void Texture2D::init(int w, int h, TextureInternalFormat tf, TextureFormat f, PixelType t,
const Parameters ¶ms, const Buffer::Parameters &s, const Buffer &pixels)
{
Texture::init(tf, params);
this->w = w;
this->h = h;
pixels.bind(GL_PIXEL_UNPACK_BUFFER);
if (isCompressed() && s.compressedSize() > 0) {
glCompressedTexImage2D(textureTarget, 0, getTextureInternalFormat(internalFormat), w, h, 0, s.compressedSize(), pixels.data(0));
} else {
s.set();
glTexImage2D(textureTarget, 0, getTextureInternalFormat(internalFormat), w, h, 0, getTextureFormat(f), getPixelType(t), pixels.data(0));
s.unset();
}
pixels.unbind(GL_PIXEL_UNPACK_BUFFER);
generateMipMap();
if (FrameBuffer::getError() != 0) {
throw exception();
}
}
void Texture2D::setImage(int w, int h, TextureFormat f, PixelType t, const Buffer &pixels)
{
this->w = w;
this->h = h;
bindToTextureUnit();
pixels.bind(GL_PIXEL_UNPACK_BUFFER);
glTexImage2D(textureTarget, 0, getTextureInternalFormat(internalFormat), w, h, 0, getTextureFormat(f), getPixelType(t), pixels.data(0));
pixels.unbind(GL_PIXEL_UNPACK_BUFFER);
generateMipMap();
assert(FrameBuffer::getError() == GL_NO_ERROR);
}
void TextureRectangle::init(int w, int h, TextureInternalFormat tf, TextureFormat f, PixelType t,
const Parameters ¶ms, const Buffer::Parameters &s, const Buffer &pixels)
{
Texture::init(tf, params);
this->w = w;
this->h = h;
pixels.bind(GL_PIXEL_UNPACK_BUFFER);
bool needToGenerateMipmaps = true;
if (isCompressed() && s.compressedSize() > 0) {
glCompressedTexImage2D(textureTarget, 0, getTextureInternalFormat(internalFormat), w, h, 0, s.compressedSize(), pixels.data(0));
} else {
s.set();
glTexImage2D(textureTarget, 0, getTextureInternalFormat(internalFormat), w, h, 0, getTextureFormat(f), getPixelType(t), pixels.data(0));
s.unset();
GLsizei size = s.compressedSize(); // should work because size is retrieved from file descriptor.
int pixelSize = getFormatSize(f, t);
if (size > w * h * pixelSize) {
// get the other levels from the same buffer
int offset = w * h * pixelSize;
int level = 0;
int wl = w;
int hl = h;
while (wl % 2 == 0 && hl % 2 == 0 && size - offset >= (wl * hl / 4) * pixelSize) {
level += 1;
wl = wl / 2;
hl = hl / 2;
glTexImage2D(textureTarget, level, getTextureInternalFormat(internalFormat), wl, hl, 0, getTextureFormat(f), getPixelType(t), pixels.data(offset));
offset += wl * hl * pixelSize;
needToGenerateMipmaps = false;
}
this->params.lodMax(clamp(params.lodMax(), GLfloat(0.0f), GLfloat(level)));
}
}
pixels.unbind(GL_PIXEL_UNPACK_BUFFER);
if (needToGenerateMipmaps) {
generateMipMap();
}
if (FrameBuffer::getError() != 0) {
throw exception();
}
}
void TextureCube::init(int w, int h, TextureInternalFormat tf, TextureFormat f, PixelType t,
const Parameters ¶ms, Buffer::Parameters s[6], ptr<Buffer> pixels[6])
{
Texture::init(tf, params);
this->w = w;
this->h = h;
const GLenum FACES[6] = {
GL_TEXTURE_CUBE_MAP_POSITIVE_X,
GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
GL_TEXTURE_CUBE_MAP_NEGATIVE_Y,
GL_TEXTURE_CUBE_MAP_POSITIVE_Z,
GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
};
if (isCompressed()) {
for (int i = 0; i < 6; ++i) {
pixels[i]->bind(GL_PIXEL_UNPACK_BUFFER);
if (s[i].compressedSize() > 0) {
glCompressedTexImage2D(FACES[i], 0, getTextureInternalFormat(internalFormat), w, h, 0, s[i].compressedSize(), pixels[i]->data(0));
} else {
s[i].set();
glTexImage2D(FACES[i], 0, getTextureInternalFormat(internalFormat), w, h, 0, getTextureFormat(f), getPixelType(t), pixels[i]->data(0));
s[i].unset();
}
pixels[i]->unbind(GL_PIXEL_UNPACK_BUFFER);
}
} else {
for (int i = 0; i < 6; ++i) {
pixels[i]->bind(GL_PIXEL_UNPACK_BUFFER);
s[i].set();
glTexImage2D(FACES[i], 0, getTextureInternalFormat(internalFormat), w, h, 0, getTextureFormat(f), getPixelType(t), pixels[i]->data(0));
