#include <stdio.h>
#include <stdlib.h>
+#include <epng.h> // savePNG need it
+
extern "C" {
#include <jpeglib.h>
#include <gif_lib.h>
unsigned char *pic_buffer=NULL;
+static unsigned char *conv24to32(unsigned char * orgin, int size, int background = 0)
+{
+ int s, d;
+ unsigned char *cr = new unsigned char[size * 4];
+ if (cr == NULL)
+ {
+ printf("[CONV32] Error: malloc\n");
+ return(orgin);
+ }
+
+ unsigned char alpha = 0x00;
+ if(background) alpha = 0xFF;
+
+ for (s = 0, d = 0 ; s < (size * 3); s += 3, d += 4 )
+ {
+ cr[d] = orgin[s];
+ cr[d+1] = orgin[s + 1];
+ cr[d+2] = orgin[s + 2];
+ cr[d+3] = alpha;
+ }
+ delete [] orgin;
+ return(cr);
+}
+
static unsigned char *simple_resize(unsigned char * orgin, int ox, int oy, int dx, int dy)
{
unsigned char *cr, *p, *l;
int i, j, k, ip;
- cr = new unsigned char[dx * dy * 3];
+ cr = new unsigned char[dx * dy * 4];
if (cr == NULL)
{
printf("[RESIZE] Error: malloc\n");
}
l = cr;
- for (j = 0; j < dy; j++,l += dx * 3)
+ for (j = 0; j < dy; j++,l += dx * 4)
{
- p = orgin + (j * oy / dy * ox * 3);
- for (i = 0, k = 0; i < dx; i++, k += 3)
+ p = orgin + (j * oy / dy * ox * 4);
+ for (i = 0, k = 0; i < dx; i++, k += 4)
{
- ip = i * ox / dx * 3;
+ ip = i * ox / dx * 4;
l[k] = p[ip];
l[k+1] = p[ip + 1];
l[k+2] = p[ip + 2];
+ l[k+3] = p[ip + 3];
}
}
delete [] orgin;
{
unsigned char *cr, *p, *q;
int i, j, k, l, xa, xb, ya, yb;
- int sq, r, g, b;
- cr = new unsigned char[dx * dy * 3];
+ int sq, r, g, b, a;
+ cr = new unsigned char[dx * dy * 4];
if (cr == NULL)
{
printf("[RESIZE] Error: malloc\n");
for (j = 0; j < dy; j++)
{
- for (i = 0; i < dx; i++, p += 3)
+ for (i = 0; i < dx; i++, p += 4)
{
xa = i * ox / dx;
ya = j * oy / dy;
yb = (j + 1) * oy / dy;
if (yb >= oy)
yb = oy - 1;
- for (l = ya, r = 0, g = 0, b = 0, sq = 0; l <= yb; l++)
+ for (l = ya, r = 0, g = 0, b = 0, a = 0, sq = 0; l <= yb; l++)
{
- q = orgin + ((l * ox + xa) * 3);
- for (k = xa; k <= xb; k++, q += 3, sq++)
+ q = orgin + ((l * ox + xa) * 4);
+ for (k = xa; k <= xb; k++, q += 4, sq++)
{
- r += q[0]; g += q[1]; b += q[2];
+ r += q[0]; g += q[1]; b += q[2]; a += q[3];
}
}
- p[0] = r / sq; p[1] = g / sq; p[2] = b / sq;
+ p[0] = r / sq; p[1] = g / sq; p[2] = b / sq; p[3] = a / sq;
}
}
delete [] orgin;
}
//---------------------------------------------------------------------------------------------
-
static int png_load(const char *filename, int *x, int *y)
{
static const png_color_16 my_background = {0, 0, 0, 0, 0};
png_read_info(png_ptr, info_ptr);
png_get_IHDR(png_ptr, info_ptr, &width, &height, &bit_depth, &color_type, &interlace_type, NULL, NULL);
- if (color_type == PNG_COLOR_TYPE_PALETTE)
- {
- png_set_palette_to_rgb(png_ptr);
- png_set_background(png_ptr, (png_color_16 *)&my_background, PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0);
- }
-
+ if ((color_type == PNG_COLOR_TYPE_PALETTE)||(color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)||(png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)))
+ png_set_expand(png_ptr);
+ if (bit_depth == 16)
+ png_set_strip_16(png_ptr);
if (color_type == PNG_COLOR_TYPE_GRAY || color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- {
png_set_gray_to_rgb(png_ptr);
- png_set_background(png_ptr, (png_color_16 *)&my_background, PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0);
- }
-
- if (color_type & PNG_COLOR_MASK_ALPHA)
- png_set_strip_alpha(png_ptr);
-
- if (bit_depth < 8) png_set_packing(png_ptr);
- if (bit_depth == 16) png_set_strip_16(png_ptr);
number_passes = png_set_interlace_handling(png_ptr);
png_read_update_info(png_ptr, info_ptr);
- if (width * 3 != png_get_rowbytes(png_ptr, info_ptr))
+ int bpp = png_get_rowbytes(png_ptr, info_ptr)/width;
+ if ((bpp !=4) && (bpp !=3))
{
eDebug("[PNG] Error processing");
return 0;
if (width * height > 1000000) // 1000x1000 or equiv.
