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pjs/gfx/layers/opengl/ImageLayerOGL.cpp

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24 KiB
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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Corporation code.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Bas Schouten <bschouten@mozilla.org>
* Vladimir Vukicevic <vladimir@pobox.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifdef MOZ_IPC
# include "gfxSharedImageSurface.h"
#endif
#include "ImageLayerOGL.h"
#include "gfxImageSurface.h"
#include "yuv_convert.h"
#include "GLContextProvider.h"
#include "MacIOSurfaceImageOGL.h"
using namespace mozilla::gl;
namespace mozilla {
namespace layers {
using mozilla::MutexAutoLock;
/**
* This is an event used to unref a GLContext on the main thread and
* optionally delete a texture associated with that context.
*/
class TextureDeleter : public nsRunnable {
public:
TextureDeleter(already_AddRefed<GLContext> aContext,
GLuint aTexture)
: mContext(aContext), mTexture(aTexture)
{
NS_ASSERTION(aTexture, "TextureDeleter instantiated with nothing to do");
}
NS_IMETHOD Run() {
mContext->MakeCurrent();
mContext->fDeleteTextures(1, &mTexture);
// Ensure context is released on the main thread
mContext = nsnull;
return NS_OK;
}
nsRefPtr<GLContext> mContext;
GLuint mTexture;
};
void
GLTexture::Allocate(GLContext *aContext)
{
NS_ASSERTION(aContext->IsGlobalSharedContext() ||
NS_IsMainThread(), "Can only allocate texture on main thread or with cx sharing");
Release();
mContext = aContext;
mContext->MakeCurrent();
mContext->fGenTextures(1, &mTexture);
}
void
GLTexture::TakeFrom(GLTexture *aOther)
{
Release();
mContext = aOther->mContext.forget();
mTexture = aOther->mTexture;
aOther->mTexture = 0;
}
void
GLTexture::Release()
{
if (!mContext) {
NS_ASSERTION(!mTexture, "Can't delete texture without a context");
return;
}
if (mTexture) {
if (NS_IsMainThread() || mContext->IsGlobalSharedContext()) {
mContext->MakeCurrent();
mContext->fDeleteTextures(1, &mTexture);
} else {
nsCOMPtr<nsIRunnable> runnable =
new TextureDeleter(mContext.forget(), mTexture);
NS_DispatchToMainThread(runnable);
}
mTexture = 0;
}
mContext = nsnull;
}
RecycleBin::RecycleBin()
: mLock("mozilla.layers.RecycleBin.mLock")
{
}
void
RecycleBin::RecycleBuffer(PRUint8* aBuffer, PRUint32 aSize)
{
MutexAutoLock lock(mLock);
if (!mRecycledBuffers.IsEmpty() && aSize != mRecycledBufferSize) {
mRecycledBuffers.Clear();
}
mRecycledBufferSize = aSize;
mRecycledBuffers.AppendElement(aBuffer);
}
PRUint8*
RecycleBin::GetBuffer(PRUint32 aSize)
{
MutexAutoLock lock(mLock);
if (mRecycledBuffers.IsEmpty() || mRecycledBufferSize != aSize)
return new PRUint8[aSize];
PRUint32 last = mRecycledBuffers.Length() - 1;
PRUint8* result = mRecycledBuffers[last].forget();
mRecycledBuffers.RemoveElementAt(last);
return result;
}
void
RecycleBin::RecycleTexture(GLTexture *aTexture, TextureType aType,
const gfxIntSize& aSize)
{
MutexAutoLock lock(mLock);
if (!aTexture->IsAllocated())
return;
if (!mRecycledTextures[aType].IsEmpty() && aSize != mRecycledTextureSizes[aType]) {
mRecycledTextures[aType].Clear();
}
