diff options
| -rw-r--r-- | progs/es1/xegl/Makefile | 77 | ||||
| -rw-r--r-- | progs/es1/xegl/drawtex.c | 427 | ||||
| -rw-r--r-- | progs/es1/xegl/es1_info.c | 274 | ||||
| -rw-r--r-- | progs/es1/xegl/msaa.c | 442 | ||||
| -rw-r--r-- | progs/es1/xegl/pbuffer.c | 607 | ||||
| -rw-r--r-- | progs/es1/xegl/render_tex.c | 657 | ||||
| -rw-r--r-- | progs/es1/xegl/torus.c | 509 | ||||
| -rw-r--r-- | progs/es1/xegl/tri.c | 470 | ||||
| -rw-r--r-- | progs/es1/xegl/two_win.c | 433 | ||||
| -rw-r--r-- | progs/es2/xegl/Makefile | 51 | ||||
| -rw-r--r-- | progs/es2/xegl/tri.c | 514 |
11 files changed, 4461 insertions, 0 deletions
diff --git a/progs/es1/xegl/Makefile b/progs/es1/xegl/Makefile new file mode 100644 index 0000000000..7f684d68e3 --- /dev/null +++ b/progs/es1/xegl/Makefile @@ -0,0 +1,77 @@ +# progs/es1/xegl/Makefile + +TOP = ../../.. +include $(TOP)/configs/current + + +INCLUDE_DIRS = \ + -I$(TOP)/include \ + +HEADERS = $(TOP)/include/GLES/egl.h + + +ES1_LIB_DEPS = \ + $(TOP)/$(LIB_DIR)/libEGL.so \ + $(TOP)/$(LIB_DIR)/libGLESv1_CM.so + + +ES1_LIBS = \ + -L$(TOP)/$(LIB_DIR) -lEGL \ + -L$(TOP)/$(LIB_DIR) -lGLESv1_CM $(LIBDRM_LIB) -lX11 + +PROGRAMS = \ + drawtex \ + es1_info \ + msaa \ + pbuffer \ + render_tex \ + torus \ + tri \ + two_win + + +.c.o: + $(CC) -c $(INCLUDE_DIRS) $(CFLAGS) $< -o $@ + + + +default: $(PROGRAMS) + + + +drawtex: drawtex.o $(ES1_LIB_DEPS) + $(CC) $(CFLAGS) drawtex.o $(ES1_LIBS) -o $@ + + +es1_info: es1_info.o $(ES1_LIB_DEPS) + $(CC) $(CFLAGS) es1_info.o $(ES1_LIBS) -o $@ + + +msaa: msaa.o $(ES1_LIB_DEPS) + $(CC) $(CFLAGS) msaa.o $(ES1_LIBS) -o $@ + + +pbuffer: pbuffer.o $(ES1_LIB_DEPS) + $(CC) $(CFLAGS) pbuffer.o $(ES1_LIBS) -o $@ + + +render_tex: render_tex.o $(ES1_LIB_DEPS) + $(CC) $(CFLAGS) render_tex.o $(ES1_LIBS) -o $@ + + +torus: torus.o $(ES1_LIB_DEPS) + $(CC) $(CFLAGS) torus.o $(ES1_LIBS) -o $@ + + +two_win: two_win.o $(ES1_LIB_DEPS) + $(CC) $(CFLAGS) two_win.o $(ES1_LIBS) -o $@ + + +tri: tri.o $(ES1_LIB_DEPS) + $(CC) $(CFLAGS) tri.o $(ES1_LIBS) -o $@ + + +clean: + rm -f *.o *~ + rm -f $(PROGRAMS) + diff --git a/progs/es1/xegl/drawtex.c b/progs/es1/xegl/drawtex.c new file mode 100644 index 0000000000..ca0615e267 --- /dev/null +++ b/progs/es1/xegl/drawtex.c @@ -0,0 +1,427 @@ +/* + * Copyright (C) 2008 Tunsgten Graphics,Inc. All Rights Reserved. + */ + +/* + * Test GL_OES_draw_texture + * Brian Paul + * August 2008 + */ + +#define GL_GLEXT_PROTOTYPES + +#include <assert.h> +#include <math.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/keysym.h> +#include <GLES/gl.h> +#include <GLES/glext.h> +#include <EGL/egl.h> + + + +static GLfloat view_posx = 10.0, view_posy = 20.0; +static GLfloat width = 200, height = 200; + + +static void +draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glDrawTexfOES(view_posx, view_posy, 0.0, width, height); +} + + +/* new window size or exposure */ +static void +reshape(int width, int height) +{ + GLfloat ar = (GLfloat) width / (GLfloat) height; + + glViewport(0, 0, (GLint) width, (GLint) height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + +#ifdef GL_VERSION_ES_CM_1_0 + glFrustumf(-ar, ar, -1, 1, 5.0, 60.0); +#else + glFrustum(-ar, ar, -1, 1, 5.0, 60.0); +#endif + + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glTranslatef(0.0, 0.0, -15.0); +} + + +static float +dist(GLuint i, GLuint j, float x, float y) +{ + return sqrt((i-x) * (i-x) + (j-y) * (j-y)); +} + +static void +make_smile_texture(void) +{ +#define SZ 128 + GLenum Filter = GL_LINEAR; + GLubyte image[SZ][SZ][4]; + GLuint i, j; + GLint cropRect[4]; + + for (i = 0; i < SZ; i++) { + for (j = 0; j < SZ; j++) { + GLfloat d_mouth = dist(i, j, SZ/2, SZ/2); + GLfloat d_rt_eye = dist(i, j, SZ*3/4, SZ*3/4); + GLfloat d_lt_eye = dist(i, j, SZ*3/4, SZ*1/4); + if (d_rt_eye < SZ / 8 || d_lt_eye < SZ / 8) { + image[i][j][0] = 20; + image[i][j][1] = 50; + image[i][j][2] = 255; + image[i][j][3] = 255; + } + else if (i < SZ/2 && d_mouth < SZ/3) { + image[i][j][0] = 255; + image[i][j][1] = 20; + image[i][j][2] = 20; + image[i][j][3] = 255; + } + else { + image[i][j][0] = 200; + image[i][j][1] = 200; + image[i][j][2] = 200; + image[i][j][3] = 255; + } + } + } + + glActiveTexture(GL_TEXTURE0); /* unit 0 */ + glBindTexture(GL_TEXTURE_2D, 42); + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, SZ, SZ, 0, + GL_RGBA, GL_UNSIGNED_BYTE, image); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); + + cropRect[0] = 0; + cropRect[1] = 0; + cropRect[2] = SZ; + cropRect[3] = SZ; + glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, cropRect); +#undef SZ +} + + + +static void +init(void) +{ + const char *ext = (char *) glGetString(GL_EXTENSIONS); + + if (!strstr(ext, "GL_OES_draw_texture")) { + fprintf(stderr, "Sorry, this program requires GL_OES_draw_texture"); + exit(1); + } + + glClearColor(0.4, 0.4, 0.4, 0.0); + + make_smile_texture(); + glEnable(GL_TEXTURE_2D); +} + + +/* + * Create an RGB, double-buffered X window. + * Return the window and context handles. + */ +static void +make_x_window(Display *x_dpy, EGLDisplay egl_dpy, + const char *name, + int x, int y, int width, int height, + Window *winRet, + EGLContext *ctxRet, + EGLSurface *surfRet) +{ + static const EGLint attribs[] = { + EGL_RED_SIZE, 1, + EGL_GREEN_SIZE, 1, + EGL_BLUE_SIZE, 1, + EGL_NONE + }; + + int scrnum; + XSetWindowAttributes attr; + unsigned long mask; + Window root; + Window win; + XVisualInfo *visInfo, visTemplate; + int num_visuals; + EGLContext ctx; + EGLConfig config; + EGLint num_configs; + EGLint vid; + + scrnum = DefaultScreen( x_dpy ); + root = RootWindow( x_dpy, scrnum ); + + if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) { + printf("Error: couldn't get an EGL visual config\n"); + exit(1); + } + + assert(config); + assert(num_configs > 0); + + if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) { + printf("Error: eglGetConfigAttrib() failed\n"); + exit(1); + } + + /* The X window visual must match the EGL config */ + visTemplate.visualid = vid; + visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals); + if (!visInfo) { + printf("Error: couldn't get X visual\n"); + exit(1); + } + + /* window attributes */ + attr.background_pixel = 0; + attr.border_pixel = 0; + attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone); + attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask; + mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask; + + win = XCreateWindow( x_dpy, root, 0, 0, width, height, + 0, visInfo->depth, InputOutput, + visInfo->visual, mask, &attr ); + + /* set hints and properties */ + { + XSizeHints sizehints; + sizehints.x = x; + sizehints.y = y; + sizehints.width = width; + sizehints.height = height; + sizehints.flags = USSize | USPosition; + XSetNormalHints(x_dpy, win, &sizehints); + XSetStandardProperties(x_dpy, win, name, name, + None, (char **)NULL, 0, &sizehints); + } + + eglBindAPI(EGL_OPENGL_ES_API); + + ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL ); + if (!ctx) { + printf("Error: eglCreateContext failed\n"); + exit(1); + } + + *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL); + + if (!*surfRet) { + printf("Error: eglCreateWindowSurface failed\n"); + exit(1); + } + + XFree(visInfo); + + *winRet = win; + *ctxRet = ctx; +} + + +static void +event_loop(Display *dpy, Window win, + EGLDisplay egl_dpy, EGLSurface egl_surf) +{ + int anim = 0; + + while (1) { + int redraw = 0; + + if (!anim || XPending(dpy)) { + XEvent event; + XNextEvent(dpy, &event); + + switch (event.type) { + case Expose: + redraw = 1; + break; + case ConfigureNotify: + reshape(event.xconfigure.width, event.xconfigure.height); + break; + case KeyPress: + { + char buffer[10]; + int r, code; + code = XLookupKeysym(&event.xkey, 0); + if (code == XK_Left) { + view_posx -= 1.0; + } + else if (code == XK_Right) { + view_posx += 1.0; + } + else if (code == XK_Up) { + view_posy += 1.0; + } + else if (code == XK_Down) { + view_posy -= 1.0; + } + else { + r = XLookupString(&event.xkey, buffer, sizeof(buffer), + NULL, NULL); + if (buffer[0] == ' ') { + anim = !anim; + } + else if (buffer[0] == 'w') { + width -= 1.0f; + } + else if (buffer[0] == 'W') { + width += 1.0f; + } + else if (buffer[0] == 'h') { + height -= 1.0f; + } + else if (buffer[0] == 'H') { + height += 1.0f; + } + else if (buffer[0] == 27) { + /* escape */ + return; + } + } + } + redraw = 1; + break; + default: + ; /*no-op*/ + } + } + + if (anim) { + view_posx += 1.0; + view_posy += 2.0; + redraw = 1; + } + + if (redraw) { + draw(); + eglSwapBuffers(egl_dpy, egl_surf); + } + } +} + + +static void +usage(void) +{ + printf("Usage:\n"); + printf(" -display <displayname> set the display to run on\n"); + printf(" -info display OpenGL renderer info\n"); +} + + +int +main(int argc, char *argv[]) +{ + const int winWidth = 400, winHeight = 300; + Display *x_dpy; + Window win; + EGLSurface egl_surf; + EGLContext egl_ctx; + EGLDisplay egl_dpy; + char *dpyName = NULL; + GLboolean printInfo = GL_FALSE; + EGLint egl_major, egl_minor; + int i; + const char *s; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-display") == 0) { + dpyName = argv[i+1]; + i++; + } + else if (strcmp(argv[i], "-info") == 0) { + printInfo = GL_TRUE; + } + else { + usage(); + return -1; + } + } + + x_dpy = XOpenDisplay(dpyName); + if (!x_dpy) { + printf("Error: couldn't open display %s\n", + dpyName ? dpyName : getenv("DISPLAY")); + return -1; + } + + egl_dpy = eglGetDisplay(x_dpy); + if (!egl_dpy) { + printf("Error: eglGetDisplay() failed\n"); + return -1; + } + + if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) { + printf("Error: eglInitialize() failed\n"); + return -1; + } + + s = eglQueryString(egl_dpy, EGL_VERSION); + printf("EGL_VERSION = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_VENDOR); + printf("EGL_VENDOR = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_EXTENSIONS); + printf("EGL_EXTENSIONS = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_CLIENT_APIS); + printf("EGL_CLIENT_APIS = %s\n", s); + + make_x_window(x_dpy, egl_dpy, + "drawtex", 0, 0, winWidth, winHeight, + &win, &egl_ctx, &egl_surf); + + XMapWindow(x_dpy, win); + if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) { + printf("Error: eglMakeCurrent() failed\n"); + return -1; + } + + if (printInfo) { + 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)); + printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS)); + } + + init(); + + /* Set initial projection/viewing transformation. + * We can't be sure we'll get a ConfigureNotify event when the window + * first appears. + */ + reshape(winWidth, winHeight); + + event_loop(x_dpy, win, egl_dpy, egl_surf); + + eglDestroyContext(egl_dpy, egl_ctx); + eglDestroySurface(egl_dpy, egl_surf); + eglTerminate(egl_dpy); + + + XDestroyWindow(x_dpy, win); + XCloseDisplay(x_dpy); + + return 0; +} diff --git a/progs/es1/xegl/es1_info.c b/progs/es1/xegl/es1_info.c new file mode 100644 index 0000000000..963304de13 --- /dev/null +++ b/progs/es1/xegl/es1_info.c @@ -0,0 +1,274 @@ +/* + * Copyright (C) 2008 Tunsgten Graphics,Inc. All Rights Reserved. + */ + +/* + * List OpenGL ES extensions. + * Print ES 1 or ES 2 extensions depending on which library we're + * linked with: libGLESv1_CM.so vs libGLESv2.so + */ + +#define GL_GLEXT_PROTOTYPES + +#include <assert.h> +#include <math.