1 /**************************************************************************
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
28 #ifndef INTELCONTEXT_INC
29 #define INTELCONTEXT_INC
33 #include "main/mtypes.h"
36 #include "dri_metaops.h"
38 #include "intel_bufmgr.h"
40 #include "intel_screen.h"
41 #include "intel_tex_obj.h"
43 #include "tnl/t_vertex.h"
45 #define TAG(x) intel##x
46 #include "tnl_dd/t_dd_vertex.h"
49 #define DV_PF_555 (1<<8)
50 #define DV_PF_565 (2<<8)
51 #define DV_PF_8888 (3<<8)
52 #define DV_PF_4444 (8<<8)
53 #define DV_PF_1555 (9<<8)
58 typedef void (*intel_tri_func
) (struct intel_context
*, intelVertex
*,
59 intelVertex
*, intelVertex
*);
60 typedef void (*intel_line_func
) (struct intel_context
*, intelVertex
*,
62 typedef void (*intel_point_func
) (struct intel_context
*, intelVertex
*);
65 * Bits for intel->Fallback field
68 #define INTEL_FALLBACK_DRAW_BUFFER 0x1
69 #define INTEL_FALLBACK_READ_BUFFER 0x2
70 #define INTEL_FALLBACK_DEPTH_BUFFER 0x4
71 #define INTEL_FALLBACK_STENCIL_BUFFER 0x8
72 #define INTEL_FALLBACK_USER 0x10
73 #define INTEL_FALLBACK_RENDERMODE 0x20
74 #define INTEL_FALLBACK_TEXTURE 0x40
75 #define INTEL_FALLBACK_DRIVER 0x1000 /**< first for drivers */
78 extern void intelFallback(struct intel_context
*intel
, GLbitfield bit
,
80 #define FALLBACK( intel, bit, mode ) intelFallback( intel, bit, mode )
83 #define INTEL_WRITE_PART 0x1
84 #define INTEL_WRITE_FULL 0x2
85 #define INTEL_READ 0x4
87 #define INTEL_MAX_FIXUP 64
89 struct intel_sync_object
{
90 struct gl_sync_object Base
;
92 /** Batch associated with this sync object */
97 * intel_context is derived from Mesa's context class: GLcontext.
101 GLcontext ctx
; /**< base class, must be first field */
105 void (*destroy
) (struct intel_context
* intel
);
106 void (*emit_state
) (struct intel_context
* intel
);
107 void (*finish_batch
) (struct intel_context
* intel
);
108 void (*new_batch
) (struct intel_context
* intel
);
109 void (*emit_invarient_state
) (struct intel_context
* intel
);
110 void (*update_texture_state
) (struct intel_context
* intel
);
112 void (*render_start
) (struct intel_context
* intel
);
113 void (*render_prevalidate
) (struct intel_context
* intel
);
114 void (*set_draw_region
) (struct intel_context
* intel
,
115 struct intel_region
* draw_regions
[],
116 struct intel_region
* depth_region
,
119 void (*reduced_primitive_state
) (struct intel_context
* intel
,
122 GLboolean (*check_vertex_size
) (struct intel_context
* intel
,
124 void (*invalidate_state
) (struct intel_context
*intel
,
127 void (*assert_not_dirty
) (struct intel_context
*intel
);
129 void (*debug_batch
)(struct intel_context
*intel
);
132 struct dri_metaops meta
;
134 GLbitfield Fallback
; /**< mask of INTEL_FALLBACK_x bits */
138 unsigned int maxBatchSize
;
141 * Generation number of the hardware: 2 is 8xx, 3 is 9xx pre-965, 4 is 965.
144 GLboolean needs_ff_sync
;
147 GLboolean has_luminance_srgb
;
148 GLboolean has_xrgb_textures
;
152 struct intel_batchbuffer
*batch
;
153 drm_intel_bo
*first_post_swapbuffers_batch
;
154 GLboolean need_throttle
;
155 GLboolean no_batch_wrap
;
160 uint32_t primitive
; /**< Current hardware primitive type */
161 void (*flush
) (struct intel_context
*);
162 GLubyte
*start_ptr
; /**< for i8xx */
165 unsigned int start_offset
; /**< Byte offset of primitive sequence */
166 unsigned int current_offset
; /**< Byte offset of next vertex */
167 unsigned int count
; /**< Number of vertices in current primitive */
175 /* Offsets of fields within the current vertex:
182 struct tnl_attr_map vertex_attrs
[VERT_ATTRIB_MAX
];
183 GLuint vertex_attr_count
;
185 GLfloat polygon_offset_scale
; /* dependent on depth_scale, bpp */
187 GLboolean hw_stencil
;
188 GLboolean hw_stipple
;
189 GLboolean depth_buffer_is_float
;
192 GLboolean always_flush_batch
;
193 GLboolean always_flush_cache
;
195 /* 0 - nonconformant, best performance;
196 * 1 - fallback to sw for known conformance bugs
197 * 2 - always fallback to sw
199 GLuint conformance_mode
;
201 /* State for intelvb.c and inteltris.c.
