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_vertex_stateobj;
  41
  42 struct fd_texture_stateobj {
  43         struct pipe_sampler_view *textures[PIPE_MAX_SAMPLERS];
  44         unsigned num_textures;
  45         struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];
  46         unsigned num_samplers;
  47         unsigned dirty_samplers;
  48 };
  49
  50 struct fd_program_stateobj {
  51         void *vp, *fp;
  52         enum {
  53                 FD_SHADER_DIRTY_VP = (1 << 0),
  54                 FD_SHADER_DIRTY_FP = (1 << 1),
  55         } dirty;
  56         uint8_t num_exports;
  57         /* Indexed by semantic name or TGSI_SEMANTIC_COUNT + semantic index
  58          * for TGSI_SEMANTIC_GENERIC.  Special vs exports (position and point-
  59          * size) are not included in this
  60          */
  61         uint8_t export_linkage[63];
  62 };
  63
  64 struct fd_constbuf_stateobj {
  65         struct pipe_constant_buffer cb[PIPE_MAX_CONSTANT_BUFFERS];
  66         uint32_t enabled_mask;
  67         uint32_t dirty_mask;
  68 };
  69
  70 struct fd_vertexbuf_stateobj {
  71         struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
  72         unsigned count;
  73         uint32_t enabled_mask;
  74         uint32_t dirty_mask;
  75 };
  76
  77 struct fd_vertex_stateobj {
  78         struct pipe_vertex_element pipe[PIPE_MAX_ATTRIBS];
  79         unsigned num_elements;
  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         /* do we need to mem2gmem before rendering.  We don't, if for example,
 106          * there was a glClear() that invalidated the entire previous buffer
 107          * contents.  Keep track of which buffer(s) are cleared, or needs
 108          * restore.  Masks of PIPE_CLEAR_*
 109          */
 110         enum {
 111                 /* align bitmask values w/ PIPE_CLEAR_*.. since that is convenient.. */
 112                 FD_BUFFER_COLOR   = PIPE_CLEAR_COLOR,
 113                 FD_BUFFER_DEPTH   = PIPE_CLEAR_DEPTH,
 114                 FD_BUFFER_STENCIL = PIPE_CLEAR_STENCIL,
 115                 FD_BUFFER_ALL     = FD_BUFFER_COLOR | FD_BUFFER_DEPTH | FD_BUFFER_STENCIL,
 116         } cleared, restore, resolve;
 117
 118         bool needs_flush;
 119
 120         struct fd_ringbuffer *ring;
 121         struct fd_ringmarker *draw_start, *draw_end;
 122
 123         struct pipe_scissor_state scissor;
 124
 125         /* Track the maximal bounds of the scissor of all the draws within a
 126          * batch.  Used at the tile rendering step (fd_gmem_render_tiles(),
 127          * mem2gmem/gmem2mem) to avoid needlessly moving data in/out of gmem.
 128          */
 129         struct pipe_scissor_state max_scissor;
 130
 131         /* Current gmem/tiling configuration.. gets updated on render_tiles()
 132          * if out of date with current maximal-scissor/cpp:
 133          */
 134         struct fd_gmem_stateobj gmem;
 135
 136         /* which state objects need to be re-emit'd: */
 137         enum {
 138                 FD_DIRTY_BLEND       = (1 <<  0),
 139                 FD_DIRTY_RASTERIZER  = (1 <<  1),
 140                 FD_DIRTY_ZSA         = (1 <<  2),
 141                 FD_DIRTY_FRAGTEX     = (1 <<  3),
 142                 FD_DIRTY_VERTTEX     = (1 <<  4),
 143                 FD_DIRTY_TEXSTATE    = (1 <<  5),
 144                 FD_DIRTY_PROG        = (1 <<  6),
 145                 FD_DIRTY_BLEND_COLOR = (1 <<  7),
 146                 FD_DIRTY_STENCIL_REF = (1 <<  8),
 147                 FD_DIRTY_SAMPLE_MASK = (1 <<  9),
 148                 FD_DIRTY_FRAMEBUFFER = (1 << 10),
 149                 FD_DIRTY_STIPPLE     = (1 << 11),
 150                 FD_DIRTY_VIEWPORT    = (1 << 12),
 151                 FD_DIRTY_CONSTBUF    = (1 << 13),
 152                 FD_DIRTY_VTXSTATE    = (1 << 14),
 153                 FD_DIRTY_VTXBUF      = (1 << 15),
 154                 FD_DIRTY_INDEXBUF    = (1 << 16),
 155                 FD_DIRTY_SCISSOR     = (1 << 17),
 156         } dirty;
 157
 158         struct pipe_blend_state *blend;
 159         struct pipe_rasterizer_state *rasterizer;
 160         struct pipe_depth_stencil_alpha_state *zsa;
 161
 162         struct fd_texture_stateobj verttex, fragtex;
 163
 164         struct fd_program_stateobj prog;
 165
 166         struct fd_vertex_stateobj *vtx;
 167
 168         struct pipe_blend_color blend_color;
 169         struct pipe_stencil_ref stencil_ref;
 170         unsigned sample_mask;
 171         struct pipe_framebuffer_state framebuffer;
 172         struct pipe_poly_stipple stipple;
 173         struct pipe_viewport_state viewport;
 174         struct fd_constbuf_stateobj constbuf[PIPE_SHADER_TYPES];
 175         struct fd_vertexbuf_stateobj vertexbuf;
 176         struct pipe_index_buffer indexbuf;
 177
 178         /* GMEM/tile handling fxns: */
 179         void (*emit_tile_init)(struct fd_context *ctx);
 180         void (*emit_tile_prep)(struct fd_context *ctx, uint32_t xoff, uint32_t yoff,
 181                         uint32_t bin_w, uint32_t bin_h);
 182         void (*emit_tile_mem2gmem)(struct fd_context *ctx, uint32_t xoff, uint32_t yoff,
 183                         uint32_t bin_w, uint32_t bin_h);
 184         void (*emit_tile_renderprep)(struct fd_context *ctx, uint32_t xoff, uint32_t yoff,
 185                         uint32_t bin_w, uint32_t bin_h);
 186         void (*emit_tile_gmem2mem)(struct fd_context *ctx, uint32_t xoff, uint32_t yoff,
 187                         uint32_t bin_w, uint32_t bin_h);
 188
 189         /* draw: */
 190         void (*draw)(struct fd_context *pctx, const struct pipe_draw_info *info);
 191         void (*clear)(struct fd_context *ctx, unsigned buffers,
 192                         const union pipe_color_union *color, double depth, unsigned stencil);
 193 };
 194
 195 static INLINE struct fd_context *
 196 fd_context(struct pipe_context *pctx)
 197 {
 198         return (struct fd_context *)pctx;
 199 }
 200
 201 struct pipe_context * fd_context_init(struct fd_context *ctx,
 202                 struct pipe_screen *pscreen, void *priv);
 203
 204 void fd_context_render(struct pipe_context *pctx);
 205
 206 void fd_context_destroy(struct pipe_context *pctx);
 207
 208 #endif /* FREEDRENO_CONTEXT_H_ */