gfx/webrender_bindings/RenderTextureHostSWGL.cpp

   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 "RenderTextureHostSWGL.h"
   8
   9 #include "mozilla/gfx/Logging.h"
  10 #include "mozilla/layers/TextureHost.h"
  11 #include "RenderThread.h"
  12
  13 namespace mozilla {
  14 namespace wr {
  15
  16 bool RenderTextureHostSWGL::UpdatePlanes(RenderCompositor* aCompositor) {
  17   wr_swgl_make_current(mContext);
  18   size_t planeCount = GetPlaneCount();
  19   bool texInit = false;
  20   if (mPlanes.size() < planeCount) {
  21     mPlanes.reserve(planeCount);
  22     while (mPlanes.size() < planeCount) {
  23       mPlanes.push_back(PlaneInfo(wr_swgl_gen_texture(mContext)));
  24     }
  25     texInit = true;
  26   }
  27   gfx::SurfaceFormat format = GetFormat();
  28   gfx::ColorDepth colorDepth = GetColorDepth();
  29   for (size_t i = 0; i < planeCount; i++) {
  30     PlaneInfo& plane = mPlanes[i];
  31     if (!MapPlane(aCompositor, i, plane)) {
  32       if (i > 0) {
  33         UnmapPlanes();
  34       }
  35       return false;
  36     }
  37     GLenum internalFormat = 0;
  38     switch (format) {
  39       case gfx::SurfaceFormat::B8G8R8A8:
  40       case gfx::SurfaceFormat::B8G8R8X8:
  41         MOZ_ASSERT(colorDepth == gfx::ColorDepth::COLOR_8);
  42         internalFormat = LOCAL_GL_RGBA8;
  43         break;
  44       case gfx::SurfaceFormat::YUV420:
  45         switch (colorDepth) {
  46           case gfx::ColorDepth::COLOR_8:
  47             internalFormat = LOCAL_GL_R8;
  48             break;
  49           case gfx::ColorDepth::COLOR_10:
  50           case gfx::ColorDepth::COLOR_12:
  51           case gfx::ColorDepth::COLOR_16:
  52             internalFormat = LOCAL_GL_R16;
  53             break;
  54         }
  55         break;
  56       case gfx::SurfaceFormat::NV12:
  57         switch (colorDepth) {
  58           case gfx::ColorDepth::COLOR_8:
  59             internalFormat = i > 0 ? LOCAL_GL_RG8 : LOCAL_GL_R8;
  60             break;
  61           case gfx::ColorDepth::COLOR_10:
  62           case gfx::ColorDepth::COLOR_12:
  63           case gfx::ColorDepth::COLOR_16:
  64             internalFormat = i > 0 ? LOCAL_GL_RG16 : LOCAL_GL_R16;
  65             break;
  66         }
  67         break;
  68       case gfx::SurfaceFormat::P010:
  69         MOZ_ASSERT(colorDepth == gfx::ColorDepth::COLOR_10);
  70         internalFormat = i > 0 ? LOCAL_GL_RG16 : LOCAL_GL_R16;
  71         break;
  72       case gfx::SurfaceFormat::YUY2:
  73         MOZ_ASSERT(colorDepth == gfx::ColorDepth::COLOR_8);
  74         internalFormat = LOCAL_GL_RGB_RAW_422_APPLE;
  75         break;
  76       default:
  77         MOZ_RELEASE_ASSERT(false, "Unhandled external image format");
  78         break;
  79     }
  80     wr_swgl_set_texture_buffer(mContext, plane.mTexture, internalFormat,
  81                                plane.mSize.width, plane.mSize.height,
  82                                plane.mStride, plane.mData, 0, 0);
  83   }
  84   if (texInit) {
  85     // Initialize the mip filters to linear by default.
  86     for (const auto& plane : mPlanes) {
  87       wr_swgl_set_texture_parameter(mContext, plane.mTexture,
  88                                     LOCAL_GL_TEXTURE_MIN_FILTER,
  89                                     LOCAL_GL_LINEAR);
  90       wr_swgl_set_texture_parameter(mContext, plane.mTexture,
  91                                     LOCAL_GL_TEXTURE_MAG_FILTER,
  92                                     LOCAL_GL_LINEAR);
  93     }
  94   }
  95   return true;
  96 }
  97
  98 bool RenderTextureHostSWGL::SetContext(void* aContext) {
  99   if (mContext != aContext) {
 100     CleanupPlanes();
 101     mContext = aContext;
 102     wr_swgl_reference_context(mContext);
 103   }
 104   return mContext != nullptr;
 105 }
 106
 107 wr::WrExternalImage RenderTextureHostSWGL::LockSWGL(
 108     uint8_t aChannelIndex, void* aContext, RenderCompositor* aCompositor) {
 109   if (!SetContext(aContext)) {
 110     return InvalidToWrExternalImage();
 111   }
 112   if (!mLocked) {
 113     if (!UpdatePlanes(aCompositor)) {
 114       return InvalidToWrExternalImage();
 115     }
 116     mLocked = true;
 117   }
 118   if (aChannelIndex >= mPlanes.size()) {
 119     return InvalidToWrExternalImage();
 120   }
 121   const PlaneInfo& plane = mPlanes[aChannelIndex];
 122
 123   // Prefer native textures, unless our backend forbids it.
