void RayTracingImageCudaMOO::setPixel(int i, int j, float t)
{
unsigned char R, G, B;
float3 hsb = compute(i, j, t, ptrHostSphereArray, nbSphere);
ColorTools::HSB_TO_RGB(hsb.x, hsb.y, hsb.z, R, G, B);
setRGBA(i, j, R, G, B, 255);
}
void PerlinImageOMP::refreshAll(const DomaineMaths& domainNew){
const int w = getW();
const int h = getH();
const float dx = (float) (domainNew.dx / (float) w);
const float dy = (float) (domainNew.dy / (float) h);
#pragma omp parallel
{
int tid = omp_get_thread_num();
int i = tid + 1;
float y = domainNew.y0 + tid * dy;
while(i <= h){
float x = domainNew.x0;
for(int j = 1; j <= w; ++j){
float c = perlinNoise(x,y,t);
setRGBA(i, j, 135, 206, 250, c * 255.0);
x += dx;
}
y += THREADS * dy;
i += THREADS;
}
}
}
static PyObject* pySetRGBA(PyObject *self, PyObject *args) {
int r,g,b,a;
if(!PyArg_ParseTuple(args, "iiii", &r,&g,&b,&a))
return NULL;
setRGBA(r,g,b,a);
Py_RETURN_NONE;
}
// I don't think this is being used at the moment.
void xmlgui::LabeledControl::drawAllLabels() {
xmlgui::Resources::bindFont();
setRGBA(0xFFFFFF);
for(int i = 0; i < labels.size(); i++) {
//xmlgui::Resources::drawString(this, labels[i].second,labels[i].first.x, labels[i].first.y);
}
xmlgui::Resources::unbindFont();
labels.clear();
}
void xmlgui::LabeledControl::drawCustomLabel(string label, float x, float y) {
if(drawingLabel) {
if(parent->isOpaque() && x==this->x) {
ofSetColor(0, 0, 0, 150);
ofRect( x, y-10, width, 14);
}
setRGBA(labelColor);
xmlgui::Resources::drawString(this, label, x, y);
// ofVec2f p = parent->getAbsolutePosition();
// labels.push_back(make_pair(ofVec2f(x,y)+p, label));
}
}
void xmlgui::LabeledControl::drawLabel(float x, float y) {
//drawLabelsIfNeeded();
if(drawingLabel) {
if(x==-1) {
x = this->x;
y = this->y - 3;
}
if(parent->isOpaque() && x==this->x) {
ofSetColor(0, 0, 0, 150);
ofRect( x, y-10, width, 14);
}
setRGBA(labelColor);
xmlgui::Resources::drawString(this, name, x, y);
// ofVec2f p = parent->getAbsolutePosition();
// labels.push_back(make_pair(ofVec2f(x,y)+p, name));
}
}
void Pixel::setRGB(int R, int G, int B) {
setRGBA(R, G, B, getA());
}
void RipplingMOO::setPixel(int i, int j, float t)
{
unsigned char r, g, b;
r = g = b = computeColor(i, j, t, getW(), getH());
setRGBA(i, j, r, g, b);
}
bool BMPImageReader::processRLEData()
{
if (m_decodedOffset > m_data->size())
return false;
// RLE decoding is poorly specified. Two main problems:
// (1) Are EOL markers necessary? What happens when we have too many
// pixels for one row?
// http://www.fileformat.info/format/bmp/egff.htm says extra pixels
// should wrap to the next line. Real BMPs I've encountered seem to
// instead expect extra pixels to be ignored until the EOL marker is
// seen, although this has only happened in a few cases and I suspect
// those BMPs may be invalid. So we only change lines on EOL (or Delta
// with dy > 0), and fail in most cases when pixels extend past the end
// of the line.
// (2) When Delta, EOL, or EOF are seen, what happens to the "skipped"
// pixels?
// http://www.daubnet.com/formats/BMP.html says these should be filled
// with color 0. However, the "do nothing" and "don't care" comments
// of other references suggest leaving these alone, i.e. letting them
// be transparent to the background behind the image. This seems to
// match how MSPAINT treats BMPs, so we do that. Note that when we
// actually skip pixels for a case like this, we need to note on the
// framebuffer that we have alpha.
