diff options
Diffstat (limited to 'progs/wgl')
| -rw-r--r-- | progs/wgl/SConscript | 25 | ||||
| -rw-r--r-- | progs/wgl/sharedtex_mt/sharedtex_mt.c | 565 | ||||
| -rw-r--r-- | progs/wgl/wglinfo.c | 736 | ||||
| -rw-r--r-- | progs/wgl/wglthreads/wglthreads.c | 636 |
4 files changed, 1962 insertions, 0 deletions
diff --git a/progs/wgl/SConscript b/progs/wgl/SConscript new file mode 100644 index 0000000000..31f61676de --- /dev/null +++ b/progs/wgl/SConscript @@ -0,0 +1,25 @@ +Import('*') + +if env['platform'] != 'windows': + Return() + +env = env.Clone() + +env.Append(LIBS = [ + 'kernel32', + 'user32', + 'gdi32', +]) + +progs = [ + 'sharedtex_mt', + 'wglthreads', +] + +for prog in progs: + env.Program( + target = prog, + source = prog + '/' + prog + '.c', + ) + +env.Program('wglinfo', ['wglinfo.c']) diff --git a/progs/wgl/sharedtex_mt/sharedtex_mt.c b/progs/wgl/sharedtex_mt/sharedtex_mt.c new file mode 100644 index 0000000000..779e15001d --- /dev/null +++ b/progs/wgl/sharedtex_mt/sharedtex_mt.c @@ -0,0 +1,565 @@ +/* + * 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; +} diff --git a/progs/wgl/wglinfo.c b/progs/wgl/wglinfo.c new file mode 100644 index 0000000000..864372c2f9 --- /dev/null +++ b/progs/wgl/wglinfo.c @@ -0,0 +1,736 @@ +/* + * Copyright (C) 2009 VMware, Inc. + * Copyright (C) 1999-2006 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 + * THE AUTHORS 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. + */ + + +/* + * This program is a work-alike of the GLX glxinfo program. + * Command line options: + * -t print wide table + * -v print verbose information + * -b only print ID of "best" visual on screen 0 + * -l print interesting OpenGL limits (added 5 Sep 2002) + */ + +#include <windows.h> + +#include <GL/gl.h> +#include <GL/glext.h> +#include <GL/wglext.h> +#include <stdio.h> +#include <string.h> +#include <stdlib.h> + + +typedef enum +{ + Normal, + Wide, + Verbose +} InfoMode; + + +/* + * Print a list of extensions, with word-wrapping. + */ +static void +print_extension_list(const char *ext) +{ + const char *indentString = " "; + const int indent = 4; + const int max = 79; + int width, i, j; + + if (!ext || !ext[0]) + return; + + width = indent; + printf(indentString); + i = j = 0; + while (1) { + if (ext[j] == ' ' || ext[j] == 0) { + /* found end of an extension name */ + const int len = j - i; + if (width + len > max) { + /* start a new line */ + printf("\n"); + width = indent; + printf(indentString); + } + /* print the extension name between ext[i] and ext[j] */ + while (i < j) { + printf("%c", ext[i]); + i++; + } + /* either we're all done, or we'll continue with next extension */ + width += len + 1; + if (ext[j] == 0) { + break; + } + else { + i++; + j++; + if (ext[j] == 0) + break; + printf(", "); + width += 2; + } + } + j++; + } + printf("\n"); +} + + +/** + * Print interesting limits for vertex/fragment programs. + */ +static void +print_program_limits(GLenum target) +{ +#if defined(GL_ARB_vertex_program) || defined(GL_ARB_fragment_program) + struct token_name { + GLenum token; + const char *name; + }; + static const struct token_name limits[] = { + { GL_MAX_PROGRAM_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_INSTRUCTIONS_ARB" }, + { GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB" }, + { GL_MAX_PROGRAM_TEMPORARIES_ARB, "GL_MAX_PROGRAM_TEMPORARIES_ARB" }, + { GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB, "GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB" }, + { GL_MAX_PROGRAM_PARAMETERS_ARB, "GL_MAX_PROGRAM_PARAMETERS_ARB" }, + { GL_MAX_PROGRAM_NATIVE_PARAMETERS_ARB, "GL_MAX_PROGRAM_NATIVE_PARAMETERS_ARB" }, + { GL_MAX_PROGRAM_ATTRIBS_ARB, "GL_MAX_PROGRAM_ATTRIBS_ARB" }, + { GL_MAX_PROGRAM_NATIVE_ATTRIBS_ARB, "GL_MAX_PROGRAM_NATIVE_ATTRIBS_ARB" }, + { GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB, "GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB" }, + { GL_MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB, "GL_MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB" }, + { GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB, "GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB" }, + { GL_MAX_PROGRAM_ENV_PARAMETERS_ARB, "GL_MAX_PROGRAM_ENV_PARAMETERS_ARB" }, + { GL_MAX_PROGRAM_ALU_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_ALU_INSTRUCTIONS_ARB" }, + { GL_MAX_PROGRAM_TEX_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_TEX_INSTRUCTIONS_ARB" }, + { GL_MAX_PROGRAM_TEX_INDIRECTIONS_ARB, "GL_MAX_PROGRAM_TEX_INDIRECTIONS_ARB" }, + { GL_MAX_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB" }, + { GL_MAX_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB" }, + { GL_MAX_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB, "GL_MAX_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB" }, + { (GLenum) 