/**
* gif的转换，gif有1-8bits,所以独立出来
* @param map 调色板
* @param depth 色深
* @param row_buffer row buffer
* @param width 图片宽度
* @param dest rgb565目标缓存区
*/
void gif_convert_irgb_to_rgb565(Image *image,UINT16 depth,UINT8* row_buffer,UINT32 current_height,UINT8* data_source)
{
UINT32 i,index;
UINT8* dest;
UINT32 width=image->width,found_index;
RGBMap * map = &image->rgb;
for(i=0;i<image->new_height;i++){
if(current_height == height_index[i]){ //找到则这行是有用的
found_index = i;
break;
}
}
if(i==image->new_height)
return; // 这行在新行中没被映射到
dest = rgb_row_buffer; //转换成rgb row buffer
if(depth>=1 && depth<=8){
for(i=0;i<width;i++){
index = row_buffer[i];
*(UINT16*)dest = RGB_TO_565(map->red[index],map->green[index],map->blue[index]);
dest += 2;
}
}
__resize_image(image,current_height,found_index,rgb_row_buffer,data_source);
return;
}
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "BaseView.h"
#include "defines.h"
/**
* Base class for a display view
*/
const uint16_t LINE_GRAY = RGB_TO_565(150, 150, 150);
//! Constructor
BaseView::BaseView()
: m_active(false)
{
}
//! Destructor
BaseView::~BaseView() {
}
//! This view is now enabled and displayed
void BaseView::activate() {
m_active = true;
static void __convert_irgb_to_rgb565(Image *image,UINT16 depth,UINT8* row_buffer,UINT8 *output_row_buffer)
{
INT32 i, j, index, width;
UINT8 r,g,b,tmp;
RGBMap *map = &image->rgb;
UINT8 * dest = output_row_buffer;
width = image->width;
switch(depth){
case 1:
{
int c,d;
d = width / 8;
c = width % 8;
for(i=0;i<d;i++){
tmp = row_buffer[i];
for(j=0;j<8;j++){
index = (tmp & 0x80)>>7;
tmp = tmp<<1;
*(UINT16*)(dest+j*2) = RGB_TO_565(map->red[index],map->green[index],map->blue[index]);
}
dest += 16;
}
if(c){
tmp = row_buffer[i];
for(j=0;j<c;j++){
index = (tmp & 0x80)>>7;
tmp = tmp<<1;
*(UINT16*)(dest+j*2) = RGB_TO_565(map->red[index],map->green[index],map->blue[index]);
}
dest += 2*c;
}
break;
}
case 4:
{
int c,d;
d = width / 2;
c = width % 2;
for(i=0;i<d;i++){
tmp = row_buffer[i];
index = tmp >> 4;
r = map->red[index]>>3;
g = map->green[index]>>2;
b = map->blue[index]>>3;
*(UINT16*)dest = (g<<5)+(r<<11)+b;
dest += 2;
index = tmp & 0xF;
*(UINT16*)dest = RGB_TO_565(map->red[index],map->green[index],map->blue[index]);
dest += 2;
}
if(c){
tmp = row_buffer[i];
index = tmp >> 4;
*(UINT16*)dest = RGB_TO_565(map->red[index],map->green[index],map->blue[index]);
dest += 2;
}
break;
}
case 5: // 4 bit rle，由于读取时编码不同，所以采用5来单独处理这个case
for(i=0;i<width;i++){
index = row_buffer[i]&0xf;
*(UINT16*)dest = RGB_TO_565(map->red[index],map->green[index],map->blue[index]);
dest += 2;
}
break;
case 8:
for(i=0;i<width;i++){
index = row_buffer[i];
*(UINT16*)dest = RGB_TO_565(map->red[index],map->green[index],map->blue[index]);
dest += 2;
}
break;
case 16:
for(i=0;i<width;i++){
index = 2*i;
*dest = *(row_buffer+2*i);
*(dest+1) = *(row_buffer+2*i+1);
dest +=2;
}
break;
case 24:
for(i=0;i<width;i++){
index = 3*i;
*(UINT16*)dest = RGB_TO_565(row_buffer[index+2],row_buffer[index+1],row_buffer[index]);
dest += 2;
}
break;
default:
return;
}
}
/**
* jpg的转换，jpeg只有8bit和24bit两种，因为24bit是RGB ,而BMP是BGR所以要分开。
* @param map 调色板
* @param depth 色深
* @param row_buffer row buffer
* @param width 图片宽度
* @param dest rgb565目标缓存区
*/
void jpg_convert_irgb_to_rgb565(Image *image, UINT16 depth, UINT8* row_buffer, UINT32 current_height, UINT8* data_source, BOOL smooth)
{
UINT32 i,index;
UINT8* dest;
UINT32 width = image->width,found_index;
RGBMap * map = &image->rgb;
if(depth == 24 && smooth == TRUE){
if(need_next_line == 0){
for(i = 0;i < image->new_height;i++){
if(current_height == height_index[i]){ //找到则这行是有用的
found_index = i;
if((i < image->new_height - 1) &&
(height_index[i+1] > current_height+1)){
__jpeg_resize_image(image,row_buffer,rgb_row_buffer2,smooth);
need_next_line = 1;
last_found_index = i;
return;
}
break;
}
}
if(i == image->new_height)
return; // 这行在新行中没被映射到
}
__jpeg_resize_image(image, row_buffer, rgb_row_buffer, smooth);
if(need_next_line)
dest = data_source + image->new_width * 2 * last_found_index;
else
dest = data_source + image->new_width * 2 * found_index;
for(i = 0;i < image->new_width;i++){
index = 3 * i;
if(need_next_line){
*(UINT16*)dest =
RGB_TO_565((rgb_row_buffer2[index]/2 + rgb_row_buffer[index]/2),
(rgb_row_buffer2[index+1]/2 + rgb_row_buffer[index+1]/2),
(rgb_row_buffer2[index+2]/2 + rgb_row_buffer[index+2]/2));
}
else{
*(UINT16*)dest =
RGB_TO_565(rgb_row_buffer[index],
rgb_row_buffer[index + 1],
rgb_row_buffer[index + 2]);
}
dest += 2;
}
if(need_next_line) need_next_line=0;
return;
}
else if(depth == 24 && smooth == FALSE){
for(i = 0;i < image->new_height; i++){
if(current_height == height_index[i]){ //找到则这行是有用的
found_index = i;
break;
}
}
if(i==image->new_height)
return; // 这行在新行中没被映射到
__jpeg_resize_image(image,row_buffer,rgb_row_buffer,smooth);
// memcpy(rgb_row_buffer, row_buffer, image->new_width * 2);
dest = data_source + image->new_width * 2 * found_index;
for(i = 0;i < image->new_width;i++){
index = 3 * i;
*(UINT16*)dest =
RGB_TO_565(rgb_row_buffer[index],rgb_row_buffer[index+1],rgb_row_buffer[index+2]);
dest += 2;
}
return;
}
else if(depth == 8){
for(i=0;i<image->new_height;i++){
if(current_height == height_index[i]){ //找到则这行是有用的
found_index = i;
break;
}
}
if(i==image->new_height)
return; // 这行在新行中没被映射到
dest = rgb_row_buffer; //转换成rgb row buffer
for(i=0;i<width;i++){
index = row_buffer[i];
*(UINT16*)dest = RGB_TO_565(map->red[index],map->green[index],map->blue[index]);
dest += 2;
}
__resize_image(image,current_height,found_index,rgb_row_buffer,data_source);
return;
}
}
