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[freetype2] kushal_glyph_test e5bdfde: Merge branch 'ksvsk_test' of into
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From: |
Kushal K S V S |
|
Subject: |
[freetype2] kushal_glyph_test e5bdfde: Merge branch 'ksvsk_test' of into kushal_glyph_test |
|
Date: |
Thu, 6 Jul 2017 17:09:23 -0400 (EDT) |
branch: kushal_glyph_test
commit e5bdfde6dfe101c9ce2871b151f12d223f57afa2
Merge: cf8d9b4 4f5f083
Author: Kushal K S V S <address@hidden>
Commit: Kushal K S V S <address@hidden>
Merge branch 'ksvsk_test' of into kushal_glyph_test
---
tests/make_bitmap/README | 18 +++
tests/make_bitmap/bitmap.c | 269 ++++++++++++++++++++++++++++++++++++
tests/make_bitmap/bitmap.h | 85 ++++++++++++
tests/make_bitmap/example1.c | 98 +++++++++++++
tests/make_bitmap/example2.c | 93 +++++++++++++
tests/make_bitmap/murmur3.c | 312 ++++++++++++++++++++++++++++++++++++++++++
tests/make_bitmap/murmur3.h | 24 ++++
tests/make_bitmap/runme.sh | 4 +
tests/make_png/README | 37 +++++
tests/make_png/bitmap.c | 282 ++++++++++++++++++++++++++++++++++++++
tests/make_png/bitmap.h | 67 +++++++++
tests/make_png/hash_to_file.c | 151 ++++++++++++++++++++
tests/make_png/make_png.c | 178 ++++++++++++++++++++++++
tests/make_png/makefile | 28 ++++
tests/make_png/murmur3.c | 312 ++++++++++++++++++++++++++++++++++++++++++
tests/make_png/murmur3.h | 24 ++++
16 files changed, 1982 insertions(+)
diff --git a/tests/make_bitmap/README b/tests/make_bitmap/README
new file mode 100644
index 0000000..98208b5
--- /dev/null
+++ b/tests/make_bitmap/README
@@ -0,0 +1,18 @@
+Use the "new" folder.
+
+
+To compile and execute
+
+gcc example1.c ksvsk.c murmur3.c -Wall -I /usr/local/include/freetype2/
-lfreetype -o example1
+./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>
+
+
+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.
+
+
diff --git a/tests/make_bitmap/bitmap.c b/tests/make_bitmap/bitmap.c
new file mode 100644
index 0000000..4217c3c
--- /dev/null
+++ b/tests/make_bitmap/bitmap.c
@@ -0,0 +1,269 @@
+#include "bitmap.h"
+
+HASH_128 * Generate_Hash_x64_128(FT_Bitmap * bitmap, HASH_128 * murmur)
+{
+ int seed = 99; // Dont change
+
+ MurmurHash3_x64_128(bitmap->buffer, (bitmap->pitch * bitmap->rows), seed,
murmur->hash);
+
+ return murmur;
+}
+
+HASH_128 * Generate_Hash_x86_128(FT_Bitmap * bitmap, HASH_128 * murmur)
+{
+ int seed = 99; // Dont change
+
+ MurmurHash3_x86_128(bitmap->buffer, (bitmap->pitch * bitmap->rows), seed,
murmur->hash);
+
+ return murmur;
+}
+
+HASH_32 * Generate_Hash_x86_32(FT_Bitmap * bitmap, HASH_32 * murmur)
+{
+ int seed = 99; // Dont change
+
+ MurmurHash3_x86_32(bitmap->buffer, (bitmap->pitch * bitmap->rows), seed,
murmur->hash);
+
+ return murmur;
+}
+
+int Get_Padding( FT_Bitmap* bitmap ){
+
+ int rem;
+ if (bitmap->pixel_mode == 6)
+ {
+ rem = ( 3 * bitmap->width ) % 4;
+ }else{
+ rem = ( bitmap->width ) % 4;
+ }
+
+ if (!rem )
+ {
+ return rem;
+ }
+ return (4 - rem);
+}
+
+int Get_Bits_Per_Pixel ( unsigned char PIXEL_MODE) {
+ if (PIXEL_MODE < 5)
+ {
+ return BITS_PER_PIXEL_GRAY;
+ }else{
+ return BITS_PER_PIXEL_LCD;
+ }
+}
+
+void Write_Bitmap_Header (FT_Bitmap * bitmap ) {
+
+ FILE *fp = fopen("test.bmp","w"); // Bitmap File
+ HEADER *header = ( HEADER* ) calloc( 1 , sizeof( HEADER ));
+
+ unsigned char pixel_mode = ( bitmap->pixel_mode );
+ FT_UInt image_width;
+ FT_UInt image_rows;
+ FT_UInt color_table_size = 0;
+
+ switch(pixel_mode){
+
+ case 5 : image_width = bitmap->width / 3; // LCD
+ image_rows = bitmap->rows;
+ break;
+
+ case 6 : image_width = bitmap->width; // LCD_V
+ image_rows = bitmap->rows / 3;
+ break;
+
+ default : image_width = bitmap->width; // MONO
and GRAY
+ image_rows = bitmap->rows;
+ color_table_size = 4* 256;
+ break;
+ }
+
+ FT_Int image_size;
+ image_size = (image_rows * image_width );
+
+ header->file_header.type = 0x4D42;
+ header->file_header.file_size = sizeof(HEADER) +
color_table_size + image_size;
+ header->file_header.file_offset = sizeof(HEADER) +
color_table_size;
+
+ 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.planes = PLANES;
+ header->info_header.bits_per_pixel = Get_Bits_Per_Pixel(
bitmap->pixel_mode );
+ header->info_header.compression = COMPRESSION;
+ header->info_header.image_size = image_size;
+ header->info_header.y_pixels_per_meter = Y_PIXELS_PER_METER ;
+ header->info_header.x_pixels_per_meter = X_PIXELS_PER_METER ;
+ header->info_header.used_colors = USED_COLORS;
+ header->info_header.important_colors = IMPORTANT_COLORS;
+
+ fwrite (header, 1, sizeof(HEADER),fp);
+ free(header);
+ fclose(fp);
+}
+
+void Write_Bitmap_Data_LCD_RGB( FT_Bitmap * bitmap ){
+
+ char value;
+ int i,j,k;
+
+ FILE *fp = fopen("test.bmp","a");
+
+ for (i = 0; i < bitmap->rows ; ++i)
+ {
+ for ( j = 2; j < bitmap->width; j = j+3)
+ {
+ for ( k = 0; k < 3; ++k)
+ {
+ value = 0xff - bitmap->buffer[( i * bitmap->pitch) + j
- k];
+ fwrite (&value, 1, 1,fp);
+ }
+ }
+ for ( k = 0; k < Get_Padding(bitmap); ++k)
+ {
+ value = 0xff;
+ fwrite (&value, 1, 1,fp);
+ }
+ }
+
+ fclose(fp);
+}
+
+void Write_Bitmap_Data_LCD_BGR( FT_Bitmap * bitmap ){
+
+ char value;
+ int i,j,k;
+
+ FILE *fp = fopen("test.bmp","a");
+
+ for ( i = 0; i < bitmap->rows ; ++i)
+ {
+ for ( j = 0; j < bitmap->width; j++)
+ {
+ value = 0xff - bitmap->buffer[( i * bitmap->pitch) + j];
+ fwrite (&value, 1, 1,fp);
+ }
+ for ( k = 0; k < Get_Padding(bitmap); ++k)
+ {
+ value = 0xff;
+ fwrite (&value, 1, 1,fp);
+ }
+ }
+
+ fclose(fp);
+}
+
+void Write_Bitmap_Data_LCD_V_BGR (FT_Bitmap * bitmap) {
+
+ FILE *fp = fopen("test.bmp","a");
+
+ int i,j,k,step;
+ char value;
+ step = 0;
+
+ while ( step < bitmap->rows ){
+
+ for (i = 0; i < bitmap->width; i++)
+ {
+ for (j = step ; j < step + 3; ++j)
+ {
+ value = 0xff - bitmap->buffer[(j * bitmap->pitch) + i];
+ fwrite (&value, 1, 1,fp);
+ }
+ }
+ for (k = 0; k < Get_Padding(bitmap); ++k)
+ {
+ value = 0xff;
+ fwrite (&value, 1, 1,fp);
+ }
+ step = step + 3; // Jumping 3 rows up
+ }
+
+ fclose(fp);
+}
+
+void Write_Bitmap_Data_LCD_V_RGB (FT_Bitmap * bitmap) {
+
+ FILE *fp = fopen("test.bmp","a");
+
+ int i,j,k,step;
+ char value;
+ step = 0;
+
+ while ( step < bitmap->rows ){
+
+ for (i = 0; i < bitmap->width; i++)
+ {
+ for (j = step + 2 ; j >= step; --j)
+ {
+ value = 0xff - bitmap->buffer[(j * bitmap->pitch) + i];
+ fwrite (&value, 1, 1,fp);
+ }
+ }
