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freetype2
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Removed unnecessary loops and variables

This commit is contained in:
Kushal K S V S 2017-06-15 14:34:10 +05:30
parent 797e74abd6
commit ef6231e5bf
3 changed files with 38 additions and 42 deletions
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10
tests/make_bitmap/README
View File

@ -4,4 +4,12 @@ gcc example1.c ksvsk.c murmur3.c -Wall -I /usr/local/include/freetype2/ -lfreety
./example1 <font_file> <pt_size> <character>
gcc example2.c ksvsk.c murmur3.c -Wall -I /usr/local/include/freetype2/ -lfreetype -o example2
./example2 <font_file> <pt_size>
./example2 <font_file> <pt_size>
NOTE
-> DONOT use Get_Padding render MONO / GRAYSCALE bitmaps.
Use FT_Bitmap_Convert to make the width of bitmap a multiple of 4 bytes and then write it to file.

68
tests/make_bitmap/bitmap.c
View File

@ -88,7 +88,7 @@ void Write_Bitmap_Header (FT_Bitmap * bitmap ) {
header->info_header.info_header_size = sizeof(BMP_INFO_HEADER);
header->info_header.width = image_width ;
header->info_header.height = image_rows;
header->info_header.height = - image_rows;
header->info_header.planes = PLANES;
header->info_header.bits_per_pixel = Get_Bits_Per_Pixel( bitmap->pixel_mode );
header->info_header.compression = COMPRESSION;
@ -106,23 +106,21 @@ void Write_Bitmap_Header (FT_Bitmap * bitmap ) {
void Write_Bitmap_Data_LCD_RGB( FT_Bitmap * bitmap ){
char value;
int i,j,k;
FILE *fp = fopen("test.bmp","a");
for (int i = bitmap->rows - 1; i >= 0 ; --i)
for (i = 0; i < bitmap->rows ; ++i)
{
for (int j = 2; j < bitmap->width; j = j+3)
for ( j = 2; j < bitmap->width; j = j+3)
{
value = 0xff - bitmap->buffer[( i * bitmap->pitch) + j];
fwrite (&value, 1, 1,fp);
value = 0xff - bitmap->buffer[( i * bitmap->pitch) + j - 1];
fwrite (&value, 1, 1,fp);
value = 0xff - bitmap->buffer[( i * bitmap->pitch) + j - 2];
fwrite (&value, 1, 1,fp);
for ( k = 0; k < 3; ++k)
{
value = 0xff - bitmap->buffer[( i * bitmap->pitch) + j - k];
fwrite (&value, 1, 1,fp);
}
}
for (int k = 0; k < Get_Padding(bitmap); ++k)
for ( k = 0; k < Get_Padding(bitmap); ++k)
{
value = 0xff;
fwrite (&value, 1, 1,fp);
@ -135,23 +133,18 @@ void Write_Bitmap_Data_LCD_RGB( FT_Bitmap * bitmap ){
void Write_Bitmap_Data_LCD_BGR( FT_Bitmap * bitmap ){
char value;
int i,j,k;
FILE *fp = fopen("test.bmp","a");
for (int i = bitmap->rows - 1; i >= 0 ; --i)
for ( i = 0; i < bitmap->rows ; ++i)
{
for (int j = 0; j < bitmap->width; j = j+3)
for ( j = 0; j < bitmap->width; j++)
{
value = 0xff - bitmap->buffer[( i * bitmap->pitch) + j];
fwrite (&value, 1, 1,fp);
value = 0xff - bitmap->buffer[( i * bitmap->pitch) + j + 1];
fwrite (&value, 1, 1,fp);
value = 0xff - bitmap->buffer[( i * bitmap->pitch) + j + 2];
fwrite (&value, 1, 1,fp);
}
for (int k = 0; k < Get_Padding(bitmap); ++k)
for ( k = 0; k < Get_Padding(bitmap); ++k)
{
value = 0xff;
fwrite (&value, 1, 1,fp);
@ -213,7 +206,7 @@ void Write_Bitmap_Data_LCD_V_RGB (FT_Bitmap * bitmap) {
value = 0xff;
fwrite (&value, 1, 1,fp);
}
step = step - 3;
step = step - 3;
}
fclose(fp);
@ -223,7 +216,7 @@ void Write_Bitmap_Data_MONO (FT_Bitmap * bitmap) {
FILE *fp = fopen("test.bmp","a");
int i,j;
int i;
unsigned char value;
for ( i = 0; i < 256; ++i)
{
@ -235,17 +228,15 @@ void Write_Bitmap_Data_MONO (FT_Bitmap * bitmap) {
fwrite (&value,1,1,fp);
}
for ( i = bitmap->rows - 1; i >= 0 ; --i)
for (int i = 0; i < bitmap->pitch * bitmap->rows; ++i)
{
for ( j = 0; j < bitmap->pitch; ++j)
{
if ( bitmap->buffer[( i * bitmap->pitch) + j] != 0x00 ){
value = 0x00; // remember taking reverse
fwrite (&value, 1, 1,fp);
}else{
value = 0xff;
fwrite (&value, 1, 1,fp);
}
if ( bitmap->buffer[i] != 0x00 ){
value = 0x00; // remember taking reverse
fwrite (&value, 1, 1,fp);
}else{
value = 0xff;
fwrite (&value, 1, 1,fp);
}
}
@ -255,7 +246,7 @@ void Write_Bitmap_Data_MONO (FT_Bitmap * bitmap) {
void Write_Bitmap_Data_GRAY(FT_Bitmap * bitmap) {
FILE *fp = fopen("test.bmp","a");
int i,j;
int i;
unsigned char value;
for ( i = 0; i < 256; ++i)
@ -268,13 +259,10 @@ void Write_Bitmap_Data_GRAY(FT_Bitmap * bitmap) {
fwrite (&value,1,1,fp);
}
for ( j = bitmap->rows - 1; j >= 0; --j)
for (int i = 0; i < bitmap->pitch * bitmap->rows; ++i)
{
for ( i = 0; i < bitmap->pitch; ++i)
{
value = 255 - bitmap->buffer[j * bitmap->pitch + i];
fwrite(&value,1,1,fp);
}
value = 255 - bitmap->buffer[i];
fwrite(&value,1,1,fp);
}
fclose(fp);

2
tests/make_bitmap/bitmap.h
View File

@ -33,7 +33,7 @@ typedef struct{ // Bitmap INFO Header
FT_UInt32 info_header_size;
FT_UInt32 width;
FT_UInt32 height;
FT_Int height;
FT_UInt16 planes;
FT_UInt16 bits_per_pixel;
FT_UInt32 compression;