mRecycledTextureSizes[aType] = aSize;
mRecycledTextures[aType].AppendElement()->TakeFrom(aTexture);
}
void
RecycleBin::GetTexture(TextureType aType, const gfxIntSize& aSize,
GLContext *aContext, GLTexture *aOutTexture)
{
MutexAutoLock lock(mLock);
if (mRecycledTextures[aType].IsEmpty() || mRecycledTextureSizes[aType] != aSize) {
aOutTexture->Allocate(aContext);
return;
}
PRUint32 last = mRecycledTextures[aType].Length() - 1;
aOutTexture->TakeFrom(&mRecycledTextures[aType].ElementAt(last));
mRecycledTextures[aType].RemoveElementAt(last);
}
ImageContainerOGL::ImageContainerOGL(LayerManagerOGL *aManager)
: ImageContainer(aManager)
, mRecycleBin(new RecycleBin())
, mActiveImageLock("mozilla.layers.ImageContainerOGL.mActiveImageLock")
{
}
ImageContainerOGL::~ImageContainerOGL()
{
if (mManager) {
NS_ASSERTION(mManager->GetBackendType() == LayerManager::LAYERS_OPENGL, "Wrong layer manager got assigned to ImageContainerOGL!");
static_cast<LayerManagerOGL*>(mManager)->ForgetImageContainer(this);
}
}
already_AddRefed<Image>
ImageContainerOGL::CreateImage(const Image::Format *aFormats,
PRUint32 aNumFormats)
{
if (!aNumFormats) {
return nsnull;
}
nsRefPtr<Image> img;
if (aFormats[0] == Image::PLANAR_YCBCR) {
img = new PlanarYCbCrImageOGL(static_cast<LayerManagerOGL*>(mManager),
mRecycleBin);
} else if (aFormats[0] == Image::CAIRO_SURFACE) {
img = new CairoImageOGL(static_cast<LayerManagerOGL*>(mManager));
}
#ifdef XP_MACOSX
else if (aFormats[0] == Image::MAC_IO_SURFACE) {
img = new MacIOSurfaceImageOGL(static_cast<LayerManagerOGL*>(mManager));
}
#endif
return img.forget();
}
void
ImageContainerOGL::SetCurrentImage(Image *aImage)
{
nsRefPtr<Image> oldImage;
{
MutexAutoLock lock(mActiveImageLock);
oldImage = mActiveImage.forget();
mActiveImage = aImage;
}
// Make sure oldImage is released outside the lock, so it can take our
// lock in RecycleBuffer
}
already_AddRefed<Image>
ImageContainerOGL::GetCurrentImage()
{
MutexAutoLock lock(mActiveImageLock);
nsRefPtr<Image> retval = mActiveImage;
return retval.forget();
}
already_AddRefed<gfxASurface>
ImageContainerOGL::GetCurrentAsSurface(gfxIntSize *aSize)
{
MutexAutoLock lock(mActiveImageLock);
if (!mActiveImage) {
*aSize = gfxIntSize(0,0);
return nsnull;
}
GLContext *gl = nsnull;
// tex1 will be RGBA or Y, tex2 will Cb, tex3 will be Cr
GLuint tex1 = 0;
gfxIntSize size;
if (mActiveImage->GetFormat() == Image::PLANAR_YCBCR) {
PlanarYCbCrImageOGL *yuvImage =
static_cast<PlanarYCbCrImageOGL*>(mActiveImage.get());
if (!yuvImage->HasData()) {
*aSize = gfxIntSize(0, 0);
return nsnull;
}
size = yuvImage->mSize;
nsRefPtr<gfxImageSurface> imageSurface =
new gfxImageSurface(size, gfxASurface::ImageFormatRGB24);
gfx::ConvertYCbCrToRGB32(yuvImage->mData.mYChannel,
yuvImage->mData.mCbChannel,
yuvImage->mData.mCrChannel,
imageSurface->Data(),
0,
0,
size.width,
size.height,
yuvImage->mData.mYStride,
yuvImage->mData.mCbCrStride,
imageSurface->Stride(),
yuvImage->mType);
*aSize = size;
return imageSurface.forget().get();
}
if (mActiveImage->GetFormat() == Image::CAIRO_SURFACE) {
CairoImageOGL *cairoImage =
static_cast<CairoImageOGL*>(mActiveImage.get());
size = cairoImage->mSize;
gl = cairoImage->mTexture.GetGLContext();
