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/*
* Copyright (c) 2013 The WebRTC 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 in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "test/win/d3d_renderer.h"
#include "common_video/libyuv/include/webrtc_libyuv.h"
#include "rtc_base/checks.h"
namespace webrtc {
namespace test {
#define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZ | D3DFVF_TEX1)
struct D3dCustomVertex {
float x, y, z;
float u, v;
};
const char kD3DClassName[] = "d3d_renderer";
VideoRenderer* VideoRenderer::CreatePlatformRenderer(const char* window_title,
size_t width,
size_t height) {
return D3dRenderer::Create(window_title, width, height);
}
D3dRenderer::D3dRenderer(size_t width, size_t height)
: width_(width),
height_(height),
hwnd_(NULL),
d3d_(nullptr),
d3d_device_(nullptr),
texture_(nullptr),
vertex_buffer_(nullptr) {
RTC_DCHECK_GT(width, 0);
RTC_DCHECK_GT(height, 0);
}
D3dRenderer::~D3dRenderer() {
Destroy();
}
LRESULT WINAPI D3dRenderer::WindowProc(HWND hwnd,
UINT msg,
WPARAM wparam,
LPARAM lparam) {
if (msg == WM_DESTROY || (msg == WM_CHAR && wparam == VK_RETURN)) {
PostQuitMessage(0);
return 0;
}
return DefWindowProcA(hwnd, msg, wparam, lparam);
}
void D3dRenderer::Destroy() {
texture_ = nullptr;
vertex_buffer_ = nullptr;
d3d_device_ = nullptr;
d3d_ = nullptr;
if (hwnd_ != NULL) {
DestroyWindow(hwnd_);
RTC_DCHECK(!IsWindow(hwnd_));
hwnd_ = NULL;
}
}
bool D3dRenderer::Init(const char* window_title) {
hwnd_ = CreateWindowA(kD3DClassName, window_title, WS_OVERLAPPEDWINDOW, 0, 0,
static_cast<int>(width_), static_cast<int>(height_),
NULL, NULL, NULL, NULL);
if (hwnd_ == NULL) {
Destroy();
return false;
}
d3d_ = Direct3DCreate9(D3D_SDK_VERSION);
if (d3d_ == nullptr) {
Destroy();
return false;
}
D3DPRESENT_PARAMETERS d3d_params = {};
d3d_params.Windowed = TRUE;
d3d_params.SwapEffect = D3DSWAPEFFECT_COPY;
IDirect3DDevice9* d3d_device;
if (d3d_->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hwnd_,
D3DCREATE_SOFTWARE_VERTEXPROCESSING, &d3d_params,
&d3d_device) != D3D_OK) {
Destroy();
return false;
}
d3d_device_ = d3d_device;
d3d_device->Release();
IDirect3DVertexBuffer9* vertex_buffer;
const int kRectVertices = 4;
if (d3d_device_->CreateVertexBuffer(kRectVertices * sizeof(D3dCustomVertex),
0, D3DFVF_CUSTOMVERTEX, D3DPOOL_MANAGED,
&vertex_buffer, NULL) != D3D_OK) {
Destroy();
return false;
}
vertex_buffer_ = vertex_buffer;
vertex_buffer->Release();
d3d_device_->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE);
d3d_device_->SetRenderState(D3DRS_LIGHTING, FALSE);
Resize(width_, height_);
ShowWindow(hwnd_, SW_SHOWNOACTIVATE);
d3d_device_->Present(NULL, NULL, NULL, NULL);
return true;
}
D3dRenderer* D3dRenderer::Create(const char* window_title,
size_t width,
size_t height) {
static ATOM wc_atom = 0;
if (wc_atom == 0) {
WNDCLASSA wc = {};
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = WindowProc;
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = reinterpret_cast<HBRUSH>(COLOR_WINDOW);
wc.lpszClassName = kD3DClassName;
wc_atom = RegisterClassA(&wc);
if (wc_atom == 0)
return nullptr;
}
D3dRenderer* d3d_renderer = new D3dRenderer(width, height);
if (!d3d_renderer->Init(window_title)) {
delete d3d_renderer;
return nullptr;
}
return d3d_renderer;
}
void D3dRenderer::Resize(size_t width, size_t height) {
width_ = width;
height_ = height;
IDirect3DTexture9* texture;
d3d_device_->CreateTexture(static_cast<UINT>(width_),
static_cast<UINT>(height_), 1, 0, D3DFMT_A8R8G8B8,
D3DPOOL_MANAGED, &texture, NULL);
texture_ = texture;
texture->Release();
// Vertices for the video frame to be rendered to.
static const D3dCustomVertex rect[] = {
{-1.0f, -1.0f, 0.0f, 0.0f, 1.0f},
{-1.0f, 1.0f, 0.0f, 0.0f, 0.0f},
{1.0f, -1.0f, 0.0f, 1.0f, 1.0f},
{1.0f, 1.0f, 0.0f, 1.0f, 0.0f},
};
void* buf_data;
if (vertex_buffer_->Lock(0, 0, &buf_data, 0) != D3D_OK)
return;
memcpy(buf_data, &rect, sizeof(rect));
vertex_buffer_->Unlock();
}
void D3dRenderer::OnFrame(const webrtc::VideoFrame& frame) {
if (static_cast<size_t>(frame.width()) != width_ ||
static_cast<size_t>(frame.height()) != height_) {
Resize(static_cast<size_t>(frame.width()),
static_cast<size_t>(frame.height()));
}
D3DLOCKED_RECT lock_rect;
if (texture_->LockRect(0, &lock_rect, NULL, 0) != D3D_OK)
return;
ConvertFromI420(frame, VideoType::kARGB, 0,
static_cast<uint8_t*>(lock_rect.pBits));
texture_->UnlockRect(0);
d3d_device_->BeginScene();
d3d_device_->SetFVF(D3DFVF_CUSTOMVERTEX);
d3d_device_->SetStreamSource(0, vertex_buffer_.get(), 0,
sizeof(D3dCustomVertex));
d3d_device_->SetTexture(0, texture_.get());
d3d_device_->DrawPrimitive(D3DPT_TRIANGLESTRIP, 0, 2);
d3d_device_->EndScene();
d3d_device_->Present(NULL, NULL, NULL, NULL);
}
} // namespace test
} // namespace webrtc
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