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-rw-r--r--progs/es1/screen/Makefile32
-rw-r--r--progs/es1/screen/gears.c374
-rw-r--r--progs/es1/screen/tri.c129
-rw-r--r--progs/es1/screen/winsys.c272
-rw-r--r--progs/es1/screen/winsys.h36
5 files changed, 843 insertions, 0 deletions
diff --git a/progs/es1/screen/Makefile b/progs/es1/screen/Makefile
new file mode 100644
index 00000000000..4ba2f9a7dc1
--- /dev/null
+++ b/progs/es1/screen/Makefile
@@ -0,0 +1,32 @@
+# progs/es1/screen/Makefile
+
+TOP = ../../..
+include $(TOP)/configs/current
+
+ES1_CFLAGS = -I$(TOP)/include
+ES1_LIBS = -L$(TOP)/$(LIB_DIR) -lEGL -lGLESv1_CM
+
+ES1_LIB_DEPS = \
+ $(TOP)/$(LIB_DIR)/libEGL.so \
+ $(TOP)/$(LIB_DIR)/libGLESv1_CM.so
+
+WINSYS_OBJS = winsys.o
+
+PROGRAMS = \
+ gears \
+ tri
+
+.c.o:
+ $(CC) -c $(ES1_CFLAGS) $(CFLAGS) $< -o $@
+
+default: $(PROGRAMS)
+
+gears: gears.o $(WINSYS_OBJS) $(ES1_LIB_DEPS)
+ $(CC) $(CFLAGS) -o $@ [email protected] $(WINSYS_OBJS) $(ES1_LIBS)
+
+tri: tri.o $(WINSYS_OBJS) $(ES1_LIB_DEPS)
+ $(CC) $(CFLAGS) -o $@ [email protected] $(WINSYS_OBJS) $(ES1_LIBS)
+
+clean:
+ -rm -f *.o *~
+ -rm -f $(PROGRAMS)
diff --git a/progs/es1/screen/gears.c b/progs/es1/screen/gears.c
new file mode 100644
index 00000000000..c7625826b97
--- /dev/null
+++ b/progs/es1/screen/gears.c
@@ -0,0 +1,374 @@
+/*
+ * Copyright (C) 2009 Chia-I Wu <[email protected]>
+ *
+ * Based on eglgears by
+ * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <math.h>
+#include <assert.h>
+
+#include <GLES/gl.h>
+#include "winsys.h"
+
+#ifndef M_PI
+#define M_PI 3.14159265
+#endif
+
+
+struct gear {
+ GLuint vbo;
+ GLfloat *vertices;
+ GLsizei stride;
+
+ GLint num_teeth;
+};
+
+static GLfloat view_rotx = 20.0, view_roty = 30.0, view_rotz = 0.0;
+static struct gear gears[3];
+static GLfloat angle = 0.0;
+
+/*
+ * Initialize a gear wheel.
