src/gallium/drivers/vc4/vc4_context.h

   1 /*
   2  * Copyright © 2014 Broadcom
   3  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  22  * IN THE SOFTWARE.
  23  */
  24
  25 #ifndef VC4_CONTEXT_H
  26 #define VC4_CONTEXT_H
  27
  28 #include "pipe/p_context.h"
  29 #include "pipe/p_state.h"
  30 #include "util/u_slab.h"
  31
  32 #include "vc4_bufmgr.h"
  33 #include "vc4_resource.h"
  34 #include "vc4_cl.h"
  35 #include "vc4_qir.h"
  36
  37 #define VC4_DIRTY_BLEND         (1 <<  0)
  38 #define VC4_DIRTY_RASTERIZER    (1 <<  1)
  39 #define VC4_DIRTY_ZSA           (1 <<  2)
  40 #define VC4_DIRTY_FRAGTEX       (1 <<  3)
  41 #define VC4_DIRTY_VERTTEX       (1 <<  4)
  42 #define VC4_DIRTY_TEXSTATE      (1 <<  5)
  43 #define VC4_DIRTY_PROG          (1 <<  6)
  44 #define VC4_DIRTY_BLEND_COLOR   (1 <<  7)
  45 #define VC4_DIRTY_STENCIL_REF   (1 <<  8)
  46 #define VC4_DIRTY_SAMPLE_MASK   (1 <<  9)
  47 #define VC4_DIRTY_FRAMEBUFFER   (1 << 10)
  48 #define VC4_DIRTY_STIPPLE       (1 << 11)
  49 #define VC4_DIRTY_VIEWPORT      (1 << 12)
  50 #define VC4_DIRTY_CONSTBUF      (1 << 13)
  51 #define VC4_DIRTY_VTXSTATE      (1 << 14)
  52 #define VC4_DIRTY_VTXBUF        (1 << 15)
  53 #define VC4_DIRTY_INDEXBUF      (1 << 16)
  54 #define VC4_DIRTY_SCISSOR       (1 << 17)
  55
  56 #define VC4_SHADER_DIRTY_VP     (1 << 0)
  57 #define VC4_SHADER_DIRTY_FP     (1 << 1)
  58
  59 struct vc4_texture_stateobj {
  60         struct pipe_sampler_view *textures[PIPE_MAX_SAMPLERS];
  61         unsigned num_textures;
  62         struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];
  63         unsigned num_samplers;
  64         unsigned dirty_samplers;
  65 };
  66
  67 struct vc4_shader_uniform_info {
  68         enum quniform_contents *contents;
  69         uint32_t *data;
  70         uint32_t count;
  71 };
  72
  73 struct vc4_shader_state {
  74         struct pipe_shader_state base;
  75 };
  76
  77 struct vc4_compiled_shader {
  78         struct vc4_bo *bo;
  79
  80         struct vc4_shader_uniform_info uniforms[2];
  81
  82         uint32_t coord_shader_offset;
  83         uint8_t num_inputs;
  84 };
  85
  86 struct vc4_program_stateobj {
  87         struct vc4_shader_state *bind_vs, *bind_fs;
  88         struct vc4_compiled_shader *vs, *fs;
  89         uint32_t dirty;
  90         uint8_t num_exports;
  91         /* Indexed by semantic name or TGSI_SEMANTIC_COUNT + semantic index
  92          * for TGSI_SEMANTIC_GENERIC.  Special vs exports (position and point-
  93          * size) are not included in this
  94          */
  95         uint8_t export_linkage[63];
  96 };
  97
  98 struct vc4_constbuf_stateobj {
  99         struct pipe_constant_buffer cb[PIPE_MAX_CONSTANT_BUFFERS];
 100         uint32_t enabled_mask;
 101         uint32_t dirty_mask;
 102 };
 103
 104 struct vc4_vertexbuf_stateobj {
 105         struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
 106         unsigned count;
 107         uint32_t enabled_mask;
 108         uint32_t dirty_mask;
 109 };
 110
 111 struct vc4_vertex_stateobj {
 112         struct pipe_vertex_element pipe[PIPE_MAX_ATTRIBS];
 113         unsigned num_elements;
 114 };
 115
 116 struct vc4_context {
 117         struct pipe_context base;
 118
 119         int fd;
 120         struct vc4_screen *screen;
 121
 122         struct vc4_cl bcl;
 123         struct vc4_cl rcl;
 124         struct vc4_cl shader_rec;
 125         struct vc4_cl bo_handles;
 126         uint32_t shader_rec_count;
 127
 128         struct vc4_bo *tile_alloc;
 129         struct vc4_bo *tile_state;
 130
 131         struct util_slab_mempool transfer_pool;
 132         struct blitter_context *blitter;
 133
 134         /** bitfield of VC4_DIRTY_* */
 135         uint32_t dirty;
 136
 137         /**
 138          * Set if some drawing (triangles, blits, or just a glClear()) has
 139          * been done to the FBO, meaning that we need to
 140          * DRM_IOCTL_VC4_SUBMIT_CL.