0, NULL } + }; + PFNGLGETPROGRAMIVARBPROC GetProgramivARB_func = (PFNGLGETPROGRAMIVARBPROC) + wglGetProcAddress("glGetProgramivARB"); + GLint max[1]; + int i; + + if (target == GL_VERTEX_PROGRAM_ARB) { + printf(" GL_VERTEX_PROGRAM_ARB:\n"); + } + else if (target == GL_FRAGMENT_PROGRAM_ARB) { + printf(" GL_FRAGMENT_PROGRAM_ARB:\n"); + } + else { + return; /* something's wrong */ + } + + for (i = 0; limits[i].token; i++) { + GetProgramivARB_func(target, limits[i].token, max); + if (glGetError() == GL_NO_ERROR) { + printf(" %s = %d\n", limits[i].name, max[0]); + } + } +#endif /* GL_ARB_vertex_program / GL_ARB_fragment_program */ +} + + +/** + * Print interesting limits for vertex/fragment shaders. + */ +static void +print_shader_limits(GLenum target) +{ + struct token_name { + GLenum token; + const char *name; + }; +#if defined(GL_ARB_vertex_shader) + static const struct token_name vertex_limits[] = { + { GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB, "GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB" }, + { GL_MAX_VARYING_FLOATS_ARB, "GL_MAX_VARYING_FLOATS_ARB" }, + { GL_MAX_VERTEX_ATTRIBS_ARB, "GL_MAX_VERTEX_ATTRIBS_ARB" }, + { GL_MAX_TEXTURE_IMAGE_UNITS_ARB, "GL_MAX_TEXTURE_IMAGE_UNITS_ARB" }, + { GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB, "GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB" }, + { GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB, "GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB" }, + { GL_MAX_TEXTURE_COORDS_ARB, "GL_MAX_TEXTURE_COORDS_ARB" }, + { (GLenum) 0, NULL } + }; +#endif +#if defined(GL_ARB_fragment_shader) + static const struct token_name fragment_limits[] = { + { GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB, "GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB" }, + { GL_MAX_TEXTURE_COORDS_ARB, "GL_MAX_TEXTURE_COORDS_ARB" }, + { GL_MAX_TEXTURE_IMAGE_UNITS_ARB, "GL_MAX_TEXTURE_IMAGE_UNITS_ARB" }, + { (GLenum) 0, NULL } + }; +#endif + GLint max[1]; + int i; + +#if defined(GL_ARB_vertex_shader) + if (target == GL_VERTEX_SHADER_ARB) { + printf(" GL_VERTEX_SHADER_ARB:\n"); + for (i = 0; vertex_limits[i].token; i++) { + glGetIntegerv(vertex_limits[i].token, max); + if (glGetError() == GL_NO_ERROR) { + printf(" %s = %d\n", vertex_limits[i].name, max[0]); + } + } + } +#endif +#if defined(GL_ARB_fragment_shader) + if (target == GL_FRAGMENT_SHADER_ARB) { + printf(" GL_FRAGMENT_SHADER_ARB:\n"); + for (i = 0; fragment_limits[i].token; i++) { + glGetIntegerv(fragment_limits[i].token, max); + if (glGetError() == GL_NO_ERROR) { + printf(" %s = %d\n", fragment_limits[i].name, max[0]); + } + } + } +#endif +} + + +/** + * Print interesting OpenGL implementation limits. + */ +static void +print_limits(const char *extensions) +{ + struct token_name { + GLuint count; + GLenum token; + const char *name; + }; + static const struct token_name limits[] = { + { 1, GL_MAX_ATTRIB_STACK_DEPTH, "GL_MAX_ATTRIB_STACK_DEPTH" }, + { 1, GL_MAX_CLIENT_ATTRIB_STACK_DEPTH, "GL_MAX_CLIENT_ATTRIB_STACK_DEPTH" }, + { 1, GL_MAX_CLIP_PLANES, "GL_MAX_CLIP_PLANES" }, + { 1, GL_MAX_COLOR_MATRIX_STACK_DEPTH, "GL_MAX_COLOR_MATRIX_STACK_DEPTH" }, + { 1, GL_MAX_ELEMENTS_VERTICES, "GL_MAX_ELEMENTS_VERTICES" }, + { 1, GL_MAX_ELEMENTS_INDICES, "GL_MAX_ELEMENTS_INDICES" }, + { 1, GL_MAX_EVAL_ORDER, "GL_MAX_EVAL_ORDER" }, + { 1, GL_MAX_LIGHTS, "GL_MAX_LIGHTS" }, + { 1, GL_MAX_LIST_NESTING, "GL_MAX_LIST_NESTING" }, + { 1, GL_MAX_MODELVIEW_STACK_DEPTH, "GL_MAX_MODELVIEW_STACK_DEPTH" }, + { 1, GL_MAX_NAME_STACK_DEPTH, "GL_MAX_NAME_STACK_DEPTH" }, + { 1, GL_MAX_PIXEL_MAP_TABLE, "GL_MAX_PIXEL_MAP_TABLE" }, + { 1, GL_MAX_PROJECTION_STACK_DEPTH, "GL_MAX_PROJECTION_STACK_DEPTH" }, + { 1, GL_MAX_TEXTURE_STACK_DEPTH, "GL_MAX_TEXTURE_STACK_DEPTH" }, + { 1, GL_MAX_TEXTURE_SIZE, "GL_MAX_TEXTURE_SIZE" }, + { 