nx_bitmap.c 4.4 KB

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  1. /****************************************************************************
  2. * graphics/nxsu/nx_bitmap.c
  3. *
  4. * Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
  5. * Author: Gregory Nutt <gnutt@nuttx.org>
  6. *
  7. * Redistribution and use in source and binary forms, with or without
  8. * modification, are permitted provided that the following conditions
  9. * are met:
  10. *
  11. * 1. Redistributions of source code must retain the above copyright
  12. * notice, this list of conditions and the following disclaimer.
  13. * 2. Redistributions in binary form must reproduce the above copyright
  14. * notice, this list of conditions and the following disclaimer in
  15. * the documentation and/or other materials provided with the
  16. * distribution.
  17. * 3. Neither the name NuttX nor the names of its contributors may be
  18. * used to endorse or promote products derived from this software
  19. * without specific prior written permission.
  20. *
  21. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24. * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  25. * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26. * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27. * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  28. * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29. * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  31. * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32. * POSSIBILITY OF SUCH DAMAGE.
  33. *
  34. ****************************************************************************/
  35. /****************************************************************************
  36. * Included Files
  37. ****************************************************************************/
  38. #include <nuttx/config.h>
  39. #include <errno.h>
  40. #include <debug.h>
  41. #include <nuttx/nx/nx.h>
  42. #include "nxbe.h"
  43. #include "nxfe.h"
  44. /****************************************************************************
  45. * Pre-Processor Definitions
  46. ****************************************************************************/
  47. /****************************************************************************
  48. * Private Types
  49. ****************************************************************************/
  50. /****************************************************************************
  51. * Private Data
  52. ****************************************************************************/
  53. /****************************************************************************
  54. * Public Data
  55. ****************************************************************************/
  56. /****************************************************************************
  57. * Private Functions
  58. ****************************************************************************/
  59. /****************************************************************************
  60. * Public Functions
  61. ****************************************************************************/
  62. /****************************************************************************
  63. * Name: nx_bitmap
  64. *
  65. * Description:
  66. * Copy a rectangular region of a larger image into the rectangle in the
  67. * specified window.
  68. *
  69. * Input Parameters:
  70. * hwnd - The window that will receive the bitmap image
  71. * dest - Describes the rectangular region on the display that will receive the
  72. * the bit map.
  73. * src - The start of the source image.
  74. * origin - The origin of the upper, left-most corner of the full bitmap.
  75. * Both dest and origin are in window coordinates, however, origin
  76. * may lie outside of the display.
  77. * stride - The width of the full source image in pixels.
  78. *
  79. * Return:
  80. * OK on success; ERROR on failure with errno set appropriately
  81. *
  82. ****************************************************************************/
  83. int nx_bitmap(NXWINDOW hwnd, FAR const struct nxgl_rect_s *dest,
  84. FAR const void *src[CONFIG_NX_NPLANES],
  85. FAR const struct nxgl_point_s *origin, unsigned int stride)
  86. {
  87. #ifdef CONFIG_DEBUG
  88. if (!hwnd || !dest || !src || !origin)
  89. {
  90. errno = EINVAL;
  91. return ERROR;
  92. }
  93. #endif
  94. nxbe_bitmap((FAR struct nxbe_window_s *)hwnd, dest, src, origin, stride);
  95. return OK;
  96. }