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ONScripter_image.cpp
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ONScripter_image.cpp
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/* -*- C++ -*-
*
* ONScripter_image.cpp - Image processing in ONScripter
*
* Copyright (c) 2001-2023 Ogapee. All rights reserved.
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "ONScripter.h"
#include <new>
#include "resize_image.h"
SDL_Surface* ONScripter::loadImage(char* filename, bool is_flipped, bool* has_alpha, int* location, unsigned char* alpha)
{
if (!filename) return NULL;
SDL_Surface* tmp = NULL;
if (location) *location = BaseReader::ARCHIVE_TYPE_NONE;
if (filename[0] == '>')
tmp = createRectangleSurface(filename, has_alpha, alpha);
else
tmp = createSurfaceFromFile(filename, has_alpha, location);
if (tmp == NULL) return NULL;
if (is_flipped) {
SDL_PixelFormat* fmt = tmp->format;
SDL_Surface* tmp2 = SDL_CreateRGBSurface(SDL_SWSURFACE, tmp->w, tmp->h,
fmt->BitsPerPixel, fmt->Rmask, fmt->Gmask, fmt->Bmask, fmt->Amask);
for (int y = 0; y < tmp->h; ++y) {
Uint32* src = (Uint32*)tmp->pixels + tmp->w * y;
Uint32* dst = (Uint32*)tmp2->pixels + tmp2->w * (y + 1) - 1;
for (int x = 0; x < tmp->w; x++)
*dst-- = *src++;
}
SDL_FreeSurface(tmp);
tmp = tmp2;
}
SDL_Surface* ret;
if ((tmp->w * tmp->format->BytesPerPixel == tmp->pitch) &&
(tmp->format->BitsPerPixel == image_surface->format->BitsPerPixel) &&
(tmp->format->Rmask == image_surface->format->Rmask) &&
(tmp->format->Gmask == image_surface->format->Gmask) &&
(tmp->format->Bmask == image_surface->format->Bmask) &&
(tmp->format->Amask == image_surface->format->Amask)) {
ret = tmp;
}
else {
ret = SDL_ConvertSurface(tmp, image_surface->format, SDL_SWSURFACE);
SDL_FreeSurface(tmp);
}
return ret;
}
SDL_Surface* ONScripter::createRectangleSurface(char* filename, bool* has_alpha, unsigned char* alpha)
{
int c = 1, w = 0, h = 0;
bool decimal_flag = false;
while (filename[c] != 0x0a && filename[c] != 0x00) {
if (!decimal_flag && filename[c] >= '0' && filename[c] <= '9')
w = w * 10 + filename[c] - '0';
if (filename[c] == '.') decimal_flag = true;
if (filename[c] == ',') {
c++;
break;
}
c++;
}
decimal_flag = false;
while (filename[c] != 0x0a && filename[c] != 0x00) {
if (!decimal_flag && filename[c] >= '0' && filename[c] <= '9')
h = h * 10 + filename[c] - '0';
if (filename[c] == '.') decimal_flag = true;
if (filename[c] == ',') {
c++;
break;
}
c++;
}
while (filename[c] == ' ' || filename[c] == '\t') c++;
int n = 0, c2 = c;
while (filename[c] == '#') {
uchar3 col;
readColor(&col, filename + c);
n++;
c += 7;
while (filename[c] == ' ' || filename[c] == '\t') c++;
}
SDL_PixelFormat* fmt = image_surface->format;
SDL_Surface* tmp = SDL_CreateRGBSurface(SDL_SWSURFACE, w, h,
fmt->BitsPerPixel, fmt->Rmask, fmt->Gmask, fmt->Bmask, fmt->Amask);
c = c2;
for (int i = 0; i < n; i++) {
uchar3 col;
readColor(&col, filename + c);
c += 7;
while (filename[c] == ' ' || filename[c] == '\t') c++;
SDL_Rect rect;
rect.x = w * i / n;
rect.y = 0;
rect.w = w * (i + 1) / n - rect.x;
if (i == n - 1) rect.w = w - rect.x;
rect.h = h;
SDL_FillRect(tmp, &rect, SDL_MapRGBA(tmp->format, col[0], col[1], col[2], alpha ? *alpha : 0xff));