1, GL_MAX_3D_TEXTURE_SIZE, "GL_MAX_3D_TEXTURE_SIZE" }, + { 2, GL_MAX_VIEWPORT_DIMS, "GL_MAX_VIEWPORT_DIMS" }, + { 2, GL_ALIASED_LINE_WIDTH_RANGE, "GL_ALIASED_LINE_WIDTH_RANGE" }, + { 2, GL_SMOOTH_LINE_WIDTH_RANGE, "GL_SMOOTH_LINE_WIDTH_RANGE" }, + { 2, GL_ALIASED_POINT_SIZE_RANGE, "GL_ALIASED_POINT_SIZE_RANGE" }, + { 2, GL_SMOOTH_POINT_SIZE_RANGE, "GL_SMOOTH_POINT_SIZE_RANGE" }, +#if defined(GL_ARB_texture_cube_map) + { 1, GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, "GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB" }, +#endif +#if defined(GLX_NV_texture_rectangle) + { 1, GL_MAX_RECTANGLE_TEXTURE_SIZE_NV, "GL_MAX_RECTANGLE_TEXTURE_SIZE_NV" }, +#endif +#if defined(GL_ARB_texture_compression) + { 1, GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB, "GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB" }, +#endif +#if defined(GL_ARB_multitexture) + { 1, GL_MAX_TEXTURE_UNITS_ARB, "GL_MAX_TEXTURE_UNITS_ARB" }, +#endif +#if defined(GL_EXT_texture_lod_bias) + { 1, GL_MAX_TEXTURE_LOD_BIAS_EXT, "GL_MAX_TEXTURE_LOD_BIAS_EXT" }, +#endif +#if defined(GL_EXT_texture_filter_anisotropic) + { 1, GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, "GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT" }, +#endif +#if defined(GL_ARB_draw_buffers) + { 1, GL_MAX_DRAW_BUFFERS_ARB, "GL_MAX_DRAW_BUFFERS_ARB" }, +#endif + { 0, (GLenum) 0, NULL } + }; + GLint i, max[2]; + + printf("OpenGL limits:\n"); + for (i = 0; limits[i].count; i++) { + glGetIntegerv(limits[i].token, max); + if (glGetError() == GL_NO_ERROR) { + if (limits[i].count == 1) + printf(" %s = %d\n", limits[i].name, max[0]); + else /* XXX fix if we ever query something with more than 2 values */ + printf(" %s = %d, %d\n", limits[i].name, max[0], max[1]); + } + } + +#if defined(GL_EXT_convolution) + { + PFNGLGETCONVOLUTIONPARAMETERIVEXTPROC glGetConvolutionParameterivEXT_func = + (PFNGLGETCONVOLUTIONPARAMETERIVEXTPROC)wglGetProcAddress("glGetConvolutionParameterivEXT"); + if(glGetConvolutionParameterivEXT_func) { + /* these don't fit into the above mechanism, unfortunately */ + glGetConvolutionParameterivEXT_func(GL_CONVOLUTION_2D, GL_MAX_CONVOLUTION_WIDTH, max); + glGetConvolutionParameterivEXT_func(GL_CONVOLUTION_2D, GL_MAX_CONVOLUTION_HEIGHT, max+1); + if (glGetError() == GL_NONE) { + printf(" GL_MAX_CONVOLUTION_WIDTH/HEIGHT = %d, %d\n", max[0], max[1]); + } + } + } +#endif + +#if defined(GL_ARB_vertex_program) + if (strstr(extensions, "GL_ARB_vertex_program")) { + print_program_limits(GL_VERTEX_PROGRAM_ARB); + } +#endif +#if defined(GL_ARB_fragment_program) + if (strstr(extensions, "GL_ARB_fragment_program")) { + print_program_limits(GL_FRAGMENT_PROGRAM_ARB); + } +#endif +#if defined(GL_ARB_vertex_shader) + if (strstr(extensions, "GL_ARB_vertex_shader")) { + print_shader_limits(GL_VERTEX_SHADER_ARB); + } +#endif +#if defined(GL_ARB_fragment_shader) + if (strstr(extensions, "GL_ARB_fragment_shader")) { + print_shader_limits(GL_FRAGMENT_SHADER_ARB); + } +#endif +} + + +static LRESULT CALLBACK +WndProc(HWND hWnd, + UINT uMsg, + WPARAM wParam, + LPARAM lParam ) +{ + switch (uMsg) { + case WM_DESTROY: + PostQuitMessage(0); + break; + default: + return DefWindowProc(hWnd, uMsg, wParam, lParam); + } + + return 0; +} + + +static void +print_screen_info(HDC _hdc, GLboolean limits) +{ + WNDCLASS wc; + HWND win; + HGLRC ctx; + int visinfo; + HDC hdc; + PIXELFORMATDESCRIPTOR pfd; + + memset(&wc, 0, sizeof wc); + wc.hbrBackground = (HBRUSH) (COLOR_BTNFACE + 1); + wc.hCursor = LoadCursor(NULL, IDC_ARROW); + wc.hIcon = LoadIcon(NULL, IDI_APPLICATION); + wc.lpfnWndProc = WndProc; + wc.lpszClassName = "wglinfo"; + wc.