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-rw-r--r--progs/egl/opengl/.gitignore13
-rw-r--r--progs/egl/opengl/Makefile83
-rw-r--r--progs/egl/opengl/demo1.c147
-rw-r--r--progs/egl/opengl/demo2.c216
-rw-r--r--progs/egl/opengl/demo3.c647
-rw-r--r--progs/egl/opengl/eglgears.c301
-rw-r--r--progs/egl/opengl/eglinfo.c223
-rw-r--r--progs/egl/opengl/eglscreen.c120
-rw-r--r--progs/egl/opengl/egltri.c141
-rw-r--r--progs/egl/opengl/peglgears.c451
-rw-r--r--progs/egl/opengl/xeglgears.c954
-rw-r--r--progs/egl/opengl/xeglthreads.c775
12 files changed, 4071 insertions, 0 deletions
diff --git a/progs/egl/opengl/.gitignore b/progs/egl/opengl/.gitignore
new file mode 100644
index 00000000000..49c3a511f3c
--- /dev/null
+++ b/progs/egl/opengl/.gitignore
@@ -0,0 +1,13 @@
+demo1
+demo2
+demo3
+eglgears_x11
+eglgears_screen
+eglinfo
+eglscreen
+egltri_x11
+egltri_screen
+peglgears
+xeglbindtex
+xeglgears
+xeglthreads
diff --git a/progs/egl/opengl/Makefile b/progs/egl/opengl/Makefile
new file mode 100644
index 00000000000..9a91df99064
--- /dev/null
+++ b/progs/egl/opengl/Makefile
@@ -0,0 +1,83 @@
+# progs/egl/Makefile
+
+TOP = ../../..
+include $(TOP)/configs/current
+
+
+INCLUDE_DIRS = -I$(TOP)/include
+
+HEADERS = $(TOP)/include/GLES/egl.h
+LIB_DEP = $(TOP)/$(LIB_DIR)/libEGL.so
+
+LIBS = -L$(TOP)/$(LIB_DIR) -lEGL -lGL -lm
+
+EGLUT_DIR = $(TOP)/progs/egl/eglut
+
+EGLUT_DEMOS = \
+ eglgears \
+ egltri
+
+EGLUT_X11_DEMOS := $(addsuffix _x11,$(EGLUT_DEMOS))
+EGLUT_SCREEN_DEMOS := $(addsuffix _screen,$(EGLUT_DEMOS))
+
+PROGRAMS = \
+ demo1 \
+ demo2 \
+ demo3 \
+ eglinfo \
+ eglscreen \
+ peglgears \
+ xeglgears \
+ xeglthreads
+
+
+.c.o:
+ $(CC) -c $(INCLUDE_DIRS) -I$(EGLUT_DIR) $(CFLAGS) $< -o $@
+
+
+
+default: $(PROGRAMS) $(EGLUT_X11_DEMOS) $(EGLUT_SCREEN_DEMOS)
+
+demo1: demo1.o $(HEADERS) $(LIB_DEP)
+ $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LIBS) $(LIBDRM_LIB)
+
+demo2: demo2.o $(HEADERS) $(LIB_DEP)
+ $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LIBS) $(LIBDRM_LIB)
+
+demo3: demo3.o $(HEADERS) $(LIB_DEP)
+ $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LIBS) $(LIBDRM_LIB)
+
+eglinfo: eglinfo.o $(HEADERS) $(LIB_DEP)
+ $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LIBS)
+
+eglscreen: eglscreen.o $(HEADERS) $(LIB_DEP)
+ $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LIBS) $(LIBDRM_LIB)
+
+peglgears: peglgears.o $(HEADERS) $(LIB_DEP)
+ $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LIBS) $(LIBDRM_LIB) -lm
+
+xeglgears: xeglgears.o $(HEADERS) $(LIB_DEP)
+ $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LIBS) -lm $(X11_LIBS)
+
+xeglthreads: xeglthreads.o $(HEADERS) $(LIB_DEP)
+ $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LIBS) -lpthread -lm $(X11_LIBS)
+
+$(EGLUT_DIR)/libeglut-x11.a $(EGLUT_DIR)/libeglut-screen.a:
+ @$(MAKE) -C $(EGLUT_DIR)
+
+# define the rules for EGLUT demos
+define eglut-demo-rule
+$(1)_x11 $(1)_screen: $(1)_%: $(1).o $(EGLUT_DIR)/libeglut-%.a $(LIB_DEP)
+endef
+$(foreach demo, $(EGLUT_DEMOS), $(eval $(call eglut-demo-rule,$(demo))))
+
+# build EGLUT demos
+$(EGLUT_X11_DEMOS):
+ $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< -L$(EGLUT_DIR) -leglut-$* $(LIBS) -lX11
+$(EGLUT_SCREEN_DEMOS):
+ $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< -L$(EGLUT_DIR) -leglut-$* $(LIBS)
+
+clean:
+ -rm -f *.o *~
+ -rm -f $(PROGRAMS) $(EGLUT_X11_DEMOS) $(EGLUT_SCREEN_DEMOS)
+ @$(MAKE) -C $(EGLUT_DIR) clean
diff --git a/progs/egl/opengl/demo1.c b/progs/egl/opengl/demo1.c
new file mode 100644
index 00000000000..d892734ee55
--- /dev/null
+++ b/progs/egl/opengl/demo1.c
@@ -0,0 +1,147 @@
+/*
+ * Exercise EGL API functions
+ */
+
+#define EGL_EGLEXT_PROTOTYPES
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+/**
+ * Test EGL_MESA_screen_surface functions
+ */
+static void
+TestScreens(EGLDisplay dpy)
+{
+#define MAX 8
+ EGLScreenMESA screens[MAX];
+ EGLint numScreens;
+ EGLint i;
+
+ eglGetScreensMESA(dpy, screens, MAX, &numScreens);
+ printf("Found %d screens\n", numScreens);
+ for (i = 0; i < numScreens; i++) {
+ printf(" Screen %d handle: %d\n", i, (int) screens[i]);
+ }
+}
+
+/**
+ * Print table of all available configurations.
+ */
+static void
+PrintConfigs(EGLDisplay d, EGLConfig *configs, EGLint numConfigs)
+{
+ EGLint i;
+
+ printf("Configurations:\n");
+ printf(" bf lv d st colorbuffer dp st supported \n");
+ printf(" id sz l b ro r g b a th cl surfaces \n");
+ printf("----------------------------------------------\n");
+ for (i = 0; i < numConfigs; i++) {
+ EGLint id, size, level;
+ EGLint red, green, blue, alpha;
+ EGLint depth, stencil;
+ EGLint surfaces;
+ EGLint doubleBuf = 1, stereo = 0;
+ char surfString[100] = "";
+
+ eglGetConfigAttrib(d, configs[i], EGL_CONFIG_ID, &id);
+ eglGetConfigAttrib(d, configs[i], EGL_BUFFER_SIZE, &size);
+ eglGetConfigAttrib(d, configs[i], EGL_LEVEL, &level);
+
+ eglGetConfigAttrib(d, configs[i], EGL_RED_SIZE, &red);
+ eglGetConfigAttrib(d, configs[i], EGL_GREEN_SIZE, &green);
+ eglGetConfigAttrib(d, configs[i], EGL_BLUE_SIZE, &blue);
+ eglGetConfigAttrib(d, configs[i], EGL_ALPHA_SIZE, &alpha);
+ eglGetConfigAttrib(d, configs[i], EGL_DEPTH_SIZE, &depth);
+ eglGetConfigAttrib(d, configs[i], EGL_STENCIL_SIZE, &stencil);
+ eglGetConfigAttrib(d, configs[i], EGL_SURFACE_TYPE, &surfaces);
+
+ if (surfaces & EGL_WINDOW_BIT)
+ strcat(surfString, "win,");
+ if (surfaces & EGL_PBUFFER_BIT)
+ strcat(surfString, "pb,");
+ if (surfaces & EGL_PIXMAP_BIT)
+ strcat(surfString, "pix,");
+ if (strlen(surfString) > 0)
+ surfString[strlen(surfString) - 1] = 0;
+
+ printf("0x%02x %2d %2d %c %c %2d %2d %2d %2d %2d %2d %-12s\n",
+ id, size, level,
+ doubleBuf ? 'y' : '.',
+ stereo ? 'y' : '.',
+ red, green, blue, alpha,
+ depth, stencil, surfString);
+ }
+}
+
+
+
+int
+main(int argc, char *argv[])
+{
+ int maj, min;
+ EGLContext ctx;
+ EGLSurface pbuffer;
+ EGLConfig *configs;
+ EGLint numConfigs;
+ EGLBoolean b;
+ const EGLint pbufAttribs[] = {
+ EGL_WIDTH, 500,
+ EGL_HEIGHT, 500,
+ EGL_NONE
+ };
+
+ EGLDisplay d = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+ assert(d);
+
+ if (!eglInitialize(d, &maj, &min)) {
+ printf("demo: eglInitialize failed\n");
+ exit(1);
+ }
+
+ printf("EGL version = %d.%d\n", maj, min);
+ printf("EGL_VENDOR = %s\n", eglQueryString(d, EGL_VENDOR));
+
+ eglGetConfigs(d, NULL, 0, &numConfigs);
+ configs = malloc(sizeof(*configs) *numConfigs);
+ eglGetConfigs(d, configs, numConfigs, &numConfigs);
+
+ PrintConfigs(d, configs, numConfigs);
+
+ eglBindAPI(EGL_OPENGL_API);
+ ctx = eglCreateContext(d, configs[0], EGL_NO_CONTEXT, NULL);
+ if (ctx == EGL_NO_CONTEXT) {
+ printf("failed to create context\n");
+ return 0;
+ }
+
+ pbuffer = eglCreatePbufferSurface(d, configs[0], pbufAttribs);
+ if (pbuffer == EGL_NO_SURFACE) {
+ printf("failed to create pbuffer\n");
+ return 0;
+ }
+
+ free(configs);
+
+ b = eglMakeCurrent(d, pbuffer, pbuffer, ctx);
+ if (!b) {
+ printf("make current failed\n");
+ return 0;
+ }
+
+ b = eglMakeCurrent(d, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+
+ TestScreens(d);
+
+ eglDestroySurface(d, pbuffer);
+ eglDestroyContext(d, ctx);
+ eglTerminate(d);
+
+ return 0;
+}
diff --git a/progs/egl/opengl/demo2.c b/progs/egl/opengl/demo2.c
new file mode 100644
index 00000000000..b9e92f62ac2
--- /dev/null
+++ b/progs/egl/opengl/demo2.c
@@ -0,0 +1,216 @@
+/*
+ * Exercise EGL API functions
+ */
+
+#define EGL_EGLEXT_PROTOTYPES
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <GLES/gl.h>
+
+/*#define FRONTBUFFER*/
+
+static void _subset_Rectf(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2,
+ GLfloat r, GLfloat g, GLfloat b)
+{
+ GLfloat v[4][2], c[4][4];
+ int i;
+
+ v[0][0] = x1; v[0][1] = y1;
+ v[1][0] = x2; v[1][1] = y1;
+ v[2][0] = x2; v[2][1] = y2;
+ v[3][0] = x1; v[3][1] = y2;
+
+ for (i = 0; i < 4; i++) {
+ c[i][0] = r;
+ c[i][1] = g;
+ c[i][2] = b;
+ c[i][3] = 1.0;
+ }
+
+ glVertexPointer(2, GL_FLOAT, 0, v);
+ glColorPointer(4, GL_FLOAT, 0, v);
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_COLOR_ARRAY);
+
+ glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+
+ glDisableClientState(GL_VERTEX_ARRAY);
+ glDisableClientState(GL_COLOR_ARRAY);
+}
+
+
+static void redraw(EGLDisplay dpy, EGLSurface surf, int rot)
+{
+ GLfloat r, g, b;
+
+ printf("Redraw event\n");
+
+ glClearColor( rand()/(float)RAND_MAX,
+ rand()/(float)RAND_MAX,
+ rand()/(float)RAND_MAX,
+ 1);
+
+ glClear( GL_COLOR_BUFFER_BIT );
+
+ r = rand()/(float)RAND_MAX;
+ g = rand()/(float)RAND_MAX;
+ b = rand()/(float)RAND_MAX;
+
+ glPushMatrix();
+ glRotatef(rot, 0, 0, 1);
+ glScalef(.5, .5, .5);
+ _subset_Rectf( -1, -1, 1, 1, r, g, b );
+ glPopMatrix();
+
+#ifdef FRONTBUFFER
+ glFlush();
+#else
+ eglSwapBuffers( dpy, surf );
+#endif
+ glFinish();
+}
+
+
+/**
+ * Test EGL_MESA_screen_surface functions
+ */
+static void
+TestScreens(EGLDisplay dpy)
+{
+#define MAX 8
+ EGLScreenMESA screens[MAX];
+ EGLint numScreens;
+ EGLint i;
+
+ eglGetScreensMESA(dpy, screens, MAX, &numScreens);
+ printf("Found %d screens\n", numScreens);
+ for (i = 0; i < numScreens; i++) {
+ printf(" Screen %d handle: %d\n", i, (int) screens[i]);
+ }
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ int maj, min;
+ EGLContext ctx;
+ EGLSurface pbuffer, screen_surf;
+ EGLConfig configs[10];
+ EGLint numConfigs, i;
+ EGLBoolean b;
+ const EGLint pbufAttribs[] = {
+ EGL_WIDTH, 500,
+ EGL_HEIGHT, 500,
+ EGL_NONE
+ };
+ EGLint screenAttribs[32];
+ EGLModeMESA mode;
+ EGLScreenMESA screen;
+ EGLint count;
+
+ EGLDisplay d = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+ assert(d);
+
+ if (!eglInitialize(d, &maj, &min)) {
+ printf("demo: eglInitialize failed\n");
+ exit(1);
+ }
+
+ printf("EGL version = %d.%d\n", maj, min);
+ printf("EGL_VENDOR = %s\n", eglQueryString(d, EGL_VENDOR));
+ if (!strstr(eglQueryString(d, EGL_EXTENSIONS),
+ "EGL_MESA_screen_surface")) {
+ printf("EGL_MESA_screen_surface is not supported\n");
+ exit(1);
+ }
+
+ eglGetConfigs(d, configs, 10, &numConfigs);
+ printf("Got %d EGL configs:\n", numConfigs);
+ for (i = 0; i < numConfigs; i++) {
+ EGLint id, red, depth;
+ eglGetConfigAttrib(d, configs[i], EGL_CONFIG_ID, &id);
+ eglGetConfigAttrib(d, configs[i], EGL_RED_SIZE, &red);
+ eglGetConfigAttrib(d, configs[i], EGL_DEPTH_SIZE, &depth);
+ printf("%2d: Red Size = %d Depth Size = %d\n", id, red, depth);
+ }
+
+ eglGetScreensMESA(d, &screen, 1, &count);
+ eglGetModesMESA(d, screen, &mode, 1, &count);
+
+ eglBindAPI(EGL_OPENGL_API);
+ ctx = eglCreateContext(d, configs[0], EGL_NO_CONTEXT, NULL);
+ if (ctx == EGL_NO_CONTEXT) {
+ printf("failed to create context\n");
+ return 0;
+ }
+
+ pbuffer = eglCreatePbufferSurface(d, configs[0], pbufAttribs);
+ if (pbuffer == EGL_NO_SURFACE) {
+ printf("failed to create pbuffer\n");
+ return 0;
+ }
+
+ b = eglMakeCurrent(d, pbuffer, pbuffer, ctx);
+ if (!b) {
+ printf("make current failed\n");
+ return 0;
+ }
+