 141          */
 142         bool needs_flush;
 143
 144         struct primconvert_context *primconvert;
 145
 146         struct util_hash_table *fs_cache, *vs_cache;
 147
 148         /** @{ Current pipeline state objects */
 149         struct pipe_scissor_state scissor;
 150         struct pipe_blend_state *blend;
 151         struct vc4_rasterizer_state *rasterizer;
 152         struct pipe_depth_stencil_alpha_state *zsa;
 153
 154         struct vc4_texture_stateobj verttex, fragtex;
 155
 156         struct vc4_program_stateobj prog;
 157
 158         struct vc4_vertex_stateobj *vtx;
 159
 160         struct pipe_blend_color blend_color;
 161         struct pipe_stencil_ref stencil_ref;
 162         unsigned sample_mask;
 163         struct pipe_framebuffer_state framebuffer;
 164         struct pipe_poly_stipple stipple;
 165         struct pipe_viewport_state viewport;
 166         struct vc4_constbuf_stateobj constbuf[PIPE_SHADER_TYPES];
 167         struct vc4_vertexbuf_stateobj vertexbuf;
 168         struct pipe_index_buffer indexbuf;
 169         /** @} */
 170 };
 171
 172 struct vc4_rasterizer_state {
 173         struct pipe_rasterizer_state base;
 174
 175         /* VC4_CONFIGURATION_BITS */
 176         uint8_t config_bits[3];
 177
 178         float point_size;
 179 };
 180
 181 static inline struct vc4_context *
 182 vc4_context(struct pipe_context *pcontext)
 183 {
 184         return (struct vc4_context *)pcontext;
 185 }
 186
 187 struct pipe_context *vc4_context_create(struct pipe_screen *pscreen,
 188                                         void *priv);
 189 void vc4_draw_init(struct pipe_context *pctx);
 190 void vc4_state_init(struct pipe_context *pctx);
 191 void vc4_program_init(struct pipe_context *pctx);
 192 void vc4_simulator_init(struct vc4_screen *screen);
 193 void vc4_simulator_flush(struct vc4_context *vc4,
 194                          struct vc4_surface *color_surf);
 195 void *vc4_simulator_alloc(struct vc4_screen *screen, uint32_t size);
 196
 197 void vc4_get_uniform_bo(struct vc4_context *vc4,
 198                         struct vc4_compiled_shader *shader,
 199                         struct vc4_constbuf_stateobj *cb,
 200                         struct vc4_texture_stateobj *texstate,
 201                         int shader_index, struct vc4_bo **out_bo,
 202                         uint32_t *out_offset);
 203
 204 void vc4_flush(struct pipe_context *pctx);
 205 void vc4_emit_state(struct pipe_context *pctx);
 206 void vc4_generate_code(struct qcompile *c);
 207 void vc4_update_compiled_shaders(struct vc4_context *vc4);
 208
 209 #endif /* VC4_CONTEXT_H */