1 /**************************************************************************
2 *
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28#ifndef I915CONTEXT_INC
29#define I915CONTEXT_INC
30
31#include "intel_context.h"
32
33#define I915_FALLBACK_TEXTURE		 0x1000
34#define I915_FALLBACK_COLORMASK		 0x2000
35#define I915_FALLBACK_STENCIL		 0x4000
36#define I915_FALLBACK_STIPPLE		 0x8000
37#define I915_FALLBACK_PROGRAM		 0x10000
38#define I915_FALLBACK_LOGICOP		 0x20000
39#define I915_FALLBACK_POLYGON_SMOOTH	 0x40000
40#define I915_FALLBACK_POINT_SMOOTH	 0x80000
41#define I915_FALLBACK_POINT_SPRITE_COORD_ORIGIN	 0x100000
42#define I915_FALLBACK_DRAW_OFFSET	 0x200000
43#define I915_FALLBACK_COORD_REPLACE	 0x400000
44
45#define I915_UPLOAD_CTX              0x1
46#define I915_UPLOAD_BUFFERS          0x2
47#define I915_UPLOAD_STIPPLE          0x4
48#define I915_UPLOAD_PROGRAM          0x8
49#define I915_UPLOAD_CONSTANTS        0x10
50#define I915_UPLOAD_INVARIENT        0x40
51#define I915_UPLOAD_DEFAULTS         0x80
52#define I915_UPLOAD_RASTER_RULES     0x100
53#define I915_UPLOAD_BLEND            0x200
54#define I915_UPLOAD_TEX(i)           (0x00010000<<(i))
55#define I915_UPLOAD_TEX_ALL          (0x00ff0000)
56#define I915_UPLOAD_TEX_0_SHIFT      16
57
58
59/* State structure offsets - these will probably disappear.
60 */
61#define I915_DESTREG_CBUFADDR0 0
62#define I915_DESTREG_CBUFADDR1 1
63#define I915_DESTREG_DBUFADDR0 3
64#define I915_DESTREG_DBUFADDR1 4
65#define I915_DESTREG_DV0 6
66#define I915_DESTREG_DV1 7
67#define I915_DESTREG_SENABLE 8
68#define I915_DESTREG_SR0 9
69#define I915_DESTREG_SR1 10
70#define I915_DESTREG_SR2 11
71#define I915_DESTREG_DRAWRECT0 12
72#define I915_DESTREG_DRAWRECT1 13
73#define I915_DESTREG_DRAWRECT2 14
74#define I915_DESTREG_DRAWRECT3 15
75#define I915_DESTREG_DRAWRECT4 16
76#define I915_DESTREG_DRAWRECT5 17
77#define I915_DEST_SETUP_SIZE 18
78
79#define I915_CTXREG_STATE4		0
80#define I915_CTXREG_LI			1
81#define I915_CTXREG_LIS2		2
82#define I915_CTXREG_LIS4		3
83#define I915_CTXREG_LIS5		4
84#define I915_CTXREG_LIS6		5
85#define I915_CTXREG_BF_STENCIL_OPS	6
86#define I915_CTXREG_BF_STENCIL_MASKS	7
87#define I915_CTX_SETUP_SIZE		8
88
89#define I915_BLENDREG_IAB		0
90#define I915_BLENDREG_BLENDCOLOR0	1
91#define I915_BLENDREG_BLENDCOLOR1	2
92#define I915_BLEND_SETUP_SIZE		3
93
94#define I915_STPREG_ST0        0
95#define I915_STPREG_ST1        1
96#define I915_STP_SETUP_SIZE    2
97
98#define I915_TEXREG_MS3        1
99#define I915_TEXREG_MS4        2
100#define I915_TEXREG_SS2        3
101#define I915_TEXREG_SS3        4
102#define I915_TEXREG_SS4        5
103#define I915_TEX_SETUP_SIZE    6
104
105#define I915_DEFREG_C0    0
106#define I915_DEFREG_C1    1
107#define I915_DEFREG_S0    2
108#define I915_DEFREG_S1    3
109#define I915_DEFREG_Z0    4
110#define I915_DEFREG_Z1    5
111#define I915_DEF_SETUP_SIZE    6
112
113enum {
114   I915_RASTER_RULES,
115   I915_RASTER_RULES_SETUP_SIZE,
116};
117
118#define I915_MAX_CONSTANT      32
119#define I915_CONSTANT_SIZE     (2+(4*I915_MAX_CONSTANT))
120
121#define I915_MAX_TEX_INDIRECT 4
122#define I915_MAX_TEX_INSN     32
123#define I915_MAX_ALU_INSN     64
124#define I915_MAX_DECL_INSN    27
125#define I915_MAX_TEMPORARY    16
126
127#define I915_MAX_INSN          (I915_MAX_DECL_INSN + \
128				I915_MAX_TEX_INSN + \
129				I915_MAX_ALU_INSN)
130
131/* Maximum size of the program packet, which matches the limits on
132 * decl, tex, and ALU instructions.
