- Added new function to libimg.h

- Updated libimg example
( applicable to ktcc )

git-svn-id: svn://kolibrios.org@8541 a494cfbc-eb01-0410-851d-a64ba20cac60

programs/develop/ktcc/trunk/lib/libimg/Makefile

@@ -1,5 +1,9 @@
 all:
 	fasm loadlibimg.asm
 	ar -csr libimg.a loadlibimg.o
+
+install:	
+	mv libimg.a ../../bin/lib/libimg.a
+
 clean:
 	rm -f *.o *.a

programs/develop/ktcc/trunk/lib/libimg/loadlibimg.asm

@@ -62,14 +62,13 @@ import lib_libimg, \
 	img_flip_layer, 'img_flip_layer', \
 	img_rotate, 'img_rotate', \
 	img_rotate_layer, 'img_rotate_layer', \
-	img_draw, 'img_draw'
+	img_draw, 'img_draw', \ 
+	img_blend, 'img_blend', \
+	img_convert, 'img_convert', \
+    img_resize_data, 'img_resize_data', \
+    img_scale, 'img_scale'
 	
 public libimg_init as  'libimg_init'
-;	public img_is_img as  '_img_is_img'
-;public img_info as  '_img_info'
-;public img_from_file as  '_img_from_file'
-;public img_to_file as  '_img_to_file'
-;public img_from_rgb as  '_img_from_rgb'
 public img_to_rgb as  'img_to_rgb'
 public img_to_rgb2 as  'img_to_rgb2'
 public img_decode as  'img_decode'
@@ -78,10 +77,12 @@ public img_create as  'img_create'
 public img_destroy as  'img_destroy'
 public img_destroy_layer as  'img_destroy_layer'
 public img_count as  'img_count'
-;public img_lock_bits as  '_img_lock_bits'
-;public img_unlock_bits as  '_img_unlock_bits'
 public img_flip as  'img_flip'
 public img_flip_layer as  'img_flip_layer'
 public img_rotate as  'img_rotate'
 public img_rotate_layer as  'img_rotate_layer'
 public img_draw as  'img_draw'
+public img_blend as 'img_blend'
+public img_convert as 'img_convert'
+public img_resize_data as 'img_resize_data'
+public img_scale as 'img_scale'

programs/develop/ktcc/trunk/libc/include/clayer/libimg.h

@@ -1,9 +1,15 @@
+/* Written by turbocat2001 (Logaev Maxim) */
+
 #ifndef KOLIBRI_LIBIMG_H
 #define KOLIBRI_LIBIMG_H
 
 #include <stddef.h>
+#include <stdbool.h>
+
 extern int kolibri_libimg_init(void);
 
+#define _stdcall __attribute__((__stdcall__))
+
 //list of format id's
 #define LIBIMG_FORMAT_BMP       1
 #define LIBIMG_FORMAT_ICO       2
@@ -20,6 +26,22 @@ extern int kolibri_libimg_init(void);
 #define LIBIMG_FORMAT_XBM       13
 #define LIBIMG_FORMAT_Z80       14
 
+#pragma pack(push, 1)
+typedef struct{
+  uint32_t Checksum; // ((Width ROL 16) OR Height) XOR Data[0]        ; ignored so far
+  uint32_t Width;
+  uint32_t Height;
+  uint32_t Next;
+  uint32_t Previous;
+  uint32_t Type;     // one of Image.bppN
+  uint32_t* Data;
+  uint32_t Palette;  // used iff Type eq Image.bpp1, Image.bpp2, Image.bpp4 or Image.bpp8i
+  uint32_t Extended;
+  uint32_t Flags;    // bitfield
+  uint32_t Delay;    // used iff Image.IsAnimated is set in Flags
+} Image;
+#pragma pack(pop);
+
 #define IMAGE_BPP8i  1  // indexed
 #define IMAGE_BPP24  2
 #define IMAGE_BPP32  3
@@ -31,6 +53,25 @@ extern int kolibri_libimg_init(void);
 #define IMAGE_BPP4i  9
 #define IMAGE_BPP8a 10 
 
