/***********************************************************
* Name: init_ogl
*
* Arguments:
* APP_STATE_T *state - holds OGLES model info
*
* Description: Sets the display, OpenGL|ES context and screen stuff
*
* Returns: void
*
***********************************************************/
static void
init_ogl (APP_STATE_T * state)
{
int32_t success = 0;
EGLBoolean result;
EGLint num_config;
EGLNativeWindowType window_handle = (EGLNativeWindowType) 0;
#if defined (USE_OMX_TARGET_RPI)
static EGL_DISPMANX_WINDOW_T nativewindow;
DISPMANX_UPDATE_HANDLE_T dispman_update;
VC_RECT_T dst_rect;
VC_RECT_T src_rect;
VC_DISPMANX_ALPHA_T alpha = { DISPMANX_FLAGS_ALPHA_FIXED_ALL_PIXELS, 255, 0 };
#endif
static const EGLint attribute_list[] = {
EGL_DEPTH_SIZE, 16,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_NONE
};
static const EGLint context_attributes[] = {
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
EGLConfig config;
/* get an EGL display connection */
state->display = eglGetDisplay (EGL_DEFAULT_DISPLAY);
assert (state->display != EGL_NO_DISPLAY);
/* initialize the EGL display connection */
result = eglInitialize (state->display, NULL, NULL);
assert (EGL_FALSE != result);
#if defined (USE_OMX_TARGET_RPI)
/* get an appropriate EGL frame buffer configuration
* this uses a BRCM extension that gets the closest match, rather
* than standard which returns anything that matches. */
result =
eglSaneChooseConfigBRCM (state->display, attribute_list, &config, 1,
&num_config);
assert (EGL_FALSE != result);
#else
result =
eglChooseConfig (state->display, attribute_list, &config, 1, &num_config);
#endif
/* create an EGL rendering context */
state->context =
eglCreateContext (state->display, config, EGL_NO_CONTEXT,
context_attributes);
assert (state->context != EGL_NO_CONTEXT);
#if defined (USE_OMX_TARGET_RPI)
/* create an EGL window surface */
success = graphics_get_display_size (0 /* LCD */ , &state->screen_width,
&state->screen_height);
assert (success >= 0);
dst_rect.x = 0;
dst_rect.y = 0;
dst_rect.width = state->screen_width;
dst_rect.height = state->screen_height;
src_rect.x = 0;
src_rect.y = 0;
src_rect.width = state->screen_width << 16;
src_rect.height = state->screen_height << 16;
state->dispman_display = vc_dispmanx_display_open (0 /* LCD */ );
dispman_update = vc_dispmanx_update_start (0);
state->dispman_element =
vc_dispmanx_element_add (dispman_update, state->dispman_display,
0 /*layer */ , &dst_rect, 0 /*src */ ,
&src_rect, DISPMANX_PROTECTION_NONE, &alpha, 0 /*clamp */ ,
0 /*transform */ );
nativewindow.element = state->dispman_element;
nativewindow.width = state->screen_width;
nativewindow.height = state->screen_height;
vc_dispmanx_update_submit_sync (dispman_update);
window_handle = &nativewindow;
#endif
state->surface =
eglCreateWindowSurface (state->display, config, window_handle, NULL);
assert (state->surface != EGL_NO_SURFACE);
/* connect the context to the surface */
result =
eglMakeCurrent (state->display, state->surface, state->surface,
state->context);
assert (EGL_FALSE != result);
}
/***********************************************************
* Name: init_ogl
*
* Arguments:
* APP_STATE_T *state - holds OGLES model info
*
* Description: Sets the display, OpenGL|ES context and screen stuff
*
* Returns: void
*
***********************************************************/
static void
init_ogl (APP_STATE_T * state)
{
int32_t success = 0;
EGLBoolean result;
EGLint num_config;
static EGL_DISPMANX_WINDOW_T nativewindow;
DISPMANX_UPDATE_HANDLE_T dispman_update;
VC_RECT_T dst_rect;
VC_RECT_T src_rect;
static const EGLint attribute_list[] = {
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_ALPHA_SIZE, 8,
EGL_DEPTH_SIZE, 16,
//EGL_SAMPLES, 4,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_NONE
};
EGLConfig config;
/* get an EGL display connection */
state->display = eglGetDisplay (EGL_DEFAULT_DISPLAY);
assert (state->display != EGL_NO_DISPLAY);
/* initialize the EGL display connection */
result = eglInitialize (state->display, NULL, NULL);
assert (EGL_FALSE != result);
/* get an appropriate EGL frame buffer configuration
* this uses a BRCM extension that gets the closest match, rather
* than standard which returns anything that matches. */
result =
eglSaneChooseConfigBRCM (state->display, attribute_list, &config, 1,
&num_config);
assert (EGL_FALSE != result);
/* create an EGL rendering context */
state->context =
eglCreateContext (state->display, config, EGL_NO_CONTEXT, NULL);
