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  1. /**************************************************************************
  2.  *
  3.  * Copyright 2009-2010 Chia-I Wu <olvaffe@gmail.com>
  4.  * Copyright 2010-2011 LunarG, Inc.
  5.  * All Rights Reserved.
  6.  *
  7.  * Permission is hereby granted, free of charge, to any person obtaining a
  8.  * copy of this software and associated documentation files (the
  9.  * "Software"), to deal in the Software without restriction, including
  10.  * without limitation the rights to use, copy, modify, merge, publish,
  11.  * distribute, sub license, and/or sell copies of the Software, and to
  12.  * permit persons to whom the Software is furnished to do so, subject to
  13.  * the following conditions:
  14.  *
  15.  * The above copyright notice and this permission notice (including the
  16.  * next paragraph) shall be included in all copies or substantial portions
  17.  * of the Software.
  18.  *
  19.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20.  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21.  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22.  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  23.  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  24.  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  25.  * DEALINGS IN THE SOFTWARE.
  26.  *
  27.  **************************************************************************/
  28.  
  29.  
  30. #include <assert.h>
  31. #include <string.h>
  32.  
  33. #include "eglimage.h"
  34. #include "egllog.h"
  35.  
  36.  
  37. /**
  38.  * Parse the list of image attributes and return the proper error code.
  39.  */
  40. EGLint
  41. _eglParseImageAttribList(_EGLImageAttribs *attrs, _EGLDisplay *dpy,
  42.                          const EGLint *attrib_list)
  43. {
  44.    EGLint i, err = EGL_SUCCESS;
  45.  
  46.    (void) dpy;
  47.  
  48.    memset(attrs, 0, sizeof(*attrs));
  49.    attrs->ImagePreserved = EGL_FALSE;
  50.    attrs->GLTextureLevel = 0;
  51.    attrs->GLTextureZOffset = 0;
  52.  
  53.    if (!attrib_list)
  54.       return err;
  55.  
  56.    for (i = 0; attrib_list[i] != EGL_NONE; i++) {
  57.       EGLint attr = attrib_list[i++];
  58.       EGLint val = attrib_list[i];
  59.  
  60.       switch (attr) {
  61.       /* EGL_KHR_image_base */
  62.       case EGL_IMAGE_PRESERVED_KHR:
  63.          attrs->ImagePreserved = val;
  64.          break;
  65.  
  66.       /* EGL_KHR_gl_image */
  67.       case EGL_GL_TEXTURE_LEVEL_KHR:
  68.          attrs->GLTextureLevel = val;
  69.          break;
  70.       case EGL_GL_TEXTURE_ZOFFSET_KHR:
  71.          attrs->GLTextureZOffset = val;
  72.          break;
  73.  
  74.       /* EGL_MESA_drm_image */
  75.       case EGL_WIDTH:
  76.          attrs->Width = val;
  77.          break;
  78.       case EGL_HEIGHT:
  79.          attrs->Height = val;
  80.          break;
  81.       case EGL_DRM_BUFFER_FORMAT_MESA:
  82.          attrs->DRMBufferFormatMESA = val;
  83.          break;
  84.       case EGL_DRM_BUFFER_USE_MESA:
  85.          attrs->DRMBufferUseMESA = val;
  86.          break;
  87.       case EGL_DRM_BUFFER_STRIDE_MESA:
  88.          attrs->DRMBufferStrideMESA = val;
  89.          break;
  90.  
  91.       /* EGL_WL_bind_wayland_display */
  92.       case EGL_WAYLAND_PLANE_WL:
  93.          attrs->PlaneWL = val;
  94.          break;
  95.  