+ for (k = 0; k < Get_Padding(bitmap); ++k)
+ {
+ value = 0xff;
+ fwrite (&value, 1, 1,fp);
+ }
+ step = step + 3; // Jumping 3 rows up
+ }
+
+ fclose(fp);
+}
+
+void Write_Bitmap_Data_MONO (FT_Bitmap * bitmap) {
+
+ FILE *fp = fopen("test.bmp","a");
+
+ int i;
+ unsigned char value;
+ for ( i = 0; i < 256; ++i)
+ {
+ value = i;
+ fwrite (&value,1,1,fp);
+ fwrite (&value,1,1,fp);
+ fwrite (&value,1,1,fp);
+ value = 0;
+ fwrite (&value,1,1,fp);
+ }
+
+
+ for (int i = 0; i < bitmap->pitch * bitmap->rows; ++i)
+ {
+ if ( bitmap->buffer[i] != 0x00 ){
+ value = 0x00; // remember taking reverse
+ fwrite (&value, 1, 1,fp);
+ }else{
+ value = 0xff;
+ fwrite (&value, 1, 1,fp);
+ }
+ }
+
+ fclose(fp);
+}
+
+void Write_Bitmap_Data_GRAY(FT_Bitmap * bitmap) {
+
+ FILE *fp = fopen("test.bmp","a");
+ int i;
+
+ unsigned char value;
+ for ( i = 0; i < 256; ++i)
+ {
+ value = i;
+ fwrite (&value,1,1,fp);
+ fwrite (&value,1,1,fp);
+ fwrite (&value,1,1,fp);
+ value = 0;
+ fwrite (&value,1,1,fp);
+ }
+
+ for (int i = 0; i < bitmap->pitch * bitmap->rows; ++i)
+ {
+ value = 255 - bitmap->buffer[i];
+ fwrite(&value,1,1,fp);
+ }
+
+ fclose(fp);
+}
\ No newline at end of file
diff --git a/tests/make_bitmap/bitmap.h b/tests/make_bitmap/bitmap.h
new file mode 100644
index 0000000..f2e309b
--- /dev/null
+++ b/tests/make_bitmap/bitmap.h
@@ -0,0 +1,85 @@
+#include <stdio.h>
+#include <ft2build.h>
+#include "murmur3.h" // MurmurHash3_x64_128 header file
+
+#include FT_FREETYPE_H
+#include FT_MODULE_H
+#include FT_LCD_FILTER_H
+#include FT_BITMAP_H
+
+#define BITS_PER_PIXEL_MONO 1 // Constants for the Bitmap Header
+#define BITS_PER_PIXEL_GRAY 8
+#define BITS_PER_PIXEL_LCD 24
+
+#define PLANES 1 // Constants for the Bitmap Header
+#define COMPRESSION 0
+#define X_PIXELS_PER_METER 0
+#define Y_PIXELS_PER_METER 0
+#define USED_COLORS 0
+#define IMPORTANT_COLORS 0
+//-------------------------------------------------------------------------------
+#pragma pack(push,1)
+
+typedef struct{ // Bitmap FILE Header
+
+ FT_UInt16 type;
+ FT_UInt32 file_size;
+ FT_UInt32 reserved;
+ FT_UInt32 file_offset;
+
+} BMP_FILE_HEADER;
+
+typedef struct{ // Bitmap INFO Header
+
+ FT_UInt32 info_header_size;
+ FT_UInt32 width;
+ FT_Int height;
+ FT_UInt16 planes;
+ FT_UInt16 bits_per_pixel;
+ FT_UInt32 compression;
+ FT_UInt32 image_size;
+ FT_UInt32 y_pixels_per_meter;
+ FT_UInt32 x_pixels_per_meter;
+ FT_UInt32 used_colors;
+ FT_UInt32 important_colors;
+
+} BMP_INFO_HEADER;
+
+typedef struct { // Bitmap Header
+
+ BMP_FILE_HEADER file_header;
+ BMP_INFO_HEADER info_header;
+
+} HEADER;
+
+//------------------------------------------------------------------------------
+typedef struct { // To store 32bit Hash
+ FT_UInt32 hash[1];
+}HASH_32;
+
+typedef struct { // To store 128bit Hash
+ FT_UInt32 hash[4];
+}HASH_128;
+
+#pragma pack(pop)
+
+//-------------------------------------------------------------------------------
+
+HASH_32 * Generate_Hash_x86_32(FT_Bitmap * bitmap, HASH_32 * murmur);
+HASH_128 * Generate_Hash_x86_128(FT_Bitmap * bitmap, HASH_128 * murmur);
+HASH_128 * Generate_Hash_x64_128(FT_Bitmap * bitmap, HASH_128 * murmur);
+
+//-------------------------------------------------------------------------------
+
+int Get_Padding (FT_Bitmap * bitmap);
+
+int Get_Bits_Per_Pixel ( unsigned char PIXEL_MODE );
+
+void Write_Bitmap_Header (FT_Bitmap * bitmap );
+
+void Write_Bitmap_Data_MONO (FT_Bitmap * bitmap);
+void Write_Bitmap_Data_GRAY (FT_Bitmap * bitmap);
+void Write_Bitmap_Data_LCD_BGR (FT_Bitmap * bitmap);
+void Write_Bitmap_Data_LCD_RGB (FT_Bitmap * bitmap);
+void Write_Bitmap_Data_LCD_V_RGB (FT_Bitmap * bitmap);
+void Write_Bitmap_Data_LCD_V_BGR (FT_Bitmap * bitmap);
diff --git a/tests/make_bitmap/example1.c b/tests/make_bitmap/example1.c
new file mode 100644
index 0000000..9bc6121
--- /dev/null
+++ b/tests/make_bitmap/example1.c
@@ -0,0 +1,98 @@
+// This example uses the FreeType rendering library to produce
+// LCD rendered bitmap (RGB) for the glyphs of a font
+// Also gives the MurmurHash3 hash value of the bitmap rendered.
+
+#include "bitmap.h"
+
+int main(int argc, char const *argv[])
+{
+ FT_Library library;
+ FT_Face face;
+ FT_GlyphSlot slot;
+ FT_Bitmap* bitmap;
+ FT_Error error;
+
+ const char* font_file; // Arguments
+ FT_UInt32 size;
+ FT_UInt glyph_index;
+ const char* character;
+
+ if (argc != 4)
+ {
+ printf("\nTo render a RGB bitmap of a glyph to be displayed on an \n");
+ printf("LCD surface and to generate the 128bit MurmurHash3 hash \n\n");
+
+ printf("Filter used is FT_LCD_FILTER_DEFAULT\n\n");
+
+ printf("Usage ./<exe> <font_file> <pt_size> <character>\n\n");
+
+ exit(0);
+ }
+
+ font_file = argv[1];
+ size = atoi(argv[2]);
+ character = argv[3];
+
+ error = FT_Init_FreeType( &library );
+ if(error){
+ printf("Error while initialising library\n");
+ }
+
+ error = FT_Library_SetLcdFilter( library,
+ FT_LCD_FILTER_DEFAULT );
+ if(error){
+ printf("Error while setting LCD filter\n");
+ }
+
+ error = FT_New_Face( library,
+ font_file,
+ 0,
+ &face );
+ if(error){
+ printf("Error loading new face\n");
+ }
+
+ error = FT_Set_Char_Size( face,
+ size * 64,
+ 0,
+ 100,
+ 0 );
+ if(error){
+ printf("Error setting character size\n");
+ }
+
+ glyph_index = FT_Get_Char_Index( face, *character );
+
+ slot = face->glyph;
+
+ error = FT_Load_Glyph( face,
+ glyph_index,
+ FT_LOAD_NO_BITMAP | FT_LOAD_TARGET_LCD );
+ if(error){
+ printf("Error loading glyph\n");
+ }
+
+ FT_Render_Glyph( slot,
+ FT_RENDER_MODE_LCD);
+ if(error){
+ printf("Error rendering the glyph\n");
+ }
+
+ bitmap = &slot->bitmap;
+
+ Write_Bitmap_Header(bitmap);
+ Write_Bitmap_Data_LCD_RGB(bitmap);
+
+ HASH_128 * murmur = (HASH_128 *) malloc(sizeof(HASH_128)) ;
+ murmur = Generate_Hash_x64_128(bitmap,murmur); // using the x64_128
function of the hash
+
+ printf("%08x %08x %08x %08x\n", murmur->hash[0], // Print hash
+ murmur->hash[1],
+ murmur->hash[2],
+ murmur->hash[3]);
+
+ FT_Done_Face ( face );
+ FT_Done_FreeType( library );
+
+ return 0;
+}
\ No newline at end of file
diff --git a/tests/make_bitmap/example2.c b/tests/make_bitmap/example2.c
new file mode 100644
index 0000000..4fa7910
--- /dev/null
+++ b/tests/make_bitmap/example2.c
@@ -0,0 +1,93 @@
+// This example uses the FreeType rendering library to print
+// the MurmurHash3 hash value of the 8-bit anti-aliased
+// bitmaps of all the glyphs in the font.
