/*
* Copyright (c) 2002-2008 LWJGL Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of 'LWJGL' nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* $Id$
*
* Include file to access public window features
*
* @author elias_naur <elias_naur@users.sourceforge.net>
* @version $Revision$
*/
#include <jni.h>
#include <X11/X.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include "extgl_glx.h"
#include "context.h"
XVisualInfo *getVisualInfoFromPeerInfo(JNIEnv *env, X11PeerInfo *peer_info) {
XVisualInfo *vis_info;
if (!peer_info->glx13) {
XVisualInfo template;
template.visualid = peer_info->config.glx_config.visualid;
template.depth = peer_info->config.glx_config.depth;
template.screen = peer_info->screen;
int num_infos;
vis_info = XGetVisualInfo(peer_info->display, VisualIDMask | VisualScreenMask | VisualDepthMask, &template, &num_infos);
if (vis_info == NULL) {
throwException(env, "Could not find VisualInfo from peer info");
return NULL;
}
// Check the assumption from GLX 1.3 docs that a VisualInfo is uniquely identified by its
// {VisualID, screen, depth} tuple
if (num_infos != 1) {
XFree(vis_info);
throwException(env, "No unique VisualInfo matches peer info");
return NULL;
}
} else {
GLXFBConfig *configs = getFBConfigFromPeerInfo(env, peer_info);
if (configs == NULL)
return NULL;
vis_info = lwjgl_glXGetVisualFromFBConfig(peer_info->display, configs[0]);
if (vis_info == NULL)
throwException(env, "Could not get VisualInfo from GLX 1.3 config");
XFree(configs);
}
return vis_info;
}
GLXFBConfig *getFBConfigFromPeerInfo(JNIEnv *env, X11PeerInfo *peer_info) {
int attribs[] = {GLX_FBCONFIG_ID, peer_info->config.glx13_config.config_id, None, None};
int num_elements;
GLXFBConfig *configs = lwjgl_glXChooseFBConfig(peer_info->display, peer_info->screen, attribs, &num_elements);
if (configs == NULL) {
throwException(env, "Could not find GLX 1.3 config from peer info");
return NULL;
}
// Check that only one FBConfig matches the config id
if (num_elements != 1) {
XFree(configs);
throwException(env, "No unique GLX 1.3 config matches peer info");
return NULL;
}
return configs;
}
static int convertToBPE(int bpp) {
int bpe;
switch (bpp) {
case 0:
bpe = 0;
break;
case 32:
case 24:
bpe = 8;
break;
case 16: /* Fall through */
default:
bpe = 4;
break;
}
return bpe;
}
static GLXFBConfig *chooseVisualGLX13FromBPP(JNIEnv *env, Display *disp, int screen, jobject pixel_format, int bpp, int drawable_type, 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"));
bool stereo = (bool)(*env)->GetBooleanField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "stereo", "Z"));
bool floating_point = (bool)(*env)->GetBooleanField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "floating_point", "Z"));
bool floating_point_packed = (bool)(*env)->GetBooleanField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "floating_point_packed", "Z"));
bool sRGB = (bool)(*env)->GetBooleanField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "sRGB", "Z"));
int bpe = convertToBPE(bpp);
int accum_bpe = convertToBPE(accum_bpp);
attrib_list_t attrib_list;
initAttribList(&attrib_list);
int render_type;
if ( floating_point )
render_type = GLX_RGBA_FLOAT_BIT;
else if ( floating_point_packed )
render_type = GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT;
else
render_type = GLX_RGBA_BIT;
