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  1. /**************************************************************************
  2.  *
  3.  * Copyright 2007 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 I915_BATCHBUFFER_H
  29. #define I915_BATCHBUFFER_H
  30.  
  31. #include "i915_winsys.h"
  32. #include "util/u_debug.h"
  33.  
  34. struct i915_context;
  35.  
  36. static INLINE size_t
  37. i915_winsys_batchbuffer_space(struct i915_winsys_batchbuffer *batch)
  38. {
  39.    return batch->size - (batch->ptr - batch->map);
  40. }
  41.  
  42. static INLINE boolean
  43. i915_winsys_batchbuffer_check(struct i915_winsys_batchbuffer *batch,
  44.                               size_t dwords)
  45. {
  46.    return dwords * 4 <= i915_winsys_batchbuffer_space(batch);
  47. }
  48.  
  49. static INLINE void
  50. i915_winsys_batchbuffer_dword_unchecked(struct i915_winsys_batchbuffer *batch,
  51.                                         unsigned dword)
  52. {
  53.    *(unsigned *)batch->ptr = dword;
  54.    batch->ptr += 4;
  55. }
  56.  
  57. static INLINE void
  58. i915_winsys_batchbuffer_float(struct i915_winsys_batchbuffer *batch,
  59.                               float f)
  60. {
  61.    union { float f; unsigned int ui; } uif;
  62.    uif.f = f;
  63.    assert (i915_winsys_batchbuffer_space(batch) >= 4);
  64.    i915_winsys_batchbuffer_dword_unchecked(batch, uif.ui);
  65. }
  66.  
  67. static INLINE void
  68. i915_winsys_batchbuffer_dword(struct i915_winsys_batchbuffer *batch,
  69.                               unsigned dword)
  70. {
  71.    assert (i915_winsys_batchbuffer_space(batch) >= 4);
  72.    i915_winsys_batchbuffer_dword_unchecked(batch, dword);
  73. }
  74.  
  75. static INLINE void
  76. i915_winsys_batchbuffer_write(struct i915_winsys_batchbuffer *batch,
  77.                               void *data,
  78.                               size_t size)
  79. {
  80.    assert (i915_winsys_batchbuffer_space(batch) >= size);
  81.  
  82.    memcpy(batch->ptr, data, size);
  83.    batch->ptr += size;
  84. }
  85.  
  86. static INLINE boolean
  87. i915_winsys_validate_buffers(struct i915_winsys_batchbuffer *batch,
  88.                              struct i915_winsys_buffer **buffers,
  89.                              int num_of_buffers)
  90. {
  91.    return batch->iws->validate_buffers(batch, buffers, num_of_buffers);
  92. }
  93.  
  94. static INLINE int
  95. i915_winsys_batchbuffer_reloc(struct i915_winsys_batchbuffer *batch,
  96.                               struct i915_winsys_buffer *buffer,
  97.                               enum i915_winsys_buffer_usage usage,
  98.                               size_t offset, boolean fenced)
  99. {
  100.    return batch->iws->batchbuffer_reloc(batch, buffer, usage, offset, fenced);
  101. }
  102.  
  103. #endif
  104.