tex1 = cairoImage->mTexture.GetTextureID();
}
nsRefPtr<gfxImageSurface> s = gl->ReadTextureImage(tex1, size, LOCAL_GL_RGBA);
*aSize = size;
return s.forget();
}
gfxIntSize
ImageContainerOGL::GetCurrentSize()
{
MutexAutoLock lock(mActiveImageLock);
if (!mActiveImage) {
return gfxIntSize(0,0);
}
if (mActiveImage->GetFormat() == Image::PLANAR_YCBCR) {
PlanarYCbCrImageOGL *yuvImage =
static_cast<PlanarYCbCrImageOGL*>(mActiveImage.get());
if (!yuvImage->HasData()) {
return gfxIntSize(0,0);
}
return yuvImage->mSize;
}
if (mActiveImage->GetFormat() == Image::CAIRO_SURFACE) {
CairoImageOGL *cairoImage =
static_cast<CairoImageOGL*>(mActiveImage.get());
return cairoImage->mSize;
}
#ifdef XP_MACOSX
if (mActiveImage->GetFormat() == Image::MAC_IO_SURFACE) {
MacIOSurfaceImageOGL *ioImage =
static_cast<MacIOSurfaceImageOGL*>(mActiveImage.get());
return ioImage->mSize;
}
#endif
return gfxIntSize(0,0);
}
PRBool
ImageContainerOGL::SetLayerManager(LayerManager *aManager)
{
if (!aManager) {
// the layer manager just entirely went away
// XXX if we don't have context sharing, we should tell our images
// that their textures are no longer valid.
mManager = nsnull;
return PR_TRUE;
}
if (aManager->GetBackendType() != LayerManager::LAYERS_OPENGL) {
return PR_FALSE;
}
LayerManagerOGL* lmOld = static_cast<LayerManagerOGL*>(mManager);
LayerManagerOGL* lmNew = static_cast<LayerManagerOGL*>(aManager);
if (lmOld) {
NS_ASSERTION(lmNew->glForResources() == lmOld->glForResources(),
"We require GL context sharing here!");
lmOld->ForgetImageContainer(this);
}
mManager = aManager;
lmNew->RememberImageContainer(this);
return PR_TRUE;
}
Layer*
ImageLayerOGL::GetLayer()
{
return this;
}
void
ImageLayerOGL::RenderLayer(int,
const nsIntPoint& aOffset)
{
if (!GetContainer())
return;
mOGLManager->MakeCurrent();
nsRefPtr<Image> image = GetContainer()->GetCurrentImage();
if (!image) {
return;
}
if (image->GetFormat() == Image::PLANAR_YCBCR) {
PlanarYCbCrImageOGL *yuvImage =
static_cast<PlanarYCbCrImageOGL*>(image.get());
if (!yuvImage->HasData()) {
return;
}
if (!yuvImage->HasTextures()) {
yuvImage->AllocateTextures(gl());
}
yuvImage->UpdateTextures(gl());
gl()->fActiveTexture(LOCAL_GL_TEXTURE0);
gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, yuvImage->mTextures[0].GetTextureID());
ApplyFilter(mFilter);
gl()->fActiveTexture(LOCAL_GL_TEXTURE1);
gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, yuvImage->mTextures[1].GetTextureID());
ApplyFilter(mFilter);
gl()->fActiveTexture(LOCAL_GL_TEXTURE2);
gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, yuvImage->mTextures[2].GetTextureID());
ApplyFilter(mFilter);
YCbCrTextureLayerProgram *program = mOGLManager->GetYCbCrLayerProgram();
program->Activate();
program->SetLayerQuadRect(nsIntRect(0, 0,
yuvImage->mSize.width,
yuvImage->mSize.height));
program->SetLayerTransform(GetEffectiveTransform());
program->SetLayerOpacity(GetEffectiveOpacity());
program->SetRenderOffset(aOffset);
program->SetYCbCrTextureUnits(0, 1, 2);
DEBUG_GL_ERROR_CHECK(gl());
mOGLManager->BindAndDrawQuad(program);
// We shouldn't need to do this, but do it anyway just in case
// someone else forgets.
