void keyboard(unsigned char key, int x, int y)
{
switch (key)
{
case 27:
exit(EXIT_SUCCESS);
break;
case '=':
case '+':
w += 0.01f;
break;
case '-':
w -= 0.01f;
break;
case 'f':
linearFiltering = !linearFiltering;
setTextureFilterMode(linearFiltering);
break;
case ' ':
animate = !animate;
break;
default:
break;
}
glutPostRedisplay();
}
void keyboard(unsigned char key, int x, int y)
{
switch(key) {
case 27:
exit(0);
break;
case 'f':
linearFiltering = !linearFiltering;
setTextureFilterMode(linearFiltering);
break;
case '=':
density += 0.01;
break;
case '-':
density -= 0.01;
break;
case '+':
density += 0.1;
break;
case '_':
density -= 0.1;
break;
case ']':
brightness += 0.1;
break;
case '[':
brightness -= 0.1;
break;
case ';':
transferOffset += 0.01;
break;
case '\'':
transferOffset -= 0.01;
break;
case '.':
transferScale += 0.01;
break;
case ',':
transferScale -= 0.01;
break;
default:
break;
}
shrLog("density = %.2f, brightness = %.2f, transferOffset = %.2f, transferScale = %.2f\n", density, brightness, transferOffset, transferScale);
glutPostRedisplay();
}
ImageGL::ImageGL(unsigned int nDispWidth,
unsigned int nDispHeight,
unsigned int nTexWidth,
unsigned int nTexHeight,
bool bVsync,
PixelFormat ePixelFormat)
: nWidth_(nDispWidth)
, nHeight_(nDispHeight)
, nTexWidth_(nTexWidth)
, nTexHeight_(nTexHeight)
, e_PixFmt_(ePixelFormat)
, bVsync_(bVsync)
, bIsCudaResource_(false)
{
int nFrames = bVsync_ ? 3 : 1;
glGenBuffersARB(nFrames, gl_pbo_);
for (int n=0; n < nFrames; n++)
{
glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, gl_pbo_[n]);
glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_ARB, nTexWidth*nTexHeight*4, NULL, GL_STREAM_DRAW_ARB);
glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
registerAsCudaResource(n);
}
// create texture for display
glGenTextures(nFrames, gl_texid_);
// setup the Texture filtering mode
setTextureFilterMode(GL_NEAREST, GL_NEAREST);
// load gl_shader_ program
gl_shader_ = compile_glsl_shader(GL_FRAGMENT_PROGRAM_ARB, gl_shader_code);
glPrimitiveRestartIndex(65535);
glEnable(GL_PRIMITIVE_RESTART);
}