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/keysym.h> +#include <GLES/gl.h> +#include <GLES/glext.h> +#include <EGL/egl.h> + + +/* + * 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"); +} + + +static void +info(EGLDisplay egl_dpy) +{ + const char *s; + + s = eglQueryString(egl_dpy, EGL_VERSION); + printf("EGL_VERSION = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_VENDOR); + printf("EGL_VENDOR = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_EXTENSIONS); + printf("EGL_EXTENSIONS = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_CLIENT_APIS); + printf("EGL_CLIENT_APIS = %s\n", s); + + printf("GL_VERSION: %s\n", (char *) glGetString(GL_VERSION)); + printf("GL_RENDERER: %s\n", (char *) glGetString(GL_RENDERER)); + printf("GL_EXTENSIONS:\n"); + print_extension_list((char *) glGetString(GL_EXTENSIONS)); +} + + +/* + * Create an RGB, double-buffered X window. + * Return the window and context handles. + */ +static void +make_x_window(Display *x_dpy, EGLDisplay egl_dpy, + const char *name, + int x, int y, int width, int height, + Window *winRet, + EGLContext *ctxRet, + EGLSurface *surfRet) +{ + static const EGLint attribs[] = { + EGL_RED_SIZE, 1, + EGL_GREEN_SIZE, 1, + EGL_BLUE_SIZE, 1, + EGL_NONE + }; + + int scrnum; + XSetWindowAttributes attr; + unsigned long mask; + Window root; + Window win; + XVisualInfo *visInfo, visTemplate; + int num_visuals; + EGLContext ctx; + EGLConfig config; + EGLint num_configs; + EGLint vid; + + scrnum = DefaultScreen( x_dpy ); + root = RootWindow( x_dpy, scrnum ); + + if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) { + printf("Error: couldn't get an EGL visual config\n"); + exit(1); + } + + assert(config); + assert(num_configs > 0); + + if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) { + printf("Error: eglGetConfigAttrib() failed\n"); + exit(1); + } + + /* The X window visual must match the EGL config */ + visTemplate.visualid = vid; + visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals); + if (!visInfo) { + printf("Error: couldn't get X visual\n"); + exit(1); + } + + /* window attributes */ + attr.background_pixel = 0; + attr.border_pixel = 0; + attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone); + attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask; + mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask; + + win = XCreateWindow( x_dpy, root, 0, 0, width, height, + 0, visInfo->depth, InputOutput, + visInfo->visual, mask, &attr ); + + /* set hints and properties */ + { + XSizeHints sizehints; + sizehints.x = x; + sizehints.y = y; + sizehints.width = width; + sizehints.height = height; + sizehints.flags = USSize | USPosition; + XSetNormalHints(x_dpy, win, &sizehints); + XSetStandardProperties(x_dpy, win, name, name, + None, (char **)NULL, 0, &sizehints); + } + + eglBindAPI(EGL_OPENGL_ES_API); + + ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL ); + if (!ctx) { + printf("Error: eglCreateContext failed\n"); + exit(1); + } + + *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL); + + if (!*surfRet) { + printf("Error: eglCreateWindowSurface failed\n"); + exit(1); + } + + XFree(visInfo); + + *winRet = win; + *ctxRet = ctx; +} + + +static void +usage(void) +{ + printf("Usage:\n"); + printf(" -display <displayname> set the display to run on\n"); +} + + +int +main(int argc, char *argv[]) +{ + const int winWidth = 400, winHeight = 300; + Display *x_dpy; + Window win; + EGLSurface egl_surf; + EGLContext egl_ctx; + EGLDisplay egl_dpy; + char *dpyName = NULL; + EGLint egl_major, egl_minor; + int i; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-display") == 0) { + dpyName = argv[i+1]; + i++; + } + else { + usage(); + return -1; + } + } + + x_dpy = XOpenDisplay(dpyName); + if (!x_dpy) { + printf("Error: couldn't open display %s\n", + dpyName ? dpyName : getenv("DISPLAY")); + return -1; + } + + egl_dpy = eglGetDisplay(x_dpy); + if (!egl_dpy) { + printf("Error: eglGetDisplay() failed\n"); + return -1; + } + + if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) { + printf("Error: eglInitialize() failed\n"); + return -1; + } + + make_x_window(x_dpy, egl_dpy, + "ES info", 0, 0, winWidth, winHeight, + &win, &egl_ctx, &egl_surf); + + /*XMapWindow(x_dpy, win);*/ + if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) { + printf("Error: eglMakeCurrent() failed\n"); + return -1; + } + + info(egl_dpy); + + eglDestroyContext(egl_dpy, egl_ctx); + eglDestroySurface(egl_dpy, egl_surf); + eglTerminate(egl_dpy); + + + XDestroyWindow(x_dpy, win); + XCloseDisplay(x_dpy); + + return 0; +} diff --git a/progs/es1/xegl/msaa.c b/progs/es1/xegl/msaa.c new file mode 100644 index 0000000000..b4c6c63217 --- /dev/null +++ b/progs/es1/xegl/msaa.c @@ -0,0 +1,442 @@ +/* + * Copyright (C) 2008 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. + */ + +/* + * Test MSAA with X/EGL and OpenGL ES 1.x + * Brian Paul + * 15 September 2008 + */ + +#define USE_FULL_GL 0 + + +#include <assert.h> +#include <math.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/keysym.h> +#if USE_FULL_GL +#include <GL/gl.h> /* use full OpenGL */ +#else +#include <GLES/gl.h> /* use OpenGL ES 1.x */ +#include <GLES/glext.h> +#endif +#include <EGL/egl.h> + + + +static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0; +static GLboolean AA = 0*GL_TRUE; + + +static void +draw(void) +{ + float a; + + static const GLfloat verts[4][2] = { + { -1, -.1 }, + { 1, -.1 }, + { -1, .1 }, + { 1, .1 } + }; + static const GLfloat colors[4][4] = { + { 1, 0, 0, 1 }, + { 0, 1, 0, 1 }, + { 0, 0, 1, 1 }, + { 1, 0, 1, 1 } + }; + + if (AA) { + printf("MSAA enabled\n"); + glEnable(GL_MULTISAMPLE); + } + else { + printf("MSAA disabled\n"); + glDisable(GL_MULTISAMPLE); + } + + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + glPushMatrix(); + glRotatef(view_rotx, 1, 0, 0); + glRotatef(view_roty, 0, 1, 0); + glRotatef(view_rotz, 0, 0, 1); + + { + glVertexPointer(2, GL_FLOAT, 0, verts); + glColorPointer(4, GL_FLOAT, 0, colors); + + glEnableClientState(GL_VERTEX_ARRAY); + glEnableClientState(GL_COLOR_ARRAY); + + for (a = 0; a < 360; a += 20.0) { + glPushMatrix(); + + glRotatef(a, 0, 0, 1); + glTranslatef(1.5, 0, 0); + + /* draw triangle */ + glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); + + glPopMatrix(); + } + + glDisableClientState(GL_VERTEX_ARRAY); + glDisableClientState(GL_COLOR_ARRAY); + } + + glPopMatrix(); +} + + +/* new window size or exposure */ +static void +reshape(int width, int height) +{ + GLfloat ary = 3.0; + GLfloat arx = ary * (GLfloat) width / (GLfloat) height; + + glViewport(0, 0, (GLint) width, (GLint) height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); +#ifdef GL_VERSION_ES_CM_1_0 + glOrthof(-arx, arx, -ary, ary, -1.0, 1.0); +#else + glOrtho(-arx, arx, -ary, ary, -1.0, 1.0); +#endif + + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); +} + + + +static void +init(void) +{ + printf("Press 'a' to toggle multisample antialiasing\n"); + printf("Press 'Esc' to exit\n"); +} + + +/* + * Create an RGB, double-buffered X window. + * Return the window and context handles. + */ +static void +make_x_window(Display *x_dpy, EGLDisplay egl_dpy, + const char *name, + int x, int y, int width, int height, + Window *winRet, + EGLContext *ctxRet, + EGLSurface *surfRet) +{ + static const EGLint attribs[] = { + EGL_RED_SIZE, 1, + EGL_GREEN_SIZE, 1, + EGL_BLUE_SIZE, 1, + EGL_DEPTH_SIZE, 1, + EGL_SAMPLES, 1, + EGL_SAMPLE_BUFFERS, 1, + EGL_NONE + }; + + int scrnum; + XSetWindowAttributes attr; + unsigned long mask; + Window root; + Window win; + XVisualInfo *visInfo, visTemplate; + int num_visuals; + EGLContext ctx; + EGLConfig config; + EGLint num_configs; + EGLint vid; + + scrnum = DefaultScreen( x_dpy ); + root = RootWindow( x_dpy, scrnum ); + + if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) { + printf("Error: couldn't get an EGL visual config\n"); + exit(1); + } + + if (num_configs < 1) { + printf("Error: Unable to find multisample pixel format.\n"); + printf("Try running glxinfo to see if your server supports MSAA.\n"); + exit(1); + } + + if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) { + printf("Error: eglGetConfigAttrib() failed\n"); + exit(1); + } + + /* The X window visual must match the EGL config */ + visTemplate.visualid = vid; + visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals); + if (!visInfo) { + printf("Error: couldn't get X visual\n"); + exit(1); + } + + /* window attributes */ + attr.background_pixel = 0; + attr.border_pixel = 0; + attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone); + attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask; + mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask; + + win = XCreateWindow( x_dpy, root, 0, 0, width, height, + 0, visInfo->depth, InputOutput, + visInfo->visual, mask, &attr ); + + /* set hints and properties */ + { + XSizeHints sizehints; + sizehints.x = x; + sizehints.y = y; + sizehints.width = width; + sizehints.height = height; + sizehints.flags = USSize | USPosition; + XSetNormalHints(x_dpy, win, &sizehints); + XSetStandardProperties(x_dpy, win, name, name, + None, (char **)NULL, 0, &sizehints); + } + +#if USE_FULL_GL + eglBindAPI(EGL_OPENGL_API); +#else + eglBindAPI(EGL_OPENGL_ES_API); +#endif + + ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL ); + if (!ctx) { + printf("Error: eglCreateContext failed\n"); + exit(1); + } + + *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL); + + if (!*surfRet) { + printf("Error: eglCreateWindowSurface failed\n"); + exit(1); + } + + XFree(visInfo); + + *winRet = win; + *ctxRet = ctx; +} + + +static void +event_loop(Display *dpy, Window win, + EGLDisplay egl_dpy, EGLSurface egl_surf) +{ + while (1) { + int redraw = 0; + XEvent event; + + XNextEvent(dpy, &event); + + switch (event.type) { + case Expose: + redraw = 1; + break; + case ConfigureNotify: + reshape(event.xconfigure.width, event.xconfigure.height); + break; + case KeyPress: + { + char buffer[10]; + int r, code; + code = XLookupKeysym(&event.xkey, 0); + if (code == XK_Left) { + view_roty += 5.0; + } + else if (code == XK_Right) { + view_roty -= 5.0; + } + else if (code == XK_Up) { + view_rotx += 5.0; + } + else if (code == XK_Down) { + view_rotx -= 5.0; + } + else { + r = XLookupString(&event.xkey, buffer, sizeof(buffer), + NULL, NULL); + if (buffer[0] == 'a') { + AA = !AA; + redraw = 1; + } + else if (buffer[0] == 27) { + /* escape */ + return; + } + } + } + redraw = 1; + break; + default: + ; /*no-op*/ + } + + if (redraw) { + draw(); + eglSwapBuffers(egl_dpy, egl_surf); + } + } +} + + +static void +usage(void) +{ + printf("Usage:\n"); + printf(" -display <displayname> set the display to run on\n"); + printf(" -info display OpenGL renderer info\n"); +} + + +int +main(int argc, char *argv[]) +{ + const int winWidth = 600, winHeight = 600; + Display *x_dpy; + Window win; + EGLSurface egl_surf; + EGLContext egl_ctx; + EGLDisplay egl_dpy; + char *dpyName = NULL; + GLboolean printInfo = GL_FALSE; + EGLint egl_major, egl_minor; + int i; + const char *s; + + static struct { + char *name; + GLenum value; + enum {GetString, GetInteger} type; + } info_items[] = { + {"GL_RENDERER", GL_RENDERER, GetString}, + {"GL_VERSION", GL_VERSION, GetString}, + {"GL_VENDOR", GL_VENDOR, GetString}, + {"GL_EXTENSIONS", GL_EXTENSIONS, GetString}, + {"GL_MAX_PALETTE_MATRICES_OES", GL_MAX_PALETTE_MATRICES_OES, GetInteger}, + {"GL_MAX_VERTEX_UNITS_OES", GL_MAX_VERTEX_UNITS_OES, GetInteger}, + }; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-display") == 0) { + dpyName = argv[i+1]; + i++; + } + else if (strcmp(argv[i], "-info") == 0) { + printInfo = GL_TRUE; + } + else { + usage(); + return -1; + } + } + + x_dpy = XOpenDisplay(dpyName); + if (!x_dpy) { + printf("Error: couldn't open display %s\n", + dpyName ? dpyName : getenv("DISPLAY")); + return -1; + } + + egl_dpy = eglGetDisplay(x_dpy); + if (!egl_dpy) { + printf("Error: eglGetDisplay() failed\n"); + return -1; + } + + if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) { + printf("Error: eglInitialize() failed\n"); + return -1; + } + + s = eglQueryString(egl_dpy, EGL_VERSION); + printf("EGL_VERSION = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_VENDOR); + printf("EGL_VENDOR = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_EXTENSIONS); + printf("EGL_EXTENSIONS = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_CLIENT_APIS); + printf("EGL_CLIENT_APIS = %s\n", s); + + make_x_window(x_dpy, egl_dpy, + "msaa", 0, 0, winWidth, winHeight, + &win, &egl_ctx, &egl_surf); + + XMapWindow(x_dpy, win); + if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) { + printf("Error: eglMakeCurrent() failed\n"); + return -1; + } + + if (printInfo) { + for (i = 0; i < sizeof(info_items)/sizeof(info_items[0]); i++) { + switch (info_items[i].type) { + case GetString: + printf("%s = %s\n", info_items[i].name, (char *)glGetString(info_items[i].value)); + break; + case GetInteger: { + GLint rv = -1; + glGetIntegerv(info_items[i].value, &rv); + printf("%s = %d\n", info_items[i].name, rv); + break; + } + } + } + }; + init(); + + /* Set initial projection/viewing transformation. + * We can't be sure we'll get a ConfigureNotify event when the window + * first appears. + */ + reshape(winWidth, winHeight); + + event_loop(x_dpy, win, egl_dpy, egl_surf); + + eglDestroyContext(egl_dpy, egl_ctx); + eglDestroySurface(egl_dpy, egl_surf); + eglTerminate(egl_dpy); + + + XDestroyWindow(x_dpy, win); + XCloseDisplay(x_dpy); + + return 0; +} diff --git a/progs/es1/xegl/pbuffer.c b/progs/es1/xegl/pbuffer.c new file mode 100644 index 0000000000..011c2af58f --- /dev/null +++ b/progs/es1/xegl/pbuffer.c @@ -0,0 +1,607 @@ +/* + * Copyright (C) 2008 Tunsgten Graphics,Inc. All Rights Reserved. + */ + +/* + * Test EGL Pbuffers + * Brian Paul + * August 2008 + */ + + +#include <assert.h> +#include <math.