// |aTexCoordRect| is the rectangle from the texture that we want to
// draw using the given program. The program already has a necessary
// offset and scale, so the geometry that needs to be drawn is a unit
// square from 0,0 to 1,1.
//
// |aTexSize| is the actual size of the texture, as it can be larger
// than the rectangle given by |aTexCoordRect|.
void
LayerManagerOGL::BindAndDrawQuadWithTextureRect(LayerProgram *aProg,
const nsIntRect& aTexCoordRect,
const nsIntSize& aTexSize,
GLenum aWrapMode)
{
GLuint vertAttribIndex =
aProg->AttribLocation(LayerProgram::VertexAttrib);
GLuint texCoordAttribIndex =
aProg->AttribLocation(LayerProgram::TexCoordAttrib);
NS_ASSERTION(texCoordAttribIndex != GLuint(-1), "no texture coords?");
// clear any bound VBO so that glVertexAttribPointer() goes back to
// "pointer mode"
mGLContext->fBindBuffer(LOCAL_GL_ARRAY_BUFFER, 0);
// Given what we know about these textures and coordinates, we can
// compute fmod(t, 1.0f) to get the same texture coordinate out. If
// the texCoordRect dimension is < 0 or > width/height, then we have
// wraparound that we need to deal with by drawing multiple quads,
// because we can't rely on full non-power-of-two texture support
// (which is required for the REPEAT wrap mode).
GLContext::RectTriangles rects;
if (aWrapMode == LOCAL_GL_REPEAT) {
rects.addRect(/* dest rectangle */
0.0f, 0.0f, 1.0f, 1.0f,
/* tex coords */
aTexCoordRect.x / GLfloat(aTexSize.width),
aTexCoordRect.y / GLfloat(aTexSize.height),
aTexCoordRect.XMost() / GLfloat(aTexSize.width),
aTexCoordRect.YMost() / GLfloat(aTexSize.height));
} else {
GLContext::DecomposeIntoNoRepeatTriangles(aTexCoordRect, aTexSize, rects);
}
mGLContext->fVertexAttribPointer(vertAttribIndex, 2,
LOCAL_GL_FLOAT, LOCAL_GL_FALSE, 0,
rects.vertexPointer());
mGLContext->fVertexAttribPointer(texCoordAttribIndex, 2,
LOCAL_GL_FLOAT, LOCAL_GL_FALSE, 0,
rects.texCoordPointer());
{
mGLContext->fEnableVertexAttribArray(texCoordAttribIndex);
{
mGLContext->fEnableVertexAttribArray(vertAttribIndex);
mGLContext->fDrawArrays(LOCAL_GL_TRIANGLES, 0, rects.elements());
mGLContext->fDisableVertexAttribArray(vertAttribIndex);
}
mGLContext->fDisableVertexAttribArray(texCoordAttribIndex);
}
}
void
ImageLayerOGL::RenderLayer(int,
const nsIntPoint& aOffset)
{
nsRefPtr<ImageContainer> container = GetContainer();
if (!container)
return;
mOGLManager->MakeCurrent();
AutoLockImage autoLock(container);
Image *image = autoLock.GetImage();
if (!image) {
return;
}
NS_ASSERTION(image->GetFormat() != Image::REMOTE_IMAGE_BITMAP,
"Remote images aren't handled yet in OGL layers!");
NS_ASSERTION(mScaleMode == SCALE_NONE,
"Scale modes other than none not handled yet in OGL layers!");
if (image->GetFormat() == Image::PLANAR_YCBCR) {
PlanarYCbCrImage *yuvImage =
static_cast<PlanarYCbCrImage*>(image);
if (!yuvImage->mBufferSize) {
return;
}
PlanarYCbCrOGLBackendData *data =
static_cast<PlanarYCbCrOGLBackendData*>(yuvImage->GetBackendData(LayerManager::LAYERS_OPENGL));
if (data && data->mTextures->GetGLContext() != gl()) {
// If these textures were allocated by another layer manager,
// clear them out and re-allocate below.
data = nsnull;
yuvImage->SetBackendData(LayerManager::LAYERS_OPENGL, nsnull);
}
if (!data) {
AllocateTexturesYCbCr(yuvImage);
data = static_cast<PlanarYCbCrOGLBackendData*>(yuvImage->GetBackendData(LayerManager::LAYERS_OPENGL));
}
if (!data || data->mTextures->GetGLContext() != gl()) {
// XXX - Can this ever happen? If so I need to fix this!
