blob: 566b05e4cc7646ee186171cb9bff1058063e4903 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/gl/gl_image_io_surface.h"
#include "ui/gl/gl_bindings.h"
#include "ui/gl/gl_context.h"
// Note that this must be included after gl_bindings.h to avoid conflicts.
#include <OpenGL/CGLIOSurface.h>
namespace gfx {
GLImageIOSurface::GLImageIOSurface(gfx::Size size)
: size_(size) {}
GLImageIOSurface::~GLImageIOSurface() { Destroy(); }
bool GLImageIOSurface::Initialize(gfx::GpuMemoryBufferHandle buffer) {
io_surface_.reset(IOSurfaceLookup(buffer.io_surface_id));
if (!io_surface_) {
LOG(ERROR) << "IOSurface lookup failed";
return false;
}
return true;
}
gfx::Size GLImageIOSurface::GetSize() { return size_; }
bool GLImageIOSurface::BindTexImage(unsigned target) {
if (target != GL_TEXTURE_RECTANGLE_ARB) {
// This might be supported in the future. For now, perform strict
// validation so we know what's going on.
LOG(ERROR) << "IOSurface requires TEXTURE_RECTANGLE_ARB target";
return false;
}
CGLContextObj cgl_context =
static_cast<CGLContextObj>(GLContext::GetCurrent()->GetHandle());
DCHECK(io_surface_);
CGLError cgl_error = CGLTexImageIOSurface2D(cgl_context,
target,
GL_RGBA,
size_.width(),
size_.height(),
GL_BGRA,
GL_UNSIGNED_INT_8_8_8_8_REV,
io_surface_.get(),
0);
if (cgl_error != kCGLNoError) {
LOG(ERROR) << "Error in CGLTexImageIOSurface2D";
return false;
}
return true;
}
} // namespace gfx
|