}
if (has_alpha) {
if (fmt->Amask)
*has_alpha = true;
else
*has_alpha = false;
}
return tmp;
}
SDL_Surface* ONScripter::createSurfaceFromFile(char* filename, bool* has_alpha, int* location)
{
unsigned long length = script_h.cBR->getFileLength(filename);
if (length == 0) {
fprintf(stderr, " *** can't find file [%s] ***\n", filename);
return NULL;
}
if (filelog_flag)
script_h.findAndAddLog(script_h.log_info[ScriptHandler::FILE_LOG], filename, true);
// printf(" ... loading %s length %ld\n", filename, length );
mean_size_of_loaded_images += length * 6 / 5; // reserve 20% larger size
num_loaded_images++;
if (tmp_image_buf_length < mean_size_of_loaded_images / num_loaded_images) {
tmp_image_buf_length = mean_size_of_loaded_images / num_loaded_images;
if (tmp_image_buf) delete[] tmp_image_buf;
tmp_image_buf = NULL;
}
unsigned char* buffer = NULL;
if (length > tmp_image_buf_length) {
buffer = new (std::nothrow) unsigned char[length];
if (buffer == NULL) {
fprintf(stderr, "failed to load [%s] because file size [%lu] is too large.\n", filename, length);
return NULL;
}
}
else {
if (!tmp_image_buf) tmp_image_buf = new unsigned char[tmp_image_buf_length];
buffer = tmp_image_buf;
}
script_h.cBR->getFile(filename, buffer, location);
char* ext = strrchr(filename, '.');
SDL_RWops* src = SDL_RWFromMem(buffer, length);
int is_png = IMG_isPNG(src);
SDL_Surface* tmp = IMG_Load_RW(src, 0);
if (!tmp && ext && (!strcmp(ext + 1, "JPG") || !strcmp(ext + 1, "jpg"))) {
fprintf(stderr, " *** force-loading a JPG image [%s]\n", filename);
tmp = IMG_LoadJPG_RW(src);
}
if (tmp && has_alpha) {
if (tmp->format->Amask || is_png)
*has_alpha = true;
else
*has_alpha = false;
}
SDL_RWclose(src);
if (buffer != tmp_image_buf) delete[] buffer;
if (!tmp)
fprintf(stderr, " *** can't load file [%s] %s ***\n", filename, IMG_GetError());
return tmp;
}
// resize 32bit surface to 32bit surface
int ONScripter::resizeSurface(SDL_Surface* src, SDL_Surface* dst)
{
SDL_LockSurface(dst);
SDL_LockSurface(src);
Uint32* src_buffer = (Uint32*)src->pixels;
Uint32* dst_buffer = (Uint32*)dst->pixels;
/* size of tmp_buffer must be larger than 16 bytes */
size_t len = src->w * (src->h + 1) * 4 + 4;
if (resize_buffer_size < len) {
delete[] resize_buffer;
resize_buffer = new unsigned char[len];
resize_buffer_size = len;
}
resizeImage((unsigned char*)dst_buffer, dst->w, dst->h, dst->w * 4,
(unsigned char*)src_buffer, src->w, src->h, src->w * 4,
4, resize_buffer, src->w * 4, false);
SDL_UnlockSurface(src);
SDL_UnlockSurface(dst);
return 0;
}
#if defined(BPP16)
#define BLEND_PIXEL_MASK() \
{ \
Uint32 s1 = (*src1_buffer | *src1_buffer << 16) & 0x07e0f81f; \
Uint32 s2 = (*src2_buffer | *src2_buffer << 16) & 0x07e0f81f; \
Uint32 d = (s1 + ((s2 - s1) * alpha >> 5)) & 0x07e0f81f; \
*dst_buffer = d | d >> 16; \
}
#else
#define BLEND_PIXEL_MASK() \
{ \
Uint32 s1 = *src1_buffer & 0xff00ff; \
Uint32 d1 = (s1 + ((((*src2_buffer & 0xff00ff) - s1) * alpha) >> 8)); \
s1 = *src1_buffer & 0x00ff00; \
Uint32 d2 = (s1 + ((((*src2_buffer & 0x00ff00) - s1) * alpha) >> 8)); \
*dst_buffer = (d1 & 0xff00ff) | (d2 & 0x00ff00); \
}
// Originally, the above looks like this.