+ *
+ * Input: gear - gear to initialize
+ * 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
+init_gear(struct gear *gear, GLfloat inner_radius, GLfloat outer_radius,
+ GLfloat width, GLint teeth, GLfloat tooth_depth)
+{
+ GLfloat r0, r1, r2;
+ GLfloat a0, da;
+ GLint verts_per_tooth, total_verts, total_size;
+ GLint count, i;
+ GLfloat *verts;
+
+ r0 = inner_radius;
+ r1 = outer_radius - tooth_depth / 2.0;
+ r2 = outer_radius + tooth_depth / 2.0;
+
+ a0 = 2.0 * M_PI / teeth;
+ da = a0 / 4.0;
+
+ gear->vbo = 0;
+ gear->vertices = NULL;
+ gear->stride = sizeof(GLfloat) * 6; /* XYZ + normal */
+ gear->num_teeth = teeth;
+
+ verts_per_tooth = 10 + 4;
+ total_verts = teeth * verts_per_tooth;
+ total_size = total_verts * gear->stride;
+
+ verts = malloc(total_size);
+ if (!verts) {
+ printf("failed to allocate vertices\n");
+ return;
+ }
+
+#define GEAR_VERT(r, n, sign) \
+ do { \
+ verts[count * 6 + 0] = (r) * vx[n]; \
+ verts[count * 6 + 1] = (r) * vy[n]; \
+ verts[count * 6 + 2] = (sign) * width * 0.5; \
+ verts[count * 6 + 3] = normal[0]; \
+ verts[count * 6 + 4] = normal[1]; \
+ verts[count * 6 + 5] = normal[2]; \
+ count++; \
+ } while (0)
+
+ count = 0;
+ for (i = 0; i < teeth; i++) {
+ GLfloat normal[3];
+ GLfloat vx[5], vy[5];
+ GLfloat u, v;
+
+ normal[0] = 0.0;
+ normal[1] = 0.0;
+ normal[2] = 0.0;
+
+ vx[0] = cos(i * a0 + 0 * da);
+ vy[0] = sin(i * a0 + 0 * da);
+ vx[1] = cos(i * a0 + 1 * da);
+ vy[1] = sin(i * a0 + 1 * da);
+ vx[2] = cos(i * a0 + 2 * da);
+ vy[2] = sin(i * a0 + 2 * da);
+ vx[3] = cos(i * a0 + 3 * da);
+ vy[3] = sin(i * a0 + 3 * da);
+ vx[4] = cos(i * a0 + 4 * da);
+ vy[4] = sin(i * a0 + 4 * da);
+
+ /* outward faces of a tooth, 10 verts */
+ normal[0] = vx[0];
+ normal[1] = vy[0];
+ GEAR_VERT(r1, 0, 1);
+ GEAR_VERT(r1, 0, -1);
+
+ u = r2 * vx[1] - r1 * vx[0];
+ v = r2 * vy[1] - r1 * vy[0];
+ normal[0] = v;
+ normal[1] = -u;
+ GEAR_VERT(r2, 1, 1);
+ GEAR_VERT(r2, 1, -1);
+
+ normal[0] = vx[0];
+ normal[1] = vy[0];
+ GEAR_VERT(r2, 2, 1);
+ GEAR_VERT(r2, 2, -1);
+
+ u = r1 * vx[3] - r2 * vx[2];
+ v = r1 * vy[3] - r2 * vy[2];
+ normal[0] = v;
+ normal[1] = -u;
+ GEAR_VERT(r1, 3, 1);
+ GEAR_VERT(r1, 3, -1);
+
+ normal[0] = vx[0];
+ normal[1] = vy[0];
+ GEAR_VERT(r1, 4, 1);
+ GEAR_VERT(r1, 4, -1);
+
+ /* inside radius cylinder, 4 verts */
+ normal[0] = -vx[4];
+ normal[1] = -vy[4];
+ GEAR_VERT(r0, 4, 1);
+ GEAR_VERT(r0, 4, -1);
+
+ normal[0] = -vx[0];
+ normal[1] = -vy[0];
+ GEAR_VERT(r0, 0, 1);
+ GEAR_VERT(r0, 0, -1);
+
+ assert(count % verts_per_tooth == 0);
+ }
+ assert(count == total_verts);
+#undef GEAR_VERT
+
+ gear->vertices = verts;
+
+ /* setup VBO */
+ glGenBuffers(1, &gear->vbo);
+ if (gear->vbo) {
+ glBindBuffer(GL_ARRAY_BUFFER, gear->vbo);
+ glBufferData(GL_ARRAY_BUFFER, total_size, verts, GL_STATIC_DRAW);
+ }
+}
+
+
+static void
+draw_gear(const struct gear *gear)
+{
+ GLint i;
+
+ if (!gear->vbo && !gear->vertices) {
+ printf("nothing to be drawn\n");
+ return;
+ }
+