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW; + RegisterClass(&wc); + + win = CreateWindowEx(0, + wc.lpszClassName, + "wglinfo", + WS_CLIPSIBLINGS | WS_CLIPCHILDREN, + CW_USEDEFAULT, + CW_USEDEFAULT, + CW_USEDEFAULT, + CW_USEDEFAULT, + NULL, + NULL, + wc.hInstance, + NULL); + if (!win) { + fprintf(stderr, "Couldn't create window"); + return; + } + + hdc = GetDC(win); + if (!hdc) { + fprintf(stderr, "Couldn't obtain HDC"); + return; + } + + pfd.cColorBits = 3; + pfd.cRedBits = 1; + pfd.cGreenBits = 1; + pfd.cBlueBits = 1; + pfd.dwFlags = 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(hdc, &pfd); + if (!visinfo) { + pfd.dwFlags |= PFD_DOUBLEBUFFER; + visinfo = ChoosePixelFormat(hdc, &pfd); + } + + if (!visinfo) { + fprintf(stderr, "Error: couldn't find RGB WGL visual\n"); + return; + } + + SetPixelFormat(hdc, visinfo, &pfd); + ctx = wglCreateContext(hdc); + if (!ctx) { + fprintf(stderr, "Error: wglCreateContext failed\n"); + return; + } + + if (wglMakeCurrent(hdc, ctx)) { +#if defined(WGL_ARB_extensions_string) + PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetExtensionsStringARB_func = + (PFNWGLGETEXTENSIONSSTRINGARBPROC)wglGetProcAddress("wglGetExtensionsStringARB"); +#endif + const char *glVendor = (const char *) glGetString(GL_VENDOR); + const char *glRenderer = (const char *) glGetString(GL_RENDERER); + const char *glVersion = (const char *) glGetString(GL_VERSION); + const char *glExtensions = (const char *) glGetString(GL_EXTENSIONS); + +#if defined(WGL_ARB_extensions_string) + if(wglGetExtensionsStringARB_func) { + const char *wglExtensions = wglGetExtensionsStringARB_func(hdc); + if(wglExtensions) { + printf("WGL extensions:\n"); + print_extension_list(wglExtensions); + } + } +#endif + printf("OpenGL vendor string: %s\n", glVendor); + printf("OpenGL renderer string: %s\n", glRenderer); + printf("OpenGL version string: %s\n", glVersion); +#ifdef GL_VERSION_2_0 + if (glVersion[0] >= '2' && glVersion[1] == '.') { + char *v = (char *) glGetString(GL_SHADING_LANGUAGE_VERSION); + printf("OpenGL shading language version string: %s\n", v); + } +#endif + + printf("OpenGL extensions:\n"); + print_extension_list(glExtensions); + if (limits) + print_limits(glExtensions); + } + else { + fprintf(stderr, "Error: wglMakeCurrent failed\n"); + } + + DestroyWindow(win); +} + + +static const char * +visual_render_type_name(BYTE iPixelType) +{ + switch (iPixelType) { + case PFD_TYPE_RGBA: + return "rgba"; + case PFD_TYPE_COLORINDEX: + return "ci"; + default: + return ""; + } +} + +static void +print_visual_attribs_verbose(int iPixelFormat, LPPIXELFORMATDESCRIPTOR ppfd) +{ + printf("Visual ID: %x generic=%d native=%d\n", + iPixelFormat, + ppfd->dwFlags & PFD_GENERIC_FORMAT ? 1 : 0, + ppfd->dwFlags & PFD_DRAW_TO_WINDOW ? 1 : 0); + printf(" bufferSize=%d level=%d renderType=%s doubleBuffer=%d stereo=%d\n", + 0 /* ppfd->bufferSize */, 0 /* ppfd->level */, + visual_render_type_name(ppfd->iPixelType), + ppfd->dwFlags & PFD_DOUBLEBUFFER ? 1 : 0, + ppfd->dwFlags & PFD_STEREO ? 1 : 0); + printf(" rgba: cRedBits=%d cGreenBits=%d cBlueBits=%d cAlphaBits=%d\n", + ppfd->cRedBits, ppfd->cGreenBits, + ppfd->cBlueBits, ppfd->cAlphaBits); + printf(" cAuxBuffers=%d cDepthBits=%d cStencilBits=%d\n", + ppfd->cAuxBuffers, ppfd->cDepthBits, ppfd->cStencilBits); + printf(" accum: cRedBits=%d cGreenBits=%d cBlueBits=%d cAlphaBits=%d\n", + ppfd->cAccumRedBits, ppfd->cAccumGreenBits, + ppfd->cAccumBlueBits, ppfd->cAccumAlphaBits); + printf(" multiSample=%d multiSampleBuffers=%d\n", + 0 /* ppfd->numSamples */, 0 /* ppfd->numMultisample */); +} + + +static void +print_visual_attribs_short_header(void) +{ + printf(" visual x bf lv rg d st colorbuffer ax dp st accumbuffer ms cav\n"); + printf(" id gen nat sp sz l ci b ro r g b a bf th cl r g b a ns b eat\n"); + printf("-----------------------------------------------------------------------\n"); +} + + +static void +print_visual_attribs_short(int iPixelFormat, LPPIXELFORMATDESCRIPTOR ppfd) +{ + char *caveat = "None"; + + printf("0x%02x %2d %2d %2d %2d %2d %c%c %c %c %2d %2d %2d %2d %2d %2d %2d", + iPixelFormat, + ppfd->dwFlags & PFD_GENERIC_FORMAT ? 1 : 0, + ppfd->dwFlags & PFD_DRAW_TO_WINDOW ? 1 : 0, + 0, + 0 /* ppfd->bufferSize */, + 0 /* ppfd->level */, + ppfd->iPixelType == PFD_TYPE_RGBA ? 'r' : ' ', + ppfd->iPixelType == PFD_TYPE_COLORINDEX ? 'c' : ' ', + ppfd->dwFlags & PFD_DOUBLEBUFFER ? 'y' : '.', + ppfd->dwFlags & PFD_STEREO ? 