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 #include "pipe/p_context.h"
  29 #include "tgsi/tgsi_scan.h"
  30 #include "util/u_memory.h"
  31
  32 #include "r300_clear.h"
  33 #include "r300_query.h"
  34 #include "r300_screen.h"
  35 #include "r300_winsys.h"
  36
  37 struct r300_fragment_shader;
  38 struct r300_vertex_shader;
  39
  40 struct r300_blend_state {
  41     uint32_t blend_control;       /* R300_RB3D_CBLEND: 0x4e04 */
  42     uint32_t alpha_blend_control; /* R300_RB3D_ABLEND: 0x4e08 */
  43     uint32_t rop;                 /* R300_RB3D_ROPCNTL: 0x4e18 */
  44     uint32_t dither;              /* R300_RB3D_DITHER_CTL: 0x4e50 */
  45 };
  46
  47 struct r300_blend_color_state {
  48     /* RV515 and earlier */
  49     uint32_t blend_color;            /* R300_RB3D_BLEND_COLOR: 0x4e10 */
  50     /* R520 and newer */
  51     uint32_t blend_color_red_alpha;  /* R500_RB3D_CONSTANT_COLOR_AR: 0x4ef8 */
  52     uint32_t blend_color_green_blue; /* R500_RB3D_CONSTANT_COLOR_GB: 0x4efc */
  53 };
  54
  55 struct r300_dsa_state {
  56     uint32_t alpha_function;    /* R300_FG_ALPHA_FUNC: 0x4bd4 */
  57     uint32_t alpha_reference;   /* R500_FG_ALPHA_VALUE: 0x4be0 */
  58     uint32_t z_buffer_control;  /* R300_ZB_CNTL: 0x4f00 */
  59     uint32_t z_stencil_control; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
  60     uint32_t stencil_ref_mask;  /* R300_ZB_STENCILREFMASK: 0x4f08 */
  61     uint32_t z_buffer_top;      /* R300_ZB_ZTOP: 0x4f14 */
  62     uint32_t stencil_ref_bf;    /* R500_ZB_STENCILREFMASK_BF: 0x4fd4 */
  63 };
  64
  65 struct r300_rs_state {
  66     /* Draw-specific rasterizer state */
  67     struct pipe_rasterizer_state rs;
  68
  69     /* Whether or not to enable the VTE. This is referenced at the very
  70      * last moment during emission of VTE state, to decide whether or not
  71      * the VTE should be used for transformation. */
  72     boolean enable_vte;
  73
  74     uint32_t vap_control_status;    /* R300_VAP_CNTL_STATUS: 0x2140 */
  75     uint32_t point_size;            /* R300_GA_POINT_SIZE: 0x421c */
  76     uint32_t point_minmax;          /* R300_GA_POINT_MINMAX: 0x4230 */
  77     uint32_t line_control;          /* R300_GA_LINE_CNTL: 0x4234 */
  78     uint32_t depth_scale_front;  /* R300_SU_POLY_OFFSET_FRONT_SCALE: 0x42a4 */
  79     uint32_t depth_offset_front;/* R300_SU_POLY_OFFSET_FRONT_OFFSET: 0x42a8 */
  80     uint32_t depth_scale_back;    /* R300_SU_POLY_OFFSET_BACK_SCALE: 0x42ac */
  81     uint32_t depth_offset_back;  /* R300_SU_POLY_OFFSET_BACK_OFFSET: 0x42b0 */
  82     uint32_t polygon_offset_enable; /* R300_SU_POLY_OFFSET_ENABLE: 0x42b4 */
  83     uint32_t cull_mode;             /* R300_SU_CULL_MODE: 0x42b8 */
  84     uint32_t line_stipple_config;   /* R300_GA_LINE_STIPPLE_CONFIG: 0x4328 */
  85     uint32_t line_stipple_value;    /* R300_GA_LINE_STIPPLE_VALUE: 0x4260 */
  86     uint32_t color_control;         /* R300_GA_COLOR_CONTROL: 0x4278 */
  87 };
  88
  89 struct r300_rs_block {
  90     uint32_t ip[8]; /* R300_RS_IP_[0-7], R500_RS_IP_[0-7] */
  91     uint32_t count; /* R300_RS_COUNT */
  92     uint32_t inst_count; /* R300_RS_INST_COUNT */