// Impossible to decode row-at-a-time, so just do things as a stream of
// bytes.
while (true) {
// Every entry takes at least two bytes; bail if there isn't enough
// data.
if ((m_data->size() - m_decodedOffset) < 2)
return false;
// For every entry except EOF, we'd better not have reached the end of
// the image.
const uint8_t count = m_data->data()[m_decodedOffset];
const uint8_t code = m_data->data()[m_decodedOffset + 1];
if ((count || (code != 1)) && pastEndOfImage(0))
return m_parent->setFailed();
// Decode.
if (!count) {
switch (code) {
case 0: // Magic token: EOL
// Skip any remaining pixels in this row.
if (m_coord.x() < m_parent->size().width())
m_buffer->setHasAlpha(true);
moveBufferToNextRow();
m_decodedOffset += 2;
break;
case 1: // Magic token: EOF
// Skip any remaining pixels in the image.
if ((m_coord.x() < m_parent->size().width()) || (m_isTopDown ? (m_coord.y() < (m_parent->size().height() - 1)) : (m_coord.y() > 0)))
m_buffer->setHasAlpha(true);
return true;
case 2: { // Magic token: Delta
// The next two bytes specify dx and dy. Bail if there isn't
// enough data.
if ((m_data->size() - m_decodedOffset) < 4)
return false;
// Fail if this takes us past the end of the desired row or
// past the end of the image.
const uint8_t dx = m_data->data()[m_decodedOffset + 2];
const uint8_t dy = m_data->data()[m_decodedOffset + 3];
if (dx || dy)
m_buffer->setHasAlpha(true);
if (((m_coord.x() + dx) > m_parent->size().width()) || pastEndOfImage(dy))
return m_parent->setFailed();
// Skip intervening pixels.
m_coord.move(dx, m_isTopDown ? dy : -dy);
m_decodedOffset += 4;
break;
}
default: { // Absolute mode
// |code| pixels specified as in BI_RGB, zero-padded at the end
// to a multiple of 16 bits.
// Because processNonRLEData() expects m_decodedOffset to
// point to the beginning of the pixel data, bump it past
// the escape bytes and then reset if decoding failed.
m_decodedOffset += 2;
const ProcessingResult result = processNonRLEData(true, code);
if (result == Failure)
return m_parent->setFailed();
if (result == InsufficientData) {
m_decodedOffset -= 2;
return false;
}
break;
}
}
} else { // Encoded mode
// The following color data is repeated for |count| total pixels.
// Strangely, some BMPs seem to specify excessively large counts
// here; ignore pixels past the end of the row.
const int endX = std::min(m_coord.x() + count, m_parent->size().width());
if (m_infoHeader.biCompression == RLE24) {
// Bail if there isn't enough data.
if ((m_data->size() - m_decodedOffset) < 4)
return false;
// One BGR triple that we copy |count| times.
fillRGBA(endX, m_data->data()[m_decodedOffset + 3], m_data->data()[m_decodedOffset + 2], code, 0xff);
m_decodedOffset += 4;
} else {
// RLE8 has one color index that gets repeated; RLE4 has two
// color indexes in the upper and lower 4 bits of the byte,
// which are alternated.
size_t colorIndexes[2] = {code, code};
if (m_infoHeader.biCompression == RLE4) {
colorIndexes[0] = (colorIndexes[0] >> 4) & 0xf;
colorIndexes[1] &= 0xf;
}
for (int which = 0; m_coord.x() < endX; ) {
// Some images specify color values past the end of the
// color table; set these pixels to black.
if (colorIndexes[which] < m_infoHeader.biClrUsed)
setI(colorIndexes[which]);
else
setRGBA(0, 0, 0, 255);
which = !which;
}
m_decodedOffset += 2;
}
}
}
Color4(const float r, const float g, const float b, const float a) {setRGBA(r, g, b, a);}
Color4(const float* rgba) {setRGBA(rgba);}