void
GL::EnableStencilTest(BinaryStencilTest aTest,
GLint aComparand, GLuint aTestMask,
StencilOperation aOp, GLuint aWriteMask)
{
MOZ_ASSERT(IsCurrent());
if (!mStencilTestEnabled) {
Enable(GL_STENCIL_TEST);
mStencilTestEnabled = true;
}
if (mStencilTest != aTest || mStencilComparand != aComparand
|| mStencilTestMask != aTestMask) {
GLenum func;
switch (aTest) {
default:
MOZ_ASSERT(!"Invalid stencil test");
case ALWAYS_PASS:
func = GL_ALWAYS;
break;
case PASS_IF_EQUAL:
func = GL_EQUAL;
break;
case PASS_IF_NOT_EQUAL:
func = GL_NOTEQUAL;
break;
}
StencilFunc(func, aComparand, aTestMask);
mStencilTest = aTest;
mStencilComparand = aComparand;
mStencilTestMask = aTestMask;
}
if (mStencilOp != aOp) {
switch (aOp) {
case LEAVE_UNCHANGED:
StencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
break;
case CLEAR_PASSING_VALUES:
StencilOp(GL_KEEP, GL_ZERO, GL_ZERO);
break;
case REPLACE_PASSING_WITH_COMPARAND:
StencilOp(GL_KEEP, GL_REPLACE, GL_REPLACE);
break;
case REPLACE_PASSING_CLEAR_FAILING:
StencilOp(GL_ZERO, GL_REPLACE, GL_REPLACE);
break;
}
mStencilOp = aOp;
}
if (mStencilWriteMask != aWriteMask) {
StencilMask(aWriteMask);
mStencilWriteMask = aWriteMask;
}
}
bool SkOSWindow::attachANGLE(int msaaSampleCount, AttachmentInfo* info) {
if (EGL_NO_DISPLAY == fDisplay) {
bool bResult = create_ANGLE((HWND)fHWND,
msaaSampleCount,
&fDisplay,
&fContext,
&fSurface,
&fConfig);
if (false == bResult) {
return false;
}
SkAutoTUnref<const GrGLInterface> intf(GrGLCreateANGLEInterface());
if (intf) {
ANGLE_GL_CALL(intf, ClearStencil(0));
ANGLE_GL_CALL(intf, ClearColor(0, 0, 0, 0));
ANGLE_GL_CALL(intf, StencilMask(0xffffffff));
ANGLE_GL_CALL(intf, Clear(GL_STENCIL_BUFFER_BIT |GL_COLOR_BUFFER_BIT));
}
}
if (eglMakeCurrent(fDisplay, fSurface, fSurface, fContext)) {
eglGetConfigAttrib(fDisplay, fConfig, EGL_STENCIL_SIZE, &info->fStencilBits);
eglGetConfigAttrib(fDisplay, fConfig, EGL_SAMPLES, &info->fSampleCount);
SkAutoTUnref<const GrGLInterface> intf(GrGLCreateANGLEInterface());
if (intf ) {
ANGLE_GL_CALL(intf, Viewport(0, 0,
SkScalarRoundToInt(this->width()),
SkScalarRoundToInt(this->height())));
}
return true;
}
return false;
}
bool SkOSWindow::attachANGLE(int msaaSampleCount, AttachmentInfo* info) {
if (EGL_NO_DISPLAY == fDisplay) {
bool bResult = create_ANGLE((HWND)fHWND,
msaaSampleCount,
&fDisplay,
&fContext,
&fSurface,
&fConfig);
if (false == bResult) {
return false;
}
fANGLEInterface.reset(get_angle_gl_interface());
if (!fANGLEInterface) {
this->detachANGLE();
return false;
}
GL_CALL(fANGLEInterface, ClearStencil(0));
GL_CALL(fANGLEInterface, ClearColor(0, 0, 0, 0));
GL_CALL(fANGLEInterface, StencilMask(0xffffffff));
GL_CALL(fANGLEInterface, Clear(GL_STENCIL_BUFFER_BIT | GL_COLOR_BUFFER_BIT));
}
if (!eglMakeCurrent(fDisplay, fSurface, fSurface, fContext)) {
this->detachANGLE();
return false;
}
eglGetConfigAttrib(fDisplay, fConfig, EGL_STENCIL_SIZE, &info->fStencilBits);
eglGetConfigAttrib(fDisplay, fConfig, EGL_SAMPLES, &info->fSampleCount);
GL_CALL(fANGLEInterface, Viewport(0, 0, SkScalarRoundToInt(this->width()),
SkScalarRoundToInt(this->height())));
return true;
}
bool SkOSWindow::attachCommandBuffer(int msaaSampleCount, AttachmentInfo* info) {
if (!fCommandBuffer) {
fCommandBuffer = SkCommandBufferGLContext::Create((HWND)fHWND, msaaSampleCount);
if (!fCommandBuffer)
return false;
SkAutoTUnref<const GrGLInterface> intf(GrGLCreateCommandBufferInterface());
if (intf) {
GL_CALL(intf, ClearStencil(0));
GL_CALL(intf, ClearColor(0, 0, 0, 0));
GL_CALL(intf, StencilMask(0xffffffff));
GL_CALL(intf, Clear(GL_STENCIL_BUFFER_BIT |GL_COLOR_BUFFER_BIT));
}
}
if (fCommandBuffer->makeCurrent()) {
info->fStencilBits = fCommandBuffer->getStencilBits();
info->fSampleCount = fCommandBuffer->getSampleCount();
SkAutoTUnref<const GrGLInterface> intf(GrGLCreateCommandBufferInterface());
if (intf ) {
GL_CALL(intf, Viewport(0, 0, SkScalarRoundToInt(this->width()),
SkScalarRoundToInt(this->height())));
}
return true;
}
return false;
}
StencilMask *StencilMask::getOrCreate(uint frontMask, uint backMask)
{
return getOrCreateImpl(StencilMask(frontMask, backMask));
}