putAttrib(&attrib_list, GLX_RENDER_TYPE); putAttrib(&attrib_list, render_type);
putAttrib(&attrib_list, GLX_DOUBLEBUFFER); putAttrib(&attrib_list, double_buffer ? True : False);
putAttrib(&attrib_list, GLX_DRAWABLE_TYPE); putAttrib(&attrib_list, drawable_type);
putAttrib(&attrib_list, GLX_DEPTH_SIZE); putAttrib(&attrib_list, depth);
putAttrib(&attrib_list, GLX_RED_SIZE); putAttrib(&attrib_list, bpe);
putAttrib(&attrib_list, GLX_GREEN_SIZE); putAttrib(&attrib_list, bpe);
putAttrib(&attrib_list, GLX_BLUE_SIZE); putAttrib(&attrib_list, bpe);
putAttrib(&attrib_list, GLX_ALPHA_SIZE); putAttrib(&attrib_list, alpha);
putAttrib(&attrib_list, GLX_STENCIL_SIZE); putAttrib(&attrib_list, stencil);
putAttrib(&attrib_list, GLX_AUX_BUFFERS); putAttrib(&attrib_list, num_aux_buffers);
putAttrib(&attrib_list, GLX_ACCUM_RED_SIZE); putAttrib(&attrib_list, accum_bpe);
putAttrib(&attrib_list, GLX_ACCUM_GREEN_SIZE); putAttrib(&attrib_list, accum_bpe);
putAttrib(&attrib_list, GLX_ACCUM_BLUE_SIZE); putAttrib(&attrib_list, accum_bpe);
putAttrib(&attrib_list, GLX_ACCUM_ALPHA_SIZE); putAttrib(&attrib_list, accum_alpha);
if (stereo) {
putAttrib(&attrib_list, GLX_STEREO); putAttrib(&attrib_list, True);
}
// Assume the caller has checked support for multisample
if (samples > 0) {
putAttrib(&attrib_list, GLX_SAMPLE_BUFFERS_ARB); putAttrib(&attrib_list, 1);
putAttrib(&attrib_list, GLX_SAMPLES_ARB); putAttrib(&attrib_list, samples); // GLX_COVERAGE_SAMPLES_NV if colorSamples > 0
if ( colorSamples > 0 ) {
putAttrib(&attrib_list, GLX_COLOR_SAMPLES_NV); putAttrib(&attrib_list, colorSamples);
}
}
if (sRGB) {
putAttrib(&attrib_list, GLX_FRAMEBUFFER_SRGB_CAPABLE_ARB); putAttrib(&attrib_list, True);
}
putAttrib(&attrib_list, None); putAttrib(&attrib_list, None);
int num_formats = 0;
GLXFBConfig* configs = lwjgl_glXChooseFBConfig(disp, screen, attrib_list.attribs, &num_formats);
if (num_formats > 0) {
return configs;
} else {
if (configs != NULL)
XFree(configs);
return NULL;
}
}
GLXFBConfig *chooseVisualGLX13(JNIEnv *env, Display *disp, int screen, jobject pixel_format, bool use_display_bpp, int drawable_type, bool double_buffer) {
jclass cls_pixel_format = (*env)->GetObjectClass(env, pixel_format);
int bpp;
if (use_display_bpp) {
bpp = XDefaultDepthOfScreen(XScreenOfDisplay(disp, screen));
GLXFBConfig *configs = chooseVisualGLX13FromBPP(env, disp, screen, pixel_format, bpp, drawable_type, double_buffer);
if (configs != NULL)
return configs;
else
bpp = 16;
} else
bpp = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "bpp", "I"));
return chooseVisualGLX13FromBPP(env, disp, screen, pixel_format, bpp, drawable_type, double_buffer);
}
static XVisualInfo *chooseVisualGLXFromBPP(JNIEnv *env, Display *disp, int screen, jobject pixel_format, int bpp, 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"));
bool stereo = (bool)(*env)->GetBooleanField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "stereo", "Z"));
bool sRGB = (bool)(*env)->GetBooleanField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "sRGB", "Z"));
int bpe = convertToBPE(bpp);
int accum_bpe = convertToBPE(accum_bpp);
attrib_list_t attrib_list;
initAttribList(&attrib_list);
putAttrib(&attrib_list, GLX_RGBA);
putAttrib(&attrib_list, GLX_DOUBLEBUFFER);
putAttrib(&attrib_list, GLX_DEPTH_SIZE); putAttrib(&attrib_list, depth);
