summaryrefslogtreecommitdiffstats
path: root/gfx/webrender_bindings/RenderMacIOSurfaceTextureHost.cpp
blob: c1f93327e5259e040458c0594fec47b090e6b951 (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
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "RenderMacIOSurfaceTextureHost.h"

#ifdef XP_MACOSX
#  include "GLContextCGL.h"
#else
#  include "GLContextEAGL.h"
#endif

#include "mozilla/gfx/Logging.h"
#include "ScopedGLHelpers.h"

namespace mozilla {
namespace wr {

static bool CreateTextureForPlane(uint8_t aPlaneID, gl::GLContext* aGL,
                                  MacIOSurface* aSurface, GLuint* aTexture) {
  MOZ_ASSERT(aGL && aSurface && aTexture);

  aGL->fGenTextures(1, aTexture);
  ActivateBindAndTexParameteri(aGL, LOCAL_GL_TEXTURE0,
                               LOCAL_GL_TEXTURE_RECTANGLE_ARB, *aTexture);
  aGL->fTexParameteri(LOCAL_GL_TEXTURE_RECTANGLE_ARB, LOCAL_GL_TEXTURE_WRAP_T,
                      LOCAL_GL_CLAMP_TO_EDGE);
  aGL->fTexParameteri(LOCAL_GL_TEXTURE_RECTANGLE_ARB, LOCAL_GL_TEXTURE_WRAP_S,
                      LOCAL_GL_CLAMP_TO_EDGE);

  gfx::SurfaceFormat readFormat = gfx::SurfaceFormat::UNKNOWN;
  bool result = aSurface->BindTexImage(aGL, aPlaneID, &readFormat);
  // If this is a yuv format, the Webrender only supports YUV422 interleaving
  // format.
  MOZ_ASSERT(aSurface->GetFormat() != gfx::SurfaceFormat::YUV422 ||
             readFormat == gfx::SurfaceFormat::YUV422);

  return result;
}

RenderMacIOSurfaceTextureHost::RenderMacIOSurfaceTextureHost(
    MacIOSurface* aSurface)
    : mSurface(aSurface), mTextureHandles{0, 0, 0} {
  MOZ_COUNT_CTOR_INHERITED(RenderMacIOSurfaceTextureHost, RenderTextureHost);
}

RenderMacIOSurfaceTextureHost::~RenderMacIOSurfaceTextureHost() {
  MOZ_COUNT_DTOR_INHERITED(RenderMacIOSurfaceTextureHost, RenderTextureHost);
  DeleteTextureHandle();
}

GLuint RenderMacIOSurfaceTextureHost::GetGLHandle(uint8_t aChannelIndex) const {
  MOZ_ASSERT(mSurface);
  MOZ_ASSERT((mSurface->GetPlaneCount() == 0)
                 ? (aChannelIndex == mSurface->GetPlaneCount())
                 : (aChannelIndex < mSurface->GetPlaneCount()));
  return mTextureHandles[aChannelIndex];
}

gfx::IntSize RenderMacIOSurfaceTextureHost::GetSize(
    uint8_t aChannelIndex) const {
  MOZ_ASSERT(mSurface);
  MOZ_ASSERT((mSurface->GetPlaneCount() == 0)
                 ? (aChannelIndex == mSurface->GetPlaneCount())
                 : (aChannelIndex < mSurface->GetPlaneCount()));

  if (!mSurface) {
    return gfx::IntSize();
  }
  return gfx::IntSize(mSurface->GetDevicePixelWidth(aChannelIndex),
                      mSurface->GetDevicePixelHeight(aChannelIndex));
}

size_t RenderMacIOSurfaceTextureHost::Bytes() {
  return mSurface->GetAllocSize();
}

wr::WrExternalImage RenderMacIOSurfaceTextureHost::Lock(uint8_t aChannelIndex,
                                                        gl::GLContext* aGL) {
  if (mGL.get() != aGL) {
    // release the texture handle in the previous gl context
    DeleteTextureHandle();
    mGL = aGL;
    mGL->MakeCurrent();
  }

  if (!mSurface || !mGL || !mGL->MakeCurrent()) {
    return InvalidToWrExternalImage();
  }

  if (!mTextureHandles[0]) {
#ifdef XP_MACOSX
    MOZ_ASSERT(gl::GLContextCGL::Cast(mGL.get())->GetCGLContext());
#else
    MOZ_ASSERT(gl::GLContextEAGL::Cast(mGL.get())->GetEAGLContext());
#endif

    // The result of GetPlaneCount() is 0 for single plane format, but it will
    // be 2 if the format has 2 planar data.
    CreateTextureForPlane(0, mGL, mSurface, &(mTextureHandles[0]));
    for (size_t i = 1; i < mSurface->GetPlaneCount(); ++i) {
      CreateTextureForPlane(i, mGL, mSurface, &(mTextureHandles[i]));
    }
  }

  const auto uvs = GetUvCoords(GetSize(aChannelIndex));
  return NativeTextureToWrExternalImage(GetGLHandle(aChannelIndex), uvs.first.x,
                                        uvs.first.y, uvs.second.x,
                                        uvs.second.y);
}

void RenderMacIOSurfaceTextureHost::Unlock() {}

void RenderMacIOSurfaceTextureHost::DeleteTextureHandle() {
  if (mTextureHandles[0] != 0 && mGL && mGL->MakeCurrent()) {
    // Calling glDeleteTextures on 0 isn't an error. So, just make them a single
    // call.
    mGL->fDeleteTextures(3, mTextureHandles);
    for (size_t i = 0; i < 3; ++i) {
      mTextureHandles[i] = 0;
    }
  }
}

size_t RenderMacIOSurfaceTextureHost::GetPlaneCount() const {
  size_t planeCount = mSurface->GetPlaneCount();
  return planeCount > 0 ? planeCount : 1;
}

gfx::SurfaceFormat RenderMacIOSurfaceTextureHost::GetFormat() const {
  return mSurface->GetFormat();
}

gfx::ColorDepth RenderMacIOSurfaceTextureHost::GetColorDepth() const {
  return mSurface->GetColorDepth();
}

gfx::YUVRangedColorSpace RenderMacIOSurfaceTextureHost::GetYUVColorSpace()
    const {
  return ToYUVRangedColorSpace(mSurface->GetYUVColorSpace(),
                               mSurface->GetColorRange());
}

bool RenderMacIOSurfaceTextureHost::MapPlane(RenderCompositor* aCompositor,
                                             uint8_t aChannelIndex,
                                             PlaneInfo& aPlaneInfo) {
  if (!aChannelIndex) {
    mSurface->Lock();
  }
  aPlaneInfo.mData = mSurface->GetBaseAddressOfPlane(aChannelIndex);
  aPlaneInfo.mStride = mSurface->GetBytesPerRow(aChannelIndex);
  aPlaneInfo.mSize =
      gfx::IntSize(mSurface->GetDevicePixelWidth(aChannelIndex),
                   mSurface->GetDevicePixelHeight(aChannelIndex));
  return true;
}

void RenderMacIOSurfaceTextureHost::UnmapPlanes() { mSurface->Unlock(); }

}  // namespace wr
}  // namespace mozilla