//Load the BMP file
GLubyte* TextureLoadBitmap(char *filename, int *w, int *h) /* I - Bitmap file to load */
{
BITMAPINFO *info; /* Bitmap information */
void *bits; /* Bitmap pixel bits */
GLubyte *rgb; /* Bitmap RGB pixels */
GLubyte err = '0';
/*
* Try loading the bitmap and converting it to RGB...
*/
bits = LoadDIBitmap(filename, &info);
if(bits==NULL)
return(NULL);
rgb = ConvertRGB(info, bits);
if (rgb == NULL)
{
free(info);
free(bits);
};
printf("%s: %d %d\n", filename, info->bmiHeader.biWidth, info->bmiHeader.biHeight);
printf("read %s successfully\n", filename);
*w = info->bmiHeader.biWidth;
*h = info->bmiHeader.biHeight;
/*
* Free the bitmap and RGB images, then return 0 (no errors).
*/
free(info);
free(bits);
return (rgb);
}
GLubyte * /* O - RGBA bitmap data */
LoadRGBA(const char *filename, /* I - Filename */
BITMAPINFO **info) /* O - Bitmap information */
{
GLubyte *bgr; /* BGR bitmap data */
GLubyte *rgba; /* RGBA bitmap data */
int x, y; /* Looping vars */
int length; /* Length of scanline */
GLubyte *bgr_ptr; /* Pointer into BGR data */
GLubyte *rgba_ptr; /* Pointer into RGBA data */
bgr = LoadDIBitmap(filename, info);
rgba = malloc((*info)->bmiHeader.biWidth *
(*info)->bmiHeader.biHeight * 4);
length = ((*info)->bmiHeader.biWidth * 3 + 3) & ~3;
for (y = 0; y < (*info)->bmiHeader.biHeight; y ++)
{
bgr_ptr = bgr + y * length;
rgba_ptr = rgba + y * (*info)->bmiHeader.biWidth * 4;
for (x = 0; x < (*info)->bmiHeader.biWidth; x ++, bgr_ptr += 3, rgba_ptr += 4)
{
rgba_ptr[0] = bgr_ptr[2];
rgba_ptr[1] = bgr_ptr[1];
rgba_ptr[2] = bgr_ptr[0];
rgba_ptr[3] = (bgr_ptr[0] + bgr_ptr[1] + bgr_ptr[2]) / 3;
}
}
free(bgr);
return (rgba);
}
static void LoadImage(bytemap_t *image, const char *filename)
{
int i, j;
unsigned char *image_buffer = NULL;
BITMAPINFO *image_info = NULL;
if (image_info) free(image_info);
image_buffer = LoadDIBitmap(filename, &image_info);
#if 0
assert(image_info->bmiHeader.biWidth == display_width);
assert(image_info->bmiHeader.biHeight == display_height);
assert(image_info->bmiHeader.biBitCount == 8);
printf("image_info->bmiHeader.biSize %d\n", image_info->bmiHeader.biSize);
printf("image_info->bmiHeader.biWidth %d\n", image_info->bmiHeader.biWidth);
printf("image_info->bmiHeader.biHeight %d\n", image_info->bmiHeader.biHeight);
printf("image_info->bmiHeader.biPlanes %d\n", image_info->bmiHeader.biPlanes);
printf("image_info->bmiHeader.biBitCount %d\n", image_info->bmiHeader.biBitCount);
printf("image_info->bmiHeader.biCompression %d\n", image_info->bmiHeader.biCompression);
printf("image_info->bmiHeader.biSizeImage %d\n", image_info->bmiHeader.biSizeImage);
printf("image_info->bmiHeader.biXPelsPerMeter %d\n", image_info->bmiHeader.biXPelsPerMeter);
printf("image_info->bmiHeader.biYPelsPerMeter %d\n", image_info->bmiHeader.biYPelsPerMeter);
printf("image_info->bmiHeader.biClrUsed %d\n", image_info->bmiHeader.biClrUsed);
printf("image_info->bmiHeader.biClrImportant %d\n", image_info->bmiHeader.biClrImportant);
#endif
// read to bytemap
for (j = 0; j < image->header.height; j++) {
memcpy(image->buffer+(image->header.height-1-j)*image->header.pitch,
image_buffer+j*image_info->bmiHeader.biWidth,
image_info->bmiHeader.biWidth);
}
free(image_info);
free(image_buffer);
}
GLubyte * DIBitmap::LoadRGBA(const char *filename, BITMAPINFO **info)
{
GLubyte *bgr; /* BGR bitmap data */
GLubyte *rgba; /* RGBA bitmap data */
int x, y; /* Looping vars */
int length; /* Length of scanline */
GLubyte *bgr_ptr; /* Pointer into BGR data */
GLubyte *rgba_ptr; /* Pointer into RGBA data */
bgr = LoadDIBitmap(filename, info);