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/keysym.h> +#include <GLES/gl.h> +#include <GLES/glext.h> +#include <EGL/egl.h> + + + +static int WinWidth = 300, WinHeight = 300; + +static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0; + + +static void +Normal(GLfloat *n, GLfloat nx, GLfloat ny, GLfloat nz) +{ + n[0] = nx; + n[1] = ny; + n[2] = nz; +} + +static void +Vertex(GLfloat *v, GLfloat vx, GLfloat vy, GLfloat vz) +{ + v[0] = vx; + v[1] = vy; + v[2] = vz; +} + +static void +Texcoord(GLfloat *v, GLfloat s, GLfloat t) +{ + v[0] = s; + v[1] = t; +} + + +/* Borrowed from glut, adapted */ +static void +draw_torus(GLfloat r, GLfloat R, GLint nsides, GLint rings) +{ + int i, j; + GLfloat theta, phi, theta1; + GLfloat cosTheta, sinTheta; + GLfloat cosTheta1, sinTheta1; + GLfloat ringDelta, sideDelta; + GLfloat varray[100][3], narray[100][3], tarray[100][2]; + int vcount; + + glVertexPointer(3, GL_FLOAT, 0, varray); + glNormalPointer(GL_FLOAT, 0, narray); + glTexCoordPointer(2, GL_FLOAT, 0, tarray); + glEnableClientState(GL_VERTEX_ARRAY); + glEnableClientState(GL_NORMAL_ARRAY); + glEnableClientState(GL_TEXTURE_COORD_ARRAY); + + ringDelta = 2.0 * M_PI / rings; + sideDelta = 2.0 * M_PI / nsides; + + theta = 0.0; + cosTheta = 1.0; + sinTheta = 0.0; + for (i = rings - 1; i >= 0; i--) { + theta1 = theta + ringDelta; + cosTheta1 = cos(theta1); + sinTheta1 = sin(theta1); + + vcount = 0; /* glBegin(GL_QUAD_STRIP); */ + + phi = 0.0; + for (j = nsides; j >= 0; j--) { + GLfloat s0, s1, t; + GLfloat cosPhi, sinPhi, dist; + + phi += sideDelta; + cosPhi = cos(phi); + sinPhi = sin(phi); + dist = R + r * cosPhi; + + s0 = 20.0 * theta / (2.0 * M_PI); + s1 = 20.0 * theta1 / (2.0 * M_PI); + t = 8.0 * phi / (2.0 * M_PI); + + Normal(narray[vcount], cosTheta1 * cosPhi, -sinTheta1 * cosPhi, sinPhi); + Texcoord(tarray[vcount], s1, t); + Vertex(varray[vcount], cosTheta1 * dist, -sinTheta1 * dist, r * sinPhi); + vcount++; + + Normal(narray[vcount], cosTheta * cosPhi, -sinTheta * cosPhi, sinPhi); + Texcoord(tarray[vcount], s0, t); + Vertex(varray[vcount], cosTheta * dist, -sinTheta * dist, r * sinPhi); + vcount++; + } + + /*glEnd();*/ + assert(vcount <= 100); + glDrawArrays(GL_TRIANGLE_STRIP, 0, vcount); + + theta = theta1; + cosTheta = cosTheta1; + sinTheta = sinTheta1; + } + + glDisableClientState(GL_VERTEX_ARRAY); + glDisableClientState(GL_NORMAL_ARRAY); + glDisableClientState(GL_TEXTURE_COORD_ARRAY); +} + + +static void +draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + glPushMatrix(); + glRotatef(view_rotx, 1, 0, 0); + glRotatef(view_roty, 0, 1, 0); + glRotatef(view_rotz, 0, 0, 1); + glScalef(0.5, 0.5, 0.5); + + draw_torus(1.0, 3.0, 30, 60); + + glPopMatrix(); + + glFinish(); +} + + +/** + * Draw to both the window and pbuffer and compare results. + */ +static void +draw_both(EGLDisplay egl_dpy, EGLSurface egl_surf, EGLSurface egl_pbuf, + EGLContext egl_ctx) +{ + unsigned *wbuf, *pbuf; + int x = 100, y = 110; + int i, dif; + + wbuf = (unsigned *) malloc(WinWidth * WinHeight * 4); + pbuf = (unsigned *) malloc(WinWidth * WinHeight * 4); + + glPixelStorei(GL_PACK_ALIGNMENT, 1); + + /* first draw to window */ + if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) { + printf("Error: eglMakeCurrent(window) failed\n"); + return; + } + draw(); + glReadPixels(0, 0, WinWidth, WinHeight, GL_RGBA, GL_UNSIGNED_BYTE, wbuf); + printf("Window[%d,%d] = 0x%08x\n", x, y, wbuf[y*WinWidth+x]); + + /* then draw to pbuffer */ + if (!eglMakeCurrent(egl_dpy, egl_pbuf, egl_pbuf, egl_ctx)) { + printf("Error: eglMakeCurrent(pbuffer) failed\n"); + return; + } + draw(); + glReadPixels(0, 0, WinWidth, WinHeight, GL_RGBA, GL_UNSIGNED_BYTE, pbuf); + printf("Pbuffer[%d,%d] = 0x%08x\n", x, y, pbuf[y*WinWidth+x]); + + eglSwapBuffers(egl_dpy, egl_surf); + + /* compare renderings */ + for (dif = i = 0; i < WinWidth * WinHeight; i++) { + if (wbuf[i] != pbuf[i]) { + dif = 1; + break; + } + } + + if (dif) + printf("Difference at %d: 0x%08x vs. 0x%08x\n", i, wbuf[i], pbuf[i]); + else + printf("Window rendering matches Pbuffer rendering!\n"); + + free(wbuf); + free(pbuf); +} + + +/* new window size or exposure */ +static void +reshape(int width, int height) +{ + GLfloat ar = (GLfloat) width / (GLfloat) height; + + WinWidth = width; + WinHeight = height; + + glViewport(0, 0, (GLint) width, (GLint) height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + +#ifdef GL_VERSION_ES_CM_1_0 + glFrustumf(-ar, ar, -1, 1, 5.0, 60.0); +#else + glFrustum(-ar, ar, -1, 1, 5.0, 60.0); +#endif + + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glTranslatef(0.0, 0.0, -15.0); +} + + +static void +make_texture(void) +{ +#define SZ 64 + GLenum Filter = GL_LINEAR; + GLubyte image[SZ][SZ][4]; + GLuint i, j; + + for (i = 0; i < SZ; i++) { + for (j = 0; j < SZ; j++) { + GLfloat d = (i - SZ/2) * (i - SZ/2) + (j - SZ/2) * (j - SZ/2); + d = sqrt(d); + if (d < SZ/3) { + 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] = 127; + image[i][j][1] = 127; + image[i][j][2] = 127; + image[i][j][3] = 255; + } + } + } + + glActiveTexture(GL_TEXTURE0); /* unit 0 */ + glBindTexture(GL_TEXTURE_2D, 42); + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, SZ, SZ, 0, + GL_RGBA, GL_UNSIGNED_BYTE, image); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); +#undef SZ +} + + + +static void +init(void) +{ + static const GLfloat red[4] = {1, 0, 0, 0}; + static const GLfloat white[4] = {1.0, 1.0, 1.0, 1.0}; + static const GLfloat diffuse[4] = {0.7, 0.7, 0.7, 1.0}; + static const GLfloat specular[4] = {0.001, 0.001, 0.001, 1.0}; + static const GLfloat pos[4] = {20, 20, 50, 1}; + + glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, red); + glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, white); + glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 9.0); + + glEnable(GL_LIGHTING); + glEnable(GL_LIGHT0); + glLightfv(GL_LIGHT0, GL_POSITION, pos); + glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse); + glLightfv(GL_LIGHT0, GL_SPECULAR, specular); + + glClearColor(0.4, 0.4, 0.4, 0.0); + glEnable(GL_DEPTH_TEST); + + make_texture(); + glEnable(GL_TEXTURE_2D); +} + + +/* + * Create an RGB, double-buffered X window. + * Return the window and context handles. + */ +static void +make_x_window(Display *x_dpy, EGLDisplay egl_dpy, + const char *name, + int x, int y, int width, int height, + Window *winRet, + EGLContext *ctxRet, + EGLSurface *surfRet) +{ + static const EGLint attribs[] = { + EGL_RED_SIZE, 1, + EGL_GREEN_SIZE, 1, + EGL_BLUE_SIZE, 1, + EGL_DEPTH_SIZE, 1, + EGL_NONE + }; + + int scrnum; + XSetWindowAttributes attr; + unsigned long mask; + Window root; + Window win; + XVisualInfo *visInfo, visTemplate; + int num_visuals; + EGLContext ctx; + EGLConfig config; + EGLint num_configs; + EGLint vid; + + scrnum = DefaultScreen( x_dpy ); + root = RootWindow( x_dpy, scrnum ); + + if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) { + printf("Error: couldn't get an EGL visual config\n"); + exit(1); + } + + assert(config); + assert(num_configs > 0); + + if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) { + printf("Error: eglGetConfigAttrib() failed\n"); + exit(1); + } + + /* The X window visual must match the EGL config */ + visTemplate.visualid = vid; + visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals); + if (!visInfo) { + printf("Error: couldn't get X visual\n"); + exit(1); + } + + /* window attributes */ + attr.background_pixel = 0; + attr.border_pixel = 0; + attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone); + attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask; + mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask; + + win = XCreateWindow( x_dpy, root, 0, 0, width, height, + 0, visInfo->depth, InputOutput, + visInfo->visual, mask, &attr ); + + /* set hints and properties */ + { + XSizeHints sizehints; + sizehints.x = x; + sizehints.y = y; + sizehints.width = width; + sizehints.height = height; + sizehints.flags = USSize | USPosition; + XSetNormalHints(x_dpy, win, &sizehints); + XSetStandardProperties(x_dpy, win, name, name, + None, (char **)NULL, 0, &sizehints); + } + + eglBindAPI(EGL_OPENGL_ES_API); + + ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL ); + if (!ctx) { + printf("Error: eglCreateContext failed\n"); + exit(1); + } + + *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL); + + if (!