2005-02-21 09:46:47 -05:00
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/*
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* Copyright (c) 2002-2004 LWJGL Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'LWJGL' nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* $Id$
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*
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* Base Win32 display
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*
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* @author cix_foo <cix_foo@users.sourceforge.net>
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* @version $Revision$
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*/
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#include <malloc.h>
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#include "common_tools.h"
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#include "extgl.h"
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#include "extgl_wgl.h"
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#include "context.h"
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extern HINSTANCE dll_handle; // Handle to the LWJGL dll
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#define _CONTEXT_PRIVATE_CLASS_NAME "__lwjgl_context_class_name"
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/*
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* Register the LWJGL window class.
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* Returns true for success, or false for failure
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*/
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bool registerWindow(WNDPROC win_proc, LPCTSTR class_name)
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{
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WNDCLASS windowClass;
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windowClass.style = CS_OWNDC;
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windowClass.lpfnWndProc = win_proc;
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windowClass.cbClsExtra = 0;
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windowClass.cbWndExtra = 0;
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windowClass.hInstance = dll_handle;
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windowClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
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windowClass.hCursor = LoadCursor(NULL, IDC_ARROW);
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windowClass.hbrBackground = NULL;
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windowClass.lpszMenuName = NULL;
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windowClass.lpszClassName = class_name;
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if (RegisterClass(&windowClass) == 0) {
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printfDebug("Failed to register window class\n");
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return false;
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}
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return true;
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}
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static LRESULT CALLBACK dummyWindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) {
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return DefWindowProc(hwnd, msg, wParam, lParam);
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}
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bool applyPixelFormat(HDC hdc, int iPixelFormat) {
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PIXELFORMATDESCRIPTOR desc;
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if (DescribePixelFormat(hdc, iPixelFormat, sizeof(PIXELFORMATDESCRIPTOR), &desc) == 0) {
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return false;
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}
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// make that the pixel format of the device context
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if (SetPixelFormat(hdc, iPixelFormat, &desc) == FALSE) {
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return false;
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}
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return true;
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}
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/*
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* Close the window
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*/
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void closeWindow(HWND *hwnd, HDC *hdc)
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{
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// Release device context
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if (*hdc != NULL && *hwnd != NULL) {
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ReleaseDC(*hwnd, *hdc);
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*hdc = NULL;
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}
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// Close the window
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if (*hwnd != NULL) {
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ShowWindow(*hwnd, SW_HIDE);
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DestroyWindow(*hwnd);
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*hwnd = NULL;
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}
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}
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/*
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* Create a window with the specified title, position, size, and
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* fullscreen attribute. The window will have DirectInput associated
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* with it.
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*
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* Returns true for success, or false for failure
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*/
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HWND createWindow(LPCTSTR window_class_name, int x, int y, int width, int height, bool fullscreen, bool undecorated)
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{
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RECT clientSize;
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int exstyle, windowflags;
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HWND new_hwnd;
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if (fullscreen) {
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exstyle = WS_EX_APPWINDOW | WS_EX_TOPMOST;
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windowflags = WS_POPUP;
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} else if (undecorated) {
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exstyle = WS_EX_APPWINDOW;
