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/* -*- 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 "RenderTextureHostSWGL.h"
#include "RenderThread.h"
namespace mozilla {
namespace wr {
bool RenderTextureHostSWGL::UpdatePlanes(RenderCompositor* aCompositor,
wr::ImageRendering aRendering) {
wr_swgl_make_current(mContext);
size_t planeCount = GetPlaneCount();
bool filterUpdate = IsFilterUpdateNecessary(aRendering);
if (mPlanes.size() < planeCount) {
mPlanes.reserve(planeCount);
while (mPlanes.size() < planeCount) {
mPlanes.push_back(PlaneInfo(wr_swgl_gen_texture(mContext)));
}
filterUpdate = true;
}
gfx::SurfaceFormat format = GetFormat();
gfx::ColorDepth colorDepth = GetColorDepth();
for (size_t i = 0; i < planeCount; i++) {
PlaneInfo& plane = mPlanes[i];
if (!MapPlane(aCompositor, i, plane)) {
if (i > 0) {
UnmapPlanes();
}
return false;
}
GLenum internalFormat = 0;
switch (format) {
case gfx::SurfaceFormat::B8G8R8A8:
case gfx::SurfaceFormat::B8G8R8X8:
MOZ_ASSERT(colorDepth == gfx::ColorDepth::COLOR_8);
internalFormat = LOCAL_GL_RGBA8;
break;
case gfx::SurfaceFormat::YUV:
switch (colorDepth) {
case gfx::ColorDepth::COLOR_8:
internalFormat = LOCAL_GL_R8;
break;
case gfx::ColorDepth::COLOR_10:
case gfx::ColorDepth::COLOR_12:
case gfx::ColorDepth::COLOR_16:
internalFormat = LOCAL_GL_R16;
break;
default:
MOZ_RELEASE_ASSERT(false, "Unhandled YUV color depth");
break;
}
break;
case gfx::SurfaceFormat::NV12:
MOZ_ASSERT(colorDepth == gfx::ColorDepth::COLOR_8);
internalFormat = i > 0 ? LOCAL_GL_RG8 : LOCAL_GL_R8;
break;
case gfx::SurfaceFormat::YUV422:
MOZ_ASSERT(colorDepth == gfx::ColorDepth::COLOR_8);
internalFormat = LOCAL_GL_RGB_RAW_422_APPLE;
break;
default:
MOZ_RELEASE_ASSERT(false, "Unhandled external image format");
break;
}
wr_swgl_set_texture_buffer(mContext, plane.mTexture, internalFormat,
plane.mSize.width, plane.mSize.height,
plane.mStride, plane.mData, 0, 0);
}
if (filterUpdate) {
mCachedRendering = aRendering;
GLenum filter = aRendering == wr::ImageRendering::Pixelated
? LOCAL_GL_NEAREST
: LOCAL_GL_LINEAR;
for (const auto& plane : mPlanes) {
wr_swgl_set_texture_parameter(mContext, plane.mTexture,
LOCAL_GL_TEXTURE_MIN_FILTER, filter);
wr_swgl_set_texture_parameter(mContext, plane.mTexture,
LOCAL_GL_TEXTURE_MAG_FILTER, filter);
}
}
return true;
}
bool RenderTextureHostSWGL::SetContext(void* aContext) {
if (mContext != aContext) {
CleanupPlanes();
mContext = aContext;
wr_swgl_reference_context(mContext);
}
return mContext != nullptr;
}
wr::WrExternalImage RenderTextureHostSWGL::LockSWGL(
uint8_t aChannelIndex, void* aContext, RenderCompositor* aCompositor,
wr::ImageRendering aRendering) {
if (!SetContext(aContext)) {
return InvalidToWrExternalImage();
}
if (!mLocked) {
if (!UpdatePlanes(aCompositor, aRendering)) {
return InvalidToWrExternalImage();
}
mLocked = true;
}
if (aChannelIndex >= mPlanes.size()) {
return InvalidToWrExternalImage();
}
const PlaneInfo& plane = mPlanes[aChannelIndex];
return NativeTextureToWrExternalImage(plane.mTexture, 0, 0, plane.mSize.width,
plane.mSize.height);
}
void RenderTextureHostSWGL::UnlockSWGL() {
if (mLocked) {
mLocked = false;
UnmapPlanes();
}
}
void RenderTextureHostSWGL::CleanupPlanes() {
if (!mContext) {
return;
}
if (!mPlanes.empty()) {
wr_swgl_make_current(mContext);
for (const auto& plane : mPlanes) {
wr_swgl_delete_texture(mContext, plane.mTexture);
}
mPlanes.clear();
}
wr_swgl_destroy_context(mContext);
mContext = nullptr;
}
RenderTextureHostSWGL::~RenderTextureHostSWGL() { CleanupPlanes(); }
bool RenderTextureHostSWGL::LockSWGLCompositeSurface(
void* aContext, wr::WrSWGLCompositeSurfaceInfo* aInfo) {
if (!SetContext(aContext)) {
return false;
}
if (!mLocked) {
if (!UpdatePlanes(nullptr, mCachedRendering)) {
return false;
}
mLocked = true;
}
MOZ_ASSERT(mPlanes.size() <= 3);
for (size_t i = 0; i < mPlanes.size(); i++) {
aInfo->textures[i] = mPlanes[i].mTexture;
}
switch (GetFormat()) {
case gfx::SurfaceFormat::YUV:
case gfx::SurfaceFormat::NV12:
case gfx::SurfaceFormat::YUV422: {
aInfo->yuv_planes = mPlanes.size();
auto colorSpace = GetYUVColorSpace();
MOZ_ASSERT(colorSpace != gfx::YUVColorSpace::UNKNOWN);
aInfo->color_space = ToWrYuvColorSpace(colorSpace);
auto colorDepth = GetColorDepth();
MOZ_ASSERT(colorDepth != gfx::ColorDepth::UNKNOWN);
aInfo->color_depth = ToWrColorDepth(colorDepth);
break;
}
case gfx::SurfaceFormat::B8G8R8A8:
case gfx::SurfaceFormat::B8G8R8X8:
break;
default:
MOZ_RELEASE_ASSERT(false, "Unhandled external image format");
break;
}
aInfo->size.width = mPlanes[0].mSize.width;
aInfo->size.height = mPlanes[0].mSize.height;
return true;
}
bool wr_swgl_lock_composite_surface(void* aContext, wr::ExternalImageId aId,
wr::WrSWGLCompositeSurfaceInfo* aInfo) {
RenderTextureHost* texture = RenderThread::Get()->GetRenderTexture(aId);
if (!texture) {
return false;
}
RenderTextureHostSWGL* swglTex = texture->AsRenderTextureHostSWGL();
if (!swglTex) {
return false;
}
return swglTex->LockSWGLCompositeSurface(aContext, aInfo);
}
void wr_swgl_unlock_composite_surface(void* aContext, wr::ExternalImageId aId) {
RenderTextureHost* texture = RenderThread::Get()->GetRenderTexture(aId);
if (!texture) {
return;
}
RenderTextureHostSWGL* swglTex = texture->AsRenderTextureHostSWGL();
if (!swglTex) {
return;
}
swglTex->UnlockSWGL();
}
} // namespace wr
} // namespace mozilla
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