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 "draw/draw_vertex.h"
  28
  29 #include "pipe/p_context.h"
  30
  31 #include "tgsi/tgsi_scan.h"
  32
  33 #include "util/u_memory.h"
  34 #include "util/u_simple_list.h"
  35
  36 #include "r300_clear.h"
  37 #include "r300_query.h"
  38 #include "r300_screen.h"
  39 #include "r300_winsys.h"
  40
  41 struct r300_fragment_shader;
  42 struct r300_vertex_shader;
  43
  44 struct r300_blend_state {
  45     uint32_t blend_control;       /* R300_RB3D_CBLEND: 0x4e04 */
  46     uint32_t alpha_blend_control; /* R300_RB3D_ABLEND: 0x4e08 */
  47     uint32_t rop;                 /* R300_RB3D_ROPCNTL: 0x4e18 */
  48     uint32_t dither;              /* R300_RB3D_DITHER_CTL: 0x4e50 */
  49 };
  50
  51 struct r300_blend_color_state {
  52     /* RV515 and earlier */
  53     uint32_t blend_color;            /* R300_RB3D_BLEND_COLOR: 0x4e10 */
  54     /* R520 and newer */
  55     uint32_t blend_color_red_alpha;  /* R500_RB3D_CONSTANT_COLOR_AR: 0x4ef8 */
  56     uint32_t blend_color_green_blue; /* R500_RB3D_CONSTANT_COLOR_GB: 0x4efc */
  57 };
  58
  59 struct r300_dsa_state {
  60     uint32_t alpha_function;    /* R300_FG_ALPHA_FUNC: 0x4bd4 */
  61     uint32_t alpha_reference;   /* R500_FG_ALPHA_VALUE: 0x4be0 */
  62     uint32_t z_buffer_control;  /* R300_ZB_CNTL: 0x4f00 */
  63     uint32_t z_stencil_control; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
  64     uint32_t stencil_ref_mask;  /* R300_ZB_STENCILREFMASK: 0x4f08 */
  65     uint32_t z_buffer_top;      /* R300_ZB_ZTOP: 0x4f14 */
  66     uint32_t stencil_ref_bf;    /* R500_ZB_STENCILREFMASK_BF: 0x4fd4 */
  67 };
  68
  69 struct r300_rs_state {
  70     /* Draw-specific rasterizer state */
  71     struct pipe_rasterizer_state rs;
  72
  73     /* Whether or not to enable the VTE. This is referenced at the very
  74      * last moment during emission of VTE state, to decide whether or not
  75      * the VTE should be used for transformation. */
  76     boolean enable_vte;
  77
  78     uint32_t vap_control_status;    /* R300_VAP_CNTL_STATUS: 0x2140 */
  79     uint32_t point_size;            /* R300_GA_POINT_SIZE: 0x421c */
  80     uint32_t point_minmax;          /* R300_GA_POINT_MINMAX: 0x4230 */
  81     uint32_t line_control;          /* R300_GA_LINE_CNTL: 0x4234 */
  82     uint32_t depth_scale_front;  /* R300_SU_POLY_OFFSET_FRONT_SCALE: 0x42a4 */
  83     uint32_t depth_offset_front;/* R300_SU_POLY_OFFSET_FRONT_OFFSET: 0x42a8 */
  84     uint32_t depth_scale_back;    /* R300_SU_POLY_OFFSET_BACK_SCALE: 0x42ac */
  85     uint32_t depth_offset_back;  /* R300_SU_POLY_OFFSET_BACK_OFFSET: 0x42b0 */
  86     uint32_t polygon_offset_enable; /* R300_SU_POLY_OFFSET_ENABLE: 0x42b4 */
  87     uint32_t cull_mode;             /* R300_SU_CULL_MODE: 0x42b8 */
  88     uint32_t line_stipple_config;   /* R300_GA_LINE_STIPPLE_CONFIG: 0x4328 */
  89     uint32_t line_stipple_value;    /* R300_GA_LINE_STIPPLE_VALUE: 0x4260 */
  90     uint32_t color_control;         /* R300_GA_COLOR_CONTROL: 0x4278 */
  91 };
  92
  93 struct r300_rs_block {
  94     uint32_t ip[8]; /* R300_RS_IP_[0-7], R500_RS_IP_[0-7] */
  95     uint32_t count; /* R300_RS_COUNT */
  96     uint32_t inst_count; /* R300_RS_INST_COUNT */
  97     uint32_t inst[8]; /* R300_RS_INST_[0-7] */
  98 };
  99
 100 struct r300_sampler_state {
 101     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
 102     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
 103     uint32_t border_color; /* R300_TX_BORDER_COLOR: 0x45c0 */
 104 };
 105
 106 struct r300_scissor_state {
 107     uint32_t scissor_top_left;     /* R300_SC_SCISSORS_TL: 0x43e0 */
