2 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
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:
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
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. */
23 #ifndef R300_CONTEXT_H
24 #define R300_CONTEXT_H
26 #include "draw/draw_vertex.h"
28 #include "util/u_blitter.h"
30 #include "pipe/p_context.h"
31 #include "util/u_inlines.h"
33 #include "r300_defines.h"
34 #include "r300_screen.h"
39 struct r300_fragment_shader;
40 struct r300_vertex_shader;
44 struct r300_atom *prev, *next;
45 /* Name, for debugging. */
49 /* Emit the state to the context. */
50 void (*emit)(struct r300_context*, unsigned, void*);
51 /* Upper bound on number of dwords to emit. */
53 /* Whether this atom should be emitted. */
55 /* Another dirty flag that is never automatically cleared. */
59 struct r300_blend_state {
60 uint32_t blend_control; /* R300_RB3D_CBLEND: 0x4e04 */
61 uint32_t alpha_blend_control; /* R300_RB3D_ABLEND: 0x4e08 */
62 uint32_t color_channel_mask; /* R300_RB3D_COLOR_CHANNEL_MASK: 0x4e0c */
63 uint32_t rop; /* R300_RB3D_ROPCNTL: 0x4e18 */
64 uint32_t dither; /* R300_RB3D_DITHER_CTL: 0x4e50 */
67 struct r300_blend_color_state {
68 /* RV515 and earlier */
69 uint32_t blend_color; /* R300_RB3D_BLEND_COLOR: 0x4e10 */
71 uint32_t blend_color_red_alpha; /* R500_RB3D_CONSTANT_COLOR_AR: 0x4ef8 */
72 uint32_t blend_color_green_blue; /* R500_RB3D_CONSTANT_COLOR_GB: 0x4efc */
75 struct r300_dsa_state {
76 uint32_t alpha_function; /* R300_FG_ALPHA_FUNC: 0x4bd4 */
77 uint32_t alpha_reference; /* R500_FG_ALPHA_VALUE: 0x4be0 */
78 uint32_t z_buffer_control; /* R300_ZB_CNTL: 0x4f00 */
79 uint32_t z_stencil_control; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
80 uint32_t stencil_ref_mask; /* R300_ZB_STENCILREFMASK: 0x4f08 */
81 uint32_t stencil_ref_bf; /* R500_ZB_STENCILREFMASK_BF: 0x4fd4 */
83 /* Whether a two-sided stencil is enabled. */
85 /* Whether a fallback should be used for a two-sided stencil ref value. */
86 boolean stencil_ref_bf_fallback;
89 struct r300_rs_state {
90 /* Draw-specific rasterizer state */
91 struct pipe_rasterizer_state rs;
93 uint32_t vap_control_status; /* R300_VAP_CNTL_STATUS: 0x2140 */
94 uint32_t antialiasing_config; /* R300_GB_AA_CONFIG: 0x4020 */
95 uint32_t point_size; /* R300_GA_POINT_SIZE: 0x421c */
96 uint32_t line_control; /* R300_GA_LINE_CNTL: 0x4234 */
97 float depth_scale; /* R300_SU_POLY_OFFSET_FRONT_SCALE: 0x42a4 */
98 /* R300_SU_POLY_OFFSET_BACK_SCALE: 0x42ac */
99 float depth_offset; /* R300_SU_POLY_OFFSET_FRONT_OFFSET: 0x42a8 */
100 /* R300_SU_POLY_OFFSET_BACK_OFFSET: 0x42b0 */
101 uint32_t polygon_offset_enable; /* R300_SU_POLY_OFFSET_ENABLE: 0x42b4 */
102 uint32_t cull_mode; /* R300_SU_CULL_MODE: 0x42b8 */
103 uint32_t line_stipple_config; /* R300_GA_LINE_STIPPLE_CONFIG: 0x4328 */
104 uint32_t line_stipple_value; /* R300_GA_LINE_STIPPLE_VALUE: 0x4260 */
105 uint32_t color_control; /* R300_GA_COLOR_CONTROL: 0x4278 */
106 uint32_t polygon_mode; /* R300_GA_POLY_MODE: 0x4288 */
109 struct r300_rs_block {
110 uint32_t ip[8]; /* R300_RS_IP_[0-7], R500_RS_IP_[0-7] */
