1/*
2Copyright (c) 2012, Broadcom Europe Ltd
3All rights reserved.
4
5Redistribution and use in source and binary forms, with or without
6modification, are permitted provided that the following conditions are met:
7 * Redistributions of source code must retain the above copyright
8 notice, this list of conditions and the following disclaimer.
9 * Redistributions in binary form must reproduce the above copyright
10 notice, this list of conditions and the following disclaimer in the
11 documentation and/or other materials provided with the distribution.
12 * Neither the name of the copyright holder nor the
13 names of its contributors may be used to endorse or promote products
14 derived from this software without specific prior written permission.
15
16THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
17ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
20DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26*/
27
28#define EGL_EGLEXT_PROTOTYPES /* we want the prototypes so the compiler will check that the signatures match */
29
30#include "interface/khronos/common/khrn_client_mangle.h"
31
32#include "interface/khronos/common/khrn_int_common.h"
33#include "interface/khronos/include/EGL/egl.h"
34#include "interface/khronos/include/EGL/eglext.h"
35#include "interface/khronos/common/khrn_client.h"
36#include "interface/khronos/common/khrn_client_rpc.h"
37#include "interface/khronos/egl/egl_client_config.h"
38#ifdef RPC_DIRECT
39#include "interface/khronos/egl/egl_int_impl.h"
40#endif
41#include <assert.h>
42
43static bool lock_surface_check_attribs(const EGLint *attrib_list, bool *preserve_pixels, uint32_t *lock_usage_hint)
44{
45 if (!attrib_list)
46 return EGL_TRUE;
47
48 while (1) {
49 int name = *attrib_list++;
50 if (name == EGL_NONE)
51 return EGL_TRUE;
52 else {
53 int value = *attrib_list++;
54 switch (name) {
55 case EGL_MAP_PRESERVE_PIXELS_KHR:
56 *preserve_pixels = value ? true : false;
57 break;
58 case EGL_LOCK_USAGE_HINT_KHR:
59 if (value & ~(EGL_READ_SURFACE_BIT_KHR | EGL_WRITE_SURFACE_BIT_KHR))
60 return EGL_FALSE;
61
62 *lock_usage_hint = value;
63 break;
64 default:
65 return EGL_FALSE;
66 }
67 }
68 }
69}
70
71EGLAPI EGLBoolean EGLAPIENTRY eglLockSurfaceKHR (EGLDisplay dpy, EGLSurface surf, const EGLint *attrib_list)
72{
73 CLIENT_THREAD_STATE_T *thread = CLIENT_GET_THREAD_STATE();
74 EGLBoolean result;
75
76 CLIENT_LOCK();
77
78 {
79 CLIENT_PROCESS_STATE_T *process = client_egl_get_process_state(thread, dpy, EGL_TRUE);
80
81 if (!process)
82 result = 0;
83 else {
84 EGL_SURFACE_T *surface = client_egl_get_surface(thread, process, surf);
85
86 if (surface) {
87 bool preserve_pixels = false;
88 uint32_t lock_usage_hint = EGL_READ_SURFACE_BIT_KHR | EGL_WRITE_SURFACE_BIT_KHR; /* we completely ignore this */
89
90 assert(!surface->is_locked);
91
92 if (!lock_surface_check_attribs(attrib_list, &preserve_pixels, &lock_usage_hint)) {
93 thread->error = EGL_BAD_ATTRIBUTE;
94 result = EGL_FALSE;
95 } else if (!egl_config_is_lockable((int)(intptr_t)surface->config - 1)) {
96 /* Only lockable surfaces can be locked (obviously) */
97 thread->error = EGL_BAD_ACCESS;
98 result = EGL_FALSE;
99 } else if (surface->context_binding_count) {
100 /* Cannot lock a surface if it is bound to a context */
101 thread->error = EGL_BAD_ACCESS;
102 result = EGL_FALSE;
103 } else if (preserve_pixels) {
104 /* TODO: we don't need to support this. What error should we return? */
105 thread->error = EGL_BAD_ATTRIBUTE;
106 return EGL_FALSE;
107 } else {
108 /* Don't allocate the buffer here. This happens during "mapping", in eglQuerySurface. */
109 surface->mapped_buffer = 0;
110 surface->is_locked = true;
111 thread->error = EGL_SUCCESS;
112 result = EGL_TRUE;
113 }
114 } else
115 result = EGL_FALSE;
116 }
117 }
118
119 CLIENT_UNLOCK();
120 return result;
121}
122
123EGLAPI EGLBoolean EGLAPIENTRY eglUnlockSurfaceKHR (EGLDisplay dpy, EGLSurface surf)
124{
125 CLIENT_THREAD_STATE_T *thread = CLIENT_GET_THREAD_STATE();
126 EGLBoolean result;
127
128 CLIENT_LOCK();
129
130 {
131 CLIENT_PROCESS_STATE_T *process = client_egl_get_process_state(thread, dpy, EGL_TRUE);
132
133 if (!process)
134 result = 0;
135 else {
136 EGL_SURFACE_T *surface = client_egl_get_locked_surface(thread, process, surf);
137
138 if (!surface) {
139 result = EGL_FALSE;
140 } else if (!surface->is_locked) {
141 thread->error = EGL_BAD_ACCESS;
142 result = EGL_FALSE;
143 } else {
144 assert(surface->is_locked);
145 if (surface->mapped_buffer) {
146 KHRN_IMAGE_FORMAT_T format = egl_config_get_mapped_format((int)(intptr_t)surface->config - 1);
147 uint32_t stride = khrn_image_get_stride(format, surface->width);
148 int lines, offset, height;
149
150 lines = KHDISPATCH_WORKSPACE_SIZE / stride;
151 offset = 0;
152 height = surface->height;
153
154 while (height > 0) {
155 int batch = _min(lines, height);
156#ifndef RPC_DIRECT
157 uint32_t len = batch * stride;
158#endif
159
160 RPC_CALL7_IN_BULK(eglIntSetColorData_impl,
161 thread,
162 EGLINTSETCOLORDATA_ID,
163 surface->serverbuffer,
164 format,
165 surface->width,
166 batch,
167 stride,
168 offset,
169 (const char *)surface->mapped_buffer + offset * stride,
170 len);
171
172 offset += batch;
173 height -= batch;
174 }
175
176 khrn_platform_free(surface->mapped_buffer);
177 }
178
179 surface->mapped_buffer = 0;
180 surface->is_locked = false;
181 thread->error = EGL_SUCCESS;
182 result = EGL_TRUE;
183 }
184 }
185 }
186
187 CLIENT_UNLOCK();
188 return result;
189}
190
191