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
  36 #define VC4_DIRTY_BLEND         (1 <<  0)
  37 #define VC4_DIRTY_RASTERIZER    (1 <<  1)
  38 #define VC4_DIRTY_ZSA           (1 <<  2)
  39 #define VC4_DIRTY_FRAGTEX       (1 <<  3)
  40 #define VC4_DIRTY_VERTTEX       (1 <<  4)
  41 #define VC4_DIRTY_TEXSTATE      (1 <<  5)
  42 #define VC4_DIRTY_PROG          (1 <<  6)
  43 #define VC4_DIRTY_BLEND_COLOR   (1 <<  7)
  44 #define VC4_DIRTY_STENCIL_REF   (1 <<  8)
  45 #define VC4_DIRTY_SAMPLE_MASK   (1 <<  9)
  46 #define VC4_DIRTY_FRAMEBUFFER   (1 << 10)
  47 #define VC4_DIRTY_STIPPLE       (1 << 11)
  48 #define VC4_DIRTY_VIEWPORT      (1 << 12)
  49 #define VC4_DIRTY_CONSTBUF      (1 << 13)
  50 #define VC4_DIRTY_VTXSTATE      (1 << 14)
  51 #define VC4_DIRTY_VTXBUF        (1 << 15)
  52 #define VC4_DIRTY_INDEXBUF      (1 << 16)
  53 #define VC4_DIRTY_SCISSOR       (1 << 17)
  54
  55 #define VC4_SHADER_DIRTY_VP     (1 << 0)
  56 #define VC4_SHADER_DIRTY_FP     (1 << 1)
  57
  58 struct vc4_texture_stateobj {
  59         struct pipe_sampler_view *textures[PIPE_MAX_SAMPLERS];
  60         unsigned num_textures;
  61         struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];
  62         unsigned num_samplers;
  63         unsigned dirty_samplers;
  64 };
  65
  66 struct vc4_shader_state {
  67         struct pipe_shader_state base;
  68         struct vc4_bo *bo;
  69
  70         uint32_t coord_shader_offset;
  71 };
  72
  73 struct vc4_program_stateobj {
  74         struct vc4_shader_state *vs, *fs;
  75         uint32_t dirty;
  76         uint8_t num_exports;
  77         /* Indexed by semantic name or TGSI_SEMANTIC_COUNT + semantic index
  78          * for TGSI_SEMANTIC_GENERIC.  Special vs exports (position and point-
  79          * size) are not included in this
  80          */
  81         uint8_t export_linkage[63];
  82 };
  83
  84 struct vc4_constbuf_stateobj {
  85         struct pipe_constant_buffer cb[PIPE_MAX_CONSTANT_BUFFERS];
  86         uint32_t enabled_mask;
  87         uint32_t dirty_mask;
  88 };
  89
  90 struct vc4_vertexbuf_stateobj {
  91         struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
  92         unsigned count;
  93         uint32_t enabled_mask;
  94         uint32_t dirty_mask;
  95 };
  96
  97 struct vc4_vertex_stateobj {
  98         struct pipe_vertex_element pipe[PIPE_MAX_ATTRIBS];
  99         unsigned num_elements;
 100 };
 101
 102 struct vc4_context {
 103         struct pipe_context base;
 104
 105         int fd;
 106         struct vc4_screen *screen;
 107
 108         struct vc4_cl bcl;
 109         struct vc4_cl rcl;
 110         struct vc4_cl shader_rec;
 111         struct vc4_cl bo_handles;
 112         uint32_t shader_rec_count;
 113
 114         struct util_slab_mempool transfer_pool;
 115         struct blitter_context *blitter;
 116
 117         /** bitfield of VC4_DIRTY_* */
 118         uint32_t dirty;
 119
 120         /**
 121          * Set if some drawing (triangles, blits, or just a glClear()) has
 122          * been done to the FBO, meaning that we need to
 123          * DRM_IOCTL_VC4_SUBMIT_CL.
 124          */
 125         bool needs_flush;
 126
 127         /** @{ Current pipeline state objects */
 128         struct pipe_scissor_state scissor;
 129         struct pipe_blend_state *blend;
 130         struct vc4_rasterizer_state *rasterizer;
 131         struct pipe_depth_stencil_alpha_state *zsa;
 132
 133         struct vc4_texture_stateobj verttex, fragtex;
 134
 135         struct vc4_program_stateobj prog;
 136
 137         struct vc4_vertex_stateobj *vtx;
 138
 139         struct pipe_blend_color blend_color;
 140         struct pipe_stencil_ref stencil_ref;
 141         unsigned sample_mask;
 142         struct pipe_framebuffer_state framebuffer;
 143         struct pipe_poly_stipple stipple;
 144         struct pipe_viewport_state viewport;
 145         struct vc4_constbuf_stateobj constbuf[PIPE_SHADER_TYPES];
 146         struct vc4_vertexbuf_stateobj vertexbuf;
 147         struct pipe_index_buffer indexbuf;
 148         /** @} */
 149 };
 150
 151 struct vc4_rasterizer_state {
 152         struct pipe_rasterizer_state base;
 153
 154         /* VC4_CONFIGURATION_BITS */
 155         uint8_t config_bits[3];
 156
 157         float point_size;
 158 };
 159
 160 static inline struct vc4_context *
 161 vc4_context(struct pipe_context *pcontext)
 162 {
 163         return (struct vc4_context *)pcontext;
 164 }
 165
 166 struct pipe_context *vc4_context_create(struct pipe_screen *pscreen,
 167                                         void *priv);
 168 void vc4_draw_init(struct pipe_context *pctx);
 169 void vc4_state_init(struct pipe_context *pctx);
 170 void vc4_program_init(struct pipe_context *pctx);
 171 void vc4_simulator_init(struct vc4_screen *screen);
 172 void vc4_simulator_flush(struct vc4_context *vc4,
 173                          struct vc4_surface *color_surf);
 174 void *vc4_simulator_alloc(struct vc4_screen *screen, uint32_t size);
 175
 176 void vc4_flush(struct pipe_context *pctx);
 177 void vc4_emit_state(struct pipe_context *pctx);
 178
 179 #endif /* VC4_CONTEXT_H */