// mask1 = mask2 ^ 0xff;
// Uint32 mask_rb = (((*src1_buffer & 0xff00ff) * mask1 +
// (*src2_buffer & 0xff00ff) * mask2) >> 8) & 0xff00ff;
// Uint32 mask_g = (((*src1_buffer & 0x00ff00) * mask1 +
// (*src2_buffer & 0x00ff00) * mask2) >> 8) & 0x00ff00;
#endif
// alphaBlend
// dst: accumulation_surface
// src1: effect_src_surface
// src2: effect_dst_surface
void ONScripter::alphaBlend(SDL_Surface* mask_surface,
int trans_mode, Uint32 mask_value, SDL_Rect* clip)
{
SDL_Rect rect = screen_rect;
/* ---------------------------------------- */
/* clipping */
if (clip) {
if (AnimationInfo::doClipping(&rect, clip)) return;
}
/* ---------------------------------------- */
SDL_LockSurface(effect_src_surface);
SDL_LockSurface(effect_dst_surface);
if (accumulation_surface != effect_dst_surface)
SDL_LockSurface(accumulation_surface);
if (mask_surface) SDL_LockSurface(mask_surface);
ONSBuf* src1_buffer = (ONSBuf*)effect_src_surface->pixels + effect_src_surface->w * rect.y + rect.x;
ONSBuf* src2_buffer = (ONSBuf*)effect_dst_surface->pixels + effect_dst_surface->w * rect.y + rect.x;
ONSBuf* dst_buffer = (ONSBuf*)accumulation_surface->pixels + accumulation_surface->w * rect.y + rect.x;
SDL_PixelFormat* fmt = accumulation_surface->format;
Uint32 lowest_mask;
Uint8 lowest_loss;
if (fmt->Rmask < fmt->Bmask) {
lowest_mask = fmt->Rmask; // ABGR8888
lowest_loss = fmt->Rloss;
}
else {
lowest_mask = fmt->Bmask; // ARGB8888 or RGB565
lowest_loss = fmt->Bloss;
}
Uint32 overflow_mask;
if (trans_mode == ALPHA_BLEND_FADE_MASK)
overflow_mask = 0xffffffff;
else
overflow_mask = ~lowest_mask;
mask_value >>= lowest_loss;
if ((trans_mode == ALPHA_BLEND_FADE_MASK ||
trans_mode == ALPHA_BLEND_CROSSFADE_MASK) &&
mask_surface) {
for (int i = 0; i < rect.h; i++) {
ONSBuf* mask_buffer = (ONSBuf*)mask_surface->pixels + mask_surface->w * ((rect.y + i) % mask_surface->h);
for (int j = 0; j < rect.w; j++) {
int j2 = (rect.x + j) % mask_surface->w;
Uint32 alpha = 0;
Uint32 mask = *(mask_buffer + j2) & lowest_mask;
if (mask_value > mask) {
alpha = mask_value - mask;
if (alpha & overflow_mask) alpha = lowest_mask;
}
alpha++;
BLEND_PIXEL_MASK();
src1_buffer++;
src2_buffer++;
dst_buffer++;
}
src1_buffer += screen_width - rect.w;
src2_buffer += screen_width - rect.w;
dst_buffer += screen_width - rect.w;
}
}
else { // ALPHA_BLEND_CONST
Uint32 alpha = (mask_value & lowest_mask) + 1;
for (int i = 0; i < rect.h; i++) {
for (int j = 0; j < rect.w; j++) {
BLEND_PIXEL_MASK();
src1_buffer++;
src2_buffer++;
dst_buffer++;
}
src1_buffer += screen_width - rect.w;
src2_buffer += screen_width - rect.w;
dst_buffer += screen_width - rect.w;
}
}
