r300g: always emit the correct max vertex index to avoid DRM errors
[mesa.git] / 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_vertex.h"
27
28 #include "util/u_blitter.h"
29
30 #include "pipe/p_context.h"
31 #include "util/u_inlines.h"
32
33 #include "r300_screen.h"
34
35 struct r300_context;
36
37 struct r300_fragment_shader;
38 struct r300_vertex_shader;
39
40 struct r300_atom {
41 /* List pointers. */
42 struct r300_atom *prev, *next;
43 /* Name, for debugging. */
44 const char* name;
45 /* Opaque state. */
46 void* state;
47 /* Emit the state to the context. */
48 void (*emit)(struct r300_context*, void*);
49 /* Upper bound on number of dwords to emit. */
50 unsigned size;
51 /* Whether this atom should be emitted. */
52 boolean dirty;
53 /* Another dirty flag that is never automatically cleared. */
54 boolean always_dirty;
55 };
56
57 struct r300_blend_state {
58 uint32_t blend_control; /* R300_RB3D_CBLEND: 0x4e04 */
59 uint32_t alpha_blend_control; /* R300_RB3D_ABLEND: 0x4e08 */
60 uint32_t color_channel_mask; /* R300_RB3D_COLOR_CHANNEL_MASK: 0x4e0c */
61 uint32_t rop; /* R300_RB3D_ROPCNTL: 0x4e18 */
62 uint32_t dither; /* R300_RB3D_DITHER_CTL: 0x4e50 */
63 };
64
65 struct r300_blend_color_state {
66 /* RV515 and earlier */
67 uint32_t blend_color; /* R300_RB3D_BLEND_COLOR: 0x4e10 */
68 /* R520 and newer */
69 uint32_t blend_color_red_alpha; /* R500_RB3D_CONSTANT_COLOR_AR: 0x4ef8 */
70 uint32_t blend_color_green_blue; /* R500_RB3D_CONSTANT_COLOR_GB: 0x4efc */
71 };
72
73 struct r300_dsa_state {
74 uint32_t alpha_function; /* R300_FG_ALPHA_FUNC: 0x4bd4 */
75 uint32_t alpha_reference; /* R500_FG_ALPHA_VALUE: 0x4be0 */
76 uint32_t z_buffer_control; /* R300_ZB_CNTL: 0x4f00 */
77 uint32_t z_stencil_control; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
78 uint32_t stencil_ref_mask; /* R300_ZB_STENCILREFMASK: 0x4f08 */
79 uint32_t stencil_ref_bf; /* R500_ZB_STENCILREFMASK_BF: 0x4fd4 */
80 };
81
82 struct r300_rs_state {
83 /* Draw-specific rasterizer state */
84 struct pipe_rasterizer_state rs;
85
86 uint32_t vap_control_status; /* R300_VAP_CNTL_STATUS: 0x2140 */
87 uint32_t antialiasing_config; /* R300_GB_AA_CONFIG: 0x4020 */
88 uint32_t point_size; /* R300_GA_POINT_SIZE: 0x421c */
89 uint32_t point_minmax; /* R300_GA_POINT_MINMAX: 0x4230 */
90 uint32_t line_control; /* R300_GA_LINE_CNTL: 0x4234 */
91 float depth_scale; /* R300_SU_POLY_OFFSET_FRONT_SCALE: 0x42a4 */
92 /* R300_SU_POLY_OFFSET_BACK_SCALE: 0x42ac */
93 float depth_offset; /* R300_SU_POLY_OFFSET_FRONT_OFFSET: 0x42a8 */
94 /* R300_SU_POLY_OFFSET_BACK_OFFSET: 0x42b0 */
95 uint32_t polygon_offset_enable; /* R300_SU_POLY_OFFSET_ENABLE: 0x42b4 */
96 uint32_t cull_mode; /* R300_SU_CULL_MODE: 0x42b8 */
97 uint32_t line_stipple_config; /* R300_GA_LINE_STIPPLE_CONFIG: 0x4328 */
98 uint32_t line_stipple_value; /* R300_GA_LINE_STIPPLE_VALUE: 0x4260 */
99 uint32_t color_control; /* R300_GA_COLOR_CONTROL: 0x4278 */
100 uint32_t polygon_mode; /* R300_GA_POLY_MODE: 0x4288 */
101 };
102
103 struct r300_rs_block {
104 uint32_t ip[8]; /* R300_RS_IP_[0-7], R500_RS_IP_[0-7] */
105 uint32_t count; /* R300_RS_COUNT */
106 uint32_t inst_count; /* R300_RS_INST_COUNT */
107 uint32_t inst[8]; /* R300_RS_INST_[0-7] */
108 };
109
110 struct r300_sampler_state {
111 struct pipe_sampler_state state;
112
113 uint32_t filter0; /* R300_TX_FILTER0: 0x4400 */
114 uint32_t filter1; /* R300_TX_FILTER1: 0x4440 */
115 uint32_t border_color; /* R300_TX_BORDER_COLOR: 0x45c0 */
116
117 /* Min/max LOD must be clamped to [0, last_level], thus
118 * it's dependent on a currently bound texture */
119 unsigned min_lod, max_lod;
120 };
121
122 struct r300_texture_state {
123 uint32_t format0; /* R300_TX_FORMAT0: 0x4480 */
