bool applyPixelFormat(JNIEnv *env, HDC hdc, int iPixelFormat) {
PIXELFORMATDESCRIPTOR desc;
if (DescribePixelFormat(hdc, iPixelFormat, sizeof(PIXELFORMATDESCRIPTOR), &desc) == 0) {
throwFormattedException(env, "DescribePixelFormat failed (%d)", GetLastError());
return false;
}
// make that the pixel format of the device context
if (SetPixelFormat(hdc, iPixelFormat, &desc) == FALSE) {
throwFormattedException(env, "SetPixelFormat failed (%d)", GetLastError());
return false;
}
return true;
}
bool extgl_Open(JNIEnv *env) {
if (lib_gl_handle != NULL)
return true;
/*
* Actually we don't need the RTLD_GLOBAL flag, since the symbols
* we load should be private to us. However, according to the
* documentation at
*
* http://dri.sourceforge.net/doc/DRIuserguide.html
*
* DRI drivers need this flag to work properly
*/
lib_gl_handle = dlopen("libGL.so.1", RTLD_LAZY | RTLD_GLOBAL);
if (lib_gl_handle == NULL) {
throwFormattedException(env, "Error loading libGL.so.1: %s", dlerror());
return false;
}
lwjgl_glXGetProcAddressARB = (glXGetProcAddressARBPROC)dlsym(lib_gl_handle, "glXGetProcAddressARB");
if (lwjgl_glXGetProcAddressARB == NULL) {
extgl_Close();
throwException(env, "Could not get address of glXGetProcAddressARB");
return false;
}
/* Unlike Windows, GLX function addresses are context-independent
* so we only have to initialize the addresses once at load
*/
extgl_InitGLX12();
extgl_InitGLX13();
extgl_InitGLXSGISwapControl();
extgl_InitGLXARBCreateContext();
extgl_InitGLXNVPresentVideo();
extgl_InitGLXNVVideoCapture();
return true;
}
jobject getCurrentDisplayMode(JNIEnv * env) {
DEVMODE devmode;
if (!EnumDisplaySettings(NULL, ENUM_CURRENT_SETTINGS, &devmode)) {
throwFormattedException(env, "Couldn't get current display settings (%ld)", GetLastError());
return NULL;
}
return createDisplayMode(env, &devmode);
}
bool extgl_Open(JNIEnv *env) {
if ( lib_gl_handle != NULL )
return true;
lib_gl_handle = dlopen("libGLESv2.so", RTLD_LAZY | RTLD_GLOBAL);
if (lib_gl_handle == NULL) {
throwFormattedException(env, "Error loading libGLESv2.so: %s", dlerror());
return false;
}
return true;
}
void extal_LoadLibrary(JNIEnv *env, jstring path) {
char *path_str = GetStringNativeChars(env, path);
printfDebugJava(env, "Testing '%s'", path_str);
handleOAL = LoadLibrary(path_str);
if (handleOAL != NULL) {
printfDebugJava(env, "Found OpenAL at '%s'", path_str);
} else {
throwFormattedException(env, "Could not load OpenAL library (%d)", GetLastError());
}
free(path_str);
}
JNIEXPORT jlong JNICALL Java_org_lwjgl_opengl_LinuxMouse_nQueryPointer(JNIEnv *env, jclass unused, jlong display_ptr, jlong window_ptr, jobject result_buffer) {
Display *disp = (Display *)(intptr_t)display_ptr;
Window win = (Window)window_ptr;
Window root_return, child_return;
int root_x, root_y, win_x, win_y;
unsigned int mask_return;
jint *result = (jint *)(*env)->GetDirectBufferAddress(env, result_buffer);
int result_size = (*env)->GetDirectBufferCapacity(env, result_buffer);
if (result_size < 4) {
throwFormattedException(env, "Not enough space in result buffer (%d)", result_size);
return (intptr_t)NULL;
}