+ b = eglMakeCurrent(d, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+
+ i = 0;
+ screenAttribs[i++] = EGL_WIDTH;
+ eglGetModeAttribMESA(d, mode, EGL_WIDTH, &screenAttribs[i++]);
+ screenAttribs[i++] = EGL_HEIGHT;
+ eglGetModeAttribMESA(d, mode, EGL_HEIGHT, &screenAttribs[i++]);
+ screenAttribs[i] = EGL_NONE;
+
+ screen_surf = eglCreateScreenSurfaceMESA(d, configs[0], screenAttribs);
+ if (screen_surf == EGL_NO_SURFACE) {
+ printf("failed to create screen surface\n");
+ return 0;
+ }
+
+ eglShowScreenSurfaceMESA(d, screen, screen_surf, mode);
+
+ b = eglMakeCurrent(d, screen_surf, screen_surf, ctx);
+ if (!b) {
+ printf("make current failed\n");
+ return 0;
+ }
+
+ glViewport(0, 0, 1024, 768);
+
+ glClearColor( 0,
+ 1.0,
+ 0,
+ 1);
+
+ glClear( GL_COLOR_BUFFER_BIT );
+
+
+ TestScreens(d);
+
+ glShadeModel( GL_FLAT );
+
+ for (i = 0; i < 6; i++) {
+ redraw(d, screen_surf, i*10 );
+
+ printf("sleep(1)\n");
+ sleep(1);
+ }
+
+ eglDestroySurface(d, pbuffer);
+ eglDestroyContext(d, ctx);
+ eglTerminate(d);
+
+ return 0;
+}
diff --git a/progs/egl/opengl/demo3.c b/progs/egl/opengl/demo3.c
new file mode 100644
index 00000000000..64b9ee652cd
--- /dev/null
+++ b/progs/egl/opengl/demo3.c
@@ -0,0 +1,647 @@
+/*
+ * Exercise EGL API functions
+ */
+
+#define EGL_EGLEXT_PROTOTYPES
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <GL/gl.h>
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+
+#define PIXEL_CENTER(x) ((long)(x) + 0.5)
+
+#define GAP 10
+#define ROWS 3
+#define COLS 4
+
+#define OPENGL_WIDTH 48
+#define OPENGL_HEIGHT 13
+
+
+GLenum rgb, doubleBuffer, windType;
+GLint windW, windH;
+
+GLenum mode1, mode2;
+GLint boxW, boxH;
+GLubyte OpenGL_bits[] = {
+ 0x00, 0x03, 0x00, 0x00, 0x00, 0x00,
+ 0x7f, 0xfb, 0xff, 0xff, 0xff, 0x01,
+ 0x7f, 0xfb, 0xff, 0xff, 0xff, 0x01,
+ 0x00, 0x03, 0x00, 0x00, 0x00, 0x00,
+ 0x3e, 0x8f, 0xb7, 0xf9, 0xfc, 0x01,
+ 0x63, 0xdb, 0xb0, 0x8d, 0x0d, 0x00,
+ 0x63, 0xdb, 0xb7, 0x8d, 0x0d, 0x00,
+ 0x63, 0xdb, 0xb6, 0x8d, 0x0d, 0x00,
+ 0x63, 0x8f, 0xf3, 0xcc, 0x0d, 0x00,
+ 0x63, 0x00, 0x00, 0x0c, 0x4c, 0x0a,
+ 0x63, 0x00, 0x00, 0x0c, 0x4c, 0x0e,
+ 0x63, 0x00, 0x00, 0x8c, 0xed, 0x0e,
+ 0x3e, 0x00, 0x00, 0xf8, 0x0c, 0x00,
+};
+
+
+static void Init(void)
+{
+
+ mode1 = GL_TRUE;
+ mode2 = GL_TRUE;
+}
+
+static void Reshape(int width, int height)
+{
+
+ windW = (GLint)width;
+ windH = (GLint)height;
+}
+
+#if 0
+static void RotateColorMask(void)
+{
+ static GLint rotation = 0;
+
+ rotation = (rotation + 1) & 0x3;
+ switch (rotation) {
+ case 0:
+ glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
+ glIndexMask( 0xff );
+ break;
+ case 1:
+ glColorMask(GL_FALSE, GL_TRUE, GL_TRUE, GL_TRUE);
+ glIndexMask(0xFE);
+ break;
+ case 2:
+ glColorMask(GL_TRUE, GL_FALSE, GL_TRUE, GL_TRUE);
+ glIndexMask(0xFD);
+ break;
+ case 3:
+ glColorMask(GL_TRUE, GL_TRUE, GL_FALSE, GL_TRUE);
+ glIndexMask(0xFB);
+ break;
+ }
+}
+#endif
+
+static void Viewport(GLint row, GLint column)
+{
+ GLint x, y;
+
+ boxW = (windW - (COLS + 1) * GAP) / COLS;
+ boxH = (windH - (ROWS + 1) * GAP) / ROWS;
+
+ x = GAP + column * (boxW + GAP);
+ y = GAP + row * (boxH + GAP);
+
+ glViewport(x, y, boxW, boxH);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-boxW/2, boxW/2, -boxH/2, boxH/2, 0.0, 1.0);
+ glMatrixMode(GL_MODELVIEW);
+
+ glEnable(GL_SCISSOR_TEST);
+ glScissor(x, y, boxW, boxH);
+}
+
+enum {
+ COLOR_BLACK = 0,
+ COLOR_RED,
+ COLOR_GREEN,
+ COLOR_YELLOW,
+ COLOR_BLUE,
+ COLOR_MAGENTA,
+ COLOR_CYAN,
+ COLOR_WHITE
+};
+
+static float RGBMap[9][3] = {
+ {0, 0, 0},
+ {1, 0, 0},
+ {0, 1, 0},
+ {1, 1, 0},
+ {0, 0, 1},
+ {1, 0, 1},
+ {0, 1, 1},
+ {1, 1, 1},
+ {0.5, 0.5, 0.5}
+};
+
+static void SetColor(int c)
+{
+ glColor3fv(RGBMap[c]);
+}
+
+static void Point(void)
+{
+ GLint i;
+
+ glBegin(GL_POINTS);
+ SetColor(COLOR_WHITE);
+ glVertex2i(0, 0);
+ for (i = 1; i < 8; i++) {
+ GLint j = i * 2;
+ SetColor(COLOR_BLACK+i);
+ glVertex2i(-j, -j);
+ glVertex2i(-j, 0);
+ glVertex2i(-j, j);
+ glVertex2i(0, j);
+ glVertex2i(j, j);
+ glVertex2i(j, 0);
+ glVertex2i(j, -j);
+ glVertex2i(0, -j);
+ }
+ glEnd();
+}
+
+static void Lines(void)
+{
+ GLint i;
+
+ glPushMatrix();
+
+ glTranslatef(-12, 0, 0);
+ for (i = 1; i < 8; i++) {
+ SetColor(COLOR_BLACK+i);
+ glBegin(GL_LINES);
+ glVertex2i(-boxW/4, -boxH/4);
+ glVertex2i(boxW/4, boxH/4);
+ glEnd();
+ glTranslatef(4, 0, 0);
+ }
+
+ glPopMatrix();
+
+ glBegin(GL_LINES);
+ glVertex2i(0, 0);
+ glEnd();
+}
+
+static void LineStrip(void)
+{
+
+ glBegin(GL_LINE_STRIP);
+ SetColor(COLOR_RED);
+ glVertex2f(PIXEL_CENTER(-boxW/4), PIXEL_CENTER(-boxH/4));
+ SetColor(COLOR_GREEN);
+ glVertex2f(PIXEL_CENTER(-boxW/4), PIXEL_CENTER(boxH/4));
+ SetColor(COLOR_BLUE);
+ glVertex2f(PIXEL_CENTER(boxW/4), PIXEL_CENTER(boxH/4));
+ SetColor(COLOR_WHITE);
+ glVertex2f(PIXEL_CENTER(boxW/4), PIXEL_CENTER(-boxH/4));
+ glEnd();
+
+ glBegin(GL_LINE_STRIP);
+ glVertex2i(0, 0);
+ glEnd();
+}
+
+static void LineLoop(void)
+{
+
+ glBegin(GL_LINE_LOOP);
+ SetColor(COLOR_RED);
+ glVertex2f(PIXEL_CENTER(-boxW/4), PIXEL_CENTER(-boxH/4));
+ SetColor(COLOR_GREEN);
+ glVertex2f(PIXEL_CENTER(-boxW/4), PIXEL_CENTER(boxH/4));
+ SetColor(COLOR_BLUE);
+ glVertex2f(PIXEL_CENTER(boxW/4), PIXEL_CENTER(boxH/4));
+ SetColor(COLOR_WHITE);
+ glVertex2f(PIXEL_CENTER(boxW/4), PIXEL_CENTER(-boxH/4));
+ glEnd();
+
+ glEnable(GL_LOGIC_OP);
+ glLogicOp(GL_XOR);
+
+ glEnable(GL_BLEND);
+ glBlendFunc(GL_ONE, GL_ONE);
+
+ SetColor(COLOR_MAGENTA);
+ glBegin(GL_LINE_LOOP);
+ glVertex2f(PIXEL_CENTER(-boxW/8), PIXEL_CENTER(-boxH/8));
+ glVertex2f(PIXEL_CENTER(-boxW/8), PIXEL_CENTER(boxH/8));
+ glEnd();
+ glBegin(GL_LINE_LOOP);
+ glVertex2f(PIXEL_CENTER(-boxW/8), PIXEL_CENTER(boxH/8+5));
+ glVertex2f(PIXEL_CENTER(boxW/8), PIXEL_CENTER(boxH/8+5));
+ glEnd();
+ glDisable(GL_LOGIC_OP);
+ glDisable(GL_BLEND);
+
+ SetColor(COLOR_GREEN);
+ glBegin(GL_POINTS);
+ glVertex2i(0, 0);
+ glEnd();
+
+ glBegin(GL_LINE_LOOP);
+ glVertex2i(0, 0);
+ glEnd();
+}
+
+static void Bitmap(void)
+{
+
+ glBegin(GL_LINES);
+ SetColor(COLOR_GREEN);
+ glVertex2i(-boxW/2, 0);
+ glVertex2i(boxW/2, 0);
+ glVertex2i(0, -boxH/2);
+ glVertex2i(0, boxH/2);
+ SetColor(COLOR_RED);
+ glVertex2i(0, -3);
+ glVertex2i(0, -3+OPENGL_HEIGHT);
+ SetColor(COLOR_BLUE);
+ glVertex2i(0, -3);
+ glVertex2i(OPENGL_WIDTH, -3);
+ glEnd();
+
+ SetColor(COLOR_GREEN);
+
+ glPixelStorei(GL_UNPACK_LSB_FIRST, GL_TRUE);
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+
+ glRasterPos2i(0, 0);
+ glBitmap(OPENGL_WIDTH, OPENGL_HEIGHT, 0, 3, 0.0, 0.0, OpenGL_bits);
+}
+
+static void Triangles(void)
+{
+
+ glBegin(GL_TRIANGLES);
+ SetColor(COLOR_GREEN);
+ glVertex2i(-boxW/4, -boxH/4);
+ SetColor(COLOR_RED);
+ glVertex2i(-boxW/8, -boxH/16);
+ SetColor(COLOR_BLUE);
+ glVertex2i(boxW/8, -boxH/16);
+
+ SetColor(COLOR_GREEN);
+ glVertex2i(-boxW/4, boxH/4);
+ SetColor(COLOR_RED);
+ glVertex2i(-boxW/8, boxH/16);
+ SetColor(COLOR_BLUE);
+ glVertex2i(boxW/8, boxH/16);
+ glEnd();
+
+ glBegin(GL_TRIANGLES);
+ glVertex2i(0, 0);
+ glVertex2i(-100, 100);
+ glEnd();
+}
+
+static void TriangleStrip(void)
+{
+
+ glBegin(GL_TRIANGLE_STRIP);
+ SetColor(COLOR_GREEN);
+ glVertex2i(-boxW/4, -boxH/4);
+ SetColor(COLOR_RED);
+ glVertex2i(-boxW/4, boxH/4);
+ SetColor(COLOR_BLUE);
+ glVertex2i(0, -boxH/4);
+ SetColor(COLOR_WHITE);
+ glVertex2i(0, boxH/4);
+ SetColor(COLOR_CYAN);
+ glVertex2i(boxW/4, -boxH/4);
+ SetColor(COLOR_YELLOW);
+ glVertex2i(boxW/4, boxH/4);
+ glEnd();
+
+ glBegin(GL_TRIANGLE_STRIP);
+ glVertex2i(0, 0);
+ glVertex2i(-100, 100);
+ glEnd();
+}
+
+static void TriangleFan(void)
+{
+ GLint vx[8][2];
+ GLint x0, y0, x1, y1, x2, y2, x3, y3;
+ GLint i;
+
+ y0 = -boxH/4;
+ y1 = y0 + boxH/2/3;
+ y2 = y1 + boxH/2/3;
+ y3 = boxH/4;
+ x0 = -boxW/4;
+ x1 = x0 + boxW/2/3;
+ x2 = x1 + boxW/2/3;
+ x3 = boxW/4;
+
+ vx[0][0] = x0; vx[0][1] = y1;
+ vx[1][0] = x0; vx[1][1] = y2;
+ vx[2][0] = x1; vx[2][1] = y3;
+ vx[3][0] = x2; vx[3][1] = y3;
+ vx[4][0] = x3; vx[4][1] = y2;
+ vx[5][0] = x3; vx[5][1] = y1;
+ vx[6][0] = x2; vx[6][1] = y0;
+ vx[7][0] = x1; vx[7][1] = y0;
+
+ glBegin(GL_TRIANGLE_FAN);
+ SetColor(COLOR_WHITE);
+ glVertex2i(0, 0);
+ for (i = 0; i < 8; i++) {
+ SetColor(COLOR_WHITE-i);
+ glVertex2iv(vx[i]);
+ }
+ glEnd();
+
+ glBegin(GL_TRIANGLE_FAN);
+ glVertex2i(0, 0);
+ glVertex2i(-100, 100);
+ glEnd();
+}
+
+static void Rect(void)
+{
+
+ SetColor(COLOR_GREEN);
+ glRecti(-boxW/4, -boxH/4, boxW/4, boxH/4);
+}
+
+static void PolygonFunc(void)
+{
+ GLint vx[8][2];
+ GLint x0, y0, x1, y1, x2, y2, x3, y3;
+ GLint i;
+
+ y0 = -boxH/4;
+ y1 = y0 + boxH/2/3;
+ y2 = y1 + boxH/2/3;
+ y3 = boxH/4;
+ x0 = -boxW/4;
+ x1 = x0 + boxW/2/3;
+ x2 = x1 + boxW/2/3;
+ x3 = boxW/4;
+
+ vx[0][0] = x0; vx[0][1] = y1;
+ vx[1][0] = x0; vx[1][1] = y2;
+ vx[2][0] = x1; vx[2][1] = y3;
+ vx[3][0] = x2; vx[3][1] = y3;
+ vx[4][0] = x3; vx[4][1] = y2;
+ vx[5][0] = x3; vx[5][1] = y1;
+ vx[6][0] = x2; vx[6][1] = y0;
+ vx[7][0] = x1; vx[7][1] = y0;
+
+ glBegin(GL_POLYGON);
+ for (i = 0; i < 8; i++) {
+ SetColor(COLOR_WHITE-i);
+ glVertex2iv(vx[i]);
+ }
+ glEnd();
+
+ glBegin(GL_POLYGON);
+ glVertex2i(0, 0);
+ glVertex2i(100, 100);
+ glEnd();
+}
+
+static void Quads(void)
+{
+
+ glBegin(GL_QUADS);
+ SetColor(COLOR_GREEN);
+ glVertex2i(-boxW/4, -boxH/4);
+ SetColor(COLOR_RED);
+ glVertex2i(-boxW/8, -boxH/16);
+ SetColor(COLOR_BLUE);
+ glVertex2i(boxW/8, -boxH/16);
+ SetColor(COLOR_WHITE);
+ glVertex2i(boxW/4, -boxH/4);
+
+ SetColor(COLOR_GREEN);
+ glVertex2i(-boxW/4, boxH/4);
+ SetColor(COLOR_RED);
+ glVertex2i(-boxW/8, boxH/16);
+ SetColor(COLOR_BLUE);
+ glVertex2i(boxW/8, boxH/16);
+ SetColor(COLOR_WHITE);
+ glVertex2i(boxW/4, boxH/4);
+ glEnd();
+
+ glBegin(GL_QUADS);
+ glVertex2i(0, 0);
+ glVertex2i(100, 100);
+ glVertex2i(-100, 100);
+ glEnd();
+}
+
+static void QuadStrip(void)
+{
+
+ glBegin(GL_QUAD_STRIP);
+ SetColor(COLOR_GREEN);
+ glVertex2i(-boxW/4, -boxH/4);
+ SetColor(COLOR_RED);
+ glVertex2i(-boxW/4, boxH/4);
+ SetColor(COLOR_BLUE);
+ glVertex2i(0, -boxH/4);
+ SetColor(COLOR_WHITE);
+ glVertex2i(0, boxH/4);
+ SetColor(COLOR_CYAN);
+ glVertex2i(boxW/4, -boxH/4);
+ SetColor(COLOR_YELLOW);
+ glVertex2i(boxW/4, boxH/4);
+ glEnd();
+
+ glBegin(GL_QUAD_STRIP);
+ glVertex2i(0, 0);
+ glVertex2i(100, 100);
+ glVertex2i(-100, 100);
+ glEnd();
+}
+
+static void Draw(EGLDisplay dpy, EGLSurface surf)
+{
+
+ glViewport(0, 0, windW, windH);
+ glDisable(GL_SCISSOR_TEST);
+
+ glPushAttrib(GL_COLOR_BUFFER_BIT);
+
+ glColorMask(1, 1, 1, 1);
+ glIndexMask(~0);
+
+ glClearColor(0.0, 0.0, 0.0, 0.0);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ glPopAttrib();
+
+ if (mode1) {
+ glShadeModel(GL_SMOOTH);
+ } else {
+ glShadeModel(GL_FLAT);
+ }
+
+ if (mode2) {
+ glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+ } else {
+ glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+ }
+
+ Viewport(0, 0); Point();
+ Viewport(0, 1); Lines();
+ Viewport(0, 2); LineStrip();
+ Viewport(0, 3); LineLoop();
+
+ Viewport(1, 0); Bitmap();
+
