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#include "precompiled.h"
//
// Copyright (c) 2012-2014 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// RenderTarget9.cpp: Implements a D3D9-specific wrapper for IDirect3DSurface9
// pointers retained by renderbuffers.
#include "libGLESv2/renderer/d3d/d3d9/RenderTarget9.h"
#include "libGLESv2/renderer/d3d/d3d9/Renderer9.h"
#include "libGLESv2/renderer/d3d/d3d9/renderer9_utils.h"
#include "libGLESv2/renderer/d3d/d3d9/formatutils9.h"
#include "libGLESv2/main.h"
namespace rx
{
// TODO: AddRef the incoming surface to take ownership instead of expecting that its ref is being given.
RenderTarget9::RenderTarget9(Renderer *renderer, IDirect3DSurface9 *surface)
{
mRenderer = Renderer9::makeRenderer9(renderer);
mRenderTarget = surface;
if (mRenderTarget)
{
D3DSURFACE_DESC description;
mRenderTarget->GetDesc(&description);
mWidth = description.Width;
mHeight = description.Height;
mDepth = 1;
mInternalFormat = d3d9_gl::GetInternalFormat(description.Format);
mActualFormat = d3d9_gl::GetInternalFormat(description.Format);
mSamples = d3d9_gl::GetSamplesCount(description.MultiSampleType);
}
}
RenderTarget9::RenderTarget9(Renderer *renderer, GLsizei width, GLsizei height, GLenum internalFormat, GLsizei samples)
{
mRenderer = Renderer9::makeRenderer9(renderer);
mRenderTarget = NULL;
D3DFORMAT renderFormat = gl_d3d9::GetRenderFormat(internalFormat);
int supportedSamples = mRenderer->getNearestSupportedSamples(renderFormat, samples);
if (supportedSamples == -1)
{
gl::error(GL_OUT_OF_MEMORY);
return;
}
HRESULT result = D3DERR_INVALIDCALL;
if (width > 0 && height > 0)
{
IDirect3DDevice9 *device = mRenderer->getDevice();
bool requiresInitialization = false;
if (gl::GetDepthBits(internalFormat) > 0 ||
gl::GetStencilBits(internalFormat) > 0)
{
result = device->CreateDepthStencilSurface(width, height, renderFormat,
gl_d3d9::GetMultisampleType(supportedSamples),
0, FALSE, &mRenderTarget, NULL);
}
else
{
requiresInitialization = gl_d3d9::RequiresTextureDataInitialization(internalFormat);
result = device->CreateRenderTarget(width, height, renderFormat,
gl_d3d9::GetMultisampleType(supportedSamples),
0, FALSE, &mRenderTarget, NULL);
}
if (result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY)
{
gl::error(GL_OUT_OF_MEMORY);
return;
}
ASSERT(SUCCEEDED(result));
if (requiresInitialization)
{
// This format requires that the data be initialized before the render target can be used
// Unfortunately this requires a Get call on the d3d device but it is far better than having
// to mark the render target as lockable and copy data to the gpu.
IDirect3DSurface9 *prevRenderTarget = NULL;
device->GetRenderTarget(0, &prevRenderTarget);
device->SetRenderTarget(0, mRenderTarget);
device->Clear(0, NULL, D3DCLEAR_TARGET, D3DCOLOR_RGBA(0, 0, 0, 255), 0.0f, 0);
device->SetRenderTarget(0, prevRenderTarget);
}
}
mWidth = width;
mHeight = height;
mDepth = 1;
mInternalFormat = internalFormat;
mSamples = supportedSamples;
mActualFormat = d3d9_gl::GetInternalFormat(renderFormat);
}
RenderTarget9::~RenderTarget9()
{
SafeRelease(mRenderTarget);
}
RenderTarget9 *RenderTarget9::makeRenderTarget9(RenderTarget *target)
{
ASSERT(HAS_DYNAMIC_TYPE(rx::RenderTarget9*, target));
return static_cast<rx::RenderTarget9*>(target);
}
void RenderTarget9::invalidate(GLint x, GLint y, GLsizei width, GLsizei height)
{
// Currently a no-op
}
IDirect3DSurface9 *RenderTarget9::getSurface()
{
// Caller is responsible for releasing the returned surface reference.
// TODO: remove the AddRef to match RenderTarget11
if (mRenderTarget)
{
mRenderTarget->AddRef();
}
return mRenderTarget;
}
}
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