1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6
7 #include "X11TextureSourceOGL.h"
8 #include "gfxXlibSurface.h"
9 #include "gfx2DGlue.h"
10 #include "GLContext.h"
11
12 namespace mozilla::layers {
13
14 using namespace mozilla::gfx;
15
X11TextureSourceOGL(CompositorOGL * aCompositor,gfxXlibSurface * aSurface)16 X11TextureSourceOGL::X11TextureSourceOGL(CompositorOGL* aCompositor,
17 gfxXlibSurface* aSurface)
18 : mGL(aCompositor->gl()),
19 mSurface(aSurface),
20 mTexture(0),
21 mUpdated(false) {}
22
~X11TextureSourceOGL()23 X11TextureSourceOGL::~X11TextureSourceOGL() { DeallocateDeviceData(); }
24
DeallocateDeviceData()25 void X11TextureSourceOGL::DeallocateDeviceData() {
26 if (mTexture) {
27 if (gl() && gl()->MakeCurrent()) {
28 gl::sGLXLibrary.ReleaseTexImage(mSurface->XDisplay(),
29 mSurface->GetGLXPixmap());
30 gl()->fDeleteTextures(1, &mTexture);
31 mTexture = 0;
32 }
33 }
34 }
35
BindTexture(GLenum aTextureUnit,gfx::SamplingFilter aSamplingFilter)36 void X11TextureSourceOGL::BindTexture(GLenum aTextureUnit,
37 gfx::SamplingFilter aSamplingFilter) {
38 gl()->fActiveTexture(aTextureUnit);
39
40 if (!mTexture) {
41 gl()->fGenTextures(1, &mTexture);
42
43 gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, mTexture);
44
45 gl::sGLXLibrary.BindTexImage(mSurface->XDisplay(),
46 mSurface->GetGLXPixmap());
47 } else {
48 gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, mTexture);
49 if (mUpdated) {
50 gl::sGLXLibrary.UpdateTexImage(mSurface->XDisplay(),
51 mSurface->GetGLXPixmap());
52 mUpdated = false;
53 }
54 }
55
56 ApplySamplingFilterToBoundTexture(gl(), aSamplingFilter, LOCAL_GL_TEXTURE_2D);
57 }
58
GetSize() const59 IntSize X11TextureSourceOGL::GetSize() const { return mSurface->GetSize(); }
60
GetFormat() const61 SurfaceFormat X11TextureSourceOGL::GetFormat() const {
62 gfxContentType type = mSurface->GetContentType();
63 return X11TextureSourceOGL::ContentTypeToSurfaceFormat(type);
64 }
65
SetTextureSourceProvider(TextureSourceProvider * aProvider)66 void X11TextureSourceOGL::SetTextureSourceProvider(
67 TextureSourceProvider* aProvider) {
68 gl::GLContext* newGL = aProvider ? aProvider->GetGLContext() : nullptr;
69 if (mGL != newGL) {
70 DeallocateDeviceData();
71 }
72 mGL = newGL;
73 }
74
ContentTypeToSurfaceFormat(gfxContentType aType)75 SurfaceFormat X11TextureSourceOGL::ContentTypeToSurfaceFormat(
76 gfxContentType aType) {
77 // X11 uses a switched format and the OGL compositor
78 // doesn't support ALPHA / A8.
79 switch (aType) {
80 case gfxContentType::COLOR:
81 return SurfaceFormat::R8G8B8X8;
82 case gfxContentType::COLOR_ALPHA:
83 return SurfaceFormat::R8G8B8A8;
84 default:
85 return SurfaceFormat::UNKNOWN;
86 }
87 }
88
89 } // namespace mozilla::layers
90