124 uint32_t format1; /* R300_TX_FORMAT1: 0x44c0 */
125 uint32_t format2; /* R300_TX_FORMAT2: 0x4500 */
126 };
127
128 struct r300_texture_fb_state {
129 /* Colorbuffer. */
130 uint32_t colorpitch[PIPE_MAX_TEXTURE_LEVELS]; /* R300_RB3D_COLORPITCH[0-3]*/
131 uint32_t us_out_fmt; /* R300_US_OUT_FMT[0-3] */
132
133 /* Zbuffer. */
134 uint32_t depthpitch[PIPE_MAX_TEXTURE_LEVELS]; /* R300_RB3D_DEPTHPITCH */
135 uint32_t zb_format; /* R300_ZB_FORMAT */
136 };
137
138 struct r300_viewport_state {
139 float xscale; /* R300_VAP_VPORT_XSCALE: 0x2098 */
140 float xoffset; /* R300_VAP_VPORT_XOFFSET: 0x209c */
141 float yscale; /* R300_VAP_VPORT_YSCALE: 0x20a0 */
142 float yoffset; /* R300_VAP_VPORT_YOFFSET: 0x20a4 */
143 float zscale; /* R300_VAP_VPORT_ZSCALE: 0x20a8 */
144 float zoffset; /* R300_VAP_VPORT_ZOFFSET: 0x20ac */
145 uint32_t vte_control; /* R300_VAP_VTE_CNTL: 0x20b0 */
146 };
147
148 struct r300_ztop_state {
149 uint32_t z_buffer_top; /* R300_ZB_ZTOP: 0x4f14 */
150 };
151
152 #define R300_NEW_FRAGMENT_SHADER 0x00000020
153 #define R300_NEW_FRAGMENT_SHADER_CONSTANTS 0x00000040
154 #define R300_NEW_SAMPLER 0x00000200
155 #define R300_ANY_NEW_SAMPLERS 0x0001fe00
156 #define R300_NEW_TEXTURE 0x00040000
157 #define R300_ANY_NEW_TEXTURES 0x03fc0000
158 #define R300_NEW_VERTEX_SHADER_CONSTANTS 0x10000000
159 #define R300_NEW_QUERY 0x40000000
160 #define R300_NEW_KITCHEN_SINK 0x7fffffff
161
162 /* The next several objects are not pure Radeon state; they inherit from
163 * various Gallium classes. */
164
165 struct r300_constant_buffer {
166 /* Buffer of constants */
167 float constants[256][4];
168 /* Total number of constants */
169 unsigned count;
170 };
171
172 /* Query object.
173 *
174 * This is not a subclass of pipe_query because pipe_query is never
175 * actually fully defined. So, rather than have it as a member, and do
176 * subclass-style casting, we treat pipe_query as an opaque, and just
177 * trust that our state tracker does not ever mess up query objects.
178 */
179 struct r300_query {
180 /* The kind of query. Currently only OQ is supported. */
181 unsigned type;
182 /* Whether this query is currently active. Only active queries will
183 * get emitted into the command stream, and only active queries get
184 * tallied. */
185 boolean active;
186 /* The current count of this query. Required to be at least 32 bits. */
187 unsigned int count;
188 /* The offset of this query into the query buffer, in bytes. */
189 unsigned offset;
190 /* if we've flushed the query */
191 boolean flushed;
192 /* if begin has been emitted */
193 boolean begin_emitted;
194 /* Linked list members. */
195 struct r300_query* prev;
196 struct r300_query* next;
197 };
198
199 enum r300_buffer_tiling {
200 R300_BUFFER_LINEAR = 0,
201 R300_BUFFER_TILED,
202 R300_BUFFER_SQUARETILED
203 };
204
205 struct r300_texture {
206 /* Parent class */
207 struct pipe_texture tex;
208
209 /* Offsets into the buffer. */
210 unsigned offset[PIPE_MAX_TEXTURE_LEVELS];
211
212 /* A pitch for each mip-level */
213 unsigned pitch[PIPE_MAX_TEXTURE_LEVELS];
214
215 /* Size of one zslice or face based on the texture target */
216 unsigned layer_size[PIPE_MAX_TEXTURE_LEVELS];
217
218 /* Whether the mipmap level is macrotiled. */
219 enum r300_buffer_tiling mip_macrotile[PIPE_MAX_TEXTURE_LEVELS];
220
221 /**
222 * If non-zero, override the natural texture layout with
223 * a custom stride (in bytes).
224 *
225 * \note Mipmapping fails for textures with a non-natural layout!
226 *
227 * \sa r300_texture_get_stride
228 */
229 unsigned stride_override;
230
231 /* Total size of this texture, in bytes. */
232 unsigned size;
233
234 /* Whether this texture has non-power-of-two dimensions.
