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
   9  * without limitation the rights to use, copy, modify, merge, publish,
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  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
  42
  43 struct cell_vbuf_render;
  44
  45
  46 /**
  47  * Cell vertex shader state, subclass of pipe_shader_state.
  48  */
  49 struct cell_vertex_shader_state
  50 {
  51    struct pipe_shader_state shader;
  52    struct tgsi_shader_info info;
  53    void *draw_data;
  54 };
  55
  56
  57 /**
  58  * Cell fragment shader state, subclass of pipe_shader_state.
  59  */
  60 struct cell_fragment_shader_state
  61 {
  62    struct pipe_shader_state shader;
  63    struct tgsi_shader_info info;
  64    struct spe_function code;
  65    void *data;
  66 };
  67
  68
  69 /**
  70  * Cell blend state atom, subclass of pipe_blend_state.
  71  */
  72 struct cell_blend_state
  73 {
  74    struct pipe_blend_state base;
  75
  76    /**
  77     * Generated code to perform alpha blending
  78     */
  79    struct spe_function code;
  80 };
  81
  82
  83 /**
  84  * Cell depth/stencil/alpha state atom, subclass of
  85  * pipe_depth_stencil_alpha_state.
  86  */
  87 struct cell_depth_stencil_alpha_state
  88 {
  89    struct pipe_depth_stencil_alpha_state base;
  90
  91    /**
  92     * Generated code to perform alpha, stencil, and depth testing on the SPE
  93     */
  94    struct spe_function code;
  95 };
  96
  97
  98 /**
  99  * Per-context state, subclass of pipe_context.
 100  */
 101 struct cell_context
 102 {
 103    struct pipe_context pipe;
 104
 105    struct cell_winsys *winsys;
 106
 107    const struct cell_blend_state *blend;
 108    const struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS];
 109    uint num_samplers;
 110    const struct cell_depth_stencil_alpha_state   *depth_stencil;
 111    const struct pipe_rasterizer_state *rasterizer;
 112    const struct cell_vertex_shader_state *vs;
 113    const struct cell_fragment_shader_state *fs;
 114
 115    struct spe_function logic_op;
 116
 117    struct pipe_blend_color blend_color;
 118    struct pipe_clip_state clip;
 119    struct pipe_constant_buffer constants[2];
 120    struct pipe_framebuffer_state framebuffer;
 121    struct pipe_poly_stipple poly_stipple;
 122    struct pipe_scissor_state scissor;
 123    struct cell_texture *texture[PIPE_MAX_SAMPLERS];
 124    uint num_textures;
 125    struct pipe_viewport_state viewport;
 126    struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
 127    uint num_vertex_buffers;
 128    struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
 129    uint num_vertex_elements;
 130
 131    ubyte *cbuf_map[PIPE_MAX_COLOR_BUFS];
 132    ubyte *zsbuf_map;
 133
 134    struct pipe_surface *tex_surf;
 135    uint *tex_map;
 136
 137    uint dirty;
 138
 139    /** The primitive drawing context */
 140    struct draw_context *draw;
 141    struct draw_stage *render_stage;
 142
 143    /** For post-transformed vertex buffering: */
 144    struct cell_vbuf_render *vbuf_render;
 145    struct draw_stage *vbuf;
 146
 147    struct vertex_info vertex_info;
 148
 149    /** Mapped constant buffers */
 150    void *mapped_constants[PIPE_SHADER_TYPES];
 151
 152
 153    uint num_spus;
 154
 155    /** Buffers for command batches, vertex/index data */
 156    uint buffer_size[CELL_NUM_BUFFERS];
 157    ubyte buffer[CELL_NUM_BUFFERS][CELL_BUFFER_SIZE] ALIGN16_ATTRIB;
 158
 159    int cur_batch;  /**< which buffer is being filled w/ commands */
 160
 161    /** [4] to ensure 16-byte alignment for each status word */
 162    uint buffer_status[CELL_MAX_SPUS][CELL_NUM_BUFFERS][4] ALIGN16_ATTRIB;
 163
 164
 165    struct spe_function attrib_fetch;
 166    unsigned attrib_fetch_offsets[PIPE_MAX_ATTRIBS];
 167
 168    unsigned debug_flags;
 169 };
 170
 171
 172
 173
 174 static INLINE struct cell_context *
 175 cell_context(struct pipe_context *pipe)
 176 {
 177    return (struct cell_context *) pipe;
 178 }
 179
 180
 181 extern struct pipe_context *
 182 cell_create_context(struct pipe_screen *screen, struct cell_winsys *cws);
 183
 184 extern void
 185 cell_vertex_shader_queue_flush(struct draw_context *draw);
 186
 187
 188 /* XXX find a better home for this */
 189 extern void cell_update_vertex_fetch(struct draw_context *draw);
 190
 191
 192 #endif /* CELL_CONTEXT_H */