putAttrib(&attrib_list, GLX_RED_SIZE); putAttrib(&attrib_list, bpe);
putAttrib(&attrib_list, GLX_GREEN_SIZE); putAttrib(&attrib_list, bpe);
putAttrib(&attrib_list, GLX_BLUE_SIZE); putAttrib(&attrib_list, bpe);
putAttrib(&attrib_list, GLX_ALPHA_SIZE); putAttrib(&attrib_list, alpha);
putAttrib(&attrib_list, GLX_STENCIL_SIZE); putAttrib(&attrib_list, stencil);
putAttrib(&attrib_list, GLX_AUX_BUFFERS); putAttrib(&attrib_list, num_aux_buffers);
putAttrib(&attrib_list, GLX_ACCUM_RED_SIZE); putAttrib(&attrib_list, accum_bpe);
putAttrib(&attrib_list, GLX_ACCUM_GREEN_SIZE); putAttrib(&attrib_list, accum_bpe);
putAttrib(&attrib_list, GLX_ACCUM_BLUE_SIZE); putAttrib(&attrib_list, accum_bpe);
putAttrib(&attrib_list, GLX_ACCUM_ALPHA_SIZE); putAttrib(&attrib_list, accum_alpha);
if (stereo)
putAttrib(&attrib_list, GLX_STEREO);
// Assume the caller has checked support for multisample
if (samples > 0) {
putAttrib(&attrib_list, GLX_SAMPLE_BUFFERS_ARB); putAttrib(&attrib_list, 1);
putAttrib(&attrib_list, GLX_SAMPLES_ARB); putAttrib(&attrib_list, samples); // GLX_COVERAGE_SAMPLES_NV if colorSamples > 0
if ( colorSamples > 0 )
putAttrib(&attrib_list, GLX_COLOR_SAMPLES_NV); putAttrib(&attrib_list, colorSamples);
}
if (sRGB)
putAttrib(&attrib_list, GLX_FRAMEBUFFER_SRGB_CAPABLE_ARB);
putAttrib(&attrib_list, None);
return lwjgl_glXChooseVisual(disp, screen, attrib_list.attribs);
}
XVisualInfo *chooseVisualGLX(JNIEnv *env, Display *disp, int screen, jobject pixel_format, bool use_display_bpp, bool double_buffer) {
jclass cls_pixel_format = (*env)->GetObjectClass(env, pixel_format);
int bpp;
if (use_display_bpp) {
bpp = XDefaultDepthOfScreen(XScreenOfDisplay(disp, screen));
XVisualInfo *vis_info = chooseVisualGLXFromBPP(env, disp, screen, pixel_format, bpp, double_buffer);
if (vis_info != NULL)
return vis_info;
else
bpp = 16;
} else
bpp = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "bpp", "I"));
return chooseVisualGLXFromBPP(env, disp, screen, pixel_format, bpp, double_buffer);
}
static void dumpVisualInfo(JNIEnv *env, Display *display, GLXExtensions *extension_flags, XVisualInfo *vis_info) {
int alpha, depth, stencil, r, g, b;
int sample_buffers = 0;
int samples = 0;
lwjgl_glXGetConfig(display, vis_info, GLX_RED_SIZE, &r);
lwjgl_glXGetConfig(display, vis_info, GLX_GREEN_SIZE, &g);
lwjgl_glXGetConfig(display, vis_info, GLX_BLUE_SIZE, &b);
lwjgl_glXGetConfig(display, vis_info, GLX_ALPHA_SIZE, &alpha);
lwjgl_glXGetConfig(display, vis_info, GLX_DEPTH_SIZE, &depth);
lwjgl_glXGetConfig(display, vis_info, GLX_STENCIL_SIZE, &stencil);
if (extension_flags->GLX_ARB_multisample) {
lwjgl_glXGetConfig(display, vis_info, GLX_SAMPLE_BUFFERS_ARB, &sample_buffers);
lwjgl_glXGetConfig(display, vis_info, GLX_SAMPLES_ARB, &samples);
}
printfDebugJava(env, "Pixel format info: r = %d, g = %d, b = %d, a = %d, depth = %d, stencil = %d, sample buffers = %d, samples = %d", r, g, b, alpha, depth, stencil, sample_buffers, samples);
}
bool initPeerInfo(JNIEnv *env, jobject peer_info_handle, Display *display, int screen, jobject pixel_format, bool use_display_bpp, int drawable_type, bool double_buffered, bool force_glx13) {
if ((*env)->GetDirectBufferCapacity(env, peer_info_handle) < sizeof(X11PeerInfo)) {
throwException(env, "Handle too small");
return false;
}
X11PeerInfo *peer_info = (*env)->GetDirectBufferAddress(env, peer_info_handle);