s[i].unset();
pixels[i]->unbind(GL_PIXEL_UNPACK_BUFFER);
}
}
generateMipMap();
if (FrameBuffer::getError() != 0) {
throw exception();
}
}
int LRGBPtm::loadData(FILE* file, int width, int height, int basisTerm, bool urti, CallBackPos * cb,const QString& text)
{
w = width;
h = height;
if (!urti)
{
//Gets scale value
bool eof, error;
QString str = getLine(file, &eof);
if (eof) return -1;
QStringList list = str.split(' ', QString::SkipEmptyParts);
if (list.size() != 6)
return -1;
for (int i = 0; i < 6; i++)
{
scale[i] = list[i].toDouble(&error);
if (!error) return -1;
}
//Gets bias value
str = getLine(file, &eof);
if (eof) return -1;
list = str.split(' ', QString::SkipEmptyParts);
if (list.size() != 6)
return -1;
for (int i = 0; i < 6; i++)
{
bias[i] = list[i].toInt(&error);
if (!error) return -1;
}
}
else
{
}
//Allocates array for polynomial coefficients and rgb components
PTMCoefficient* coeffPtr = new PTMCoefficient[w*h];
unsigned char* rgbPtr = new unsigned char[w*h*3];
int offset;
unsigned char c;
//Reads coefficient and rgb components from file
for (int y = h - 1; y >= 0; y--)
{
if (cb != NULL && (y % 50 == 0))(*cb)((h - y) * 40 / h, text);
for (int x = 0; x < w; x++)
{
offset = y * w + x;
for (int i = 0; i < 6; i++)
{
if(feof(file))
return -1;
fread(&c, sizeof(unsigned char), 1, file);
coeffPtr[offset][i] = static_cast<int>((c - bias[i])*scale[i]);
}
if (version == "PTM_1.1")
{
for (int i = 0; i < 3; i++)
{
if (feof(file))
return -1;
fread(&c, sizeof(unsigned char), 1, file);
rgbPtr[offset*3 + i] = c;
}
}
}
}
if (version == "PTM_1.2")
{
for (int y = h - 1; y >= 0; y--)
{
if (cb != NULL && (h-y)%100==0) (*cb)(40 + (h - y) * 10 / h , "Loading LRGB PTM...");
for (int x = 0; x < w; x++)
{
offset = y * w + x;
for (int i = 0; i < 3; i++)
{
if (feof(file))
return -1;
fread(&c, sizeof(unsigned char), 1, file);
rgbPtr[offset*3 + i] = c;
}
}
}
}
fclose(file);
mipMapSize[0] = QSize(w, h);
coefficients.setLevel(coeffPtr, w*h, 0);
rgb.setLevel(rgbPtr, w*h*3, 0);
// Computes mip-mapping and normals.
if (cb != NULL) (*cb)(55, "Mip mapping generation...");
generateMipMap(1, w, h, cb, 55, 20);
calculateNormals(normals, coefficients, true, cb, 75, 20);
return 0;
}
int RGBPtm::loadData(FILE* file, int width, int height, int basisTerm, bool urti, CallBackPos * cb,const QString& text)
{
w = width;
h = height;
if (!urti)
{
//Gets scale value
bool eof, error;
QString str = getLine(file, &eof);
if (eof) return -1;
QStringList list = str.split(' ', QString::SkipEmptyParts);
if (list.size() != 6)
return -1;
for (int i = 0; i < 6; i++)
{
scale[i] = list[i].toDouble(&error);
if (!error) return -1;
}
//Gets bias value
str = getLine(file, &eof);
if (eof) return -1;
list = str.split(' ', QString::SkipEmptyParts);
if (list.size() != basisTerm)
return -1;
for (int i = 0; i < basisTerm; i++)
{
bias[i] = list[i].toInt(&error);
if (!error) return -1;
}
}
else
{
}
//Allocates array for polynomial coefficients
PTMCoefficient* redCoeff = new PTMCoefficient[w*h];
PTMCoefficient* greenCoeff = new PTMCoefficient[w*h];
PTMCoefficient* blueCoeff = new PTMCoefficient[w*h];
//Reads polynomial coefficients
int offset;
unsigned char c;
for (int j = 0; j < 3; j++)
{
for (int y = h - 1; y >= 0; y--)
{
if (cb != NULL && (y % 50) == 0) (*cb)(15*j + (h - y) * 15 / h, text);
for (int x = 0; x < w; x++)
{
offset = y * w + x;
for (int i = 0; i < basisTerm; i++)
{
if(feof(file))
return -1;
fread(&c, sizeof(unsigned char), 1, file);
if (j == 0)
redCoeff[offset][i] = static_cast<int>((c - bias[i])*scale[i]);
else if (j == 1)
greenCoeff[offset][i] = static_cast<int>((c - bias[i])*scale[i]);
else
blueCoeff[offset][i] = static_cast<int>((c - bias[i])*scale[i]);
}
}
}
}
fclose(file);
// Computes mip-mapping-level.