rgba = (unsigned char *) malloc((*info)->bmiHeader.biWidth *
(*info)->bmiHeader.biHeight * 4);
length = ((*info)->bmiHeader.biWidth * 3 + 3) & ~3;
for (y = 0; y < (*info)->bmiHeader.biHeight; y ++)
{
bgr_ptr = bgr + y * length;
rgba_ptr = rgba + y * (*info)->bmiHeader.biWidth * 4;
for (x = 0; x < (*info)->bmiHeader.biWidth; x ++, bgr_ptr += 3, rgba_ptr += 4)
{
rgba_ptr[0] = bgr_ptr[2];
rgba_ptr[1] = bgr_ptr[1];
rgba_ptr[2] = bgr_ptr[0];
if(rgba_ptr[0]==_limpidColor[0] &&
rgba_ptr[1]==_limpidColor[1] &&
rgba_ptr[2]==_limpidColor[2])
rgba_ptr[3] = 0;
else rgba_ptr[3] = 255;
}
}
free(bgr);
return (rgba);
}
bool Texture::Load(const std::string& filename)
{
unsigned int w = 0;
unsigned int h = 0;
unsigned char* data = 0;
unsigned int bpp = 3; // bytes per pixel
#ifdef AMJU_USE_SDL_IMG
SDL_Surface* surf = IMG_Load(filename.c_str());
if (!surf)
{
ReportError("Failed to load texture " + filename);
return false;
}
w = surf->w;
h = surf->h;
data = (unsigned char*)surf->pixels;
bpp = surf->format->BytesPerPixel;
#else
std::string ext = ToLower(GetFileExt(filename));
if (ext == "bmp")
{
data = LoadDIBitmap(filename.c_str(), &w, &h);
}
else if (ext == "png")
{
data = LoadPng(filename.c_str(), &w, &h, &bpp);
// TODO I think bmps are upside down, but the rest of the code compensates.. sigh
FlipBmp(data, w, h, bpp);
}
if (!data)
{
ReportError("Failed to load texture " + filename);
return false;
}
#endif
Create(data, w, h, bpp);
#ifdef AMJU_USE_SDL_IMAGE
SDL_FreeSurface(surf);
#else
delete [] data;
#endif
#ifdef _DEBUG
m_name = StripPath(filename);
#endif
return true;
}
Resource* BmpALoader(const std::string& resName)
{
std::string img = resName.substr(0, resName.size() - 1);
std::string alpha = GetFileNoExt(img) + "-a.bmp";
unsigned int w = 0;
unsigned int h = 0;
unsigned char* rgbdata = LoadDIBitmap(img.c_str(), &w, &h);
if (!rgbdata)
{
//? ReportError("Failed to load texture " + img);
return 0;
}
// Add space for alpha
unsigned char* withAlpha = AddAlpha(rgbdata, w, h);
Assert(withAlpha);
delete [] rgbdata;
rgbdata = 0;
// Load alpha image
unsigned int aw = 0;
unsigned int ah = 0;
unsigned char* alphadata = LoadDIBitmap(alpha.c_str(), &aw, &ah);
Assert(alphadata);
Assert(aw == w);
Assert(ah == h);
// Copy alpha image to alpha channel of RGB image
CopyAlpha(alphadata, withAlpha, w, h);
delete [] alphadata;
alphadata = 0;
Texture* pTex = new Texture;
pTex->Create(withAlpha, w, h, 4); // 4 bytes per pixel
delete [] withAlpha;
return (Resource*)pTex;
}
void initTexture(char* filename, GLuint *texture, GLenum *type)
{
BITMAPINFO *info; /* Bitmap information */
GLubyte *bits; /* Bitmap RGB pixels */
GLubyte *ptr; /* Pointer into bit buffer */
GLubyte *rgba; /* RGBA pixel buffer */
GLubyte *rgbaptr; /* Pointer into RGBA buffer */
// Load a texture object (256x256 true color)
bits = LoadDIBitmap(filename, &info);
if (bits == (GLubyte *)0)
return;
// Figure out the type of texture
if (info->bmiHeader.biHeight == 1)
*type = GL_TEXTURE_1D;
else
*type = GL_TEXTURE_2D;
// Create and bind a texture object
glGenTextures(1, texture);
glBindTexture(*type, *texture);
// Create an RGBA image
rgba = (GLubyte *)malloc(info->bmiHeader.biWidth * info->bmiHeader.biHeight * 4);
int i = info->bmiHeader.biWidth * info->bmiHeader.biHeight;
for( rgbaptr = rgba, ptr = bits; i > 0; i--, rgbaptr += 4, ptr += 3)
{
rgbaptr[0] = ptr[2]; // windows BMP = BGR
rgbaptr[1] = ptr[1];
rgbaptr[2] = ptr[0];
rgbaptr[3] = (ptr[0] + ptr[1] + ptr[2]) / 3;
}
// Set texture parameters