+// scale type
+#define LIBIMG_SCALE_NONE       0 
+#define LIBIMG_SCALE_INTEGER    1   
+#define LIBIMG_SCALE_TILE       2    
+#define LIBIMG_SCALE_STRETCH    3  
+#define LIBIMG_SCALE_FIT_BOTH   LIBIMG_SCALE_STRETCH
+#define LIBIMG_SCALE_FIT_MIN    4
+#define LIBIMG_SCALE_FIT_RECT   LIBIMG_SCALE_FIT_MIN
+#define LIBIMG_SCALE_FIT_WIDTH  5  
+#define LIBIMG_SCALE_FIT_HEIGHT 6 
+#define LIBIMG_SCALE_FIT_MAX    7     
+
+// interpolation algorithm
+#define LIBIMG_INTER_NONE       0     // use it with LIBIMG_SCALE_INTEGER, LIBIMG_SCALE_TILE, etc
+#define LIBIMG_INTER_BILINEAR   1
+#define LIBIMG_INTER_BICUBIC    2
+#define LIBIMG_INTER_LANCZOS    3
+#define LIBIMG_INTER_DEFAULT   LIBIMG_INTER_BILINEAR
+
 //error codes
 #define LIBIMG_ERROR_OUT_OF_MEMORY      1
 #define LIBIMG_ERROR_FORMAT             2
@@ -49,7 +90,6 @@ extern int kolibri_libimg_init(void);
 #define LIBIMG_ENCODE_DELETE_ALPHA      0x08
 #define LIBIMG_ENCODE_FLUSH_ALPHA       0x10
 
-
 #define FLIP_VERTICAL   0x01
 #define FLIP_HORIZONTAL 0x02
 
@@ -59,18 +99,28 @@ extern int kolibri_libimg_init(void);
 #define ROTATE_90_CCW   ROTATE_270_CW
 #define ROTATE_270_CCW  ROTATE_90_CW
 
-extern void*    (*img_decode __attribute__((__stdcall__)))(void* file_data, uint32_t length, uint32_t options);
-extern void*    (*img_encode __attribute__((__stdcall__)))(void* image_data, uint32_t length, uint32_t option);
-extern void*    (*img_create __attribute__((__stdcall__)))(uint32_t width, uint32_t height, uint32_t type);
-extern void     (*img_to_rgb2 __attribute__((__stdcall__)))(void* image_data, void *rgb_data);
-extern void*    (*img_to_rgb __attribute__((__stdcall__)))(void *image_data);
-extern uint32_t (*img_flip __attribute__((__stdcall__)))(void* image_data, uint32_t flip);
-extern uint32_t (*img_flip_layer __attribute__((__stdcall__)))(void *image_data, uint32_t flip);
-extern uint32_t (*img_rotate __attribute__((__stdcall__)))(void* image_data, uint32_t rotate);
-extern uint32_t (*img_rotate_layer __attribute__((__stdcall__)))(void* image_data, uint32_t rotate);
-extern void     (*img_draw __attribute__((__stdcall__)))(void *image_data, uint32_t x, uint32_t y, uint32_t w, uint32_t h, uint32_t xoff,  uint32_t yoff);
-extern uint32_t (*img_count __attribute__((__stdcall__)))(void *image_data);
-extern uint32_t (*img_destroy __attribute__((__stdcall__)))(void *image_data);
-extern uint32_t (*img_destroy_layer __attribute__((__stdcall__)))(void* image_data);
+extern Image*   (*img_decode _stdcall)(void* file_data, uint32_t size, uint32_t b_color);
+extern Image*   (*img_encode _stdcall)(Image* img, uint32_t length, uint32_t option);
+extern Image*   (*img_create _stdcall)(uint32_t width, uint32_t height, uint32_t type);
+extern void     (*img_to_rgb2 _stdcall)(Image* img, void *rgb_data);
+extern Image*   (*img_to_rgb _stdcall)(Image* img);
+extern bool     (*img_flip _stdcall)(Image* img, uint32_t flip);
+extern bool     (*img_flip_layer _stdcall)(Image *img, uint32_t flip);
+extern bool     (*img_rotate _stdcall)(Image *img, uint32_t rotate);
+extern bool     (*img_rotate_layer _stdcall)(Image* data, uint32_t rotate);
+extern void     (*img_draw _stdcall)(Image *img, uint32_t x, uint32_t y, uint32_t w, uint32_t h, uint32_t xoff,  uint32_t yoff);
+extern int32_t  (*img_count _stdcall)(Image *img);
+extern bool     (*img_destroy _stdcall)(Image *img);
+extern bool     (*img_destroy_layer _stdcall)(Image* img);
+extern Image*   (*img_blend _stdcall)(Image* dst, Image* src, uint32_t out_x, uint32_t out_y, uint32_t in_x, uint32_t in_y, uint32_t width, uint32_t height); 
+extern Image*   (*img_convert _stdcall)(Image *src, Image *dst, uint32_t dst_type, uint32_t, uint32_t); 
+extern Image*   (*img_resize_data _stdcall)(Image *src, uint32_t width, uint32_t height);
+extern Image*   (*img_scale _stdcall)(Image* src, uint32_t crop_x, uint32_t crop_y, uint32_t crop_width, uint32_t crop_height, Image* dst, uint32_t scale_type, uint32_t inter, uint32_t new_width, uint32_t new_height);
+
+void img_fill_color(Image* img, uint32_t width, uint32_t height, uint32_t color){
+    for (uint32_t i = 0; i < width*height; i++) {
+        img->Data[i] = color;
+    }
+}
 