133 */
134#define I915_PROGRAM_SIZE      (I915_MAX_INSN * 3 + 1)
135
136/* Hardware version of a parsed fragment program.  "Derived" from the
137 * mesa fragment_program struct.
138 */
139struct i915_fragment_program
140{
141   struct gl_fragment_program FragProg;
142
143   bool translated;
144   bool params_uptodate;
145   bool on_hardware;
146   bool error;             /* If program is malformed for any reason. */
147
148   /** Record of which phases R registers were last written in. */
149   GLuint register_phases[16];
150   GLuint indirections;
151   GLuint nr_tex_indirect;
152   GLuint nr_tex_insn;
153   GLuint nr_alu_insn;
154   GLuint nr_decl_insn;
155
156
157
158
159   /* TODO: split between the stored representation of a program and
160    * the state used to build that representation.
161    */
162   struct gl_context *ctx;
163
164   /* declarations contains the packet header. */
165   GLuint declarations[I915_MAX_DECL_INSN * 3 + 1];
166   GLuint program[(I915_MAX_TEX_INSN + I915_MAX_ALU_INSN) * 3];
167
168   GLfloat constant[I915_MAX_CONSTANT][4];
169   GLuint constant_flags[I915_MAX_CONSTANT];
170   GLuint nr_constants;
171
172   GLuint *csr;                 /* Cursor, points into program.
173                                 */
174
175   GLuint *decl;                /* Cursor, points into declarations.
176                                 */
177
178   GLuint decl_s;               /* flags for which s regs need to be decl'd */
179   GLuint decl_t;               /* flags for which t regs need to be decl'd */
180
181   GLuint temp_flag;            /* Tracks temporary regs which are in
182                                 * use.
183                                 */
184
185   GLuint utemp_flag;           /* Tracks TYPE_U temporary regs which are in
186                                 * use.
187                                 */
188
189
190   /* Track which R registers are "live" for each instruction.
191    * A register is live between the time it's written to and the last time
192    * it's read. */
193   GLuint usedRegs[I915_MAX_INSN];
194
195   /* Helpers for i915_fragprog.c:
196    */
197   GLuint wpos_tex;
198   bool depth_written;
199
200   struct
201   {
202      GLuint reg;               /* Hardware constant idx */
203      const GLfloat *values;    /* Pointer to tracked values */
204   } param[I915_MAX_CONSTANT];
205   GLuint nr_params;
206};
207
208
209
210
211
212
213
214#define I915_TEX_UNITS 8
215
216
217struct i915_hw_state
218{
219   GLuint Ctx[I915_CTX_SETUP_SIZE];
220   GLuint Blend[I915_BLEND_SETUP_SIZE];
221   GLuint Buffer[I915_DEST_SETUP_SIZE];
222   GLuint Stipple[I915_STP_SETUP_SIZE];
223   GLuint Defaults[I915_DEF_SETUP_SIZE];
224   GLuint RasterRules[I915_RASTER_RULES_SETUP_SIZE];
225   GLuint Tex[I915_TEX_UNITS][I915_TEX_SETUP_SIZE];
226   GLuint Constant[I915_CONSTANT_SIZE];
227   GLuint ConstantSize;
228   GLuint Program[I915_PROGRAM_SIZE];
229   GLuint ProgramSize;
230
231   /* Region pointers for relocation:
232    */
233   struct intel_region *draw_region;
234   struct intel_region *depth_region;
235/*    struct intel_region *tex_region[I915_TEX_UNITS]; */
236
237   /* Regions aren't actually that appropriate here as the memory may
238    * be from a PBO or FBO.  Will have to do this for draw and depth for
239    * FBO's...