 124   layers::TextureHost::NativeTexturePolicy policy =
 125       layers::TextureHost::BackendNativeTexturePolicy(
 126           layers::WebRenderBackend::SOFTWARE, plane.mSize);
 127   return policy == layers::TextureHost::NativeTexturePolicy::FORBID
 128              ? RawDataToWrExternalImage((uint8_t*)plane.mData,
 129                                         plane.mStride * plane.mSize.height)
 130              : NativeTextureToWrExternalImage(
 131                    plane.mTexture, 0.0, 0.0,
 132                    static_cast<float>(plane.mSize.width),
 133                    static_cast<float>(plane.mSize.height));
 134 }
 135
 136 void RenderTextureHostSWGL::UnlockSWGL() {
 137   if (mLocked) {
 138     mLocked = false;
 139     UnmapPlanes();
 140   }
 141 }
 142
 143 void RenderTextureHostSWGL::CleanupPlanes() {
 144   if (!mContext) {
 145     return;
 146   }
 147   if (!mPlanes.empty()) {
 148     wr_swgl_make_current(mContext);
 149     for (const auto& plane : mPlanes) {
 150       wr_swgl_delete_texture(mContext, plane.mTexture);
 151     }
 152     mPlanes.clear();
 153   }
 154   wr_swgl_destroy_context(mContext);
 155   mContext = nullptr;
 156 }
 157
 158 RenderTextureHostSWGL::~RenderTextureHostSWGL() { CleanupPlanes(); }
 159
 160 bool RenderTextureHostSWGL::LockSWGLCompositeSurface(
 161     void* aContext, wr::SWGLCompositeSurfaceInfo* aInfo) {
 162   if (!SetContext(aContext)) {
 163     return false;
 164   }
 165   if (!mLocked) {
 166     if (!UpdatePlanes(nullptr)) {
 167       return false;
 168     }
 169     mLocked = true;
 170   }
 171   MOZ_ASSERT(mPlanes.size() <= 3);
 172   for (size_t i = 0; i < mPlanes.size(); i++) {
 173     aInfo->textures[i] = mPlanes[i].mTexture;
 174   }
 175   switch (GetFormat()) {
 176     case gfx::SurfaceFormat::YUV420:
 177     case gfx::SurfaceFormat::NV12:
 178     case gfx::SurfaceFormat::P010:
 179     case gfx::SurfaceFormat::YUY2: {
 180       aInfo->yuv_planes = mPlanes.size();
 181       auto colorSpace = GetYUVColorSpace();
 182       aInfo->color_space = ToWrYuvRangedColorSpace(colorSpace);
 183       auto colorDepth = GetColorDepth();
 184       aInfo->color_depth = ToWrColorDepth(colorDepth);
 185       break;
 186     }
 187     case gfx::SurfaceFormat::B8G8R8A8:
 188     case gfx::SurfaceFormat::B8G8R8X8:
 189       break;
 190     default:
 191       gfxCriticalNote << "Unhandled external image format: " << GetFormat();
 192       MOZ_RELEASE_ASSERT(false, "Unhandled external image format");
 193       break;
 194   }
 195   aInfo->size.width = mPlanes[0].mSize.width;
 196   aInfo->size.height = mPlanes[0].mSize.height;
 197   return true;
 198 }
 199
 200 bool wr_swgl_lock_composite_surface(void* aContext, wr::ExternalImageId aId,
 201                                     wr::SWGLCompositeSurfaceInfo* aInfo) {
 202   RenderTextureHost* texture = RenderThread::Get()->GetRenderTexture(aId);
 203   if (!texture) {
 204     return false;
 205   }
 206   RenderTextureHostSWGL* swglTex = texture->AsRenderTextureHostSWGL();
 207   if (!swglTex) {
 208     return false;
 209   }
 210   return swglTex->LockSWGLCompositeSurface(aContext, aInfo);
 211 }
 212
 213 void wr_swgl_unlock_composite_surface(void* aContext, wr::ExternalImageId aId) {
 214   RenderTextureHost* texture = RenderThread::Get()->GetRenderTexture(aId);
 215   if (!texture) {
 216     return;
 217   }
 218   RenderTextureHostSWGL* swglTex = texture->AsRenderTextureHostSWGL();
 219   if (!swglTex) {
 220     return;
 221   }
 222   swglTex->UnlockSWGL();
 223 }
 224
 225 }  // namespace wr
 226 }  // namespace mozilla