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,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  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/util/tgsi_scan.h"
  41
  42 struct cell_vbuf_render;
  43
  44 struct cell_vertex_shader_state
  45 {
  46    struct pipe_shader_state shader;
  47    struct tgsi_shader_info info;
  48    void *draw_data;
  49 };
  50
  51
  52 struct cell_fragment_shader_state
  53 {
  54    struct pipe_shader_state shader;
  55    struct tgsi_shader_info info;
  56    void *data;
  57 };
  58
  59
  60 struct cell_blend_state {
  61    struct pipe_blend_state base;
  62
  63    /**
  64     * Generated code to perform alpha blending
  65     */
  66    struct spe_function code;
  67 };
  68
  69
  70 struct cell_depth_stencil_alpha_state {
  71    struct pipe_depth_stencil_alpha_state   base;
  72
  73    /**
  74     * Generated code to perform alpha, stencil, and depth testing on the SPE
  75     */
  76    struct spe_function code;
  77
  78 };
  79
  80
  81 struct cell_context
  82 {
  83    struct pipe_context pipe;
  84
  85    struct cell_winsys *winsys;
  86
  87    const struct cell_blend_state *blend;
  88    const struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS];
  89    uint num_samplers;
  90    const struct cell_depth_stencil_alpha_state   *depth_stencil;
  91    const struct pipe_rasterizer_state *rasterizer;
  92    const struct cell_vertex_shader_state *vs;
  93    const struct cell_fragment_shader_state *fs;
  94
  95    struct spe_function logic_op;
  96
  97    struct pipe_blend_color blend_color;
  98    struct pipe_clip_state clip;
  99    struct pipe_constant_buffer constants[2];
 100    struct pipe_framebuffer_state framebuffer;
 101    struct pipe_poly_stipple poly_stipple;
 102    struct pipe_scissor_state scissor;
 103    struct cell_texture *texture[PIPE_MAX_SAMPLERS];
 104    uint num_textures;
 105    struct pipe_viewport_state viewport;
 106    struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
 107    uint num_vertex_buffers;
 108    struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
 109    uint num_vertex_elements;
 110
 111    ubyte *cbuf_map[PIPE_MAX_COLOR_BUFS];
 112    ubyte *zsbuf_map;
 113
 114    struct pipe_surface *tex_surf;
 115    uint *tex_map;
 116
 117    uint dirty;
 118
 119    /** The primitive drawing context */
 120    struct draw_context *draw;
 121    struct draw_stage *render_stage;
 122
 123    /** For post-transformed vertex buffering: */
 124    struct cell_vbuf_render *vbuf_render;
 125    struct draw_stage *vbuf;
 126
 127    struct vertex_info vertex_info;
 128
 129    /** Mapped constant buffers */
 130    void *mapped_constants[PIPE_SHADER_TYPES];
 131
 132
 133    uint num_spus;
 134
 135    /** Buffers for command batches, vertex/index data */
 136    uint buffer_size[CELL_NUM_BUFFERS];
 137    ubyte buffer[CELL_NUM_BUFFERS][CELL_BUFFER_SIZE] ALIGN16_ATTRIB;
 138
 139    int cur_batch;  /**< which buffer is being filled w/ commands */
 140
 141    /** [4] to ensure 16-byte alignment for each status word */
 142    uint buffer_status[CELL_MAX_SPUS][CELL_NUM_BUFFERS][4] ALIGN16_ATTRIB;
 143
 144
 145    struct spe_function attrib_fetch;
 146    unsigned attrib_fetch_offsets[PIPE_MAX_ATTRIBS];
 147 };
 148
 149
 150
 151
 152 static INLINE struct cell_context *
 153 cell_context(struct pipe_context *pipe)
 154 {
 155    return (struct cell_context *) pipe;
 156 }
 157
 158
 159 extern struct pipe_context *
 160 cell_create_context(struct pipe_screen *screen, struct cell_winsys *cws);
 161
 162 extern void
 163 cell_vertex_shader_queue_flush(struct draw_context *draw);
 164
 165
 166 /* XXX find a better home for this */
 167 extern void cell_update_vertex_fetch(struct draw_context *draw);
 168
 169
 170 #endif /* CELL_CONTEXT_H */