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windowflags = WS_POPUP;
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} else {
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exstyle = WS_EX_APPWINDOW;
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windowflags = WS_OVERLAPPED | WS_BORDER | WS_CAPTION | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_MINIMIZEBOX | WS_SYSMENU;
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}
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// If we're not a fullscreen window, adjust the height to account for the
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// height of the title bar (unless undecorated)
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clientSize.bottom = height;
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clientSize.left = 0;
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clientSize.right = width;
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clientSize.top = 0;
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AdjustWindowRectEx(
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&clientSize, // client-rectangle structure
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windowflags, // window styles
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FALSE, // menu-present option
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exstyle // extended window style
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);
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// Create the window now, using that class:
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new_hwnd = CreateWindowEx (
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exstyle,
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window_class_name,
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"",
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windowflags,
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x, y, clientSize.right - clientSize.left, clientSize.bottom - clientSize.top,
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NULL,
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NULL,
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dll_handle,
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NULL);
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return new_hwnd;
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}
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static int findPixelFormatARBFromBPP(JNIEnv *env, HDC hdc, jobject pixel_format, jobject pixelFormatCaps, int bpp, bool window, bool pbuffer, bool double_buffer) {
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jclass cls_pixel_format = (*env)->GetObjectClass(env, pixel_format);
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int alpha = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "alpha", "I"));
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int depth = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "depth", "I"));
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int stencil = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "stencil", "I"));
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int samples = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "samples", "I"));
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int num_aux_buffers = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "num_aux_buffers", "I"));
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int accum_bpp = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "accum_bpp", "I"));
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int accum_alpha = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "accum_alpha", "I"));
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jboolean stereo = (*env)->GetBooleanField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "stereo", "Z"));
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int iPixelFormat;
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unsigned int num_formats_returned;
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attrib_list_t attrib_list;
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GLuint *pixelFormatCaps_ptr;
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jlong pixelFormatCapsSize;
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BOOL result;
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jlong i;
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initAttribList(&attrib_list);
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if (window) {
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putAttrib(&attrib_list, WGL_DRAW_TO_WINDOW_ARB); putAttrib(&attrib_list, TRUE);
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}
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if (pbuffer) {
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putAttrib(&attrib_list, WGL_DRAW_TO_PBUFFER_ARB); putAttrib(&attrib_list, TRUE);
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}
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if (!getBooleanProperty(env, "org.lwjgl.opengl.Display.allowSoftwareOpenGL"))
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putAttrib(&attrib_list, WGL_ACCELERATION_ARB); putAttrib(&attrib_list, WGL_FULL_ACCELERATION_ARB);
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putAttrib(&attrib_list, WGL_PIXEL_TYPE_ARB); putAttrib(&attrib_list, WGL_TYPE_RGBA_ARB);
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putAttrib(&attrib_list, WGL_DOUBLE_BUFFER_ARB); putAttrib(&attrib_list, double_buffer ? TRUE : FALSE);
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putAttrib(&attrib_list, WGL_SUPPORT_OPENGL_ARB); putAttrib(&attrib_list, TRUE);
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putAttrib(&attrib_list, WGL_COLOR_BITS_ARB); putAttrib(&attrib_list, bpp);
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putAttrib(&attrib_list, WGL_ALPHA_BITS_ARB); putAttrib(&attrib_list, alpha);
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putAttrib(&attrib_list, WGL_DEPTH_BITS_ARB); putAttrib(&attrib_list, depth);
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putAttrib(&attrib_list, WGL_STENCIL_BITS_ARB); putAttrib(&attrib_list, stencil);
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if (samples > 0 && extension_flags.WGL_ARB_multisample) {
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putAttrib(&attrib_list, WGL_SAMPLE_BUFFERS_ARB); putAttrib(&attrib_list, 1);
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putAttrib(&attrib_list, WGL_SAMPLES_ARB); putAttrib(&attrib_list, samples);
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}
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putAttrib(&attrib_list, WGL_ACCUM_BITS_ARB); putAttrib(&attrib_list, accum_bpp);
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putAttrib(&attrib_list, WGL_ACCUM_ALPHA_BITS_ARB); putAttrib(&attrib_list, accum_alpha);
