/* Creates a negative image of the input bitmap file */
int main( int argc, char* argv[] )
{
UCHAR r, g, b;
UINT width, height;
UINT x, y;
BMP* bmp;
/* Check arguments */
if ( argc != 3 )
{
fprintf( stderr, "Usage: %s <input file> <output file>\n", argv[ 0 ] );
return 0;
}
/* Read an image file */
bmp = BMP_ReadFile( argv[ 1 ] );
BMP_CHECK_ERROR( stdout, -1 );
/* Get image's dimensions */
width = BMP_GetWidth( bmp );
height = BMP_GetHeight( bmp );
/* Iterate through all the image's pixels */
for ( x = 0 ; x < width ; ++x )
{
for ( y = 0 ; y < height ; ++y )
{
/* Get pixel's RGB values */
BMP_GetPixelRGB( bmp, x, y, &r, &g, &b );
/* Invert RGB values */
BMP_SetPixelRGB( bmp, x, y, 255 - r, 255 - g, 255 - b );
}
}
/* Save result */
BMP_WriteFile( bmp, argv[ 2 ] );
BMP_CHECK_ERROR( stdout, -2 );
/* Free all memory allocated for the image */
BMP_Free( bmp );
return 0;
}
GLFont *glFontLoad(char *fontfile) {
GLFont *font = NULL;
BMPFile *bmp = NULL;
bmp = BMP_Load(fontfile);
if (!bmp) return NULL;
font = calloc(1, sizeof(GLFont));
if (!font) {
BMP_Destroy(&bmp);
return NULL;
}
font->textureID = makeTexture(BMP_GetWidth(bmp), BMP_GetHeight(bmp), BMP_GetPixelArray(bmp));
BMP_Destroy(&bmp);
font->base = makeFontList(font->textureID);
return font;
}
// Load a texture and store its handle in "handle"
bool terrain::load_texture(const char *filename, GLuint *handle)
{
BMP *bitmap;
// Load the texture by reading a bmp file
bitmap = BMP_ReadFile(filename);
// Return false and show an error message if the file
// could not be loaded
if (BMP_GetError() != BMP_OK) {
std::cout<<BMP_GetErrorDescription()<<std::endl;
return false;
}
// Get a pointer to the bitmap data
unsigned char* data = BMP_GetImageData(bitmap);
// Generate one texture and store its ID in "handle"
glGenTextures(1, handle);
// Bind the texture
glBindTexture(GL_TEXTURE_2D, *handle);
// Enable linear blending between different mipmapping levels
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
// Clamp the texture at the borders
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
// Transfer the image data to the graphics card.
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, BMP_GetWidth(bitmap), BMP_GetHeight(bitmap), 0, GL_RGB, GL_UNSIGNED_BYTE, data);
// Not needed anymore
free(data);
BMP_Free(bitmap);
// Unbind texture
glBindTexture(GL_TEXTURE_2D, 0);
return true;
}
// Return the width of the height map
int terrain::get_heightmap_width() const
{
return BMP_GetWidth(heightmap);
}
/* Creates a blur image of the input bitmap file */
int main( int argc, char* argv[] )
{
UCHAR r, g, b;
UINT width, height;
UINT x, y;
BMP* bmp;
BMP* bmp_new;
int size;
int count;
int i, k, start_i, stop_i, start_k, stop_k;
int r_sum, g_sum, b_sum;
UCHAR r_new, g_new, b_new;
/* Check arguments */
if ( argc != 4 )
{
fprintf( stderr, "Usage: %s <input file> <output file> <blur box size>\n", argv[ 0 ] );
return 0;
}
size = atoi(argv[3]);
if (size <= 0){
printf("Please enter a positive integer as the blur box size argument.\n");
return 0;
}
/* Read an image file */
bmp = BMP_ReadFile( argv[ 1 ] );
BMP_CHECK_ERROR( stdout, -1 );
bmp_new = BMP_ReadFile( argv[ 1 ] );
BMP_CHECK_ERROR( stdout, -1 );
/* Get image's dimensions */
width = BMP_GetWidth( bmp );