+ if (gear->vbo) {
+ glBindBuffer(GL_ARRAY_BUFFER, gear->vbo);
+ glVertexPointer(3, GL_FLOAT, gear->stride, (const GLvoid *) 0);
+ glNormalPointer(GL_FLOAT, gear->stride, (const GLvoid *) (sizeof(GLfloat) * 3));
+ } else {
+ glBindBuffer(GL_ARRAY_BUFFER, 0);
+ glVertexPointer(3, GL_FLOAT, gear->stride, gear->vertices);
+ glNormalPointer(GL_FLOAT, gear->stride, gear->vertices + 3);
+ }
+
+ glEnableClientState(GL_VERTEX_ARRAY);
+
+ for (i = 0; i < gear->num_teeth; i++) {
+ const GLint base = (10 + 4) * i;
+ GLushort indices[7];
+
+ glShadeModel(GL_FLAT);
+
+ /* front face */
+ indices[0] = base + 12;
+ indices[1] = base + 0;
+ indices[2] = base + 2;
+ indices[3] = base + 4;
+ indices[4] = base + 6;
+ indices[5] = base + 8;
+ indices[6] = base + 10;
+
+ glNormal3f(0.0, 0.0, 1.0);
+ glDrawElements(GL_TRIANGLE_FAN, 7, GL_UNSIGNED_SHORT, indices);
+
+ /* back face */
+ indices[0] = base + 13;
+ indices[1] = base + 11;
+ indices[2] = base + 9;
+ indices[3] = base + 7;
+ indices[4] = base + 5;
+ indices[5] = base + 3;
+ indices[6] = base + 1;
+
+ glNormal3f(0.0, 0.0, -1.0);
+ glDrawElements(GL_TRIANGLE_FAN, 7, GL_UNSIGNED_SHORT, indices);
+
+ glEnableClientState(GL_NORMAL_ARRAY);
+
+ /* outward face of a tooth */
+ glDrawArrays(GL_TRIANGLE_STRIP, base, 10);
+
+ /* inside radius cylinder */
+ glShadeModel(GL_SMOOTH);
+ glDrawArrays(GL_TRIANGLE_STRIP, base + 10, 4);
+
+ glDisableClientState(GL_NORMAL_ARRAY);
+ }
+
+ glDisableClientState(GL_VERTEX_ARRAY);
+}
+
+
+static void
+gears_draw(void *data)
+{
+ static const GLfloat red[4] = { 0.8, 0.1, 0.0, 1.0 };
+ static const GLfloat green[4] = { 0.0, 0.8, 0.2, 1.0 };
+ static const GLfloat blue[4] = { 0.2, 0.2, 1.0, 1.0 };
+
+ 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);
+
+ glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, red);
+ draw_gear(&gears[0]);
+
+ glPopMatrix();
+
+ glPushMatrix();
+ glTranslatef(3.1, -2.0, 0.0);
+ glRotatef(-2.0 * angle - 9.0, 0.0, 0.0, 1.0);
+
+ glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, green);
+ draw_gear(&gears[1]);
+
+ glPopMatrix();
+
+ glPushMatrix();
+ glTranslatef(-3.1, 4.2, 0.0);
+ glRotatef(-2.0 * angle - 25.0, 0.0, 0.0, 1.0);
+
+ glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, blue);
+ draw_gear(&gears[2]);
+
+ glPopMatrix();
+
+ glPopMatrix();
+
+ /* advance rotation for next frame */
+ angle += 0.5; /* 0.5 degree per frame */
+ if (angle > 3600.0)
+ angle -= 3600.0;
+}
+
+
+static void gears_fini(void)
+{
+ GLint i;
+ for (i = 0; i < 3; i++) {
+ struct gear *gear = &gears[i];
+ if (gear->vbo) {
+ glDeleteBuffers(1, &gear->vbo);
+ gear->vbo = 0;
+ }
+ if (gear->vertices) {
+ free(gear->vertices);
+ gear->vertices = NULL;
+ }
+ }
+}
+
+
+static void gears_init(void)
+{
+ static const GLfloat pos[4] = { 5.0, 5.0, 10.0, 0.0 };
+
+ glLightfv(GL_LIGHT0, GL_POSITION, pos);
+ glEnable(GL_CULL_FACE);
+ glEnable(GL_LIGHTING);
+ glEnable(GL_LIGHT0);
+ glEnable(GL_DEPTH_TEST);
+ glEnable(GL_NORMALIZE);
+