assert (state->context != EGL_NO_CONTEXT);
/* create an EGL window surface */
success = graphics_get_display_size (0 /* LCD */ , &state->screen_width,
&state->screen_height);
assert (success >= 0);
dst_rect.x = 0;
dst_rect.y = 0;
dst_rect.width = state->screen_width;
dst_rect.height = state->screen_height;
src_rect.x = 0;
src_rect.y = 0;
src_rect.width = state->screen_width << 16;
src_rect.height = state->screen_height << 16;
state->dispman_display = vc_dispmanx_display_open (0 /* LCD */ );
dispman_update = vc_dispmanx_update_start (0);
state->dispman_element =
vc_dispmanx_element_add (dispman_update, state->dispman_display,
0 /*layer */ , &dst_rect, 0 /*src */ ,
&src_rect, DISPMANX_PROTECTION_NONE, 0 /*alpha */ , 0 /*clamp */ ,
0 /*transform */ );
nativewindow.element = state->dispman_element;
nativewindow.width = state->screen_width;
nativewindow.height = state->screen_height;
vc_dispmanx_update_submit_sync (dispman_update);
state->surface =
eglCreateWindowSurface (state->display, config, &nativewindow, NULL);
assert (state->surface != EGL_NO_SURFACE);
/* connect the context to the surface */
result =
eglMakeCurrent (state->display, state->surface, state->surface,
state->context);
assert (EGL_FALSE != result);
/* Set background color and clear buffers */
glClearColor (0.15f, 0.25f, 0.35f, 1.0f);
/* Enable back face culling. */
glEnable (GL_CULL_FACE);
glMatrixMode (GL_MODELVIEW);
}
/***********************************************************
* Name: init_ogl
*
* Arguments:
* CUBE_STATE_T *state - holds OGLES model info
*
* Description: Sets the display, OpenGL|ES context and screen stuff
*
* Returns: void
*
***********************************************************/
static void init_ogl(CUBE_STATE_T *state)
{
int32_t success = 0;
EGLBoolean result;
EGLint num_config;
static EGL_DISPMANX_WINDOW_T nativewindow;
DISPMANX_ELEMENT_HANDLE_T dispman_element;
DISPMANX_DISPLAY_HANDLE_T dispman_display;
DISPMANX_UPDATE_HANDLE_T dispman_update;
VC_RECT_T dst_rect;
VC_RECT_T src_rect;
static const EGLint attribute_list[] =
{
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_ALPHA_SIZE, 8,
EGL_DEPTH_SIZE, 16,
EGL_SAMPLES, 4,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_NONE
};
EGLConfig config;
// get an EGL display connection
state->display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
assert(state->display!=EGL_NO_DISPLAY);
// initialize the EGL display connection
result = eglInitialize(state->display, NULL, NULL);
assert(EGL_FALSE != result);
// get an appropriate EGL frame buffer configuration
// this uses a BRCM extension that gets the closest match, rather than standard which returns anything that matches
result = eglSaneChooseConfigBRCM(state->display, attribute_list, &config, 1, &num_config);
assert(EGL_FALSE != result);
// create an EGL rendering context
state->context = eglCreateContext(state->display, config, EGL_NO_CONTEXT, NULL);
assert(state->context!=EGL_NO_CONTEXT);
// create an EGL window surface
success = graphics_get_display_size(0 /* LCD */, &state->screen_width, &state->screen_height);
assert( success >= 0 );
dst_rect.x = 0;
dst_rect.y = 0;
dst_rect.width = state->screen_width;
dst_rect.height = state->screen_height;
src_rect.x = 0;
src_rect.y = 0;
src_rect.width = state->screen_width << 16;
src_rect.height = state->screen_height << 16;
dispman_display = vc_dispmanx_display_open( 0 /* LCD */);
dispman_update = vc_dispmanx_update_start( 0 );
dispman_element = vc_dispmanx_element_add ( dispman_update, dispman_display,
0/*layer*/, &dst_rect, 0/*src*/,
&src_rect, DISPMANX_PROTECTION_NONE, 0 /*alpha*/, 0/*clamp*/, 0/*transform*/);
nativewindow.element = dispman_element;
nativewindow.width = state->screen_width;
nativewindow.height = state->screen_height;
vc_dispmanx_update_submit_sync( dispman_update );
state->surface = eglCreateWindowSurface( state->display, config, &nativewindow, NULL );
assert(state->surface != EGL_NO_SURFACE);
// connect the context to the surface
result = eglMakeCurrent(state->display, state->surface, state->surface, state->context);
assert(EGL_FALSE != result);
// Set background color and clear buffers
glClearColor((0.3922f+7*0.5f)/8, (0.1176f+7*0.5f)/8, (0.5882f+7*0.5f)/8, 1.0f);
// Enable back face culling.
glEnable(GL_CULL_FACE);
glEnable(GL_DEPTH_TEST);
glClearDepthf(1.0);
glDepthFunc(GL_LEQUAL);
float noAmbient[] = {1.0f, 1.0f, 1.0f, 1.0f};
glLightfv(GL_LIGHT0, GL_AMBIENT, noAmbient);
glEnable(GL_LIGHT0);
glEnable(GL_LIGHTING);
}
