workbench/libs/mesa/src/gallium/drivers/i915/i915_batchbuffer.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
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   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
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  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
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  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.
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  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