'y' : '.', + ppfd->cRedBits, ppfd->cGreenBits, + ppfd->cBlueBits, ppfd->cAlphaBits, + ppfd->cAuxBuffers, + ppfd->cDepthBits, + ppfd->cStencilBits + ); + + printf(" %2d %2d %2d %2d %2d %1d %s\n", + ppfd->cAccumRedBits, ppfd->cAccumGreenBits, + ppfd->cAccumBlueBits, ppfd->cAccumAlphaBits, + 0 /* ppfd->numSamples */, 0 /* ppfd->numMultisample */, + caveat + ); +} + + +static void +print_visual_attribs_long_header(void) +{ + printf("Vis Vis Visual Trans buff lev render DB ste r g b a aux dep ste accum buffers MS MS\n"); + printf(" ID Depth Type parent size el type reo sz sz sz sz buf th ncl r g b a num bufs\n"); + printf("----------------------------------------------------------------------------------------------------\n"); +} + + +static void +print_visual_attribs_long(int iPixelFormat, LPPIXELFORMATDESCRIPTOR ppfd) +{ + printf("0x%2x %2d %11d %2d %2d %2d %4s %3d %3d %3d %3d %3d %3d", + iPixelFormat, + ppfd->dwFlags & PFD_GENERIC_FORMAT ? 1 : 0, + ppfd->dwFlags & PFD_DRAW_TO_WINDOW ? 1 : 0, + 0, + 0 /* ppfd->bufferSize */, + 0 /* ppfd->level */, + visual_render_type_name(ppfd->iPixelType), + ppfd->dwFlags & PFD_DOUBLEBUFFER ? 1 : 0, + ppfd->dwFlags & PFD_STEREO ? 1 : 0, + ppfd->cRedBits, ppfd->cGreenBits, + ppfd->cBlueBits, ppfd->cAlphaBits + ); + + printf(" %3d %4d %2d %3d %3d %3d %3d %2d %2d\n", + ppfd->cAuxBuffers, + ppfd->cDepthBits, + ppfd->cStencilBits, + ppfd->cAccumRedBits, ppfd->cAccumGreenBits, + ppfd->cAccumBlueBits, ppfd->cAccumAlphaBits, + 0 /* ppfd->numSamples */, 0 /* ppfd->numMultisample */ + ); +} + + +static void +print_visual_info(HDC hdc, InfoMode mode) +{ + PIXELFORMATDESCRIPTOR pfd; + int numVisuals, numWglVisuals; + int i; + + numVisuals = DescribePixelFormat(hdc, 1, sizeof(PIXELFORMATDESCRIPTOR), NULL); + if (numVisuals == 0) + return; + + numWglVisuals = 0; + for (i = 0; i < numVisuals; i++) { + if(!DescribePixelFormat(hdc, i, sizeof(PIXELFORMATDESCRIPTOR), &pfd)) + continue; + + //if(!(pfd.dwFlags & PFD_SUPPORT_OPENGL)) + // continue; + + ++numWglVisuals; + } + + printf("%d WGL Visuals\n", numWglVisuals); + + if (mode == Normal) + print_visual_attribs_short_header(); + else if (mode == Wide) + print_visual_attribs_long_header(); + + for (i = 0; i < numVisuals; i++) { + if(!DescribePixelFormat(hdc, i, sizeof(PIXELFORMATDESCRIPTOR), &pfd)) + continue; + + //if(!(pfd.dwFlags & PFD_SUPPORT_OPENGL)) + // continue; + + if (mode == Verbose) + print_visual_attribs_verbose(i, &pfd); + else if (mode == Normal) + print_visual_attribs_short(i, &pfd); + else if (mode == Wide) + print_visual_attribs_long(i, &pfd); + } + printf("\n"); +} + + +/* + * Examine all visuals to find the so-called best one. + * We prefer deepest RGBA buffer with depth, stencil and accum + * that has no caveats. + */ +static int +find_best_visual(HDC hdc) +{ +#if 0 + XVisualInfo theTemplate; + XVisualInfo *visuals; + int numVisuals; + long mask; + int i; + struct visual_attribs bestVis; + + /* get list of all visuals on this screen */ + theTemplate.screen = scrnum; + mask = VisualScreenMask; + visuals = XGetVisualInfo(hdc, mask, &theTemplate, &numVisuals); + + /* init bestVis with first visual info */ + get_visual_attribs(hdc, &visuals[0], &bestVis); + + /* try to find a "better" visual */ + for (i = 1; i < numVisuals; i++) { + struct visual_attribs vis; + + get_visual_attribs(hdc, &visuals[i], &vis); + + /* always skip visuals with caveats */ + if (vis.visualCaveat != GLX_NONE_EXT) + continue; + + /* see if this vis is better than bestVis */ + if ((!bestVis.supportsGL && vis.supportsGL) || + (bestVis.visualCaveat != GLX_NONE_EXT) || + (bestVis.iPixelType != vis.iPixelType) || + (!bestVis.doubleBuffer && vis.doubleBuffer) || + (bestVis.cRedBits < vis.cRedBits) || + (bestVis.cGreenBits < vis.cGreenBits) || + (bestVis.cBlueBits < vis.cBlueBits) || + (bestVis.cAlphaBits < vis.cAlphaBits) || + (bestVis.cDepthBits < vis.cDepthBits) || + (bestVis.cStencilBits < vis.cStencilBits) || + (bestVis.cAccumRedBits < vis.cAccumRedBits)) { + /* found a better visual */ + bestVis = vis; + } + } + + return bestVis.id; +#else + return 0; +#endif +} + + +static void +usage(void) +{ + printf("Usage: glxinfo [-v] [-t] [-h] [-i] [-b] [-display <dname>]\n"); + printf("\t-v: Print visuals info in verbose form.\n"); + printf("\t-t: Print verbose table.\n"); + printf("\t-h: This information.\n"); + printf("\t-b: Find the 'best' visual and print it's number.\n"); + printf("\t-l: Print interesting OpenGL limits.