#include "config.h"
#if ENABLE(3D_CANVAS)
#include "WebGLProgram.h"
#include "WebGLRenderingContext.h"
namespace WebCore {
PassRefPtr<WebGLProgram> WebGLProgram::create(WebGLRenderingContext* ctx)
{
return adoptRef(new WebGLProgram(ctx));
}
WebGLProgram::WebGLProgram(WebGLRenderingContext* ctx)
: CanvasObject(ctx)
{
setObject(context()->graphicsContext3D()->createProgram());
}
void WebGLProgram::_deleteObject(Platform3DObject object)
{
context()->graphicsContext3D()->deleteProgram(object);
}
bool WebGLProgram::cacheActiveAttribLocations()
{
m_activeAttribLocations.clear();
if (!object())
return false;
GraphicsContext3D* context3d = context()->graphicsContext3D();
int linkStatus;
context3d->getProgramiv(this, GraphicsContext3D::LINK_STATUS, &linkStatus);
if (!linkStatus)
return false;
int numAttribs = 0;
context3d->getProgramiv(this, GraphicsContext3D::ACTIVE_ATTRIBUTES, &numAttribs);
m_activeAttribLocations.resize(static_cast<size_t>(numAttribs));
for (int i = 0; i < numAttribs; ++i) {
ActiveInfo info;
context3d->getActiveAttrib(this, i, info);
m_activeAttribLocations[i] = context3d->getAttribLocation(this, info.name.charactersWithNullTermination());
}
return true;
}
int WebGLProgram::numActiveAttribLocations()
{
return static_cast<int>(m_activeAttribLocations.size());
}
int WebGLProgram::getActiveAttribLocation(int index)
{
if (index < 0 || index >= numActiveAttribLocations())
return -1;
return m_activeAttribLocations[static_cast<size_t>(index)];
}
}
#endif // ENABLE(3D_CANVAS)