height = BMP_GetHeight( bmp );
/* Iterate through all the image's pixels */
for ( x = 0 ; x < width ; ++x )
{
for ( y = 0 ; y < height ; ++y )
{
r_sum = 0;
g_sum = 0;
b_sum = 0;
count = 0;
/* Get pixel's RGB values */
start_i = x - size;
stop_i = x + size;
start_k = y - size;
stop_k = y + size;
for (i = start_i; i <= stop_i; i++){
for (k = start_k; k <= stop_k; k++){
if ((i >= 0) && (i < width) && (k >= 0) && (k < height)){
BMP_GetPixelRGB(bmp, i, k, &r, &g, &b);
count++;
r_sum = r_sum + r;
g_sum = g_sum + g;
b_sum = b_sum + b;
}
}
}
r_new = r_sum / count;
g_new = g_sum / count;
b_new = b_sum / count;
/* Invert RGB values */
BMP_SetPixelRGB( bmp_new, x, y, r_new, g_new, b_new );
}
}
/* Save result */
BMP_WriteFile( bmp_new, argv[ 2 ] );
BMP_CHECK_ERROR( stdout, -2 );
/* Free all memory allocated for the image */
BMP_Free( bmp );
BMP_Free( bmp_new );
return 0;
}
int main(int argc, char **argv)
{
BMP* bmp;
unsigned int y,w,h,Nrows,i,j,k,Nchars, charnum,char_w, char_sw, char_bytes,font_size,font_space,firstbyte;
unsigned char buff[128]; //buffer to hold a row of image data
unsigned char r,g,b;
if(argc==5)
{
bmp = BMP_ReadFile(argv[4]);
BMP_CHECK_ERROR(stderr, -1);
/* get the height and width of the image. */
w = BMP_GetWidth(bmp);
h = BMP_GetHeight(bmp);
//get font size data
char_w = atoi(argv[1]);
char_sw = atoi(argv[2]);
font_space = atoi(argv[3]);
//verify font parameters
//is size of character valid?
//is number of bytes/character <=128?
//check to make sure the character is not larger than the display
if ( (char_w >128) || (h>64) )
{
fprintf(stderr,"character is too large. max size is 128x64\n");
return -1;
}
//calculate the number of rows necessary(each row is 8 pixels tall)
Nrows = h/8; //number of whole rows necessary
if (h%8!=0)
Nrows++; //a partial row counts too
//calculate the number of characters in the image
Nchars = (w/char_w);
//calculate # of bytes per character
char_bytes = Nrows*char_w;
//calculate total number of bytes for font
font_size = char_bytes*Nchars+4; //char_bytes repeated Nchars times +4 for font width,height,short width,space
//build font
printf("const unsigned int Font[%d] = {0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x,\n",font_size,char_w,h,char_sw,font_space); //print the array definition
//now build image data
firstbyte=0; //to get the right number of comma's in the array initialization
for(charnum=0;charnum<Nchars;charnum++) //loop for each character in the image
{
for (i=0;i<Nrows;i++) //loop for each row
{
memset(buff,0x00,128); //clear all bytes in buffer for each new row
for (j=0;j<char_w;j++) //loop for each byte in row
{
for(k=0;k<8;k++) //loop for each pixel in byte
{
//calculate the y coordinate of this bit(x coordinate is j+charnum*char_w)
y = i*8+k;
BMP_GetPixelRGB(bmp,j+charnum*char_w,y,&r,&g,&b); //get pixel
if ((r+g+b) == 0) //check if pixel is set
{
buff[j] |= ((unsigned char)1 << k); //set the pixel
}
}
}
//output row of data
for (y=0;y<char_w;y++)
{
if (firstbyte==0)
printf("0x%.2x",buff[y]); //write w bytes(1 for each x coordinate)
else
printf(", 0x%.2x",buff[y]); //write w bytes(1 for each x coordinate)
firstbyte=1;
}
}
printf("\n"); //print a newline to make the file pretty
}
printf("};\n"); //finish array definition
}
else