if (mask_surface) SDL_UnlockSurface(mask_surface);
if (accumulation_surface != effect_dst_surface)
SDL_UnlockSurface(accumulation_surface);
SDL_UnlockSurface(effect_dst_surface);
SDL_UnlockSurface(effect_src_surface);
}
#define BLEND_PIXEL_TEXT_BPP16() \
{ \
Uint32 sa = (*src_buffer + 1) >> 3; \
if (sa != 0) { \
Uint32 d = (*dst_buffer | *dst_buffer << 16) & 0x07e0f81f; \
d = (d + (((src_color - d) * sa) >> 5)) & 0x07e0f81f; \
*dst_buffer = d | d >> 16; \
} \
}
#define BLEND_PIXEL_TEXT() \
{ \
Uint32 sa = *src_buffer; \
if (sa == 255) { \
*dst_buffer = src_color3; \
} \
else if (sa != 0) { \
sa++; \
Uint32 d = *dst_buffer & 0xff00ff; \
Uint32 d1 = (d + (((src_color1 - d) * sa) >> 8)); \
d = *dst_buffer & 0x00ff00; \
Uint32 d2 = (d + (((src_color2 - d) * sa) >> 8)); \
*dst_buffer = (d1 & 0xff00ff) | (d2 & 0x00ff00) | 0xff000000; \
} \
}
// alphaBlendText
// dst: ONSBuf surface (accumulation_surface)
// src: 8bit surface (TTF_RenderGlyph_Shaded())
void ONScripter::alphaBlendText(SDL_Surface* dst_surface, SDL_Rect dst_rect,
SDL_Surface* src_surface, SDL_Color& color, SDL_Rect* clip, bool rotate_flag)
{
int x2 = 0, y2 = 0;
SDL_Rect clipped_rect;
/* ---------------------------------------- */
/* 1st clipping */
if (clip) {
if (AnimationInfo::doClipping(&dst_rect, clip, &clipped_rect)) return;
x2 += clipped_rect.x;
y2 += clipped_rect.y;
}
/* ---------------------------------------- */
/* 2nd clipping */
SDL_Rect clip_rect;
clip_rect.x = clip_rect.y = 0;
clip_rect.w = dst_surface->w;
clip_rect.h = dst_surface->h;
if (AnimationInfo::doClipping(&dst_rect, &clip_rect, &clipped_rect)) return;
x2 += clipped_rect.x;
y2 += clipped_rect.y;
/* ---------------------------------------- */
SDL_LockSurface(dst_surface);
SDL_LockSurface(src_surface);
SDL_PixelFormat* fmt = dst_surface->format;
if (fmt->BitsPerPixel == 16) {
Uint32 src_color = (((color.r >> fmt->Rloss) << fmt->Rshift) |
((color.g >> fmt->Gloss) << fmt->Gshift) |
((color.b >> fmt->Bloss) << fmt->Bshift));
src_color = (src_color | src_color << 16) & 0x07e0f81f;
Uint16* dst_buffer = (Uint16*)dst_surface->pixels + dst_surface->w * dst_rect.y + dst_rect.x;
if (!rotate_flag) {
unsigned char* src_buffer = (unsigned char*)src_surface->pixels + src_surface->pitch * y2 + x2;
for (int i = 0; i < dst_rect.h; i++) {
for (int j = dst_rect.w; j != 0; j--) {
BLEND_PIXEL_TEXT_BPP16();
src_buffer++;
dst_buffer++;
}
src_buffer += src_surface->pitch - dst_rect.w;
dst_buffer += dst_surface->w - dst_rect.w;
}
}
else {
for (int i = 0; i < dst_rect.h; i++) {
unsigned char* src_buffer = (unsigned char*)src_surface->pixels + src_surface->pitch * (src_surface->h - x2 - 1) + y2 + i;