235 * It can be either a regular texture or a rectangle one.
236 */
237 boolean is_npot;
238
239 /* Pipe buffer backing this texture. */
240 struct pipe_buffer* buffer;
241
242 /* Registers carrying texture format data. */
243 struct r300_texture_state state;
244 struct r300_texture_fb_state fb_state;
245
246 /* Buffer tiling */
247 enum r300_buffer_tiling microtile, macrotile;
248 };
249
250 struct r300_vertex_info {
251 /* Parent class */
252 struct vertex_info vinfo;
253
254 /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
255 uint32_t vap_prog_stream_cntl[8];
256 /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
257 uint32_t vap_prog_stream_cntl_ext[8];
258 };
259
260 extern struct pipe_viewport_state r300_viewport_identity;
261
262 struct r300_context {
263 /* Parent class */
264 struct pipe_context context;
265
266 /* The interface to the windowing system, etc. */
267 struct radeon_winsys* winsys;
268 /* Draw module. Used mostly for SW TCL. */
269 struct draw_context* draw;
270 /* Accelerated blit support. */
271 struct blitter_context* blitter;
272
273 /* Vertex buffer for rendering. */
274 struct pipe_buffer* vbo;
275 /* Offset into the VBO. */
276 size_t vbo_offset;
277
278 /* Occlusion query buffer. */
279 struct pipe_buffer* oqbo;
280 /* Query list. */
281 struct r300_query *query_current;
282 struct r300_query query_list;
283
284 /* Vertex formatting information. */
285 struct r300_atom vertex_format_state;
286
287 /* Various CSO state objects. */
288 /* Beginning of atom list. */
289 struct r300_atom atom_list;
290 /* Blend state. */
291 struct r300_atom blend_state;
292 /* Blend color state. */
293 struct r300_atom blend_color_state;
294 /* User clip planes. */
295 struct r300_atom clip_state;
296 /* Shader constants. */
297 struct r300_constant_buffer shader_constants[PIPE_SHADER_TYPES];
298 /* Depth, stencil, and alpha state. */
299 struct r300_atom dsa_state;
300 /* Fragment shader. */
301 struct r300_fragment_shader* fs;
302 /* Framebuffer state. */
303 struct r300_atom fb_state;
304 /* Rasterizer state. */
305 struct r300_atom rs_state;
306 /* RS block state. */
307 struct r300_atom rs_block_state;
308 /* Sampler states. */
309 struct r300_sampler_state* sampler_states[8];
310 int sampler_count;
311 /* Scissor state. */
312 struct r300_atom scissor_state;
313 /* Texture states. */
314 struct r300_texture* textures[8];
315 int texture_count;
316 /* Vertex shader. */
317 struct r300_atom vs_state;
318 /* Viewport state. */
319 struct r300_atom viewport_state;
320 /* ZTOP state. */
321 struct r300_atom ztop_state;
322
323 /* Invariant state. This must be emitted to get the engine started. */
324 struct r300_atom invariant_state;
325
326 /* Vertex buffers for Gallium. */
327 struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
328 int vertex_buffer_count;
329 int vertex_buffer_max_index;
330 /* Vertex elements for Gallium. */
331 struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
332 int vertex_element_count;
333
334 struct pipe_stencil_ref stencil_ref;
335
336 /* Bitmask of dirty state objects. */
337 uint32_t dirty_state;
338 /* Flag indicating whether or not the HW is dirty. */
339 uint32_t dirty_hw;
340 /* Whether the TCL engine should be in bypass mode. */
341 boolean tcl_bypass;
342 /* Whether polygon offset is enabled. */
343 boolean polygon_offset_enabled;
344 /* Z buffer bit depth. */
345 uint32_t zbuffer_bpp;
346 };
347
348 /* Convenience cast wrapper. */
349 static INLINE struct r300_context* r300_context(struct pipe_context* context)
350 {
351 return (struct r300_context*)context;
352 }
353
354
355 struct pipe_context* r300_create_context(struct pipe_screen* screen,
356 void *priv);
357
358 /* Context initialization. */
359 struct draw_stage* r300_draw_stage(struct r300_context* r300);
360 void r300_init_state_functions(struct r300_context* r300);
361 void r300_init_surface_functions(struct r300_context* r300);
362
363 static INLINE boolean CTX_DBG_ON(struct r300_context * ctx, unsigned flags)
364 {
365 return SCREEN_DBG_ON(r300_screen(ctx->context.screen), flags);
366 }
367
368 static INLINE void CTX_DBG(struct r300_context * ctx, unsigned flags,
369 const char * fmt, ...)
370 {
371 if (CTX_DBG_ON(ctx, flags)) {
372 va_list va;
373 va_start(va, fmt);
374 debug_vprintf(fmt, va);
375 va_end(va);
376 }
377 }
378
379 #define DBG_ON CTX_DBG_ON
380 #define DBG CTX_DBG
381
382 #endif /* R300_CONTEXT_H */
383