XQueryPointer(disp, win, &root_return, &child_return, &root_x, &root_y, &win_x, &win_y, &mask_return);
result[0] = root_x;
result[1] = root_y;
result[2] = win_x;
result[3] = win_y;
return root_return;
}
void switchDisplayMode(JNIEnv * env, jobject mode) {
DEVMODE devmode;
jclass cls_displayMode = (*env)->GetObjectClass(env, mode);
jfieldID fid_width = (*env)->GetFieldID(env, cls_displayMode, "width", "I");
jfieldID fid_height = (*env)->GetFieldID(env, cls_displayMode, "height", "I");
jfieldID fid_bpp = (*env)->GetFieldID(env, cls_displayMode, "bpp", "I");
jfieldID fid_freq = (*env)->GetFieldID(env, cls_displayMode, "freq", "I");
int width = (*env)->GetIntField(env, mode, fid_width);
int height = (*env)->GetIntField(env, mode, fid_height);
int bpp = (*env)->GetIntField(env, mode, fid_bpp);
int freq = (*env)->GetIntField(env, mode, fid_freq);
LONG cdsret;
ZeroMemory(&devmode, sizeof(DEVMODE));
devmode.dmSize = sizeof(DEVMODE);
devmode.dmBitsPerPel = bpp;
devmode.dmPelsWidth = width;
devmode.dmPelsHeight = height;
devmode.dmDisplayFrequency = freq;
devmode.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
if (freq != 0)
devmode.dmFields |= DM_DISPLAYFREQUENCY;
cdsret = ChangeDisplaySettings(&devmode, CDS_FULLSCREEN);
if (cdsret != DISP_CHANGE_SUCCESSFUL) {
/* What's the proper way to do this multiply with 2 thing, if at all necessary? */
/* // Failed: so let's check to see if it's a wierd dual screen display
printfDebugJava(env, "Failed to set display mode (%ld) ... assuming dual monitors", cdsret);
devmode.dmPelsWidth = width * 2;
cdsret = ChangeDisplaySettings(&devmode, CDS_FULLSCREEN);
if (cdsret != DISP_CHANGE_SUCCESSFUL) {
printfDebugJava(env, "Failed to set display mode using dual monitors (%ld)", cdsret);*/
throwFormattedException(env, "Failed to set display mode (%ld).", cdsret);
return;
// }
}
}
static int findPixelFormatARBFromBPP(JNIEnv *env, HDC hdc, WGLExtensions *extensions, jobject pixel_format, jobject pixelFormatCaps, int bpp, bool window, bool pbuffer, bool double_buffer) {
jclass cls_pixel_format = (*env)->GetObjectClass(env, pixel_format);
int alpha = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "alpha", "I"));
int depth = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "depth", "I"));
int stencil = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "stencil", "I"));
int samples = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "samples", "I"));
int colorSamples = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "colorSamples", "I"));
int num_aux_buffers = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "num_aux_buffers", "I"));
int accum_bpp = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "accum_bpp", "I"));
int accum_alpha = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "accum_alpha", "I"));
jboolean stereo = (*env)->GetBooleanField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "stereo", "Z"));
jboolean floating_point = (*env)->GetBooleanField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "floating_point", "Z"));
jboolean floating_point_packed = (*env)->GetBooleanField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "floating_point_packed", "Z"));