return;
}
gl()->MakeCurrent();
gl()->fActiveTexture(LOCAL_GL_TEXTURE2);
gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, data->mTextures[2].GetTextureID());
gl()->ApplyFilterToBoundTexture(mFilter);
gl()->fActiveTexture(LOCAL_GL_TEXTURE1);
gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, data->mTextures[1].GetTextureID());
gl()->ApplyFilterToBoundTexture(mFilter);
gl()->fActiveTexture(LOCAL_GL_TEXTURE0);
gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, data->mTextures[0].GetTextureID());
gl()->ApplyFilterToBoundTexture(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);
mOGLManager->BindAndDrawQuadWithTextureRect(program,
yuvImage->mData.GetPictureRect(),
nsIntSize(yuvImage->mData.mYSize.width,
yuvImage->mData.mYSize.height));
// 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) {
CairoImage *cairoImage =
static_cast<CairoImage*>(image);
if (!cairoImage->mSurface) {
return;
}
CairoOGLBackendData *data =
static_cast<CairoOGLBackendData*>(cairoImage->GetBackendData(LayerManager::LAYERS_OPENGL));
if (data && data->mTexture.GetGLContext() != gl()) {
// If this texture was allocated by another layer manager, clear
// it out and re-allocate below.
data = nsnull;
cairoImage->SetBackendData(LayerManager::LAYERS_OPENGL, nsnull);
}
if (!data) {
AllocateTexturesCairo(cairoImage);
data = static_cast<CairoOGLBackendData*>(cairoImage->GetBackendData(LayerManager::LAYERS_OPENGL));
}
if (!data || data->mTexture.GetGLContext() != gl()) {
// XXX - Can this ever happen? If so I need to fix this!
return;
}
gl()->MakeCurrent();
unsigned int iwidth = cairoImage->mSize.width;
unsigned int iheight = cairoImage->mSize.height;
gl()->fActiveTexture(LOCAL_GL_TEXTURE0);
gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, data->mTexture.GetTextureID());
#if defined(MOZ_WIDGET_GTK2) && !defined(MOZ_PLATFORM_MAEMO)
GLXPixmap pixmap;
if (cairoImage->mSurface) {
pixmap = sGLXLibrary.CreatePixmap(cairoImage->mSurface);
NS_ASSERTION(pixmap, "Failed to create pixmap!");
if (pixmap) {
sGLXLibrary.BindTexImage(pixmap);
}
}
#endif
ColorTextureLayerProgram *program =
mOGLManager->GetColorTextureLayerProgram(data->mLayerProgram);
gl()->ApplyFilterToBoundTexture(mFilter);
program->Activate();
// The following uniform controls the scaling of the vertex coords.
// Instead of setting the scale here and using coords in the range [0,1], we
// set an identity transform and use pixel coordinates below
program->SetLayerQuadRect(nsIntRect(0, 0, 1, 1));
program->SetLayerTransform(GetEffectiveTransform());
program->SetLayerOpacity(GetEffectiveOpacity());
program->SetRenderOffset(aOffset);
program->SetTextureUnit(0);
nsIntRect rect = GetVisibleRegion().GetBounds();
GLContext::RectTriangles triangleBuffer;
float tex_offset_u = float(rect.x % iwidth) / iwidth;
float tex_offset_v = float(rect.y % iheight) / iheight;
triangleBuffer.addRect(rect.x, rect.y,
rect.x + rect.width, rect.y + rect.height,
tex_offset_u, tex_offset_v,
tex_offset_u + float(rect.width) / float(iwidth),
tex_offset_v + float(rect.height) / float(iheight));
GLuint vertAttribIndex =
program->AttribLocation(LayerProgram::VertexAttrib);
GLuint texCoordAttribIndex =
program->AttribLocation(LayerProgram::TexCoordAttrib);
NS_ASSERTION(texCoordAttribIndex != GLuint(-1), "no texture coords?");
gl()->fBindBuffer(LOCAL_GL_ARRAY_BUFFER, 0);
gl()->fVertexAttribPointer(vertAttribIndex, 2,
LOCAL_GL_FLOAT, LOCAL_GL_FALSE, 0,
triangleBuffer.vertexPointer());
gl()->fVertexAttribPointer(texCoordAttribIndex, 2,
LOCAL_GL_FLOAT, LOCAL_GL_FALSE, 0,
triangleBuffer.texCoordPointer());
{
gl()->fEnableVertexAttribArray(texCoordAttribIndex);
{
gl()->fEnableVertexAttribArray(vertAttribIndex);
gl()->fDrawArrays(LOCAL_GL_TRIANGLES, 0, triangleBuffer.elements());
gl()->fDisableVertexAttribArray(vertAttribIndex);
}
gl()->fDisableVertexAttribArray(texCoordAttribIndex);
}
#if defined(MOZ_WIDGET_GTK2) && !defined(MOZ_PLATFORM_MAEMO)
if (cairoImage->mSurface && pixmap) {
sGLXLibrary.ReleaseTexImage(pixmap);
sGLXLibrary.DestroyPixmap(pixmap);
}
#endif
#ifdef XP_MACOSX
} else if (image->GetFormat() == Image::MAC_IO_SURFACE) {
MacIOSurfaceImage *ioImage =
static_cast<MacIOSurfaceImage*>(image);