 #endif /* KOLIBRI_LIBIMG_H */

programs/develop/ktcc/trunk/samples/build_all.sh

@@ -10,7 +10,7 @@
 ../tcc clayer/rasterworks.c -lck -lrasterworks -o /tmp0/1/rasterworks
 ../tcc clayer/boxlib.c -lck -lbox -o /tmp0/1/boxlib_ex
 ../tcc clayer/libimg.c -lck -limg -o /tmp0/1/libimg_ex
-cp clayer/kolibrios.jpg /tmp0/1/kolibrios.jpg
+cp clayer/logo.png /tmp0/1/logo.png
 ../tcc clayer/dialog.c -lck -ldialog -o /tmp0/1/dialog_ex
 ../tcc dir_example.c -lck -o /tmp0/1/dir_example
 ../tcc net/tcpsrv_demo.c -lck -o /tmp0/1/tcpsrv_demo

programs/develop/ktcc/trunk/samples/clayer/libimg.c

@@ -1,86 +1,97 @@
+/* Written by turbocat2001 (Logaev Maxim) */
+
 #include <stdio.h>
 #include <stdlib.h>
-#include <string.h>
 #include <stddef.h>
 #include <clayer/libimg.h>
 #include <kos32sys1.h>
 
-struct kolibri_system_colors sys_color_table;
+#define NEW_IMG_H 128 
+#define NEW_IMG_W 128
 
-char path[4096];
-char* picture;
-int x_size = 200, y_size = 150;
+#define IMG_H 256
+#define IMG_W 256
 
-char* load_file_inmem(char* fname, int32_t* read_sz)
-{
+Image *image_blend; // Create image struct
+
+struct kolibri_system_colors sys_color_table;  // Create system colors table
+
+char* load_img(char* fname, int32_t* read_sz){  // Image file upload function
     FILE *f = fopen(fname, "rb");
     if (!f) {
         printf("Can't open file: %s\n", fname);
+        exit(0);
     }
     if (fseek(f, 0, SEEK_END)) {
         printf("Can't SEEK_END file: %s\n", fname);
+        exit(0);
     }
     int filesize = ftell(f);
     rewind(f);
     char* fdata = malloc(filesize);
     if(!fdata) {
         printf("No memory for file %s\n", fname);
+        exit(0);
     }
     *read_sz = fread(fdata, 1, filesize, f);
     if (ferror(f)) {
         printf("Error reading file %s\n", fname);
+        exit(0);
     }
     fclose(f);
-
     return fdata;
 }
 