+ init_gear(&gears[0], 1.0, 4.0, 1.0, 20, 0.7);
+ init_gear(&gears[1], 0.5, 2.0, 2.0, 10, 0.7);
+ init_gear(&gears[2], 1.3, 2.0, 0.5, 10, 0.7);
+}
+
+
+/* new window size or exposure */
+static void
+gears_reshape(int width, int height)
+{
+ GLfloat h = (GLfloat) height / (GLfloat) width;
+
+ glViewport(0, 0, (GLint) width, (GLint) height);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustumf(-1.0, 1.0, -h, h, 5.0, 60.0);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -40.0);
+}
+
+
+static void gears_run(void)
+{
+ winsysRun(5.0, gears_draw, NULL);
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ EGLint width, height;
+
+ if (!winsysInitScreen())
+ exit(1);
+ winsysQueryScreenSize(&width, &height);
+
+ gears_init();
+ gears_reshape(width, height);
+ gears_run();
+ gears_fini();
+
+ winsysFiniScreen();
+
+ return 0;
+}
diff --git a/progs/es1/screen/tri.c b/progs/es1/screen/tri.c
new file mode 100644
index 00000000000..bab9499944b
--- /dev/null
+++ b/progs/es1/screen/tri.c
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2009 Chia-I Wu <[email protected]>
+ *
+ * Based on egltri by
+ * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
+ * Copyright (C) 2008 Brian Paul All Rights Reserved.
+ * Copyright (C) 2008 Jakob Bornecrantz All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <GLES/gl.h>
+#include "winsys.h"
+
+static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
+
+static void tri_init()
+{
+ glClearColor(0.4, 0.4, 0.4, 0.0);
+}
+
+static void tri_reshape(int width, int height)
+{
+ GLfloat ar = (GLfloat) width / (GLfloat) height;
+
+ glViewport(0, 0, (GLint) width, (GLint) height);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -10.0);
+}
+
+static void tri_draw(void *data)
+{
+ static const GLfloat verts[3][2] = {
+ { -1, -1 },
+ { 1, -1 },
+ { 0, 1 }
+ };
+ static const GLfloat colors[3][4] = {
+ { 1, 0, 0, 1 },
+ { 0, 1, 0, 1 },
+ { 0, 0, 1, 1 }
+ };
+
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glPushMatrix();
+ glRotatef(view_rotx, 1, 0, 0);
+ glRotatef(view_roty, 0, 1, 0);
+ glRotatef(view_rotz, 0, 0, 1);
+
+ {
+ glVertexPointer(2, GL_FLOAT, 0, verts);
+ glColorPointer(4, GL_FLOAT, 0, colors);
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_COLOR_ARRAY);
+
+ glDrawArrays(GL_TRIANGLES, 0, 3);
+
+ glDisableClientState(GL_VERTEX_ARRAY);
+ glDisableClientState(GL_COLOR_ARRAY);
+ }
+
+ glPopMatrix();
+}
+
+static void tri_run(void)
+{
+ winsysRun(3.0, tri_draw, NULL);
+}
+
+int main(int argc, char *argv[])
+{
+ EGLint width, height;
+ GLboolean printInfo = GL_FALSE;
+ int i;
+
+ /* 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]);
+ }
+ }
+
+ if (!winsysInitScreen())
+ exit(1);
+ winsysQueryScreenSize(&width, &height);
+
+ 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));
+ }
+
+ tri_init();
+ tri_reshape(width, height);
+ tri_run();
+
+ winsysFiniScreen();
+
+ return 0;
+}
diff --git a/progs/es1/screen/winsys.c b/progs/es1/screen/winsys.c