gl()->fActiveTexture(LOCAL_GL_TEXTURE0);
} else if (image->GetFormat() == Image::CAIRO_SURFACE) {
CairoImageOGL *cairoImage =
static_cast<CairoImageOGL*>(image.get());
gl()->fActiveTexture(LOCAL_GL_TEXTURE0);
gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, cairoImage->mTexture.GetTextureID());
ColorTextureLayerProgram *program =
mOGLManager->GetColorTextureLayerProgram(cairoImage->mLayerProgram);
ApplyFilter(mFilter);
program->Activate();
program->SetLayerQuadRect(nsIntRect(0, 0,
cairoImage->mSize.width,
cairoImage->mSize.height));
program->SetLayerTransform(GetEffectiveTransform());
program->SetLayerOpacity(GetEffectiveOpacity());
program->SetRenderOffset(aOffset);
program->SetTextureUnit(0);
mOGLManager->BindAndDrawQuad(program);
#ifdef XP_MACOSX
} else if (image->GetFormat() == Image::MAC_IO_SURFACE) {
MacIOSurfaceImageOGL *ioImage =
static_cast<MacIOSurfaceImageOGL*>(image.get());
gl()->fBindTexture(LOCAL_GL_TEXTURE_RECTANGLE_ARB, ioImage->mTexture.GetTextureID());
ColorTextureLayerProgram *program =
mOGLManager->GetRGBARectLayerProgram();
program->Activate();
if (program->GetTexCoordMultiplierUniformLocation() != -1) {
// 2DRect case, get the multiplier right for a sampler2DRect
float f[] = { float(ioImage->mSize.width), float(ioImage->mSize.height) };
program->SetUniform(program->GetTexCoordMultiplierUniformLocation(),
2, f);
} else {
NS_ASSERTION(0, "no rects?");
}
program->SetLayerQuadRect(nsIntRect(0, 0,
ioImage->mSize.width,
ioImage->mSize.height));
program->SetLayerTransform(GetEffectiveTransform());
program->SetLayerOpacity(GetEffectiveOpacity());
program->SetRenderOffset(aOffset);
program->SetTextureUnit(0);
mOGLManager->BindAndDrawQuad(program);
gl()->fBindTexture(LOCAL_GL_TEXTURE_RECTANGLE_ARB, 0);
#endif
}
DEBUG_GL_ERROR_CHECK(gl());
}
static void
InitTexture(GLContext* aGL, GLuint aTexture, GLenum aFormat, const gfxIntSize& aSize)
{
aGL->fBindTexture(LOCAL_GL_TEXTURE_2D, aTexture);
aGL->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_MIN_FILTER, LOCAL_GL_LINEAR);
aGL->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_MAG_FILTER, LOCAL_GL_LINEAR);
aGL->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_S, LOCAL_GL_CLAMP_TO_EDGE);
aGL->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_T, LOCAL_GL_CLAMP_TO_EDGE);
aGL->fTexImage2D(LOCAL_GL_TEXTURE_2D,
0,
aFormat,
aSize.width,
aSize.height,
0,
aFormat,
LOCAL_GL_UNSIGNED_BYTE,
NULL);
}
PlanarYCbCrImageOGL::PlanarYCbCrImageOGL(LayerManagerOGL *aManager,
RecycleBin *aRecycleBin)
: PlanarYCbCrImage(nsnull), mRecycleBin(aRecycleBin), mHasData(PR_FALSE)
{
#if 0
// We really want to allocate this on the decode thread -- but to do that,
// we need to create a per-thread shared GL context, and it will only work
// if we have context sharing. For now, create the textures on the main
// thread the first time we render.
