src/mesa/drivers/dri/i965/intel_context.h

   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 INTELCONTEXT_INC
  29 #define INTELCONTEXT_INC
  30
  31
  32 #include <stdbool.h>
  33 #include <string.h>
  34 #include "main/mtypes.h"
  35 #include "main/mm.h"
  36
  37 #ifdef __cplusplus
  38 extern "C" {
  39         /* Evil hack for using libdrm in a c++ compiler. */
  40         #define virtual virt
  41 #endif
  42
  43 #include "drm.h"
  44 #include "intel_bufmgr.h"
  45
  46 #include "intel_screen.h"
  47 #include "intel_tex_obj.h"
  48 #include "i915_drm.h"
  49
  50 #ifdef __cplusplus
  51         #undef virtual
  52 #endif
  53
  54 #include "tnl/t_vertex.h"
  55
  56 struct intel_region;
  57
  58 #define INTEL_WRITE_PART  0x1
  59 #define INTEL_WRITE_FULL  0x2
  60 #define INTEL_READ        0x4
  61
  62 #ifndef likely
  63 #ifdef __GNUC__
  64 #define likely(expr) (__builtin_expect(expr, 1))
  65 #define unlikely(expr) (__builtin_expect(expr, 0))
  66 #else
  67 #define likely(expr) (expr)
  68 #define unlikely(expr) (expr)
  69 #endif
  70 #endif
  71
  72 struct intel_sync_object {
  73    struct gl_sync_object Base;
  74
  75    /** Batch associated with this sync object */
  76    drm_intel_bo *bo;
  77 };
  78
  79 struct brw_context;
  80
  81 struct intel_batchbuffer {
  82    /** Current batchbuffer being queued up. */
  83    drm_intel_bo *bo;
  84    /** Last BO submitted to the hardware.  Used for glFinish(). */
  85    drm_intel_bo *last_bo;
  86    /** BO for post-sync nonzero writes for gen6 workaround. */
  87    drm_intel_bo *workaround_bo;
  88    bool need_workaround_flush;
  89
  90    struct cached_batch_item *cached_items;
  91
  92    uint16_t emit, total;
  93    uint16_t used, reserved_space;
  94    uint32_t *map;
  95    uint32_t *cpu_map;
  96 #define BATCH_SZ (8192*sizeof(uint32_t))
  97
  98    uint32_t state_batch_offset;
  99    bool is_blit;
 100    bool needs_sol_reset;
 101
 102    struct {
 103       uint16_t used;
 104       int reloc_count;
 105    } saved;
 106 };
 107
 108 /**
 109  * Align a value down to an alignment value
 110  *
 111  * If \c value is not already aligned to the requested alignment value, it
 112  * will be rounded down.
 113  *
 114  * \param value  Value to be rounded
 115  * \param alignment  Alignment value to be used.  This must be a power of two.
 116  *
 117  * \sa ALIGN()
 118  */
 119 #define ROUND_DOWN_TO(value, alignment) ((value) & ~(alignment - 1))
 120
 121 static INLINE uint32_t
 122 U_FIXED(float value, uint32_t frac_bits)
 123 {
 124    value *= (1 << frac_bits);
 125    return value < 0 ? 0 : value;
 126 }
 127
 128 static INLINE uint32_t
 129 S_FIXED(float value, uint32_t frac_bits)
 130 {
 131    return value * (1 << frac_bits);
 132 }
 133
 134 /* ================================================================
 135  * From linux kernel i386 header files, copes with odd sizes better
 136  * than COPY_DWORDS would:
 137  * XXX Put this in src/mesa/main/imports.h ???
