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
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  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
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  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.
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  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    void *data;
  65 };
  66
  67
  68 /**
  69  * Cell blend state atom, subclass of pipe_blend_state.
  70  */
  71 struct cell_blend_state
  72 {
  73    struct pipe_blend_state base;
  74
  75    /**
  76     * Generated code to perform alpha blending
  77     */
  78    struct spe_function code;
  79 };
  80
  81
  82 /**
  83  * Cell depth/stencil/alpha state atom, subclass of
  84  * pipe_depth_stencil_alpha_state.
  85  */
  86 struct cell_depth_stencil_alpha_state
  87 {
  88    struct pipe_depth_stencil_alpha_state base;
  89
  90    /**
  91     * Generated code to perform alpha, stencil, and depth testing on the SPE
  92     */
  93    struct spe_function code;
  94 };
  95
  96
  97 /**
  98  * Per-context state, subclass of pipe_context.
  99  */
 100 struct cell_context
 101 {
 102    struct pipe_context pipe;
 103
 104    struct cell_winsys *winsys;
 105
 106    const struct cell_blend_state *blend;
 107    const struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS];
 108    uint num_samplers;
 109    const struct cell_depth_stencil_alpha_state   *depth_stencil;
 110    const struct pipe_rasterizer_state *rasterizer;
 111    const struct cell_vertex_shader_state *vs;
 112    const struct cell_fragment_shader_state *fs;
 113
 114    struct spe_function logic_op;
 115
 116    struct pipe_blend_color blend_color;
 117    struct pipe_clip_state clip;
 118    struct pipe_constant_buffer constants[2];
 119    struct pipe_framebuffer_state framebuffer;
 120    struct pipe_poly_stipple poly_stipple;
 121    struct pipe_scissor_state scissor;
 122    struct cell_texture *texture[PIPE_MAX_SAMPLERS];
 123    uint num_textures;
 124    struct pipe_viewport_state viewport;
 125    struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
 126    uint num_vertex_buffers;
 127    struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
 128    uint num_vertex_elements;
 129
 130    ubyte *cbuf_map[PIPE_MAX_COLOR_BUFS];
 131    ubyte *zsbuf_map;
 132
 133    struct pipe_surface *tex_surf;
 134    uint *tex_map;
 135
 136    uint dirty;
 137
 138    /** The primitive drawing context */
 139    struct draw_context *draw;
 140    struct draw_stage *render_stage;
 141
 142    /** For post-transformed vertex buffering: */
 143    struct cell_vbuf_render *vbuf_render;
 144    struct draw_stage *vbuf;
 145
 146    struct vertex_info vertex_info;
 147
 148    /** Mapped constant buffers */
 149    void *mapped_constants[PIPE_SHADER_TYPES];
 150
 151
 152    uint num_spus;
 153
 154    /** Buffers for command batches, vertex/index data */
 155    uint buffer_size[CELL_NUM_BUFFERS];
 156    ubyte buffer[CELL_NUM_BUFFERS][CELL_BUFFER_SIZE] ALIGN16_ATTRIB;
 157
 158    int cur_batch;  /**< which buffer is being filled w/ commands */
 159
 160    /** [4] to ensure 16-byte alignment for each status word */
 161    uint buffer_status[CELL_MAX_SPUS][CELL_NUM_BUFFERS][4] ALIGN16_ATTRIB;
 162
 163
 164    struct spe_function attrib_fetch;
 165    unsigned attrib_fetch_offsets[PIPE_MAX_ATTRIBS];
 166
 167    unsigned debug_flags;
 168 };
 169
 170
 171
 172
 173 static INLINE struct cell_context *
 174 cell_context(struct pipe_context *pipe)
 175 {
 176    return (struct cell_context *) pipe;
 177 }
 178
 179
 180 extern struct pipe_context *
 181 cell_create_context(struct pipe_screen *screen, struct cell_winsys *cws);
 182
 183 extern void
 184 cell_vertex_shader_queue_flush(struct draw_context *draw);
 185
 186
 187 /* XXX find a better home for this */
 188 extern void cell_update_vertex_fetch(struct draw_context *draw);
 189
 190
 191 #endif /* CELL_CONTEXT_H */