*surfRet) { + printf("Error: eglCreateWindowSurface failed\n"); + exit(1); + } + + XFree(visInfo); + + *winRet = win; + *ctxRet = ctx; +} + + +static EGLSurface +make_pbuffer(Display *x_dpy, EGLDisplay egl_dpy, int width, int height) +{ + static const EGLint config_attribs[] = { + EGL_RED_SIZE, 1, + EGL_GREEN_SIZE, 1, + EGL_BLUE_SIZE, 1, + EGL_DEPTH_SIZE, 1, + EGL_NONE + }; + EGLConfig config; + EGLSurface pbuf; + EGLint num_configs; + EGLint pbuf_attribs[5]; + + pbuf_attribs[0] = EGL_WIDTH; + pbuf_attribs[1] = width; + pbuf_attribs[2] = EGL_HEIGHT; + pbuf_attribs[3] = height; + pbuf_attribs[4] = EGL_NONE; + + if (!eglChooseConfig( egl_dpy, config_attribs, &config, 1, &num_configs)) { + printf("Error: couldn't get an EGL config for pbuffer\n"); + exit(1); + } + + pbuf = eglCreatePbufferSurface(egl_dpy, config, pbuf_attribs); + + return pbuf; +} + + +static void +event_loop(Display *dpy, Window win, + EGLDisplay egl_dpy, EGLSurface egl_surf, EGLSurface egl_pbuf, + EGLContext egl_ctx) +{ + int anim = 0; + + while (1) { + int redraw = 0; + + if (!anim || XPending(dpy)) { + XEvent event; + XNextEvent(dpy, &event); + + switch (event.type) { + case Expose: + redraw = 1; + break; + case ConfigureNotify: + if (event.xconfigure.window == win) + reshape(event.xconfigure.width, event.xconfigure.height); + break; + case KeyPress: + { + char buffer[10]; + int r, code; + code = XLookupKeysym(&event.xkey, 0); + if (code == XK_Left) { + view_roty += 5.0; + } + else if (code == XK_Right) { + view_roty -= 5.0; + } + else if (code == XK_Up) { + view_rotx += 5.0; + } + else if (code == XK_Down) { + view_rotx -= 5.0; + } + else { + r = XLookupString(&event.xkey, buffer, sizeof(buffer), + NULL, NULL); + if (buffer[0] == ' ') { + anim = !anim; + } + else if (buffer[0] == 27) { + /* escape */ + return; + } + } + } + redraw = 1; + break; + default: + ; /*no-op*/ + } + } + + if (anim) { + view_rotx += 1.0; + view_roty += 2.0; + redraw = 1; + } + + if (redraw) { + draw_both(egl_dpy, egl_surf, egl_pbuf, egl_ctx); + } + } +} + + +static void +usage(void) +{ + printf("Usage:\n"); + printf(" -display <displayname> set the display to run on\n"); + printf(" -info display OpenGL renderer info\n"); +} + + +int +main(int argc, char *argv[]) +{ + Display *x_dpy; + Window win; + EGLSurface egl_surf, egl_pbuf; + EGLContext egl_ctx; + EGLDisplay egl_dpy; + char *dpyName = NULL; + GLboolean printInfo = GL_FALSE; + EGLint egl_major, egl_minor; + int i; + const char *s; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-display") == 0) { + dpyName = argv[i+1]; + i++; + } + else if (strcmp(argv[i], "-info") == 0) { + printInfo = GL_TRUE; + } + else { + usage(); + return -1; + } + } + + x_dpy = XOpenDisplay(dpyName); + if (!x_dpy) { + printf("Error: couldn't open display %s\n", + dpyName ? dpyName : getenv("DISPLAY")); + return -1; + } + + egl_dpy = eglGetDisplay(x_dpy); + if (!egl_dpy) { + printf("Error: eglGetDisplay() failed\n"); + return -1; + } + + if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) { + printf("Error: eglInitialize() failed\n"); + return -1; + } + + s = eglQueryString(egl_dpy, EGL_VERSION); + printf("EGL_VERSION = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_VENDOR); + printf("EGL_VENDOR = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_EXTENSIONS); + printf("EGL_EXTENSIONS = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_CLIENT_APIS); + printf("EGL_CLIENT_APIS = %s\n", s); + + make_x_window(x_dpy, egl_dpy, + "pbuffer", 0, 0, WinWidth, WinHeight, + &win, &egl_ctx, &egl_surf); + + egl_pbuf = make_pbuffer(x_dpy, egl_dpy, WinWidth, WinHeight); + if (!egl_pbuf) { + printf("Error: eglCreatePBufferSurface() failed\n"); + return -1; + } + + XMapWindow(x_dpy, win); + if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) { + printf("Error: eglMakeCurrent() failed\n"); + return -1; + } + + if (printInfo) { + 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)); + printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS)); + } + + init(); + + /* Set initial projection/viewing transformation. + * We can't be sure we'll get a ConfigureNotify event when the window + * first appears. + */ + reshape(WinWidth, WinHeight); + + event_loop(x_dpy, win, egl_dpy, egl_surf, egl_pbuf, egl_ctx); + + eglDestroyContext(egl_dpy, egl_ctx); + eglDestroySurface(egl_dpy, egl_surf); + eglTerminate(egl_dpy); + + + XDestroyWindow(x_dpy, win); + XCloseDisplay(x_dpy); + + return 0; +} diff --git a/progs/es1/xegl/render_tex.c b/progs/es1/xegl/render_tex.c new file mode 100644 index 0000000000..0d1027b712 --- /dev/null +++ b/progs/es1/xegl/render_tex.c @@ -0,0 +1,657 @@ +/* + * Copyright (C) 2008 Tunsgten Graphics,Inc. All Rights Reserved. + */ + +/* + * Test EGL render to texture. + * Brian Paul + * August 2008 + */ + + +#include <assert.h> +#include <math.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/keysym.h> +#include <GLES/gl.h> +#include <GLES/glext.h> +#include <EGL/egl.h> + + +static int TexWidth = 256, TexHeight = 256; + +static int WinWidth = 300, WinHeight = 300; + +static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0; + +static GLuint DotTexture, RenderTexture; + + +static void +Normal(GLfloat *n, GLfloat nx, GLfloat ny, GLfloat nz) +{ + n[0] = nx; + n[1] = ny; + n[2] = nz; +} + +static void +Vertex(GLfloat *v, GLfloat vx, GLfloat vy, GLfloat vz) +{ + v[0] = vx; + v[1] = vy; + v[2] = vz; +} + +static void +Texcoord(GLfloat *v, GLfloat s, GLfloat t) +{ + v[0] = s; + v[1] = t; +} + + +/* Borrowed from glut, adapted */ +static void +draw_torus(GLfloat r, GLfloat R, GLint nsides, GLint rings) +{ + int i, j; + GLfloat theta, phi, theta1; + GLfloat cosTheta, sinTheta; + GLfloat cosTheta1, sinTheta1; + GLfloat ringDelta, sideDelta; + GLfloat varray[100][3], narray[100][3], tarray[100][2]; + int vcount; + + glVertexPointer(3, GL_FLOAT, 0, varray); + glNormalPointer(GL_FLOAT, 0, narray); + glTexCoordPointer(2, GL_FLOAT, 0, tarray); + glEnableClientState(GL_VERTEX_ARRAY); + glEnableClientState(GL_NORMAL_ARRAY); + glEnableClientState(GL_TEXTURE_COORD_ARRAY); + + ringDelta = 2.0 * M_PI / rings; + sideDelta = 2.0 * M_PI / nsides; + + theta = 0.0; + cosTheta = 1.0; + sinTheta = 0.0; + for (i = rings - 1; i >= 0; i--) { + theta1 = theta + ringDelta; + cosTheta1 = cos(theta1); + sinTheta1 = sin(theta1); + + vcount = 0; /* glBegin(GL_QUAD_STRIP); */ + + phi = 0.0; + for (j = nsides; j >= 0; j--) { + GLfloat s0, s1, t; + GLfloat cosPhi, sinPhi, dist; + + phi += sideDelta; + cosPhi = cos(phi); + sinPhi = sin(phi); + dist = R + r * cosPhi; + + s0 = 20.0 * theta / (2.0 * M_PI); + s1 = 20.0 * theta1 / (2.0 * M_PI); + t = 8.0 * phi / (2.0 * M_PI); + + Normal(narray[vcount], cosTheta1 * cosPhi, -sinTheta1 * cosPhi, sinPhi); + Texcoord(tarray[vcount], s1, t); + Vertex(varray[vcount], cosTheta1 * dist, -sinTheta1 * dist, r * sinPhi); + vcount++; + + Normal(narray[vcount], cosTheta * cosPhi, -sinTheta * cosPhi, sinPhi); + Texcoord(tarray[vcount], s0, t); + Vertex(varray[vcount], cosTheta * dist, -sinTheta * dist, r * sinPhi); + vcount++; + } + + /*glEnd();*/ + assert(vcount <= 100); + glDrawArrays(GL_TRIANGLE_STRIP, 0, vcount); + + theta = theta1; + cosTheta = cosTheta1; + sinTheta = sinTheta1; + } + + glDisableClientState(GL_VERTEX_ARRAY); + glDisableClientState(GL_NORMAL_ARRAY); + glDisableClientState(GL_TEXTURE_COORD_ARRAY); +} + + +static void +draw_torus_to_texture(void) +{ + glViewport(0, 0, TexWidth, TexHeight); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glFrustumf(-1, 1, -1, 1, 5.0, 60.0); + + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glTranslatef(0.0, 0.0, -15.0); + + glClearColor(0.4, 0.4, 0.4, 0.0); + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + glBindTexture(GL_TEXTURE_2D, DotTexture); + + glEnable(GL_LIGHTING); + + glPushMatrix(); + glRotatef(view_roty, 0, 1, 0); + glScalef(0.5, 0.5, 0.5); + + draw_torus(1.0, 3.0, 30, 60); + + glPopMatrix(); + + glDisable(GL_LIGHTING); + +#if 0 + glBindTexture(GL_TEXTURE_2D, RenderTexture); + glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, TexWidth, TexHeight); +#endif + + glFinish(); +} + + +static void +draw_textured_quad(void) +{ + GLfloat ar = (GLfloat) WinWidth / (GLfloat) WinHeight; + + glViewport(0, 0, WinWidth, WinHeight); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glFrustumf(-ar, ar, -1, 1, 5.0, 60.0); + + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glTranslatef(0.0, 0.0, -8.0); + + glClearColor(0.4, 0.4, 1.0, 0.0); + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + glBindTexture(GL_TEXTURE_2D, RenderTexture); + + glPushMatrix(); + glRotatef(view_rotx, 1, 0, 0); + glRotatef(view_rotz, 0, 0, 1); + + { + static const GLfloat texcoord[4][2] = { + { 0, 0 }, { 1, 0 }, { 0, 1 }, { 1, 1 } + }; + static const GLfloat vertex[4][2] = { + { -1, -1 }, { 1, -1 }, { -1, 1 }, { 1, 1 } + }; + + glVertexPointer(2, GL_FLOAT, 0, vertex); + glTexCoordPointer(2, GL_FLOAT, 0, texcoord); + glEnableClientState(GL_VERTEX_ARRAY); + glEnableClientState(GL_TEXTURE_COORD_ARRAY); + + glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); + + glDisableClientState(GL_VERTEX_ARRAY); + glDisableClientState(GL_TEXTURE_COORD_ARRAY); + } + + glPopMatrix(); +} + + + +static void +draw(EGLDisplay egl_dpy, EGLSurface egl_surf, EGLSurface egl_pbuf, + EGLContext egl_ctx) +{ + /*printf("Begin draw\n");*/ + + /* first draw torus to pbuffer /texture */ +#if 01 + if (!eglMakeCurrent(egl_dpy, egl_pbuf, egl_pbuf, egl_ctx)) { +#else + if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) { +#endif + printf("Error: eglMakeCurrent(pbuf) failed\n"); + return; + } + glBindTexture(GL_TEXTURE_2D, RenderTexture); + eglBindTexImage(egl_dpy, egl_pbuf, EGL_BACK_BUFFER); + draw_torus_to_texture(); + eglReleaseTexImage(egl_dpy, egl_pbuf, EGL_BACK_BUFFER); + + /* draw textured quad to window */ + if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) { + printf("Error: eglMakeCurrent(pbuffer) failed\n"); + return; + } + draw_textured_quad(); + eglSwapBuffers(egl_dpy, egl_surf); + + /*printf("End draw\n");*/ +} + + + +static void +make_dot_texture(void) +{ +#define SZ 64 + GLenum Filter = GL_LINEAR; + GLubyte image[SZ][SZ][4]; + GLuint i, j; + + for (i = 0; i < SZ; i++) { + for (j = 0; j < SZ; j++) { + GLfloat d = (i - SZ/2) * (i - SZ/2) + (j - SZ/2) * (j - SZ/2); + d = sqrt(d); + if (d < SZ/3) { + 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] = 127; + image[i][j][1] = 127; + image[i][j][2] = 127; + image[i][j][3] = 255; + } + } + } + + glGenTextures(1, &DotTexture); + glBindTexture(GL_TEXTURE_2D, DotTexture); + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, SZ, SZ, 0, + GL_RGBA, GL_UNSIGNED_BYTE, image); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); +#undef SZ +} + + +static void +make_render_texture(void) +{ + GLenum Filter = GL_LINEAR; + glGenTextures(1, &RenderTexture); + glBindTexture(GL_TEXTURE_2D, RenderTexture); + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, TexWidth, TexHeight, 0, + GL_RGBA, GL_UNSIGNED_BYTE, NULL); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); +} + + +static void +init(void) +{ + static const GLfloat red[4] = {1, 0, 0, 0}; + static const GLfloat white[4] = {1.0, 1.0, 1.0, 1.0}; + static const GLfloat diffuse[4] = {0.7, 0.7, 0.7, 1.0}; + static const GLfloat specular[4] = {0.001, 0.001, 0.001, 1.0}; + static const GLfloat pos[4] = {20, 20, 50, 1}; + + glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, red); + glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, white); + glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 9.0); + + glEnable(GL_LIGHT0); + glLightfv(GL_LIGHT0, GL_POSITION, pos); + glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse); + glLightfv(GL_LIGHT0, GL_SPECULAR, specular); + + glEnable(GL_DEPTH_TEST); + + make_dot_texture(); + make_render_texture(); + + printf("DotTexture=%u RenderTexture=%u\n", DotTexture, RenderTexture); + + glEnable(GL_TEXTURE_2D); +} + + +/* + * Create an RGB, double-buffered X window. + * Return the window and context handles. + */ +static void +make_x_window(Display *x_dpy, EGLDisplay egl_dpy, + const char *name, + int x, int y, int width, int height, + Window *winRet, + EGLContext *ctxRet, + EGLSurface *surfRet) +{ + static const EGLint attribs[] = { + EGL_RED_SIZE, 1, + EGL_GREEN_SIZE, 1, + EGL_BLUE_SIZE, 1, + EGL_DEPTH_SIZE, 1, + EGL_NONE + }; + + int scrnum; + XSetWindowAttributes attr; + unsigned long mask; + Window root; + Window win; + XVisualInfo *visInfo, visTemplate; + int num_visuals; + EGLContext ctx; + EGLConfig config; + EGLint num_configs; + EGLint vid; + + scrnum = DefaultScreen( x_dpy ); + root = RootWindow( x_dpy, scrnum ); + + if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) { + printf("Error: couldn't get an EGL visual config\n"); + exit(1); + } + + assert(config); + assert(num_configs > 0); + + if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) { + printf("Error: eglGetConfigAttrib() failed\n"); + exit(1); + } + + /* The X window visual must match the EGL config */ + visTemplate.visualid = vid; + visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals); + if (!visInfo) { + printf("Error: couldn't get X visual\n"); + exit(1); + } + + /* window attributes */ + attr.background_pixel = 0; + attr.border_pixel = 0; + attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone); + attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask; + mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask; + + win = XCreateWindow( x_dpy, root, 0, 0, width, height, + 0, visInfo->depth, InputOutput, + visInfo->visual, mask, &attr ); + + /* set hints and properties */ + { + XSizeHints sizehints; + sizehints.x = x; + sizehints.y = y; + sizehints.width = width; + sizehints.height = height; + sizehints.flags = USSize | USPosition; + XSetNormalHints(x_dpy, win, &sizehints); + XSetStandardProperties(x_dpy, win, name, name, + None, (char **)NULL, 0, &sizehints); + } + + eglBindAPI(EGL_OPENGL_ES_API); + + ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL ); + if (!ctx) { + printf("Error: eglCreateContext failed\n"); + exit(1); + } + + *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL); + + if (!