-void draw_window()
-{
+void DrawGUI(){
     BeginDraw();
-	DrawWindow(10, 40, x_size + 50, y_size + 50, "Libimg", sys_color_table.work_area, 0x34);
-	
-	// Draw Picture
-	draw_bitmap(picture, 10, 10, x_size, y_size);
-	
+	DrawWindow(10, 40, (IMG_W+NEW_IMG_W)+50, IMG_H+50, "Libimg", sys_color_table.work_area, 0x34);
+	img_draw(image_blend, 10, 10, IMG_W*2, IMG_H , 0, 0);  // Draw blended image to window
     EndDraw();
 }
 
-int main()
-{
-    if (kolibri_libimg_init() == -1)
-    {
+int main(){
+    if (kolibri_libimg_init() == -1){
 		printf("Error loading lib_img.obj\n");
+        exit(0);
 	}
-
-    // Load Image 
-    const int icon_rgb_size = x_size * y_size;
-    char *image_data,
-         *filedata;
+	
+	get_system_colors(&sys_color_table); // Get system colors theme
+    set_event_mask(0xC0000027);
     
-    strcpy(path, "kolibrios.jpg"); // Filename
-    int32_t read_bytes;
-    filedata = load_file_inmem(path, &read_bytes);
-    picture = malloc(icon_rgb_size * 3);
-    image_data = img_decode(filedata, read_bytes, 0); 
-    img_to_rgb2(image_data, picture);
-    img_destroy(image_data);
-    free(filedata);
-	// End Load Image
-
-	get_system_colors(&sys_color_table);
-    set_event_mask(0xC0000027);
-
-    while (1) {
-		switch(get_os_event())
-		{
+    uint32_t img_size; 
+    void *file_data = load_img("logo.png", &img_size); // Get RAW data and size 
+    
+    Image* image = img_decode(file_data, img_size, 0); // Decode RAW data to Image data
+    
+    if (image->Type != IMAGE_BPP32) { 
+        image = img_convert(image, NULL, IMAGE_BPP32, 0, 0); // Convert image to format BPP32
+        if (!image) {
+             printf("Сonvert error!: \n");  
+             exit(0);
+        }
+    }
+    
+    image_blend = img_create(IMG_W+NEW_IMG_W, IMG_H, IMAGE_BPP32);  // Create an empty layer
+    img_fill_color(image_blend, IMG_W+NEW_IMG_W, IMG_H, sys_color_table.work_area); // Fill the layer with one color
+    img_blend(image_blend, image, 0, 0, 0, 0, IMG_W, IMG_H);  // Blending images to display the alpha channel. 
+    /* Reduce image size from 256x256 to 128x128 */
+    image = img_scale(image, 0, 0, IMG_W, IMG_H, NULL, LIBIMG_SCALE_STRETCH , LIBIMG_INTER_BILINEAR, NEW_IMG_W, NEW_IMG_H);
+    img_blend(image_blend, image, 256, 0, 0, 0, NEW_IMG_W, NEW_IMG_H); 
+    img_destroy(image);  // Destroy image structure
+    free(file_data);  // Free allocated file_data buffer 
+    
+    /* Main event loop */
+    while (1) {         
+		switch(get_os_event()){
 			case KOLIBRI_EVENT_REDRAW:
-				draw_window();
+				DrawGUI();
 				break;
 			case KOLIBRI_EVENT_BUTTON:
-				if (get_os_button() == 1) exit(0);
-				break;
-		}
-	}
-	return 0;
+				if (get_os_button() == 1){
+                    return 0;
+                }
+				break;
+        }
+	}
+	exit(0);
 }