glTexParameteri(*type, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(*type, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(*type, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(*type, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexImage2D(*type, 0, 4, info->bmiHeader.biWidth, info->bmiHeader.biHeight,
0, GL_RGBA, GL_UNSIGNED_BYTE, rgba );
}
void Texture::initTexture(char *path) {
//ctor
//printf ("\nLoading texture..\n");
// Load a texture object (256x256 true color)
bits = LoadDIBitmap(path, &info);
if (bits == (GLubyte *)0) {
//printf ("Error loading texture!\n\n");
} else {
// Figure out the type of texture
if (info->bmiHeader.biHeight == 1) {
type = GL_TEXTURE_1D;
} else {
type = GL_TEXTURE_2D;
}
// Create and bind a texture object
glGenTextures(1, &texture);
glBindTexture(type, texture);
// Create an RGBA image
rgba = (GLubyte *)malloc(info->bmiHeader.biWidth * info->bmiHeader.biHeight * 4);
int i;
i = info->bmiHeader.biWidth * info->bmiHeader.biHeight;
for(rgbaptr = rgba, ptr = bits; i > 0; i--, rgbaptr += 4, ptr += 3)
{
rgbaptr[0] = ptr[2]; // windows BMP = BGR
rgbaptr[1] = ptr[1];
rgbaptr[2] = ptr[0];
rgbaptr[3] = (ptr[0] + ptr[1] + ptr[2]) / 3;
}
// Set texture parameters
glTexParameteri(type, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(type, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(type, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(type, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexImage2D(type, 0, 4, info->bmiHeader.biWidth, info->bmiHeader.biHeight,
0, GL_RGBA, GL_UNSIGNED_BYTE, rgba );
//printf("Textures ok.\n\n", texture);
}
}
int loadBMP(char *filename) {
GLubyte *img;
BITMAPINFO **img_info = malloc(sizeof(BITMAPINFO *));
img = LoadDIBitmap(filename, img_info);
glBindTexture(GL_TEXTURE_2D, g_store.image_store.current);
glPixelStorei(GL_UNPACK_ALIGNMENT, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glTexImage2D (GL_TEXTURE_2D, 0, GL_RGB, (**img_info).bmiHeader.biWidth, (**img_info).bmiHeader.biHeight, 0, GL_RGB, GL_UNSIGNED_BYTE, img);
return g_store.image_store.current++;
}
//************************************************************
// read a BMP file
//************************************************************
void showBmpFile(char *path){
BITMAPINFO *info=0;
GLubyte *bits = (GLubyte*)LoadDIBitmap(path,&info);
if (!bits || !info) {
return;
};
GLubyte *pxls=(GLubyte*)BitmapToPixels(info,bits,3);
int width=info->bmiHeader.biWidth;
int height=info->bmiHeader.biHeight;
if (pxls) {
writePixels(pxls, width, height);
FREE(pxls);
};
FREE(info);
FREE(bits);
}
void
OpenBitmapFile(char *filename )
/* I - Bitmap file to open */
{
char title[256], /* Title of file (no path info) */
name[256], /* Full pathname of file */
directory[256]; /* Directory of file */
OPENFILENAME ofn; /* Filename dialog structure */
void *bits; /* Bitmap pixel bits */
GLubyte *BitmapBits = NULL;
/*
* Pop up a filename dialog if we don't have a filename...
*/
if (filename == NULL ||
filename[0] == '\0')
{
/*
* Fill in the OPENFILENAME dialog info...
*/
strcpy(directory, ".");
strcpy(name, "");
strcpy(title, "");
memset(&ofn, 0, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = ViewWindow;
ofn.lpstrFilter = "Bitmaps\0*.BMP\0\0";
ofn.nFilterIndex = 1;
ofn.lpstrFile = name;
ofn.nMaxFile = sizeof(name) - 1;
ofn.lpstrFileTitle = title;
ofn.nMaxFileTitle = sizeof(title) - 1;
ofn.lpstrInitialDir = directory;
ofn.lpstrTitle = "Open Bitmap File";
ofn.Flags = OFN_HIDEREADONLY | OFN_PATHMUSTEXIST |
OFN_NONETWORKBUTTON | OFN_FILEMUSTEXIST;
if (!GetOpenFileName(&ofn))
return;
filename = name;
};
/*
* Free the old bitmap if there is one...