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putAttrib(&attrib_list, WGL_STEREO_ARB); putAttrib(&attrib_list, stereo ? TRUE : FALSE);
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putAttrib(&attrib_list, WGL_AUX_BUFFERS_ARB); putAttrib(&attrib_list, num_aux_buffers);
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if ( pixelFormatCaps != NULL ) {
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if ( !extension_flags.WGL_ARB_render_texture ) {
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return -1;
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}
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pixelFormatCaps_ptr = (GLuint *)(*env)->GetDirectBufferAddress(env, pixelFormatCaps);
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pixelFormatCapsSize = (*env)->GetDirectBufferCapacity(env, pixelFormatCaps);
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for (i = 0; i < pixelFormatCapsSize; i++)
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putAttrib(&attrib_list, pixelFormatCaps_ptr[i]);
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}
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putAttrib(&attrib_list, 0); putAttrib(&attrib_list, 0);
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result = wglChoosePixelFormatARB(hdc, attrib_list.attribs, NULL, 1, &iPixelFormat, &num_formats_returned);
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if (result == FALSE || num_formats_returned < 1) {
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return -1;
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}
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return iPixelFormat;
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}
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static int findPixelFormatARB(JNIEnv *env, HDC hdc, jobject pixel_format, jobject pixelFormatCaps, bool use_hdc_bpp, bool window, bool pbuffer, bool double_buffer) {
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int bpp;
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int iPixelFormat;
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jclass cls_pixel_format = (*env)->GetObjectClass(env, pixel_format);
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if (use_hdc_bpp) {
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bpp = GetDeviceCaps(hdc, BITSPIXEL);
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iPixelFormat = findPixelFormatARBFromBPP(env, hdc, pixel_format, pixelFormatCaps, bpp, window, pbuffer, double_buffer);
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if (iPixelFormat == -1)
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bpp = 16;
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else
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return iPixelFormat;
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} else
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bpp = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "bpp", "I"));
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return findPixelFormatARBFromBPP(env, hdc, pixel_format, pixelFormatCaps, bpp, window, pbuffer, double_buffer);
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}
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/*
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* Find an appropriate pixel format
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*/
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static int findPixelFormatFromBPP(JNIEnv *env, HDC hdc, jobject pixel_format, int bpp, bool double_buffer)
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{
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jclass cls_pixel_format = (*env)->GetObjectClass(env, pixel_format);
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int alpha = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "alpha", "I"));
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int depth = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "depth", "I"));
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int stencil = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "stencil", "I"));
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int samples = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "samples", "I"));
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int num_aux_buffers = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "num_aux_buffers", "I"));
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int accum_bpp = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "accum_bpp", "I"));
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int accum_alpha = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "accum_alpha", "I"));
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jboolean stereo = (*env)->GetBooleanField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "stereo", "Z"));
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unsigned int flags = PFD_DRAW_TO_WINDOW | // support window
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PFD_SUPPORT_OPENGL |
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(double_buffer ? PFD_DOUBLEBUFFER : 0) |
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(stereo ? PFD_STEREO : 0);
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PIXELFORMATDESCRIPTOR desc;
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int iPixelFormat;
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PIXELFORMATDESCRIPTOR pfd = {
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sizeof(PIXELFORMATDESCRIPTOR), // size of this pfd
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1, // version number
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flags, // RGBA type
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PFD_TYPE_RGBA,
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(BYTE)bpp,
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0, 0, 0, 0, 0, 0, // color bits ignored
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(BYTE)alpha,
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0, // shift bit ignored
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accum_bpp + accum_alpha, // no accumulation buffer
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0, 0, 0, 0, // accum bits ignored
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(BYTE)depth,
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(BYTE)stencil,
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num_aux_buffers,
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PFD_MAIN_PLANE, // main layer
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0, // reserved
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0, 0, 0 // layer masks ignored
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};
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// get the best available match of pixel format for the device context
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iPixelFormat = ChoosePixelFormat(hdc, &pfd);
