src/gallium/drivers/cell/ppu/cell_context.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
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  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28
  29 #ifndef CELL_CONTEXT_H
  30 #define CELL_CONTEXT_H
  31
  32
  33 #include "pipe/p_context.h"
  34 #include "pipe/p_defines.h"
  35 #include "draw/draw_vertex.h"
  36 #include "draw/draw_vbuf.h"
  37 #include "cell_winsys.h"
  38 #include "cell/common.h"
  39 #include "rtasm/rtasm_ppc_spe.h"
  40 #include "tgsi/tgsi_scan.h"
  41 #include "util/u_keymap.h"
  42
  43
  44 struct cell_vbuf_render;
  45
  46
  47 /**
  48  * Cell vertex shader state, subclass of pipe_shader_state.
  49  */
  50 struct cell_vertex_shader_state
  51 {
  52    struct pipe_shader_state shader;
  53    struct tgsi_shader_info info;
  54    void *draw_data;
  55 };
  56
  57
  58 /**
  59  * Cell fragment shader state, subclass of pipe_shader_state.
  60  */
  61 struct cell_fragment_shader_state
  62 {
  63    struct pipe_shader_state shader;
  64    struct tgsi_shader_info info;
  65    struct spe_function code;
  66    void *data;
  67 };
  68
  69
  70 /**
  71  * Key for mapping per-fragment state to cached SPU machine code.
  72  *  keymap(cell_fragment_ops_key) => cell_command_fragment_ops
  73  */
  74 struct cell_fragment_ops_key
  75 {
  76    struct pipe_blend_state blend;
  77    struct pipe_depth_stencil_alpha_state dsa;
  78    enum pipe_format color_format;
  79    enum pipe_format zs_format;
  80 };
  81
  82
  83 /**
  84  * Per-context state, subclass of pipe_context.
  85  */
  86 struct cell_context
  87 {
  88    struct pipe_context pipe;
  89
  90    struct cell_winsys *winsys;
  91
  92    const struct pipe_blend_state *blend;
  93    const struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS];
  94    uint num_samplers;
  95    const struct pipe_depth_stencil_alpha_state *depth_stencil;
  96    const struct pipe_rasterizer_state *rasterizer;
  97    const struct cell_vertex_shader_state *vs;
  98    const struct cell_fragment_shader_state *fs;
  99
 100    struct spe_function logic_op;
 101
 102    struct pipe_blend_color blend_color;
 103    struct pipe_clip_state clip;
 104    struct pipe_constant_buffer constants[2];
 105    struct pipe_framebuffer_state framebuffer;
 106    struct pipe_poly_stipple poly_stipple;
 107    struct pipe_scissor_state scissor;
 108    struct cell_texture *texture[PIPE_MAX_SAMPLERS];
 109    uint num_textures;
 110    struct pipe_viewport_state viewport;
 111    struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
 112    uint num_vertex_buffers;
 113    struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
 114    uint num_vertex_elements;
 115
 116    ubyte *cbuf_map[PIPE_MAX_COLOR_BUFS];
 117    ubyte *zsbuf_map;
 118
 119    struct pipe_surface *tex_surf;
 120    uint *tex_map;
 121
 122    uint dirty;
 123
 124    /** Cache of code generated for per-fragment ops */
 125    struct keymap *fragment_ops_cache;
 126
 127    /** The primitive drawing context */
 128    struct draw_context *draw;
 129    struct draw_stage *render_stage;
 130
 131    /** For post-transformed vertex buffering: */
 132    struct cell_vbuf_render *vbuf_render;
 133    struct draw_stage *vbuf;
 134
 135    struct vertex_info vertex_info;
 136
 137    /** Mapped constant buffers */
 138    void *mapped_constants[PIPE_SHADER_TYPES];
 139
 140    struct cell_spu_function_info spu_functions ALIGN16_ATTRIB;
 141
 142    uint num_spus;
 143
 144    /** Buffers for command batches, vertex/index data */
 145    uint buffer_size[CELL_NUM_BUFFERS];
 146    ubyte buffer[CELL_NUM_BUFFERS][CELL_BUFFER_SIZE] ALIGN16_ATTRIB;
 147
 148    int cur_batch;  /**< which buffer is being filled w/ commands */
 149
 150    /** [4] to ensure 16-byte alignment for each status word */
 151    uint buffer_status[CELL_MAX_SPUS][CELL_NUM_BUFFERS][4] ALIGN16_ATTRIB;
 152
 153
 154    struct spe_function attrib_fetch;
 155    unsigned attrib_fetch_offsets[PIPE_MAX_ATTRIBS];
 156
 157    unsigned debug_flags;
 158 };
 159
 160
 161
 162
 163 static INLINE struct cell_context *
 164 cell_context(struct pipe_context *pipe)
 165 {
 166    return (struct cell_context *) pipe;
 167 }
 168
 169
 170 extern struct pipe_context *
 171 cell_create_context(struct pipe_screen *screen, struct cell_winsys *cws);
 172
 173 extern void
 174 cell_vertex_shader_queue_flush(struct draw_context *draw);
 175
 176
 177 /* XXX find a better home for this */
 178 extern void cell_update_vertex_fetch(struct draw_context *draw);
 179
 180
 181 #endif /* CELL_CONTEXT_H */