 108     uint32_t scissor_bottom_right; /* R300_SC_SCISSORS_BR: 0x43e4 */
 109 };
 110
 111 struct r300_texture_state {
 112     uint32_t format0; /* R300_TX_FORMAT0: 0x4480 */
 113     uint32_t format1; /* R300_TX_FORMAT1: 0x44c0 */
 114     uint32_t format2; /* R300_TX_FORMAT2: 0x4500 */
 115 };
 116
 117 struct r300_viewport_state {
 118     float xscale;         /* R300_VAP_VPORT_XSCALE:  0x2098 */
 119     float xoffset;        /* R300_VAP_VPORT_XOFFSET: 0x209c */
 120     float yscale;         /* R300_VAP_VPORT_YSCALE:  0x20a0 */
 121     float yoffset;        /* R300_VAP_VPORT_YOFFSET: 0x20a4 */
 122     float zscale;         /* R300_VAP_VPORT_ZSCALE:  0x20a8 */
 123     float zoffset;        /* R300_VAP_VPORT_ZOFFSET: 0x20ac */
 124     uint32_t vte_control; /* R300_VAP_VTE_CNTL:      0x20b0 */
 125 };
 126
 127 #define R300_NEW_BLEND           0x00000001
 128 #define R300_NEW_BLEND_COLOR     0x00000002
 129 #define R300_NEW_CLIP            0x00000004
 130 #define R300_NEW_CONSTANTS       0x00000008
 131 #define R300_NEW_DSA             0x00000010
 132 #define R300_NEW_FRAMEBUFFERS    0x00000020
 133 #define R300_NEW_FRAGMENT_SHADER 0x00000040
 134 #define R300_NEW_RASTERIZER      0x00000080
 135 #define R300_NEW_RS_BLOCK        0x00000100
 136 #define R300_NEW_SAMPLER         0x00000200
 137 #define R300_ANY_NEW_SAMPLERS    0x0001fe00
 138 #define R300_NEW_SCISSOR         0x00020000
 139 #define R300_NEW_TEXTURE         0x00040000
 140 #define R300_ANY_NEW_TEXTURES    0x03fc0000
 141 #define R300_NEW_VERTEX_FORMAT   0x04000000
 142 #define R300_NEW_VERTEX_SHADER   0x08000000
 143 #define R300_NEW_VIEWPORT        0x10000000
 144 #define R300_NEW_QUERY           0x20000000
 145 #define R300_NEW_KITCHEN_SINK    0x3fffffff
 146
 147 /* The next several objects are not pure Radeon state; they inherit from
 148  * various Gallium classes. */
 149
 150 struct r300_constant_buffer {
 151     /* Buffer of constants */
 152     /* XXX first number should be raised */
 153     float constants[32][4];
 154     /* Total number of constants */
 155     unsigned count;
 156 };
 157
 158 /* Query object.
 159  *
 160  * This is not a subclass of pipe_query because pipe_query is never
 161  * actually fully defined. So, rather than have it as a member, and do
 162  * subclass-style casting, we treat pipe_query as an opaque, and just
 163  * trust that our state tracker does not ever mess up query objects.
 164  */
 165 struct r300_query {
 166     /* The kind of query. Currently only OQ is supported. */
 167     unsigned type;
 168     /* Whether this query is currently active. Only active queries will
 169      * get emitted into the command stream, and only active queries get
 170      * tallied. */
 171     boolean active;
 172     /* The current count of this query. Required to be at least 32 bits. */
 173     unsigned int count;
 174     /* The offset of this query into the query buffer, in bytes. */
 175     unsigned offset;
 176     /* if we've flushed the query */
 177     boolean flushed;
 178     /* if begin has been emitted */
 179     boolean begin_emitted;
 180     /* Linked list members. */
 181     struct r300_query* prev;
 182     struct r300_query* next;
 183 };
 184
 185 struct r300_texture {
 186     /* Parent class */
 187     struct pipe_texture tex;
 188
 189     /* Offsets into the buffer. */
 190     unsigned offset[PIPE_MAX_TEXTURE_LEVELS];
 191
 192     /**
 193      * If non-zero, override the natural texture layout with
 194      * a custom stride (in bytes).
 195      *
 196      * \note Mipmapping fails for textures with a non-natural layout!