for (int j = dst_rect.w; j != 0; j--) {
BLEND_PIXEL_TEXT_BPP16();
src_buffer -= src_surface->pitch;
dst_buffer++;
}
dst_buffer += dst_surface->w - dst_rect.w;
}
}
}
else {
Uint32 src_color1 = (color.r << fmt->Rshift) | (color.b << fmt->Bshift);
Uint32 src_color2 = (color.g << fmt->Gshift);
Uint32 src_color3 = (0xff << fmt->Ashift) | src_color1 | src_color2;
Uint32* dst_buffer = (Uint32*)dst_surface->pixels + dst_surface->w * dst_rect.y + dst_rect.x;
if (!rotate_flag) {
unsigned char* src_buffer = (unsigned char*)src_surface->pixels + src_surface->pitch * y2 + x2;
for (int i = 0; i < dst_rect.h; i++) {
for (int j = dst_rect.w; j != 0; j--) {
BLEND_PIXEL_TEXT();
src_buffer++;
dst_buffer++;
}
src_buffer += src_surface->pitch - dst_rect.w;
dst_buffer += dst_surface->w - dst_rect.w;
}
}
else {
for (int i = 0; i < dst_rect.h; i++) {
unsigned char* src_buffer = (unsigned char*)src_surface->pixels + src_surface->pitch * (src_surface->h - x2 - 1) + y2 + i;
for (int j = dst_rect.w; j != 0; j--) {
BLEND_PIXEL_TEXT();
src_buffer -= src_surface->pitch;
dst_buffer++;
}
dst_buffer += dst_surface->w - dst_rect.w;
}
}
}
SDL_UnlockSurface(src_surface);
SDL_UnlockSurface(dst_surface);
}
void ONScripter::makeNegaSurface(SDL_Surface* surface, SDL_Rect& clip)
{
SDL_LockSurface(surface);
ONSBuf* buf = (ONSBuf*)surface->pixels + clip.y * surface->w + clip.x;
ONSBuf mask = surface->format->Rmask | surface->format->Gmask | surface->format->Bmask;
for (int i = clip.y; i < clip.y + clip.h; i++) {
for (int j = clip.x; j < clip.x + clip.w; j++)
*buf++ ^= mask;
buf += surface->w - clip.w;
}
SDL_UnlockSurface(surface);
}
void ONScripter::makeMonochromeSurface(SDL_Surface* surface, SDL_Rect& clip)
{
SDL_LockSurface(surface);
ONSBuf *buf = (ONSBuf*)surface->pixels + clip.y * surface->w + clip.x, c;
SDL_PixelFormat* fmt = surface->format;
for (int i = clip.y; i < clip.y + clip.h; i++) {
for (int j = clip.x; j < clip.x + clip.w; j++) {
c = ((((*buf & fmt->Rmask) >> fmt->Rshift) << fmt->Rloss) * 77 +
(((*buf & fmt->Gmask) >> fmt->Gshift) << fmt->Gloss) * 151 +
(((*buf & fmt->Bmask) >> fmt->Bshift) << fmt->Bloss) * 28) >>
8;
*buf++ = ((monocro_color_lut[c][0] >> fmt->Rloss) << surface->format->Rshift |
(monocro_color_lut[c][1] >> fmt->Gloss) << surface->format->Gshift |
(monocro_color_lut[c][2] >> fmt->Bloss) << surface->format->Bshift);
}
buf += surface->w - clip.w;
}
SDL_UnlockSurface(surface);
}
#define FILL_LAYER_ALPHA_BUF() \
{ \
for (int y = clip.y; y < clip.y + clip.h; y++) { \
unsigned char* p = layer_alpha_buf + screen_width * y + clip.x; \
for (int x = clip.w; x > 0; --x) *p++ = 0xff; \
} \
}