+ Viewport(1, 1); TriangleFan();
+ Viewport(1, 2); Triangles();
+ Viewport(1, 3); TriangleStrip();
+
+ Viewport(2, 0); Rect();
+ Viewport(2, 1); PolygonFunc();
+ Viewport(2, 2); Quads();
+ Viewport(2, 3); QuadStrip();
+
+ glFlush();
+
+ if (doubleBuffer) {
+ eglSwapBuffers(dpy, surf);
+ }
+}
+
+static void
+write_ppm(const char *filename, const GLubyte *buffer, int width, int height)
+{
+ const int binary = 0;
+ FILE *f = fopen( filename, "w" );
+ if (f) {
+ int i, x, y;
+ const GLubyte *ptr = buffer;
+ if (binary) {
+ fprintf(f,"P6\n");
+ fprintf(f,"# ppm-file created by osdemo.c\n");
+ fprintf(f,"%i %i\n", width,height);
+ fprintf(f,"255\n");
+ fclose(f);
+ f = fopen( filename, "ab" ); /* reopen in binary append mode */
+ for (y=height-1; y>=0; y--) {
+ for (x=0; x<width; x++) {
+ i = (y*width + x) * 4;
+ fputc(ptr[i], f); /* write red */
+ fputc(ptr[i+1], f); /* write green */
+ fputc(ptr[i+2], f); /* write blue */
+ }
+ }
+ }
+ else {
+ /*ASCII*/
+ int counter = 0;
+ fprintf(f,"P3\n");
+ fprintf(f,"# ascii ppm file created by osdemo.c\n");
+ fprintf(f,"%i %i\n", width, height);
+ fprintf(f,"255\n");
+ for (y=height-1; y>=0; y--) {
+ for (x=0; x<width; x++) {
+ i = (y*width + x) * 4;
+ fprintf(f, " %3d %3d %3d", ptr[i], ptr[i+1], ptr[i+2]);
+ counter++;
+ if (counter % 5 == 0)
+ fprintf(f, "\n");
+ }
+ }
+ }
+ fclose(f);
+ }
+}
+
+int
+main(int argc, char *argv[])
+{
+ int maj, min;
+ EGLContext ctx;
+ EGLSurface screen_surf;
+ EGLConfig configs[10];
+ EGLScreenMESA screen;
+ EGLModeMESA mode;
+ EGLint numConfigs, count;
+ EGLBoolean b;
+ const GLubyte *bitmap;
+ EGLint screenAttribs[32];
+ EGLint i;
+
+ EGLDisplay d = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+ assert(d);
+
+ if (!eglInitialize(d, &maj, &min)) {
+ printf("demo: eglInitialize failed\n");
+ exit(1);
+ }
+
+ printf("EGL version = %d.%d\n", maj, min);
+ printf("EGL_VENDOR = %s\n", eglQueryString(d, EGL_VENDOR));
+ if (!strstr(eglQueryString(d, EGL_EXTENSIONS),
+ "EGL_MESA_screen_surface")) {
+ printf("EGL_MESA_screen_surface is not supported\n");
+ exit(1);
+ }
+
+ eglGetConfigs(d, configs, 10, &numConfigs);
+ eglGetScreensMESA(d, &screen, 1, &count);
+ eglGetModesMESA(d, screen, &mode, 1, &count);
+
+ eglBindAPI(EGL_OPENGL_API);
+ ctx = eglCreateContext(d, configs[0], EGL_NO_CONTEXT, NULL);
+ if (ctx == EGL_NO_CONTEXT) {
+ printf("failed to create context\n");
+ return 0;
+ }
+
+ i = 0;
+ screenAttribs[i++] = EGL_WIDTH;
+ eglGetModeAttribMESA(d, mode, EGL_WIDTH, &screenAttribs[i++]);
+ screenAttribs[i++] = EGL_HEIGHT;
+ eglGetModeAttribMESA(d, mode, EGL_HEIGHT, &screenAttribs[i++]);
+ screenAttribs[i] = EGL_NONE;
+
+ screen_surf = eglCreateScreenSurfaceMESA(d, configs[0], screenAttribs);
+ if (screen_surf == EGL_NO_SURFACE) {
+ printf("failed to create screen surface\n");
+ return 0;
+ }
+
+ eglShowScreenSurfaceMESA(d, screen, screen_surf, mode);
+
+ b = eglMakeCurrent(d, screen_surf, screen_surf, ctx);
+ if (!b) {
+ printf("make current failed\n");
+ return 0;
+ }
+ glViewport(0, 0, 1024, 768);
+
+
+ Init();
+ Reshape(1024, 768);
+
+ /* some drivers crash when rendering to front buffer */
+#if 0
+ glDrawBuffer( GL_FRONT );
+ glClearColor( 0, 1.0, 0, 1);
+
+ glClear( GL_COLOR_BUFFER_BIT );
+#endif
+
+ doubleBuffer = 1;
+ glDrawBuffer( GL_BACK );
+
+ Draw(d, screen_surf);
+ sleep(2);
+
+ /* TODO EGL_KHR_lock_surface */
+ bitmap = NULL;
+ if (bitmap)
+ write_ppm("dump.ppm", bitmap, 1024, 768);
+
+ eglDestroySurface(d, screen_surf);
+ eglDestroyContext(d, ctx);
+ eglTerminate(d);
+
+ return 0;
+}
diff --git a/progs/egl/opengl/eglgears.c b/progs/egl/opengl/eglgears.c
new file mode 100644
index 00000000000..28da9c0ac74
--- /dev/null
+++ b/progs/egl/opengl/eglgears.c
@@ -0,0 +1,301 @@
+/*
+ * 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.
+ */
+
+/*
+ * This is a port of the infamous "glxgears" demo to straight EGL
+ * Port by Dane Rushton 10 July 2005
+ *
+ * No command line options.
+ * Program runs for 5 seconds then exits, outputing framerate to console
+ */
+
+#include <math.h>
+#include <GL/gl.h>
+#include <EGL/egl.h>
+
+#include "eglut.h"
+
+static GLfloat view_rotx = 20.0, view_roty = 30.0, view_rotz = 0.0;
+static GLint gear1, gear2, gear3;
+static GLfloat angle = 0.0;
+
+/*
+ *
+ * Draw a gear wheel. You'll probably want to call this function when
+ * building a display list since we do a lot of trig here.
+ *
+ * Input: inner_radius - radius of hole at center
+ * outer_radius - radius at center of teeth
+ * width - width of gear
+ * teeth - number of teeth
+ * tooth_depth - depth of tooth
+ */
+static void
+gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width,
+ GLint teeth, GLfloat tooth_depth)
+{
+ GLint i;
+ GLfloat r0, r1, r2;
+ GLfloat angle, da;
+ GLfloat u, v, len;
+
+ r0 = inner_radius;
+ r1 = outer_radius - tooth_depth / 2.0;
+ r2 = outer_radius + tooth_depth / 2.0;
+
+ da = 2.0 * M_PI / teeth / 4.0;
+
+ glShadeModel(GL_FLAT);
+
+ glNormal3f(0.0, 0.0, 1.0);
+
+ /* draw front face */
+ glBegin(GL_QUAD_STRIP);
+ for (i = 0; i <= teeth; i++) {
+ angle = i * 2.0 * M_PI / teeth;
+ glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
+ glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
+ if (i < teeth) {
+ glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
+ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+ width * 0.5);
+ }
+ }
+ glEnd();
+
+ /* draw front sides of teeth */
+ glBegin(GL_QUADS);
+ da = 2.0 * M_PI / teeth / 4.0;
+ for (i = 0; i < teeth; i++) {
+ angle = i * 2.0 * M_PI / teeth;
+
+ glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
+ glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5);
+ glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
+ width * 0.5);
+ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+ width * 0.5);
+ }
+ glEnd();
+
+ glNormal3f(0.0, 0.0, -1.0);
+
+ /* draw back face */
+ glBegin(GL_QUAD_STRIP);
+ for (i = 0; i <= teeth; i++) {
+ angle = i * 2.0 * M_PI / teeth;
+ glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
+ glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
+ if (i < teeth) {
+ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+ -width * 0.5);
+ glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
+ }
+ }
+ glEnd();
+
+ /* draw back sides of teeth */
+ glBegin(GL_QUADS);
+ da = 2.0 * M_PI / teeth / 4.0;
+ for (i = 0; i < teeth; i++) {
+ angle = i * 2.0 * M_PI / teeth;
+
+ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+ -width * 0.5);
+ glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
+ -width * 0.5);
+ glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5);
+ glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
+ }
+ glEnd();
+
+ /* draw outward faces of teeth */
+ glBegin(GL_QUAD_STRIP);
+ for (i = 0; i < teeth; i++) {
+ angle = i * 2.0 * M_PI / teeth;
+
+ glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
+ glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
+ u = r2 * cos(angle + da) - r1 * cos(angle);
+ v = r2 * sin(angle + da) - r1 * sin(angle);
+ len = sqrt(u * u + v * v);
+ u /= len;
+ v /= len;
+ glNormal3f(v, -u, 0.0);
+ glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5);
+ glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5);
+ glNormal3f(cos(angle), sin(angle), 0.0);
+ glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
+ width * 0.5);
+ glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
+ -width * 0.5);
+ u = r1 * cos(angle + 3 * da) - r2 * cos(angle + 2 * da);
+ v = r1 * sin(angle + 3 * da) - r2 * sin(angle + 2 * da);
+ glNormal3f(v, -u, 0.0);
+ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+ width * 0.5);
+ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+ -width * 0.5);
+ glNormal3f(cos(angle), sin(angle), 0.0);
+ }
+
+ glVertex3f(r1 * cos(0), r1 * sin(0), width * 0.5);
+ glVertex3f(r1 * cos(0), r1 * sin(0), -width * 0.5);
+
+ glEnd();
+
+ glShadeModel(GL_SMOOTH);
+
+ /* draw inside radius cylinder */
+ glBegin(GL_QUAD_STRIP);
+ for (i = 0; i <= teeth; i++) {
+ angle = i * 2.0 * M_PI / teeth;
+ glNormal3f(-cos(angle), -sin(angle), 0.0);
+ glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
+ glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
+ }
+ glEnd();
+}
+
+
+static void
+draw(void)
+{
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glPushMatrix();
+ glRotatef(view_rotx, 1.0, 0.0, 0.0);
+ glRotatef(view_roty, 0.0, 1.0, 0.0);
+ glRotatef(view_rotz, 0.0, 0.0, 1.0);
+
+ glPushMatrix();
+ glTranslatef(-3.0, -2.0, 0.0);
+ glRotatef(angle, 0.0, 0.0, 1.0);
+ glCallList(gear1);
+ glPopMatrix();
+
+ glPushMatrix();
+ glTranslatef(3.1, -2.0, 0.0);
+ glRotatef(-2.0 * angle - 9.0, 0.0, 0.0, 1.0);
+ glCallList(gear2);
+ glPopMatrix();
+
+ glPushMatrix();
+ glTranslatef(-3.1, 4.2, 0.0);
+ glRotatef(-2.0 * angle - 25.0, 0.0, 0.0, 1.0);
+ glCallList(gear3);
+ glPopMatrix();
+
+ glPopMatrix();
+}
+
+
+static void
+idle(void)
+{
+ 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();
+}
+
+/* new window size or exposure */
+static void
+reshape(int width, int height)
+{
+ GLfloat h = (GLfloat) height / (GLfloat) width;
+
+ glViewport(0, 0, (GLint) width, (GLint) height);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustum(-1.0, 1.0, -h, h, 5.0, 60.0);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -40.0);
+}
+
+
+
+static void
+init(void)
+{
+ static GLfloat pos[4] = { 5.0, 5.0, 10.0, 0.0 };
+ static GLfloat red[4] = { 0.8, 0.1, 0.0, 1.0 };
+ static GLfloat green[4] = { 0.0, 0.8, 0.2, 1.0 };
+ static GLfloat blue[4] = { 0.2, 0.2, 1.0, 1.0 };
+
+ glLightfv(GL_LIGHT0, GL_POSITION, pos);
+ glEnable(GL_CULL_FACE);
+ glEnable(GL_LIGHTING);
+ glEnable(GL_LIGHT0);
+ glEnable(GL_DEPTH_TEST);
+
+ /* make the gears */
+ gear1 = glGenLists(1);
+ glNewList(gear1, GL_COMPILE);
+ glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, red);
+ gear(1.0, 4.0, 1.0, 20, 0.7);
+ glEndList();
+
+ gear2 = glGenLists(1);
+ glNewList(gear2, GL_COMPILE);
+ glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green);
+ gear(0.5, 2.0, 2.0, 10, 0.7);
+ glEndList();
+
+ gear3 = glGenLists(1);
+ glNewList(gear3, GL_COMPILE);
+ glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, blue);
+ gear(1.3, 2.0, 0.5, 10, 0.7);
+ glEndList();
+
+ glEnable(GL_NORMALIZE);
+}
+
+int
+main(int argc, char *argv[])
+{
+ eglutInitWindowSize(300, 300);
+ eglutInitAPIMask(EGLUT_OPENGL_BIT);
+ eglutInit(argc, argv);
+
+ eglutCreateWindow("eglgears");
+
+ eglutIdleFunc(idle);
+ eglutReshapeFunc(reshape);
+ eglutDisplayFunc(draw);
+
+ init();
+ glDrawBuffer(GL_BACK);
+
+ eglutMainLoop();
+
+ return 0;
+}
diff --git a/progs/egl/opengl/eglinfo.c b/progs/egl/opengl/eglinfo.c
new file mode 100644
index 00000000000..961fd9ccc76
--- /dev/null
+++ b/progs/egl/opengl/eglinfo.c
@@ -0,0 +1,223 @@
+/*
+ * eglinfo - like glxinfo but for EGL
+ *
+ * Brian Paul
+ * 11 March 2005
+ *
+ * Copyright (C) 2005 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.