\n"); +} + + +int +main(int argc, char *argv[]) +{ + HDC hdc; + InfoMode mode = Normal; + GLboolean findBest = GL_FALSE; + GLboolean limits = GL_FALSE; + int i; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-t") == 0) { + mode = Wide; + } + else if (strcmp(argv[i], "-v") == 0) { + mode = Verbose; + } + else if (strcmp(argv[i], "-b") == 0) { + findBest = GL_TRUE; + } + else if (strcmp(argv[i], "-l") == 0) { + limits = GL_TRUE; + } + else if (strcmp(argv[i], "-h") == 0) { + usage(); + return 0; + } + else { + printf("Unknown option `%s'\n", argv[i]); + usage(); + return 0; + } + } + + hdc = CreateDC(TEXT("DISPLAY"), NULL, NULL, NULL); + + if (findBest) { + int b; + b = find_best_visual(hdc); + printf("%d\n", b); + } + else { + print_screen_info(hdc, limits); + printf("\n"); + print_visual_info(hdc, mode); + } + + return 0; +} diff --git a/progs/wgl/wglthreads/wglthreads.c b/progs/wgl/wglthreads/wglthreads.c new file mode 100644 index 0000000000..27dca10f2a --- /dev/null +++ b/progs/wgl/wglthreads/wglthreads.c @@ -0,0 +1,636 @@ +/* + * 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. + * + * + * Port to windows done by Michal Krol. + */ + + +/* + * This program tests WGL thread safety. + * Command line options: + * -h Print usage + * -l Enable application-side locking + * -n <num threads> Number of threads to create (default is 2) + * -t Use texture mapping + * -s Force single-threaded. + * + * Brian Paul 20 July 2000 + */ + + +/* + * Notes: + * - Each thread gets its own WGL context. + * + * - The WGL contexts share texture objects. + * + * - When 't' is pressed to update the texture image, the window/thread which + * has input focus is signalled to change the texture. The other threads + * should see the updated texture the next time they call glBindTexture. + */ + + +#include <assert.h> +#include <windows.h> +#include <GL/gl.h> +#include <math.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#pragma comment(lib, "opengl32.lib") + + +/* + * Each window/thread/context: + */ +struct winthread { + int Index; + HANDLE Thread; + HWND Win; + HDC hDC; + HGLRC Context; + float Angle; + int WinWidth, WinHeight; + GLboolean NewSize; + HANDLE hEventInitialised; + GLboolean Initialized; + GLboolean MakeNewTexture; + HANDLE hEventRedraw; +}; + + +#define MAX_WINTHREADS 100 +static struct winthread WinThreads[MAX_WINTHREADS]; +static int NumWinThreads = 2; +static HANDLE ExitEvent = NULL; + +static GLboolean Locking = 0; +static GLboolean Texture = GL_FALSE; +static GLboolean SingleThreaded = GL_FALSE; +static GLuint TexObj = 12; +static GLboolean Animate = GL_TRUE; + +static CRITICAL_SECTION Mutex; + + +static void +Error(const char *msg) +{ + fprintf(stderr, "Error: %s\n", msg); + exit(1); +} + + +static void +signal_redraw(void) +{ + int i; + + for (i = 0; i < NumWinThreads; i++) { + SetEvent(WinThreads[i].hEventRedraw); + } +} + + +static void +MakeNewTexture(struct winthread *wt) +{ +#define TEX_SIZE 128 + static float step = 0.0f; + GLfloat image[TEX_SIZE][TEX_SIZE][4]; + GLint width; + int i, j; + + for (j = 0; j < TEX_SIZE; j++) { + for (i = 0; i < TEX_SIZE; i++) { + float dt = 5.0f * (j - 0.5f * TEX_SIZE) / TEX_SIZE; + float ds = 5.0f * (i - 0.5f * TEX_SIZE) / TEX_SIZE; + float r = dt * dt + ds * ds + step; + image[j][i][0] = + image[j][i][1] = + image[j][i][2] = 0.75f + 0.25f * (float) cos(r); + image[j][i][3] = 1.0f; + } + } + + step += 0.5; + + glBindTexture(GL_TEXTURE_2D, TexObj); + + glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &width); + if (width) { + assert(width == TEX_SIZE); + /* sub-tex replace */ + glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, TEX_SIZE, TEX_SIZE, + GL_RGBA, GL_FLOAT, image); + } + else { + /* create new */ + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, TEX_SIZE, TEX_SIZE, 0, + GL_RGBA, GL_FLOAT, image); + } +} + + + +/* draw a colored cube */ +static void +draw_object(void) +{ + glPushMatrix(); + glScalef(0.75f, 0.75f, 0.75f); + + glColor3f(1, 0, 0); + + if (Texture) { + glBindTexture(GL_TEXTURE_2D, TexObj); + glEnable(GL_TEXTURE_2D); + } + else { + glDisable(GL_TEXTURE_2D); + } + + glBegin(GL_QUADS); + + /* -X */ + glColor3f(0, 1, 1); + 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); + + /* +X */ + glColor3f(1, 0, 0); + 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); + + /* -Y */ + glColor3f(1, 0, 1); + 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); + + /* +Y */ + glColor3f(0, 1, 0); + 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); + + /* -Z */ + glColor3f(1, 1, 0); + 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); + + /* +Y */ + glColor3f(0, 0, 1); + 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(); +} + + +/* signal resize of given window */ +static void +resize(struct winthread *wt, int w, int h) +{ + wt->NewSize = GL_TRUE; + wt->WinWidth = w; + wt->WinHeight = h; + if (!Animate) + SetEvent(wt->hEventRedraw); +} + + +/* + * We have an instance of this for each thread. + */ +static void +draw_loop(struct winthread *wt) +{ + while (1) { + GLboolean draw = Animate; + MSG msg; + + if (Animate) { + /* wait 5 ms for signal either to exit or process messages */ + switch (MsgWaitForMultipleObjects(1, &ExitEvent, FALSE, 5, QS_ALLINPUT)) { + case WAIT_OBJECT_0: + SendMessage(wt->Win, WM_CLOSE, 0, 0); + break; + case WAIT_OBJECT_0 + 1: + break; + } + } + else { + HANDLE events[2]; + + events[0] = wt->hEventRedraw; + events[1] = ExitEvent; + + /* wait for signal either to draw, exit or process messages */ + switch (MsgWaitForMultipleObjects(2, events, FALSE, INFINITE, QS_ALLINPUT)) { + case WAIT_OBJECT_0: + draw = GL_TRUE; + break; + case WAIT_OBJECT_0 + 1: + SendMessage(wt->Win, WM_CLOSE, 0, 0); + break; + case WAIT_OBJECT_0 + 2: + break; + } + } + + while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) { + if (msg.message == WM_QUIT) { + return; + } + TranslateMessage(&msg); + DispatchMessage(&msg); + } + + if (!draw) + continue; + + if (Locking) + EnterCriticalSection(&Mutex); + + wglMakeCurrent(wt->hDC, wt->Context); + + if (!wt->Initialized) { + printf("wglthreads: %d: GL_RENDERER = %s\n", wt->Index, + (char *) glGetString(GL_RENDERER)); + if (Texture /*&& wt->Index == 0*/) { + MakeNewTexture(wt); + } + wt->Initialized = GL_TRUE; + } + + if (Locking) + LeaveCriticalSection(&Mutex); + + glEnable(GL_DEPTH_TEST); + + if (wt->NewSize) { + GLfloat w = (float) wt->WinWidth / (float) wt->WinHeight; + glViewport(0, 0, wt->WinWidth, wt->WinHeight); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glFrustum(-w, w, -1.0, 1.0, 1.5, 10); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glTranslatef(0, 0, -2.5); + wt->NewSize = GL_FALSE; + } + + if (wt->MakeNewTexture) { + MakeNewTexture(wt); + wt->MakeNewTexture = GL_FALSE; + } + + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + glPushMatrix(); + glRotatef(wt->Angle, 0, 1, 0); + glRotatef(wt->Angle, 1, 0, 0); + glScalef(0.7f, 0.7f, 0.7f); + draw_object(); + glPopMatrix(); + + if (Locking) + EnterCriticalSection(&Mutex); + + SwapBuffers(wt->hDC); + + if (Locking) + LeaveCriticalSection(&Mutex); + + wt->Angle += 1.0; + } +} + + +static void +keypress(WPARAM keySym, struct winthread *wt) +{ + switch (keySym) { + case VK_ESCAPE: + /* tell all threads to exit */ + SetEvent(ExitEvent); + /*printf("exit draw_loop %d\n", wt->Index);*/ + return; + case 't': + case 'T': + if (Texture) { + wt->MakeNewTexture = GL_TRUE; + if (!Animate) + signal_redraw(); + } + break; + case 'a': + case 'A': + Animate = !Animate; + if (Animate) + signal_redraw(); + break; + case 's': + case 'S': + if (!Animate) + signal_redraw(); + break; + default: + ; /* nop */ + } +} + + +static LRESULT CALLBACK +WndProc(HWND hWnd, + UINT uMsg, + WPARAM wParam, + LPARAM lParam ) +{ + int i; + + switch (uMsg) { + case WM_KEYDOWN: + for (i = 0; i < NumWinThreads; i++) { + struct winthread *wt = &WinThreads[i]; + + if (hWnd == wt->Win) { + keypress(wParam, wt); + break; + } + } + break; + case WM_SIZE: + for (i = 0; i < NumWinThreads; i++) { + struct winthread *wt = &WinThreads[i]; + + if (hWnd == wt->Win) { + RECT r; + + GetClientRect(hWnd, &r); + resize(wt, r.right, r.bottom); + break; + } + } + break; + case WM_DESTROY: + PostQuitMessage(0); + break; + default: + return DefWindowProc(hWnd, uMsg, wParam, lParam); + } + + return 0; +} + +/* + * we'll call this once for each thread, before the threads are created. + */ +static void +create_window(struct winthread *wt, HGLRC shareCtx) +{ + WNDCLASS wc = {0}; + int width = 160, height = 160; + int xpos = (wt->Index % 8) * (width + 10); + int ypos = (wt->Index / 8) * (width + 20); + HWND win; + HDC hdc; + PIXELFORMATDESCRIPTOR pfd = {0}; + int visinfo; + HGLRC ctx; + + wc.hbrBackground = (HBRUSH) (COLOR_BTNFACE + 1); + wc.hCursor = LoadCursor(NULL, IDC_ARROW); + wc.hIcon = LoadIcon(NULL, IDI_APPLICATION); + wc.lpfnWndProc = WndProc; + wc.lpszClassName = "wglthreads"; + wc.