src/gallium/drivers/freedreno/freedreno_context.h

   1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
   2
   3 /*
   4  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  *
  25  * Authors:
  26  *    Rob Clark <robclark@freedesktop.org>
  27  */
  28
  29 #ifndef FREEDRENO_CONTEXT_H_
  30 #define FREEDRENO_CONTEXT_H_
  31
  32 #include "draw/draw_context.h"
  33 #include "pipe/p_context.h"
  34 #include "util/u_blitter.h"
  35 #include "util/u_slab.h"
  36 #include "util/u_string.h"
  37
  38 #include "freedreno_screen.h"
  39
  40 struct fd_blend_stateobj;
  41 struct fd_rasterizer_stateobj;
  42 struct fd_zsa_stateobj;
  43 struct fd_sampler_stateobj;
  44 struct fd_vertex_stateobj;
  45 struct fd_shader_stateobj;
  46
  47 struct fd_texture_stateobj {
  48         struct pipe_sampler_view *textures[PIPE_MAX_SAMPLERS];
  49         unsigned num_textures;
  50         struct fd_sampler_stateobj *samplers[PIPE_MAX_SAMPLERS];
  51         unsigned num_samplers;
  52         unsigned dirty_samplers;
  53 };
  54
  55 struct fd_program_stateobj {
  56         struct fd_shader_stateobj *vp, *fp;
  57         enum {
  58                 FD_SHADER_DIRTY_VP = (1 << 0),
  59                 FD_SHADER_DIRTY_FP = (1 << 1),
  60         } dirty;
  61         uint8_t num_exports;
  62         /* Indexed by semantic name or TGSI_SEMANTIC_COUNT + semantic index
  63          * for TGSI_SEMANTIC_GENERIC.  Special vs exports (position and point-
  64          * size) are not included in this
  65          */
  66         uint8_t export_linkage[63];
  67 };
  68
  69 struct fd_constbuf_stateobj {
  70         struct pipe_constant_buffer cb[PIPE_MAX_CONSTANT_BUFFERS];
  71         uint32_t enabled_mask;
  72         uint32_t dirty_mask;
  73 };
  74
  75 struct fd_vertexbuf_stateobj {
  76         struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
  77         unsigned count;
  78         uint32_t enabled_mask;
  79         uint32_t dirty_mask;
  80 };
  81
  82 struct fd_framebuffer_stateobj {
  83         struct pipe_framebuffer_state base;
  84         uint16_t bin_h, nbins_y;
  85         uint16_t bin_w, nbins_x;
  86         uint32_t pa_su_sc_mode_cntl;
  87 };
  88
  89 struct fd_context {
  90         struct pipe_context base;
  91
  92         struct fd_screen *screen;
  93         struct blitter_context *blitter;
  94
  95         struct util_slab_mempool transfer_pool;
  96
  97         /* shaders used by clear, and gmem->mem blits: */
  98         struct fd_program_stateobj solid_prog; // TODO move to screen?
  99
 100         /* shaders used by mem->gmem blits: */
 101         struct fd_program_stateobj blit_prog; // TODO move to screen?
 102
 103         /* vertex buff used for clear/gmem->mem vertices, and mem->gmem
 104          * vertices and tex coords:
 105          */
 106         struct pipe_resource *solid_vertexbuf;
 107
 108         /* do we need to mem2gmem before rendering.  We don't, if for example,
 109          * there was a glClear() that invalidated the entire previous buffer
 110          * contents.  Keep track of which buffer(s) are cleared, or needs
 111          * restore.  Masks of PIPE_CLEAR_*
 112          */
 113         enum {
 114                 /* align bitmask values w/ PIPE_CLEAR_*.. since that is convenient.. */
 115                 FD_BUFFER_COLOR   = PIPE_CLEAR_COLOR,
 116                 FD_BUFFER_DEPTH   = PIPE_CLEAR_DEPTH,
 117                 FD_BUFFER_STENCIL = PIPE_CLEAR_STENCIL,
 118                 FD_BUFFER_ALL     = FD_BUFFER_COLOR | FD_BUFFER_DEPTH | FD_BUFFER_STENCIL,
 119         } cleared, restore, resolve;
 120
 121         bool needs_flush;
 122
 123         struct fd_ringbuffer *ring;
 124         struct fd_ringmarker *draw_start, *draw_end;
 125
 126         /* scissor can't really be changed mid-render.. we probably need
 127          * to flush out all pending draws and then start a new tile pass
 128          * w/ new stencil state..
 129          */
 130         struct pipe_scissor_state scissor;
 131
 132         /* which state objects need to be re-emit'd: */
 133         enum {
 134                 FD_DIRTY_BLEND       = (1 << 0),
 135                 FD_DIRTY_RASTERIZER  = (1 << 1),
 136                 FD_DIRTY_ZSA         = (1 << 2),
 137                 FD_DIRTY_FRAGTEX     = (1 << 3),
 138                 FD_DIRTY_VERTTEX     = (1 << 4),
 139                 FD_DIRTY_PROG        = (1 << 5),
 140                 FD_DIRTY_VTX         = (1 << 6),
 141                 FD_DIRTY_BLEND_COLOR = (1 << 7),
 142                 FD_DIRTY_STENCIL_REF = (1 << 8),
 143                 FD_DIRTY_SAMPLE_MASK = (1 << 9),
 144                 FD_DIRTY_FRAMEBUFFER = (1 << 10),
 145                 FD_DIRTY_STIPPLE     = (1 << 12),
 146                 FD_DIRTY_VIEWPORT    = (1 << 12),
 147                 FD_DIRTY_CONSTBUF    = (1 << 13),
 148                 FD_DIRTY_VERTEXBUF   = (1 << 14),
 149                 FD_DIRTY_INDEXBUF    = (1 << 15),
 150                 FD_DIRTY_SCISSOR     = (1 << 16),
 151         } dirty;
 152
 153         struct fd_blend_stateobj *blend;
 154         struct fd_rasterizer_stateobj *rasterizer;
 155         struct fd_zsa_stateobj *zsa;
 156
 157         struct fd_texture_stateobj verttex, fragtex;
 158
 159         struct fd_program_stateobj prog;
 160
 161         struct fd_vertex_stateobj *vtx;
 162
 163         struct pipe_blend_color blend_color;
 164         struct pipe_stencil_ref stencil_ref;
 165         unsigned sample_mask;
 166         struct fd_framebuffer_stateobj framebuffer;
 167         struct pipe_poly_stipple stipple;
 168         struct pipe_viewport_state viewport;
 169         struct fd_constbuf_stateobj constbuf[PIPE_SHADER_TYPES];
 170         struct fd_vertexbuf_stateobj vertexbuf;
 171         struct pipe_index_buffer indexbuf;
 172 };
 173
 174 static INLINE struct fd_context *
 175 fd_context(struct pipe_context *pctx)
 176 {
 177         return (struct fd_context *)pctx;
 178 }
 179
 180 struct pipe_context * fd_context_create(struct pipe_screen *pscreen, void *priv);
 181
 182 void fd_context_render(struct pipe_context *pctx);
 183
 184 #endif /* FREEDRENO_CONTEXT_H_ */