111 uint32_t count; /* R300_RS_COUNT */
112 uint32_t inst_count; /* R300_RS_INST_COUNT */
113 uint32_t inst[8]; /* R300_RS_INST_[0-7] */
116 struct r300_sampler_state {
117 struct pipe_sampler_state state;
119 uint32_t filter0; /* R300_TX_FILTER0: 0x4400 */
120 uint32_t filter1; /* R300_TX_FILTER1: 0x4440 */
121 uint32_t border_color; /* R300_TX_BORDER_COLOR: 0x45c0 */
123 /* Min/max LOD must be clamped to [0, last_level], thus
124 * it's dependent on a currently bound texture */
125 unsigned min_lod, max_lod;
128 struct r300_texture_format_state {
129 uint32_t format0; /* R300_TX_FORMAT0: 0x4480 */
130 uint32_t format1; /* R300_TX_FORMAT1: 0x44c0 */
131 uint32_t format2; /* R300_TX_FORMAT2: 0x4500 */
134 struct r300_texture_fb_state {
136 uint32_t colorpitch[R300_MAX_TEXTURE_LEVELS]; /* R300_RB3D_COLORPITCH[0-3]*/
137 uint32_t us_out_fmt; /* R300_US_OUT_FMT[0-3] */
140 uint32_t depthpitch[R300_MAX_TEXTURE_LEVELS]; /* R300_RB3D_DEPTHPITCH */
141 uint32_t zb_format; /* R300_ZB_FORMAT */
144 struct r300_textures_state {
146 struct pipe_sampler_view *fragment_sampler_views[16];
148 /* Sampler states. */
149 struct r300_sampler_state *sampler_states[16];
152 /* These is the merge of the texture and sampler states. */
154 uint32_t tx_enable; /* R300_TX_ENABLE: 0x4101 */
155 struct r300_texture_sampler_state {
156 uint32_t format[3]; /* R300_TX_FORMAT[0-2] */
157 uint32_t filter[2]; /* R300_TX_FILTER[0-1] */
158 uint32_t border_color; /* R300_TX_BORDER_COLOR: 0x45c0 */
159 uint32_t tile_config; /* R300_TX_OFFSET (subset thereof) */
163 struct r300_vertex_stream_state {
164 /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
165 uint32_t vap_prog_stream_cntl[8];
166 /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
167 uint32_t vap_prog_stream_cntl_ext[8];
172 struct r300_vap_output_state {
173 uint32_t vap_vtx_state_cntl; /* R300_VAP_VTX_STATE_CNTL: 0x2180 */
174 uint32_t vap_vsm_vtx_assm; /* R300_VAP_VSM_VTX_ASSM: 0x2184 */
175 uint32_t vap_out_vtx_fmt[2]; /* R300_VAP_OUTPUT_VTX_FMT_[0-1]: 0x2090 */
178 struct r300_viewport_state {
179 float xscale; /* R300_VAP_VPORT_XSCALE: 0x2098 */
180 float xoffset; /* R300_VAP_VPORT_XOFFSET: 0x209c */
181 float yscale; /* R300_VAP_VPORT_YSCALE: 0x20a0 */
182 float yoffset; /* R300_VAP_VPORT_YOFFSET: 0x20a4 */
183 float zscale; /* R300_VAP_VPORT_ZSCALE: 0x20a8 */
184 float zoffset; /* R300_VAP_VPORT_ZOFFSET: 0x20ac */
185 uint32_t vte_control; /* R300_VAP_VTE_CNTL: 0x20b0 */
188 struct r300_ztop_state {
189 uint32_t z_buffer_top; /* R300_ZB_ZTOP: 0x4f14 */
192 /* The next several objects are not pure Radeon state; they inherit from
193 * various Gallium classes. */
195 struct r300_constant_buffer {
196 /* Buffer of constants */
197 float constants[256][4];
198 /* Total number of constants */
204 * This is not a subclass of pipe_query because pipe_query is never
205 * actually fully defined. So, rather than have it as a member, and do
206 * subclass-style casting, we treat pipe_query as an opaque, and just
207 * trust that our state tracker does not ever mess up query objects.