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW; + RegisterClass(&wc); + + win = CreateWindowEx(0, + wc.lpszClassName, + "wglthreads", + WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_TILEDWINDOW, + xpos, + ypos, + width, + height, + NULL, + NULL, + wc.hInstance, + (LPVOID) wt); + if (!win) { + Error("Couldn't create window"); + } + + hdc = GetDC(win); + if (!hdc) { + 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(hdc, &pfd); + if (!visinfo) { + Error("Unable to find RGB, Z, double-buffered visual"); + } + + SetPixelFormat(hdc, visinfo, &pfd); + ctx = wglCreateContext(hdc); + if (!ctx) { + Error("Couldn't create WGL context"); + } + + if (shareCtx) { + if(!wglShareLists(shareCtx, ctx)) + Error("Couldn't share WGL context lists"); + } + + /* save the info for this window/context */ + wt->Win = win; + wt->hDC = hdc; + wt->Context = ctx; + wt->Angle = 0.0; + wt->WinWidth = width; + wt->WinHeight = height; + wt->NewSize = GL_TRUE; +} + + +/* + * Called by pthread_create() + */ +static DWORD WINAPI +ThreadProc(void *p) +{ + struct winthread *wt = (struct winthread *) p; + HGLRC share; + + /* Wait for the previous thread */ + if(Texture && wt->Index > 0) { + WaitForSingleObject(WinThreads[wt->Index - 1].hEventInitialised, INFINITE); + share = WinThreads[0].Context; + } + else + share = 0; + + share = (Texture && wt->Index > 0) ? WinThreads[0].Context : 0; + create_window(wt, share); + SetEvent(wt->hEventInitialised); + + /* Wait for all threads to initialize otherwise wglShareLists will fail */ + if(wt->Index < NumWinThreads - 1) + WaitForSingleObject(WinThreads[NumWinThreads - 1].hEventInitialised, INFINITE); + + draw_loop(wt); + return 0; +} + + +static void +usage(void) +{ + printf("wglthreads: test of GL thread safety (any key = exit)\n"); + printf("Usage:\n"); + printf(" wglthreads [options]\n"); + printf("Options:\n"); + printf(" -h Show this usage screen\n"); + printf(" -n NUMTHREADS Number of threads to create\n"); + printf(" -l Use application-side locking\n"); + printf(" -t Enable texturing\n"); + printf(" -s Force single-threaded\n"); + printf("Keyboard:\n"); + printf(" Esc Exit\n"); + printf(" t Change texture image (requires -t option)\n"); + printf(" a Toggle animation\n"); + printf(" s Step rotation (when not animating)\n"); +} + + +int +main(int argc, char *argv[]) +{ + int i; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-h") == 0) { + usage(); + exit(0); + } + else if (strcmp(argv[i], "-l") == 0) { + Locking = 1; + } + else if (strcmp(argv[i], "-t") == 0) { + Texture = 1; + } + else if (strcmp(argv[i], "-n") == 0 && i + 1 < argc) { + NumWinThreads = atoi(argv[i + 1]); + if (NumWinThreads < 1) + NumWinThreads = 1; + else if (NumWinThreads > MAX_WINTHREADS) + NumWinThreads = MAX_WINTHREADS; + i++; + } + else if (strcmp(argv[i], "-s") == 0) { + SingleThreaded = GL_TRUE; + } + else { + usage(); + exit(1); + } + } + + if (SingleThreaded) + printf("wglthreads: Forcing single-threaded, no other threads will be created.\n"); + + if (Locking) + printf("wglthreads: Using explicit locks around WGL calls.\n"); + else + printf("wglthreads: No explict locking.\n"); + + InitializeCriticalSection(&Mutex); + ExitEvent = CreateEvent(NULL, TRUE, FALSE, NULL); + + if (SingleThreaded) { + NumWinThreads = 1; + + WinThreads[0].Index = 0; + WinThreads[0].hEventInitialised = CreateEvent(NULL, TRUE, FALSE, NULL); + WinThreads[0].hEventRedraw = CreateEvent(NULL, FALSE, FALSE, NULL); + + ThreadProc((void*) &WinThreads[0]); + } + else { + HANDLE threads[MAX_WINTHREADS]; + + printf("wglthreads: creating threads\n"); + + /* Create the events */ + for (i = 0; i < NumWinThreads; i++) { + WinThreads[i].Index = i; + WinThreads[i].hEventInitialised = CreateEvent(NULL, TRUE, FALSE, NULL); + WinThreads[i].hEventRedraw = CreateEvent(NULL, FALSE, FALSE, NULL); + } + + /* Create the threads */ + for (i = 0; i < NumWinThreads; i++) { + DWORD id; + + WinThreads[i].Thread = CreateThread(NULL, + 0, + ThreadProc, + (void*) &WinThreads[i], + 0, + &id); + printf("wglthreads: Created thread %p\n", (void *) WinThreads[i].Thread); + + threads[i] = WinThreads[i].Thread; + } + + /* Wait for all threads to finish. */ + WaitForMultipleObjects(NumWinThreads, threads, TRUE, INFINITE); + } + + return 0; +} |