+ */
+
+#define EGL_EGLEXT_PROTOTYPES
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define MAX_CONFIGS 1000
+#define MAX_MODES 1000
+#define MAX_SCREENS 10
+
+/* These are X visual types, so if you're running eglinfo under
+ * something not X, they probably don't make sense. */
+static const char *vnames[] = { "SG", "GS", "SC", "PC", "TC", "DC" };
+
+/**
+ * Print table of all available configurations.
+ */
+static void
+PrintConfigs(EGLDisplay d)
+{
+ EGLConfig configs[MAX_CONFIGS];
+ EGLint numConfigs, i;
+
+ eglGetConfigs(d, configs, MAX_CONFIGS, &numConfigs);
+
+ printf("Configurations:\n");
+ printf(" bf lv colorbuffer dp st ms vis cav bi renderable supported\n");
+ printf(" id sz l r g b a th cl ns b id eat nd gl es es2 vg surfaces \n");
+ printf("---------------------------------------------------------------------\n");
+ for (i = 0; i < numConfigs; i++) {
+ EGLint id, size, level;
+ EGLint red, green, blue, alpha;
+ EGLint depth, stencil;
+ EGLint renderable, surfaces;
+ EGLint vid, vtype, caveat, bindRgb, bindRgba;
+ EGLint samples, sampleBuffers;
+ char surfString[100] = "";
+
+ eglGetConfigAttrib(d, configs[i], EGL_CONFIG_ID, &id);
+ eglGetConfigAttrib(d, configs[i], EGL_BUFFER_SIZE, &size);
+ eglGetConfigAttrib(d, configs[i], EGL_LEVEL, &level);
+
+ eglGetConfigAttrib(d, configs[i], EGL_RED_SIZE, &red);
+ eglGetConfigAttrib(d, configs[i], EGL_GREEN_SIZE, &green);
+ eglGetConfigAttrib(d, configs[i], EGL_BLUE_SIZE, &blue);
+ eglGetConfigAttrib(d, configs[i], EGL_ALPHA_SIZE, &alpha);
+ eglGetConfigAttrib(d, configs[i], EGL_DEPTH_SIZE, &depth);
+ eglGetConfigAttrib(d, configs[i], EGL_STENCIL_SIZE, &stencil);
+ eglGetConfigAttrib(d, configs[i], EGL_NATIVE_VISUAL_ID, &vid);
+ eglGetConfigAttrib(d, configs[i], EGL_NATIVE_VISUAL_TYPE, &vtype);
+
+ eglGetConfigAttrib(d, configs[i], EGL_CONFIG_CAVEAT, &caveat);
+ eglGetConfigAttrib(d, configs[i], EGL_BIND_TO_TEXTURE_RGB, &bindRgb);
+ eglGetConfigAttrib(d, configs[i], EGL_BIND_TO_TEXTURE_RGBA, &bindRgba);
+ eglGetConfigAttrib(d, configs[i], EGL_RENDERABLE_TYPE, &renderable);
+ eglGetConfigAttrib(d, configs[i], EGL_SURFACE_TYPE, &surfaces);
+
+ eglGetConfigAttrib(d, configs[i], EGL_SAMPLES, &samples);
+ eglGetConfigAttrib(d, configs[i], EGL_SAMPLE_BUFFERS, &sampleBuffers);
+
+ if (surfaces & EGL_WINDOW_BIT)
+ strcat(surfString, "win,");
+ if (surfaces & EGL_PBUFFER_BIT)
+ strcat(surfString, "pb,");
+ if (surfaces & EGL_PIXMAP_BIT)
+ strcat(surfString, "pix,");
+#ifdef EGL_MESA_screen_surface
+ if (surfaces & EGL_SCREEN_BIT_MESA)
+ strcat(surfString, "scrn,");
+#endif
+ if (strlen(surfString) > 0)
+ surfString[strlen(surfString) - 1] = 0;
+
+ printf("0x%02x %2d %2d %2d %2d %2d %2d %2d %2d %2d%2d 0x%02x%s ",
+ id, size, level,
+ red, green, blue, alpha,
+ depth, stencil,
+ samples, sampleBuffers, vid, vtype < 6 ? vnames[vtype] : "--");
+ printf(" %c %c %c %c %c %c %s\n",
+ (caveat != EGL_NONE) ? 'y' : ' ',
+ (bindRgba) ? 'a' : (bindRgb) ? 'y' : ' ',
+ (renderable & EGL_OPENGL_BIT) ? 'y' : ' ',
+ (renderable & EGL_OPENGL_ES_BIT) ? 'y' : ' ',
+ (renderable & EGL_OPENGL_ES2_BIT) ? 'y' : ' ',
+ (renderable & EGL_OPENVG_BIT) ? 'y' : ' ',
+ surfString);
+ }
+}
+
+
+/**
+ * Print table of all available configurations.
+ */
+static void
+PrintModes(EGLDisplay d)
+{
+#ifdef EGL_MESA_screen_surface
+ const char *extensions = eglQueryString(d, EGL_EXTENSIONS);
+ if (strstr(extensions, "EGL_MESA_screen_surface")) {
+ EGLScreenMESA screens[MAX_SCREENS];
+ EGLint numScreens = 1, scrn;
+ EGLModeMESA modes[MAX_MODES];
+
+ eglGetScreensMESA(d, screens, MAX_SCREENS, &numScreens);
+ printf("Number of Screens: %d\n\n", numScreens);
+
+ for (scrn = 0; scrn < numScreens; scrn++) {
+ EGLint numModes, i;
+
+ eglGetModesMESA(d, screens[scrn], modes, MAX_MODES, &numModes);
+
+ printf("Screen %d Modes:\n", scrn);
+ printf(" id width height refresh name\n");
+ printf("-----------------------------------------\n");
+ for (i = 0; i < numModes; i++) {
+ EGLint id, w, h, r;
+ const char *str;
+ eglGetModeAttribMESA(d, modes[i], EGL_MODE_ID_MESA, &id);
+ eglGetModeAttribMESA(d, modes[i], EGL_WIDTH, &w);
+ eglGetModeAttribMESA(d, modes[i], EGL_HEIGHT, &h);
+ eglGetModeAttribMESA(d, modes[i], EGL_REFRESH_RATE_MESA, &r);
+ str = eglQueryModeStringMESA(d, modes[i]);
+ printf("0x%02x %5d %5d %.3f %s\n", id, w, h, r / 1000.0, str);
+ }
+ }
+ }
+#endif
+}
+
+static void
+PrintExtensions(EGLDisplay d)
+{
+ const char *extensions, *p, *end, *next;
+ int column;
+
+ printf("EGL extensions string:\n");
+
+ extensions = eglQueryString(d, EGL_EXTENSIONS);
+
+ column = 0;
+ end = extensions + strlen(extensions);
+
+ for (p = extensions; p < end; p = next + 1) {
+ next = strchr(p, ' ');
+ if (next == NULL)
+ next = end;
+
+ if (column > 0 && column + next - p + 1 > 70) {
+ printf("\n");
+ column = 0;
+ }
+ if (column == 0)
+ printf(" ");
+ else
+ printf(" ");
+ column += next - p + 1;
+
+ printf("%.*s", (int) (next - p), p);
+
+ p = next + 1;
+ }
+
+ if (column > 0)
+ printf("\n");
+}
+
+int
+main(int argc, char *argv[])
+{
+ int maj, min;
+ EGLDisplay d = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+
+ if (!eglInitialize(d, &maj, &min)) {
+ printf("eglinfo: eglInitialize failed\n");
+ exit(1);
+ }
+
+ printf("EGL API version: %d.%d\n", maj, min);
+ printf("EGL vendor string: %s\n", eglQueryString(d, EGL_VENDOR));
+ printf("EGL version string: %s\n", eglQueryString(d, EGL_VERSION));
+#ifdef EGL_VERSION_1_2
+ printf("EGL client APIs: %s\n", eglQueryString(d, EGL_CLIENT_APIS));
+#endif
+
+ PrintExtensions(d);
+
+ PrintConfigs(d);
+
+ PrintModes(d);
+
+ eglTerminate(d);
+
+ return 0;
+}
diff --git a/progs/egl/opengl/eglscreen.c b/progs/egl/opengl/eglscreen.c
new file mode 100644
index 00000000000..520f76ea036
--- /dev/null
+++ b/progs/egl/opengl/eglscreen.c
@@ -0,0 +1,120 @@
+/*
+ * 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.
+ */
+
+/*
+ * Stolen from eglgears
+ *
+ * Creates a surface and show that on the first screen
+ */
+
+#define EGL_EGLEXT_PROTOTYPES
+
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <GL/gl.h>
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+
+#define MAX_CONFIGS 10
+#define MAX_MODES 100
+
+int
+main(int argc, char *argv[])
+{
+ int maj, min;
+ EGLSurface screen_surf;
+ EGLConfig configs[MAX_CONFIGS];
+ EGLint numConfigs, i;
+ EGLBoolean b;
+ EGLDisplay d;
+ EGLint screenAttribs[10];
+ EGLModeMESA mode[MAX_MODES];
+ EGLScreenMESA screen;
+ EGLint count;
+ EGLint chosenMode = 0;
+ EGLint width = 0, height = 0;
+
+ d = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+ assert(d);
+
+ if (!eglInitialize(d, &maj, &min)) {
+ printf("eglscreen: eglInitialize failed\n");
+ exit(1);
+ }
+
+ printf("eglscreen: EGL version = %d.%d\n", maj, min);
+ printf("eglscreen: EGL_VENDOR = %s\n", eglQueryString(d, EGL_VENDOR));
+
+ /* XXX use ChooseConfig */
+ eglGetConfigs(d, configs, MAX_CONFIGS, &numConfigs);
+ eglGetScreensMESA(d, &screen, 1, &count);
+
+ if (!eglGetModesMESA(d, screen, mode, MAX_MODES, &count) || count == 0) {
+ printf("eglscreen: eglGetModesMESA failed!\n");
+ return 0;
+ }
+
+ /* Print list of modes, and find the one to use */
+ printf("eglscreen: Found %d modes:\n", count);
+ for (i = 0; i < count; i++) {
+ EGLint w, h;
+ eglGetModeAttribMESA(d, mode[i], EGL_WIDTH, &w);
+ eglGetModeAttribMESA(d, mode[i], EGL_HEIGHT, &h);
+ printf("%3d: %d x %d\n", i, w, h);
+ if (w > width && h > height) {
+ width = w;
+ height = h;
+ chosenMode = i;
+ }
+ }
+ printf("eglscreen: Using screen mode/size %d: %d x %d\n", chosenMode, width, height);
+
+ /* build up screenAttribs array */
+ i = 0;
+ screenAttribs[i++] = EGL_WIDTH;
+ screenAttribs[i++] = width;
+ screenAttribs[i++] = EGL_HEIGHT;
+ screenAttribs[i++] = height;
+ screenAttribs[i++] = EGL_NONE;
+
+ screen_surf = eglCreateScreenSurfaceMESA(d, configs[0], screenAttribs);
+ if (screen_surf == EGL_NO_SURFACE) {
+ printf("eglscreen: Failed to create screen surface\n");
+ return 0;
+ }
+
+ b = eglShowScreenSurfaceMESA(d, screen, screen_surf, mode[chosenMode]);
+ if (!b) {
+ printf("eglscreen: Show surface failed\n");
+ return 0;
+ }
+
+ usleep(5000000);
+
+ eglDestroySurface(d, screen_surf);
+ eglTerminate(d);
+
+ return 0;
+}
diff --git a/progs/egl/opengl/egltri.c b/progs/egl/opengl/egltri.c
new file mode 100644
index 00000000000..fb1dde3529c
--- /dev/null
+++ b/progs/egl/opengl/egltri.c
@@ -0,0 +1,141 @@
+/*
+ * 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.
+ * Brian Paul
+ * 3 June 2008
+ */
+
+
+#include <math.h>
+#include <stdlib.h>
+#include <string.h>
+#include <GL/gl.h>
+
+#include "eglut.h"
+
+
+static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
+
+
+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 }
+ };
+
+ 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(3, 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();
+}
+
+
+/* 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();
+ glFrustum(-ar, ar, -1, 1, 5.0, 60.0);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -10.0);
+}
+
+
+static void
+init(void)
+{
+ glClearColor(0.4, 0.4, 0.4, 0.0);
+}
+
+
+static void
+special_key(int special)
+{
+ switch (special) {
+ case EGLUT_KEY_LEFT:
+ view_roty += 5.0;
+ break;
+ case EGLUT_KEY_RIGHT:
+ view_roty -= 5.0;
+ break;
+ case EGLUT_KEY_UP:
+ view_rotx += 5.0;
+ break;
+ case EGLUT_KEY_DOWN:
+ view_rotx -= 5.0;
+ break;
+ default:
+ break;
+ }
+}
+
+int
+main(int argc, char *argv[])
+{
+ eglutInitWindowSize(300, 300);
+ eglutInitAPIMask(EGLUT_OPENGL_BIT);
+ eglutInit(argc, argv);
+
+ eglutCreateWindow("egltri");
+
+ eglutReshapeFunc(reshape);
+ eglutDisplayFunc(draw);
+ eglutSpecialFunc(special_key);
+
+ init();
+
+ eglutMainLoop();
+
+ return 0;
+}
diff --git a/progs/egl/opengl/peglgears.c b/progs/egl/opengl/peglgears.c
new file mode 100644
index 00000000000..212d1acf692
--- /dev/null
+++ b/progs/egl/opengl/peglgears.c
@@ -0,0 +1,451 @@
+/*
+ * 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.
+ */
+
+/*
+ * This is a port of the infamous "glxgears" demo to straight EGL
+ * Port by Dane Rushton 10 July 2005
+ *
+ * No command line options.
