gfx/webrender_bindings/RenderTextureHost.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 "RenderTextureHost.h"
   8
   9 #include "GLContext.h"
  10 #include "RenderThread.h"
  11
  12 namespace mozilla {
  13 namespace wr {
  14
  15 void ActivateBindAndTexParameteri(gl::GLContext* aGL, GLenum aActiveTexture,
  16                                   GLenum aBindTarget, GLuint aBindTexture,
  17                                   wr::ImageRendering aRendering) {
  18   aGL->fActiveTexture(aActiveTexture);
  19   aGL->fBindTexture(aBindTarget, aBindTexture);
  20   aGL->fTexParameteri(aBindTarget, LOCAL_GL_TEXTURE_MIN_FILTER,
  21                       aRendering == wr::ImageRendering::Pixelated
  22                           ? LOCAL_GL_NEAREST
  23                           : LOCAL_GL_LINEAR);
  24   aGL->fTexParameteri(aBindTarget, LOCAL_GL_TEXTURE_MAG_FILTER,
  25                       aRendering == wr::ImageRendering::Pixelated
  26                           ? LOCAL_GL_NEAREST
  27                           : LOCAL_GL_LINEAR);
  28 }
  29
  30 RenderTextureHost::RenderTextureHost()
  31     : mCachedRendering(wr::ImageRendering::Auto) {
  32   MOZ_COUNT_CTOR(RenderTextureHost);
  33 }
  34
  35 RenderTextureHost::~RenderTextureHost() {
  36   MOZ_ASSERT(RenderThread::IsInRenderThread());
  37   MOZ_COUNT_DTOR(RenderTextureHost);
  38 }
  39
  40 bool RenderTextureHost::IsFilterUpdateNecessary(wr::ImageRendering aRendering) {
  41   return mCachedRendering != aRendering;
  42 }
  43
  44 wr::WrExternalImage RenderTextureHost::Lock(uint8_t aChannelIndex,
  45                                             gl::GLContext* aGL,
  46                                             wr::ImageRendering aRendering) {
  47   return InvalidToWrExternalImage();
  48 }
  49
  50 wr::WrExternalImage RenderTextureHost::LockSWGL(uint8_t aChannelIndex,
  51                                                 void* aContext,
  52                                                 RenderCompositor* aCompositor,
  53                                                 wr::ImageRendering aRendering) {
  54   return InvalidToWrExternalImage();
  55 }
  56
  57 }  // namespace wr
  58 }  // namespace mozilla