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if (iPixelFormat == 0) {
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printfDebugJava(env, "Failed to choose pixel format");
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return -1;
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}
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if (DescribePixelFormat(hdc, iPixelFormat, sizeof(PIXELFORMATDESCRIPTOR), &desc) == 0) {
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printfDebugJava(env, "Could not describe pixel format");
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return -1;
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}
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if (desc.cColorBits < bpp) {
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printfDebugJava(env, "Insufficient color precision");
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return -1;
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}
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if (desc.cAlphaBits < alpha) {
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printfDebugJava(env, "Insufficient alpha precision");
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return -1;
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}
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if (desc.cStencilBits < stencil) {
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printfDebugJava(env, "Insufficient stencil precision");
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return -1;
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}
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if (desc.cDepthBits < depth) {
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printfDebugJava(env, "Insufficient depth buffer precision");
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return -1;
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}
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if ((desc.dwFlags & PFD_GENERIC_FORMAT) != 0 || (desc.dwFlags & PFD_GENERIC_ACCELERATED) != 0) {
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jboolean allowSoftwareOpenGL = getBooleanProperty(env, "org.lwjgl.opengl.Display.allowSoftwareOpenGL");
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// secondary check for software override
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if(!allowSoftwareOpenGL) {
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printfDebugJava(env, "Pixel format not accelerated");
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return -1;
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}
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((desc.dwFlags & flags) != flags) {
|
|
|
|
printfDebugJava(env, "Capabilities not supported");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
return iPixelFormat;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int findPixelFormatDefault(JNIEnv *env, HDC hdc, jobject pixel_format, bool use_hdc_bpp, bool double_buffer) {
|
|
|
|
int bpp;
|
|
|
|
int iPixelFormat;
|
|
|
|
jclass cls_pixel_format = (*env)->GetObjectClass(env, pixel_format);
|
|
|
|
if (use_hdc_bpp) {
|
|
|
|
bpp = GetDeviceCaps(hdc, BITSPIXEL);
|
|
|
|
iPixelFormat = findPixelFormatFromBPP(env, hdc, pixel_format, bpp, double_buffer);
|
|
|
|
if (iPixelFormat == -1)
|
|
|
|
bpp = 16;
|
|
|
|
else
|
|
|
|
return iPixelFormat;
|
|
|
|
} else
|
|
|
|
bpp = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "bpp", "I"));
|
|
|
|
return findPixelFormatFromBPP(env, hdc, pixel_format, bpp, double_buffer);
|
|
|
|
}
|
|
|
|
|
|
|
|
int findPixelFormatOnDC(JNIEnv *env, HDC hdc, jobject pixel_format, jobject pixelFormatCaps, bool use_hdc_bpp, bool window, bool pbuffer, bool double_buffer) {
|
|
|
|
HGLRC dummy_hglrc;
|
|
|
|
HDC saved_current_hdc;
|
|
|
|
HGLRC saved_current_hglrc;
|
|
|
|
int pixel_format_id;
|
|
|
|
jclass cls_pixel_format = (*env)->GetObjectClass(env, pixel_format);
|
|
|
|
int samples = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "samples", "I"));
|
|
|
|
bool use_arb_selection = samples > 0 || pbuffer || pixelFormatCaps != NULL;
|
|
|
|
pixel_format_id = findPixelFormatDefault(env, hdc, pixel_format, use_hdc_bpp, double_buffer);
|
|
|
|
if (use_arb_selection) {
|
|
|
|
if (!applyPixelFormat(hdc, pixel_format_id)) {
|
|
|
|
throwException(env, "Could not apply pixel format to window");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
dummy_hglrc = wglCreateContext(hdc);
|
|
|
|
if (dummy_hglrc == NULL) {
|
|
|
|
throwException(env, "Failed to create OpenGL rendering context");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
// Save the current HDC and HGLRC to avoid disruption
|
|
|
|
saved_current_hdc = wglGetCurrentDC();
|
|
|
|
saved_current_hglrc = wglGetCurrentContext();
|
|
|
|
if (!wglMakeCurrent(hdc, dummy_hglrc)) {
|
|
|
|
wglDeleteContext(dummy_hglrc);
|
|
|
|
throwException(env, "Could not bind context to dummy window");
|
|
|
|
return -1;
|
|
|
|
}
|
2005-02-23 10:19:21 -05:00
|
|
|
extgl_InitWGL();
|
2005-02-21 09:46:47 -05:00
|
|
|
|
|
|
|
if (!extension_flags.WGL_ARB_pixel_format) {
|
|
|
|
throwException(env, "No support for WGL_ARB_pixel_format");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
pixel_format_id = findPixelFormatARB(env, hdc, pixel_format, pixelFormatCaps, use_hdc_bpp, window, pbuffer, double_buffer);
|
|
|
|
wglMakeCurrent(saved_current_hdc, saved_current_hglrc);
|
|
|
|
wglDeleteContext(dummy_hglrc);
|
|
|
|
}
|
|
|
|
if (pixel_format_id == -1) {
|
|
|
|
throwException(env, "Could not find a valid pixel format");
|
|
|
|
}
|
|
|
|
return pixel_format_id;
|
|
|
|
}
|
|
|
|
|
|
|
|
static bool registerDummyWindow() {
|
|
|
|
static bool window_registered = false;
|
|
|
|
if (!window_registered) {
|
|
|
|
if (!registerWindow(dummyWindowProc, _CONTEXT_PRIVATE_CLASS_NAME)) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
window_registered = true;
|
|
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
HWND createDummyWindow(int origin_x, int origin_y) {
|
|
|
|
if (!registerDummyWindow())
|
|
|
|
return NULL;
|
|
|
|
return createWindow(_CONTEXT_PRIVATE_CLASS_NAME, origin_x, origin_y, 1, 1, false, false);
|
|
|
|
}
|
|
|
|
|
|
|
|
int findPixelFormat(JNIEnv *env, int origin_x, int origin_y, jobject pixel_format, jobject pixelFormatCaps, bool use_hdc_bpp, bool window, bool pbuffer, bool double_buffer) {
|
|
|
|
HWND dummy_hwnd;
|
|
|
|
HDC dummy_hdc;
|
|
|
|
int pixel_format_id;
|
|
|
|
dummy_hwnd = createDummyWindow(origin_x, origin_y);
|
|
|
|
if (dummy_hwnd == NULL) {
|
|
|
|
throwException(env, "Failed to create the dummy window.");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
dummy_hdc = GetDC(dummy_hwnd);
|
|
|
|
pixel_format_id = findPixelFormatOnDC(env, dummy_hdc, pixel_format, pixelFormatCaps, use_hdc_bpp, window, pbuffer, double_buffer);
|
|
|
|
closeWindow(&dummy_hwnd, &dummy_hdc);
|
|
|
|
return pixel_format_id;
|
|
|
|
}
|