+ * Program runs for 5 seconds then exits, outputing framerate to console
+ */
+
+#define EGL_EGLEXT_PROTOTYPES
+
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <GL/gl.h>
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+
+#define MAX_CONFIGS 10
+#define MAX_MODES 100
+
+#define BENCHMARK
+
+#ifdef BENCHMARK
+
+/* XXX this probably isn't very portable */
+
+#include <sys/time.h>
+#include <unistd.h>
+
+/* return current time (in seconds) */
+static double
+current_time(void)
+{
+ struct timeval tv;
+#ifdef __VMS
+ (void) gettimeofday(&tv, NULL );
+#else
+ struct timezone tz;
+ (void) gettimeofday(&tv, &tz);
+#endif
+ return (double) tv.tv_sec + tv.tv_usec / 1000000.0;
+}
+
+#else /*BENCHMARK*/
+
+/* dummy */
+static double
+current_time(void)
+{
+ /* update this function for other platforms! */
+ static double t = 0.0;
+ static int warn = 1;
+ if (warn) {
+ fprintf(stderr, "Warning: current_time() not implemented!!\n");
+ warn = 0;
+ }
+ return t += 1.0;
+}
+
+#endif /*BENCHMARK*/
+
+
+#ifndef M_PI
+#define M_PI 3.14159265
+#endif
+
+
+static GLfloat view_rotx = 20.0, view_roty = 30.0, view_rotz = 0.0;
+static GLint gear1, gear2, gear3;
+static GLfloat angle = 0.0;
+
+#if 0
+static GLfloat eyesep = 5.0; /* Eye separation. */
+static GLfloat fix_point = 40.0; /* Fixation point distance. */
+static GLfloat left, right, asp; /* Stereo frustum params. */
+#endif
+
+
+/*
+ *
+ * Draw a gear wheel. You'll probably want to call this function when
+ * building a display list since we do a lot of trig here.
+ *
+ * Input: inner_radius - radius of hole at center
+ * outer_radius - radius at center of teeth
+ * width - width of gear
+ * teeth - number of teeth
+ * tooth_depth - depth of tooth
+ */
+static void
+gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width,
+ GLint teeth, GLfloat tooth_depth)
+{
+ GLint i;
+ GLfloat r0, r1, r2;
+ GLfloat angle, da;
+ GLfloat u, v, len;
+
+ r0 = inner_radius;
+ r1 = outer_radius - tooth_depth / 2.0;
+ r2 = outer_radius + tooth_depth / 2.0;
+
+ da = 2.0 * M_PI / teeth / 4.0;
+
+ glShadeModel(GL_FLAT);
+
+ glNormal3f(0.0, 0.0, 1.0);
+
+ /* draw front face */
+ glBegin(GL_QUAD_STRIP);
+ for (i = 0; i <= teeth; i++) {
+ angle = i * 2.0 * M_PI / teeth;
+ glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
+ glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
+ if (i < teeth) {
+ glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
+ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+ width * 0.5);
+ }
+ }
+ glEnd();
+
+ /* draw front sides of teeth */
+ glBegin(GL_QUADS);
+ da = 2.0 * M_PI / teeth / 4.0;
+ for (i = 0; i < teeth; i++) {
+ angle = i * 2.0 * M_PI / teeth;
+
+ glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
+ glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5);
+ glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
+ width * 0.5);
+ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+ width * 0.5);
+ }
+ glEnd();
+
+ glNormal3f(0.0, 0.0, -1.0);
+
+ /* draw back face */
+ glBegin(GL_QUAD_STRIP);
+ for (i = 0; i <= teeth; i++) {
+ angle = i * 2.0 * M_PI / teeth;
+ glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
+ glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
+ if (i < teeth) {
+ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+ -width * 0.5);
+ glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
+ }
+ }
+ glEnd();
+
+ /* draw back sides of teeth */
+ glBegin(GL_QUADS);
+ da = 2.0 * M_PI / teeth / 4.0;
+ for (i = 0; i < teeth; i++) {
+ angle = i * 2.0 * M_PI / teeth;
+
+ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+ -width * 0.5);
+ glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
+ -width * 0.5);
+ glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5);
+ glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
+ }
+ glEnd();
+
+ /* draw outward faces of teeth */
+ glBegin(GL_QUAD_STRIP);
+ for (i = 0; i < teeth; i++) {
+ angle = i * 2.0 * M_PI / teeth;
+
+ glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
+ glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
+ u = r2 * cos(angle + da) - r1 * cos(angle);
+ v = r2 * sin(angle + da) - r1 * sin(angle);
+ len = sqrt(u * u + v * v);
+ u /= len;
+ v /= len;
+ glNormal3f(v, -u, 0.0);
+ glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5);
+ glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5);
+ glNormal3f(cos(angle), sin(angle), 0.0);
+ glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
+ width * 0.5);
+ glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
+ -width * 0.5);
+ u = r1 * cos(angle + 3 * da) - r2 * cos(angle + 2 * da);
+ v = r1 * sin(angle + 3 * da) - r2 * sin(angle + 2 * da);
+ glNormal3f(v, -u, 0.0);
+ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+ width * 0.5);
+ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+ -width * 0.5);
+ glNormal3f(cos(angle), sin(angle), 0.0);
+ }
+
+ glVertex3f(r1 * cos(0), r1 * sin(0), width * 0.5);
+ glVertex3f(r1 * cos(0), r1 * sin(0), -width * 0.5);
+
+ glEnd();
+
+ glShadeModel(GL_SMOOTH);
+
+ /* draw inside radius cylinder */
+ glBegin(GL_QUAD_STRIP);
+ for (i = 0; i <= teeth; i++) {
+ angle = i * 2.0 * M_PI / teeth;
+ glNormal3f(-cos(angle), -sin(angle), 0.0);
+ glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
+ glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
+ }
+ glEnd();
+}
+
+
+static void
+draw(void)
+{
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glPushMatrix();
+ glRotatef(view_rotx, 1.0, 0.0, 0.0);
+ glRotatef(view_roty, 0.0, 1.0, 0.0);
+ glRotatef(view_rotz, 0.0, 0.0, 1.0);
+
+ glPushMatrix();
+ glTranslatef(-3.0, -2.0, 0.0);
+ glRotatef(angle, 0.0, 0.0, 1.0);
+ glCallList(gear1);
+ glPopMatrix();
+
+ glPushMatrix();
+ glTranslatef(3.1, -2.0, 0.0);
+ glRotatef(-2.0 * angle - 9.0, 0.0, 0.0, 1.0);
+ glCallList(gear2);
+ glPopMatrix();
+
+ glPushMatrix();
+ glTranslatef(-3.1, 4.2, 0.0);
+ glRotatef(-2.0 * angle - 25.0, 0.0, 0.0, 1.0);
+ glCallList(gear3);
+ glPopMatrix();
+
+ glPopMatrix();
+}
+
+
+/* new window size or exposure */
+static void
+reshape(int width, int height)
+{
+ GLfloat h = (GLfloat) height / (GLfloat) width;
+
+ glViewport(0, 0, (GLint) width, (GLint) height);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustum(-1.0, 1.0, -h, h, 5.0, 60.0);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -40.0);
+}
+
+
+
+static void
+init(void)
+{
+ static GLfloat pos[4] = { 5.0, 5.0, 10.0, 0.0 };
+ static GLfloat red[4] = { 0.8, 0.1, 0.0, 1.0 };
+ static GLfloat green[4] = { 0.0, 0.8, 0.2, 1.0 };
+ static GLfloat blue[4] = { 0.2, 0.2, 1.0, 1.0 };
+
+ glLightfv(GL_LIGHT0, GL_POSITION, pos);
+ glEnable(GL_CULL_FACE);
+ glEnable(GL_LIGHTING);
+ glEnable(GL_LIGHT0);
+ glEnable(GL_DEPTH_TEST);
+
+ /* make the gears */
+ gear1 = glGenLists(1);
+ glNewList(gear1, GL_COMPILE);
+ glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, red);
+ gear(1.0, 4.0, 1.0, 20, 0.7);
+ glEndList();
+
+ gear2 = glGenLists(1);
+ glNewList(gear2, GL_COMPILE);
+ glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green);
+ gear(0.5, 2.0, 2.0, 10, 0.7);
+ glEndList();
+
+ gear3 = glGenLists(1);
+ glNewList(gear3, GL_COMPILE);
+ glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, blue);
+ gear(1.3, 2.0, 0.5, 10, 0.7);
+ glEndList();
+
+ glEnable(GL_NORMALIZE);
+}
+
+
+
+
+static void run_gears(EGLDisplay dpy, EGLSurface surf, int ttr)
+{
+ double st = current_time();
+ double ct = st;
+ int frames = 0;
+ GLfloat seconds, fps;
+
+ while (ct - st < ttr)
+ {
+ double tt = current_time();
+ double dt = tt - ct;
+ ct = tt;
+
+ /* advance rotation for next frame */
+ angle += 70.0 * dt; /* 70 degrees per second */
+ if (angle > 3600.0)
+ angle -= 3600.0;
+
+ draw();
+
+ eglSwapBuffers(dpy, surf);
+
+
+ frames++;
+ }
+
+ seconds = ct - st;
+ fps = frames / seconds;
+ printf("%d frames in %3.1f seconds = %6.3f FPS\n", frames, seconds, fps);
+
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ int major, minor;
+ EGLContext ctx;
+ EGLSurface surface;
+ EGLConfig configs[MAX_CONFIGS];
+ EGLint numConfigs, i;
+ EGLBoolean b;
+ EGLDisplay d;
+ EGLint screenAttribs[10];
+ GLboolean printInfo = GL_FALSE;
+ EGLint width = 300, height = 300;
+
+ /* parse cmd line args */
+ for (i = 1; i < argc; i++)
+ {
+ if (strcmp(argv[i], "-info") == 0)
+ {
+ printInfo = GL_TRUE;
+ }
+ else
+ printf("Warning: unknown parameter: %s\n", argv[i]);
+ }
+
+ /* DBR : Create EGL context/surface etc */
+ d = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+ assert(d);
+
+ if (!eglInitialize(d, &major, &minor)) {
+ printf("peglgears: eglInitialize failed\n");
+ return 0;
+ }
+
+ printf("peglgears: EGL version = %d.%d\n", major, minor);
+ printf("peglgears: EGL_VENDOR = %s\n", eglQueryString(d, EGL_VENDOR));
+
+ eglGetConfigs(d, configs, MAX_CONFIGS, &numConfigs);
+
+ eglBindAPI(EGL_OPENGL_API);
+
+ ctx = eglCreateContext(d, configs[0], EGL_NO_CONTEXT, NULL);
+ if (ctx == EGL_NO_CONTEXT) {
+ printf("peglgears: failed to create context\n");
+ return 0;
+ }
+
+ /* build up screenAttribs array */
+ i = 0;
+ screenAttribs[i++] = EGL_WIDTH;
+ screenAttribs[i++] = width;
+ screenAttribs[i++] = EGL_HEIGHT;
+ screenAttribs[i++] = height;
+ screenAttribs[i++] = EGL_NONE;
+
+ surface = eglCreatePbufferSurface(d, configs[0], screenAttribs);
+ if (surface == EGL_NO_SURFACE) {
+ printf("peglgears: failed to create pbuffer surface\n");
+ return 0;
+ }
+
+ b = eglMakeCurrent(d, surface, surface, ctx);
+ if (!b) {
+ printf("peglgears: make current failed\n");
+ return 0;
+ }
+
+ 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();
+ reshape(width, height);
+
+ glDrawBuffer( GL_BACK );
+
+ run_gears(d, surface, 5.0);
+
+ eglDestroySurface(d, surface);
+ eglDestroyContext(d, ctx);
+ eglTerminate(d);
+
+ return 0;
+}
diff --git a/progs/egl/opengl/xeglgears.c b/progs/egl/opengl/xeglgears.c
new file mode 100644
index 00000000000..a6a977d9fff
--- /dev/null
+++ b/progs/egl/opengl/xeglgears.c
@@ -0,0 +1,954 @@
+/*
+ * 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.
+ */
+
+/*
+ * Ported to X/EGL/GLES. XXX Actually, uses full OpenGL ATM.
+ * Brian Paul
+ * 30 May 2008
+ */
+
+/*
+ * Command line options:
+ * -info print GL implementation information
+ *
+ */
+
+
+#define GL_GLEXT_PROTOTYPES
+#define EGL_EGLEXT_PROTOTYPES
+
+#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 <GL/gl.h>
+#include <EGL/egl.h>
+
+#include <EGL/eglext.h>
+
+
+#define BENCHMARK
+
+#ifdef BENCHMARK
+
+/* XXX this probably isn't very portable */
+
+#include <sys/time.h>
+#include <unistd.h>
+
+/* return current time (in seconds) */
+static double
+current_time(void)
+{
+ struct timeval tv;
+#ifdef __VMS
+ (void) gettimeofday(&tv, NULL );
+#else
+ struct timezone tz;
+ (void) gettimeofday(&tv, &tz);
+#endif
+ return (double) tv.tv_sec + tv.tv_usec / 1000000.0;
+}
+
+#else /*BENCHMARK*/
+
+/* dummy */
+static double
+current_time(void)
+{
+ /* update this function for other platforms! */
+ static double t = 0.0;
+ static int warn = 1;
+ if (warn) {
+ fprintf(stderr, "Warning: current_time() not implemented!!\n");
+ warn = 0;
+ }
+ return t += 1.0;
+}
+
+#endif /*BENCHMARK*/
+
+
+
+#ifndef M_PI
+#define M_PI 3.14159265
+#endif
+
+
+static GLfloat view_rotx = 20.0, view_roty = 30.0, view_rotz = 0.0;
+static GLint gear1, gear2, gear3;
+static GLfloat angle = 0.0;
+
+/*
+ *
+ * Draw a gear wheel. You'll probably want to call this function when
+ * building a display list since we do a lot of trig here.
