From 7b48d88407655dc135d7a3c2c47d9df3e8dff01e Mon Sep 17 00:00:00 2001 From: Chia-I Wu Date: Thu, 1 Apr 2010 14:03:30 +0800 Subject: [PATCH] progs/egl: Port ES1 gears to eglut. As gears in the last demo under "screen" subdirectory, this also removes the directory. --- progs/egl/opengles1/.gitignore | 3 +- progs/egl/opengles1/Makefile | 1 + progs/egl/opengles1/{screen => }/gears.c | 43 ++-- progs/egl/opengles1/screen/Makefile | 28 --- progs/egl/opengles1/screen/winsys.c | 272 ----------------------- progs/egl/opengles1/screen/winsys.h | 36 --- 6 files changed, 28 insertions(+), 355 deletions(-) rename progs/egl/opengles1/{screen => }/gears.c (93%) delete mode 100644 progs/egl/opengles1/screen/Makefile delete mode 100644 progs/egl/opengles1/screen/winsys.c delete mode 100644 progs/egl/opengles1/screen/winsys.h diff --git a/progs/egl/opengles1/.gitignore b/progs/egl/opengles1/.gitignore index 8c1c9a8ef98..e95e393b002 100644 --- a/progs/egl/opengles1/.gitignore +++ b/progs/egl/opengles1/.gitignore @@ -1,8 +1,7 @@ -screen/gears -screen/tri bindtex drawtex es1_info +gears msaa pbuffer render_tex diff --git a/progs/egl/opengles1/Makefile b/progs/egl/opengles1/Makefile index d6c09c6abe3..27caa0cd0f6 100644 --- a/progs/egl/opengles1/Makefile +++ b/progs/egl/opengles1/Makefile @@ -22,6 +22,7 @@ ES1_LIBS = \ EGLUT_DIR = $(TOP)/progs/egl/eglut EGLUT_DEMOS = \ + gears \ tri EGLUT_X11_DEMOS := $(addsuffix _x11,$(EGLUT_DEMOS)) diff --git a/progs/egl/opengles1/screen/gears.c b/progs/egl/opengles1/gears.c similarity index 93% rename from progs/egl/opengles1/screen/gears.c rename to progs/egl/opengles1/gears.c index c7625826b97..8462a4871a7 100644 --- a/progs/egl/opengles1/screen/gears.c +++ b/progs/egl/opengles1/gears.c @@ -28,7 +28,7 @@ #include #include -#include "winsys.h" +#include "eglut.h" #ifndef M_PI #define M_PI 3.14159265 @@ -247,7 +247,7 @@ draw_gear(const struct gear *gear) static void -gears_draw(void *data) +gears_draw(void) { static const GLfloat red[4] = { 0.8, 0.1, 0.0, 1.0 }; static const GLfloat green[4] = { 0.0, 0.8, 0.2, 1.0 }; @@ -288,11 +288,6 @@ gears_draw(void *data) glPopMatrix(); glPopMatrix(); - - /* advance rotation for next frame */ - angle += 0.5; /* 0.5 degree per frame */ - if (angle > 3600.0) - angle -= 3600.0; } @@ -348,27 +343,41 @@ gears_reshape(int width, int height) } -static void gears_run(void) +static void +gears_idle(void) { - winsysRun(5.0, gears_draw, NULL); + static double t0 = -1.; + double dt, t = eglutGet(EGLUT_ELAPSED_TIME) / 1000.0; + if (t0 < 0.0) + t0 = t; + dt = t - t0; + t0 = t; + + angle += 70.0 * dt; /* 70 degrees per second */ + angle = fmod(angle, 360.0); /* prevents eventual overflow */ + + eglutPostRedisplay(); } int main(int argc, char *argv[]) { - EGLint width, height; + eglutInitWindowSize(300, 300); + eglutInitAPIMask(EGLUT_OPENGL_ES1_BIT); + eglutInit(argc, argv); - if (!winsysInitScreen()) - exit(1); - winsysQueryScreenSize(&width, &height); + eglutCreateWindow("gears"); + + eglutIdleFunc(gears_idle); + eglutReshapeFunc(gears_reshape); + eglutDisplayFunc(gears_draw); gears_init(); - gears_reshape(width, height); - gears_run(); - gears_fini(); - winsysFiniScreen(); + eglutMainLoop(); + + gears_fini(); return 0; } diff --git a/progs/egl/opengles1/screen/Makefile b/progs/egl/opengles1/screen/Makefile deleted file mode 100644 index 