if (!mOGLManager->GetThebesLayerCallback()) {
// If its an empty transaction we still need to update
// the plugin IO Surface and make sure we grab the
// new image
ioImage->Update(GetContainer());
image = nsnull;
autoLock.Refresh();
image = autoLock.GetImage();
gl()->MakeCurrent();
ioImage = static_cast<MacIOSurfaceImage*>(image);
}
if (!ioImage) {
return;
}
gl()->fActiveTexture(LOCAL_GL_TEXTURE0);
if (!ioImage->GetBackendData(LayerManager::LAYERS_OPENGL)) {
AllocateTextureIOSurface(ioImage, gl());
}
MacIOSurfaceImageOGLBackendData *data =
static_cast<MacIOSurfaceImageOGLBackendData*>(ioImage->GetBackendData(LayerManager::LAYERS_OPENGL));
gl()->fActiveTexture(LOCAL_GL_TEXTURE0);
gl()->fBindTexture(LOCAL_GL_TEXTURE_RECTANGLE_ARB, data->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->GetSize().width), float(ioImage->GetSize().height) };
program->SetUniform(program->GetTexCoordMultiplierUniformLocation(),
2, f);
} else {
NS_ASSERTION(0, "no rects?");
}
program->SetLayerQuadRect(nsIntRect(0, 0,
ioImage->GetSize().width,
ioImage->GetSize().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
}
GetContainer()->NotifyPaintedImage(image);
}
// |aTexCoordRect| is the rectangle from the texture that we want to
// draw using the given program. The program already has a necessary
// offset and scale, so the geometry that needs to be drawn is a unit
// square from 0,0 to 1,1.
//
// |aTexSize| is the actual size of the texture, as it can be larger
// than the rectangle given by |aTexCoordRect|.
void
CompositorOGL::BindAndDrawQuadWithTextureRect(ShaderProgramOGL *aProg,
const Rect& aTexCoordRect,
TextureSource *aTexture)
{
NS_ASSERTION(aProg->HasInitialized(), "Shader program not correctly initialized");
GLuint vertAttribIndex =
aProg->AttribLocation(ShaderProgramOGL::VertexCoordAttrib);
GLuint texCoordAttribIndex =
aProg->AttribLocation(ShaderProgramOGL::TexCoordAttrib);
NS_ASSERTION(texCoordAttribIndex != GLuint(-1), "no texture coords?");
// Given what we know about these textures and coordinates, we can
// compute fmod(t, 1.0f) to get the same texture coordinate out. If
// the texCoordRect dimension is < 0 or > width/height, then we have
// wraparound that we need to deal with by drawing multiple quads,
// because we can't rely on full non-power-of-two texture support
// (which is required for the REPEAT wrap mode).
GLContext::RectTriangles rects;
GLenum wrapMode = aTexture->AsSourceOGL()->GetWrapMode();
IntSize realTexSize = aTexture->GetSize();
if (!mGLContext->CanUploadNonPowerOfTwo()) {
realTexSize = IntSize(NextPowerOfTwo(realTexSize.width),
NextPowerOfTwo(realTexSize.height));
}
// We need to convert back to actual texels here to get proper behaviour with
// our GL helper functions. Should fix this sometime.
// I want to vomit.
IntRect texCoordRect = IntRect(NS_roundf(aTexCoordRect.x * aTexture->GetSize().width),
NS_roundf(aTexCoordRect.y * aTexture->GetSize().height),
NS_roundf(aTexCoordRect.width * aTexture->GetSize().width),
NS_roundf(aTexCoordRect.height * aTexture->GetSize().height));
// This is fairly disgusting - if the texture should be flipped it will have a
// negative height, in which case we un-invert the texture coords and pass the
// flipped 'flag' to the functions below. We can't just use the inverted coords
// because our GL funtions use an explicit flag.
bool flipped = false;
if (texCoordRect.height < 0) {
flipped = true;
texCoordRect.y = texCoordRect.YMost();
texCoordRect.height = -texCoordRect.height;
}
if (wrapMode == LOCAL_GL_REPEAT) {
rects.addRect(/* dest rectangle */
0.0f, 0.0f, 1.0f, 1.0f,
/* tex coords */
texCoordRect.x / GLfloat(realTexSize.width),
texCoordRect.y / GLfloat(realTexSize.height),
texCoordRect.XMost() / GLfloat(realTexSize.width),
texCoordRect.YMost() / GLfloat(realTexSize.height),
flipped);
} else {
nsIntRect tcRect(texCoordRect.x, texCoordRect.y,
texCoordRect.width, texCoordRect.height);
GLContext::DecomposeIntoNoRepeatTriangles(tcRect,
nsIntSize(realTexSize.width, realTexSize.height),
rects, flipped);
}
DrawWithVertexBuffer2(mGLContext, mVBOs,
LOCAL_GL_TRIANGLES, rects.elements(),
vertAttribIndex, rects.vertexPointer(),
texCoordAttribIndex, rects.texCoordPointer());
}