240    */
241   drm_intel_bo *tex_buffer[I915_TEX_UNITS];
242   GLuint tex_offset[I915_TEX_UNITS];
243
244
245   GLuint active;               /* I915_UPLOAD_* */
246   GLuint emitted;              /* I915_UPLOAD_* */
247};
248
249struct i915_context
250{
251   struct intel_context intel;
252
253   GLuint last_ReallyEnabled;
254   GLuint lodbias_ss2[MAX_TEXTURE_UNITS];
255
256
257   struct i915_fragment_program *current_program;
258
259   drm_intel_bo *current_vb_bo;
260   unsigned int current_vertex_size;
261
262   struct i915_hw_state state;
263   uint32_t last_draw_offset;
264   GLuint last_sampler;
265};
266
267
268#define I915_STATECHANGE(i915, flag)					\
269do {									\
270   INTEL_FIREVERTICES( &(i915)->intel );					\
271   (i915)->state.emitted &= ~(flag);					\
272} while (0)
273
274#define I915_ACTIVESTATE(i915, flag, mode)			\
275do {								\
276   INTEL_FIREVERTICES( &(i915)->intel );				\
277   if (mode)							\
278      (i915)->state.active |= (flag);				\
279   else								\
280      (i915)->state.active &= ~(flag);				\
281} while (0)
282
283
284/*======================================================================
285 * i915_vtbl.c
286 */
287extern void i915InitVtbl(struct i915_context *i915);
288
289extern void
290i915_state_draw_region(struct intel_context *intel,
291                       struct i915_hw_state *state,
292                       struct intel_region *color_region,
293                       struct intel_region *depth_region);
294
295
296
297#define SZ_TO_HW(sz)  ((sz-2)&0x3)
298#define EMIT_SZ(sz)   (EMIT_1F + (sz) - 1)
299#define EMIT_ATTR( ATTR, STYLE, S4, SZ )				\
300do {									\
301   intel->vertex_attrs[intel->vertex_attr_count].attrib = (ATTR);	\
302   intel->vertex_attrs[intel->vertex_attr_count].format = (STYLE);	\
303   s4 |= S4;								\
304   intel->vertex_attr_count++;						\
305   offset += (SZ);							\
306} while (0)
307
308#define EMIT_PAD( N )							\
309do {									\
310   intel->vertex_attrs[intel->vertex_attr_count].attrib = 0;		\
311   intel->vertex_attrs[intel->vertex_attr_count].format = EMIT_PAD;	\
312   intel->vertex_attrs[intel->vertex_attr_count].offset = (N);		\
313   intel->vertex_attr_count++;						\
314   offset += (N);							\
315} while (0)
316
317
318
319/*======================================================================
320 * i915_context.c
321 */
322extern bool i915CreateContext(int api,
323			      const struct gl_config * mesaVis,
324			      __DRIcontext * driContextPriv,
325                              unsigned major_version,
326                              unsigned minor_version,
327                              unsigned *error,
328			      void *sharedContextPrivate);
329
330
331/*======================================================================
332 * i915_debug.c
333 */
334extern void i915_disassemble_program(const GLuint * program, GLuint sz);
335extern void i915_print_ureg(const char *msg, GLuint ureg);
336
337
338/*======================================================================
339 * i915_state.c
340 */
341extern void i915InitStateFunctions(struct dd_function_table *functions);
342extern void i915InitState(struct i915_context *i915);
343extern void i915_update_stencil(struct gl_context * ctx);
344extern void i915_update_provoking_vertex(struct gl_context *ctx);
345extern void i915_update_sprite_point_enable(struct gl_context *ctx);
346
347
348/*======================================================================
349 * i915_tex.c
350 */
351extern void i915UpdateTextureState(struct intel_context *intel);
352extern void i915InitTextureFuncs(struct dd_function_table *functions);
353
354/*======================================================================
355 * i915_fragprog.c
356 */
357extern void i915ValidateFragmentProgram(struct i915_context *i915);
358extern void i915InitFragProgFuncs(struct dd_function_table *functions);
359
360/*======================================================================
361 * Inline conversion functions.  These are better-typed than the
362 * macros used previously:
363 */
364static INLINE struct i915_context *
365i915_context(struct gl_context * ctx)
366{
367   return (struct i915_context *) ctx;
368}
369
370
371
372#define I915_CONTEXT(ctx)	i915_context(ctx)
373
374
375
376#endif
377