*surfRet) { + printf("Error: eglCreateWindowSurface failed\n"); + exit(1); + } + + XFree(visInfo); + + *winRet = win; + *ctxRet = ctx; +} + + +static EGLSurface +make_pbuffer(Display *x_dpy, EGLDisplay egl_dpy, int width, int height) +{ + static const EGLint config_attribs[] = { + EGL_RED_SIZE, 1, + EGL_GREEN_SIZE, 1, + EGL_BLUE_SIZE, 1, + EGL_DEPTH_SIZE, 1, + EGL_NONE + }; + EGLConfig config; + EGLSurface pbuf; + EGLint num_configs; + EGLint pbuf_attribs[15]; + int i = 0; + + pbuf_attribs[i++] = EGL_WIDTH; + pbuf_attribs[i++] = width; + pbuf_attribs[i++] = EGL_HEIGHT; + pbuf_attribs[i++] = height; + pbuf_attribs[i++] = EGL_TEXTURE_FORMAT; + pbuf_attribs[i++] = EGL_TEXTURE_RGBA; + pbuf_attribs[i++] = EGL_TEXTURE_TARGET; + pbuf_attribs[i++] = EGL_TEXTURE_2D; + pbuf_attribs[i++] = EGL_MIPMAP_TEXTURE; + pbuf_attribs[i++] = EGL_FALSE; + pbuf_attribs[i++] = EGL_NONE; + assert(i <= 15); + + if (!eglChooseConfig( egl_dpy, config_attribs, &config, 1, &num_configs)) { + printf("Error: couldn't get an EGL config for pbuffer\n"); + exit(1); + } + + pbuf = eglCreatePbufferSurface(egl_dpy, config, pbuf_attribs); + + return pbuf; +} + + +static void +event_loop(Display *dpy, Window win, + EGLDisplay egl_dpy, EGLSurface egl_surf, EGLSurface egl_pbuf, + EGLContext egl_ctx) +{ + int anim = 0; + + while (1) { + int redraw = 0; + + if (!anim || XPending(dpy)) { + XEvent event; + XNextEvent(dpy, &event); + + switch (event.type) { + case Expose: + redraw = 1; + break; + case ConfigureNotify: + if (event.xconfigure.window == win) { + WinWidth = event.xconfigure.width; + WinHeight = event.xconfigure.height; + } + break; + case KeyPress: + { + char buffer[10]; + int r, code; + code = XLookupKeysym(&event.xkey, 0); + if (code == XK_Left) { + view_roty += 5.0; + } + else if (code == XK_Right) { + view_roty -= 5.0; + } + else if (code == XK_Up) { + view_rotx += 5.0; + } + else if (code == XK_Down) { + view_rotx -= 5.0; + } + else { + r = XLookupString(&event.xkey, buffer, sizeof(buffer), + NULL, NULL); + if (buffer[0] == ' ') { + anim = !anim; + } + else if (buffer[0] == 'z') { + view_rotz += 5.0; + } + else if (buffer[0] == 'Z') { + view_rotz -= 5.0; + } + else if (buffer[0] == 27) { + /* escape */ + return; + } + } + } + redraw = 1; + break; + default: + ; /*no-op*/ + } + } + + if (anim) { + view_rotx += 1.0; + view_roty += 2.0; + redraw = 1; + } + + if (redraw) { + draw(egl_dpy, egl_surf, egl_pbuf, egl_ctx); + } + } +} + + +static void +usage(void) +{ + printf("Usage:\n"); + printf(" -display <displayname> set the display to run on\n"); + printf(" -info display OpenGL renderer info\n"); +} + + +int +main(int argc, char *argv[]) +{ + Display *x_dpy; + Window win; + EGLSurface egl_surf, egl_pbuf; + EGLContext egl_ctx; + EGLDisplay egl_dpy; + char *dpyName = NULL; + GLboolean printInfo = GL_FALSE; + EGLint egl_major, egl_minor; + int i; + const char *s; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-display") == 0) { + dpyName = argv[i+1]; + i++; + } + else if (strcmp(argv[i], "-info") == 0) { + printInfo = GL_TRUE; + } + else { + usage(); + return -1; + } + } + + x_dpy = XOpenDisplay(dpyName); + if (!x_dpy) { + printf("Error: couldn't open display %s\n", + dpyName ? dpyName : getenv("DISPLAY")); + return -1; + } + + egl_dpy = eglGetDisplay(x_dpy); + if (!egl_dpy) { + printf("Error: eglGetDisplay() failed\n"); + return -1; + } + + if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) { + printf("Error: eglInitialize() failed\n"); + return -1; + } + + s = eglQueryString(egl_dpy, EGL_VERSION); + printf("EGL_VERSION = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_VENDOR); + printf("EGL_VENDOR = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_EXTENSIONS); + printf("EGL_EXTENSIONS = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_CLIENT_APIS); + printf("EGL_CLIENT_APIS = %s\n", s); + + make_x_window(x_dpy, egl_dpy, + "render_tex", 0, 0, WinWidth, WinHeight, + &win, &egl_ctx, &egl_surf); + + egl_pbuf = make_pbuffer(x_dpy, egl_dpy, TexWidth, TexHeight); + if (!egl_pbuf) { + printf("Error: eglCreatePBufferSurface() failed\n"); + return -1; + } + + XMapWindow(x_dpy, win); + if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) { + printf("Error: eglMakeCurrent() failed\n"); + return -1; + } + + if (printInfo) { + 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)); + printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS)); + } + + init(); + + event_loop(x_dpy, win, egl_dpy, egl_surf, egl_pbuf, egl_ctx); + + eglDestroyContext(egl_dpy, egl_ctx); + eglDestroySurface(egl_dpy, egl_surf); + eglTerminate(egl_dpy); + + + XDestroyWindow(x_dpy, win); + XCloseDisplay(x_dpy); + + return 0; +} diff --git a/progs/es1/xegl/torus.c b/progs/es1/xegl/torus.c new file mode 100644 index 0000000000..634d12641c --- /dev/null +++ b/progs/es1/xegl/torus.c @@ -0,0 +1,509 @@ +/* + * Copyright (C) 2008 Tunsgten Graphics,Inc. All Rights Reserved. + */ + +/* + * Draw a lit, textured torus with X/EGL and OpenGL ES 1.x + * Brian Paul + * July 2008 + */ + + +#include <assert.h> +#include <math.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/keysym.h> +#include <GLES/gl.h> +#include <GLES/glext.h> +#include <EGL/egl.h> + + + + +static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0; + + +static void +Normal(GLfloat *n, GLfloat nx, GLfloat ny, GLfloat nz) +{ + n[0] = nx; + n[1] = ny; + n[2] = nz; +} + +static void +Vertex(GLfloat *v, GLfloat vx, GLfloat vy, GLfloat vz) +{ + v[0] = vx; + v[1] = vy; + v[2] = vz; +} + +static void +Texcoord(GLfloat *v, GLfloat s, GLfloat t) +{ + v[0] = s; + v[1] = t; +} + + +/* Borrowed from glut, adapted */ +static void +draw_torus(GLfloat r, GLfloat R, GLint nsides, GLint rings) +{ + int i, j; + GLfloat theta, phi, theta1; + GLfloat cosTheta, sinTheta; + GLfloat cosTheta1, sinTheta1; + GLfloat ringDelta, sideDelta; + GLfloat varray[100][3], narray[100][3], tarray[100][2]; + int vcount; + + glVertexPointer(3, GL_FLOAT, 0, varray); + glNormalPointer(GL_FLOAT, 0, narray); + glTexCoordPointer(2, GL_FLOAT, 0, tarray); + glEnableClientState(GL_VERTEX_ARRAY); + glEnableClientState(GL_NORMAL_ARRAY); + glEnableClientState(GL_TEXTURE_COORD_ARRAY); + + ringDelta = 2.0 * M_PI / rings; + sideDelta = 2.0 * M_PI / nsides; + + theta = 0.0; + cosTheta = 1.0; + sinTheta = 0.0; + for (i = rings - 1; i >= 0; i--) { + theta1 = theta + ringDelta; + cosTheta1 = cos(theta1); + sinTheta1 = sin(theta1); + + vcount = 0; /* glBegin(GL_QUAD_STRIP); */ + + phi = 0.0; + for (j = nsides; j >= 0; j--) { + GLfloat s0, s1, t; + GLfloat cosPhi, sinPhi, dist; + + phi += sideDelta; + cosPhi = cos(phi); + sinPhi = sin(phi); + dist = R + r * cosPhi; + + s0 = 20.0 * theta / (2.0 * M_PI); + s1 = 20.0 * theta1 / (2.0 * M_PI); + t = 8.0 * phi / (2.0 * M_PI); + + Normal(narray[vcount], cosTheta1 * cosPhi, -sinTheta1 * cosPhi, sinPhi); + Texcoord(tarray[vcount], s1, t); + Vertex(varray[vcount], cosTheta1 * dist, -sinTheta1 * dist, r * sinPhi); + vcount++; + + Normal(narray[vcount], cosTheta * cosPhi, -sinTheta * cosPhi, sinPhi); + Texcoord(tarray[vcount], s0, t); + Vertex(varray[vcount], cosTheta * dist, -sinTheta * dist, r * sinPhi); + vcount++; + } + + /*glEnd();*/ + assert(vcount <= 100); + glDrawArrays(GL_TRIANGLE_STRIP, 0, vcount); + + theta = theta1; + cosTheta = cosTheta1; + sinTheta = sinTheta1; + } + + glDisableClientState(GL_VERTEX_ARRAY); + glDisableClientState(GL_NORMAL_ARRAY); + glDisableClientState(GL_TEXTURE_COORD_ARRAY); +} + + +static void +draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + glPushMatrix(); + glRotatef(view_rotx, 1, 0, 0); + glRotatef(view_roty, 0, 1, 0); + glRotatef(view_rotz, 0, 0, 1); + glScalef(0.5, 0.5, 0.5); + + draw_torus(1.0, 3.0, 30, 60); + + glPopMatrix(); +} + + +/* new window size or exposure */ +static void +reshape(int width, int height) +{ + GLfloat ar = (GLfloat) width / (GLfloat) height; + + glViewport(0, 0, (GLint) width, (GLint) height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + +#ifdef GL_VERSION_ES_CM_1_0 + glFrustumf(-ar, ar, -1, 1, 5.0, 60.0); +#else + glFrustum(-ar, ar, -1, 1, 5.0, 60.0); +#endif + + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glTranslatef(0.0, 0.0, -15.0); +} + + +static void +make_texture(void) +{ +#define SZ 64 + GLenum Filter = GL_LINEAR; + GLubyte image[SZ][SZ][4]; + GLuint i, j; + + for (i = 0; i < SZ; i++) { + for (j = 0; j < SZ; j++) { + GLfloat d = (i - SZ/2) * (i - SZ/2) + (j - SZ/2) * (j - SZ/2); + d = sqrt(d); + if (d < SZ/3) { + 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] = 127; + image[i][j][1] = 127; + image[i][j][2] = 127; + image[i][j][3] = 255; + } + } + } + + glActiveTexture(GL_TEXTURE0); /* unit 0 */ + glBindTexture(GL_TEXTURE_2D, 42); + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, SZ, SZ, 0, + GL_RGBA, GL_UNSIGNED_BYTE, image); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); +#undef SZ +} + + + +static void +init(void) +{ + static const GLfloat red[4] = {1, 0, 0, 0}; + static const GLfloat white[4] = {1.0, 1.0, 1.0, 1.0}; + static const GLfloat diffuse[4] = {0.7, 0.7, 0.7, 1.0}; + static const GLfloat specular[4] = {0.001, 0.001, 0.001, 1.0}; + static const GLfloat pos[4] = {20, 20, 50, 1}; + + glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, red); + glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, white); + glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 9.0); + + glEnable(GL_LIGHTING); + glEnable(GL_LIGHT0); + glLightfv(GL_LIGHT0, GL_POSITION, pos); + glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse); + glLightfv(GL_LIGHT0, GL_SPECULAR, specular); + + glClearColor(0.4, 0.4, 0.4, 0.0); + glEnable(GL_DEPTH_TEST); + + make_texture(); + glEnable(GL_TEXTURE_2D); +} + + +/* + * Create an RGB, double-buffered X window. + * Return the window and context handles. + */ +static void +make_x_window(Display *x_dpy, EGLDisplay egl_dpy, + const char *name, + int x, int y, int width, int height, + Window *winRet, + EGLContext *ctxRet, + EGLSurface *surfRet) +{ + static const EGLint attribs[] = { + EGL_RED_SIZE, 1, + EGL_GREEN_SIZE, 1, + EGL_BLUE_SIZE, 1, + EGL_DEPTH_SIZE, 1, + EGL_NONE + }; + + int scrnum; + XSetWindowAttributes attr; + unsigned long mask; + Window root; + Window win; + XVisualInfo *visInfo, visTemplate; + int num_visuals; + EGLContext ctx; + EGLConfig config; + EGLint num_configs; + EGLint vid; + + scrnum = DefaultScreen( x_dpy ); + root = RootWindow( x_dpy, scrnum ); + + if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) { + printf("Error: couldn't get an EGL visual config\n"); + exit(1); + } + + assert(config); + assert(num_configs > 0); + + if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) { + printf("Error: eglGetConfigAttrib() failed\n"); + exit(1); + } + + /* The X window visual must match the EGL config */ + visTemplate.visualid = vid; + visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals); + if (!visInfo) { + printf("Error: couldn't get X visual\n"); + exit(1); + } + + /* window attributes */ + attr.background_pixel = 0; + attr.border_pixel = 0; + attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone); + attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask; + mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask; + + win = XCreateWindow( x_dpy, root, 0, 0, width, height, + 0, visInfo->depth, InputOutput, + visInfo->visual, mask, &attr ); + + /* set hints and properties */ + { + XSizeHints sizehints; + sizehints.x = x; + sizehints.y = y; + sizehints.width = width; + sizehints.height = height; + sizehints.flags = USSize | USPosition; + XSetNormalHints(x_dpy, win, &sizehints); + XSetStandardProperties(x_dpy, win, name, name, + None, (char **)NULL, 0, &sizehints); + } + + eglBindAPI(EGL_OPENGL_ES_API); + + ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL ); + if (!ctx) { + printf("Error: eglCreateContext failed\n"); + exit(1); + } + + *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL); + + if (!