{
- eDebug("[png_load] image size is %u x %u, which is \"too large\".", (unsigned int)width, (unsigned int)height);
+ eDebug("[png_load] image size is %d x %d, which is \"too large\".", width, height);
png_read_end(png_ptr, info_ptr);
png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp)NULL);
fclose(fh);
return 0;
}
- pic_buffer = new unsigned char[width * height * 3];
+ pic_buffer = new unsigned char[width * height * bpp];
*x=width;
*y=height;
for(pass = 0; pass < number_passes; pass++)
{
fbptr = (png_byte *)pic_buffer;
- for (i = 0; i < height; i++, fbptr += width * 3)
+ for (i = 0; i < height; i++, fbptr += width * bpp)
png_read_row(png_ptr, fbptr, NULL);
}
png_read_end(png_ptr, info_ptr);
png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp)NULL);
fclose(fh);
+ if (bpp == 3)
+ pic_buffer = conv24to32(pic_buffer, width * height, 1);
return 1;
}
if(cachefile.length())
{
- cache = true;
- if(jpeg_load(cachefile.c_str(), &ox, &oy))
+ if(png_load(cachefile.c_str(), &ox, &oy))
eDebug("[CACHEPIC] x-size=%d, y-size=%d", ox, oy);
}
{
switch(pic_id(filename.c_str()))
{
- case F_PNG: png_load(filename.c_str(), &ox, &oy); break;
- case F_JPEG: jpeg_load(filename.c_str(), &ox, &oy); break;
- case F_BMP: bmp_load(filename.c_str(), &ox, &oy); break;
- case F_GIF: gif_load(filename.c_str(), &ox, &oy); break;
+ case F_PNG: png_load(filename.c_str(), &ox, &oy);break;
+ case F_JPEG: jpeg_load(filename.c_str(), &ox, &oy);pic_buffer = conv24to32(pic_buffer, ox*oy, 1); break;
+ case F_BMP: bmp_load(filename.c_str(), &ox, &oy);pic_buffer = conv24to32(pic_buffer, ox*oy, 1); break;
+ case F_GIF: gif_load(filename.c_str(), &ox, &oy);pic_buffer = conv24to32(pic_buffer, ox*oy, 1); break;
default:
eDebug("[PIC] <format not supportet>");
return 0;
}
- eDebug("[FULLPIC] x-size=%d, y-size=%d", ox, oy);
-
if(pic_buffer==NULL)
return 0;
ox = imx;
oy = imy;
-
- if(cache)
- {
- jpeg_save(pic_buffer, cachefile.c_str(), 50, oy, ox);
- eDebug("[SAVEPIC] x-size=%d, y-size=%d", ox, oy);
- }
-
}
-
+ else cache = true;
result=new gPixmap(eSize(w, h), 32);
gSurface *surface = result->surface;
//eDebug("o_y=%d u_y=%d v_x=%d h_x=%d", o_y, u_y, v_x, h_x);
if(oy < h)
- for(a=0; a<(o_y*ox)+1; a++, nc+=4)
+ for(a=0; a<(o_y*ox); a++, nc+=4)
{
tmp_buffer=((unsigned char *)(surface->data)) + nc;
memcpy(tmp_buffer, clear, sizeof(clear));
}
-
+
for(a=0; a<oy; a++)
{
if(ox < w)
memcpy(tmp_buffer, clear, sizeof(clear));
}
- for(b=0; b<(ox*3); b+=3, nc+=4)
+ for(b=0; b<(ox*4); b+=4, nc+=4)
{
tmp_buffer=((unsigned char *)(surface->data)) + nc;
- tmp_buffer[3]=0xFF;
tmp_buffer[2]=pic_buffer[oc++];
tmp_buffer[1]=pic_buffer[oc++];
tmp_buffer[0]=pic_buffer[oc++];
+ tmp_buffer[3]=pic_buffer[oc++];
}
}
if(oy < h)
- for(a=0; a<(u_y*ox)+1; a++, nc+=4)
+ for(a=0; a<(u_y*ox); a++, nc+=4)
{
tmp_buffer=((unsigned char *)(surface->data)) + nc;
memcpy(tmp_buffer, clear, sizeof(clear));
delete [] pic_buffer;
+ if(cachefile.length() && !cache)
+ {
+ savePNG( cachefile.c_str(), result);
+ eDebug("[SAVEPIC] x-size=%d, y-size=%d", ox, oy);
+ }
+
return 0;
}
projects / vuplus_dvbapp / blobdiff