  93     uint32_t inst[8]; /* R300_RS_INST_[0-7] */
  94 };
  95
  96 struct r300_sampler_state {
  97     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
  98     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
  99     uint32_t border_color; /* R300_TX_BORDER_COLOR: 0x45c0 */
 100 };
 101
 102 struct r300_scissor_state {
 103     uint32_t scissor_top_left;     /* R300_SC_SCISSORS_TL: 0x43e0 */
 104     uint32_t scissor_bottom_right; /* R300_SC_SCISSORS_BR: 0x43e4 */
 105 };
 106
 107 struct r300_texture_state {
 108     uint32_t format0; /* R300_TX_FORMAT0: 0x4480 */
 109     uint32_t format1; /* R300_TX_FORMAT1: 0x44c0 */
 110     uint32_t format2; /* R300_TX_FORMAT2: 0x4500 */
 111 };
 112
 113 struct r300_viewport_state {
 114     float xscale;         /* R300_VAP_VPORT_XSCALE:  0x2098 */
 115     float xoffset;        /* R300_VAP_VPORT_XOFFSET: 0x209c */
 116     float yscale;         /* R300_VAP_VPORT_YSCALE:  0x20a0 */
 117     float yoffset;        /* R300_VAP_VPORT_YOFFSET: 0x20a4 */
 118     float zscale;         /* R300_VAP_VPORT_ZSCALE:  0x20a8 */
 119     float zoffset;        /* R300_VAP_VPORT_ZOFFSET: 0x20ac */
 120     uint32_t vte_control; /* R300_VAP_VTE_CNTL:      0x20b0 */
 121 };
 122
 123 #define R300_NEW_BLEND           0x00000001
 124 #define R300_NEW_BLEND_COLOR     0x00000002
 125 #define R300_NEW_CLIP            0x00000004
 126 #define R300_NEW_CONSTANTS       0x00000008
 127 #define R300_NEW_DSA             0x00000010
 128 #define R300_NEW_FRAMEBUFFERS    0x00000020
 129 #define R300_NEW_FRAGMENT_SHADER 0x00000040
 130 #define R300_NEW_RASTERIZER      0x00000080
 131 #define R300_NEW_RS_BLOCK        0x00000100
 132 #define R300_NEW_SAMPLER         0x00000200
 133 #define R300_ANY_NEW_SAMPLERS    0x0001fe00
 134 #define R300_NEW_SCISSOR         0x00020000
 135 #define R300_NEW_TEXTURE         0x00040000
 136 #define R300_ANY_NEW_TEXTURES    0x03fc0000
 137 #define R300_NEW_VERTEX_FORMAT   0x04000000
 138 #define R300_NEW_VERTEX_SHADER   0x08000000
 139 #define R300_NEW_VIEWPORT        0x10000000
 140 #define R300_NEW_KITCHEN_SINK    0x1fffffff
 141
 142 /* The next several objects are not pure Radeon state; they inherit from
 143  * various Gallium classes. */
 144
 145 struct r300_constant_buffer {
 146     /* Buffer of constants */
 147     /* XXX first number should be raised */
 148     float constants[32][4];
 149     /* Total number of constants */
 150     unsigned count;
 151 };
 152
 153 struct r300_texture {
 154     /* Parent class */
 155     struct pipe_texture tex;
 156
 157     /* Offsets into the buffer. */
 158     unsigned offset[PIPE_MAX_TEXTURE_LEVELS];
 159
 160     /* Stride (pitch?) of this texture in bytes */
 161     unsigned stride;
 162
 163     /* Total size of this texture, in bytes. */
 164     unsigned size;
 165
 166     /* Pipe buffer backing this texture. */
 167     struct pipe_buffer* buffer;
 168
 169     /* Registers carrying texture format data. */
 170     struct r300_texture_state state;
 171 };
 172
 173 struct r300_vertex_format {
 174     /* Parent class */
 175     struct vertex_info vinfo;
 176     /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
