_CONTROL_DATA_FORMAT_GSCTL_SID * if the control data is StreamID bits, or * GEN7_GS_CONTROL_DATA_FORMAT_GSCTL_CUT if the control data is cut bits). * Ignored if control_data_header_size is 0. */ unsigned control_data_format; bool include_primitive_id; /** * True if the thread should be dispatched in DUAL_INSTANCE mode, false if * it should be dispatched in DUAL_OBJECT mode. */ bool dual_instanced_dispatch; }; /** Number of texture sampler units */ #define BRW_MAX_TEX_UNIT 16 /** Max number of render targets in a shader */ #define BRW_MAX_DRAW_BUFFERS 8 /** Max number of atomic counter buffer objects in a shader */ #define BRW_MAX_ABO 16 /** * Max number of binding table entries used for stream output. * * From the OpenGL 3.0 spec, table 6.44 (Transform Feedback State), the * minimum value of MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS is 64. * * On Gen6, the size of transform feedback data is limited not by the number * of components but by the number of binding table entries we set aside. We * use one binding table entry for a float, one entry for a vector, and one * entry per matrix column. Since the only way we can communicate our * transform feedback capabilities to the client is via * MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS, we need to plan for the * worst case, in which all the varyings are floats, so we use up one binding * table entry per component. Therefore we need to set aside at least 64 * binding table entries for use by transform feedback. * * Note: since we don't currently pack varyings, it is currently impossible * for the client to actually use up all of these binding table entries--if * all of their varyings were floats, they would run out of varying slots and * fail to link. But that's a bug, so it seems prudent to go ahead and * allocate the number of binding table entries we will need once the bug is * fixed. */ #define BRW_MAX_SOL_BINDINGS 64 /** Maximum number of actual buffers used for stream output */ #define BRW_MAX_SOL_BUFFERS 4 #define BRW_MAX_SURFACES (BRW_MAX_DRAW_BUFFERS + \ BRW_MAX_TEX_UNIT * 2 + /* normal, gather */ \ 12 + /* ubo */ \ BRW_MAX_ABO + \ 2 /* shader time, pull constants */) #define SURF_INDEX_GEN6_SOL_BINDING(t) (t) #define BRW_MAX_GEN6_GS_SURFACES SURF_INDEX_GEN6_SOL_BINDING(BRW_MAX_SOL_BINDINGS) /** * Stride in bytes between shader_time entries. * * We separate entries by a cacheline to reduce traffic between EUs writing to * different entries. */ #define SHADER_TIME_STRIDE 64 enum brw_cache_id { BRW_CC_VP, BRW_CC_UNIT, BRW_WM_PROG, BRW_BLORP_BLIT_PROG, BRW_BLORP_CONST_COLOR_PROG, BRW_SAMPLER, BRW_WM_UNIT, BRW_SF_PROG, BRW_SF_VP, BRW_SF_UNIT, /* scissor state on gen6 */ BRW_VS_UNIT, BRW_VS_PROG, BRW_FF_GS_UNIT, BRW_FF_GS_PROG, BRW_GS_PROG, BRW_CLIP_VP, BRW_CLIP_UNIT, BRW_CLIP_PROG, 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 */ GLuint aux_size; const void *key; uint32_t offset; uint32_t size; struct brw_cache_item *next; }; typedef bool (*cache_aux_compare_func)(const void *a, const void *b); typedef void (*cache_aux_free_func)(const void *aux); struct brw_cache { struct brw_context *brw; struct brw_cache_item **items; drm_intel_bo *bo; GLuint size, n_items; uint32_t next_offset; bool bo_used_by_gpu; /** * Optional functions used in determining whether the prog_data for a new * cache item matches an existing cache item (in case there's relevant data * outside of the prog_data). If NULL, a plain memcmp is done. */ cache_aux_compare_func aux_compare[BRW_MAX_CACHE]; /** Optional functions for freeing other pointers attached to a prog_data. */ cache_aux_free_func aux_free[BRW_MAX_CACHE]; }; /* 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 (*emit)( struct brw_context *brw ); }; enum shader_time_shader_type { ST_NONE, ST_VS, ST_VS_WRITTEN, ST_VS_RESET, ST_FS8, ST_FS8_WRITTEN, ST_FS8_RESET, ST_FS16, ST_FS16_WRITTEN, ST_FS16_RESET, }; /* Flags for brw->state.cache. */ #define CACHE_NEW_CC_VP (1<gen >= 5) { /* Using state base address. */ return prog_offset; } drm_intel_bo_emit_reloc(brw->batch.bo, state_offset, brw->cache.bo, prog_offset, I915_GEM_DOMAIN_INSTRUCTION, 0); return brw->cache.bo->offset + prog_offset; } bool brw_do_cubemap_normalize(struct exec_list *instructions); bool brw_lower_texture_gradients(struct brw_context *brw, struct exec_list *instructions); bool brw_do_lower_offset_arrays(struct exec_list *instructions); bool brw_do_lower_unnormalized_offset(struct exec_list *instructions); struct opcode_desc { char *name; int nsrc; int ndst; }; extern const struct opcode_desc opcode_descs[128]; extern const char * const conditional_modifier[16]; extern const char * const reg_encoding[8]; void brw_emit_depthbuffer(struct brw_context *brw); void brw_emit_depth_stencil_hiz(struct brw_context *brw, struct intel_mipmap_tree *depth_mt, uint32_t depth_offset, uint32_t depthbuffer_format, uint32_t depth_surface_type, struct intel_mipmap_tree *stencil_mt, bool hiz, bool separate_stencil, uint32_t width, uint32_t height, uint32_t tile_x, uint32_t tile_y); void gen7_emit_depth_stencil_hiz(struct brw_context *brw, struct intel_mipmap_tree *depth_mt, uint32_t depth_offset, uint32_t depthbuffer_format, uint32_t depth_surface_type, struct intel_mipmap_tree *stencil_mt, bool hiz, bool separate_stencil, uint32_t width, uint32_t height, uint32_t tile_x, uint32_t tile_y); extern const GLuint prim_to_hw_prim[GL_TRIANGLE_STRIP_ADJACENCY+1]; void brw_setup_vec4_key_clip_info(struct brw_context *brw, struct brw_vec4_prog_key *key, bool program_uses_clip_distance); void gen6_upload_vec4_push_constants(struct brw_context *brw, const struct gl_program *prog, const struct brw_vec4_prog_data *prog_data, struct brw_stage_state *stage_state, enum state_struct_type type); /* ================================================================ * From linux kernel i386 header files, copes with odd sizes better * than COPY_DWORDS would: * XXX Put this in src/mesa/main/imports.h ??? */ #if defined(i386) || defined(__i386__) static inline void * __memcpy(void * to, const void * from, size_t n) { int d0, d1, d2; __asm__ __volatile__( "rep ; movsl\n\t" "testb $2,%b4\n\t" "je 1f\n\t" "movsw\n" "1:\ttestb $1,%b4\n\t" "je 2f\n\t" "movsb\n" "2:" : "=&c" (d0), "=&D" (d1), "=&S" (d2) :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from) : "memory"); return (to); } #else #define __memcpy(a,b,c) memcpy(a,b,c) #endif #ifdef __cplusplus } #endif #endif