*/
if (BitmapInfo != NULL)
{
free(BitmapInfo);
free(BitmapBits);
BitmapInfo = NULL;
};
/*
* Load the named bitmap from disk. Display an error message if it
* doesn't load...
*/
bits = LoadDIBitmap(filename, &BitmapInfo);
bmpheight=(*BitmapInfo).bmiHeader.biHeight;
bmpwidth=(*BitmapInfo).bmiHeader.biWidth;
printf("bmp dimensions height %d width %d ",bmpheight,bmpwidth);
if (bits == NULL)
DisplayErrorMessage("Could not open bitmap file \'%s\'!", filename);
else
{
BitmapBits = ConvertRGB(BitmapInfo, bits);
bmpaddress=BitmapBits;
free(bits);
if (BitmapBits == NULL)
{
DisplayErrorMessage("Could not convert bitmap to RGB!");
free(BitmapInfo);
BitmapInfo = NULL;
};
};
}
/**
Initialize the texture
*/
void initTexture(void)
{
printf ("\nLoading texture..\n");
// Load a texture object (256x256 true color)
bits = LoadDIBitmap("..\\res\\tiledbronze.bmp", &info);
if (bits == (GLubyte *)0) {
printf ("Error loading texture!\n\n");
return;
}
// Figure out the type of texture
if (info->bmiHeader.biHeight == 1)
type = GL_TEXTURE_1D;
else
type = GL_TEXTURE_2D;
// Create and bind a texture object
glGenTextures(1, &texture);
glBindTexture(type, texture);
// Create an RGBA image
rgba = (GLubyte *)malloc(info->bmiHeader.biWidth * info->bmiHeader.biHeight * 4);
i = info->bmiHeader.biWidth * info->bmiHeader.biHeight;
for( rgbaptr = rgba, ptr = bits; i > 0; i--, rgbaptr += 4, ptr += 3)
{
rgbaptr[0] = ptr[2]; // windows BMP = BGR
rgbaptr[1] = ptr[1];
rgbaptr[2] = ptr[0];
rgbaptr[3] = (ptr[0] + ptr[1] + ptr[2]) / 3;
}
// Set texture parameters
glTexParameteri(type, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(type, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(type, GL_TEXTURE_WRAP_S, GL_REPEAT); // why not GL_REPEAT?
glTexParameteri(type, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexImage2D(type, 0, 4, info->bmiHeader.biWidth, info->bmiHeader.biHeight,
0, GL_RGBA, GL_UNSIGNED_BYTE, rgba );
printf("Textura %d\n", texture);
// Now loads the map:
printf ("\nLoading map..\n");
// Load a texture object (256x256 true color)
mapbits = LoadDIBitmap("..\\res\\modelmap.bmp", &mapinfo);
if (mapbits == (GLubyte *)0) {
printf ("Error loading map!\n\n");
return;
}
int x, z;
//printf("Map Height = %d\n", mapinfo->bmiHeader.biHeight);
int carFound = 0;
for (x = 0; x < mapinfo->bmiHeader.biWidth; x++) {
for (z = 0; z < mapinfo->bmiHeader.biHeight; z++) {
if (((mapbits + x * z)[0] >= (GLubyte)250) && ((mapbits + x * z)[2] == ((GLubyte)000)) && ((mapbits + x * z)[1] == ((GLubyte)000))) { // Blue car
printf("found blue car at (%d, %d)\n", x, z);
blueCar_x = (float)x / (float)mapinfo->bmiHeader.biWidth;
blueCar_z = (float)z / (float)mapinfo->bmiHeader.biHeight;
carFound++;
}
if (((mapbits + x * z)[2] >= ((GLubyte)1)) && ((mapbits + x * z)[0] == ((GLubyte)000)) && ((mapbits + x * z)[1] == ((GLubyte)000))) { // Red car
printf("found red car at (%d, %d)\n", x, z);
redCar_x = (float)x / (float)mapinfo->bmiHeader.biWidth;
redCar_z = (float)z / (float)mapinfo->bmiHeader.biHeight;
carFound++;
}
}
}
if (carFound == 2) //found both cars
foundCars = true;
else
{
foundCars = false;
printf("Error loading map: car(s) not found\n");
}
printf("Textures ok.\n\n", texture);
}
void DIBitmap::loadBitmap(const char *fileName)
{
_bitmap = LoadDIBitmap(fileName,&_bitMapInfo);
}
