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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
extern "C" {
#if defined(GLES2_CONFORM_SUPPORT_ONLY)
#include "gpu/gles2_conform_support/gtf/gtf_stubs.h"
#else
#include "third_party/gles2_conform/GTF_ES/glsl/GTF/Source/eglNative.h"
#endif
}
#include <string>
namespace {
LPCTSTR kWindowClassName = TEXT("ES2CONFORM");
LRESULT CALLBACK WindowProc(HWND hwnd, UINT msg,
WPARAM w_param, LPARAM l_param) {
LRESULT result = 0;
switch (msg) {
case WM_CLOSE:
::DestroyWindow(hwnd);
break;
case WM_DESTROY:
::PostQuitMessage(0);
break;
case WM_ERASEBKGND:
// Return a non-zero value to indicate that the background has been
// erased.
result = 1;
break;
default:
result = ::DefWindowProc(hwnd, msg, w_param, l_param);
break;
}
return result;
}
} // namespace.
extern "C" {
GTFbool GTFNativeCreateDisplay(EGLNativeDisplayType *pNativeDisplay) {
*pNativeDisplay = EGL_DEFAULT_DISPLAY;
return GTFtrue;
}
void GTFNativeDestroyDisplay(EGLNativeDisplayType nativeDisplay) {
// Nothing to destroy since we are using EGL_DEFAULT_DISPLAY
}
GTFbool GTFNativeCreateWindow(EGLNativeDisplayType nativeDisplay,
EGLDisplay eglDisplay, EGLConfig eglConfig,
const char* title, int width, int height,
EGLNativeWindowType *pNativeWindow) {
WNDCLASS wnd_class = {0};
HINSTANCE instance = GetModuleHandle(NULL);
wnd_class.style = CS_OWNDC;
wnd_class.lpfnWndProc = WindowProc;
wnd_class.hInstance = instance;
wnd_class.hbrBackground =
reinterpret_cast<HBRUSH>(GetStockObject(BLACK_BRUSH));
wnd_class.lpszClassName = kWindowClassName;
if (!RegisterClass(&wnd_class))
return GTFfalse;
DWORD wnd_style = WS_OVERLAPPEDWINDOW | WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
RECT wnd_rect;
wnd_rect.left = 0;
wnd_rect.top = 0;
wnd_rect.right = width;
wnd_rect.bottom = height;
if (!AdjustWindowRect(&wnd_rect, wnd_style, FALSE))
return GTFfalse;
#ifdef UNICODE
// Convert ascii string to wide string.
const std::wstring wnd_title(title, title + strlen(title));
#else
const std::string wnd_title = title;
#endif // UNICODE
HWND hwnd = CreateWindow(
wnd_class.lpszClassName,
wnd_title.c_str(),
wnd_style,
0,
0,
wnd_rect.right - wnd_rect.left,
wnd_rect.bottom - wnd_rect.top,
NULL,
NULL,
instance,
NULL);
if (hwnd == NULL)
return GTFfalse;
ShowWindow(hwnd, SW_SHOWNORMAL);
*pNativeWindow = hwnd;
return GTFtrue;
}
void GTFNativeDestroyWindow(EGLNativeDisplayType nativeDisplay,
EGLNativeWindowType nativeWindow) {
DestroyWindow(nativeWindow);
UnregisterClass(kWindowClassName, GetModuleHandle(NULL));
}
EGLImageKHR GTFCreateEGLImage(int width, int height,
GLenum format, GLenum type) {
return (EGLImageKHR)NULL;
}
void GTFDestroyEGLImage(EGLImageKHR image) {
}
} // extern "C"
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