 138  */
 139 #if defined(i386) || defined(__i386__)
 140 static INLINE void * __memcpy(void * to, const void * from, size_t n)
 141 {
 142    int d0, d1, d2;
 143    __asm__ __volatile__(
 144       "rep ; movsl\n\t"
 145       "testb $2,%b4\n\t"
 146       "je 1f\n\t"
 147       "movsw\n"
 148       "1:\ttestb $1,%b4\n\t"
 149       "je 2f\n\t"
 150       "movsb\n"
 151       "2:"
 152       : "=&c" (d0), "=&D" (d1), "=&S" (d2)
 153       :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
 154       : "memory");
 155    return (to);
 156 }
 157 #else
 158 #define __memcpy(a,b,c) memcpy(a,b,c)
 159 #endif
 160
 161
 162 /* ================================================================
 163  * Debugging:
 164  */
 165 extern int INTEL_DEBUG;
 166
 167 #define DEBUG_TEXTURE   0x1
 168 #define DEBUG_STATE     0x2
 169 #define DEBUG_IOCTL     0x4
 170 #define DEBUG_BLIT      0x8
 171 #define DEBUG_MIPTREE   0x10
 172 #define DEBUG_PERF      0x20
 173 #define DEBUG_BATCH     0x80
 174 #define DEBUG_PIXEL     0x100
 175 #define DEBUG_BUFMGR    0x200
 176 #define DEBUG_REGION    0x400
 177 #define DEBUG_FBO       0x800
 178 #define DEBUG_GS        0x1000
 179 #define DEBUG_SYNC      0x2000
 180 #define DEBUG_PRIMS     0x4000
 181 #define DEBUG_VERTS     0x8000
 182 #define DEBUG_DRI       0x10000
 183 #define DEBUG_SF        0x20000
 184 #define DEBUG_STATS     0x100000
 185 #define DEBUG_WM        0x400000
 186 #define DEBUG_URB       0x800000
 187 #define DEBUG_VS        0x1000000
 188 #define DEBUG_CLIP      0x2000000
 189 #define DEBUG_AUB       0x4000000
 190 #define DEBUG_SHADER_TIME 0x8000000
 191 #define DEBUG_BLORP     0x10000000
 192 #define DEBUG_NO16      0x20000000
 193
 194 #ifdef HAVE_ANDROID_PLATFORM
 195 #define LOG_TAG "INTEL-MESA"
 196 #include <cutils/log.h>
 197 #ifndef ALOGW
 198 #define ALOGW LOGW
 199 #endif
 200 #define dbg_printf(...) ALOGW(__VA_ARGS__)
 201 #else
 202 #define dbg_printf(...) printf(__VA_ARGS__)
 203 #endif /* HAVE_ANDROID_PLATFORM */
 204
 205 #define DBG(...) do {                                           \
 206         if (unlikely(INTEL_DEBUG & FILE_DEBUG_FLAG))            \
 207                 dbg_printf(__VA_ARGS__);                        \
 208 } while(0)
 209
 210 #define perf_debug(...) do {                                    \
 211    static GLuint msg_id = 0;                                    \
 212    if (unlikely(INTEL_DEBUG & DEBUG_PERF))                      \
 213       dbg_printf(__VA_ARGS__);                                  \
 214    if (brw->perf_debug)                                         \
 215       _mesa_gl_debug(&brw->ctx, &msg_id,                        \
 216                      MESA_DEBUG_TYPE_PERFORMANCE,               \
 217                      MESA_DEBUG_SEVERITY_MEDIUM,                \
 218                      __VA_ARGS__);                              \
 219 } while(0)
 220
 221 #define WARN_ONCE(cond, fmt...) do {                            \
 222    if (unlikely(cond)) {                                        \
 223       static bool _warned = false;                              \
 224       static GLuint msg_id = 0;                                 \
 225       if (!_warned) {                                           \
 226          fprintf(stderr, "WARNING: ");                          \
 227          fprintf(stderr, fmt);                                  \
 228          _warned = true;                                        \
 229                                                                 \
 230          _mesa_gl_debug(ctx, &msg_id,                           \
 231                         MESA_DEBUG_TYPE_OTHER,                  \
 232                         MESA_DEBUG_SEVERITY_HIGH, fmt);         \
 233       }                                                         \
 234    }                                                            \
 235 } while (0)
 236
 237 /* ================================================================
 238  * intel_context.c:
 239  */
 240
 241 extern bool intelInitContext(struct brw_context *brw,
 242                              int api,
 243                              unsigned major_version,
 244                              unsigned minor_version,
 245                              const struct gl_config * mesaVis,
 246                              __DRIcontext * driContextPriv,
 247                              void *sharedContextPrivate,
 248                              struct dd_function_table *functions,
 249                              unsigned *dri_ctx_error);
 250
 251 extern void intelFinish(struct gl_context * ctx);
 252 extern void _intel_flush(struct gl_context * ctx, const char *file, int line);
 253
 254 #define intel_flush(ctx) _intel_flush(ctx, __FILE__, __LINE__)
 255
 256 extern void intelInitDriverFunctions(struct dd_function_table *functions);
 257
 258 void intel_init_syncobj_functions(struct dd_function_table *functions);
 259
 260 enum {
 261    DRI_CONF_BO_REUSE_DISABLED,
 262    DRI_CONF_BO_REUSE_ALL
 263 };
 264
 265 extern int intel_translate_shadow_compare_func(GLenum func);
 266 extern int intel_translate_compare_func(GLenum func);
 267 extern int intel_translate_stencil_op(GLenum op);
 268 extern int intel_translate_logic_op(GLenum opcode);
 269
 270 void intel_update_renderbuffers(__DRIcontext *context,
 271                                 __DRIdrawable *drawable);
 272 void intel_prepare_render(struct brw_context *brw);
 273
 274 void
 275 intel_resolve_for_dri2_flush(struct brw_context *brw,
 276                              __DRIdrawable *drawable);
 277
 278 extern void
 279 intelInitExtensions(struct gl_context *ctx);
 280 extern void
 281 intelInitClearFuncs(struct dd_function_table *functions);
 282
 283 static INLINE bool
 284 is_power_of_two(uint32_t value)
 285 {
 286    return (value & (value - 1)) == 0;
 287 }
 288
 289 #ifdef __cplusplus
 290 }
 291 #endif
 292
 293 #endif