0c3c136ff25..00000000000 --- a/progs/egl/opengles1/screen/Makefile +++ /dev/null @@ -1,28 +0,0 @@ -# progs/egl/opengles1/screen/Makefile - -TOP = ../../../.. -include $(TOP)/configs/current - -ES1_CFLAGS = -I$(TOP)/include -ES1_LIBS = -L$(TOP)/$(LIB_DIR) -lEGL -lGLESv1_CM - -ES1_LIB_DEPS = \ - $(TOP)/$(LIB_DIR)/libEGL.so \ - $(TOP)/$(LIB_DIR)/libGLESv1_CM.so - -WINSYS_OBJS = winsys.o - -PROGRAMS = \ - gears - -.c.o: - $(CC) -c $(ES1_CFLAGS) $(CFLAGS) $< -o $@ - -default: $(PROGRAMS) - -gears: gears.o $(WINSYS_OBJS) $(ES1_LIB_DEPS) - $(CC) $(CFLAGS) -o $@ $@.o $(WINSYS_OBJS) $(ES1_LIBS) - -clean: - -rm -f *.o *~ - -rm -f $(PROGRAMS) diff --git a/progs/egl/opengles1/screen/winsys.c b/progs/egl/opengles1/screen/winsys.c deleted file mode 100644 index 84d00471eba..00000000000 --- a/progs/egl/opengles1/screen/winsys.c +++ /dev/null @@ -1,272 +0,0 @@ -/* - * Copyright (C) 2009 Chia-I Wu - * - * Based on eglgears by - * Copyright (C) 1999-2001 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. - */ - -#include -#include -#include -#include -#include - -#define EGL_EGLEXT_PROTOTYPES - -#include -#include - -#include "winsys.h" - -#define MAX_MODES 100 - -static struct { - EGLBoolean verbose; - - EGLDisplay dpy; - EGLConfig conf; - - EGLScreenMESA screen; - EGLModeMESA mode; - EGLint width, height; - - EGLContext ctx; - EGLSurface surf; -} screen; - - -static EGLBoolean -init_screen(void) -{ - EGLModeMESA modes[MAX_MODES]; - EGLint num_screens, num_modes; - EGLint width, height, best_mode; - EGLint i; - - if (!eglGetScreensMESA(screen.dpy, &screen.screen, 1, &num_screens) || - !num_screens) { - printf("eglGetScreensMESA failed\n"); - return EGL_FALSE; - } - - if (!eglGetModesMESA(screen.dpy, screen.screen, modes, MAX_MODES, - &num_modes) || - !num_modes) { - printf("eglGetModesMESA failed!\n"); - return EGL_FALSE; - } - - printf("Found %d modes:\n", num_modes); - - best_mode = 0; - width = 0; - height = 0; - for (i = 0; i < num_modes; i++) { - EGLint w, h; - eglGetModeAttribMESA(screen.dpy, modes[i], EGL_WIDTH, &w); - eglGetModeAttribMESA(screen.dpy, modes[i], EGL_HEIGHT, &h); - printf("%3d: %d x %d\n", i, w, h); - if (w > width && h > height) { - width = w; - height = h; - best_mode = i; - } - } - - screen.mode = modes[best_mode]; - screen.width = width; - screen.height = height; - - return EGL_TRUE; -} - - -static EGLBoolean -init_display(void) -{ - EGLint maj, min; - const char *exts; - const EGLint attribs[] = { - EGL_SURFACE_TYPE, 0x0, /* should be EGL_SCREEN_BIT_MESA */ - EGL_RENDERABLE_TYPE, 0x0, /* should be EGL_OPENGL_ES_BIT */ - EGL_NONE - }; - EGLint num_configs; - - screen.dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY); - if (!screen.dpy) { - printf("eglGetDisplay failed\n"); - return EGL_FALSE; - } - - if (!eglInitialize(screen.dpy, &maj, &min)) { - printf("eglInitialize failed\n"); - return EGL_FALSE; - } - - printf("EGL_VERSION = %s\n", eglQueryString(screen.dpy, EGL_VERSION)); - printf("EGL_VENDOR = %s\n", eglQueryString(screen.dpy, EGL_VENDOR)); - - exts = eglQueryString(screen.dpy, EGL_EXTENSIONS); - assert(exts); - - if (!strstr(exts, "EGL_MESA_screen_surface")) { - printf("EGL_MESA_screen_surface is not supported\n"); - return EGL_FALSE; - } - - if (!eglChooseConfig(screen.dpy, attribs, &screen.conf, 1, - &num_configs) || - !num_configs) { - printf("eglChooseConfig