{
printf("Usage: bmp2header_font [character width in pixels] [short character width in pixels] [spacing in pixels] [infile.bmp] > header.h\n");
printf("Character width defines how the input image is divided.\nSpacing is the number of pixels between characters when printed.");
printf("Converts a 24bbp bitmap image with characters in the x direction into a header file array definition\n");
printf("with the array name of \"Font\"\n");
printf("any pixel in the source identically equal to 0 is considered set in the font.\n");
}
return 0;
}
int separaletras (char * entrada)
{
UCHAR r, g, b;
UINT width, height;
UINT x, y;
BMP* bmp;
BMP* bmp_BW;
int conta = 0;
bmp = BMP_ReadFile( entrada );
bmp_BW = BMP_ReadFile( entrada );
BMP_CHECK_ERROR(stdout, -1);
width = BMP_GetWidth( bmp );
height = BMP_GetHeight( bmp );
short Black_White[height][width];
int colunaDaVez[height - 2*OFFSET_Y];
int Coluna_Inicio = 0;
int Coluna_Final = 0;
int Linha_Inicio = 0;
int Linha_Final = 0;
char nomeArquivo[20];
for( x = 0 ; x < width ; ++x)
{
for( y = 0 ; y < height ; ++y)
{
BMP_GetPixelRGB( bmp, x, y, &r, &g, &b );
if((r+g+b) < 384 )
{
Black_White[y][x] = 0;
BMP_SetPixelRGB(bmp_BW, x, y, 0, 0, 0);
}
else
{
Black_White[y][x] = 1;
BMP_SetPixelRGB(bmp_BW, x, y, 255, 255, 255);
}
}
}
for( x = 0 ; x < width ; x++)
{
for( y = 0 ; y < height ; y++ )
{
if(Black_White[y][x] != Black_White[y][x+1])
{
BMP_SetPixelRGB(bmp_BW, x, y, 0,0,0);
}
else
{
BMP_SetPixelRGB(bmp_BW, x, y, 255, 255, 255);
}
if(Black_White[y][x] != Black_White[y+1][x])
{
BMP_SetPixelRGB(bmp_BW, x, y, 0, 0, 0);
}
}
}
int c;
int numeroArquivo = 0;
int k,h;
for( x = OFFSET_X ; x < width-OFFSET_X ; x++)
{
for(y = OFFSET_Y ; y < height-OFFSET_Y ; y++)
{
BMP_GetPixelRGB(bmp_BW, x, y, &r, &g, &b);
if(r+g+b > 0)
{
colunaDaVez[y-OFFSET_Y] = 0;
}
else
{
colunaDaVez[y-OFFSET_Y] = 1;
}
}
c = verificaColuna_BW(colunaDaVez, height-2*OFFSET_Y);
if(c == 0 && Coluna_Inicio != 0)
{
sprintf(nomeArquivo, "OUT%d.bmp",numeroArquivo);
Coluna_Final = x;
for(k = OFFSET_Y; k < height-OFFSET_Y; k++)
{
for(h = Coluna_Inicio ; h < Coluna_Final ; h++)
{
BMP_GetPixelRGB(bmp_BW, h, k, &r, &g, &b);
if(r+g+b > 0)
{
colunaDaVez[h - Coluna_Inicio] = 0;
}
else
{
colunaDaVez[h - Coluna_Inicio] = 1;
}
}
c = verificaColuna_BW(colunaDaVez, Coluna_Final-Coluna_Inicio);
if(c == 0 && Linha_Inicio != 0)
{
if(k-Linha_Inicio > 10)
{
Linha_Final = k;
BMP_Cut_and_Export(bmp, Coluna_Inicio, Coluna_Final, Linha_Final, Linha_Inicio, nomeArquivo);
conta++;
Coluna_Final = 0;
Coluna_Inicio = 0;
Linha_Inicio = 0;
Linha_Final = 0;
numeroArquivo++;
k = h = 200000;
break;
}
else
{
Linha_Inicio = k;
}
}
if(c == 1 && Linha_Inicio == 0)
{
Linha_Inicio = k;
}
}
}
if(c == 1 && Coluna_Inicio == 0)
{
Coluna_Inicio = x;
}
}
BMP_CHECK_ERROR( stdout, -1);
BMP_Free(bmp);
BMP_Free(bmp_BW);
return conta;
}
/* Creates a negative image of the input bitmap file */
int main( int argc, char* argv[] )
{
UCHAR r, g, b;
int pos = 0;
int i = 0;
int startPos = 0;
int get_x = 0;
int get_y = 0;
int thread_num = 0;
/* Check arguments */
if ( argc != 5 )
{
fprintf( stderr, "Usage: %s <input file> <output file>\n", argv[ 0 ] );
return 0;
}
/* Read an image file */
bmp = BMP_ReadFile( argv[ 1 ] );
BMP_CHECK_ERROR( stdout, -1 );