+ *
+ * Input: inner_radius - radius of hole at center
+ * outer_radius - radius at center of teeth
+ * width - width of gear
+ * teeth - number of teeth
+ * tooth_depth - depth of tooth
+ */
+static void
+gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width,
+ GLint teeth, GLfloat tooth_depth)
+{
+ GLint i;
+ GLfloat r0, r1, r2;
+ GLfloat angle, da;
+ GLfloat u, v, len;
+
+ r0 = inner_radius;
+ r1 = outer_radius - tooth_depth / 2.0;
+ r2 = outer_radius + tooth_depth / 2.0;
+
+ da = 2.0 * M_PI / teeth / 4.0;
+
+ glShadeModel(GL_FLAT);
+
+ glNormal3f(0.0, 0.0, 1.0);
+
+ /* draw front face */
+ glBegin(GL_QUAD_STRIP);
+ for (i = 0; i <= teeth; i++) {
+ angle = i * 2.0 * M_PI / teeth;
+ glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
+ glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
+ if (i < teeth) {
+ glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
+ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+ width * 0.5);
+ }
+ }
+ glEnd();
+
+ /* draw front sides of teeth */
+ glBegin(GL_QUADS);
+ da = 2.0 * M_PI / teeth / 4.0;
+ for (i = 0; i < teeth; i++) {
+ angle = i * 2.0 * M_PI / teeth;
+
+ glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
+ glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5);
+ glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
+ width * 0.5);
+ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+ width * 0.5);
+ }
+ glEnd();
+
+ glNormal3f(0.0, 0.0, -1.0);
+
+ /* draw back face */
+ glBegin(GL_QUAD_STRIP);
+ for (i = 0; i <= teeth; i++) {
+ angle = i * 2.0 * M_PI / teeth;
+ glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
+ glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
+ if (i < teeth) {
+ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+ -width * 0.5);
+ glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
+ }
+ }
+ glEnd();
+
+ /* draw back sides of teeth */
+ glBegin(GL_QUADS);
+ da = 2.0 * M_PI / teeth / 4.0;
+ for (i = 0; i < teeth; i++) {
+ angle = i * 2.0 * M_PI / teeth;
+
+ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+ -width * 0.5);
+ glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
+ -width * 0.5);
+ glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5);
+ glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
+ }
+ glEnd();
+
+ /* draw outward faces of teeth */
+ glBegin(GL_QUAD_STRIP);
+ for (i = 0; i < teeth; i++) {
+ angle = i * 2.0 * M_PI / teeth;
+
+ glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
+ glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
+ u = r2 * cos(angle + da) - r1 * cos(angle);
+ v = r2 * sin(angle + da) - r1 * sin(angle);
+ len = sqrt(u * u + v * v);
+ u /= len;
+ v /= len;
+ glNormal3f(v, -u, 0.0);
+ glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5);
+ glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5);
+ glNormal3f(cos(angle), sin(angle), 0.0);
+ glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
+ width * 0.5);
+ glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
+ -width * 0.5);
+ u = r1 * cos(angle + 3 * da) - r2 * cos(angle + 2 * da);
+ v = r1 * sin(angle + 3 * da) - r2 * sin(angle + 2 * da);
+ glNormal3f(v, -u, 0.0);
+ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+ width * 0.5);
+ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+ -width * 0.5);
+ glNormal3f(cos(angle), sin(angle), 0.0);
+ }
+
+ glVertex3f(r1 * cos(0), r1 * sin(0), width * 0.5);
+ glVertex3f(r1 * cos(0), r1 * sin(0), -width * 0.5);
+
+ glEnd();
+
+ glShadeModel(GL_SMOOTH);
+
+ /* draw inside radius cylinder */
+ glBegin(GL_QUAD_STRIP);
+ for (i = 0; i <= teeth; i++) {
+ angle = i * 2.0 * M_PI / teeth;
+ glNormal3f(-cos(angle), -sin(angle), 0.0);
+ glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
+ glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
+ }
+ glEnd();
+}
+
+
+static void
+draw(void)
+{
+ glClearColor(0.2, 0.2, 0.2, 0.2);
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glPushMatrix();
+ glRotatef(view_rotx, 1.0, 0.0, 0.0);
+ glRotatef(view_roty, 0.0, 1.0, 0.0);
+ glRotatef(view_rotz, 0.0, 0.0, 1.0);
+
+ glPushMatrix();
+ glTranslatef(-3.0, -2.0, 0.0);
+ glRotatef(angle, 0.0, 0.0, 1.0);
+ glCallList(gear1);
+ glPopMatrix();
+
+ glPushMatrix();
+ glTranslatef(3.1, -2.0, 0.0);
+ glRotatef(-2.0 * angle - 9.0, 0.0, 0.0, 1.0);
+ glCallList(gear2);
+ glPopMatrix();
+
+ glPushMatrix();
+ glTranslatef(-3.1, 4.2, 0.0);
+ glRotatef(-2.0 * angle - 25.0, 0.0, 0.0, 1.0);
+ glCallList(gear3);
+ glPopMatrix();
+
+ 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();
+ glFrustum(-ar, ar, -1, 1, 5.0, 60.0);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -40.0);
+}
+
+
+
+static void
+init(void)
+{
+ static GLfloat pos[4] = { 5.0, 5.0, 10.0, 0.0 };
+ static GLfloat red[4] = { 0.8, 0.1, 0.0, 1.0 };
+ static GLfloat green[4] = { 0.0, 0.8, 0.2, 1.0 };
+ static GLfloat blue[4] = { 0.2, 0.2, 1.0, 1.0 };
+
+ glLightfv(GL_LIGHT0, GL_POSITION, pos);
+ glEnable(GL_CULL_FACE);
+ glEnable(GL_LIGHTING);
+ glEnable(GL_LIGHT0);
+ glEnable(GL_DEPTH_TEST);
+
+ /* make the gears */
+ gear1 = glGenLists(1);
+ glNewList(gear1, GL_COMPILE);
+ glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, red);
+ gear(1.0, 4.0, 1.0, 20, 0.7);
+ glEndList();
+
+ gear2 = glGenLists(1);
+ glNewList(gear2, GL_COMPILE);
+ glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green);
+ gear(0.5, 2.0, 2.0, 10, 0.7);
+ glEndList();
+
+ gear3 = glGenLists(1);
+ glNewList(gear3, GL_COMPILE);
+ glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, blue);
+ gear(1.3, 2.0, 0.5, 10, 0.7);
+ glEndList();
+
+ glEnable(GL_NORMALIZE);
+}
+
+
+struct egl_manager {
+ EGLNativeDisplayType xdpy;
+ EGLNativeWindowType xwin;
+ EGLNativePixmapType xpix;
+
+ EGLDisplay dpy;
+ EGLConfig conf;
+ EGLContext ctx;
+
+ EGLSurface win;
+ EGLSurface pix;
+ EGLSurface pbuf;
+ EGLImageKHR image;
+
+ EGLBoolean verbose;
+ EGLint major, minor;
+
+ GC gc;
+ GLuint fbo;
+};
+
+static struct egl_manager *
+egl_manager_new(EGLNativeDisplayType xdpy, const EGLint *attrib_list,
+ EGLBoolean verbose)
+{
+ struct egl_manager *eman;
+ const char *ver;
+ EGLint num_conf;
+
+ eman = calloc(1, sizeof(*eman));
+ if (!eman)
+ return NULL;
+
+ eman->verbose = verbose;
+ eman->xdpy = xdpy;
+
+ eman->dpy = eglGetDisplay(eman->xdpy);
+ if (eman->dpy == EGL_NO_DISPLAY) {
+ printf("eglGetDisplay() failed\n");
+ free(eman);
+ return NULL;
+ }
+
+ if (!eglInitialize(eman->dpy, &eman->major, &eman->minor)) {
+ printf("eglInitialize() failed\n");
+ free(eman);
+ return NULL;
+ }
+
+ ver = eglQueryString(eman->dpy, EGL_VERSION);
+ printf("EGL_VERSION = %s\n", ver);
+
+ if (!eglChooseConfig(eman->dpy, attrib_list, &eman->conf, 1, &num_conf) ||
+ !num_conf) {
+ printf("eglChooseConfig() failed\n");
+ eglTerminate(eman->dpy);
+ free(eman);
+ return NULL;
+ }
+
+ eman->ctx = eglCreateContext(eman->dpy, eman->conf, EGL_NO_CONTEXT, NULL);
+ if (eman->ctx == EGL_NO_CONTEXT) {
+ printf("eglCreateContext() failed\n");
+ eglTerminate(eman->dpy);
+ free(eman);
+ return NULL;
+ }
+
+ return eman;
+}
+
+static EGLBoolean
+egl_manager_create_window(struct egl_manager *eman, const char *name,
+ EGLint w, EGLint h, EGLBoolean need_surface,
+ EGLBoolean fullscreen, const EGLint *attrib_list)
+{
+ XVisualInfo vinfo_template, *vinfo = NULL;
+ EGLint val, num_vinfo;
+ Window root;
+ XSetWindowAttributes attrs;
+ unsigned long mask;
+ EGLint x = 0, y = 0;
+
+ if (!eglGetConfigAttrib(eman->dpy, eman->conf,
+ EGL_NATIVE_VISUAL_ID, &val)) {
+ printf("eglGetConfigAttrib() failed\n");
+ return EGL_FALSE;
+ }
+ if (val) {
+ vinfo_template.visualid = (VisualID) val;
+ vinfo = XGetVisualInfo(eman->xdpy, VisualIDMask, &vinfo_template, &num_vinfo);
+ }
+ /* try harder if window surface is not needed */
+ if (!vinfo && !need_surface &&
+ eglGetConfigAttrib(eman->dpy, eman->conf, EGL_BUFFER_SIZE, &val)) {
+ if (val == 32)
+ val = 24;
+ vinfo_template.depth = val;
+ vinfo = XGetVisualInfo(eman->xdpy, VisualDepthMask, &vinfo_template, &num_vinfo);
+ }
+
+ if (!vinfo) {
+ printf("XGetVisualInfo() failed\n");
+ return EGL_FALSE;
+ }
+
+ root = DefaultRootWindow(eman->xdpy);
+ if (fullscreen) {
+ x = y = 0;
+ w = DisplayWidth(eman->xdpy, DefaultScreen(eman->xdpy));
+ h = DisplayHeight(eman->xdpy, DefaultScreen(eman->xdpy));
+ }
+
+ /* window attributes */
+ attrs.background_pixel = 0;
+ attrs.border_pixel = 0;
+ attrs.colormap = XCreateColormap(eman->xdpy, root, vinfo->visual, AllocNone);
+ attrs.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+ attrs.override_redirect = fullscreen;
+ mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask | CWOverrideRedirect;
+
+ eman->xwin = XCreateWindow(eman->xdpy, root, x, y, w, h,
+ 0, vinfo->depth, InputOutput,
+ vinfo->visual, mask, &attrs);
+ XFree(vinfo);
+
+ /* set hints and properties */
+ {
+ XSizeHints sizehints;
+ sizehints.x = x;
+ sizehints.y = y;
+ sizehints.width = w;
+ sizehints.height = h;
+ sizehints.flags = USSize | USPosition;
+ XSetNormalHints(eman->xdpy, eman->xwin, &sizehints);
+ XSetStandardProperties(eman->xdpy, eman->xwin, name, name,
+ None, (char **)NULL, 0, &sizehints);
+ }
+
+ if (need_surface) {
+ eman->win = eglCreateWindowSurface(eman->dpy, eman->conf,
+ eman->xwin, attrib_list);
+ if (eman->win == EGL_NO_SURFACE) {
+ printf("eglCreateWindowSurface() failed\n");
+ XDestroyWindow(eman->xdpy, eman->xwin);
+ eman->xwin = None;
+ return EGL_FALSE;
+ }
+ }
+
+ eman->gc = XCreateGC(eman->xdpy, eman->xwin, 0, NULL);
+
+ XMapWindow(eman->xdpy, eman->xwin);
+
+ return EGL_TRUE;
+}
+
+static EGLBoolean
+egl_manager_create_pixmap(struct egl_manager *eman, EGLNativeWindowType xwin,
+ EGLBoolean need_surface, const EGLint *attrib_list)
+{
+ XWindowAttributes attrs;
+
+ if (!XGetWindowAttributes(eman->xdpy, xwin, &attrs)) {
+ printf("XGetWindowAttributes() failed\n");
+ return EGL_FALSE;
+ }
+
+ eman->xpix = XCreatePixmap(eman->xdpy, xwin,
+ attrs.width, attrs.height, attrs.depth);
+
+ if (need_surface) {
+ eman->pix = eglCreatePixmapSurface(eman->dpy, eman->conf,
+ eman->xpix, attrib_list);
+ if (eman->pix == EGL_NO_SURFACE) {
+ printf("eglCreatePixmapSurface() failed\n");
+ XFreePixmap(eman->xdpy, eman->xpix);
+ eman->xpix = None;
+ return EGL_FALSE;
+ }
+ }
+
+ return EGL_TRUE;
+}
+
+static EGLBoolean
+egl_manager_create_pbuffer(struct egl_manager *eman, const EGLint *attrib_list)
+{
+ eman->pbuf = eglCreatePbufferSurface(eman->dpy, eman->conf, attrib_list);
+ if (eman->pbuf == EGL_NO_SURFACE) {
+ printf("eglCreatePbufferSurface() failed\n");
+ return EGL_FALSE;
+ }
+
+ return EGL_TRUE;
+}
+
+static void
+egl_manager_destroy(struct egl_manager *eman)
+{
+ eglMakeCurrent(eman->dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+ eglTerminate(eman->dpy);
+
+ if (eman->xwin != None)
+ XDestroyWindow(eman->xdpy, eman->xwin);
+ if (eman->xpix != None)
+ XFreePixmap(eman->xdpy, eman->xpix);
+
+ XFreeGC(eman->xdpy, eman->gc);
+
+ free(eman);
+}
+
+enum {
+ GEARS_WINDOW,
+ GEARS_PIXMAP,
+ GEARS_PIXMAP_TEXTURE,
+ GEARS_PBUFFER,
+ GEARS_PBUFFER_TEXTURE,
+ GEARS_RENDERBUFFER
+};
+
+static void
+texture_gears(struct egl_manager *eman, int surface_type)
+{
+ static const GLint verts[12] =
+ { -5, -6, -10, 5, -6, -10, -5, 4, 10, 5, 4, 10 };
+ static const GLint tex_coords[8] = { 0, 0, 1, 0, 0, 1, 1, 1 };
+
+ eglMakeCurrent(eman->dpy, eman->win, eman->win, eman->ctx);
+
+ glClearColor(0, 0, 0, 0);
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glEnable(GL_TEXTURE_2D);
+ glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_REPEAT);
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+ glVertexPointer(3, GL_INT, 0, verts);
+ glTexCoordPointer(2, GL_INT, 0, tex_coords);
+
+ if (surface_type == GEARS_PBUFFER_TEXTURE)
+ eglBindTexImage(eman->dpy, eman->pbuf, EGL_BACK_BUFFER);
+
+ glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+
+ glDisableClientState(GL_VERTEX_ARRAY);
+ glDisableClientState(GL_COLOR_ARRAY);
+ glDisable(GL_TEXTURE_2D);
+
+ if (surface_type == GEARS_PBUFFER_TEXTURE)
+ eglReleaseTexImage(eman->dpy, eman->pbuf, EGL_BACK_BUFFER);
+
+ eglSwapBuffers(eman->dpy, eman->win);
+}
+
+static void
+copy_gears(struct egl_manager *eman,
+ EGLint tile_w, EGLint tile_h, EGLint w, EGLint h)
+{
+ int x, y;
+
+ eglWaitClient();
+
+ for (x = 0; x < w; x += tile_w) {
+ for (y = 0; y < h; y += tile_h) {
+
+ XCopyArea(eman->xdpy, eman->xpix, eman->xwin, eman->gc,
+ 0, 0, tile_w, tile_h, x, y);
+ }
+ }
+}
+
+static void
+event_loop(struct egl_manager *eman, EGLint surface_type, EGLint w, EGLint h)
