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  1. /**********************************************************
  2.  * Copyright 2009-2011 VMware, Inc. All rights reserved.
  3.  *
  4.  * Permission is hereby granted, free of charge, to any person
  5.  * obtaining a copy of this software and associated documentation
  6.  * files (the "Software"), to deal in the Software without
  7.  * restriction, including without limitation the rights to use, copy,
  8.  * modify, merge, publish, distribute, sublicense, and/or sell copies
  9.  * of the Software, and to permit persons to whom the Software is
  10.  * furnished to do so, subject to the following conditions:
  11.  *
  12.  * The above copyright notice and this permission notice shall be
  13.  * included in all copies or substantial portions of the Software.
  14.  *
  15.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16.  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17.  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18.  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19.  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20.  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21.  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22.  * SOFTWARE.
  23.  *
  24.  *********************************************************
  25.  * Authors:
  26.  * Zack Rusin <zackr-at-vmware-dot-com>
  27.  * Thomas Hellstrom <thellstrom-at-vmware-dot-com>
  28.  */
  29.  
  30. #ifndef _XA_COMPOSITE_H_
  31. #define _XA_COMPOSITE_H_
  32.  
  33. #include "xa_tracker.h"
  34. #include "xa_context.h"
  35.  
  36. /*
  37.  * Supported composite ops.
  38.  */
  39. enum xa_composite_op {
  40.     xa_op_clear,
  41.     xa_op_src,
  42.     xa_op_dst,
  43.     xa_op_over,
  44.     xa_op_over_reverse,
  45.     xa_op_in,
  46.     xa_op_in_reverse,
  47.     xa_op_out,
  48.     xa_op_out_reverse,
  49.     xa_op_atop,
  50.     xa_op_atop_reverse,
  51.     xa_op_xor,
  52.     xa_op_add
  53. };
  54.  
  55. /*
  56.  * Supported filters.
  57.  */
  58. enum xa_composite_filter {
  59.     xa_filter_nearest,
  60.     xa_filter_linear
  61. };
  62.  
  63. /*
  64.  * Supported clamp methods.
  65.  */
  66. enum xa_composite_wrap {
  67.     xa_wrap_clamp_to_border,
  68.     xa_wrap_repeat,
  69.     xa_wrap_mirror_repeat,
  70.     xa_wrap_clamp_to_edge
  71. };
  72.  
  73. /*
  74.  * Src picture types.
  75.  */
  76. enum xa_composite_src_pict_type {
  77.     xa_src_pict_solid_fill
  78. };
  79.  
  80. struct xa_pict_solid_fill {
  81.     enum xa_composite_src_pict_type type;
  82.     unsigned int class;
  83.     uint32_t color;
  84. };
  85.  
  86. union xa_source_pict {
  87.     unsigned int type;
  88.     struct xa_pict_solid_fill solid_fill;
  89. };
  90.  
  91. struct xa_picture {
  92.     enum xa_formats pict_format;
  93.     struct xa_surface *srf;
  94.     struct xa_surface *alpha_map;
  95.     float transform[9];
  96.     int has_transform;
  97.     int component_alpha;
  98.     enum xa_composite_wrap wrap;
  99.     enum xa_composite_filter filter;
  100.     union xa_source_pict *src_pict;
  101. };
  102.  
  103. struct xa_composite {
  104.     struct xa_picture *src, *mask, *dst;
  105.     int op;
  106.     int no_solid;
  107. };
  108.  
  109. struct xa_composite_allocation {
  110.     unsigned int xa_composite_size;
  111.     unsigned int xa_picture_size;
  112.     unsigned int xa_source_pict_size;
  113. };
  114.  
  115. /*
  116.  * Get allocation sizes for minor bump compatibility.
  117.  */
  118.  
  119. extern const struct xa_composite_allocation *
  120. xa_composite_allocation(void);
  121.  
  122. /*
  123.  * This function checks most things except the format of the hardware
  124.  * surfaces, since they are generally not available at the time this
  125.  * function is called. Returns usual XA error codes.
  126.  */
  127. extern int
  128. xa_composite_check_accelerated(const struct xa_composite *comp);
  129.  
  130. extern int
  131. xa_composite_prepare(struct xa_context *ctx, const struct xa_composite *comp);
  132.  
  133. extern void
  134. xa_composite_rect(struct xa_context *ctx,
  135.                   int srcX, int srcY, int maskX, int maskY,
  136.                   int dstX, int dstY, int width, int height);
  137. extern void
  138. xa_composite_done(struct xa_context *ctx);
  139.  
  140. #endif
  141.