new file mode 100644
index 00000000000..84d00471eba
--- /dev/null
+++ b/progs/es1/screen/winsys.c
@@ -0,0 +1,272 @@
+/*
+ * Copyright (C) 2009 Chia-I Wu <[email protected]>
+ *
+ * Based on eglgears by
+ * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <sys/time.h>
+
+#define EGL_EGLEXT_PROTOTYPES
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+
+#include "winsys.h"
+
+#define MAX_MODES 100
+
+static struct {
+ EGLBoolean verbose;
+
+ EGLDisplay dpy;
+ EGLConfig conf;
+
+ EGLScreenMESA screen;
+ EGLModeMESA mode;
+ EGLint width, height;
+
+ EGLContext ctx;
+ EGLSurface surf;
+} screen;
+
+
+static EGLBoolean
+init_screen(void)
+{
+ EGLModeMESA modes[MAX_MODES];
+ EGLint num_screens, num_modes;
+ EGLint width, height, best_mode;
+ EGLint i;
+
+ if (!eglGetScreensMESA(screen.dpy, &screen.screen, 1, &num_screens) ||
+ !num_screens) {
+ printf("eglGetScreensMESA failed\n");
+ return EGL_FALSE;
+ }
+
+ if (!eglGetModesMESA(screen.dpy, screen.screen, modes, MAX_MODES,
+ &num_modes) ||
+ !num_modes) {
+ printf("eglGetModesMESA failed!\n");
+ return EGL_FALSE;
+ }
+
+ printf("Found %d modes:\n", num_modes);
+
+ best_mode = 0;
+ width = 0;
+ height = 0;
+ for (i = 0; i < num_modes; i++) {
+ EGLint w, h;
+ eglGetModeAttribMESA(screen.dpy, modes[i], EGL_WIDTH, &w);
+ eglGetModeAttribMESA(screen.dpy, modes[i], EGL_HEIGHT, &h);
+ printf("%3d: %d x %d\n", i, w, h);
+ if (w > width && h > height) {
+ width = w;
+ height = h;
+ best_mode = i;
+ }
+ }
+
+ screen.mode = modes[best_mode];
+ screen.width = width;
+ screen.height = height;
+
+ return EGL_TRUE;
+}
+
+
+static EGLBoolean
+init_display(void)
+{
+ EGLint maj, min;
+ const char *exts;
+ const EGLint attribs[] = {
+ EGL_SURFACE_TYPE, 0x0, /* should be EGL_SCREEN_BIT_MESA */
+ EGL_RENDERABLE_TYPE, 0x0, /* should be EGL_OPENGL_ES_BIT */
+ EGL_NONE
+ };
+ EGLint num_configs;
+
+ screen.dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+ if (!screen.dpy) {
+ printf("eglGetDisplay failed\n");
+ return EGL_FALSE;
+ }
+
+ if (!eglInitialize(screen.dpy, &maj, &min)) {
+ printf("eglInitialize failed\n");
+ return EGL_FALSE;
+ }
+
+ printf("EGL_VERSION = %s\n", eglQueryString(screen.dpy, EGL_VERSION));
+ printf("EGL_VENDOR = %s\n", eglQueryString(screen.dpy, EGL_VENDOR));
+
+ exts = eglQueryString(screen.dpy, EGL_EXTENSIONS);
+ assert(exts);
+
+ if (!strstr(exts, "EGL_MESA_screen_surface")) {
+ printf("EGL_MESA_screen_surface is not supported\n");
+ return EGL_FALSE;
+ }
+
+ if (!eglChooseConfig(screen.dpy, attribs, &screen.conf, 1,
+ &num_configs) ||
+ !num_configs) {
+ printf("eglChooseConfig failed\n");
+ return EGL_FALSE;
+ }
+
+ return EGL_TRUE;
+}
+
+
+EGLBoolean
+winsysInitScreen(void)
+{
+ EGLint surf_attribs[20];
+ EGLint i;
+ EGLBoolean ok;
+
+ if (!init_display())
+ goto fail;
+ if (!init_screen())
+ goto fail;
+
+ /* create context */
+ screen.ctx = eglCreateContext(screen.dpy, screen.conf,
+ EGL_NO_CONTEXT, NULL);
+ if (screen.ctx == EGL_NO_CONTEXT) {