210 /* The kind of query. Currently only OQ is supported. */
212 /* Whether this query is currently active. Only active queries will
213 * get emitted into the command stream, and only active queries get
216 /* The current count of this query. Required to be at least 32 bits. */
218 /* The offset of this query into the query buffer, in bytes. */
220 /* if we've flushed the query */
222 /* if begin has been emitted */
223 boolean begin_emitted;
224 /* Linked list members. */
225 struct r300_query* prev;
226 struct r300_query* next;
229 struct r300_texture {
231 struct pipe_texture tex;
233 /* Offsets into the buffer. */
234 unsigned offset[R300_MAX_TEXTURE_LEVELS];
236 /* A pitch for each mip-level */
237 unsigned pitch[R300_MAX_TEXTURE_LEVELS];
239 /* Size of one zslice or face based on the texture target */
240 unsigned layer_size[R300_MAX_TEXTURE_LEVELS];
242 /* Whether the mipmap level is macrotiled. */
243 enum r300_buffer_tiling mip_macrotile[R300_MAX_TEXTURE_LEVELS];
246 * If non-zero, override the natural texture layout with
247 * a custom stride (in bytes).
249 * \note Mipmapping fails for textures with a non-natural layout!
251 * \sa r300_texture_get_stride
253 unsigned stride_override;
255 /* Total size of this texture, in bytes. */
258 /* Whether this texture has non-power-of-two dimensions
259 * or a user-specified pitch.
260 * It can be either a regular texture or a rectangle one.
264 /* Pipe buffer backing this texture. */
265 struct r300_winsys_buffer *buffer;
267 /* Registers carrying texture format data. */
268 struct r300_texture_format_state state;
269 struct r300_texture_fb_state fb_state;
272 enum r300_buffer_tiling microtile, macrotile;
275 struct r300_vertex_info {
277 struct vertex_info vinfo;
279 /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
280 uint32_t vap_prog_stream_cntl[8];
281 /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
282 uint32_t vap_prog_stream_cntl_ext[8];
285 struct r300_vertex_element_state {
287 struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
289 struct r300_vertex_stream_state vertex_stream;
292 extern struct pipe_viewport_state r300_viewport_identity;
294 struct r300_context {
296 struct pipe_context context;
298 /* Emission of drawing packets. */
299 void (*emit_draw_arrays_immediate)(
300 struct r300_context *r300,
301 unsigned mode, unsigned start, unsigned count);
303 void (*emit_draw_arrays)(
304 struct r300_context *r300,
305 unsigned mode, unsigned count);
307 void (*emit_draw_elements)(
308 struct r300_context *r300, struct pipe_buffer* indexBuffer,
309 unsigned indexSize, unsigned minIndex, unsigned maxIndex,
310 unsigned mode, unsigned start, unsigned count);
313 /* The interface to the windowing system, etc. */
314 struct r300_winsys_screen *rws;
316 struct r300_screen *screen;
317 /* Draw module. Used mostly for SW TCL. */
318 struct draw_context* draw;
319 /* Accelerated blit support. */
320 struct blitter_context* blitter;
322 /* Vertex buffer for rendering. */
323 struct pipe_buffer* vbo;
324 /* Offset into the VBO. */
327 /* Occlusion query buffer. */
328 struct pipe_buffer* oqbo;
330 struct r300_query *query_current;
331 struct r300_query query_list;
333 /* Various CSO state objects. */
334 /* Beginning of atom list. */
335 struct r300_atom atom_list;