jboolean sRGB = (*env)->GetBooleanField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "sRGB", "Z"));
int pixel_type;
int iPixelFormat;
unsigned int num_formats_returned;
attrib_list_t attrib_list;
GLuint *pixelFormatCaps_ptr;
jlong pixelFormatCapsSize;
BOOL result;
jlong i;
int bpe = convertToBPE(bpp);
if ( floating_point )
pixel_type = WGL_TYPE_RGBA_FLOAT_ARB;
else if ( floating_point_packed )
pixel_type = WGL_TYPE_RGBA_UNSIGNED_FLOAT_EXT;
else
pixel_type = WGL_TYPE_RGBA_ARB;
initAttribList(&attrib_list);
if (window) {
putAttrib(&attrib_list, WGL_DRAW_TO_WINDOW_ARB); putAttrib(&attrib_list, TRUE);
}
if (pbuffer) {
putAttrib(&attrib_list, WGL_DRAW_TO_PBUFFER_ARB); putAttrib(&attrib_list, TRUE);
}
if (!getBooleanProperty(env, "org.lwjgl.opengl.Display.allowSoftwareOpenGL")) {
putAttrib(&attrib_list, WGL_ACCELERATION_ARB); putAttrib(&attrib_list, WGL_FULL_ACCELERATION_ARB);
}
putAttrib(&attrib_list, WGL_PIXEL_TYPE_ARB); putAttrib(&attrib_list, pixel_type);
putAttrib(&attrib_list, WGL_DOUBLE_BUFFER_ARB); putAttrib(&attrib_list, double_buffer ? TRUE : FALSE);
putAttrib(&attrib_list, WGL_SUPPORT_OPENGL_ARB); putAttrib(&attrib_list, TRUE);
putAttrib(&attrib_list, WGL_RED_BITS_ARB); putAttrib(&attrib_list, bpe);
putAttrib(&attrib_list, WGL_GREEN_BITS_ARB); putAttrib(&attrib_list, bpe);
putAttrib(&attrib_list, WGL_BLUE_BITS_ARB); putAttrib(&attrib_list, bpe);
putAttrib(&attrib_list, WGL_ALPHA_BITS_ARB); putAttrib(&attrib_list, alpha);
putAttrib(&attrib_list, WGL_DEPTH_BITS_ARB); putAttrib(&attrib_list, depth);
putAttrib(&attrib_list, WGL_STENCIL_BITS_ARB); putAttrib(&attrib_list, stencil);
// Assume caller checked extension availability
if (samples > 0) {
putAttrib(&attrib_list, WGL_SAMPLE_BUFFERS_ARB); putAttrib(&attrib_list, 1);
putAttrib(&attrib_list, WGL_SAMPLES_ARB); putAttrib(&attrib_list, samples); // WGL_COVERAGE_SAMPLES_NV if colorSamples > 0
if ( colorSamples > 0 ) {
putAttrib(&attrib_list, WGL_COLOR_SAMPLES_NV); putAttrib(&attrib_list, colorSamples);
}
}
putAttrib(&attrib_list, WGL_ACCUM_BITS_ARB); putAttrib(&attrib_list, accum_bpp);
putAttrib(&attrib_list, WGL_ACCUM_ALPHA_BITS_ARB); putAttrib(&attrib_list, accum_alpha);
putAttrib(&attrib_list, WGL_STEREO_ARB); putAttrib(&attrib_list, stereo ? TRUE : FALSE);
putAttrib(&attrib_list, WGL_AUX_BUFFERS_ARB); putAttrib(&attrib_list, num_aux_buffers);
if (sRGB) {
putAttrib(&attrib_list, WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB); putAttrib(&attrib_list, TRUE);
}
// Assume caller checked extension availability
if (pixelFormatCaps != NULL) {
pixelFormatCaps_ptr = (GLuint *)(*env)->GetDirectBufferAddress(env, pixelFormatCaps);
pixelFormatCapsSize = (*env)->GetDirectBufferCapacity(env, pixelFormatCaps);
for (i = 0; i < pixelFormatCapsSize; i++)
putAttrib(&attrib_list, pixelFormatCaps_ptr[i]);
}
putAttrib(&attrib_list, 0); putAttrib(&attrib_list, 0);
result = extensions->wglChoosePixelFormatARB(hdc, attrib_list.attribs, NULL, 1, &iPixelFormat, &num_formats_returned);
if (result == FALSE || num_formats_returned < 1) {
throwFormattedException(env, "Failed to find ARB pixel format %d %d\n", result, num_formats_returned);
return -1;
}
return iPixelFormat;
}
