Squashed commit of the following:
[mesa.git] / src / gallium / state_trackers / egl / common / egl_g3d_image.c
1 /*
2 * Mesa 3-D graphics library
3 * Version: 7.8
4 *
5 * Copyright (C) 2010 LunarG Inc.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Chia-I Wu <olv@lunarg.com>
26 */
27
28 #include <assert.h>
29 #include "pipe/p_screen.h"
30 #include "util/u_memory.h"
31 #include "util/u_rect.h"
32 #include "util/u_inlines.h"
33 #include "eglcurrent.h"
34 #include "egllog.h"
35
36 #include "native.h"
37 #include "egl_g3d.h"
38 #include "egl_g3d_image.h"
39
40 /**
41 * Reference and return the front left buffer of the native pixmap.
42 */
43 static struct pipe_resource *
44 egl_g3d_reference_native_pixmap(_EGLDisplay *dpy, EGLNativePixmapType pix)
45 {
46 struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
47 struct egl_g3d_config *gconf;
48 struct native_surface *nsurf;
49 struct pipe_resource *textures[NUM_NATIVE_ATTACHMENTS];
50 enum native_attachment natt;
51
52 gconf = egl_g3d_config(egl_g3d_find_pixmap_config(dpy, pix));
53 if (!gconf)
54 return NULL;
55
56 nsurf = gdpy->native->create_pixmap_surface(gdpy->native,
57 pix, gconf->native);
58 if (!nsurf)
59 return NULL;
60
61 natt = NATIVE_ATTACHMENT_FRONT_LEFT;
62 if (!nsurf->validate(nsurf, 1 << natt, NULL, textures, NULL, NULL))
63 textures[natt] = NULL;
64
65 nsurf->destroy(nsurf);
66
67 return textures[natt];
68 }
69
70 _EGLImage *
71 egl_g3d_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
72 EGLenum target, EGLClientBuffer buffer,
73 const EGLint *attribs)
74 {
75 struct pipe_resource *ptex;
76 struct egl_g3d_image *gimg;
77 unsigned face = 0, level = 0, zslice = 0;
78
79 gimg = CALLOC_STRUCT(egl_g3d_image);
80 if (!gimg) {
81 _eglError(EGL_BAD_ALLOC, "eglCreatePbufferSurface");
82 return NULL;
83 }
84
85 if (!_eglInitImage(&gimg->base, dpy, attribs)) {
86 free(gimg);
87 return NULL;
88 }
89
90 switch (target) {
91 case EGL_NATIVE_PIXMAP_KHR:
92 ptex = egl_g3d_reference_native_pixmap(dpy,
93 (EGLNativePixmapType) buffer);
94 break;
95 default:
96 ptex = NULL;
97 break;
98 }
99
100 if (!ptex) {
101 free(gimg);
102 return NULL;
103 }
104
105 if (level > ptex->last_level) {
106 _eglError(EGL_BAD_MATCH, "eglCreateEGLImageKHR");
107 pipe_resource_reference(&gimg->texture, NULL);
108 free(gimg);
109 return NULL;
110 }
111 if (zslice > ptex->depth0) {
112 _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
113 pipe_resource_reference(&gimg->texture, NULL);
114 free(gimg);
115 return NULL;
116 }
117
118 /* transfer the ownership to the image */
119 gimg->texture = ptex;
120 gimg->face = face;
121 gimg->level = level;
122 gimg->zslice = zslice;
123
124 return &gimg->base;
125 }
126
127 EGLBoolean
128 egl_g3d_destroy_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLImage *img)
129 {
130 struct egl_g3d_image *gimg = egl_g3d_image(img);
131
132 pipe_resource_reference(&gimg->texture, NULL);
133 free(gimg);
134
135 return EGL_TRUE;
136 }