+
+#include "bitmap.h" // The header file
+
+int main(int argc, char const *argv[])
+{
+ FT_Library library;
+ FT_Face face;
+ FT_GlyphSlot slot;
+ FT_Bitmap* bitmap;
+
+ FT_Error error;
+
+ const char* filename;
+ FT_UInt32 size;
+
+ if (argc != 3)
+ {
+ printf("This program prints the hashes of 8-bit grayscale\n");
+ printf("anti-aliased bitmaps of all the glyphs in a font\n\n");
+
+ printf("Usage ./<exe> <font_file> <pt_size>\n\n");
+ exit(0);
+ }
+
+
+ filename = argv[1];
+ size = atoi(argv[2]);
+
+ error = FT_Init_FreeType( &library );
+ if(error){
+ printf("Error while initialising library\n");
+ }
+
+ error = FT_New_Face( library,
+ filename,
+ 0,
+ &face );
+ if(error){
+ printf("Error loading new face\n");
+ }
+
+ error = FT_Set_Char_Size( face,
+ size * 64,
+ 0,
+ 100,
+ 0 );
+ if(error){
+ printf("Error setting character size\n");
+ }
+
+ slot = face->glyph;
+
+ for (int i = 0; i < face->num_glyphs; ++i) // Loop
+ {
+ error = FT_Load_Glyph( face,
+ i,
+ FT_LOAD_DEFAULT);
+ if(error){
+ printf("Error loading glyph\n");
+ }
+
+ FT_Render_Glyph( slot,
+ FT_RENDER_MODE_NORMAL);
+ if(error){
+ printf("Error rendering the glyph\n");
+ }
+
+ bitmap = &slot->bitmap;
+
+ if (bitmap->width == 0|| bitmap->rows == 0)
+ {
+ printf("%d - Empty Glyph\n",i);
+ continue;
+ }
+
+ HASH_128 * murmur = (HASH_128 *) malloc(sizeof(HASH_128)) ;
+ murmur = Generate_Hash_x64_128(bitmap,murmur);
+
+ printf("%d - %08x %08x %08x %08x\n",i,
+ murmur->hash[0],
+ murmur->hash[1],
+ murmur->hash[2],
+ murmur->hash[3]);
+ }
+
+ FT_Done_Face ( face );
+ FT_Done_FreeType( library );
+
+ return 0;
+}
\ No newline at end of file
diff --git a/tests/make_bitmap/murmur3.c b/tests/make_bitmap/murmur3.c
new file mode 100644
index 0000000..484ebfd
--- /dev/null
+++ b/tests/make_bitmap/murmur3.c
@@ -0,0 +1,312 @@
+//-----------------------------------------------------------------------------
+// Note - The x86 and x64 versions do _not_ produce the same results, as the
+// algorithms are optimized for their respective platforms. You can still
+// compile and run any of them on any platform, but your performance with the
+// non-native version will be less than optimal.
+
+#include "murmur3.h"
+
+//-----------------------------------------------------------------------------
+// Platform-specific functions and macros
+
+#ifdef __GNUC__
+#define FORCE_INLINE __attribute__((always_inline)) inline
+#else
+#define FORCE_INLINE inline
+#endif
+
+static FORCE_INLINE uint32_t rotl32 ( uint32_t x, int8_t r )
+{
+ return (x << r) | (x >> (32 - r));
+}
+
+static FORCE_INLINE uint64_t rotl64 ( uint64_t x, int8_t r )
+{
+ return (x << r) | (x >> (64 - r));
+}
+
+#define ROTL32(x,y) rotl32(x,y)
+#define ROTL64(x,y) rotl64(x,y)
+
+#define BIG_CONSTANT(x) (x##LLU)
+
+//-----------------------------------------------------------------------------
+// Block read - if your platform needs to do endian-swapping or can only
+// handle aligned reads, do the conversion here
+
+#define getblock(p, i) (p[i])
+
+//-----------------------------------------------------------------------------
+// Finalization mix - force all bits of a hash block to avalanche
+
+static FORCE_INLINE uint32_t fmix32 ( uint32_t h )
+{
+ h ^= h >> 16;
+ h *= 0x85ebca6b;
+ h ^= h >> 13;
+ h *= 0xc2b2ae35;
+ h ^= h >> 16;
+
+ return h;
+}
+
+//----------
+
+static FORCE_INLINE uint64_t fmix64 ( uint64_t k )
+{
+ k ^= k >> 33;
+ k *= BIG_CONSTANT(0xff51afd7ed558ccd);
+ k ^= k >> 33;
+ k *= BIG_CONSTANT(0xc4ceb9fe1a85ec53);
+ k ^= k >> 33;
+
+ return k;
+}
+
+//-----------------------------------------------------------------------------
+
+void MurmurHash3_x86_32 ( const void * key, int len,
+ uint32_t seed, void * out )
+{
+ const uint8_t * data = (const uint8_t*)key;
+ const int nblocks = len / 4;
+ int i;
+
+ uint32_t h1 = seed;
+
+ uint32_t c1 = 0xcc9e2d51;
+ uint32_t c2 = 0x1b873593;
+
+ //----------
+ // body
+
+ const uint32_t * blocks = (const uint32_t *)(data + nblocks*4);
+
+ for(i = -nblocks; i; i++)
+ {
+ uint32_t k1 = getblock(blocks,i);
+
+ k1 *= c1;
+ k1 = ROTL32(k1,15);
+ k1 *= c2;
+
+ h1 ^= k1;
+ h1 = ROTL32(h1,13);
+ h1 = h1*5+0xe6546b64;
+ }
+
+ //----------
+ // tail
+
+ const uint8_t * tail = (const uint8_t*)(data + nblocks*4);
+
+ uint32_t k1 = 0;
+
+ switch(len & 3)
+ {
+ case 3: k1 ^= tail[2] << 16;
+ case 2: k1 ^= tail[1] << 8;
+ case 1: k1 ^= tail[0];
+ k1 *= c1; k1 = ROTL32(k1,15); k1 *= c2; h1 ^= k1;
+ };
+
+ //----------
+ // finalization
+
+ h1 ^= len;
+
+ h1 = fmix32(h1);
+
+ *(uint32_t*)out = h1;
+}
+
+//-----------------------------------------------------------------------------
+
+void MurmurHash3_x86_128 ( const void * key, const int len,
+ uint32_t seed, void * out )
+{
+ const uint8_t * data = (const uint8_t*)key;
+ const int nblocks = len / 16;
+ int i;
+
+ uint32_t h1 = seed;
+ uint32_t h2 = seed;
+ uint32_t h3 = seed;
+ uint32_t h4 = seed;
+
+ uint32_t c1 = 0x239b961b;
+ uint32_t c2 = 0xab0e9789;
+ uint32_t c3 = 0x38b34ae5;
+ uint32_t c4 = 0xa1e38b93;
+
+ //----------
+ // body
+
+ const uint32_t * blocks = (const uint32_t *)(data + nblocks*16);
+
+ for(i = -nblocks; i; i++)
+ {
+ uint32_t k1 = getblock(blocks,i*4+0);
+ uint32_t k2 = getblock(blocks,i*4+1);
+ uint32_t k3 = getblock(blocks,i*4+2);
+ uint32_t k4 = getblock(blocks,i*4+3);
+
+ k1 *= c1; k1 = ROTL32(k1,15); k1 *= c2; h1 ^= k1;
+
+ h1 = ROTL32(h1,19); h1 += h2; h1 = h1*5+0x561ccd1b;
+
+ k2 *= c2; k2 = ROTL32(k2,16); k2 *= c3; h2 ^= k2;
+
+ h2 = ROTL32(h2,17); h2 += h3; h2 = h2*5+0x0bcaa747;
+
+ k3 *= c3; k3 = ROTL32(k3,17); k3 *= c4; h3 ^= k3;
+
+ h3 = ROTL32(h3,15); h3 += h4; h3 = h3*5+0x96cd1c35;
+
+ k4 *= c4; k4 = ROTL32(k4,18); k4 *= c1; h4 ^= k4;
+
+ h4 = ROTL32(h4,13); h4 += h1; h4 = h4*5+0x32ac3b17;
+ }
+
+ //----------
+ // tail
+
+ const uint8_t * tail = (const uint8_t*)(data + nblocks*16);
+