if (aManager) {
AllocateTextures(aManager->glForResources());
}
#endif
}
PlanarYCbCrImageOGL::~PlanarYCbCrImageOGL()
{
if (mBuffer) {
mRecycleBin->RecycleBuffer(mBuffer.forget(), mBufferSize);
}
if (HasTextures()) {
mRecycleBin->RecycleTexture(&mTextures[0], RecycleBin::TEXTURE_Y, mData.mYSize);
mRecycleBin->RecycleTexture(&mTextures[1], RecycleBin::TEXTURE_C, mData.mCbCrSize);
mRecycleBin->RecycleTexture(&mTextures[2], RecycleBin::TEXTURE_C, mData.mCbCrSize);
}
}
void
PlanarYCbCrImageOGL::SetData(const PlanarYCbCrImage::Data &aData)
{
// For now, we copy the data
int width_shift = 0;
int height_shift = 0;
if (aData.mYSize.width == aData.mCbCrSize.width &&
aData.mYSize.height == aData.mCbCrSize.height) {
// YV24 format
width_shift = 0;
height_shift = 0;
mType = gfx::YV24;
} else if (aData.mYSize.width / 2 == aData.mCbCrSize.width &&
aData.mYSize.height == aData.mCbCrSize.height) {
// YV16 format
width_shift = 1;
height_shift = 0;
mType = gfx::YV16;
} else if (aData.mYSize.width / 2 == aData.mCbCrSize.width &&
aData.mYSize.height / 2 == aData.mCbCrSize.height ) {
// YV12 format
width_shift = 1;
height_shift = 1;
mType = gfx::YV12;
} else {
NS_ERROR("YCbCr format not supported");
}
mData = aData;
mData.mCbCrStride = mData.mCbCrSize.width = aData.mPicSize.width >> width_shift;
// Round up the values for width and height to make sure we sample enough data
// for the last pixel - See bug 590735
if (width_shift && (aData.mPicSize.width & 1)) {
mData.mCbCrStride++;
mData.mCbCrSize.width++;
}
mData.mCbCrSize.height = aData.mPicSize.height >> height_shift;
if (height_shift && (aData.mPicSize.height & 1)) {
mData.mCbCrSize.height++;
}
mData.mYSize = aData.mPicSize;
mData.mYStride = mData.mYSize.width;
// Recycle the previous image main-memory buffer now that we're about to get a new buffer
if (mBuffer)
mRecycleBin->RecycleBuffer(mBuffer.forget(), mBufferSize);
// update buffer size
mBufferSize = mData.mCbCrStride * mData.mCbCrSize.height * 2 +
mData.mYStride * mData.mYSize.height;
// get new buffer
mBuffer = mRecycleBin->GetBuffer(mBufferSize);
if (!mBuffer)
return;
mData.mYChannel = mBuffer;
mData.mCbChannel = mData.mYChannel + mData.mYStride * mData.mYSize.height;
mData.mCrChannel = mData.mCbChannel + mData.mCbCrStride * mData.mCbCrSize.height;
int cbcr_x = aData.mPicX >> width_shift;
int cbcr_y = aData.mPicY >> height_shift;
for (int i = 0; i < mData.mYSize.height; i++) {
memcpy(mData.mYChannel + i * mData.mYStride,
aData.mYChannel + ((aData.mPicY + i) * aData.mYStride) + aData.mPicX,
mData.mYStride);
}
for (int i = 0; i < mData.mCbCrSize.height; i++) {
memcpy(mData.mCbChannel + i * mData.mCbCrStride,
aData.mCbChannel + ((cbcr_y + i) * aData.mCbCrStride) + cbcr_x,
mData.mCbCrStride);
}