 197      *
 198      * \sa r300_texture_get_stride
 199      */
 200     unsigned stride_override;
 201
 202     /* Total size of this texture, in bytes. */
 203     unsigned size;
 204
 205     /* Pipe buffer backing this texture. */
 206     struct pipe_buffer* buffer;
 207
 208     /* Registers carrying texture format data. */
 209     struct r300_texture_state state;
 210 };
 211
 212 struct r300_vertex_format {
 213     /* Parent class */
 214     struct vertex_info vinfo;
 215     /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
 216     uint32_t vap_prog_stream_cntl[8];
 217     /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
 218     uint32_t vap_prog_stream_cntl_ext[8];
 219     /* Map of vertex attributes into PVS memory for HW TCL,
 220      * or GA memory for SW TCL. */
 221     int vs_tab[16];
 222     /* Map of rasterizer attributes from GB through RS to US. */
 223     int fs_tab[16];
 224 };
 225
 226 extern struct pipe_viewport_state r300_viewport_identity;
 227
 228 struct r300_context {
 229     /* Parent class */
 230     struct pipe_context context;
 231
 232     /* The interface to the windowing system, etc. */
 233     struct r300_winsys* winsys;
 234     /* Draw module. Used mostly for SW TCL. */
 235     struct draw_context* draw;
 236
 237     /* Vertex buffer for rendering. */
 238     struct pipe_buffer* vbo;
 239     /* Offset into the VBO. */
 240     size_t vbo_offset;
 241
 242     /* Occlusion query buffer. */
 243     struct pipe_buffer* oqbo;
 244     /* Query list. */
 245     struct r300_query *query_current;
 246     struct r300_query query_list;
 247
 248     /* Various CSO state objects. */
 249     /* Blend state. */
 250     struct r300_blend_state* blend_state;
 251     /* Blend color state. */
 252     struct r300_blend_color_state* blend_color_state;
 253     /* User clip planes. */
 254     struct pipe_clip_state clip_state;
 255     /* Shader constants. */
 256     struct r300_constant_buffer shader_constants[PIPE_SHADER_TYPES];
 257     /* Depth, stencil, and alpha state. */
 258     struct r300_dsa_state* dsa_state;
 259     /* Fragment shader. */
 260     struct r300_fragment_shader* fs;
 261     /* Framebuffer state. We currently don't need our own version of this. */
 262     struct pipe_framebuffer_state framebuffer_state;
 263     /* Rasterizer state. */
 264     struct r300_rs_state* rs_state;
 265     /* RS block state. */
 266     struct r300_rs_block* rs_block;
 267     /* Sampler states. */
 268     struct r300_sampler_state* sampler_states[8];
 269     int sampler_count;
 270     /* Scissor state. */
 271     struct r300_scissor_state* scissor_state;
 272     /* Texture states. */
 273     struct r300_texture* textures[8];
 274     int texture_count;
 275     /* Vertex buffers for Gallium. */
 276     struct pipe_vertex_buffer vertex_buffers[PIPE_MAX_ATTRIBS];
 277     int vertex_buffer_count;
 278     /* Vertex information. */
 279     struct r300_vertex_format vertex_info;
 280     /* Vertex shader. */
 281     struct r300_vertex_shader* vs;
 282     /* Viewport state. */
 283     struct r300_viewport_state* viewport_state;
 284     /* Bitmask of dirty state objects. */
 285     uint32_t dirty_state;
 286     /* Flag indicating whether or not the HW is dirty. */
 287     uint32_t dirty_hw;
 288
 289     /** Combination of DBG_xxx flags */
 290     unsigned debug;
 291 };
 292
 293 /* Convenience cast wrapper. */
 294 static INLINE struct r300_context* r300_context(struct pipe_context* context)
 295 {
 296     return (struct r300_context*)context;
 297 }
 298
 299 /* Context initialization. */
 300 struct draw_stage* r300_draw_stage(struct r300_context* r300);
 301 void r300_init_state_functions(struct r300_context* r300);
 302 void r300_init_surface_functions(struct r300_context* r300);
 303
 304 /* Debug functionality. */
 305
 306 /**
 307  * Debug flags to disable/enable certain groups of debugging outputs.
 308  *
 309  * \note These may be rather coarse, and the grouping may be impractical.
 310  * If you find, while debugging the driver, that a different grouping
 311  * of these flags would be beneficial, just feel free to change them
 312  * but make sure to update the documentation in r300_debug.c to reflect
 313  * those changes.
 314  */
 315 /*@{*/
 316 #define DBG_HELP    0x0000001
 317 #define DBG_FP      0x0000002
 318 #define DBG_VP      0x0000004
 319 #define DBG_CS      0x0000008
 320 #define DBG_DRAW    0x0000010
 321 #define DBG_SURF    0x0000020
 322 #define DBG_TEX     0x0000040
 323 #define DBG_FALL    0x0000080
 324 /*@}*/
 325
 326 static INLINE boolean DBG_ON(struct r300_context * ctx, unsigned flags)
 327 {
 328     return (ctx->debug & flags) ? true : false;
 329 }
 330
 331 static INLINE void DBG(struct r300_context * ctx, unsigned flags, const char * fmt, ...)
 332 {
 333     if (DBG_ON(ctx, flags)) {
 334         va_list va;
 335         va_start(va, fmt);
 336         debug_vprintf(fmt, va);
 337         va_end(va);
 338     }
 339 }
 340
 341 void r300_init_debug(struct r300_context * ctx);
 342
 343 #endif /* R300_CONTEXT_H */