void ONScripter::refreshSurface(SDL_Surface* surface, SDL_Rect* clip_src, int refresh_mode)
{
if (refresh_mode == REFRESH_NONE_MODE) return;
SDL_Rect clip;
clip.x = clip.y = 0;
clip.w = surface->w;
clip.h = surface->h;
if (clip_src)
if (AnimationInfo::doClipping(&clip, clip_src)) return;
int i, top;
SDL_BlitSurface(bg_info.image_surface, &clip, surface, &clip);
if (!all_sprite_hide_flag) {
if (z_order < 10 && refresh_mode & REFRESH_SAYA_MODE)
top = 9;
else
top = z_order;
for (i = MAX_SPRITE_NUM - 1; i > top; i--) {
if (sprite_info[i].image_surface && sprite_info[i].visible) {
drawTaggedSurface(surface, &sprite_info[i], clip);
if (smpeg_info == &sprite_info[i])
FILL_LAYER_ALPHA_BUF();
}
}
}
if (!all_sprite_hide_flag) {
for (i = 0; i < 3; i++) {
if (human_order[2 - i] >= 0 && tachi_info[human_order[2 - i]].image_surface)
drawTaggedSurface(surface, &tachi_info[human_order[2 - i]], clip);
}
}
if (windowback_flag) {
if (nega_mode == 1) makeNegaSurface(surface, clip);
if (monocro_flag) makeMonochromeSurface(surface, clip);
if (nega_mode == 2) makeNegaSurface(surface, clip);
if (!all_sprite2_hide_flag) {
for (i = MAX_SPRITE2_NUM - 1; i >= 0; i--) {
if (sprite2_info[i].image_surface && sprite2_info[i].visible) {
drawTaggedSurface(surface, &sprite2_info[i], clip);
if (smpeg_info == &sprite2_info[i])
FILL_LAYER_ALPHA_BUF();
}
}
}
if (refresh_mode & REFRESH_SHADOW_MODE)
shadowTextDisplay(surface, clip);
if (refresh_mode & REFRESH_TEXT_MODE)
text_info.blendOnSurface(surface, 0, 0, clip, layer_alpha_buf);
}
if (!all_sprite_hide_flag) {
if (refresh_mode & REFRESH_SAYA_MODE)
top = 10;
else
top = 0;
for (i = z_order; i >= top; i--) {
if (sprite_info[i].image_surface && sprite_info[i].visible) {
drawTaggedSurface(surface, &sprite_info[i], clip);
if (smpeg_info == &sprite_info[i])
FILL_LAYER_ALPHA_BUF();
}
}
}
if (!windowback_flag) {
if (!all_sprite2_hide_flag) {
for (i = MAX_SPRITE2_NUM - 1; i >= 0; i--) {
if (sprite2_info[i].image_surface && sprite2_info[i].visible) {
drawTaggedSurface(surface, &sprite2_info[i], clip);
if (smpeg_info == &sprite2_info[i])
FILL_LAYER_ALPHA_BUF();
}
}
}
if (nega_mode == 1) makeNegaSurface(surface, clip);
if (monocro_flag) makeMonochromeSurface(surface, clip);
if (nega_mode == 2) makeNegaSurface(surface, clip);
}
if (!(refresh_mode & REFRESH_SAYA_MODE)) {
for (i = 0; i < MAX_PARAM_NUM; i++) {
if (bar_info[i])
drawTaggedSurface(surface, bar_info[i], clip);
}
for (i = 0; i < MAX_PARAM_NUM; i++) {
if (prnum_info[i])
drawTaggedSurface(surface, prnum_info[i], clip);
}
}
if (!windowback_flag) {
if (refresh_mode & REFRESH_SHADOW_MODE)
shadowTextDisplay(surface, clip);
if (refresh_mode & REFRESH_TEXT_MODE)