failed\n"); - return EGL_FALSE; - } - - return EGL_TRUE; -} - - -EGLBoolean -winsysInitScreen(void) -{ - EGLint surf_attribs[20]; - EGLint i; - EGLBoolean ok; - - if (!init_display()) - goto fail; - if (!init_screen()) - goto fail; - - /* create context */ - screen.ctx = eglCreateContext(screen.dpy, screen.conf, - EGL_NO_CONTEXT, NULL); - if (screen.ctx == EGL_NO_CONTEXT) { - printf("eglCreateContext failed\n"); - goto fail; - } - - i = 0; - surf_attribs[i++] = EGL_WIDTH; - surf_attribs[i++] = screen.width; - surf_attribs[i++] = EGL_HEIGHT; - surf_attribs[i++] = screen.height; - surf_attribs[i++] = EGL_NONE; - - /* create surface */ - printf("Using screen size: %d x %d\n", screen.width, screen.height); - screen.surf = eglCreateScreenSurfaceMESA(screen.dpy, screen.conf, - surf_attribs); - if (screen.surf == EGL_NO_SURFACE) { - printf("eglCreateScreenSurfaceMESA failed\n"); - goto fail; - } - - ok = eglMakeCurrent(screen.dpy, screen.surf, screen.surf, screen.ctx); - if (!ok) { - printf("eglMakeCurrent failed\n"); - goto fail; - } - - ok = eglShowScreenSurfaceMESA(screen.dpy, screen.screen, - screen.surf, screen.mode); - if (!ok) { - printf("eglShowScreenSurfaceMESA failed\n"); - goto fail; - } - - return EGL_TRUE; - -fail: - winsysFiniScreen(); - return EGL_FALSE; -} - - -EGLBoolean -winsysQueryScreenSize(EGLint *width, EGLint *height) -{ - if (!screen.dpy) - return EGL_FALSE; - - if (width) - *width = screen.width; - if (height) - *height = screen.height; - - return EGL_TRUE; -} - - -void -winsysFiniScreen(void) -{ - if (screen.dpy) { - eglMakeCurrent(screen.dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, - EGL_NO_CONTEXT); - if (screen.surf != EGL_NO_SURFACE) - eglDestroySurface(screen.dpy, screen.surf); - if (screen.ctx != EGL_NO_CONTEXT) - eglDestroyContext(screen.dpy, screen.ctx); - eglTerminate(screen.dpy); - - memset(&screen, 0, sizeof(screen)); - } -} - - -void -winsysSwapBuffers(void) -{ - eglSwapBuffers(screen.dpy, screen.surf); -} - - -/* return current time (in seconds) */ -double -winsysNow(void) -{ - struct timeval tv; - gettimeofday(&tv, NULL); - return (double) tv.tv_sec + tv.tv_usec / 1000000.0; -} - - -void -winsysRun(double seconds, void (*draw_frame)(void *data), void *data) -{ - double begin, end, last_frame, duration; - EGLint num_frames = 0; - - begin = winsysNow(); - end = begin + seconds; - - last_frame = begin; - while (last_frame < end) { - draw_frame(data); - winsysSwapBuffers(); - last_frame = winsysNow(); - num_frames++; - } - - duration = last_frame - begin; - printf("%d frames in %3.1f seconds = %6.3f FPS\n", - num_frames, duration, (double) num_frames / duration); -} diff --git a/progs/egl/opengles1/screen/winsys.h b/progs/egl/opengles1/screen/winsys.h deleted file mode 100644 index 679c7e0bd6d..00000000000 --- a/progs/egl/opengles1/screen/winsys.h +++ /dev/null @@ -1,36 +0,0 @@ -/* - * Copyright (C) 2009 Chia-I Wu - * - * 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. - */ - -#ifndef _WINSYS_H_ -#define _WINSYS_H_ - -#include - -EGLBoolean winsysInitScreen(void); -EGLBoolean winsysQueryScreenSize(EGLint *width, EGLint *height); -void winsysFiniScreen(void); - -void winsysSwapBuffers(void); -double winsysNow(void); - -void winsysRun(double seconds, void (*draw_frame)(void *data), void *data); - -#endif /* _WINSYS_H_ */ -- 2.30.2