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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  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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  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/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_blend_color blend_color;
  78    struct pipe_depth_stencil_alpha_state dsa;
  79    enum pipe_format color_format;
  80    enum pipe_format zs_format;
  81 };
  82
  83
  84 struct cell_buffer_node;
  85
  86 /**
  87  * Fenced buffer list.  List of buffers which can be unreferenced after
  88  * the fence has been executed/signalled.
  89  */
  90 struct cell_buffer_list
  91 {
  92    PIPE_ALIGN_VAR(16) struct cell_fence fence;
  93    struct cell_buffer_node *head;
  94 };
  95
  96 struct cell_velems_state
  97 {
  98    unsigned count;
  99    struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
 100 }
 101
 102 /**
 103  * Per-context state, subclass of pipe_context.
 104  */
 105 struct cell_context
 106 {
 107    struct pipe_context pipe;
 108
 109    struct cell_winsys *winsys;
 110
 111    const struct pipe_blend_state *blend;
 112    const struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS];
 113    uint num_samplers;
 114    const struct pipe_depth_stencil_alpha_state *depth_stencil;
 115    const struct pipe_rasterizer_state *rasterizer;
 116    const struct cell_vertex_shader_state *vs;
 117    const struct cell_fragment_shader_state *fs;
 118    const struct cell_velems_state *velems;
 119
 120    struct spe_function logic_op;
 121
 122    struct pipe_blend_color blend_color;
 123    struct pipe_stencil_ref stencil_ref;
 124    struct pipe_clip_state clip;
 125    struct pipe_buffer *constants[2];
 126    struct pipe_framebuffer_state framebuffer;
 127    struct pipe_poly_stipple poly_stipple;
 128    struct pipe_scissor_state scissor;
 129    struct cell_texture *texture[PIPE_MAX_SAMPLERS];
 130    uint num_textures;
 131    struct pipe_viewport_state viewport;
 132    struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
 133    uint num_vertex_buffers;
 134
 135    ubyte *cbuf_map[PIPE_MAX_COLOR_BUFS];
 136    ubyte *zsbuf_map;
 137
 138    uint dirty;
 139    uint dirty_textures;  /* bitmask of texture units */
 140    uint dirty_samplers;  /* bitmask of sampler units */
 141
 142    /** Cache of code generated for per-fragment ops */
 143    struct keymap *fragment_ops_cache;
 144
 145    /** The primitive drawing context */
 146    struct draw_context *draw;
 147    struct draw_stage *render_stage;
 148
 149    /** For post-transformed vertex buffering: */
 150    struct cell_vbuf_render *vbuf_render;
 151    struct draw_stage *vbuf;
 152
 153    struct vertex_info vertex_info;
 154
 155    /** Mapped constant buffers */
 156    void *mapped_constants[PIPE_SHADER_TYPES];
 157
 158    PIPE_ALIGN_VAR(16) struct cell_spu_function_info spu_functions;
 159
 160    uint num_cells, num_spus;
 161
 162    /** Buffers for command batches, vertex/index data */
 163    uint buffer_size[CELL_NUM_BUFFERS];
 164    PIPE_ALIGN_VAR(16) ubyte buffer[CELL_NUM_BUFFERS][CELL_BUFFER_SIZE];
 165
 166    int cur_batch;  /**< which buffer is being filled w/ commands */
 167
 168    /** [4] to ensure 16-byte alignment for each status word */
 169    PIPE_ALIGN_VAR(16) uint buffer_status[CELL_MAX_SPUS][CELL_NUM_BUFFERS][4];
 170
 171
 172    /** Associated with each command/batch buffer is a list of pipe_buffers
 173     * that are fenced.  When the last command in a buffer is executed, the
 174     * fence will be signalled, indicating that any pipe_buffers preceeding
 175     * that fence can be unreferenced (and probably freed).
 176     */
 177    struct cell_buffer_list fenced_buffers[CELL_NUM_BUFFERS];
 178
 179
 180    struct spe_function attrib_fetch;
 181    unsigned attrib_fetch_offsets[PIPE_MAX_ATTRIBS];
 182
 183    unsigned debug_flags;
 184 };
 185
 186
 187
 188
 189 static INLINE struct cell_context *
 190 cell_context(struct pipe_context *pipe)
 191 {
 192    return (struct cell_context *) pipe;
 193 }
 194
 195
 196 struct pipe_context *
 197 cell_create_context(struct pipe_screen *screen,
 198                     void *priv );
 199
 200 extern void
 201 cell_vertex_shader_queue_flush(struct draw_context *draw);
 202
 203
 204 /* XXX find a better home for this */
 205 extern void cell_update_vertex_fetch(struct draw_context *draw);
 206
 207
 208 #endif /* CELL_CONTEXT_H */