void ANGLEInstancedArrays::vertexAttribDivisorANGLE(GLuint index, GLuint divisor)
{
if (isLost())
return;
m_context->vertexAttribDivisorANGLE(index, divisor);
}
void ANGLEInstancedArrays::drawArraysInstancedANGLE(GLenum mode, GLint first, GLsizei count, GLsizei primcount)
{
if (isLost())
return;
m_context->drawArraysInstancedANGLE(mode, first, count, primcount);
}
void ANGLEInstancedArrays::drawElementsInstancedANGLE(GLenum mode, GLsizei count, GLenum type, GLintptr offset, GLsizei primcount)
{
if (isLost())
return;
m_context->drawElementsInstancedANGLE(mode, count, type, offset, primcount);
}
void WebGLDrawBuffers::drawBuffersWEBGL(const Vector<GC3Denum>& buffers)
{
if (isLost())
return;
GC3Dsizei n = buffers.size();
const GC3Denum* bufs = buffers.data();
if (!m_context->m_framebufferBinding) {
if (n != 1) {
m_context->synthesizeGLError(GraphicsContext3D::INVALID_VALUE, "drawBuffersWEBGL", "more than one buffer");
return;
}
if (bufs[0] != GraphicsContext3D::BACK && bufs[0] != GraphicsContext3D::NONE) {
m_context->synthesizeGLError(GraphicsContext3D::INVALID_OPERATION, "drawBuffersWEBGL", "BACK or NONE");
return;
}
// Because the backbuffer is simulated on all current WebKit ports, we need to change BACK to COLOR_ATTACHMENT0.
GC3Denum value = (bufs[0] == GraphicsContext3D::BACK) ? GraphicsContext3D::COLOR_ATTACHMENT0 : GraphicsContext3D::NONE;
m_context->graphicsContext3D()->extensions()->drawBuffersEXT(1, &value);
m_context->setBackDrawBuffer(bufs[0]);
} else {
if (n > m_context->maxDrawBuffers()) {
m_context->synthesizeGLError(GraphicsContext3D::INVALID_VALUE, "drawBuffersWEBGL", "more than max draw buffers");
return;
}
for (GC3Dsizei i = 0; i < n; ++i) {
if (bufs[i] != GraphicsContext3D::NONE && bufs[i] != static_cast<GC3Denum>(Extensions3D::COLOR_ATTACHMENT0_EXT + i)) {
m_context->synthesizeGLError(GraphicsContext3D::INVALID_OPERATION, "drawBuffersWEBGL", "COLOR_ATTACHMENTi_EXT or NONE");
return;
}
}
m_context->m_framebufferBinding->drawBuffers(buffers);
}
}
String WebGLDebugShaders::getTranslatedShaderSource(WebGLShader* shader)
{
if (isLost())
return String();
if (!m_context->validateWebGLObject("getTranslatedShaderSource", shader))
return "";
return m_context->ensureNotNull(m_context->webContext()->getTranslatedShaderSourceANGLE(shader->object()));
}
PassRefPtr<WebGLVertexArrayObjectOES> OESVertexArrayObject::createVertexArrayOES()
{
if (isLost())
return 0;
RefPtr<WebGLVertexArrayObjectOES> o = WebGLVertexArrayObjectOES::create(m_context, WebGLVertexArrayObjectOES::VaoTypeUser);
m_context->addContextObject(o.get());
return o.release();
}
GLboolean OESVertexArrayObject::isVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject)
{
if (!arrayObject || isLost())
return 0;
if (!arrayObject->hasEverBeenBound())
return 0;
return m_context->webGraphicsContext3D()->isVertexArrayOES(arrayObject->object());
}
void OESVertexArrayObject::deleteVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject)
{
if (!arrayObject || isLost())
return;
if (!arrayObject->isDefaultObject() && arrayObject == m_context->m_boundVertexArrayObject)
m_context->setBoundVertexArrayObject(0);
arrayObject->deleteObject(m_context->webGraphicsContext3D());
}
GC3Dboolean OESVertexArrayObject::isVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject)
{
if (!arrayObject || isLost())
return 0;
if (!arrayObject->hasEverBeenBound())
return 0;
Extensions3D* extensions = m_context->graphicsContext3D()->extensions();
return extensions->isVertexArrayOES(arrayObject->object());
}
void OESVertexArrayObject::bindVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject)
{
if (isLost())
return;
if (arrayObject && (arrayObject->isDeleted() || !arrayObject->validate(0, context()))) {
m_context->webGraphicsContext3D()->synthesizeGLError(GL_INVALID_OPERATION);
return;
}
if (arrayObject && !arrayObject->isDefaultObject() && arrayObject->object()) {
m_context->webGraphicsContext3D()->bindVertexArrayOES(arrayObject->object());
arrayObject->setHasEverBeenBound();
m_context->setBoundVertexArrayObject(arrayObject);
} else {
m_context->webGraphicsContext3D()->bindVertexArrayOES(0);
m_context->setBoundVertexArrayObject(0);
}
}
