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,
  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
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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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  * Per-context state, subclass of pipe_context.
  71  */
  72 struct cell_context
  73 {
  74    struct pipe_context pipe;
  75
  76    struct cell_winsys *winsys;
  77
  78    const struct pipe_blend_state *blend;
  79    const struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS];
  80    uint num_samplers;
  81    const struct pipe_depth_stencil_alpha_state *depth_stencil;
  82    const struct pipe_rasterizer_state *rasterizer;
  83    const struct cell_vertex_shader_state *vs;
  84    const struct cell_fragment_shader_state *fs;
  85
  86    struct spe_function logic_op;
  87
  88    struct pipe_blend_color blend_color;
  89    struct pipe_clip_state clip;
  90    struct pipe_constant_buffer constants[2];
  91    struct pipe_framebuffer_state framebuffer;
  92    struct pipe_poly_stipple poly_stipple;
  93    struct pipe_scissor_state scissor;
  94    struct cell_texture *texture[PIPE_MAX_SAMPLERS];
  95    uint num_textures;
  96    struct pipe_viewport_state viewport;
  97    struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
  98    uint num_vertex_buffers;
  99    struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
 100    uint num_vertex_elements;
 101
 102    ubyte *cbuf_map[PIPE_MAX_COLOR_BUFS];
 103    ubyte *zsbuf_map;
 104
 105    struct pipe_surface *tex_surf;
 106    uint *tex_map;
 107
 108    uint dirty;
 109
 110    /** The primitive drawing context */
 111    struct draw_context *draw;
 112    struct draw_stage *render_stage;
 113
 114    /** For post-transformed vertex buffering: */
 115    struct cell_vbuf_render *vbuf_render;
 116    struct draw_stage *vbuf;
 117
 118    struct vertex_info vertex_info;
 119
 120    /** Mapped constant buffers */
 121    void *mapped_constants[PIPE_SHADER_TYPES];
 122
 123    struct cell_spu_function_info spu_functions ALIGN16_ATTRIB;
 124
 125    uint num_spus;
 126
 127    /** Buffers for command batches, vertex/index data */
 128    uint buffer_size[CELL_NUM_BUFFERS];
 129    ubyte buffer[CELL_NUM_BUFFERS][CELL_BUFFER_SIZE] ALIGN16_ATTRIB;
 130
 131    int cur_batch;  /**< which buffer is being filled w/ commands */
 132
 133    /** [4] to ensure 16-byte alignment for each status word */
 134    uint buffer_status[CELL_MAX_SPUS][CELL_NUM_BUFFERS][4] ALIGN16_ATTRIB;
 135
 136
 137    struct spe_function attrib_fetch;
 138    unsigned attrib_fetch_offsets[PIPE_MAX_ATTRIBS];
 139
 140    unsigned debug_flags;
 141 };
 142
 143
 144
 145
 146 static INLINE struct cell_context *
 147 cell_context(struct pipe_context *pipe)
 148 {
 149    return (struct cell_context *) pipe;
 150 }
 151
 152
 153 extern struct pipe_context *
 154 cell_create_context(struct pipe_screen *screen, struct cell_winsys *cws);
 155
 156 extern void
 157 cell_vertex_shader_queue_flush(struct draw_context *draw);
 158
 159
 160 /* XXX find a better home for this */
 161 extern void cell_update_vertex_fetch(struct draw_context *draw);
 162
 163
 164 #endif /* CELL_CONTEXT_H */