diff options
Diffstat (limited to 'progs/wgl/sharedtex_mt/sharedtex_mt.c')
-rw-r--r-- | progs/wgl/sharedtex_mt/sharedtex_mt.c | 565 |
1 files changed, 0 insertions, 565 deletions
diff --git a/progs/wgl/sharedtex_mt/sharedtex_mt.c b/progs/wgl/sharedtex_mt/sharedtex_mt.c deleted file mode 100644 index 779e15001d..0000000000 --- a/progs/wgl/sharedtex_mt/sharedtex_mt.c +++ /dev/null @@ -1,565 +0,0 @@ -/* - * Test sharing of display lists and texture objects between GLX contests. - * Brian Paul - * Summer 2000 - * - * - * Copyright (C) 2000 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - * - * Modified 2009 for multithreading by Thomas Hellstrom. - * - * Port to windows by Michal Krol. - */ - - -#include <windows.h> -#include <GL/gl.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#pragma comment(lib, "opengl32.lib") - -struct thread_init_arg { - int id; -}; - -struct window { - CRITICAL_SECTION drawMutex; - HDC hDC; - HWND Win; - HGLRC Context; - float Angle; - int Id; - HGLRC sharedContext; - HANDLE hEventInitialised; -}; - - -#define MAX_WINDOWS 20 -static struct window Windows[MAX_WINDOWS]; -static int NumWindows = 0; -static HANDLE terminate = NULL; -static HGLRC gCtx = NULL; -static HDC gHDC = NULL; -static GLuint Textures[3]; - - - -static void -Error(const char *msg) -{ - fprintf(stderr, "Error - %s\n", msg); - exit(1); -} - -static void -Resize(struct window *h, unsigned int width, unsigned int height); - -static LRESULT CALLBACK -WndProc(HWND hWnd, - UINT uMsg, - WPARAM wParam, - LPARAM lParam ) -{ - switch (uMsg) { - case WM_KEYDOWN: - SetEvent(terminate); - break; - case WM_SIZE: - { - LONG index = GetWindowLong(hWnd, GWL_USERDATA); - - if (index >= 0 && index < MAX_WINDOWS) { - RECT r; - - GetClientRect(hWnd, &r); - Resize(&Windows[index], r.right, r.bottom); - } - } - break; - case WM_CREATE: - { - CREATESTRUCT *pcs = (CREATESTRUCT *) lParam; - - SetWindowLong(hWnd, GWL_USERDATA, (LONG) pcs->lpCreateParams); - } - break; - case WM_DESTROY: - PostQuitMessage(0); - break; - default: - return DefWindowProc(hWnd, uMsg, wParam, lParam); - } - - return 0; -} - -static int -initMainthread(void) -{ - WNDCLASS wc = {0}; - HWND win; - PIXELFORMATDESCRIPTOR pfd = {0}; - int visinfo; - - wc.lpfnWndProc = WndProc; - wc.lpszClassName = "sharedtex_mt.hidden"; - wc.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW; - RegisterClass(&wc); - - win = CreateWindowEx(0, - wc.lpszClassName, - "sharedtex_mt.hidden", - WS_CLIPSIBLINGS | WS_CLIPCHILDREN, - CW_USEDEFAULT, - CW_USEDEFAULT, - CW_USEDEFAULT, - CW_USEDEFAULT, - NULL, - NULL, - wc.hInstance, - (LPVOID) -1); - if (!win) { - Error("Couldn't create window"); - } - - gHDC = GetDC(win); - if (!gHDC) { - Error("Couldn't obtain HDC"); - } - - pfd.cColorBits = 24; - pfd.cDepthBits = 24; - pfd.dwFlags = PFD_DOUBLEBUFFER | PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL; - pfd.iLayerType = PFD_MAIN_PLANE; - pfd.iPixelType = PFD_TYPE_RGBA; - pfd.nSize = sizeof(pfd); - pfd.nVersion = 1; - - visinfo = ChoosePixelFormat(gHDC, &pfd); - if (!visinfo) { - Error("Unable to find RGB, Z, double-buffered visual"); - } - - SetPixelFormat(gHDC, visinfo, &pfd); - gCtx = wglCreateContext(gHDC); - if (!gCtx) { - Error("Couldn't create WGL context"); - } - - return 0; -} - -static struct window * -AddWindow(int xpos, int ypos, HGLRC sCtx) -{ - struct window *win = &Windows[NumWindows]; - WNDCLASS wc = {0}; - int width = 300, height = 300; - - if (NumWindows >= MAX_WINDOWS) - return NULL; - - memset(win, 0, sizeof(*win)); - InitializeCriticalSection(&win->drawMutex); - win->Angle = 0.0; - win->Id = NumWindows++; - - wc.hbrBackground = (HBRUSH) (COLOR_BTNFACE + 1); - wc.hCursor = LoadCursor(NULL, IDC_ARROW); - wc.hIcon = LoadIcon(NULL, IDI_APPLICATION); - wc.lpfnWndProc = WndProc; - wc.lpszClassName = "sharedtex_mt"; - wc.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW; - RegisterClass(&wc); - - win->Win = CreateWindowEx(0, - wc.lpszClassName, - "sharedtex_mt", - WS_SIZEBOX | WS_CLIPSIBLINGS | WS_CLIPCHILDREN, - xpos, - ypos, - width, - height, - NULL, - NULL, - wc.hInstance, - (LPVOID) win->Id); - if (!win->Win) { - Error("Couldn't create window"); - } - - win->sharedContext = sCtx; - - ShowWindow(win->Win, SW_SHOW); - - return win; -} - - -static void -InitGLstuff(void) -{ - glGenTextures(3, Textures); - - /* setup first texture object */ - { - GLubyte image[16][16][4]; - GLint i, j; - glBindTexture(GL_TEXTURE_2D, Textures[0]); - - /* red/white checkerboard */ - for (i = 0; i < 16; i++) { - for (j = 0; j < 16; j++) { - if ((i ^ j) & 1) { - image[i][j][0] = 255; - image[i][j][1] = 255; - image[i][j][2] = 255; - image[i][j][3] = 255; - } - else { - image[i][j][0] = 255; - image[i][j][1] = 0; - image[i][j][2] = 0; - image[i][j][3] = 255; - } - } - } - - glPixelStorei(GL_UNPACK_ALIGNMENT, 1); - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, - GL_UNSIGNED_BYTE, image); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - } - - /* setup second texture object */ - { - GLubyte image[8][8][3]; - GLint i, j; - glBindTexture(GL_TEXTURE_2D, Textures[1]); - - /* green/yellow checkerboard */ - for (i = 0; i < 8; i++) { - for (j = 0; j < 8; j++) { - if ((i ^ j) & 1) { - image[i][j][0] = 0; - image[i][j][1] = 255; - image[i][j][2] = 0; - } - else { - image[i][j][0] = 255; - image[i][j][1] = 255; - image[i][j][2] = 0; - } - } - } - - glPixelStorei(GL_UNPACK_ALIGNMENT, 2); - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 8, 8, 0, GL_RGB, - GL_UNSIGNED_BYTE, image); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - } - - /* setup second texture object */ - { - GLubyte image[4][4][3]; - GLint i, j; - glBindTexture(GL_TEXTURE_2D, Textures[2]); - - /* blue/gray checkerboard */ - for (i = 0; i < 4; i++) { - for (j = 0; j < 4; j++) { - if ((i ^ j) & 1) { - image[i][j][0] = 0; - image[i][j][1] = 0; - image[i][j][2] = 255; - } - else { - image[i][j][0] = 200; - image[i][j][1] = 200; - image[i][j][2] = 200; - } - } - } - - glPixelStorei(GL_UNPACK_ALIGNMENT, 2); - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 4, 4, 0, GL_RGB, - GL_UNSIGNED_BYTE, image); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - } - - /* Now make the cube object display list */ - - printf("GL_RENDERER: %s\n", (char *) glGetString(GL_RENDERER)); - printf("GL_VERSION: %s\n", (char *) glGetString(GL_VERSION)); - printf("GL_VENDOR: %s\n", (char *) glGetString(GL_VENDOR)); -} - -static void -Redraw(struct window *h) -{ - EnterCriticalSection(&h->drawMutex); - if (!wglMakeCurrent(h->hDC, h->Context)) { - LeaveCriticalSection(&h->drawMutex); - Error("wglMakeCurrent failed in Redraw"); - return; - } - - h->Angle += 1.0; - - glShadeModel(GL_FLAT); - glClearColor(0.25, 0.25, 0.25, 1.0); - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - - glEnable(GL_TEXTURE_2D); - glEnable(GL_DEPTH_TEST); - glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); - - glColor3f(1, 1, 1); - - glPushMatrix(); - if (h->Id == 0) - glRotatef(h->Angle, 0, 1, -1); - else if (h->Id == 1) - glRotatef(-(h->Angle), 0, 1, -1); - else if (h->Id == 2) - glRotatef(h->Angle, 0, 1, 1); - else if (h->Id == 3) - glRotatef(-(h->Angle), 0, 1, 1); - glBindTexture(GL_TEXTURE_2D, Textures[0]); - glBegin(GL_POLYGON); - glTexCoord2f(0, 0); glVertex3f(-1, -1, -1); - glTexCoord2f(1, 0); glVertex3f(-1, 1, -1); - glTexCoord2f(1, 1); glVertex3f(-1, 1, 1); - glTexCoord2f(0, 1); glVertex3f(-1, -1, 1); - glEnd(); - glBegin(GL_POLYGON); - glTexCoord2f(0, 0); glVertex3f(1, -1, -1); - glTexCoord2f(1, 0); glVertex3f(1, 1, -1); - glTexCoord2f(1, 1); glVertex3f(1, 1, 1); - glTexCoord2f(0, 1); glVertex3f(1, -1, 1); - glEnd(); - - glBindTexture(GL_TEXTURE_2D, Textures[1]); - glBegin(GL_POLYGON); - glTexCoord2f(0, 0); glVertex3f(-1, -1, -1); - glTexCoord2f(1, 0); glVertex3f( 1, -1, -1); - glTexCoord2f(1, 1); glVertex3f( 1, -1, 1); - glTexCoord2f(0, 1); glVertex3f(-1, -1, 1); - glEnd(); - glBegin(GL_POLYGON); - glTexCoord2f(0, 0); glVertex3f(-1, 1, -1); - glTexCoord2f(1, 0); glVertex3f( 1, 1, -1); - glTexCoord2f(1, 1); glVertex3f( 1, 1, 1); - glTexCoord2f(0, 1); glVertex3f(-1, 1, 1); - glEnd(); - - glBindTexture(GL_TEXTURE_2D, Textures[2]); - glBegin(GL_POLYGON); - glTexCoord2f(0, 0); glVertex3f(-1, -1, -1); - glTexCoord2f(1, 0); glVertex3f( 1, -1, -1); - glTexCoord2f(1, 1); glVertex3f( 1, 1, -1); - glTexCoord2f(0, 1); glVertex3f(-1, 1, -1); - glEnd(); - glBegin(GL_POLYGON); - glTexCoord2f(0, 0); glVertex3f(-1, -1, 1); - glTexCoord2f(1, 0); glVertex3f( 1, -1, 1); - glTexCoord2f(1, 1); glVertex3f( 1, 1, 1); - glTexCoord2f(0, 1); glVertex3f(-1, 1, 1); - glEnd(); - - glPopMatrix(); - - SwapBuffers(h->hDC); - - if (!wglMakeCurrent(NULL, NULL)) { - Error("wglMakeCurrent failed in Redraw"); - } - LeaveCriticalSection(&h->drawMutex); -} - -static DWORD WINAPI -threadRunner (void *arg) -{ - struct thread_init_arg *tia = (struct thread_init_arg *) arg; - struct window *win; - PIXELFORMATDESCRIPTOR pfd = {0}; - int visinfo; - - win = &Windows[tia->id]; - - win->hDC = GetDC(win->Win); - if (!win->hDC) { - Error("Couldn't obtain HDC"); - } - - /* Wait for the previous thread */ - if(tia->id > 0) - WaitForSingleObject(Windows[tia->id - 1].hEventInitialised, INFINITE); - - pfd.cColorBits = 24; - pfd.cDepthBits = 24; - pfd.dwFlags = PFD_DOUBLEBUFFER | PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL; - pfd.iLayerType = PFD_MAIN_PLANE; - pfd.iPixelType = PFD_TYPE_RGBA; - pfd.nSize = sizeof(pfd); - pfd.nVersion = 1; - - visinfo = ChoosePixelFormat(win->hDC, &pfd); - if (!visinfo) { - Error("Unable to find RGB, Z, double-buffered visual"); - } - - SetPixelFormat(win->hDC, visinfo, &pfd); - win->Context = wglCreateContext(win->hDC); - if (!win->Context) { - Error("Couldn't create WGL context"); - } - - if (win->sharedContext) { - if(!wglShareLists(win->sharedContext, win->Context)) - Error("Couldn't share WGL context lists"); - } - - SetEvent(win->hEventInitialised); - - /* Wait for all threads to initialize otherwise wglShareLists will fail */ - if(tia->id < NumWindows - 1) - WaitForSingleObject(Windows[NumWindows - 1].hEventInitialised, INFINITE); - - SendMessage(win->Win, WM_SIZE, 0, 0); - - while (1) { - MSG msg; - - /* wait 1 ms for signal either to exit or process messages */ - switch (MsgWaitForMultipleObjects(1, &terminate, FALSE, 1, QS_ALLINPUT)) { - case WAIT_OBJECT_0: - SendMessage(win->Win, WM_CLOSE, 0, 0); - break; - case WAIT_OBJECT_0 + 1: - break; - } - - while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) { - if (msg.message == WM_QUIT) { - return 0; - } - TranslateMessage(&msg); - DispatchMessage(&msg); - } - - Redraw(win); - } - - return 0; -} - -static void -Resize(struct window *h, unsigned int width, unsigned int height) -{ - if (!h->Context) - return; - - EnterCriticalSection(&h->drawMutex); - - if (!wglMakeCurrent(h->hDC, h->Context)) { - LeaveCriticalSection(&h->drawMutex); - Error("wglMakeCurrent failed in Resize()"); - return; - } - - glViewport(0, 0, width, height); - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - glFrustum(-1, 1, -1, 1, 2, 10); - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - glTranslatef(0, 0, -4.5); - if (!wglMakeCurrent(NULL, NULL)) { - Error("wglMakeCurrent failed in Resize()"); - } - LeaveCriticalSection(&h->drawMutex); -} - -int -main(int argc, char *argv[]) -{ - struct thread_init_arg tia[MAX_WINDOWS]; - struct window *h[MAX_WINDOWS]; - HANDLE threads[MAX_WINDOWS]; - int i; - - terminate = CreateEvent(NULL, TRUE, FALSE, NULL); - - if (initMainthread()) - return -1; - - /* four windows and contexts sharing display lists and texture objects */ - h[0] = AddWindow( 10, 10, gCtx); - h[1] = AddWindow(330, 10, gCtx); - h[2] = AddWindow( 10, 350, gCtx); - h[3] = AddWindow(330, 350, gCtx); - - for (i = 0; i < NumWindows; i++) { - Windows[i].hEventInitialised = CreateEvent(NULL, TRUE, FALSE, NULL); - } - - for (i = 0; i < NumWindows; i++) { - DWORD id; - - tia[i].id = i; - threads[i] = CreateThread(NULL, 0, threadRunner, &tia[i], 0, &id); - - WaitForSingleObject(Windows[i].hEventInitialised, INFINITE); - } - - if (!wglMakeCurrent(gHDC, gCtx)) { - Error("wglMakeCurrent failed for init thread."); - return -1; - } - - InitGLstuff(); - - while (1) { - MSG msg; - - /* wait 1 ms for signal either to exit or process messages */ - switch (MsgWaitForMultipleObjects(NumWindows, threads, TRUE, 1, QS_ALLINPUT)) { - case WAIT_OBJECT_0: - return 0; - } - - while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) { - if (msg.message == WM_QUIT) { - return 0; - } - TranslateMessage(&msg); - DispatchMessage(&msg); - } - } - - return 0; -} |