src/gallium/drivers/r300/r300_context.h

   1 /*
   2  * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  22
  23 #ifndef R300_CONTEXT_H
  24 #define R300_CONTEXT_H
  25
  26 #include "draw/draw_context.h"
  27 #include "pipe/p_context.h"
  28 #include "tgsi/tgsi_scan.h"
  29 #include "util/u_memory.h"
  30
  31 #include "r300_clear.h"
  32 #include "r300_screen.h"
  33 #include "r300_winsys.h"
  34
  35 struct r300_blend_state {
  36     uint32_t blend_control;       /* R300_RB3D_CBLEND: 0x4e04 */
  37     uint32_t alpha_blend_control; /* R300_RB3D_ABLEND: 0x4e08 */
  38     uint32_t rop;                 /* R300_RB3D_ROPCNTL: 0x4e18 */
  39     uint32_t dither;              /* R300_RB3D_DITHER_CTL: 0x4e50 */
  40 };
  41
  42 struct r300_blend_color_state {
  43     /* RV515 and earlier */
  44     uint32_t blend_color;            /* R300_RB3D_BLEND_COLOR: 0x4e10 */
  45     /* R520 and newer */
  46     uint32_t blend_color_red_alpha;  /* R500_RB3D_CONSTANT_COLOR_AR: 0x4ef8 */
  47     uint32_t blend_color_green_blue; /* R500_RB3D_CONSTANT_COLOR_GB: 0x4efc */
  48 };
  49
  50 struct r300_dsa_state {
  51     uint32_t alpha_function;    /* R300_FG_ALPHA_FUNC: 0x4bd4 */
  52     uint32_t alpha_reference;   /* R500_FG_ALPHA_VALUE: 0x4be0 */
  53     uint32_t z_buffer_control;  /* R300_ZB_CNTL: 0x4f00 */
  54     uint32_t z_stencil_control; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
  55     uint32_t stencil_ref_mask;  /* R300_ZB_STENCILREFMASK: 0x4f08 */
  56     uint32_t z_buffer_top;      /* R300_ZB_ZTOP: 0x4f14 */
  57     uint32_t stencil_ref_bf;    /* R500_ZB_STENCILREFMASK_BF: 0x4fd4 */
  58 };
  59
  60 struct r300_rs_state {
  61     uint32_t vap_control_status;    /* R300_VAP_CNTL_STATUS: 0x2140 */
  62     uint32_t point_size;            /* R300_GA_POINT_SIZE: 0x421c */
  63     uint32_t line_control;          /* R300_GA_LINE_CNTL: 0x4234 */
  64     uint32_t depth_scale_front;  /* R300_SU_POLY_OFFSET_FRONT_SCALE: 0x42a4 */
  65     uint32_t depth_offset_front;/* R300_SU_POLY_OFFSET_FRONT_OFFSET: 0x42a8 */
  66     uint32_t depth_scale_back;    /* R300_SU_POLY_OFFSET_BACK_SCALE: 0x42ac */
  67     uint32_t depth_offset_back;  /* R300_SU_POLY_OFFSET_BACK_OFFSET: 0x42b0 */
  68     uint32_t polygon_offset_enable; /* R300_SU_POLY_OFFSET_ENABLE: 0x42b4 */
  69     uint32_t cull_mode;             /* R300_SU_CULL_MODE: 0x42b8 */
  70     uint32_t line_stipple_config;   /* R300_GA_LINE_STIPPLE_CONFIG: 0x4328 */
  71     uint32_t line_stipple_value;    /* R300_GA_LINE_STIPPLE_VALUE: 0x4260 */
  72 };
  73
  74 struct r300_sampler_state {
  75     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
  76     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
  77     uint32_t border_color; /* R300_TX_BORDER_COLOR: 0x45c0 */
  78 };
  79
  80 struct r300_scissor_state {
  81     uint32_t scissor_top_left;     /* R300_SC_SCISSORS_TL: 0x43e0 */
  82     uint32_t scissor_bottom_right; /* R300_SC_SCISSORS_BR: 0x43e4 */
  83 };
  84
  85 struct r300_texture_state {
  86 };
  87
  88 #define R300_NEW_BLEND           0x000001
  89 #define R300_NEW_BLEND_COLOR     0x000002
  90 #define R300_NEW_DSA             0x000004
  91 #define R300_NEW_FRAMEBUFFERS    0x000008
  92 #define R300_NEW_FRAGMENT_SHADER 0x000010
  93 #define R300_NEW_RASTERIZER      0x000020
  94 #define R300_NEW_SAMPLER         0x000040
  95 #define R300_NEW_SCISSOR         0x004000
  96 #define R300_NEW_TEXTURE         0x008000
  97 #define R300_NEW_VERTEX_SHADER   0x800000
  98 #define R300_NEW_KITCHEN_SINK    0xffffff
  99
 100 /* The next several objects are not pure Radeon state; they inherit from
 101  * various Gallium classes. */
 102
 103 struct r3xx_fragment_shader {
 104     /* Parent class */
 105     struct pipe_shader_state state;
 106     struct tgsi_shader_info info;
 107
 108     /* Has this shader been translated yet? */