*surfRet) { + printf("Error: eglCreateWindowSurface failed\n"); + exit(1); + } + + XFree(visInfo); + + *winRet = win; + *ctxRet = ctx; +} + + +static void +event_loop(Display *dpy, Window win, + EGLDisplay egl_dpy, EGLSurface egl_surf) +{ + int anim = 1; + + while (1) { + int redraw = 0; + + if (!anim || XPending(dpy)) { + XEvent event; + XNextEvent(dpy, &event); + + switch (event.type) { + case Expose: + redraw = 1; + break; + case ConfigureNotify: + reshape(event.xconfigure.width, event.xconfigure.height); + break; + case KeyPress: + { + char buffer[10]; + int r, code; + code = XLookupKeysym(&event.xkey, 0); + if (code == XK_Left) { + view_roty += 5.0; + } + else if (code == XK_Right) { + view_roty -= 5.0; + } + else if (code == XK_Up) { + view_rotx += 5.0; + } + else if (code == XK_Down) { + view_rotx -= 5.0; + } + else { + r = XLookupString(&event.xkey, buffer, sizeof(buffer), + NULL, NULL); + if (buffer[0] == ' ') { + anim = !anim; + } + else if (buffer[0] == 27) { + /* escape */ + return; + } + } + } + redraw = 1; + break; + default: + ; /*no-op*/ + } + } + + if (anim) { + view_rotx += 1.0; + view_roty += 2.0; + redraw = 1; + } + + if (redraw) { + draw(); + eglSwapBuffers(egl_dpy, egl_surf); + } + } +} + + +static void +usage(void) +{ + printf("Usage:\n"); + printf(" -display <displayname> set the display to run on\n"); + printf(" -info display OpenGL renderer info\n"); +} + + +int +main(int argc, char *argv[]) +{ + const int winWidth = 300, winHeight = 300; + Display *x_dpy; + Window win; + EGLSurface egl_surf; + EGLContext egl_ctx; + EGLDisplay egl_dpy; + char *dpyName = NULL; + GLboolean printInfo = GL_FALSE; + EGLint egl_major, egl_minor; + int i; + const char *s; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-display") == 0) { + dpyName = argv[i+1]; + i++; + } + else if (strcmp(argv[i], "-info") == 0) { + printInfo = GL_TRUE; + } + else { + usage(); + return -1; + } + } + + x_dpy = XOpenDisplay(dpyName); + if (!x_dpy) { + printf("Error: couldn't open display %s\n", + dpyName ? dpyName : getenv("DISPLAY")); + return -1; + } + + egl_dpy = eglGetDisplay(x_dpy); + if (!egl_dpy) { + printf("Error: eglGetDisplay() failed\n"); + return -1; + } + + if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) { + printf("Error: eglInitialize() failed\n"); + return -1; + } + + s = eglQueryString(egl_dpy, EGL_VERSION); + printf("EGL_VERSION = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_VENDOR); + printf("EGL_VENDOR = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_EXTENSIONS); + printf("EGL_EXTENSIONS = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_CLIENT_APIS); + printf("EGL_CLIENT_APIS = %s\n", s); + + make_x_window(x_dpy, egl_dpy, + "torus", 0, 0, winWidth, winHeight, + &win, &egl_ctx, &egl_surf); + + XMapWindow(x_dpy, win); + if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) { + printf("Error: eglMakeCurrent() failed\n"); + return -1; + } + + if (printInfo) { + 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)); + printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS)); + } + + init(); + + /* Set initial projection/viewing transformation. + * We can't be sure we'll get a ConfigureNotify event when the window + * first appears. + */ + reshape(winWidth, winHeight); + + event_loop(x_dpy, win, egl_dpy, egl_surf); + + eglDestroyContext(egl_dpy, egl_ctx); + eglDestroySurface(egl_dpy, egl_surf); + eglTerminate(egl_dpy); + + + XDestroyWindow(x_dpy, win); + XCloseDisplay(x_dpy); + + return 0; +} diff --git a/progs/es1/xegl/tri.c b/progs/es1/xegl/tri.c new file mode 100644 index 0000000000..42a978207c --- /dev/null +++ b/progs/es1/xegl/tri.c @@ -0,0 +1,470 @@ +/* + * Copyright (C) 2008 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. + */ + +/* + * Draw a triangle with X/EGL and OpenGL ES 1.x + * Brian Paul + * 5 June 2008 + */ + +#define USE_FULL_GL 0 + +#define USE_FIXED_POINT 0 + + +#include <assert.h> +#include <math.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/keysym.h> +#if USE_FULL_GL +#include <GL/gl.h> /* use full OpenGL */ +#else +#include <GLES/gl.h> /* use OpenGL ES 1.x */ +#include <GLES/glext.h> +#endif +#include <EGL/egl.h> + + +#define FLOAT_TO_FIXED(X) ((X) * 65535.0) + + + +static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0; + + +static void +draw(void) +{ +#if USE_FIXED_POINT + static const GLfixed verts[3][2] = { + { -65536, -65536 }, + { 65536, -65536 }, + { 0, 65536 } + }; + static const GLfixed colors[3][4] = { + { 65536, 0, 0, 65536 }, + { 0, 65536, 0 , 65536}, + { 0, 0, 65536 , 65536} + }; +#else + static const GLfloat verts[3][2] = { + { -1, -1 }, + { 1, -1 }, + { 0, 1 } + }; + static const GLfloat colors[3][4] = { + { 1, 0, 0, 1 }, + { 0, 1, 0, 1 }, + { 0, 0, 1, 1 } + }; +#endif + + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + glPushMatrix(); + glRotatef(view_rotx, 1, 0, 0); + glRotatef(view_roty, 0, 1, 0); + glRotatef(view_rotz, 0, 0, 1); + + { +#if USE_FIXED_POINT + glVertexPointer(2, GL_FIXED, 0, verts); + glColorPointer(4, GL_FIXED, 0, colors); +#else + glVertexPointer(2, GL_FLOAT, 0, verts); + glColorPointer(4, GL_FLOAT, 0, colors); +#endif + glEnableClientState(GL_VERTEX_ARRAY); + glEnableClientState(GL_COLOR_ARRAY); + + /* draw triangle */ + glDrawArrays(GL_TRIANGLES, 0, 3); + + /* draw some points */ + glPointSizex(FLOAT_TO_FIXED(15.5)); + glDrawArrays(GL_POINTS, 0, 3); + + glDisableClientState(GL_VERTEX_ARRAY); + glDisableClientState(GL_COLOR_ARRAY); + } + + if (0) { + /* test code */ + GLfixed size; + glGetFixedv(GL_POINT_SIZE, &size); + printf("GL_POINT_SIZE = 0x%x %f\n", size, size / 65536.0); + } + + glPopMatrix(); +} + + +/* new window size or exposure */ +static void +reshape(int width, int height) +{ + GLfloat ar = (GLfloat) width / (GLfloat) height; + + glViewport(0, 0, (GLint) width, (GLint) height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); +#ifdef GL_VERSION_ES_CM_1_0 + glFrustumf(-ar, ar, -1, 1, 5.0, 60.0); +#else + glFrustum(-ar, ar, -1, 1, 5.0, 60.0); +#endif + + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glTranslatef(0.0, 0.0, -10.0); +} + + +static void +test_query_matrix(void) +{ + PFNGLQUERYMATRIXXOESPROC procQueryMatrixx; + typedef void (*voidproc)(); + GLfixed mantissa[16]; + GLint exponent[16]; + GLbitfield rv; + int i; + + procQueryMatrixx = (PFNGLQUERYMATRIXXOESPROC) eglGetProcAddress("glQueryMatrixxOES"); + assert(procQueryMatrixx); + /* Actually try out this one */ + rv = (*procQueryMatrixx)(mantissa, exponent); + for (i = 0; i < 16; i++) { + if (rv & (1<<i)) { + printf("matrix[%d] invalid\n", i); + } + else { + printf("matrix[%d] = %f * 2^(%d)\n", i, mantissa[i]/65536.0, exponent[i]); + } + } + assert(!eglGetProcAddress("glFoo")); +} + + +static void +init(void) +{ + glClearColor(0.4, 0.4, 0.4, 0.0); + + if (0) + test_query_matrix(); +} + + +/* + * Create an RGB, double-buffered X window. + * Return the window and context handles. + */ +static void +make_x_window(Display *x_dpy, EGLDisplay egl_dpy, + const char *name, + int x, int y, int width, int height, + Window *winRet, + EGLContext *ctxRet, + EGLSurface *surfRet) +{ + static const EGLint attribs[] = { + EGL_RED_SIZE, 1, + EGL_GREEN_SIZE, 1, + EGL_BLUE_SIZE, 1, + EGL_DEPTH_SIZE, 1, + EGL_NONE + }; + + int scrnum; + XSetWindowAttributes attr; + unsigned long mask; + Window root; + Window win; + XVisualInfo *visInfo, visTemplate; + int num_visuals; + EGLContext ctx; + EGLConfig config; + EGLint num_configs; + EGLint vid; + + scrnum = DefaultScreen( x_dpy ); + root = RootWindow( x_dpy, scrnum ); + + if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) { + printf("Error: couldn't get an EGL visual config\n"); + exit(1); + } + + assert(config); + assert(num_configs > 0); + + if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) { + printf("Error: eglGetConfigAttrib() failed\n"); + exit(1); + } + + /* The X window visual must match the EGL config */ + visTemplate.visualid = vid; + visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals); + if (!visInfo) { + printf("Error: couldn't get X visual\n"); + exit(1); + } + + /* window attributes */ + attr.background_pixel = 0; + attr.border_pixel = 0; + attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone); + attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask; + mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask; + + win = XCreateWindow( x_dpy, root, 0, 0, width, height, + 0, visInfo->depth, InputOutput, + visInfo->visual, mask, &attr ); + + /* set hints and properties */ + { + XSizeHints sizehints; + sizehints.x = x; + sizehints.y = y; + sizehints.width = width; + sizehints.height = height; + sizehints.flags = USSize | USPosition; + XSetNormalHints(x_dpy, win, &sizehints); + XSetStandardProperties(x_dpy, win, name, name, + None, (char **)NULL, 0, &sizehints); + } + +#if USE_FULL_GL + eglBindAPI(EGL_OPENGL_API); +#else + eglBindAPI(EGL_OPENGL_ES_API); +#endif + + ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL ); + if (!ctx) { + printf("Error: eglCreateContext failed\n"); + exit(1); + } + + *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL); + + if (!