+ printf("eglCreateContext failed\n");
+ goto fail;
+ }
+
+ i = 0;
+ surf_attribs[i++] = EGL_WIDTH;
+ surf_attribs[i++] = screen.width;
+ surf_attribs[i++] = EGL_HEIGHT;
+ surf_attribs[i++] = screen.height;
+ surf_attribs[i++] = EGL_NONE;
+
+ /* create surface */
+ printf("Using screen size: %d x %d\n", screen.width, screen.height);
+ screen.surf = eglCreateScreenSurfaceMESA(screen.dpy, screen.conf,
+ surf_attribs);
+ if (screen.surf == EGL_NO_SURFACE) {
+ printf("eglCreateScreenSurfaceMESA failed\n");
+ goto fail;
+ }
+
+ ok = eglMakeCurrent(screen.dpy, screen.surf, screen.surf, screen.ctx);
+ if (!ok) {
+ printf("eglMakeCurrent failed\n");
+ goto fail;
+ }
+
+ ok = eglShowScreenSurfaceMESA(screen.dpy, screen.screen,
+ screen.surf, screen.mode);
+ if (!ok) {
+ printf("eglShowScreenSurfaceMESA failed\n");
+ goto fail;
+ }
+
+ return EGL_TRUE;
+
+fail:
+ winsysFiniScreen();
+ return EGL_FALSE;
+}
+
+
+EGLBoolean
+winsysQueryScreenSize(EGLint *width, EGLint *height)
+{
+ if (!screen.dpy)
+ return EGL_FALSE;
+
+ if (width)
+ *width = screen.width;
+ if (height)
+ *height = screen.height;
+
+ return EGL_TRUE;
+}
+
+
+void
+winsysFiniScreen(void)
+{
+ if (screen.dpy) {
+ eglMakeCurrent(screen.dpy, EGL_NO_SURFACE, EGL_NO_SURFACE,
+ EGL_NO_CONTEXT);
+ if (screen.surf != EGL_NO_SURFACE)
+ eglDestroySurface(screen.dpy, screen.surf);
+ if (screen.ctx != EGL_NO_CONTEXT)
+ eglDestroyContext(screen.dpy, screen.ctx);
+ eglTerminate(screen.dpy);
+
+ memset(&screen, 0, sizeof(screen));
+ }
+}
+
+
+void
+winsysSwapBuffers(void)
+{
+ eglSwapBuffers(screen.dpy, screen.surf);
+}
+
+
+/* return current time (in seconds) */
+double
+winsysNow(void)
+{
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+ return (double) tv.tv_sec + tv.tv_usec / 1000000.0;
+}
+
+
+void
+winsysRun(double seconds, void (*draw_frame)(void *data), void *data)
+{
+ double begin, end, last_frame, duration;
+ EGLint num_frames = 0;
+
+ begin = winsysNow();
+ end = begin + seconds;
+
+ last_frame = begin;
+ while (last_frame < end) {
+ draw_frame(data);
+ winsysSwapBuffers();
+ last_frame = winsysNow();
+ num_frames++;
+ }
+
+ duration = last_frame - begin;
+ printf("%d frames in %3.1f seconds = %6.3f FPS\n",
+ num_frames, duration, (double) num_frames / duration);
+}
diff --git a/progs/es1/screen/winsys.h b/progs/es1/screen/winsys.h
new file mode 100644
index 00000000000..679c7e0bd6d
--- /dev/null
+++ b/progs/es1/screen/winsys.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2009 Chia-I Wu <[email protected]>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _WINSYS_H_
+#define _WINSYS_H_
+
+#include <EGL/egl.h>
+
+EGLBoolean winsysInitScreen(void);
+EGLBoolean winsysQueryScreenSize(EGLint *width, EGLint *height);
+void winsysFiniScreen(void);
+
+void winsysSwapBuffers(void);
+double winsysNow(void);
+
+void winsysRun(double seconds, void (*draw_frame)(void *data), void *data);
+
+#endif /* _WINSYS_H_ */
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