+{
+ int window_w = w, window_h = h;
+
+ if (surface_type == EGL_PBUFFER_BIT)
+ printf("there will be no screen update if "
+ "eglCopyBuffers() is not implemented\n");
+
+ while (1) {
+ while (XPending(eman->xdpy) > 0) {
+ XEvent event;
+ XNextEvent(eman->xdpy, &event);
+ switch (event.type) {
+ case Expose:
+ /* we'll redraw below */
+ break;
+ case ConfigureNotify:
+ window_w = event.xconfigure.width;
+ window_h = event.xconfigure.height;
+ if (surface_type == EGL_WINDOW_BIT)
+ reshape(window_w, window_h);
+ 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;
+ }
+ }
+ }
+ }
+ }
+
+ {
+ static int frames = 0;
+ static double tRot0 = -1.0, tRate0 = -1.0;
+ double dt, t = current_time();
+ if (tRot0 < 0.0)
+ tRot0 = t;
+ dt = t - tRot0;
+ tRot0 = t;
+
+ /* advance rotation for next frame */
+ angle += 70.0 * dt; /* 70 degrees per second */
+ if (angle > 3600.0)
+ angle -= 3600.0;
+
+ switch (surface_type) {
+ case GEARS_WINDOW:
+ draw();
+ eglSwapBuffers(eman->dpy, eman->win);
+ break;
+
+ case GEARS_PBUFFER:
+ draw();
+ if (!eglCopyBuffers(eman->dpy, eman->pbuf, eman->xpix))
+ break;
+ copy_gears(eman, w, h, window_w, window_h);
+ break;
+
+ case GEARS_PBUFFER_TEXTURE:
+ eglMakeCurrent(eman->dpy, eman->pbuf, eman->pbuf, eman->ctx);
+ draw();
+ texture_gears(eman, surface_type);
+ break;
+
+ case GEARS_PIXMAP:
+ draw();
+ copy_gears(eman, w, h, window_w, window_h);
+ break;
+
+ case GEARS_PIXMAP_TEXTURE:
+ eglMakeCurrent(eman->dpy, eman->pix, eman->pix, eman->ctx);
+ draw();
+ texture_gears(eman, surface_type);
+ break;
+
+ case GEARS_RENDERBUFFER:
+ glBindFramebuffer(GL_FRAMEBUFFER_EXT, eman->fbo);
+ draw();
+ glBindFramebuffer(GL_FRAMEBUFFER_EXT, 0);
+ texture_gears(eman, surface_type);
+ break;
+ }
+
+ frames++;
+
+ if (tRate0 < 0.0)
+ tRate0 = t;
+ if (t - tRate0 >= 5.0) {
+ GLfloat seconds = t - tRate0;
+ GLfloat fps = frames / seconds;
+ printf("%d frames in %3.1f seconds = %6.3f FPS\n", frames, seconds,
+ fps);
+ tRate0 = t;
+ frames = 0;
+ }
+ }
+ }
+}
+
+
+static void
+usage(void)
+{
+ printf("Usage:\n");
+ printf(" -display <displayname> set the display to run on\n");
+ printf(" -fullscreen run in fullscreen mode\n");
+ printf(" -info display OpenGL renderer info\n");
+ printf(" -pixmap use pixmap surface\n");
+ printf(" -pixmap-texture use pixmap surface and texture using EGLImage\n");
+ printf(" -pbuffer use pbuffer surface and eglCopyBuffers\n");
+ printf(" -pbuffer-texture use pbuffer surface and eglBindTexImage\n");
+ printf(" -renderbuffer renderbuffer as EGLImage and bind as texture from\n");
+}
+
+static const char *names[] = {
+ "window",
+ "pixmap",
+ "pixmap_texture",
+ "pbuffer",
+ "pbuffer_texture",
+ "renderbuffer"
+};
+
+int
+main(int argc, char *argv[])
+{
+ const int winWidth = 300, winHeight = 300;
+ Display *x_dpy;
+ char *dpyName = NULL;
+ struct egl_manager *eman;
+ EGLint attribs[] = {
+ EGL_SURFACE_TYPE, EGL_WINDOW_BIT, /* may be changed later */
+ EGL_RED_SIZE, 1,
+ EGL_GREEN_SIZE, 1,
+ EGL_BLUE_SIZE, 1,
+ EGL_DEPTH_SIZE, 1,
+ EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
+ EGL_NONE
+ };
+ char win_title[] = "xeglgears (window/pixmap/pbuffer)";
+ EGLint surface_type = GEARS_WINDOW;
+ GLboolean printInfo = GL_FALSE;
+ GLboolean fullscreen = GL_FALSE;
+ EGLBoolean ret;
+ GLuint texture, color_rb, depth_rb;
+ int i;
+
+ 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 if (strcmp(argv[i], "-fullscreen") == 0) {
+ fullscreen = GL_TRUE;
+ }
+ else if (strcmp(argv[i], "-pixmap") == 0) {
+ surface_type = GEARS_PIXMAP;
+ attribs[1] = EGL_PIXMAP_BIT;
+ }
+ else if (strcmp(argv[i], "-pixmap-texture") == 0) {
+ surface_type = GEARS_PIXMAP_TEXTURE;
+ attribs[1] = EGL_PIXMAP_BIT;
+ }
+ else if (strcmp(argv[i], "-pbuffer") == 0) {
+ surface_type = GEARS_PBUFFER;
+ attribs[1] = EGL_PBUFFER_BIT;
+ }
+ else if (strcmp(argv[i], "-pbuffer-texture") == 0) {
+ surface_type = GEARS_PBUFFER_TEXTURE;
+ attribs[1] = EGL_PBUFFER_BIT;
+ }
+ else if (strcmp(argv[i], "-renderbuffer") == 0) {
+ surface_type = GEARS_RENDERBUFFER;
+ }
+ 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;
+ }
+
+ eglBindAPI(EGL_OPENGL_API);
+
+ eman = egl_manager_new(x_dpy, attribs, printInfo);
+ if (!eman) {
+ XCloseDisplay(x_dpy);
+ return -1;
+ }
+
+ snprintf(win_title, sizeof(win_title),
+ "xeglgears (%s)", names[surface_type]);
+
+ ret = egl_manager_create_window(eman, win_title, winWidth, winHeight,
+ EGL_TRUE, fullscreen, NULL);
+ if (!ret)
+ return -1;
+
+ /* create surface(s) */
+ switch (surface_type) {
+ case GEARS_WINDOW:
+ if (ret)
+ ret = eglMakeCurrent(eman->dpy, eman->win, eman->win, eman->ctx);
+ break;
+ case GEARS_PIXMAP:
+ case GEARS_PIXMAP_TEXTURE:
+ ret = egl_manager_create_pixmap(eman, eman->xwin, EGL_TRUE, NULL);
+ if (surface_type == GEARS_PIXMAP_TEXTURE)
+ eman->image = eglCreateImageKHR (eman->dpy, eman->ctx,
+ EGL_NATIVE_PIXMAP_KHR,
+ (EGLClientBuffer) eman->xpix, NULL);
+ if (ret)
+ ret = eglMakeCurrent(eman->dpy, eman->pix, eman->pix, eman->ctx);
+ break;
+ case GEARS_PBUFFER:
+ case GEARS_PBUFFER_TEXTURE:
+ {
+ EGLint pbuf_attribs[] = {
+ EGL_WIDTH, winWidth,
+ EGL_HEIGHT, winHeight,
+ EGL_TEXTURE_FORMAT, EGL_TEXTURE_RGB,
+ EGL_TEXTURE_TARGET, EGL_TEXTURE_2D,
+ EGL_NONE
+ };
+ ret = (egl_manager_create_pixmap(eman, eman->xwin,
+ EGL_TRUE, NULL) &&
+ egl_manager_create_pbuffer(eman, pbuf_attribs));
+ if (ret)
+ ret = eglMakeCurrent(eman->dpy, eman->pbuf, eman->pbuf, eman->ctx);
+ }
+ break;
+
+
+ case GEARS_RENDERBUFFER:
+ ret = eglMakeCurrent(eman->dpy, eman->win, eman->win, eman->ctx);
+ if (ret == EGL_FALSE)
+ printf("failed to make context current\n");
+
+ glGenFramebuffers(1, &eman->fbo);
+ glBindFramebuffer(GL_FRAMEBUFFER_EXT, eman->fbo);
+
+ glGenRenderbuffers(1, &color_rb);
+ glBindRenderbuffer(GL_RENDERBUFFER_EXT, color_rb);
+ glRenderbufferStorage(GL_RENDERBUFFER_EXT, GL_RGBA, winWidth, winHeight);
+ glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
+ GL_COLOR_ATTACHMENT0_EXT,
+ GL_RENDERBUFFER_EXT,
+ color_rb);
+
+ eman->image = eglCreateImageKHR(eman->dpy, eman->ctx,
+ EGL_GL_RENDERBUFFER_KHR,
+ (EGLClientBuffer) color_rb, NULL);
+
+ glGenRenderbuffers(1, &depth_rb);
+ glBindRenderbuffer(GL_RENDERBUFFER_EXT, depth_rb);
+ glRenderbufferStorage(GL_RENDERBUFFER_EXT,
+ GL_DEPTH_COMPONENT, winWidth, winHeight);
+ glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
+ GL_DEPTH_ATTACHMENT_EXT,
+ GL_RENDERBUFFER_EXT,
+ depth_rb);
+
+ if (glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) != GL_FRAMEBUFFER_COMPLETE) {
+ printf("framebuffer not complete\n");
+ exit(1);
+ }
+
+ break;
+
+ default:
+ ret = EGL_FALSE;
+ break;
+ }
+
+ switch (surface_type) {
+ case GEARS_PIXMAP_TEXTURE:
+ case GEARS_RENDERBUFFER:
+ glGenTextures(1, &texture);
+ glBindTexture(GL_TEXTURE_2D, texture);
+ glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, eman->image);
+ break;
+ case GEARS_PBUFFER_TEXTURE:
+ glGenTextures(1, &texture);
+ glBindTexture(GL_TEXTURE_2D, texture);
+ break;
+ }
+
+ if (!ret) {
+ egl_manager_destroy(eman);
+ XCloseDisplay(x_dpy);
+ 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));
+ }
+
+ 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(eman, surface_type, winWidth, winHeight);
+
+ glDeleteLists(gear1, 1);
+ glDeleteLists(gear2, 1);
+ glDeleteLists(gear3, 1);
+
+ egl_manager_destroy(eman);
+ XCloseDisplay(x_dpy);
+
+ return 0;
+}
diff --git a/progs/egl/opengl/xeglthreads.c b/progs/egl/opengl/xeglthreads.c
new file mode 100644
index 00000000000..5787faecb90
--- /dev/null
+++ b/progs/egl/opengl/xeglthreads.c
@@ -0,0 +1,775 @@
+/*
+ * Copyright (C) 2000 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Ported to EGL by Chia-I Wu <[email protected]>
+ */
+
+
+/*
+ * This program tests EGL thread safety.
+ * Command line options:
+ * -p Open a display connection for each thread
+ * -l Enable application-side locking
+ * -n <num threads> Number of threads to create (default is 2)
+ * -display <display name> Specify X display (default is $DISPLAY)
+ * -t Use texture mapping
+ *
+ * Brian Paul 20 July 2000
+ */
+
+
+/*
+ * Notes:
+ * - Each thread gets its own EGL context.
+ *
+ * - The EGL contexts share texture objects.
+ *
+ * - When 't' is pressed to update the texture image, the window/thread which
+ * has input focus is signalled to change the texture. The other threads
+ * should see the updated texture the next time they call glBindTexture.
+ */
+
+
+#if defined(PTHREADS) /* defined by Mesa on Linux and other platforms */
+
+#include <assert.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <GL/gl.h>
+#include <EGL/egl.h>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <pthread.h>
+
+
+/*
+ * Each window/thread/context:
+ */
+struct winthread {
+ Display *Dpy;
+ int Index;
+ pthread_t Thread;
+ Window Win;
+ EGLDisplay Display;
+ EGLContext Context;
+ EGLSurface Surface;
+ float Angle;
+ int WinWidth, WinHeight;
+ GLboolean NewSize;
+ GLboolean Initialized;
+ GLboolean MakeNewTexture;
+};
+
+
+#define MAX_WINTHREADS 100
+static struct winthread WinThreads[MAX_WINTHREADS];
+static int NumWinThreads = 0;
+static volatile GLboolean ExitFlag = GL_FALSE;
+
+static GLboolean MultiDisplays = 0;
+static GLboolean Locking = 0;
+static GLboolean Texture = GL_FALSE;
+static GLuint TexObj = 12;
+static GLboolean Animate = GL_TRUE;
+
+static pthread_mutex_t Mutex;
+static pthread_cond_t CondVar;
+static pthread_mutex_t CondMutex;
+
+
+static void
+Error(const char *msg)
+{
+ fprintf(stderr, "Error: %s\n", msg);
+ exit(1);
+}
+
+
+static void
+signal_redraw(void)
+{
+ pthread_mutex_lock(&CondMutex);
+ pthread_cond_broadcast(&CondVar);
+ pthread_mutex_unlock(&CondMutex);
+}
+
+
+static void
+MakeNewTexture(struct winthread *wt)
+{
+#define TEX_SIZE 128
+ static float step = 0.0;
+ GLfloat image[TEX_SIZE][TEX_SIZE][4];
+ GLint width;
+ int i, j;
+
+ for (j = 0; j < TEX_SIZE; j++) {
+ for (i = 0; i < TEX_SIZE; i++) {
+ float dt = 5.0 * (j - 0.5 * TEX_SIZE) / TEX_SIZE;
+ float ds = 5.0 * (i - 0.5 * TEX_SIZE) / TEX_SIZE;
+ float r = dt * dt + ds * ds + step;
+ image[j][i][0] =
+ image[j][i][1] =
+ image[j][i][2] = 0.75 + 0.25 * cos(r);
+ image[j][i][3] = 1.0;
+ }
+ }
+
+ step += 0.5;
+
+ glBindTexture(GL_TEXTURE_2D, TexObj);
+
+ glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &width);
+ if (width) {
+ assert(width == TEX_SIZE);
+ /* sub-tex replace */
+ glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, TEX_SIZE, TEX_SIZE,
+ GL_RGBA, GL_FLOAT, image);
+ }
+ else {
+ /* create new */
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, TEX_SIZE, TEX_SIZE, 0,
+ GL_RGBA, GL_FLOAT, image);
+ }
+}
+
+
+
+/* draw a colored cube */
+static void
+draw_object(void)
+{
+ glPushMatrix();
+ glScalef(0.75, 0.75, 0.75);
+
+ glColor3f(1, 0, 0);
+
+ if (Texture) {
+ glBindTexture(GL_TEXTURE_2D, TexObj);
+ glEnable(GL_TEXTURE_2D);
+ }
+ else {
+ glDisable(GL_TEXTURE_2D);
+ }
+
+ glBegin(GL_QUADS);
+
+ /* -X */
+ glColor3f(0, 1, 1);
+ glTexCoord2f(0, 0); glVertex3f(-1, -1, -1);
+ glTexCoord2f(1, 0); glVertex3f(-1, 1, -1);
+ glTexCoord2f(1, 1); glVertex3f(-1, 1, 1);
+ glTexCoord2f(0, 1); glVertex3f(-1, -1, 1);
+
+ /* +X */
+ glColor3f(1, 0, 0);
+ glTexCoord2f(0, 0); glVertex3f(1, -1, -1);
+ glTexCoord2f(1, 0); glVertex3f(1, 1, -1);
+ glTexCoord2f(1, 1); glVertex3f(1, 1, 1);
+ glTexCoord2f(0, 1); glVertex3f(1, -1, 1);
+
+ /* -Y */
+ glColor3f(1, 0, 1);
+ glTexCoord2f(0, 0); glVertex3f(-1, -1, -1);
+ glTexCoord2f(1, 0); glVertex3f( 1, -1, -1);
+ glTexCoord2f(1, 1); glVertex3f( 1, -1, 1);
+ glTexCoord2f(0, 1); glVertex3f(-1, -1, 1);
+
+ /* +Y */
+ glColor3f(0, 1, 0);
+ glTexCoord2f(0, 0); glVertex3f(-1, 1, -1);
+ glTexCoord2f(1, 0); glVertex3f( 1, 1, -1);
+ glTexCoord2f(1, 1); glVertex3f( 1, 1, 1);
+ glTexCoord2f(0, 1); glVertex3f(-1, 1, 1);
+
+ /* -Z */
+ glColor3f(1, 1, 0);
+ glTexCoord2f(0, 0); glVertex3f(-1, -1, -1);
+ glTexCoord2f(1, 0); glVertex3f( 1, -1, -1);
+ glTexCoord2f(1, 1); glVertex3f( 1, 1, -1);
+ glTexCoord2f(0, 1); glVertex3f(-1, 1, -1);
+
+ /* +Y */
+ glColor3f(0, 0, 1);
+ glTexCoord2f(0, 0); glVertex3f(-1, -1, 1);
+ glTexCoord2f(1, 0); glVertex3f( 1, -1, 1);
+ glTexCoord2f(1, 1); glVertex3f( 1, 1, 1);
+ glTexCoord2f(0, 1); glVertex3f(-1, 1, 1);
+
+ glEnd();
+
+ glPopMatrix();
+}
+
+
+/* signal resize of given window */
+static void
+resize(struct winthread *wt, int w, int h)
+{
+ wt->NewSize = GL_TRUE;
+ wt->WinWidth = w;
+ wt->WinHeight = h;
+ if (!Animate)
+ signal_redraw();
+}
+
+
+/*
+ * We have an instance of this for each thread.