 177     uint32_t vap_prog_stream_cntl[8];
 178     /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
 179     uint32_t vap_prog_stream_cntl_ext[8];
 180     /* Map of vertex attributes into PVS memory for HW TCL,
 181      * or GA memory for SW TCL. */
 182     int vs_tab[16];
 183     /* Map of rasterizer attributes from GB through RS to US. */
 184     int fs_tab[16];
 185 };
 186
 187 static struct pipe_viewport_state r300_viewport_identity = {
 188     .scale = {1.0, 1.0, 1.0, 1.0},
 189     .translate = {0.0, 0.0, 0.0, 0.0},
 190 };
 191
 192 struct r300_context {
 193     /* Parent class */
 194     struct pipe_context context;
 195
 196     /* The interface to the windowing system, etc. */
 197     struct r300_winsys* winsys;
 198     /* Draw module. Used mostly for SW TCL. */
 199     struct draw_context* draw;
 200
 201     /* Vertex buffer for rendering. */
 202     struct pipe_buffer* vbo;
 203     /* Offset into the VBO. */
 204     size_t vbo_offset;
 205
 206     /* Various CSO state objects. */
 207     /* Blend state. */
 208     struct r300_blend_state* blend_state;
 209     /* Blend color state. */
 210     struct r300_blend_color_state* blend_color_state;
 211     /* User clip planes. */
 212     struct pipe_clip_state clip_state;
 213     /* Shader constants. */
 214     struct r300_constant_buffer shader_constants[PIPE_SHADER_TYPES];
 215     /* Depth, stencil, and alpha state. */
 216     struct r300_dsa_state* dsa_state;
 217     /* Fragment shader. */
 218     struct r300_fragment_shader* fs;
 219     /* Framebuffer state. We currently don't need our own version of this. */
 220     struct pipe_framebuffer_state framebuffer_state;
 221     /* Rasterizer state. */
 222     struct r300_rs_state* rs_state;
 223     /* RS block state. */
 224     struct r300_rs_block* rs_block;
 225     /* Sampler states. */
 226     struct r300_sampler_state* sampler_states[8];
 227     int sampler_count;
 228     /* Scissor state. */
 229     struct r300_scissor_state* scissor_state;
 230     /* Texture states. */
 231     struct r300_texture* textures[8];
 232     int texture_count;
 233     /* Vertex buffers for Gallium. */
 234     struct pipe_vertex_buffer vertex_buffers[PIPE_MAX_ATTRIBS];
 235     int vertex_buffer_count;
 236     /* Vertex information. */
 237     struct r300_vertex_format vertex_info;
 238     /* Vertex shader. */
 239     struct r300_vertex_shader* vs;
 240     /* Viewport state. */
 241     struct r300_viewport_state* viewport_state;
 242     /* Bitmask of dirty state objects. */
 243     uint32_t dirty_state;
 244     /* Flag indicating whether or not the HW is dirty. */
 245     uint32_t dirty_hw;
 246 };
 247
 248 /* Convenience cast wrapper. */
 249 static INLINE struct r300_context* r300_context(struct pipe_context* context)
 250 {
 251     return (struct r300_context*)context;
 252 }
 253
 254 /* Context initialization. */
 255 struct draw_stage* r300_draw_stage(struct r300_context* r300);
 256 void r300_init_state_functions(struct r300_context* r300);
 257 void r300_init_surface_functions(struct r300_context* r300);
 258
 259 #endif /* R300_CONTEXT_H */