  96.       case EGL_LINUX_DRM_FOURCC_EXT:
  97.          attrs->DMABufFourCC.Value = val;
  98.          attrs->DMABufFourCC.IsPresent = EGL_TRUE;
  99.          break;
  100.       case EGL_DMA_BUF_PLANE0_FD_EXT:
  101.          attrs->DMABufPlaneFds[0].Value = val;
  102.          attrs->DMABufPlaneFds[0].IsPresent = EGL_TRUE;
  103.          break;
  104.       case EGL_DMA_BUF_PLANE0_OFFSET_EXT:
  105.          attrs->DMABufPlaneOffsets[0].Value = val;
  106.          attrs->DMABufPlaneOffsets[0].IsPresent = EGL_TRUE;
  107.          break;
  108.       case EGL_DMA_BUF_PLANE0_PITCH_EXT:
  109.          attrs->DMABufPlanePitches[0].Value = val;
  110.          attrs->DMABufPlanePitches[0].IsPresent = EGL_TRUE;
  111.          break;
  112.       case EGL_DMA_BUF_PLANE1_FD_EXT:
  113.          attrs->DMABufPlaneFds[1].Value = val;
  114.          attrs->DMABufPlaneFds[1].IsPresent = EGL_TRUE;
  115.          break;
  116.       case EGL_DMA_BUF_PLANE1_OFFSET_EXT:
  117.          attrs->DMABufPlaneOffsets[1].Value = val;
  118.          attrs->DMABufPlaneOffsets[1].IsPresent = EGL_TRUE;
  119.          break;
  120.       case EGL_DMA_BUF_PLANE1_PITCH_EXT:
  121.          attrs->DMABufPlanePitches[1].Value = val;
  122.          attrs->DMABufPlanePitches[1].IsPresent = EGL_TRUE;
  123.          break;
  124.       case EGL_DMA_BUF_PLANE2_FD_EXT:
  125.          attrs->DMABufPlaneFds[2].Value = val;
  126.          attrs->DMABufPlaneFds[2].IsPresent = EGL_TRUE;
  127.          break;
  128.       case EGL_DMA_BUF_PLANE2_OFFSET_EXT:
  129.          attrs->DMABufPlaneOffsets[2].Value = val;
  130.          attrs->DMABufPlaneOffsets[2].IsPresent = EGL_TRUE;
  131.          break;
  132.       case EGL_DMA_BUF_PLANE2_PITCH_EXT:
  133.          attrs->DMABufPlanePitches[2].Value = val;
  134.          attrs->DMABufPlanePitches[2].IsPresent = EGL_TRUE;
  135.          break;
  136.       case EGL_YUV_COLOR_SPACE_HINT_EXT:
  137.          if (val != EGL_ITU_REC601_EXT && val != EGL_ITU_REC709_EXT &&
  138.              val != EGL_ITU_REC2020_EXT) {
  139.             err = EGL_BAD_ATTRIBUTE;
  140.          } else {
  141.             attrs->DMABufYuvColorSpaceHint.Value = val;
  142.             attrs->DMABufYuvColorSpaceHint.IsPresent = EGL_TRUE;
  143.          }
  144.          break;
  145.       case EGL_SAMPLE_RANGE_HINT_EXT:
  146.          if (val != EGL_YUV_FULL_RANGE_EXT && val != EGL_YUV_NARROW_RANGE_EXT) {
  147.             err = EGL_BAD_ATTRIBUTE;
  148.          } else {
  149.             attrs->DMABufSampleRangeHint.Value = val;
  150.             attrs->DMABufSampleRangeHint.IsPresent = EGL_TRUE;
  151.          }
  152.          break;
  153.       case EGL_YUV_CHROMA_HORIZONTAL_SITING_HINT_EXT:
  154.          if (val != EGL_YUV_CHROMA_SITING_0_EXT &&
  155.              val != EGL_YUV_CHROMA_SITING_0_5_EXT) {
  156.             err = EGL_BAD_ATTRIBUTE;
  157.          } else {
  158.             attrs->DMABufChromaHorizontalSiting.Value = val;
  159.             attrs->DMABufChromaHorizontalSiting.IsPresent = EGL_TRUE;
  160.          }
  161.          break;
  162.       case EGL_YUV_CHROMA_VERTICAL_SITING_HINT_EXT:
  163.          if (val != EGL_YUV_CHROMA_SITING_0_EXT &&
  164.              val != EGL_YUV_CHROMA_SITING_0_5_EXT) {
  165.             err = EGL_BAD_ATTRIBUTE;
  166.          } else {
  167.             attrs->DMABufChromaVerticalSiting.Value = val;
  168.             attrs->DMABufChromaVerticalSiting.IsPresent = EGL_TRUE;
  169.          }
  170.          break;
  171.  
  172.       default:
  173.          /* unknown attrs are ignored */
  174.          break;
  175.       }
  176.  
  177.       if (err != EGL_SUCCESS) {
  178.          _eglLog(_EGL_DEBUG, "bad image attribute 0x%04x", attr);
  179.          break;
  180.       }
  181.    }
  182.  
  183.    return err;
  184. }
  185.  
  186.  
  187. EGLBoolean
  188. _eglInitImage(_EGLImage *img, _EGLDisplay *dpy)
  189. {
  190.    _eglInitResource(&img->Resource, sizeof(*img), dpy);
  191.  
  192.    return EGL_TRUE;
  193. }
  194.