GLXExtensions extension_flags;
if (!extgl_InitGLX(display, screen, &extension_flags)) {
throwException(env, "Could not init GLX");
return false;
}
if (!extension_flags.GLX13 && force_glx13) {
throwException(env, "GLX13 is required, but is not available");
return false;
}
jclass cls_pixel_format = (*env)->GetObjectClass(env, pixel_format);
int samples = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "samples", "I"));
if (samples > 0 && !extension_flags.GLX_ARB_multisample) {
throwException(env, "Samples > 0 specified but there's no support for GLX_ARB_multisample");
return false;
}
int colorSamples = (int)(*env)->GetIntField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "colorSamples", "I"));
if (colorSamples > 0 && !extension_flags.GLX_NV_multisample_coverage) {
throwException(env, "Color samples > 0 specified but there's no support for GLX_NV_multisample_coverage");
return false;
}
bool floating_point = (bool)(*env)->GetBooleanField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "floating_point", "Z"));
if (floating_point && !(extension_flags.GLX13 && extension_flags.GLX_ARB_fbconfig_float)) { // We need GLX13 to support floating point
throwException(env, "Floating point specified but there's no support for GLX_ARB_fbconfig_float");
return false;
}
bool floating_point_packed = (bool)(*env)->GetBooleanField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "floating_point_packed", "Z"));
if (floating_point_packed && !(extension_flags.GLX13 && extension_flags.GLX_EXT_fbconfig_packed_float)) { // We need GLX13 to support packed floating point
throwException(env, "Packed floating point specified but there's no support for GLX_EXT_fbconfig_packed_float");
return false;
}
bool sRGB = (bool)(*env)->GetBooleanField(env, pixel_format, (*env)->GetFieldID(env, cls_pixel_format, "sRGB", "Z"));
if (sRGB && !extension_flags.GLX_ARB_framebuffer_sRGB) {
throwException(env, "sRGB specified but there's no support for GLX_ARB_framebuffer_sRGB");
return false;
}
peer_info->glx13 = extension_flags.GLX13;
if (peer_info->glx13) {
GLXFBConfig *configs = chooseVisualGLX13(env, display, screen, pixel_format, use_display_bpp, drawable_type, double_buffered);
if (configs == NULL) {
throwException(env, "Could not choose GLX13 config");
return false;
}
if (isDebugEnabled()) {
XVisualInfo *vis_info = lwjgl_glXGetVisualFromFBConfig(display, configs[0]);
if (vis_info != NULL) {
dumpVisualInfo(env, display, &extension_flags, vis_info);
XFree(vis_info);
}
}
int config_id;
int result = lwjgl_glXGetFBConfigAttrib(display, configs[0], GLX_FBCONFIG_ID, &config_id);
XFree(configs);
if (result != Success) {
throwException(env, "Could not get GLX_FBCONFIG_ID from GLXFBConfig");
return false;
}
peer_info->config.glx13_config.config_id = config_id;
} else {
XVisualInfo *vis_info = chooseVisualGLX(env, display, screen, pixel_format, use_display_bpp, double_buffered);
if (vis_info == NULL) {
throwException(env, "Could not choose visual");
return false;
}
peer_info->config.glx_config.visualid = vis_info->visualid;
peer_info->config.glx_config.depth = vis_info->depth;
peer_info->screen = vis_info->screen;
if (isDebugEnabled())
dumpVisualInfo(env, display, &extension_flags, vis_info);
XFree(vis_info);
}
peer_info->display = display;
peer_info->screen = screen;
peer_info->drawable = None;
return true;
}