+ */
+static void
+draw_loop(struct winthread *wt)
+{
+ while (!ExitFlag) {
+
+ if (Locking)
+ pthread_mutex_lock(&Mutex);
+
+ if (!wt->Initialized) {
+ eglMakeCurrent(wt->Display, wt->Surface, wt->Surface, wt->Context);
+ printf("xeglthreads: %d: GL_RENDERER = %s\n", wt->Index,
+ (char *) glGetString(GL_RENDERER));
+ if (Texture /*&& wt->Index == 0*/) {
+ MakeNewTexture(wt);
+ }
+ wt->Initialized = GL_TRUE;
+ }
+
+ if (Locking)
+ pthread_mutex_unlock(&Mutex);
+
+ eglBindAPI(EGL_OPENGL_API);
+ if (eglGetCurrentContext() != wt->Context) {
+ printf("xeglthreads: current context %p != %p\n",
+ eglGetCurrentContext(), wt->Context);
+ }
+
+ glEnable(GL_DEPTH_TEST);
+
+ if (wt->NewSize) {
+ GLfloat w = (float) wt->WinWidth / (float) wt->WinHeight;
+ glViewport(0, 0, wt->WinWidth, wt->WinHeight);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustum(-w, w, -1.0, 1.0, 1.5, 10);
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0, 0, -2.5);
+ wt->NewSize = GL_FALSE;
+ }
+
+ if (wt->MakeNewTexture) {
+ MakeNewTexture(wt);
+ wt->MakeNewTexture = GL_FALSE;
+ }
+
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glPushMatrix();
+ glRotatef(wt->Angle, 0, 1, 0);
+ glRotatef(wt->Angle, 1, 0, 0);
+ glScalef(0.7, 0.7, 0.7);
+ draw_object();
+ glPopMatrix();
+
+ if (Locking)
+ pthread_mutex_lock(&Mutex);
+
+ eglSwapBuffers(wt->Display, wt->Surface);
+
+ if (Locking)
+ pthread_mutex_unlock(&Mutex);
+
+ if (Animate) {
+ usleep(5000);
+ }
+ else {
+ /* wait for signal to draw */
+ pthread_mutex_lock(&CondMutex);
+ pthread_cond_wait(&CondVar, &CondMutex);
+ pthread_mutex_unlock(&CondMutex);
+ }
+ wt->Angle += 1.0;
+ }
+ eglMakeCurrent(wt->Display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+}
+
+
+static void
+keypress(XEvent *event, struct winthread *wt)
+{
+ char buf[100];
+ KeySym keySym;
+ XComposeStatus stat;
+
+ XLookupString(&event->xkey, buf, sizeof(buf), &keySym, &stat);
+
+ switch (keySym) {
+ case XK_Escape:
+ /* tell all threads to exit */
+ if (!Animate) {
+ signal_redraw();
+ }
+ ExitFlag = GL_TRUE;
+ /*printf("exit draw_loop %d\n", wt->Index);*/
+ return;
+ case XK_t:
+ case XK_T:
+ if (Texture) {
+ wt->MakeNewTexture = GL_TRUE;
+ if (!Animate)
+ signal_redraw();
+ }
+ break;
+ case XK_a:
+ case XK_A:
+ Animate = !Animate;
+ if (Animate) /* yes, prev Animate state! */
+ signal_redraw();
+ break;
+ case XK_s:
+ case XK_S:
+ if (!Animate)
+ signal_redraw();
+ break;
+ default:
+ ; /* nop */
+ }
+}
+
+
+/*
+ * The main process thread runs this loop.
+ * Single display connection for all threads.
+ */
+static void
+event_loop(Display *dpy)
+{
+ XEvent event;
+ int i;
+
+ assert(!MultiDisplays);
+
+ while (!ExitFlag) {
+
+ if (Locking) {
+ while (1) {
+ int k;
+ pthread_mutex_lock(&Mutex);
+ k = XPending(dpy);
+ if (k) {
+ XNextEvent(dpy, &event);
+ pthread_mutex_unlock(&Mutex);
+ break;
+ }
+ pthread_mutex_unlock(&Mutex);
+ usleep(5000);
+ }
+ }
+ else {
+ XNextEvent(dpy, &event);
+ }
+
+ switch (event.type) {
+ case ConfigureNotify:
+ /* Find winthread for this event's window */
+ for (i = 0; i < NumWinThreads; i++) {
+ struct winthread *wt = &WinThreads[i];
+ if (event.xconfigure.window == wt->Win) {
+ resize(wt, event.xconfigure.width,
+ event.xconfigure.height);
+ break;
+ }
+ }
+ break;
+ case KeyPress:
+ for (i = 0; i < NumWinThreads; i++) {
+ struct winthread *wt = &WinThreads[i];
+ if (event.xkey.window == wt->Win) {
+ keypress(&event, wt);
+ break;
+ }
+ }
+ break;
+ default:
+ /*no-op*/ ;
+ }
+ }
+}
+
+
+/*
+ * Separate display connection for each thread.
+ */
+static void
+event_loop_multi(void)
+{
+ XEvent event;
+ int w = 0;
+
+ assert(MultiDisplays);
+
+ while (!ExitFlag) {
+ struct winthread *wt = &WinThreads[w];
+ if (XPending(wt->Dpy)) {
+ XNextEvent(wt->Dpy, &event);
+ switch (event.type) {
+ case ConfigureNotify:
+ resize(wt, event.xconfigure.width, event.xconfigure.height);
+ break;
+ case KeyPress:
+ keypress(&event, wt);
+ break;
+ default:
+ ; /* nop */
+ }
+ }
+ w = (w + 1) % NumWinThreads;
+ usleep(5000);
+ }
+}
+
+
+
+/*
+ * we'll call this once for each thread, before the threads are created.
+ */
+static void
+create_window(struct winthread *wt, EGLContext shareCtx)
+{
+ Window win;
+ EGLContext ctx;
+ EGLSurface surf;
+ EGLint attribs[] = { EGL_RED_SIZE, 1,
+ EGL_GREEN_SIZE, 1,
+ EGL_BLUE_SIZE, 1,
+ EGL_DEPTH_SIZE, 1,
+ EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
+ EGL_NONE };
+ EGLConfig config;
+ EGLint num_configs;
+ EGLint vid;
+ int scrnum;
+ XSetWindowAttributes attr;
+ unsigned long mask;
+ Window root;
+ XVisualInfo *visinfo, visTemplate;
+ int num_visuals;
+ int width = 160, height = 160;
+ int xpos = (wt->Index % 8) * (width + 10);
+ int ypos = (wt->Index / 8) * (width + 20);
+
+ scrnum = DefaultScreen(wt->Dpy);
+ root = RootWindow(wt->Dpy, scrnum);
+
+ if (!eglChooseConfig(wt->Display, attribs, &config, 1, &num_configs) ||
+ !num_configs) {
+ Error("Unable to choose an EGL config");
+ }
+
+ assert(config);
+ assert(num_configs > 0);
+
+ if (!eglGetConfigAttrib(wt->Display, config, EGL_NATIVE_VISUAL_ID, &vid)) {
+ Error("Unable to get visual id of EGL config\n");
+ }
+
+ visTemplate.visualid = vid;
+ visinfo = XGetVisualInfo(wt->Dpy, VisualIDMask,
+ &visTemplate, &num_visuals);
+ if (!visinfo) {
+ Error("Unable to find RGB, Z, double-buffered visual");
+ }
+
+ /* window attributes */
+ attr.background_pixel = 0;
+ attr.border_pixel = 0;
+ attr.colormap = XCreateColormap(wt->Dpy, root, visinfo->visual, AllocNone);
+ attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+ mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+ win = XCreateWindow(wt->Dpy, root, xpos, ypos, width, height,
+ 0, visinfo->depth, InputOutput,
+ visinfo->visual, mask, &attr);
+ if (!win) {
+ Error("Couldn't create window");
+ }
+
+ XFree(visinfo);
+
+ {
+ XSizeHints sizehints;
+ sizehints.x = xpos;
+ sizehints.y = ypos;
+ sizehints.width = width;
+ sizehints.height = height;
+ sizehints.flags = USSize | USPosition;
+ XSetNormalHints(wt->Dpy, win, &sizehints);
+ XSetStandardProperties(wt->Dpy, win, "xeglthreads", "xeglthreads",
+ None, (char **)NULL, 0, &sizehints);
+ }
+
+ eglBindAPI(EGL_OPENGL_API);
+
+ ctx = eglCreateContext(wt->Display, config, shareCtx, NULL);
+ if (!ctx) {
+ Error("Couldn't create EGL context");
+ }
+ surf = eglCreateWindowSurface(wt->Display, config, win, NULL);
+ if (!surf) {
+ Error("Couldn't create EGL surface");
+ }
+
+ XMapWindow(wt->Dpy, win);
+ XSync(wt->Dpy, 0);
+
+ /* save the info for this window/context */
+ wt->Win = win;
+ wt->Context = ctx;
+ wt->Surface = surf;
+ wt->Angle = 0.0;
+ wt->WinWidth = width;
+ wt->WinHeight = height;
+ wt->NewSize = GL_TRUE;
+}
+
+
+/*
+ * Called by pthread_create()
+ */
+static void *
+thread_function(void *p)
+{
+ struct winthread *wt = (struct winthread *) p;
+ draw_loop(wt);
+ return NULL;
+}
+
+
+/*
+ * called before exit to wait for all threads to finish
+ */
+static void
+clean_up(void)
+{
+ int i;
+
+ /* wait for threads to finish */
+ for (i = 0; i < NumWinThreads; i++) {
+ pthread_join(WinThreads[i].Thread, NULL);
+ }
+
+ for (i = 0; i < NumWinThreads; i++) {
+ eglDestroyContext(WinThreads[i].Display, WinThreads[i].Context);
+ XDestroyWindow(WinThreads[i].Dpy, WinThreads[i].Win);
+ }
+}
+
+
+static void
+usage(void)
+{
+ printf("xeglthreads: test of EGL/GL thread safety (any key = exit)\n");
+ printf("Usage:\n");
+ printf(" xeglthreads [options]\n");
+ printf("Options:\n");
+ printf(" -display DISPLAYNAME Specify display string\n");
+ printf(" -n NUMTHREADS Number of threads to create\n");
+ printf(" -p Use a separate display connection for each thread\n");
+ printf(" -l Use application-side locking\n");
+ printf(" -t Enable texturing\n");
+ printf("Keyboard:\n");
+ printf(" Esc Exit\n");
+ printf(" t Change texture image (requires -t option)\n");
+ printf(" a Toggle animation\n");
+ printf(" s Step rotation (when not animating)\n");
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ char *displayName = NULL;
+ int numThreads = 2;
+ Display *dpy = NULL;
+ EGLDisplay *egl_dpy = NULL;
+ int i;
+ Status threadStat;
+
+ if (argc == 1) {
+ usage();
+ }
+ else {
+ int i;
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "-display") == 0 && i + 1 < argc) {
+ displayName = argv[i + 1];
+ i++;
+ }
+ else if (strcmp(argv[i], "-p") == 0) {
+ MultiDisplays = 1;
+ }
+ else if (strcmp(argv[i], "-l") == 0) {
+ Locking = 1;
+ }
+ else if (strcmp(argv[i], "-t") == 0) {
+ Texture = 1;
+ }
+ else if (strcmp(argv[i], "-n") == 0 && i + 1 < argc) {
+ numThreads = atoi(argv[i + 1]);
+ if (numThreads < 1)
+ numThreads = 1;
+ else if (numThreads > MAX_WINTHREADS)
+ numThreads = MAX_WINTHREADS;
+ i++;
+ }
+ else {
+ usage();
+ exit(1);
+ }
+ }
+ }
+
+ if (Locking)
+ printf("xeglthreads: Using explicit locks around Xlib calls.\n");
+ else
+ printf("xeglthreads: No explict locking.\n");
+
+ if (MultiDisplays)
+ printf("xeglthreads: Per-thread display connections.\n");
+ else
+ printf("xeglthreads: Single display connection.\n");
+
+ /*
+ * VERY IMPORTANT: call XInitThreads() before any other Xlib functions.
+ */
+ if (!MultiDisplays) {
+ if (!Locking) {
+ threadStat = XInitThreads();
+ if (threadStat) {
+ printf("XInitThreads() returned %d (success)\n",
+ (int) threadStat);
+ }
+ else {
+ printf("XInitThreads() returned 0 "
+ "(failure- this program may fail)\n");
+ }
+ }
+
+ dpy = XOpenDisplay(displayName);
+ if (!dpy) {
+ fprintf(stderr, "Unable to open display %s\n",
+ XDisplayName(displayName));
+ return -1;
+ }
+ egl_dpy = eglGetDisplay(dpy);
+ if (!egl_dpy) {
+ fprintf(stderr, "Unable to get EGL display\n");
+ XCloseDisplay(dpy);
+ return -1;
+ }
+ if (!eglInitialize(egl_dpy, NULL, NULL)) {
+ fprintf(stderr, "Unable to initialize EGL display\n");
+ return -1;
+ }
+ }
+
+ pthread_mutex_init(&Mutex, NULL);
+ pthread_mutex_init(&CondMutex, NULL);
+ pthread_cond_init(&CondVar, NULL);
+
+ printf("xeglthreads: creating windows\n");
+
+ NumWinThreads = numThreads;
+
+ /* Create the EGL windows and contexts */
+ for (i = 0; i < numThreads; i++) {
+ EGLContext share;
+
+ if (MultiDisplays) {
+ WinThreads[i].Dpy = XOpenDisplay(displayName);
+ assert(WinThreads[i].Dpy);
+ WinThreads[i].Display = eglGetDisplay(WinThreads[i].Dpy);
+ assert(eglInitialize(WinThreads[i].Display, NULL, NULL));
+ }
+ else {
+ WinThreads[i].Dpy = dpy;
+ WinThreads[i].Display = egl_dpy;
+ }
+ WinThreads[i].Index = i;
+ WinThreads[i].Initialized = GL_FALSE;
+
+ share = (Texture && i > 0) ? WinThreads[0].Context : 0;
+
+ create_window(&WinThreads[i], share);
+ }
+
+ printf("xeglthreads: creating threads\n");
+
+ /* Create the threads */
+ for (i = 0; i < numThreads; i++) {
+ pthread_create(&WinThreads[i].Thread, NULL, thread_function,
+ (void*) &WinThreads[i]);
+ printf("xeglthreads: Created thread %p\n",
+ (void *) WinThreads[i].Thread);
+ }
+
+ if (MultiDisplays)
+ event_loop_multi();
+ else
+ event_loop(dpy);
+
+ clean_up();
+
+ if (MultiDisplays) {
+ for (i = 0; i < numThreads; i++) {
+ eglTerminate(WinThreads[i].Display);
+ XCloseDisplay(WinThreads[i].Dpy);
+ }
+ }
+ else {
+ eglTerminate(egl_dpy);
+ XCloseDisplay(dpy);
+ }
+
+ return 0;
+}
+
+
+#else /* PTHREADS */
+
+
+#include <stdio.h>
+
+int
+main(int argc, char *argv[])
+{
+ printf("Sorry, this program wasn't compiled with PTHREADS defined.\n");
+ return 0;
+}
+
+
+#endif /* PTHREADS */
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