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_gmem_stateobj {
  83         struct pipe_scissor_state scissor;
  84         uint cpp;
  85         uint16_t minx, miny;
  86         uint16_t bin_h, nbins_y;
  87         uint16_t bin_w, nbins_x;
  88         uint16_t width, height;
  89 };
  90
  91 struct fd_context {
  92         struct pipe_context base;
  93
  94         struct fd_screen *screen;
  95         struct blitter_context *blitter;
  96
  97         struct util_slab_mempool transfer_pool;
  98
  99         /* shaders used by clear, and gmem->mem blits: */
 100         struct fd_program_stateobj solid_prog; // TODO move to screen?
 101
 102         /* shaders used by mem->gmem blits: */
 103         struct fd_program_stateobj blit_prog; // TODO move to screen?
 104
 105         /* vertex buff used for clear/gmem->mem vertices, and mem->gmem
 106          * vertices and tex coords:
 107          */
 108         struct pipe_resource *solid_vertexbuf;
 109
 110         /* do we need to mem2gmem before rendering.  We don't, if for example,
 111          * there was a glClear() that invalidated the entire previous buffer
 112          * contents.  Keep track of which buffer(s) are cleared, or needs
 113          * restore.  Masks of PIPE_CLEAR_*
 114          */
 115         enum {
 116                 /* align bitmask values w/ PIPE_CLEAR_*.. since that is convenient.. */
 117                 FD_BUFFER_COLOR   = PIPE_CLEAR_COLOR,
 118                 FD_BUFFER_DEPTH   = PIPE_CLEAR_DEPTH,
 119                 FD_BUFFER_STENCIL = PIPE_CLEAR_STENCIL,
 120                 FD_BUFFER_ALL     = FD_BUFFER_COLOR | FD_BUFFER_DEPTH | FD_BUFFER_STENCIL,
 121         } cleared, restore, resolve;
 122
 123         bool needs_flush;
 124
 125         struct fd_ringbuffer *ring;
 126         struct fd_ringmarker *draw_start, *draw_end;
 127
 128         /* scissor can't really be changed mid-render.. we probably need
 129          * to flush out all pending draws and then start a new tile pass
 130          * w/ new stencil state..
 131          */
 132         struct pipe_scissor_state scissor;
 133
 134         /* Track the maximal bounds of the scissor of all the draws within a
 135          * batch.  Used at the tile rendering step (fd_gmem_render_tiles(),
 136          * mem2gmem/gmem2mem) to avoid needlessly moving data in/out of gmem.
 137          */
 138         struct pipe_scissor_state max_scissor;
 139
 140         /* Current gmem/tiling configuration.. gets updated on render_tiles()
 141          * if out of date with current maximal-scissor/cpp:
 142          */
 143         struct fd_gmem_stateobj gmem;
 144
 145         /* which state objects need to be re-emit'd: */
 146         enum {
 147                 FD_DIRTY_BLEND       = (1 <<  0),
 148                 FD_DIRTY_RASTERIZER  = (1 <<  1),
 149                 FD_DIRTY_ZSA         = (1 <<  2),
 150                 FD_DIRTY_FRAGTEX     = (1 <<  3),
 151                 FD_DIRTY_VERTTEX     = (1 <<  4),
 152                 FD_DIRTY_TEXSTATE    = (1 <<  5),
 153                 FD_DIRTY_PROG        = (1 <<  6),
 154                 FD_DIRTY_BLEND_COLOR = (1 <<  7),
 155                 FD_DIRTY_STENCIL_REF = (1 <<  8),
 156                 FD_DIRTY_SAMPLE_MASK = (1 <<  9),
 157                 FD_DIRTY_FRAMEBUFFER = (1 << 10),
 158                 FD_DIRTY_STIPPLE     = (1 << 11),
 159                 FD_DIRTY_VIEWPORT    = (1 << 12),
 160                 FD_DIRTY_CONSTBUF    = (1 << 13),
 161                 FD_DIRTY_VTXSTATE    = (1 << 14),
 162                 FD_DIRTY_VTXBUF      = (1 << 15),
 163                 FD_DIRTY_INDEXBUF    = (1 << 16),
 164                 FD_DIRTY_SCISSOR     = (1 << 17),
 165         } dirty;
 166
 167         struct fd_blend_stateobj *blend;
 168         struct fd_rasterizer_stateobj *rasterizer;
 169         struct fd_zsa_stateobj *zsa;
 170
 171         struct fd_texture_stateobj verttex, fragtex;
 172
 173         struct fd_program_stateobj prog;
 174
 175         struct fd_vertex_stateobj *vtx;
 176
 177         struct pipe_blend_color blend_color;
 178         struct pipe_stencil_ref stencil_ref;
 179         unsigned sample_mask;
 180         struct pipe_framebuffer_state framebuffer;
 181         struct pipe_poly_stipple stipple;
 182         struct pipe_viewport_state viewport;
 183         struct fd_constbuf_stateobj constbuf[PIPE_SHADER_TYPES];
 184         struct fd_vertexbuf_stateobj vertexbuf;
 185         struct pipe_index_buffer indexbuf;
 186 };
 187
 188 static INLINE struct fd_context *
 189 fd_context(struct pipe_context *pctx)
 190 {
 191         return (struct fd_context *)pctx;
 192 }
 193
 194 struct pipe_context * fd_context_create(struct pipe_screen *pscreen, void *priv);
 195
 196 void fd_context_render(struct pipe_context *pctx);
 197
 198 #endif /* FREEDRENO_CONTEXT_H_ */