+ uint32_t k1 = 0;
+ uint32_t k2 = 0;
+ uint32_t k3 = 0;
+ uint32_t k4 = 0;
+
+ switch(len & 15)
+ {
+ case 15: k4 ^= tail[14] << 16;
+ case 14: k4 ^= tail[13] << 8;
+ case 13: k4 ^= tail[12] << 0;
+ k4 *= c4; k4 = ROTL32(k4,18); k4 *= c1; h4 ^= k4;
+
+ case 12: k3 ^= tail[11] << 24;
+ case 11: k3 ^= tail[10] << 16;
+ case 10: k3 ^= tail[ 9] << 8;
+ case 9: k3 ^= tail[ 8] << 0;
+ k3 *= c3; k3 = ROTL32(k3,17); k3 *= c4; h3 ^= k3;
+
+ case 8: k2 ^= tail[ 7] << 24;
+ case 7: k2 ^= tail[ 6] << 16;
+ case 6: k2 ^= tail[ 5] << 8;
+ case 5: k2 ^= tail[ 4] << 0;
+ k2 *= c2; k2 = ROTL32(k2,16); k2 *= c3; h2 ^= k2;
+
+ case 4: k1 ^= tail[ 3] << 24;
+ case 3: k1 ^= tail[ 2] << 16;
+ case 2: k1 ^= tail[ 1] << 8;
+ case 1: k1 ^= tail[ 0] << 0;
+ k1 *= c1; k1 = ROTL32(k1,15); k1 *= c2; h1 ^= k1;
+ };
+
+ //----------
+ // finalization
+
+ h1 ^= len; h2 ^= len; h3 ^= len; h4 ^= len;
+
+ h1 += h2; h1 += h3; h1 += h4;
+ h2 += h1; h3 += h1; h4 += h1;
+
+ h1 = fmix32(h1);
+ h2 = fmix32(h2);
+ h3 = fmix32(h3);
+ h4 = fmix32(h4);
+
+ h1 += h2; h1 += h3; h1 += h4;
+ h2 += h1; h3 += h1; h4 += h1;
+
+ ((uint32_t*)out)[0] = h1;
+ ((uint32_t*)out)[1] = h2;
+ ((uint32_t*)out)[2] = h3;
+ ((uint32_t*)out)[3] = h4;
+}
+
+//-----------------------------------------------------------------------------
+
+void MurmurHash3_x64_128 ( const void * key, const int len,
+ const uint32_t seed, void * out )
+{
+ const uint8_t * data = (const uint8_t*)key;
+ const int nblocks = len / 16;
+ int i;
+
+ uint64_t h1 = seed;
+ uint64_t h2 = seed;
+
+ uint64_t c1 = BIG_CONSTANT(0x87c37b91114253d5);
+ uint64_t c2 = BIG_CONSTANT(0x4cf5ad432745937f);
+
+ //----------
+ // body
+
+ const uint64_t * blocks = (const uint64_t *)(data);
+
+ for(i = 0; i < nblocks; i++)
+ {
+ uint64_t k1 = getblock(blocks,i*2+0);
+ uint64_t k2 = getblock(blocks,i*2+1);
+
+ k1 *= c1; k1 = ROTL64(k1,31); k1 *= c2; h1 ^= k1;
+
+ h1 = ROTL64(h1,27); h1 += h2; h1 = h1*5+0x52dce729;
+
+ k2 *= c2; k2 = ROTL64(k2,33); k2 *= c1; h2 ^= k2;
+
+ h2 = ROTL64(h2,31); h2 += h1; h2 = h2*5+0x38495ab5;
+ }
+
+ //----------
+ // tail
+
+ const uint8_t * tail = (const uint8_t*)(data + nblocks*16);
+
+ uint64_t k1 = 0;
+ uint64_t k2 = 0;
+
+ switch(len & 15)
+ {
+ case 15: k2 ^= (uint64_t)(tail[14]) << 48;
+ case 14: k2 ^= (uint64_t)(tail[13]) << 40;
+ case 13: k2 ^= (uint64_t)(tail[12]) << 32;
+ case 12: k2 ^= (uint64_t)(tail[11]) << 24;
+ case 11: k2 ^= (uint64_t)(tail[10]) << 16;
+ case 10: k2 ^= (uint64_t)(tail[ 9]) << 8;
+ case 9: k2 ^= (uint64_t)(tail[ 8]) << 0;
+ k2 *= c2; k2 = ROTL64(k2,33); k2 *= c1; h2 ^= k2;
+
+ case 8: k1 ^= (uint64_t)(tail[ 7]) << 56;
+ case 7: k1 ^= (uint64_t)(tail[ 6]) << 48;
+ case 6: k1 ^= (uint64_t)(tail[ 5]) << 40;
+ case 5: k1 ^= (uint64_t)(tail[ 4]) << 32;
+ case 4: k1 ^= (uint64_t)(tail[ 3]) << 24;
+ case 3: k1 ^= (uint64_t)(tail[ 2]) << 16;
+ case 2: k1 ^= (uint64_t)(tail[ 1]) << 8;
+ case 1: k1 ^= (uint64_t)(tail[ 0]) << 0;
+ k1 *= c1; k1 = ROTL64(k1,31); k1 *= c2; h1 ^= k1;
+ };
+
+ //----------
+ // finalization
+
+ h1 ^= len; h2 ^= len;
+
+ h1 += h2;
+ h2 += h1;
+
+ h1 = fmix64(h1);
+ h2 = fmix64(h2);
+
+ h1 += h2;
+ h2 += h1;
+
+ ((uint64_t*)out)[0] = h1;
+ ((uint64_t*)out)[1] = h2;
+}
+
+//-----------------------------------------------------------------------------
+
diff --git a/tests/make_bitmap/murmur3.h b/tests/make_bitmap/murmur3.h
new file mode 100644
index 0000000..90878b0
--- /dev/null
+++ b/tests/make_bitmap/murmur3.h
@@ -0,0 +1,24 @@
+#ifndef _MURMURHASH3_H_
+#define _MURMURHASH3_H_
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+//-----------------------------------------------------------------------------
+
+void MurmurHash3_x86_32 (const void *key, int len, uint32_t seed, void *out);
+
+void MurmurHash3_x86_128(const void *key, int len, uint32_t seed, void *out);
+
+void MurmurHash3_x64_128(const void *key, int len, uint32_t seed, void *out);
+
+//-----------------------------------------------------------------------------
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _MURMURHASH3_H_
diff --git a/tests/make_bitmap/runme.sh b/tests/make_bitmap/runme.sh
new file mode 100755
index 0000000..4243ea5
--- /dev/null
+++ b/tests/make_bitmap/runme.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+gcc example1.c bitmap.c murmur3.c -Wall -I /usr/local/include/freetype2/
-lfreetype -o example1
+gcc example2.c bitmap.c murmur3.c -Wall -I /usr/local/include/freetype2/
-lfreetype -o example2
+
diff --git a/tests/make_png/README b/tests/make_png/README
new file mode 100644
index 0000000..677cf65
--- /dev/null
+++ b/tests/make_png/README
@@ -0,0 +1,37 @@
+To generate hashes and store it in the ./hashes folder,
+
+1) sudo make hash
+ (set resoluton in DPI by passing argument
+ example: sudo make DPI=100, if not specified,default is 72)
+
+2) Usage ./hash <font_file> <pt_size> <render_mode>
+
+ Hashes will be saved in a file named
+ $(font)_$(pt_size)_$(render_mode).hash
+
+ By default, hashes of 256-level gray bitmaps will be generated
+
+ Values for render_mode 0 - monochrome
+ 1 - anti-aliased
+ 2 - lcd horizontal
+ 3 - lcd vertical
+
+To generate 32-bit RGBA PNG(s) of all glyphs in a font\n
+
+1) sudo make png
+ (set resoluton in DPI by passing argument
+ example: sudo make DPI=100, if not specified,default is 72)
+
+2.Usage ./<exe> <font_file> <pt_size> <render_mode>
+
+ Images will be saved in a file named
+ $(font)_$(pt_size)_$(render_mode)_$(glyph_index).png
+
+ By default, hashes of 256-level gray bitmaps will be generated
+
+ Values for render_mode 0 - monochrome
+ 1 - anti-aliased
+ 2 - lcd horizontal-RGB
+ 3 - lcd horizontal-BGR
+ 4 - lcd vertical-RGB
+ 5 - lcd vertical-BGR
\ No newline at end of file
diff --git a/tests/make_png/bitmap.c b/tests/make_png/bitmap.c
new file mode 100644
index 0000000..104acdc
--- /dev/null
+++ b/tests/make_png/bitmap.c