text_info.blendOnSurface(surface, 0, 0, clip, layer_alpha_buf);
}
if (refresh_mode & REFRESH_CURSOR_MODE && !textgosub_label) {
if (clickstr_state == CLICK_WAIT)
drawTaggedSurface(surface, &cursor_info[0], clip);
else if (clickstr_state == CLICK_NEWPAGE)
drawTaggedSurface(surface, &cursor_info[1], clip);
}
if (show_dialog_flag)
drawTaggedSurface(surface, &dialog_info, clip);
ButtonLink* bl = root_button_link.next;
while (bl) {
if (bl->show_flag > 0)
drawTaggedSurface(surface, bl->anim[bl->show_flag - 1], clip);
bl = bl->next;
}
}
void ONScripter::refreshSprite(int sprite_no, bool active_flag, int cell_no,
SDL_Rect* check_src_rect, SDL_Rect* check_dst_rect)
{
if (sprite_info[sprite_no].image_surface &&
(sprite_info[sprite_no].visible != active_flag ||
(cell_no >= 0 && sprite_info[sprite_no].current_cell != cell_no) ||
AnimationInfo::doClipping(check_src_rect, &sprite_info[sprite_no].pos) == 0 ||
AnimationInfo::doClipping(check_dst_rect, &sprite_info[sprite_no].pos) == 0)) {
if (cell_no >= 0)
sprite_info[sprite_no].setCell(cell_no);
sprite_info[sprite_no].visible = active_flag;
dirty_rect.add(sprite_info[sprite_no].pos);
}
}
void ONScripter::createBackground()
{
bg_info.num_of_cells = 1;
bg_info.trans_mode = AnimationInfo::TRANS_COPY;
bg_info.pos.x = 0;
bg_info.pos.y = 0;
bg_info.allocImage(screen_width, screen_height, texture_format);
if (!strcmp(bg_info.file_name, "white")) {
bg_info.color[0] = bg_info.color[1] = bg_info.color[2] = 0xff;
}
else if (!strcmp(bg_info.file_name, "black") ||
!strcmp(bg_info.file_name, "*bgcpy")) {
bg_info.color[0] = bg_info.color[1] = bg_info.color[2] = 0x00;
}
else if (bg_info.file_name[0] == '#') {
readColor(&bg_info.color, bg_info.file_name);
}
else {
AnimationInfo anim;
setStr(&anim.image_name, bg_info.file_name);
parseTaggedString(&anim);
anim.trans_mode = AnimationInfo::TRANS_COPY;
setupAnimationInfo(&anim);
bg_info.fill(0, 0, 0, 0xff);
if (anim.image_surface) {
SDL_Rect src_rect;
src_rect.x = src_rect.y = 0;
src_rect.w = anim.image_surface->w;
src_rect.h = anim.image_surface->h;
SDL_Rect dst_rect = {0, 0};
if (screen_width >= anim.image_surface->w) {
dst_rect.x = (screen_width - anim.image_surface->w) / 2;
}
else {
src_rect.x = (anim.image_surface->w - screen_width) / 2;
src_rect.w = screen_width;
}
if (screen_height >= anim.image_surface->h) {
dst_rect.y = (screen_height - anim.image_surface->h) / 2;
}
else {
src_rect.y = (anim.image_surface->h - screen_height) / 2;
src_rect.h = screen_height;
}
bg_info.copySurface(anim.image_surface, &src_rect, &dst_rect);
}
return;
}
bg_info.fill(bg_info.color[0], bg_info.color[1], bg_info.color[2], 0xff);
}