204 GLmatrix ViewportMatrix
;
205 GLenum render_primitive
;
206 GLenum reduced_primitive
;
208 GLubyte
*verts
; /* points to tnl->clipspace.vertex_buf */
210 /* Fallback rasterization functions
212 intel_point_func draw_point
;
213 intel_line_func draw_line
;
214 intel_tri_func draw_tri
;
217 * Set if rendering has occured to the drawable's front buffer.
219 * This is used in the DRI2 case to detect that glFlush should also copy
220 * the contents of the fake front buffer to the real front buffer.
222 GLboolean front_buffer_dirty
;
225 * Track whether front-buffer rendering is currently enabled
227 * A separate flag is used to track this in order to support MRT more
230 GLboolean is_front_buffer_rendering
;
232 * Track whether front-buffer is the current read target.
234 * This is closely associated with is_front_buffer_rendering, but may
235 * be set separately. The DRI2 fake front buffer must be referenced
238 GLboolean is_front_buffer_reading
;
240 GLboolean use_texture_tiling
;
241 GLboolean use_early_z
;
245 __DRIcontext
*driContext
;
246 struct intel_screen
*intelScreen
;
247 void (*saved_viewport
)(GLcontext
* ctx
,
248 GLint x
, GLint y
, GLsizei width
, GLsizei height
);
251 * Configuration cache
253 driOptionCache optionCache
;
256 extern char *__progname
;
259 #define SUBPIXEL_X 0.125
260 #define SUBPIXEL_Y 0.125
262 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
263 #define ALIGN(value, alignment) ((value + alignment - 1) & ~(alignment - 1))
264 #define ROUND_DOWN_TO(value, alignment) (ALIGN(value - alignment - 1, \
266 #define IS_POWER_OF_TWO(val) (((val) & (val - 1)) == 0)
268 static INLINE
uint32_t
269 U_FIXED(float value
, uint32_t frac_bits
)
271 value
*= (1 << frac_bits
);
272 return value
< 0 ? 0 : value
;
275 static INLINE
uint32_t
276 S_FIXED(float value
, uint32_t frac_bits
)
278 return value
* (1 << frac_bits
);
281 #define INTEL_FIREVERTICES(intel) \
283 if ((intel)->prim.flush) \
284 (intel)->prim.flush(intel); \
287 /* ================================================================
288 * From linux kernel i386 header files, copes with odd sizes better
289 * than COPY_DWORDS would:
290 * XXX Put this in src/mesa/main/imports.h ???
292 #if defined(i386) || defined(__i386__)
293 static INLINE
void * __memcpy(void * to
, const void * from
, size_t n
)
296 __asm__
__volatile__(
301 "1:\ttestb $1,%b4\n\t"
305 : "=&c" (d0
), "=&D" (d1
), "=&S" (d2
)
306 :"0" (n
/4), "q" (n
),"1" ((long) to
),"2" ((long) from
)
311 #define __memcpy(a,b,c) memcpy(a,b,c)
315 /* ================================================================
318 extern int INTEL_DEBUG
;
320 #define DEBUG_TEXTURE 0x1
321 #define DEBUG_STATE 0x2
322 #define DEBUG_IOCTL 0x4
323 #define DEBUG_BLIT 0x8
324 #define DEBUG_MIPTREE 0x10
325 #define DEBUG_FALLBACKS 0x20
326 #define DEBUG_VERBOSE 0x40
327 #define DEBUG_BATCH 0x80
328 #define DEBUG_PIXEL 0x100
329 #define DEBUG_BUFMGR 0x200
330 #define DEBUG_REGION 0x400
331 #define DEBUG_FBO 0x800
332 #define DEBUG_GS 0x1000
333 #define DEBUG_SYNC 0x2000
334 #define DEBUG_PRIMS 0x4000
335 #define DEBUG_VERTS 0x8000
336 #define DEBUG_DRI 0x10000
337 #define DEBUG_SF 0x20000
338 #define DEBUG_SANITY 0x40000
339 #define DEBUG_SLEEP 0x80000
340 #define DEBUG_STATS 0x100000
341 #define DEBUG_TILE 0x200000
342 #define DEBUG_SINGLE_THREAD 0x400000
343 #define DEBUG_WM 0x800000
344 #define DEBUG_URB 0x1000000
345 #define DEBUG_VS 0x2000000
346 #define DEBUG_GLSL_FORCE 0x4000000
347 #define DEBUG_CLIP 0x8000000
349 #define DBG(...) do { \
350 if (INTEL_DEBUG & FILE_DEBUG_FLAG) \
351 printf(__VA_ARGS__); \
354 #define PCI_CHIP_845_G 0x2562
355 #define PCI_CHIP_I830_M 0x3577