@@ -0,0 +1,282 @@
+#include "bitmap.h"
+
+HASH_128 * Generate_Hash_x64_128( FT_Bitmap * bitmap,
+ HASH_128 * murmur)
+{
+ int seed = 99; // Dont change
+
+ MurmurHash3_x64_128(bitmap->buffer,
+ (bitmap->pitch * bitmap->rows),
+ seed,
+ murmur->hash);
+
+ return murmur;
+}
+
+HASH_128 * Generate_Hash_x86_128( FT_Bitmap * bitmap,
+ HASH_128 * murmur)
+{
+ int seed = 99; // Dont change
+
+ MurmurHash3_x86_128(bitmap->buffer,
+ (bitmap->pitch * bitmap->rows),
+ seed,
+ murmur->hash);
+
+ return murmur;
+}
+
+HASH_32 * Generate_Hash_x86_32( FT_Bitmap * bitmap,
+ HASH_32 * murmur)
+{
+ int seed = 99; // Dont change
+
+ MurmurHash3_x86_32( bitmap->buffer,
+ (bitmap->pitch * bitmap->rows),
+ seed,
+ murmur->hash);
+
+ return murmur;
+}
+
+PIXEL * Pixel_At (IMAGE * bitmap, int x, int y)
+{
+ return bitmap->pixels + bitmap->width * y + x;
+}
+
+int Generate_PNG (IMAGE *bitmap,
+ const char *path,
+ int render_mode)
+{
+ FILE * fp;
+ png_structp png_ptr = NULL;
+ png_infop info_ptr = NULL;
+
+ size_t x, y;
+ png_byte ** row_pointers = NULL;
+
+ int status = -1;
+
+ int pixel_size = 4;
+ int depth = 8;
+
+ fp = fopen (path, "wb");
+ if (! fp) {
+ goto fopen_failed;
+ }
+
+ png_ptr = png_create_write_struct ( PNG_LIBPNG_VER_STRING,
+ NULL,
+ NULL,
+ NULL);
+ if (png_ptr == NULL) {
+ goto png_create_write_struct_failed;
+ }
+
+ info_ptr = png_create_info_struct (png_ptr);
+ if (info_ptr == NULL) {
+ goto png_create_info_struct_failed;
+ }
+
+ if (setjmp (png_jmpbuf (png_ptr))) {
+ goto png_failure;
+ }
+
+ png_set_IHDR (png_ptr,
+ info_ptr,
+ bitmap->width,
+ bitmap->height,
+ depth,
+ PNG_COLOR_TYPE_RGBA,
+ PNG_INTERLACE_NONE,
+ PNG_COMPRESSION_TYPE_DEFAULT,
+ PNG_FILTER_TYPE_DEFAULT);
+
+ row_pointers = png_malloc ( png_ptr,
+ bitmap->height * sizeof (png_byte *));
+
+ for (y = 0; y < bitmap->height; y++) {
+
+ png_byte *row = png_malloc (png_ptr,
+ sizeof (uint8_t) * bitmap->width * pixel_size);
+ row_pointers[y] = row;
+
+ for (x = 0; x < bitmap->width; x++) {
+
+ PIXEL * pixel = Pixel_At (bitmap, x, y);
+
+ if (render_mode == 3 || render_mode == 5)
+ {
+ *row++ = pixel->blue;
+ *row++ = pixel->green;
+ *row++ = pixel->red;
+ *row++ = pixel->alpha;
+ continue;
+ }
+
+ *row++ = pixel->red;
+ *row++ = pixel->green;
+ *row++ = pixel->blue;
+ *row++ = pixel->alpha;
+ }
+ }
+
+ png_init_io ( png_ptr,
+ fp);
+
+ png_set_rows (png_ptr,
+ info_ptr,
+ row_pointers);
+
+ png_write_png ( png_ptr,
+ info_ptr,
+ PNG_TRANSFORM_IDENTITY,
+ NULL);
+
+ status = 0;
+
+ for (y = 0; y < bitmap->height; y++) {
+ png_free (png_ptr, row_pointers[y]);
+ }
+ png_free (png_ptr, row_pointers);
+
+ png_failure:
+ png_create_info_struct_failed:
+ png_destroy_write_struct (&png_ptr, &info_ptr);
+ png_create_write_struct_failed:
+ fclose (fp);
+ fopen_failed:
+ return status;
+}
+
+void Make_PNG(FT_Bitmap* bitmap,char* name,int i,int render_mode){
+
+ IMAGE fruit;
+ int x;
+ int y;
+
+ unsigned char value;
+ int p;
+
+ switch(render_mode){
+
+ case 0 : fruit.width = bitmap->width; // MONO and GRAY
+ fruit.height = bitmap->rows;
+
+ fruit.pixels = calloc ( fruit.width * fruit.height,
+ sizeof (PIXEL));
+
+ for (y = 0; y < fruit.height; y++) {
+ for (x = 0; x < fruit.width; x++) {
+
+ PIXEL * pixel = Pixel_At (& fruit, x, y);
+ p = (y * bitmap->pitch ) + x;
+
+ value = bitmap->buffer[p];
+
+ if ( value != 0x00 ){
+ value = 0xff;
+ }else{
+ value = 0x00;
+ }
+
+ pixel->red = 255- value;
+ pixel->green = 255- value;
+ pixel->blue = 255- value;
+ pixel->alpha = 255;
+ }
+ }
+ break;
+ case 1 : fruit.width = bitmap->width; // MONO and GRAY
+ fruit.height = bitmap->rows;
+
+ fruit.pixels = calloc ( fruit.width * fruit.height,
+ sizeof (PIXEL));
+
+ for (y = 0; y < fruit.height; y++) {
+ for (x = 0; x < fruit.width; x++) {
+
+ PIXEL * pixel = Pixel_At (& fruit, x, y);
+ p = (y * bitmap->pitch ) + x;
+
+ value = bitmap->buffer[p];
+
+ pixel->red = 255- value;
+ pixel->green = 255- value;
+ pixel->blue = 255- value;
+ pixel->alpha = 255;
+ }
+ }
+ break;
+
+ case 2 :
+ case 3 : fruit.width = bitmap->width / 3; // LCD
+ fruit.height = bitmap->rows;
+
+ fruit.pixels = calloc ( fruit.width * fruit.height,
+ sizeof (PIXEL));
+
+ for (y = 0; y < fruit.height; y++) {
+ for (x = 0; x < fruit.width; x++) {
+
+ PIXEL * pixel = Pixel_At (& fruit, x, y);
+ p = (y * bitmap->pitch ) + (x)*3;
+
+ value = bitmap->buffer[p];
+ pixel->red = 255- value;
+ p++;
+
+ value = bitmap->buffer[p];
+ pixel->green = 255- value;
+ p++;
+
+ value = bitmap->buffer[p];
+ pixel->blue = 255- value;
+
+ pixel->alpha = 255;
+ }
+ }
+ break;
+
+ case 4 :
+ case 5 : fruit.width = bitmap->width; // LCD_V
+ fruit.height = bitmap->rows / 3;
+
+ fruit.pixels = calloc ( fruit.width * fruit.height,
+ sizeof (PIXEL));
+
+ for (y = 0; y < fruit.height; y++) {
+ for (x = 0; x < fruit.width; x++) {
+
+ PIXEL * pixel = Pixel_At (& fruit, x, y);
+ p = ((y*3) * bitmap->pitch ) + x;
+
+ value = bitmap->buffer[p];
+ pixel->red = 255- value;
+ p += bitmap->pitch;
+
+ value = bitmap->buffer[p];
+ pixel->green = 255- value;
+ p += bitmap->pitch;
+
+ value = bitmap->buffer[p];
+ pixel->blue = 255- value;
+
+ pixel->alpha = 255;
+ }
+ }
+ break;
+
+ default : fruit.width = bitmap->width;
+ fruit.height = bitmap->rows;
+ break;
+ }
+
+ char * file_name = ( char * )calloc(150,sizeof(char));
+
+ sprintf(file_name, "%s_%d", name, i);
+
+ Generate_PNG (& fruit, file_name, render_mode);
+
+ free (fruit.pixels);
+}
\ No newline at end of file
diff --git a/tests/make_png/bitmap.h b/tests/make_png/bitmap.h
new file mode 100644
index 0000000..426d622
--- /dev/null
+++ b/tests/make_png/bitmap.h
@@ -0,0 +1,67 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <unistd.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <ft2build.h>
+
+#include "murmur3.h" // MurmurHash3_x64_128 header file
+
+#include <png.h>
+
+