*surfRet) { + printf("Error: eglCreateWindowSurface failed\n"); + exit(1); + } + + XFree(visInfo); + + *winRet = win; + *ctxRet = ctx; +} + + +static void +event_loop(Display *dpy, Window win, + EGLDisplay egl_dpy, EGLSurface egl_surf) +{ + while (1) { + int redraw = 0; + XEvent event; + + XNextEvent(dpy, &event); + + switch (event.type) { + case Expose: + redraw = 1; + break; + case ConfigureNotify: + reshape(event.xconfigure.width, event.xconfigure.height); + break; + case KeyPress: + { + char buffer[10]; + int r, code; + code = XLookupKeysym(&event.xkey, 0); + if (code == XK_Left) { + view_roty += 5.0; + } + else if (code == XK_Right) { + view_roty -= 5.0; + } + else if (code == XK_Up) { + view_rotx += 5.0; + } + else if (code == XK_Down) { + view_rotx -= 5.0; + } + else { + r = XLookupString(&event.xkey, buffer, sizeof(buffer), + NULL, NULL); + if (buffer[0] == 27) { + /* escape */ + return; + } + } + } + redraw = 1; + break; + default: + ; /*no-op*/ + } + + if (redraw) { + draw(); + eglSwapBuffers(egl_dpy, egl_surf); + } + } +} + + +static void +usage(void) +{ + printf("Usage:\n"); + printf(" -display <displayname> set the display to run on\n"); + printf(" -info display OpenGL renderer info\n"); +} + + +int +main(int argc, char *argv[]) +{ + const int winWidth = 300, winHeight = 300; + Display *x_dpy; + Window win; + EGLSurface egl_surf; + EGLContext egl_ctx; + EGLDisplay egl_dpy; + char *dpyName = NULL; + GLboolean printInfo = GL_FALSE; + EGLint egl_major, egl_minor; + int i; + const char *s; + + static struct { + char *name; + GLenum value; + enum {GetString, GetInteger} type; + } info_items[] = { + {"GL_RENDERER", GL_RENDERER, GetString}, + {"GL_VERSION", GL_VERSION, GetString}, + {"GL_VENDOR", GL_VENDOR, GetString}, + {"GL_EXTENSIONS", GL_EXTENSIONS, GetString}, + {"GL_MAX_PALETTE_MATRICES_OES", GL_MAX_PALETTE_MATRICES_OES, GetInteger}, + {"GL_MAX_VERTEX_UNITS_OES", GL_MAX_VERTEX_UNITS_OES, GetInteger}, + }; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-display") == 0) { + dpyName = argv[i+1]; + i++; + } + else if (strcmp(argv[i], "-info") == 0) { + printInfo = GL_TRUE; + } + else { + usage(); + return -1; + } + } + + x_dpy = XOpenDisplay(dpyName); + if (!x_dpy) { + printf("Error: couldn't open display %s\n", + dpyName ? dpyName : getenv("DISPLAY")); + return -1; + } + + egl_dpy = eglGetDisplay(x_dpy); + if (!egl_dpy) { + printf("Error: eglGetDisplay() failed\n"); + return -1; + } + + if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) { + printf("Error: eglInitialize() failed\n"); + return -1; + } + + s = eglQueryString(egl_dpy, EGL_VERSION); + printf("EGL_VERSION = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_VENDOR); + printf("EGL_VENDOR = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_EXTENSIONS); + printf("EGL_EXTENSIONS = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_CLIENT_APIS); + printf("EGL_CLIENT_APIS = %s\n", s); + + make_x_window(x_dpy, egl_dpy, + "OpenGL ES 1.x tri", 0, 0, winWidth, winHeight, + &win, &egl_ctx, &egl_surf); + + XMapWindow(x_dpy, win); + if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) { + printf("Error: eglMakeCurrent() failed\n"); + return -1; + } + + if (printInfo) { + for (i = 0; i < sizeof(info_items)/sizeof(info_items[0]); i++) { + switch (info_items[i].type) { + case GetString: + printf("%s = %s\n", info_items[i].name, (char *)glGetString(info_items[i].value)); + break; + case GetInteger: { + GLint rv = -1; + glGetIntegerv(info_items[i].value, &rv); + printf("%s = %d\n", info_items[i].name, rv); + break; + } + } + } + }; + init(); + + /* Set initial projection/viewing transformation. + * We can't be sure we'll get a ConfigureNotify event when the window + * first appears. + */ + reshape(winWidth, winHeight); + + event_loop(x_dpy, win, egl_dpy, egl_surf); + + eglDestroyContext(egl_dpy, egl_ctx); + eglDestroySurface(egl_dpy, egl_surf); + eglTerminate(egl_dpy); + + + XDestroyWindow(x_dpy, win); + XCloseDisplay(x_dpy); + + return 0; +} diff --git a/progs/es1/xegl/two_win.c b/progs/es1/xegl/two_win.c new file mode 100644 index 0000000000..4785e5304d --- /dev/null +++ b/progs/es1/xegl/two_win.c @@ -0,0 +1,433 @@ +/* + * Copyright (C) 2008 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. + */ + +/* + * Test drawing to two windows. + * Brian Paul + * August 2008 + */ + + +#include <assert.h> +#include <math.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/keysym.h> +#include <GLES/gl.h> +#include <GLES/glext.h> +#include <EGL/egl.h> + + +static int WinWidth[2] = {150, 300}, WinHeight[2] = {150, 300}; + + +static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0; + + +/* new window size or exposure */ +static void +reshape(int width, int height) +{ + GLfloat ar = (GLfloat) width / (GLfloat) height; + + glViewport(0, 0, (GLint) width, (GLint) height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); +#ifdef GL_VERSION_ES_CM_1_0 + glFrustumf(-ar, ar, -1, 1, 5.0, 60.0); +#else + glFrustum(-ar, ar, -1, 1, 5.0, 60.0); +#endif + + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glTranslatef(0.0, 0.0, -10.0); +} + + +static void +draw(int win) +{ + static const GLfloat verts[3][2] = { + { -1, -1 }, + { 1, -1 }, + { 0, 1 } + }; + static const GLfloat colors[3][4] = { + { 1, 0, 0, 1 }, + { 0, 1, 0, 1 }, + { 0, 0, 1, 1 } + }; + + assert(win == 0 || win == 1); + + reshape(WinWidth[win], WinHeight[win]); + + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + glPushMatrix(); + glRotatef(view_rotx, 1, 0, 0); + glRotatef(view_roty, 0, 1, 0); + glRotatef(view_rotz, 0, 0, 1); + + /* draw triangle */ + { + glVertexPointer(2, GL_FLOAT, 0, verts); + glColorPointer(4, GL_FLOAT, 0, colors); + + glEnableClientState(GL_VERTEX_ARRAY); + glEnableClientState(GL_COLOR_ARRAY); + + glDrawArrays(GL_TRIANGLES, 0, 3); + + glDisableClientState(GL_VERTEX_ARRAY); + glDisableClientState(GL_COLOR_ARRAY); + } + + glPopMatrix(); +} + + +static void +init(void) +{ + glClearColor(0.4, 0.4, 0.4, 0.0); +} + + +/* + * Create an RGB, double-buffered X window. + * Return the window and context handles. + */ +static void +make_x_window(Display *x_dpy, EGLDisplay egl_dpy, + const char *name, + int x, int y, int width, int height, + Window *winRet, + EGLContext *ctxRet, + EGLSurface *surfRet) +{ + static const EGLint attribs[] = { + EGL_RED_SIZE, 1, + EGL_GREEN_SIZE, 1, + EGL_BLUE_SIZE, 1, + EGL_DEPTH_SIZE, 1, + EGL_NONE + }; + + int scrnum; + XSetWindowAttributes attr; + unsigned long mask; + Window root; + Window win; + XVisualInfo *visInfo, visTemplate; + int num_visuals; + EGLContext ctx; + EGLConfig config; + EGLint num_configs; + EGLint vid; + + scrnum = DefaultScreen( x_dpy ); + root = RootWindow( x_dpy, scrnum ); + + if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) { + printf("Error: couldn't get an EGL visual config\n"); + exit(1); + } + + assert(config); + assert(num_configs > 0); + + if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) { + printf("Error: eglGetConfigAttrib() failed\n"); + exit(1); + } + + /* The X window visual must match the EGL config */ + visTemplate.visualid = vid; + visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals); + if (!visInfo) { + printf("Error: couldn't get X visual\n"); + exit(1); + } + + /* window attributes */ + attr.background_pixel = 0; + attr.border_pixel = 0; + attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone); + attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask; + mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask; + + win = XCreateWindow( x_dpy, root, x, y, width, height, + 0, visInfo->depth, InputOutput, + visInfo->visual, mask, &attr ); + + /* set hints and properties */ + { + XSizeHints sizehints; + sizehints.x = x; + sizehints.y = y; + sizehints.width = width; + sizehints.height = height; + sizehints.flags = USSize | USPosition; + XSetNormalHints(x_dpy, win, &sizehints); + XSetStandardProperties(x_dpy, win, name, name, + None, (char **)NULL, 0, &sizehints); + } + +#if USE_FULL_GL + eglBindAPI(EGL_OPENGL_API); +#else + eglBindAPI(EGL_OPENGL_ES_API); +#endif + + if (ctxRet) { + ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL ); + if (!ctx) { + printf("Error: eglCreateContext failed\n"); + exit(1); + } + *ctxRet = ctx; + } + + *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL); + + if (!*surfRet) { + printf("Error: eglCreateWindowSurface failed\n"); + exit(1); + } + + XFree(visInfo); + + *winRet = win; +} + + +static void +event_loop(Display *dpy, Window win1, Window win2, + EGLDisplay egl_dpy, EGLSurface egl_surf1, EGLSurface egl_surf2, + EGLContext egl_ctx) +{ + while (1) { + int redraw = 0; + int win; + XEvent event; + + XNextEvent(dpy, &event); + + switch (event.type) { + case Expose: + redraw = 1; + break; + case ConfigureNotify: + if (event.xconfigure.window == win1) + win = 0; + else + win = 1; + WinWidth[win] = event.xconfigure.width; + WinHeight[win] = event.xconfigure.height; + break; + case KeyPress: + { + char buffer[10]; + int r, code; + code = XLookupKeysym(&event.xkey, 0); + if (code == XK_Left) { + view_roty += 5.0; + } + else if (code == XK_Right) { + view_roty -= 5.0; + } + else if (code == XK_Up) { + view_rotx += 5.0; + } + else if (code == XK_Down) { + view_rotx -= 5.0; + } + else { + r = XLookupString(&event.xkey, buffer, sizeof(buffer), + NULL, NULL); + if (buffer[0] == 27) { + /* escape */ + return; + } + } + } + redraw = 1; + break; + default: + ; /*no-op*/ + } + + if (redraw) { + /* win 1 */ + if (!eglMakeCurrent(egl_dpy, egl_surf1, egl_surf1, egl_ctx)) { + printf("Error: eglMakeCurrent(1) failed\n"); + return; + } + draw(0); + eglSwapBuffers(egl_dpy, egl_surf1); + + /* win 2 */ + if (!eglMakeCurrent(egl_dpy, egl_surf2, egl_surf2, egl_ctx)) { + printf("Error: eglMakeCurrent(2) failed\n"); + return; + } + draw(1); + eglSwapBuffers(egl_dpy, egl_surf2); + } + } +} + + +static void +usage(void) +{ + printf("Usage:\n"); + printf(" -display <displayname> set the display to run on\n"); + printf(" -info display OpenGL renderer info\n"); +} + + +int +main(int argc, char *argv[]) +{ + Display *x_dpy; + Window win1, win2; + EGLSurface egl_surf1, egl_surf2; + EGLContext egl_ctx; + EGLDisplay egl_dpy; + char *dpyName = NULL; + GLboolean printInfo = GL_FALSE; + EGLint egl_major, egl_minor; + int i; + const char *s; + + static struct { + char *name; + GLenum value; + enum {GetString, GetInteger} type; + } info_items[] = { + {"GL_RENDERER", GL_RENDERER, GetString}, + {"GL_VERSION", GL_VERSION, GetString}, + {"GL_VENDOR", GL_VENDOR, GetString}, + {"GL_EXTENSIONS", GL_EXTENSIONS, GetString}, + {"GL_MAX_PALETTE_MATRICES_OES", GL_MAX_PALETTE_MATRICES_OES, GetInteger}, + {"GL_MAX_VERTEX_UNITS_OES", GL_MAX_VERTEX_UNITS_OES, GetInteger}, + }; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-display") == 0) { + dpyName = argv[i+1]; + i++; + } + else if (strcmp(argv[i], "-info") == 0) { + printInfo = GL_TRUE; + } + else { + usage(); + return -1; + } + } + + x_dpy = XOpenDisplay(dpyName); + if (!x_dpy) { + printf("Error: couldn't open display %s\n", + dpyName ? dpyName : getenv("DISPLAY")); + return -1; + } + + egl_dpy = eglGetDisplay(x_dpy); + if (!egl_dpy) { + printf("Error: eglGetDisplay() failed\n"); + return -1; + } + + if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) { + printf("Error: eglInitialize() failed\n"); + return -1; + } + + s = eglQueryString(egl_dpy, EGL_VERSION); + printf("EGL_VERSION = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_VENDOR); + printf("EGL_VENDOR = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_EXTENSIONS); + printf("EGL_EXTENSIONS = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_CLIENT_APIS); + printf("EGL_CLIENT_APIS = %s\n", s); + + make_x_window(x_dpy, egl_dpy, + "xegl_two_win #1", 0, 0, WinWidth[0], WinHeight[0], + &win1, &egl_ctx, &egl_surf1); + + make_x_window(x_dpy, egl_dpy, + "xegl_two_win #2", WinWidth[0] + 50, 0, + WinWidth[1], WinHeight[1], + &win2, NULL, &egl_surf2); + + XMapWindow(x_dpy, win1); + + XMapWindow(x_dpy, win2); + + if (!eglMakeCurrent(egl_dpy, egl_surf1, egl_surf1, egl_ctx)) { + printf("Error: eglMakeCurrent() failed\n"); + return -1; + } + + if (printInfo) { + for (i = 0; i < sizeof(info_items)/sizeof(info_items[0]); i++) { + switch (info_items[i].type) { + case GetString: + printf("%s = %s\n", info_items[i].name, (char *)glGetString(info_items[i].value)); + break; + case GetInteger: { + GLint rv = -1; + glGetIntegerv(info_items[i].value, &rv); + printf("%s = %d\n", info_items[i].name, rv); + break; + } + } + } + }; + + init(); + + event_loop(x_dpy, win1, win2, egl_dpy, egl_surf1, egl_surf2, egl_ctx); + + eglDestroyContext(egl_dpy, egl_ctx); + eglDestroySurface(egl_dpy, egl_surf1); + eglDestroySurface(egl_dpy, egl_surf2); + eglTerminate(egl_dpy); + + XDestroyWindow(x_dpy, win1); + XDestroyWindow(x_dpy, win2); + XCloseDisplay(x_dpy); + + return 0; +} diff --git a/progs/es2/xegl/Makefile b/progs/es2/xegl/Makefile new file mode 100644 index 0000000000..88bb0127f8 --- /dev/null +++ b/progs/es2/xegl/Makefile @@ -0,0 +1,51 @@ +# progs/es2/xegl/Makefile + +TOP = ../../.. +include $(TOP)/configs/current + + +INCLUDE_DIRS = \ + -I$(TOP)/include \ + +HEADERS = $(TOP)/include/GLES/egl.h + + +ES2_LIB_DEPS = \ + $(TOP)/$(LIB_DIR)/libEGL.so \ + $(TOP)/$(LIB_DIR)/libGLESv2.so + + +ES2_LIBS = \ + -L$(TOP)/$(LIB_DIR) -lEGL \ + -L$(TOP)/$(LIB_DIR) -lGLESv2 $(LIBDRM_LIB) -lX11 + +PROGRAMS = \ + es2_info \ + tri + + +.c.o: + $(CC) -c $(INCLUDE_DIRS) $(CFLAGS) $< -o $@ + + + +default: $(PROGRAMS) + + + +es2_info.c: + cp ../../es1/xegl/es1_info.c es2_info.c + +es2_info: es2_info.o $(ES2_LIB_DEPS) + $(CC) $(CFLAGS) es2_info.o $(ES2_LIBS) -o $@ + +tri: tri.o $(ES2_LIB_DEPS) + $(CC) $(CFLAGS) tri.o $(ES2_LIBS) -o $@ + + + +clean: + rm -f *.o *~ + rm -f $(PROGRAMS) + rm -f es2_info.c + diff --git a/progs/es2/xegl/tri.c b/progs/es2/xegl/tri.c new file mode 100644 index 0000000000..eb52b10620 --- /dev/null +++ b/progs/es2/xegl/tri.c @@ -0,0 +1,514 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + **************************************************************************/ + +/* + * Draw a triangle with X/EGL and OpenGL ES 2.x + */ + +#define USE_FULL_GL 0 + + + +#include <assert.h> +#include <math.