/* Get image's dimensions */
width = BMP_GetWidth( bmp );
height = BMP_GetHeight( bmp );
size = width*height;
box_size = atoi(argv[3]);
thread_num = atoi(argv[4]);
if (box_size <= 0){
printf("sorry, box size cannot be negative or 0\n");
return 0;
}
if (thread_num <= 0){
printf("sorry, thread number cannot be negative or 0\n");
return 0;
}
interval = size/(thread_num-1);
// printf("%d\n", size);
pthread_t thread[thread_num];
int inter[thread_num];
/* Iterate through all the image's pixels */
for ( get_x = 0 ; get_x < width ; get_x++ )
{
for ( get_y = 0 ; get_y < height ; get_y++ )
{
/* Get pixel's RGB values */
BMP_GetPixelRGB( bmp, get_x, get_y, &r, &g, &b );
pos = get_x + get_y*width;
pixelsR[pos] = r;
pixelsG[pos] = g;
pixelsB[pos] = b;
// BMP_SetPixelRGB( bmp, x, y, 255 - r, 255 - g, 255 - b );
}
}
while (i < thread_num){
inter[i] = startPos;
i++;
startPos = startPos + interval;
}
i = 0;
while (i < thread_num){
pthread_create(&thread[i], NULL, &blur, &inter[i]);
i++;
}
i = 0;
while (i < thread_num){
pthread_join(thread[i], NULL);
i++;
}
/* Save result */
BMP_WriteFile( bmp, argv[ 2 ] );
BMP_CHECK_ERROR( stdout, -2 );
/* Free all memory allocated for the image */
BMP_Free( bmp );
return 0;
}
int main() {
static const char* cubeNames[CC_FACE_NUM] = {
"TOP.bmp",
"LEFT.bmp",
"FRONT.bmp",
"RIGHT.bmp",
"BACK.bmp",
"DOWN.bmp"
};
struct cc_context ctx;
unsigned int i = 0;
unsigned int j = 0;
unsigned char rr;
unsigned char gg;
unsigned char bb;
BMP *bmpCube[CC_FACE_NUM];
unsigned int width = 0;
unsigned int height = 0;
unsigned short depth = 0;
BMP *output = NULL;
unsigned int pano_width = 0;
unsigned int pano_height = 0;
const struct cc_coord* coord = NULL;
// Read the 6 input images
for (i = 0; i < CC_FACE_NUM; ++i) {
bmpCube[i] = BMP_ReadFile(cubeNames[i]);
if (BMP_GetError() != BMP_OK) {
return 1;
}
}
// Get image's dimensions
width = (unsigned int)BMP_GetWidth( bmpCube[0]);
height = (unsigned int)BMP_GetHeight(bmpCube[0]);
depth = BMP_GetDepth( bmpCube[0]);
// The input images must be square
if (width != height) {
return 1;
}
/*
Initialise the algorithm:
the width of each input is 640 pixel,
the vertical view portion is PI (180 degrees),
the horizontal view portion is 2*PI (360 degress).
In this case, the output image size will be calculated accordingly.
There is another more detailed init function you can play with.
*/
cc_init(&ctx, width, M_PI*2.0, M_PI);
// Generate the mapping from panorama to cubic
cc_gen_map(&ctx);
// Access the dimension of the panorama image
pano_width = ctx.px_pano_h;
pano_height = ctx.px_pano_v;
// Create the panorama output image
output = BMP_Create(pano_width, pano_height, depth);
// Map the pixels from the panorama back to the source image
for (i = 0; i < pano_width; ++i) {
for (j = 0; j < pano_height; ++j) {
// Get the corresponding position of (i, j)
coord = cc_get_coord(&ctx, i, j);
// Access the pixel
BMP_GetPixelRGB(bmpCube[coord->face], (unsigned long)coord->x, (unsigned long)coord->y, &rr, &gg, &bb);
// Write the pixel to the panorama
BMP_SetPixelRGB(output, i, j, rr, gg, bb);
}
}
// Write the output file
BMP_WriteFile(output, "PANO.bmp");
// Release memory
BMP_Free(output);
for (i = 0; i < CC_FACE_NUM; ++i) {
BMP_Free(bmpCube[i]);
}
cc_close(&ctx);
return 0;
}