+#include FT_FREETYPE_H
+#include FT_MODULE_H
+#include FT_LCD_FILTER_H
+#include FT_BITMAP_H
+
+#define BITS_PER_PIXEL_RGBA 32
+
+typedef struct { // To store 32bit Hash
+ FT_UInt32 hash[1];
+}HASH_32;
+
+typedef struct { // To store 128bit Hash
+ FT_UInt32 hash[4];
+}HASH_128;
+
+typedef struct {
+ unsigned char red;
+ unsigned char green;
+ unsigned char blue;
+ unsigned char alpha;
+} PIXEL;
+
+typedef struct {
+ unsigned char red;
+ unsigned char green;
+ unsigned char blue;
+ unsigned char alpha;
+} PIXEL_BGRA;
+
+/* A picture. */
+
+typedef struct {
+ PIXEL *pixels;
+ size_t width;
+ size_t height;
+} IMAGE;
+
+//------------------------------------------------------------------------------
+
+HASH_32 * Generate_Hash_x86_32(FT_Bitmap * bitmap, HASH_32 * murmur);
+HASH_128 * Generate_Hash_x86_128(FT_Bitmap * bitmap, HASH_128 * murmur);
+HASH_128 * Generate_Hash_x64_128(FT_Bitmap * bitmap, HASH_128 * murmur);
+
+//------------------------------------------------------------------------------
+
+PIXEL * Pixel_At (IMAGE * bitmap, int x, int y); // Returns a pointer to pixel
+ // at (x,y) co-ordinate
+// buffer to image
+void Make_PNG(FT_Bitmap* bitmap,char* name,int i,int render_mode);
+// Image to file
+int Generate_PNG (IMAGE *bitmap, const char *path,int render_mode);
+
diff --git a/tests/make_png/hash_to_file.c b/tests/make_png/hash_to_file.c
new file mode 100644
index 0000000..e344659
--- /dev/null
+++ b/tests/make_png/hash_to_file.c
@@ -0,0 +1,151 @@
+#include "bitmap.h"
+
+int main (int argc, char const *argv[])
+{
+ FT_Library library;
+ FT_Face face;
+ FT_GlyphSlot slot;
+
+ FT_Bitmap* bitmap;
+
+ FT_Error error;
+
+ const char* font_file;
+ int size;
+ int render_mode; // argument
+
+ int load_flag; // FT_LOAD_XXX
+ int render_flag; // FT_RENDER_MODE_XXX
+ int target_flag; // FT_LOAD_TARGET_XXX
+ char* render_type; // for file_name
+
+ char name[100]; // hashes file name
+ int i; // for loop
+
+ if (argc != 4)
+ {
+ printf("\nTo generate MurmurHash3 hash values of all glyphs\n");
+ printf("Hashes will be saved in a file named\n \
+ $(font)_$(pt_size)_$(render_mode).hash \n\n");
+
+ printf("Default: hashes of 256-level gray bitmaps will be generated\n\n");
+
+ printf("Usage ./<exe> <font_file> <pt_size> <render_mode>\n\n");
+
+ printf("Values for render_mode 0 - monochrome\n");
+ printf(" 1 - anti-aliased\n");
+ printf(" 2 - lcd horizontal-RGB\n");
+ printf(" 3 - lcd vertical-RGB\n");
+
+ return 1;
+ }
+
+ font_file = argv[1];
+ size = atof(argv[2]);
+ render_mode = atoi(argv[3]);
+
+ error = FT_Init_FreeType( &library );
+ if(error){
+ printf("Error while initialising library\n");
+ }
+
+ if (render_mode > 1 )
+ {
+ error = FT_Library_SetLcdFilter( library,
+ FT_LCD_FILTER_DEFAULT );
+ if(error){
+ printf("Error while setting LCD filter\n");
+ }
+ }
+
+ error = FT_New_Face( library,
+ font_file,
+ 0,
+ &face );
+ if(error){
+ printf("Error loading new face\n");
+ }
+
+ error = FT_Set_Char_Size( face,
+ size * 64,
+ 0,
+ DPI,
+ 0 );
+ if(error){
+ printf("Error setting character size\n");
+ }
+
+ switch ( render_mode ) {
+ case 0: render_flag = FT_RENDER_MODE_MONO;
+ load_flag = FT_LOAD_DEFAULT;
+ target_flag = FT_LOAD_TARGET_MONO;
+ render_type = "mono";
+ break;
+
+ case 1: render_flag = FT_RENDER_MODE_NORMAL;
+ load_flag = FT_LOAD_DEFAULT;
+ target_flag = FT_LOAD_TARGET_NORMAL;
+ render_type = "gray";
+ break;
+
+ case 2: render_flag = FT_RENDER_MODE_LCD;
+ load_flag = FT_LOAD_DEFAULT;
+ target_flag = FT_LOAD_TARGET_LCD;
+ render_type = "lcd_rgb";
+ break;
+
+ case 3: render_flag = FT_RENDER_MODE_LCD_V;
+ load_flag = FT_LOAD_DEFAULT;
+ target_flag = FT_LOAD_TARGET_LCD_V;
+ render_type = "lcd_ver_rgb";
+ break;
+
+ default:render_flag = FT_RENDER_MODE_NORMAL;
+ load_flag = FT_LOAD_DEFAULT;
+ target_flag = FT_LOAD_TARGET_NORMAL;
+ render_type = "gray";
+ }
+
+ slot = face->glyph;
+
+ FILE* fp;
+
+ sprintf(name,"./hashes/%s_%d_%s.hash",font_file,
+
size,
+
render_type);
+
+ fp = fopen(name,"w");
+
+ for (i = 0; i < face->num_glyphs; ++i)
+ {
+ error = FT_Load_Glyph( face,
+ i,
+ load_flag | target_flag);
+ if(error){
+ printf("Error loading glyph\n");
+ }
+
+ FT_Render_Glyph( slot,
+ render_flag);
+ if(error){
+ printf("Error rendering the glyph\n");
+ }
+
+ bitmap = &slot->bitmap;
+
+ HASH_128 * murmur = (HASH_128 *) malloc(sizeof(HASH_128)) ;
+ murmur = Generate_Hash_x64_128(bitmap,murmur);
+
+ fprintf(fp, "%08x %08x %08x %08x\n", murmur->hash[0], // Print hash
+ murmur->hash[1],
+ murmur->hash[2],
+ murmur->hash[3]);
+ }
+ fclose(fp);
+
+ FT_Done_Face ( face );
+ FT_Done_FreeType( library );
+
+ return 0;
+
+}
diff --git a/tests/make_png/make_png.c b/tests/make_png/make_png.c
new file mode 100644
index 0000000..8b59d44
--- /dev/null
+++ b/tests/make_png/make_png.c
@@ -0,0 +1,178 @@
+#include "bitmap.h"
+
+int main (int argc, char const *argv[])
+{
+ FT_Library library;
+ FT_Face face;
+ FT_GlyphSlot slot;
+
+ FT_Bitmap* bitmap;
+
+ FT_Error error;
+
+ const char* font_file;
+ int size;
+ int render_mode; // argument
+
+ int load_flag; // FT_LOAD_XXX
+ int render_flag; // FT_RENDER_MODE_XXX
+ int target_flag; // FT_LOAD_TARGET_XXX
+ char* render_type; // for file_name
+
+ char name[100]; // hashes file name
+ int i; // for loop
+
+ if (argc != 4)
+ {
+ printf("\nTo generate 32-bit RGBA PNG(s) of all glyphs in a font\n");
+ printf("Images will be saved in a file named \n\
+ $(font)_$(pt_size)_$(render_mode)_$(glyph_index).png \n\n");
+
+ printf("Default: hashes of 256-level gray bitmaps will be generated\n\n");
+
+ printf("Usage ./<exe> <font_file> <pt_size> <render_mode>\n\n");
+
+ printf("Values for render_mode 0 - monochrome\n");
+ printf(" 1 - anti-aliased\n");
+ printf(" 2 - lcd horizontal-RGB\n");
+ printf(" 3 - lcd horizontal-BGR\n");
+ printf(" 4 - lcd vertical-RGB\n");
+ printf(" 5 - lcd vertical-BGR\n");