356 #define PCI_CHIP_I855_GM 0x3582
357 #define PCI_CHIP_I865_G 0x2572
358 #define PCI_CHIP_I915_G 0x2582
359 #define PCI_CHIP_I915_GM 0x2592
360 #define PCI_CHIP_I945_G 0x2772
361 #define PCI_CHIP_I945_GM 0x27A2
362 #define PCI_CHIP_I945_GME 0x27AE
363 #define PCI_CHIP_G33_G 0x29C2
364 #define PCI_CHIP_Q35_G 0x29B2
365 #define PCI_CHIP_Q33_G 0x29D2
368 /* ================================================================
372 extern GLboolean
intelInitContext(struct intel_context
*intel
,
374 const __GLcontextModes
* mesaVis
,
375 __DRIcontext
* driContextPriv
,
376 void *sharedContextPrivate
,
377 struct dd_function_table
*functions
);
379 extern void intelFinish(GLcontext
* ctx
);
380 extern void intel_flush(GLcontext
* ctx
);
382 extern void intelInitDriverFunctions(struct dd_function_table
*functions
);
384 void intel_init_syncobj_functions(struct dd_function_table
*functions
);
387 /* ================================================================
390 extern void intelInitStateFuncs(struct dd_function_table
*functions
);
392 #define COMPAREFUNC_ALWAYS 0
393 #define COMPAREFUNC_NEVER 0x1
394 #define COMPAREFUNC_LESS 0x2
395 #define COMPAREFUNC_EQUAL 0x3
396 #define COMPAREFUNC_LEQUAL 0x4
397 #define COMPAREFUNC_GREATER 0x5
398 #define COMPAREFUNC_NOTEQUAL 0x6
399 #define COMPAREFUNC_GEQUAL 0x7
401 #define STENCILOP_KEEP 0
402 #define STENCILOP_ZERO 0x1
403 #define STENCILOP_REPLACE 0x2
404 #define STENCILOP_INCRSAT 0x3
405 #define STENCILOP_DECRSAT 0x4
406 #define STENCILOP_INCR 0x5
407 #define STENCILOP_DECR 0x6
408 #define STENCILOP_INVERT 0x7
410 #define LOGICOP_CLEAR 0
411 #define LOGICOP_NOR 0x1
412 #define LOGICOP_AND_INV 0x2
413 #define LOGICOP_COPY_INV 0x3
414 #define LOGICOP_AND_RVRSE 0x4
415 #define LOGICOP_INV 0x5
416 #define LOGICOP_XOR 0x6
417 #define LOGICOP_NAND 0x7
418 #define LOGICOP_AND 0x8
419 #define LOGICOP_EQUIV 0x9
420 #define LOGICOP_NOOP 0xa
421 #define LOGICOP_OR_INV 0xb
422 #define LOGICOP_COPY 0xc
423 #define LOGICOP_OR_RVRSE 0xd
424 #define LOGICOP_OR 0xe
425 #define LOGICOP_SET 0xf
427 #define BLENDFACT_ZERO 0x01
428 #define BLENDFACT_ONE 0x02
429 #define BLENDFACT_SRC_COLR 0x03
430 #define BLENDFACT_INV_SRC_COLR 0x04
431 #define BLENDFACT_SRC_ALPHA 0x05
432 #define BLENDFACT_INV_SRC_ALPHA 0x06
433 #define BLENDFACT_DST_ALPHA 0x07
434 #define BLENDFACT_INV_DST_ALPHA 0x08
435 #define BLENDFACT_DST_COLR 0x09
436 #define BLENDFACT_INV_DST_COLR 0x0a
437 #define BLENDFACT_SRC_ALPHA_SATURATE 0x0b
438 #define BLENDFACT_CONST_COLOR 0x0c
439 #define BLENDFACT_INV_CONST_COLOR 0x0d
440 #define BLENDFACT_CONST_ALPHA 0x0e
441 #define BLENDFACT_INV_CONST_ALPHA 0x0f
442 #define BLENDFACT_MASK 0x0f
445 DRI_CONF_BO_REUSE_DISABLED
,
446 DRI_CONF_BO_REUSE_ALL
449 extern int intel_translate_shadow_compare_func(GLenum func
);
450 extern int intel_translate_compare_func(GLenum func
);
451 extern int intel_translate_stencil_op(GLenum op
);
452 extern int intel_translate_blend_factor(GLenum factor
);
453 extern int intel_translate_logic_op(GLenum opcode
);
455 void intel_update_renderbuffers(__DRIcontext
*context
,
456 __DRIdrawable
*drawable
);
457 void intel_prepare_render(struct intel_context
*intel
);
459 void i915_set_buf_info_for_region(uint32_t *state
, struct intel_region
*region
,
462 /*======================================================================
463 * Inline conversion functions.
464 * These are better-typed than the macros used previously:
466 static INLINE
struct intel_context
*
467 intel_context(GLcontext
* ctx
)
469 return (struct intel_context
*) ctx
;
472 static INLINE GLboolean
473 is_power_of_two(uint32_t value
)
475 return (value
& (value
- 1)) == 0;