for (int i = 0; i < mData.mCbCrSize.height; i++) {
memcpy(mData.mCrChannel + i * mData.mCbCrStride,
aData.mCrChannel + ((cbcr_y + i) * aData.mCbCrStride) + cbcr_x,
mData.mCbCrStride);
}
// Fix picture rect to be correct
mData.mPicX = mData.mPicY = 0;
mSize = aData.mPicSize;
mHasData = PR_TRUE;
}
void
PlanarYCbCrImageOGL::AllocateTextures(mozilla::gl::GLContext *gl)
{
gl->MakeCurrent();
mRecycleBin->GetTexture(RecycleBin::TEXTURE_Y, mData.mYSize, gl, &mTextures[0]);
InitTexture(gl, mTextures[0].GetTextureID(), LOCAL_GL_LUMINANCE, mData.mYSize);
mRecycleBin->GetTexture(RecycleBin::TEXTURE_C, mData.mCbCrSize, gl, &mTextures[1]);
InitTexture(gl, mTextures[1].GetTextureID(), LOCAL_GL_LUMINANCE, mData.mCbCrSize);
mRecycleBin->GetTexture(RecycleBin::TEXTURE_C, mData.mCbCrSize, gl, &mTextures[2]);
InitTexture(gl, mTextures[2].GetTextureID(), LOCAL_GL_LUMINANCE, mData.mCbCrSize);
}
void
PlanarYCbCrImageOGL::UpdateTextures(GLContext *gl)
{
if (!mBuffer || !mHasData)
return;
GLint alignment;
if (!((ptrdiff_t)mData.mYStride & 0x7) && !((ptrdiff_t)mData.mYChannel & 0x7)) {
alignment = 8;
} else if (!((ptrdiff_t)mData.mYStride & 0x3)) {
alignment = 4;
} else if (!((ptrdiff_t)mData.mYStride & 0x1)) {
alignment = 2;
} else {
alignment = 1;
}
// Set texture alignment for Y plane.
gl->fPixelStorei(LOCAL_GL_UNPACK_ALIGNMENT, alignment);
gl->fBindTexture(LOCAL_GL_TEXTURE_2D, mTextures[0].GetTextureID());
gl->fTexSubImage2D(LOCAL_GL_TEXTURE_2D, 0,
0, 0, mData.mYSize.width, mData.mYSize.height,
LOCAL_GL_LUMINANCE,
LOCAL_GL_UNSIGNED_BYTE,
mData.mYChannel);
if (!((ptrdiff_t)mData.mCbCrStride & 0x7) &&
!((ptrdiff_t)mData.mCbChannel & 0x7) &&
!((ptrdiff_t)mData.mCrChannel & 0x7))
{
alignment = 8;
} else if (!((ptrdiff_t)mData.mCbCrStride & 0x3)) {
alignment = 4;
} else if (!((ptrdiff_t)mData.mCbCrStride & 0x1)) {
alignment = 2;
} else {
alignment = 1;
}
// Set texture alignment for Cb/Cr plane
gl->fPixelStorei(LOCAL_GL_UNPACK_ALIGNMENT, alignment);
gl->fBindTexture(LOCAL_GL_TEXTURE_2D, mTextures[1].GetTextureID());
gl->fTexSubImage2D(LOCAL_GL_TEXTURE_2D, 0,
0, 0, mData.mCbCrSize.width, mData.mCbCrSize.height,
LOCAL_GL_LUMINANCE,
LOCAL_GL_UNSIGNED_BYTE,
mData.mCbChannel);
gl->fBindTexture(LOCAL_GL_TEXTURE_2D, mTextures[2].GetTextureID());
gl->fTexSubImage2D(LOCAL_GL_TEXTURE_2D, 0,
0, 0, mData.mCbCrSize.width, mData.mCbCrSize.height,
LOCAL_GL_LUMINANCE,
LOCAL_GL_UNSIGNED_BYTE,
mData.mCrChannel);
// Reset alignment to default
gl->fPixelStorei(LOCAL_GL_UNPACK_ALIGNMENT, 4);
}
CairoImageOGL::CairoImageOGL(LayerManagerOGL *aManager)
: CairoImage(nsnull), mSize(0, 0)
{
NS_ASSERTION(NS_IsMainThread(), "Should be on main thread to create a cairo image");
if (aManager) {
// Allocate texture now to grab a reference to the GLContext