mipMapSize[0] = QSize(w, h);
redCoefficients.setLevel(redCoeff, w*h, 0);
greenCoefficients.setLevel(greenCoeff, w*h, 0);
blueCoefficients.setLevel(blueCoeff, w*h, 0);
if (cb != NULL) (*cb)(45, "Mip mapping generation...");
generateMipMap(1, w, h, cb, 45, 15);
// Computes the normals
calculateNormals(normals, redCoefficients, true, cb, 60, 10);
calculateNormals(normals, greenCoefficients, false, cb, 70, 10);
calculateNormals(normals, blueCoefficients, false, cb, 80, 10);
for(int level = 0; level < MIP_MAPPING_LEVELS; level++)
{
int lenght = normals.getLevelLenght(level);
vcg::Point3f* tempNormals = new vcg::Point3f[lenght];
memcpy(tempNormals, normals.getLevel(level), sizeof(vcg::Point3f)*lenght);
int th_id = 0;
#pragma omp parallel for
for (int i = 0; i < lenght; i++)
{
th_id = omp_get_thread_num();
if (th_id == 0)
{
if (cb != NULL && i%500 == 0) (*cb)(90 + level*2.5 + 2.5 * i / lenght, "Normals generation...");
}
tempNormals[i] /= 3;
tempNormals[i].Normalize();
}
normals.setLevel(tempNormals, lenght, level);
}
return 0;
}
BBTexture* BBTextureStore_load (BBTextureStore* texStore, const char* name, int startLodLevel)
{
BBTexture* texture = NULL;
BBTga* tga[MAX_MIPMAPS];
char filename[256];
GLsizei level = 0;
GLboolean bottomOk = GL_TRUE;
GLsizei width = 1;
GLsizei height = 1;
BB_ASSERT(texStore && name);
memset(tga, 0, sizeof(BBTga*) * MAX_MIPMAPS);
texture = BBTextureStore_find(texStore, name, GL_TEXTURE_2D);
if (texture)
return texture;
if (strlen(name) > 240)
{
#ifdef BB_DEVEL
printf("Error: Filename too long \"%s\"\n", name);
#endif
return NULL;
}
while (width >= 1 || height >= 1)
{
if (width < 1)
width = 1;
if (height < 1)
height = 1;
strcpy(filename, name);
catenateMipMapFilename(filename, level + startLodLevel);
strcat(filename, ".tga");
tga[level] = BBTga_load(filename);
if (!tga[level])
{
if (level == 0)
{
bottomOk = GL_FALSE;
break;
}
}
else
{
if (level == 0)
{
width = tga[0]->width;
height = tga[0]->height;
}
else
{
if (tga[level]->width != width ||
tga[level]->height != height ||
tga[level]->bits != tga[0]->bits)
{
BBTga_destroy(tga[level]);
tga[level] = NULL;
}
}
}
width >>= 1;
height >>= 1;
level++;
BB_ASSERT(level < MAX_MIPMAPS);
}
if (bottomOk)
{
void* dataList[MAX_MIPMAPS];
GLboolean generated[MAX_MIPMAPS];
GLsizei i;
GLboolean errorsInMipMaps = GL_FALSE;
memset(dataList, 0, sizeof(void*) * MAX_MIPMAPS);
memset(generated, 0, sizeof(GLboolean) * MAX_MIPMAPS);
for (i = 0; i < level; i++)
{
if (tga[i] && tga[i]->data)
{
dataList[i] = tga[i]->data;
}
else
{
GLsizei bpp = tga[0]->bits == 24 ? 3 : 4;
GLsizei width = tga[0]->width >> i;
GLsizei height = tga[0]->height >> i;
BB_ASSERT(i != 0 || (width < 1 && height < 1));
if (width < 1)
width = 1;
if (height < 1)
height = 1;
dataList[i] = (GLubyte*)malloc(width * height * bpp * sizeof(GLubyte));
if (dataList[i])
{
generateMipMap(tga[0]->data, tga[0]->width, tga[0]->height, tga[0]->bits == 24 ? GL_RGB : GL_RGBA, i, dataList[i]);
{
strcpy(filename, name);
catenateMipMapFilename(filename, i);
strcat(filename, ".tga");
if (BBTga_save(filename, width, height, tga[0]->bits == 24 ? 3 : 4, dataList[i], GL_TRUE))
{
#ifdef BB_DEVEL
printf("Generated mipmap level %d for texture %s.\n", i, name);
#endif
}
else
{
#ifdef BB_DEVEL
printf("Failed to save mipmap level %d for texture %s.\n", i, name);
#endif
}
}
generated[i] = GL_TRUE;
}
else
{
errorsInMipMaps = GL_TRUE;
break;
}
}
}
if (!errorsInMipMaps)
texture = BBTexture_create(name, tga[0]->width, tga[0]->height, GL_TEXTURE_2D, tga[0]->bits == 24 ? GL_RGB : GL_RGBA, (const void **)dataList);
for (i = 0; i < level; i++)
{
if (generated[i])
free(dataList[i]);
}
}
while (level-- > 0)
{
if (tga[level])
{
BBTga_destroy(tga[level]);
tga[level] = NULL;
}
}
if (texture)
{
texture->next = texStore->firstTexture;
texStore->firstTexture = texture;
}
return texture;
}