+
+ return 1;
+ }
+
+ font_file = argv[1];
+ size = atof(argv[2]);
+ render_mode = atoi(argv[3]);
+
+ error = FT_Init_FreeType( &library );
+ if(error){
+ printf("Error while initialising library\n");
+ }
+
+ if (render_mode > 1 )
+ {
+ error = FT_Library_SetLcdFilter( library,
+ FT_LCD_FILTER_DEFAULT );
+ if(error){
+ printf("Error while setting LCD filter\n");
+ }
+ }
+
+ error = FT_New_Face( library,
+ font_file,
+ 0,
+ &face );
+ if(error){
+ printf("Error loading new face\n");
+ }
+
+ error = FT_Set_Char_Size( face,
+ size * 64,
+ 0,
+ DPI,
+ 0 );
+ if(error){
+ printf("Error setting character size\n");
+ }
+
+ switch ( render_mode ) {
+ case 0: render_flag = FT_RENDER_MODE_MONO;
+ load_flag = FT_LOAD_MONOCHROME;
+ target_flag = FT_LOAD_TARGET_MONO;
+ render_type = "mono";
+ break;
+
+ case 1: render_flag = FT_RENDER_MODE_NORMAL;
+ load_flag = FT_LOAD_DEFAULT;
+ target_flag = FT_LOAD_TARGET_NORMAL;
+ render_type = "gray";
+ break;
+
+ case 2: render_flag = FT_RENDER_MODE_LCD;
+ load_flag = FT_LOAD_DEFAULT;
+ target_flag = FT_LOAD_TARGET_LCD;
+ render_type = "lcd_rgb";
+ break;
+
+ case 3: render_flag = FT_RENDER_MODE_LCD;
+ load_flag = FT_LOAD_DEFAULT;
+ target_flag = FT_LOAD_TARGET_LCD;
+ render_type = "lcd_bgr";
+ break;
+
+ case 4: render_flag = FT_RENDER_MODE_LCD_V;
+ load_flag = FT_LOAD_DEFAULT;
+ target_flag = FT_LOAD_TARGET_LCD_V;
+ render_type = "lcd_ver_rgb";
+ break;
+
+ case 5: render_flag = FT_RENDER_MODE_LCD_V;
+ load_flag = FT_LOAD_DEFAULT;
+ target_flag = FT_LOAD_TARGET_LCD_V;
+ render_type = "lcd_ver_bgr";
+ break;
+
+ default:render_flag = FT_RENDER_MODE_NORMAL;
+ load_flag = FT_LOAD_DEFAULT;
+ target_flag = FT_LOAD_TARGET_NORMAL;
+ render_type = "gray";
+ }
+
+ slot = face->glyph;
+
+ sprintf(name,"./images/%s_%d_%s", font_file,
+
size,
+
render_type);
+
+ for (i = 0; i <face->num_glyphs; ++i)
+ {
+ error = FT_Load_Glyph( face,
+ i,
+ load_flag | target_flag);
+ if(error){
+ printf("Error loading glyph\n");
+ }
+
+ FT_Render_Glyph( slot,
+ render_flag);
+ if(error){
+ printf("Error rendering the glyph\n");
+ }
+
+ bitmap = &slot->bitmap;
+
+ if (bitmap->width == 0 || bitmap->rows == 0)
+ {
+ continue;
+ }
+
+ FT_Bitmap target;
+ FT_Bitmap_Init( &target );
+
+ int alignment = 4;
+ error = FT_Bitmap_Convert( library,
+ bitmap,
+ &target,
+ alignment);
+ if(error){
+ printf("Error converting the bitmap\n");
+ }
+
+ if (render_mode == 0)
+ {
+ Make_PNG(&target,name,i,render_mode);
+
+ }else{
+
+ Make_PNG(bitmap,name,i,render_mode);
+ }
+ }
+
+ FT_Done_Face ( face );
+ FT_Done_FreeType( library );
+
+ return 0;
+
+}
diff --git a/tests/make_png/makefile b/tests/make_png/makefile
new file mode 100644
index 0000000..691a6fd
--- /dev/null
+++ b/tests/make_png/makefile
@@ -0,0 +1,28 @@
+# Define required macros here
+
+SHELL = /bin/sh
+
+SRC_HASH = hash_to_file.c bitmap.c murmur3.c
+SRC_PNG = make_png.c bitmap.c murmur3.c
+OBJS = $(src:.c=.o)
+
+CFLAGS = -Wall -g
+CC = gcc
+INCLUDE = -I /usr/local/include/freetype2/
+LIBS = -lfreetype -lpng
+
+DPI = 72
+
+all: png hash
+
+png:$(SRC_PNG)
+ $(CC) $(CFLAGS) $(INCLUDE) -DDPI=$(DPI) -o $@ $(SRC_PNG) $(OBJS)
$(LIBS)
+
+hash:$(SRC_HASH)
+ $(CC) $(CFLAGS) $(INCLUDE) -DDPI=$(DPI) -o $@ $(SRC_HASH) $(OBJS)
$(LIBS)
+
+.PHONY: clean
+clean:
+ -rm -f *.o
+
+
diff --git a/tests/make_png/murmur3.c b/tests/make_png/murmur3.c
new file mode 100644
index 0000000..484ebfd
--- /dev/null
+++ b/tests/make_png/murmur3.c
@@ -0,0 +1,312 @@
+//-----------------------------------------------------------------------------
+// Note - The x86 and x64 versions do _not_ produce the same results, as the
+// algorithms are optimized for their respective platforms. You can still
+// compile and run any of them on any platform, but your performance with the
+// non-native version will be less than optimal.
+
+#include "murmur3.h"
+
+//-----------------------------------------------------------------------------
+// Platform-specific functions and macros
+
+#ifdef __GNUC__
+#define FORCE_INLINE __attribute__((always_inline)) inline
+#else
+#define FORCE_INLINE inline
+#endif
+
+static FORCE_INLINE uint32_t rotl32 ( uint32_t x, int8_t r )
+{
+ return (x << r) | (x >> (32 - r));
+}
+
+static FORCE_INLINE uint64_t rotl64 ( uint64_t x, int8_t r )
+{
+ return (x << r) | (x >> (64 - r));
+}
+
+#define ROTL32(x,y) rotl32(x,y)
+#define ROTL64(x,y) rotl64(x,y)
+
+#define BIG_CONSTANT(x) (x##LLU)
+
+//-----------------------------------------------------------------------------
+// Block read - if your platform needs to do endian-swapping or can only
+// handle aligned reads, do the conversion here
+
+#define getblock(p, i) (p[i])
+
+//-----------------------------------------------------------------------------
+// Finalization mix - force all bits of a hash block to avalanche
+
+static FORCE_INLINE uint32_t fmix32 ( uint32_t h )
+{
+ h ^= h >> 16;
+ h *= 0x85ebca6b;
+ h ^= h >> 13;
+ h *= 0xc2b2ae35;
+ h ^= h >> 16;
+
+ return h;
+}
+
+//----------
+
+static FORCE_INLINE uint64_t fmix64 ( uint64_t k )
+{
+ k ^= k >> 33;
+ k *= BIG_CONSTANT(0xff51afd7ed558ccd);
+ k ^= k >> 33;
+ k *= BIG_CONSTANT(0xc4ceb9fe1a85ec53);
+ k ^= k >> 33;
+
+ return k;
+}
+
+//-----------------------------------------------------------------------------
+
+void MurmurHash3_x86_32 ( const void * key, int len,
+ uint32_t seed, void * out )
+{
+ const uint8_t * data = (const uint8_t*)key;
+ const int nblocks = len / 4;
+ int i;
+
+ uint32_t h1 = seed;
+
+ uint32_t c1 = 0xcc9e2d51;
+ uint32_t c2 = 0x1b873593;
+
+ //----------
+ // body
+
+ const uint32_t * blocks = (const uint32_t *)(data + nblocks*4);
+
+ for(i = -nblocks; i; i++)
+ {
+ uint32_t k1 = getblock(blocks,i);
+
+ k1 *= c1;
+ k1 = ROTL32(k1,15);
+ k1 *= c2;
+
+ h1 ^= k1;
+ h1 = ROTL32(h1,13);
+ h1 = h1*5+0xe6546b64;
+ }
+
+ //----------
+ // tail
+
