eglimage.c revision 25328509c90dc205b9561b5265e478af2873438b 
1#include <assert.h>
2#include <string.h>
3
4#include "eglimage.h"
5#include "eglcurrent.h"
6#include "egllog.h"
7
8
9#ifdef EGL_KHR_image_base
10
11
12/**
13 * Parse the list of image attributes and return the proper error code.
14 */
15EGLint
16_eglParseImageAttribList(_EGLImageAttribs *attrs, _EGLDisplay *dpy,
17                         const EGLint *attrib_list)
18{
19   EGLint i, err = EGL_SUCCESS;
20
21   (void) dpy;
22
23   memset(attrs, 0, sizeof(attrs));
24   attrs->ImagePreserved = EGL_FALSE;
25   attrs->GLTextureLevel = 0;
26   attrs->GLTextureZOffset = 0;
27
28   if (!attrib_list)
29      return err;
30
31   for (i = 0; attrib_list[i] != EGL_NONE; i++) {
32      EGLint attr = attrib_list[i++];
33      EGLint val = attrib_list[i];
34
35      switch (attr) {
36      /* EGL_KHR_image_base */
37      case EGL_IMAGE_PRESERVED_KHR:
38         attrs->ImagePreserved = val;
39         break;
40
41      /* EGL_KHR_gl_image */
42      case EGL_GL_TEXTURE_LEVEL_KHR:
43         attrs->GLTextureLevel = val;
44         break;
45      case EGL_GL_TEXTURE_ZOFFSET_KHR:
46         attrs->GLTextureZOffset = val;
47         break;
48
49      /* EGL_MESA_drm_image */
50      case EGL_WIDTH:
51         attrs->Width = val;
52         break;
53      case EGL_HEIGHT:
54         attrs->Height = val;
55         break;
56      case EGL_DRM_BUFFER_FORMAT_MESA:
57         attrs->DRMBufferFormatMESA = val;
58         break;
59      case EGL_DRM_BUFFER_USE_MESA:
60         attrs->DRMBufferUseMESA = val;
61         break;
62      case EGL_DRM_BUFFER_STRIDE_MESA:
63         attrs->DRMBufferStrideMESA = val;
64         break;
65
66      default:
67         /* unknown attrs are ignored */
68         break;
69      }
70
71      if (err != EGL_SUCCESS) {
72         _eglLog(_EGL_DEBUG, "bad image attribute 0x%04x", attr);
73         break;
74      }
75   }
76
77   return err;
78}
79
80
81EGLBoolean
82_eglInitImage(_EGLImage *img, _EGLDisplay *dpy)
83{
84   memset(img, 0, sizeof(_EGLImage));
85   img->Resource.Display = dpy;
86
87   return EGL_TRUE;
88}
89
90
91#endif /* EGL_KHR_image_base */
92