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/keysym.h> +#if USE_FULL_GL +#include <GL/gl.h> /* use full OpenGL */ +#else +#include <GLES2/gl2.h> /* use OpenGL ES 2.x */ +#endif +#include <EGL/egl.h> + + +#define FLOAT_TO_FIXED(X) ((X) * 65535.0) + + + +static GLfloat view_rotx = 0.0, view_roty = 0.0; + +static GLint u_matrix = -1; +static GLint attr_pos = 0, attr_color = 1; + + +static void +make_z_rot_matrix(GLfloat angle, GLfloat *m) +{ + float c = cos(angle * M_PI / 180.0); + float s = sin(angle * M_PI / 180.0); + int i; + for (i = 0; i < 16; i++) + m[i] = 0.0; + m[0] = m[5] = m[10] = m[15] = 1.0; + + m[0] = c; + m[1] = s; + m[4] = -s; + m[5] = c; +} + +static void +make_scale_matrix(GLfloat xs, GLfloat ys, GLfloat zs, GLfloat *m) +{ + int i; + for (i = 0; i < 16; i++) + m[i] = 0.0; + m[0] = xs; + m[5] = ys; + m[10] = zs; + m[15] = 1.0; +} + + +static void +mul_matrix(GLfloat *prod, const GLfloat *a, const GLfloat *b) +{ +#define A(row,col) a[(col<<2)+row] +#define B(row,col) b[(col<<2)+row] +#define P(row,col) p[(col<<2)+row] + GLfloat p[16]; + GLint i; + for (i = 0; i < 4; i++) { + const GLfloat ai0=A(i,0), ai1=A(i,1), ai2=A(i,2), ai3=A(i,3); + P(i,0) = ai0 * B(0,0) + ai1 * B(1,0) + ai2 * B(2,0) + ai3 * B(3,0); + P(i,1) = ai0 * B(0,1) + ai1 * B(1,1) + ai2 * B(2,1) + ai3 * B(3,1); + P(i,2) = ai0 * B(0,2) + ai1 * B(1,2) + ai2 * B(2,2) + ai3 * B(3,2); + P(i,3) = ai0 * B(0,3) + ai1 * B(1,3) + ai2 * B(2,3) + ai3 * B(3,3); + } + memcpy(prod, p, sizeof(p)); +#undef A +#undef B +#undef PROD +} + + +static void +draw(void) +{ + static const GLfloat verts[3][2] = { + { -1, -1 }, + { 1, -1 }, + { 0, 1 } + }; + static const GLfloat colors[3][3] = { + { 1, 0, 0 }, + { 0, 1, 0 }, + { 0, 0, 1 } + }; + GLfloat mat[16], rot[16], scale[16]; + + /* Set modelview/projection matrix */ + make_z_rot_matrix(view_rotx, rot); + make_scale_matrix(0.5, 0.5, 0.5, scale); + mul_matrix(mat, rot, scale); + glUniformMatrix4fv(u_matrix, 1, GL_FALSE, mat); + + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + { + glVertexAttribPointer(attr_pos, 2, GL_FLOAT, GL_FALSE, 0, verts); + glVertexAttribPointer(attr_color, 3, GL_FLOAT, GL_FALSE, 0, colors); + glEnableVertexAttribArray(attr_pos); + glEnableVertexAttribArray(attr_color); + + glDrawArrays(GL_TRIANGLES, 0, 3); + + glDisableVertexAttribArray(attr_pos); + glDisableVertexAttribArray(attr_color); + } +} + + +/* new window size or exposure */ +static void +reshape(int width, int height) +{ + glViewport(0, 0, (GLint) width, (GLint) height); +} + + +static void +create_shaders(void) +{ + static const char *fragShaderText = + "varying vec4 v_color;\n" + "void main() {\n" + " gl_FragColor = v_color;\n" + "}\n"; + static const char *vertShaderText = + "uniform mat4 modelviewProjection;\n" + "attribute vec4 pos;\n" + "attribute vec4 color;\n" + "varying vec4 v_color;\n" + "void main() {\n" + " gl_Position = modelviewProjection * pos;\n" + " v_color = color;\n" + "}\n"; + + GLuint fragShader, vertShader, program; + GLint stat; + + fragShader = glCreateShader(GL_FRAGMENT_SHADER); + glShaderSource(fragShader, 1, (const char **) &fragShaderText, NULL); + glCompileShader(fragShader); + glGetShaderiv(fragShader, GL_COMPILE_STATUS, &stat); + if (!stat) { + printf("Error: fragment shader did not compile!\n"); + exit(1); + } + + vertShader = glCreateShader(GL_VERTEX_SHADER); + glShaderSource(vertShader, 1, (const char **) &vertShaderText, NULL); + glCompileShader(vertShader); + glGetShaderiv(vertShader, GL_COMPILE_STATUS, &stat); + if (!stat) { + printf("Error: vertex shader did not compile!\n"); + exit(1); + } + + program = glCreateProgram(); + glAttachShader(program, fragShader); + glAttachShader(program, vertShader); + glLinkProgram(program); + + glGetProgramiv(program, GL_LINK_STATUS, &stat); + if (!stat) { + char log[1000]; + GLsizei len; + glGetProgramInfoLog(program, 1000, &len, log); + printf("Error: linking:\n%s\n", log); + exit(1); + } + + glUseProgram(program); + + if (1) { + /* test setting attrib locations */ + glBindAttribLocation(program, attr_pos, "pos"); + glBindAttribLocation(program, attr_color, "color"); + glLinkProgram(program); /* needed to put attribs into effect */ + } + else { + /* test automatic attrib locations */ + attr_pos = glGetAttribLocation(program, "pos"); + attr_color = glGetAttribLocation(program, "color"); + } + + u_matrix = glGetUniformLocation(program, "modelviewProjection"); + printf("Uniform modelviewProjection at %d\n", u_matrix); + printf("Attrib pos at %d\n", attr_pos); + printf("Attrib color at %d\n", attr_color); +} + + +static void +init(void) +{ + typedef void (*proc)(); + +#if 1 /* test code */ + proc p = eglGetProcAddress("glMapBufferOES"); + assert(p); +#endif + + glClearColor(0.4, 0.4, 0.4, 0.0); + + create_shaders(); +} + + +/* + * Create an RGB, double-buffered X window. + * Return the window and context handles. + */ +static void +make_x_window(Display *x_dpy, EGLDisplay egl_dpy, + const char *name, + int x, int y, int width, int height, + Window *winRet, + EGLContext *ctxRet, + EGLSurface *surfRet) +{ + static const EGLint attribs[] = { + EGL_RED_SIZE, 1, + EGL_GREEN_SIZE, 1, + EGL_BLUE_SIZE, 1, + EGL_DEPTH_SIZE, 1, + EGL_NONE + }; + static const EGLint ctx_attribs[] = { + EGL_CONTEXT_CLIENT_VERSION, 2, + EGL_NONE + }; + int scrnum; + XSetWindowAttributes attr; + unsigned long mask; + Window root; + Window win; + XVisualInfo *visInfo, visTemplate; + int num_visuals; + EGLContext ctx; + EGLConfig config; + EGLint num_configs; + EGLint vid; + + scrnum = DefaultScreen( x_dpy ); + root = RootWindow( x_dpy, scrnum ); + + if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) { + printf("Error: couldn't get an EGL visual config\n"); + exit(1); + } + + assert(config); + assert(num_configs > 0); + + if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) { + printf("Error: eglGetConfigAttrib() failed\n"); + exit(1); + } + + /* The X window visual must match the EGL config */ + visTemplate.visualid = vid; + visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals); + if (!visInfo) { + printf("Error: couldn't get X visual\n"); + exit(1); + } + + /* window attributes */ + attr.background_pixel = 0; + attr.border_pixel = 0; + attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone); + attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask; + mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask; + + win = XCreateWindow( x_dpy, root, 0, 0, width, height, + 0, visInfo->depth, InputOutput, + visInfo->visual, mask, &attr ); + + /* set hints and properties */ + { + XSizeHints sizehints; + sizehints.x = x; + sizehints.y = y; + sizehints.width = width; + sizehints.height = height; + sizehints.flags = USSize | USPosition; + XSetNormalHints(x_dpy, win, &sizehints); + XSetStandardProperties(x_dpy, win, name, name, + None, (char **)NULL, 0, &sizehints); + } + +#if USE_FULL_GL /* XXX fix this when eglBindAPI() works */ + eglBindAPI(EGL_OPENGL_API); +#else + eglBindAPI(EGL_OPENGL_ES_API); +#endif + + ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, ctx_attribs ); + if (!ctx) { + printf("Error: eglCreateContext failed\n"); + exit(1); + } + + /* test eglQueryContext() */ + { + EGLint val; + eglQueryContext(egl_dpy, ctx, EGL_CONTEXT_CLIENT_VERSION, &val); + assert(val == 2); + } + + *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL); + if (!*surfRet) { + printf("Error: eglCreateWindowSurface failed\n"); + exit(1); + } + + { + EGLint val; + eglQuerySurface(egl_dpy, *surfRet, EGL_WIDTH, &val); + assert(val == width); + eglQuerySurface(egl_dpy, *surfRet, EGL_HEIGHT, &val); + assert(val == height); + eglQuerySurface(egl_dpy, *surfRet, EGL_SURFACE_TYPE, &val); + assert(val == EGL_WINDOW_BIT); + } + + XFree(visInfo); + + *winRet = win; + *ctxRet = ctx; +} + + +static void +event_loop(Display *dpy, Window win, + EGLDisplay egl_dpy, EGLSurface egl_surf) +{ + while (1) { + int redraw = 0; + XEvent event; + + XNextEvent(dpy, &event); + + switch (event.type) { + case Expose: + redraw = 1; + break; + case ConfigureNotify: + reshape(event.xconfigure.width, event.xconfigure.height); + break; + case KeyPress: + { + char buffer[10]; + int r, code; + code = XLookupKeysym(&event.xkey, 0); + if (code == XK_Left) { + view_roty += 5.0; + } + else if (code == XK_Right) { + view_roty -= 5.0; + } + else if (code == XK_Up) { + view_rotx += 5.0; + } + else if (code == XK_Down) { + view_rotx -= 5.0; + } + else { + r = XLookupString(&event.xkey, buffer, sizeof(buffer), + NULL, NULL); + if (buffer[0] == 27) { + /* escape */ + return; + } + } + } + redraw = 1; + break; + default: + ; /*no-op*/ + } + + if (redraw) { + draw(); + eglSwapBuffers(egl_dpy, egl_surf); + } + } +} + + +static void +usage(void) +{ + printf("Usage:\n"); + printf(" -display <displayname> set the display to run on\n"); + printf(" -info display OpenGL renderer info\n"); +} + + +int +main(int argc, char *argv[]) +{ + const int winWidth = 300, winHeight = 300; + Display *x_dpy; + Window win; + EGLSurface egl_surf; + EGLContext egl_ctx; + EGLDisplay egl_dpy; + char *dpyName = NULL; + GLboolean printInfo = GL_FALSE; + EGLint egl_major, egl_minor; + int i; + const char *s; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-display") == 0) { + dpyName = argv[i+1]; + i++; + } + else if (strcmp(argv[i], "-info") == 0) { + printInfo = GL_TRUE; + } + else { + usage(); + return -1; + } + } + + x_dpy = XOpenDisplay(dpyName); + if (!x_dpy) { + printf("Error: couldn't open display %s\n", + dpyName ? dpyName : getenv("DISPLAY")); + return -1; + } + + egl_dpy = eglGetDisplay(x_dpy); + if (!egl_dpy) { + printf("Error: eglGetDisplay() failed\n"); + return -1; + } + + if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) { + printf("Error: eglInitialize() failed\n"); + return -1; + } + + s = eglQueryString(egl_dpy, EGL_VERSION); + printf("EGL_VERSION = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_VENDOR); + printf("EGL_VENDOR = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_EXTENSIONS); + printf("EGL_EXTENSIONS = %s\n", s); + + s = eglQueryString(egl_dpy, EGL_CLIENT_APIS); + printf("EGL_CLIENT_APIS = %s\n", s); + + make_x_window(x_dpy, egl_dpy, + "OpenGL ES 2.x tri", 0, 0, winWidth, winHeight, + &win, &egl_ctx, &egl_surf); + + XMapWindow(x_dpy, win); + if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) { + printf("Error: eglMakeCurrent() failed\n"); + return -1; + } + + if (printInfo) { + 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)); + printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS)); + } + + init(); + + /* Set initial projection/viewing transformation. + * We can't be sure we'll get a ConfigureNotify event when the window + * first appears. + */ + reshape(winWidth, winHeight); + + event_loop(x_dpy, win, egl_dpy, egl_surf); + + eglDestroyContext(egl_dpy, egl_ctx); + eglDestroySurface(egl_dpy, egl_surf); + eglTerminate(egl_dpy); + + + XDestroyWindow(x_dpy, win); + XCloseDisplay(x_dpy); + + return 0; +} |