+ const uint8_t * tail = (const uint8_t*)(data + nblocks*4);
+
+ uint32_t k1 = 0;
+
+ switch(len & 3)
+ {
+ case 3: k1 ^= tail[2] << 16;
+ case 2: k1 ^= tail[1] << 8;
+ case 1: k1 ^= tail[0];
+ k1 *= c1; k1 = ROTL32(k1,15); k1 *= c2; h1 ^= k1;
+ };
+
+ //----------
+ // finalization
+
+ h1 ^= len;
+
+ h1 = fmix32(h1);
+
+ *(uint32_t*)out = h1;
+}
+
+//-----------------------------------------------------------------------------
+
+void MurmurHash3_x86_128 ( const void * key, const int len,
+ uint32_t seed, void * out )
+{
+ const uint8_t * data = (const uint8_t*)key;
+ const int nblocks = len / 16;
+ int i;
+
+ uint32_t h1 = seed;
+ uint32_t h2 = seed;
+ uint32_t h3 = seed;
+ uint32_t h4 = seed;
+
+ uint32_t c1 = 0x239b961b;
+ uint32_t c2 = 0xab0e9789;
+ uint32_t c3 = 0x38b34ae5;
+ uint32_t c4 = 0xa1e38b93;
+
+ //----------
+ // body
+
+ const uint32_t * blocks = (const uint32_t *)(data + nblocks*16);
+
+ for(i = -nblocks; i; i++)
+ {
+ uint32_t k1 = getblock(blocks,i*4+0);
+ uint32_t k2 = getblock(blocks,i*4+1);
+ uint32_t k3 = getblock(blocks,i*4+2);
+ uint32_t k4 = getblock(blocks,i*4+3);
+
+ k1 *= c1; k1 = ROTL32(k1,15); k1 *= c2; h1 ^= k1;
+
+ h1 = ROTL32(h1,19); h1 += h2; h1 = h1*5+0x561ccd1b;
+
+ k2 *= c2; k2 = ROTL32(k2,16); k2 *= c3; h2 ^= k2;
+
+ h2 = ROTL32(h2,17); h2 += h3; h2 = h2*5+0x0bcaa747;
+
+ k3 *= c3; k3 = ROTL32(k3,17); k3 *= c4; h3 ^= k3;
+
+ h3 = ROTL32(h3,15); h3 += h4; h3 = h3*5+0x96cd1c35;
+
+ k4 *= c4; k4 = ROTL32(k4,18); k4 *= c1; h4 ^= k4;
+
+ h4 = ROTL32(h4,13); h4 += h1; h4 = h4*5+0x32ac3b17;
+ }
+
+ //----------
+ // tail
+
+ const uint8_t * tail = (const uint8_t*)(data + nblocks*16);
+
+ uint32_t k1 = 0;
+ uint32_t k2 = 0;
+ uint32_t k3 = 0;
+ uint32_t k4 = 0;
+
+ switch(len & 15)
+ {
+ case 15: k4 ^= tail[14] << 16;
+ case 14: k4 ^= tail[13] << 8;
+ case 13: k4 ^= tail[12] << 0;
+ k4 *= c4; k4 = ROTL32(k4,18); k4 *= c1; h4 ^= k4;
+
+ case 12: k3 ^= tail[11] << 24;
+ case 11: k3 ^= tail[10] << 16;
+ case 10: k3 ^= tail[ 9] << 8;
+ case 9: k3 ^= tail[ 8] << 0;
+ k3 *= c3; k3 = ROTL32(k3,17); k3 *= c4; h3 ^= k3;
+
+ case 8: k2 ^= tail[ 7] << 24;
+ case 7: k2 ^= tail[ 6] << 16;
+ case 6: k2 ^= tail[ 5] << 8;
+ case 5: k2 ^= tail[ 4] << 0;
+ k2 *= c2; k2 = ROTL32(k2,16); k2 *= c3; h2 ^= k2;
+
+ case 4: k1 ^= tail[ 3] << 24;
+ case 3: k1 ^= tail[ 2] << 16;
+ case 2: k1 ^= tail[ 1] << 8;
+ case 1: k1 ^= tail[ 0] << 0;
+ k1 *= c1; k1 = ROTL32(k1,15); k1 *= c2; h1 ^= k1;
+ };
+
+ //----------
+ // finalization
+
+ h1 ^= len; h2 ^= len; h3 ^= len; h4 ^= len;
+
+ h1 += h2; h1 += h3; h1 += h4;
+ h2 += h1; h3 += h1; h4 += h1;
+
+ h1 = fmix32(h1);
+ h2 = fmix32(h2);
+ h3 = fmix32(h3);
+ h4 = fmix32(h4);
+
+ h1 += h2; h1 += h3; h1 += h4;
+ h2 += h1; h3 += h1; h4 += h1;
+
+ ((uint32_t*)out)[0] = h1;
+ ((uint32_t*)out)[1] = h2;
+ ((uint32_t*)out)[2] = h3;
+ ((uint32_t*)out)[3] = h4;
+}
+
+//-----------------------------------------------------------------------------
+
+void MurmurHash3_x64_128 ( const void * key, const int len,
+ const uint32_t seed, void * out )
+{
+ const uint8_t * data = (const uint8_t*)key;
+ const int nblocks = len / 16;
+ int i;
+
+ uint64_t h1 = seed;
+ uint64_t h2 = seed;
+
+ uint64_t c1 = BIG_CONSTANT(0x87c37b91114253d5);
+ uint64_t c2 = BIG_CONSTANT(0x4cf5ad432745937f);
+
+ //----------
+ // body
+
+ const uint64_t * blocks = (const uint64_t *)(data);
+
+ for(i = 0; i < nblocks; i++)
+ {
+ uint64_t k1 = getblock(blocks,i*2+0);
+ uint64_t k2 = getblock(blocks,i*2+1);
+
+ k1 *= c1; k1 = ROTL64(k1,31); k1 *= c2; h1 ^= k1;
+
+ h1 = ROTL64(h1,27); h1 += h2; h1 = h1*5+0x52dce729;
+
+ k2 *= c2; k2 = ROTL64(k2,33); k2 *= c1; h2 ^= k2;
+
+ h2 = ROTL64(h2,31); h2 += h1; h2 = h2*5+0x38495ab5;
+ }
+
+ //----------
+ // tail
+
+ const uint8_t * tail = (const uint8_t*)(data + nblocks*16);
+
+ uint64_t k1 = 0;
+ uint64_t k2 = 0;
+
+ switch(len & 15)
+ {
+ case 15: k2 ^= (uint64_t)(tail[14]) << 48;
+ case 14: k2 ^= (uint64_t)(tail[13]) << 40;
+ case 13: k2 ^= (uint64_t)(tail[12]) << 32;
+ case 12: k2 ^= (uint64_t)(tail[11]) << 24;
+ case 11: k2 ^= (uint64_t)(tail[10]) << 16;
+ case 10: k2 ^= (uint64_t)(tail[ 9]) << 8;
+ case 9: k2 ^= (uint64_t)(tail[ 8]) << 0;
+ k2 *= c2; k2 = ROTL64(k2,33); k2 *= c1; h2 ^= k2;
+
+ case 8: k1 ^= (uint64_t)(tail[ 7]) << 56;
+ case 7: k1 ^= (uint64_t)(tail[ 6]) << 48;
+ case 6: k1 ^= (uint64_t)(tail[ 5]) << 40;
+ case 5: k1 ^= (uint64_t)(tail[ 4]) << 32;
+ case 4: k1 ^= (uint64_t)(tail[ 3]) << 24;
+ case 3: k1 ^= (uint64_t)(tail[ 2]) << 16;
+ case 2: k1 ^= (uint64_t)(tail[ 1]) << 8;
+ case 1: k1 ^= (uint64_t)(tail[ 0]) << 0;
+ k1 *= c1; k1 = ROTL64(k1,31); k1 *= c2; h1 ^= k1;
+ };
+
+ //----------
+ // finalization
+
+ h1 ^= len; h2 ^= len;
+
+ h1 += h2;
+ h2 += h1;
+
+ h1 = fmix64(h1);
+ h2 = fmix64(h2);
+
+ h1 += h2;
+ h2 += h1;
+
+ ((uint64_t*)out)[0] = h1;
+ ((uint64_t*)out)[1] = h2;
+}
+
+//-----------------------------------------------------------------------------
+
diff --git a/tests/make_png/murmur3.h b/tests/make_png/murmur3.h
new file mode 100644
index 0000000..90878b0
--- /dev/null
+++ b/tests/make_png/murmur3.h
@@ -0,0 +1,24 @@
+#ifndef _MURMURHASH3_H_
+#define _MURMURHASH3_H_
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+//-----------------------------------------------------------------------------
+
+void MurmurHash3_x86_32 (const void *key, int len, uint32_t seed, void *out);
+
+void MurmurHash3_x86_128(const void *key, int len, uint32_t seed, void *out);
+
+void MurmurHash3_x64_128(const void *key, int len, uint32_t seed, void *out);
+
+//-----------------------------------------------------------------------------
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _MURMURHASH3_H_
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- [freetype2] kushal_glyph_test e5bdfde: Merge branch 'ksvsk_test' of into kushal_glyph_test,
Kushal K S V S <=