mTexture.Allocate(aManager->glForResources());
}
}
void
CairoImageOGL::SetData(const CairoImage::Data &aData)
{
if (!mTexture.IsAllocated())
return;
mozilla::gl::GLContext *gl = mTexture.GetGLContext();
gl->MakeCurrent();
GLuint tex = mTexture.GetTextureID();
gl->fActiveTexture(LOCAL_GL_TEXTURE0);
InitTexture(gl, tex, LOCAL_GL_RGBA, aData.mSize);
mSize = aData.mSize;
if (!mASurfaceAsGLContext) {
mASurfaceAsGLContext = GLContextProvider::CreateForNativePixmapSurface(aData.mSurface);
if (mASurfaceAsGLContext)
mASurfaceAsGLContext->BindTexImage();
}
if (mASurfaceAsGLContext)
return;
mLayerProgram =
gl->UploadSurfaceToTexture(aData.mSurface,
nsIntRect(0,0, mSize.width, mSize.height),
tex);
}
#ifdef MOZ_IPC
ShadowImageLayerOGL::ShadowImageLayerOGL(LayerManagerOGL* aManager)
: ShadowImageLayer(aManager, nsnull)
, LayerOGL(aManager)
{
mImplData = static_cast<LayerOGL*>(this);
}
ShadowImageLayerOGL::~ShadowImageLayerOGL()
{}
PRBool
ShadowImageLayerOGL::Init(gfxSharedImageSurface* aFront,
const nsIntSize& aSize)
{
mDeadweight = aFront;
gfxSize sz = mDeadweight->GetSize();
mTexImage = gl()->CreateTextureImage(nsIntSize(sz.width, sz.height),
mDeadweight->GetContentType(),
LOCAL_GL_CLAMP_TO_EDGE);
return PR_TRUE;
}
already_AddRefed<gfxSharedImageSurface>
ShadowImageLayerOGL::Swap(gfxSharedImageSurface* aNewFront)
{
if (!mDestroyed && mTexImage) {
// XXX this is always just ridiculously slow
gfxSize sz = aNewFront->GetSize();
nsIntRegion updateRegion(nsIntRect(0, 0, sz.width, sz.height));
mTexImage->DirectUpdate(aNewFront, updateRegion);
}
return aNewFront;
}
void
ShadowImageLayerOGL::DestroyFrontBuffer()
{
mTexImage = nsnull;
if (mDeadweight) {
mOGLManager->DestroySharedSurface(mDeadweight, mAllocator);
mDeadweight = nsnull;
}
}
void
ShadowImageLayerOGL::Disconnect()
{
Destroy();
}
void
ShadowImageLayerOGL::Destroy()
{
if (!mDestroyed) {
mDestroyed = PR_TRUE;
mTexImage = nsnull;
}
}
Layer*
ShadowImageLayerOGL::GetLayer()
{
return this;
}
void
ShadowImageLayerOGL::RenderLayer(int aPreviousFrameBuffer,
const nsIntPoint& aOffset)
{
mOGLManager->MakeCurrent();
gl()->fActiveTexture(LOCAL_GL_TEXTURE0);
gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, mTexImage->Texture());
ColorTextureLayerProgram *program =
mOGLManager->GetColorTextureLayerProgram(mTexImage->GetShaderProgramType());
ApplyFilter(mFilter);
program->Activate();
program->SetLayerQuadRect(nsIntRect(nsIntPoint(0, 0), mTexImage->GetSize()));
program->SetLayerTransform(GetEffectiveTransform());
program->SetLayerOpacity(GetEffectiveOpacity());
program->SetRenderOffset(aOffset);
program->SetTextureUnit(0);
mOGLManager->BindAndDrawQuad(program);
DEBUG_GL_ERROR_CHECK(gl());
}
#endif // MOZ_IPC
} /* layers */
} /* mozilla */
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