1 //
2 // Copyright 2015 The ANGLE Project Authors. All rights reserved.
3 // Use of this source code is governed by a BSD-style license that can be
4 // found in the LICENSE file.
5 //
6
7 // SurfaceGL.cpp: OpenGL implementation of egl::Surface
8
9 #include "libANGLE/renderer/gl/SurfaceGL.h"
10
11 #include "libANGLE/Context.h"
12 #include "libANGLE/Surface.h"
13 #include "libANGLE/renderer/gl/BlitGL.h"
14 #include "libANGLE/renderer/gl/ContextGL.h"
15 #include "libANGLE/renderer/gl/FramebufferGL.h"
16 #include "libANGLE/renderer/gl/RendererGL.h"
17
18 namespace rx
19 {
20
SurfaceGL(const egl::SurfaceState & state)21 SurfaceGL::SurfaceGL(const egl::SurfaceState &state) : SurfaceImpl(state) {}
22
~SurfaceGL()23 SurfaceGL::~SurfaceGL() {}
24
getSyncValues(EGLuint64KHR * ust,EGLuint64KHR * msc,EGLuint64KHR * sbc)25 egl::Error SurfaceGL::getSyncValues(EGLuint64KHR *ust, EGLuint64KHR *msc, EGLuint64KHR *sbc)
26 {
27 UNREACHABLE();
28 return egl::EglBadSurface();
29 }
30
getMscRate(EGLint * numerator,EGLint * denominator)31 egl::Error SurfaceGL::getMscRate(EGLint *numerator, EGLint *denominator)
32 {
33 UNIMPLEMENTED();
34 return egl::EglBadAccess();
35 }
36
initializeContents(const gl::Context * context,GLenum binding,const gl::ImageIndex & imageIndex)37 angle::Result SurfaceGL::initializeContents(const gl::Context *context,
38 GLenum binding,
39 const gl::ImageIndex &imageIndex)
40 {
41 FramebufferGL *framebufferGL = GetImplAs<FramebufferGL>(context->getFramebuffer({0}));
42 ASSERT(framebufferGL->isDefault());
43
44 BlitGL *blitter = GetBlitGL(context);
45
46 switch (binding)
47 {
48 case GL_BACK:
49 {
50 gl::DrawBufferMask colorAttachments{0};
51 ANGLE_TRY(
52 blitter->clearFramebuffer(context, colorAttachments, false, false, framebufferGL));
53 }
54 break;
55
56 case GL_DEPTH:
57 case GL_STENCIL:
58 ANGLE_TRY(blitter->clearFramebuffer(context, gl::DrawBufferMask(), true, true,
59 framebufferGL));
60 break;
61
62 default:
63 UNREACHABLE();
64 break;
65 }
66
67 return angle::Result::Continue;
68 }
69
hasEmulatedAlphaChannel() const70 bool SurfaceGL::hasEmulatedAlphaChannel() const
71 {
72 return false;
73 }
74
attachToFramebuffer(const gl::Context * context,gl::Framebuffer * framebuffer)75 egl::Error SurfaceGL::attachToFramebuffer(const gl::Context *context, gl::Framebuffer *framebuffer)
76 {
77 return egl::NoError();
78 }
79
detachFromFramebuffer(const gl::Context * context,gl::Framebuffer * framebuffer)80 egl::Error SurfaceGL::detachFromFramebuffer(const gl::Context *context,
81 gl::Framebuffer *framebuffer)
82 {
83 return egl::NoError();
84 }
85
86 } // namespace rx
87