337 struct r300_atom blend_state;
338 /* Blend color state. */
339 struct r300_atom blend_color_state;
340 /* User clip planes. */
341 struct r300_atom clip_state;
342 /* Shader constants. */
343 struct r300_constant_buffer shader_constants[PIPE_SHADER_TYPES];
344 /* Depth, stencil, and alpha state. */
345 struct r300_atom dsa_state;
346 /* Fragment shader. */
347 struct r300_fragment_shader* fs;
348 /* Framebuffer state. */
349 struct r300_atom fb_state;
350 /* Rasterizer state. */
351 struct r300_atom rs_state;
352 /* RS block state. */
353 struct r300_atom rs_block_state;
355 struct r300_atom scissor_state;
356 /* Textures state. */
357 struct r300_atom textures_state;
358 /* Vertex stream formatting state. */
359 struct r300_atom vertex_stream_state;
360 /* VAP (vertex shader) output mapping state. */
361 struct r300_atom vap_output_state;
363 struct r300_atom vs_state;
364 /* Viewport state. */
365 struct r300_atom viewport_state;
367 struct r300_atom ztop_state;
369 struct r300_atom pvs_flush;
370 /* Texture cache invalidate. */
371 struct r300_atom texture_cache_inval;
373 /* Invariant state. This must be emitted to get the engine started. */
374 struct r300_atom invariant_state;
376 /* Vertex buffers for Gallium. */
377 struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
378 int vertex_buffer_count;
379 int vertex_buffer_max_index;
380 /* Vertex elements for Gallium. */
381 struct r300_vertex_element_state *velems;
384 /* Vertex info for Draw. */
385 struct vertex_info vertex_info;
387 struct pipe_stencil_ref stencil_ref;
389 struct pipe_clip_state clip;
391 struct pipe_viewport_state viewport;
393 /* Bitmask of dirty state objects. */
394 uint32_t dirty_state;
395 /* Flag indicating whether or not the HW is dirty. */
397 /* Whether polygon offset is enabled. */
398 boolean polygon_offset_enabled;
399 /* Z buffer bit depth. */
400 uint32_t zbuffer_bpp;
401 /* Whether scissor is enabled. */
402 boolean scissor_enabled;
403 /* Whether rendering is conditional and should be skipped. */
404 boolean skip_rendering;
405 /* Whether the two-sided stencil ref value is different for front and
406 * back faces, and fallback should be used for r3xx-r4xx. */
407 boolean stencil_ref_bf_fallback;
408 /* upload managers */
409 struct u_upload_mgr *upload_vb;
410 struct u_upload_mgr *upload_ib;
413 /* Convenience cast wrapper. */
414 static INLINE struct r300_texture* r300_texture(struct pipe_texture* tex)
416 return (struct r300_texture*)tex;
419 static INLINE struct r300_context* r300_context(struct pipe_context* context)
421 return (struct r300_context*)context;
425 struct pipe_context* r300_create_context(struct pipe_screen* screen,
428 /* Context initialization. */
429 struct draw_stage* r300_draw_stage(struct r300_context* r300);
430 void r300_init_state_functions(struct r300_context* r300);
431 void r300_init_surface_functions(struct r300_context* r300);
432 void r300_init_tex_functions( struct pipe_context *pipe );
434 static INLINE boolean CTX_DBG_ON(struct r300_context * ctx, unsigned flags)
436 return SCREEN_DBG_ON(ctx->screen, flags);
439 static INLINE void CTX_DBG(struct r300_context * ctx, unsigned flags,
440 const char * fmt, ...)
442 if (CTX_DBG_ON(ctx, flags)) {
445 vfprintf(stderr, fmt, va);
450 #define DBG_ON CTX_DBG_ON
453 #endif /* R300_CONTEXT_H */