 109     boolean translated;
 110
 111     /* Pixel stack size */
 112     int stack_size;
 113 };
 114
 115 struct r300_fragment_shader {
 116     /* Parent class */
 117     struct r3xx_fragment_shader shader;
 118
 119     /* Number of ALU instructions */
 120     int alu_instruction_count;
 121
 122     /* Number of texture instructions */
 123     int tex_instruction_count;
 124
 125     /* Number of texture indirections */
 126     int indirections;
 127
 128     /* Indirection node offsets */
 129     int offset0;
 130     int offset1;
 131     int offset2;
 132     int offset3;
 133
 134     /* Machine instructions */
 135     struct {
 136         uint32_t alu_rgb_inst;
 137         uint32_t alu_rgb_addr;
 138         uint32_t alu_alpha_inst;
 139         uint32_t alu_alpha_addr;
 140     } instructions[64]; /* XXX magic num */
 141 };
 142
 143 struct r500_fragment_shader {
 144     /* Parent class */
 145     struct r3xx_fragment_shader shader;
 146
 147     /* Number of used instructions */
 148     int instruction_count;
 149
 150     /* Machine instructions */
 151     struct {
 152         uint32_t inst0;
 153         uint32_t inst1;
 154         uint32_t inst2;
 155         uint32_t inst3;
 156         uint32_t inst4;
 157         uint32_t inst5;
 158     } instructions[256]; /*< XXX magic number */
 159 };
 160
 161 struct r300_texture {
 162     /* Parent class */
 163     struct pipe_texture tex;
 164
 165     /* Offsets into the buffer. */
 166     unsigned offset[PIPE_MAX_TEXTURE_LEVELS];
 167
 168     /* Total size of this texture, in bytes. */
 169     unsigned size;
 170
 171     /* Pipe buffer backing this texture. */
 172     struct pipe_buffer* buffer;
 173 };
 174
 175 struct r300_context {
 176     /* Parent class */
 177     struct pipe_context context;
 178
 179     /* The interface to the windowing system, etc. */
 180     struct r300_winsys* winsys;
 181     /* Draw module. Used mostly for SW TCL. */
 182     struct draw_context* draw;
 183
 184     /* Various CSO state objects. */
 185     /* Blend state. */
 186     struct r300_blend_state* blend_state;
 187     /* Blend color state. */
 188     struct r300_blend_color_state* blend_color_state;
 189     /* Depth, stencil, and alpha state. */
 190     struct r300_dsa_state* dsa_state;
 191     /* Fragment shader. */
 192     struct r3xx_fragment_shader* fs;
 193     /* Framebuffer state. We currently don't need our own version of this. */
 194     struct pipe_framebuffer_state framebuffer_state;
 195     /* Rasterizer state. */
 196     struct r300_rs_state* rs_state;
 197     /* Sampler states. */
 198     struct r300_sampler_state* sampler_states[8];
 199     int sampler_count;
 200     /* Scissor state. */
 201     struct r300_scissor_state* scissor_state;
 202     /* Texture states. */
 203     struct r300_texture* textures[8];
 204     struct r300_texture_state* texture_states[8];
 205     int texture_count;
 206     /* Bitmask of dirty state objects. */
 207     uint32_t dirty_state;
 208     /* Flag indicating whether or not the HW is dirty. */
 209     uint32_t dirty_hw;
 210 };
 211
 212 /* Convenience cast wrapper. */
 213 static struct r300_context* r300_context(struct pipe_context* context) {
 214     return (struct r300_context*)context;
 215 }
 216
 217 /* Context initialization. */
 218 void r300_init_state_functions(struct r300_context* r300);
 219 void r300_init_surface_functions(struct r300_context* r300);
 220
 221 /* Fun with includes: r300_winsys also declares this prototype.
 222  * We'll just step out in that case... */
 223 #ifndef R300_WINSYS_H
 224 struct pipe_context* r300_create_context(struct pipe_screen* screen,
 225                                          struct pipe_winsys* winsys,
 226                                          struct r300_winsys* r300_winsys);
 227 #endif
 228
 229 #endif /* R300_CONTEXT_H */