Go to the documentation of this file.00001
00002
00003
00004
00005
00006
00007
00008
00009
00012 #include "../stdafx.h"
00013 #include "../zoom_func.h"
00014 #include "../settings_type.h"
00015 #include "../core/math_func.hpp"
00016 #include "8bpp_optimized.hpp"
00017
00019 static FBlitter_8bppOptimized iFBlitter_8bppOptimized;
00020
00021 void Blitter_8bppOptimized::Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom)
00022 {
00023
00024 const SpriteData *sprite_src = (const SpriteData *)bp->sprite;
00025 uint offset = sprite_src->offset[zoom];
00026
00027
00028 const uint8 *src = sprite_src->data + offset;
00029 uint8 *dst_line = (uint8 *)bp->dst + bp->top * bp->pitch + bp->left;
00030
00031
00032 for (int y = 0; y < bp->skip_top; y++) {
00033 for (;;) {
00034 uint trans = *src++;
00035 uint pixels = *src++;
00036 if (trans == 0 && pixels == 0) break;
00037 src += pixels;
00038 }
00039 }
00040
00041 const uint8 *src_next = src;
00042
00043 for (int y = 0; y < bp->height; y++) {
00044 uint8 *dst = dst_line;
00045 dst_line += bp->pitch;
00046
00047 uint skip_left = bp->skip_left;
00048 int width = bp->width;
00049
00050 for (;;) {
00051 src = src_next;
00052 uint trans = *src++;
00053 uint pixels = *src++;
00054 src_next = src + pixels;
00055 if (trans == 0 && pixels == 0) break;
00056 if (width <= 0) continue;
00057
00058 if (skip_left != 0) {
00059 if (skip_left < trans) {
00060 trans -= skip_left;
00061 skip_left = 0;
00062 } else {
00063 skip_left -= trans;
00064 trans = 0;
00065 }
00066 if (skip_left < pixels) {
00067 src += skip_left;
00068 pixels -= skip_left;
00069 skip_left = 0;
00070 } else {
00071 src += pixels;
00072 skip_left -= pixels;
00073 pixels = 0;
00074 }
00075 }
00076 if (skip_left != 0) continue;
00077
00078
00079 dst += trans;
00080 width -= trans;
00081 if (width <= 0 || pixels == 0) continue;
00082 pixels = min<uint>(pixels, (uint)width);
00083 width -= pixels;
00084
00085 switch (mode) {
00086 case BM_COLOUR_REMAP: {
00087 const uint8 *remap = bp->remap;
00088 do {
00089 uint m = remap[*src];
00090 if (m != 0) *dst = m;
00091 dst++; src++;
00092 } while (--pixels != 0);
00093 break;
00094 }
00095
00096 case BM_TRANSPARENT: {
00097 const uint8 *remap = bp->remap;
00098 src += pixels;
00099 do {
00100 *dst = remap[*dst];
00101 dst++;
00102 } while (--pixels != 0);
00103 break;
00104 }
00105
00106 default:
00107 memcpy(dst, src, pixels);
00108 dst += pixels; src += pixels;
00109 break;
00110 }
00111 }
00112 }
00113 }
00114
00115 Sprite *Blitter_8bppOptimized::Encode(const SpriteLoader::Sprite *sprite, AllocatorProc *allocator)
00116 {
00117
00118 uint memory = sizeof(SpriteData);
00119
00120 ZoomLevel zoom_min;
00121 ZoomLevel zoom_max;
00122
00123 if (sprite->type == ST_FONT) {
00124 zoom_min = ZOOM_LVL_NORMAL;
00125 zoom_max = ZOOM_LVL_NORMAL;
00126 } else {
00127 zoom_min = _settings_client.gui.zoom_min;
00128 zoom_max = _settings_client.gui.zoom_max;
00129 if (zoom_max == zoom_min) zoom_max = ZOOM_LVL_MAX;
00130 }
00131
00132 for (ZoomLevel i = zoom_min; i <= zoom_max; i++) {
00133 memory += sprite[i].width * sprite[i].height;
00134 }
00135
00136
00137 memory *= 5;
00138
00139
00140
00141
00142 static ReusableBuffer<byte> temp_buffer;
00143 SpriteData *temp_dst = (SpriteData *)temp_buffer.Allocate(memory);
00144 memset(temp_dst, 0, sizeof(*temp_dst));
00145 byte *dst = temp_dst->data;
00146
00147
00148 for (ZoomLevel i = zoom_min; i <= zoom_max; i++) {
00149
00150 uint offset = dst - temp_dst->data;
00151 temp_dst->offset[i] = offset;
00152
00153
00154 int scaled_height = sprite[i].height;
00155 int scaled_width = sprite[i].width;
00156
00157 for (int y = 0; y < scaled_height; y++) {
00158 uint trans = 0;
00159 uint pixels = 0;
00160 uint last_colour = 0;
00161 byte *count_dst = NULL;
00162
00163
00164 const SpriteLoader::CommonPixel *src = &sprite[i].data[y * sprite[i].width];
00165
00166 for (int x = 0; x < scaled_width; x++) {
00167 uint colour = src++->m;
00168
00169 if (last_colour == 0 || colour == 0 || pixels == 255) {
00170 if (count_dst != NULL) {
00171
00172 *count_dst = pixels;
00173 pixels = 0;
00174 count_dst = NULL;
00175 }
00176
00177 if (colour == 0 && trans != 255) {
00178 last_colour = 0;
00179 trans++;
00180 continue;
00181 }
00182
00183 *dst = trans;
00184 dst++;
00185 trans = 0;
00186
00187 count_dst = dst;
00188 dst++;
00189 }
00190 last_colour = colour;
00191 if (colour == 0) {
00192 trans++;
00193 } else {
00194 pixels++;
00195 *dst = colour;
00196 dst++;
00197 }
00198 }
00199
00200 if (count_dst != NULL) *count_dst = pixels;
00201
00202
00203 *dst = 0; dst++;
00204 *dst = 0; dst++;
00205 }
00206 }
00207
00208 uint size = dst - (byte *)temp_dst;
00209
00210
00211 assert(size < memory);
00212
00213
00214 Sprite *dest_sprite = (Sprite *)allocator(sizeof(*dest_sprite) + size);
00215
00216 dest_sprite->height = sprite->height;
00217 dest_sprite->width = sprite->width;
00218 dest_sprite->x_offs = sprite->x_offs;
00219 dest_sprite->y_offs = sprite->y_offs;
00220 memcpy(dest_sprite->data, temp_dst, size);
00221
00222 return dest_sprite;
00223 }