246 lines
8.2 KiB
C++
246 lines
8.2 KiB
C++
#include "Internal.h"
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#include "modules/DFSDL.h"
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#include "modules/Textures.h"
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#include "Debug.h"
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#include "PluginManager.h"
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#include "df/enabler.h"
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#include <SDL_surface.h>
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using df::global::enabler;
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using namespace DFHack;
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using namespace DFHack::DFSDL;
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namespace DFHack {
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DBG_DECLARE(core, textures, DebugCategory::LINFO);
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}
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static bool g_loaded = false;
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static long g_num_dfhack_textures = 0;
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static long g_dfhack_logo_texpos_start = -1;
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static long g_green_pin_texpos_start = -1;
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static long g_red_pin_texpos_start = -1;
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static long g_icons_texpos_start = -1;
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static long g_on_off_texpos_start = -1;
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static long g_pathable_texpos_start = -1;
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static long g_unsuspend_texpos_start = -1;
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static long g_control_panel_texpos_start = -1;
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static long g_thin_borders_texpos_start = -1;
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static long g_medium_borders_texpos_start = -1;
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static long g_bold_borders_texpos_start = -1;
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static long g_panel_borders_texpos_start = -1;
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static long g_window_borders_texpos_start = -1;
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// Converts an arbitrary Surface to something like the display format
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// (32-bit RGBA), and converts magenta to transparency if convert_magenta is set
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// and the source surface didn't already have an alpha channel.
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// It also deletes the source surface.
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//
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// It uses the same pixel format (RGBA, R at lowest address) regardless of
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// hardware.
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SDL_Surface * canonicalize_format(SDL_Surface *src) {
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SDL_PixelFormat fmt;
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fmt.palette = NULL;
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fmt.BitsPerPixel = 32;
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fmt.BytesPerPixel = 4;
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fmt.Rloss = fmt.Gloss = fmt.Bloss = fmt.Aloss = 0;
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#if SDL_BYTEORDER == SDL_BIG_ENDIAN
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fmt.Rshift = 24; fmt.Gshift = 16; fmt.Bshift = 8; fmt.Ashift = 0;
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#else
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fmt.Rshift = 0; fmt.Gshift = 8; fmt.Bshift = 16; fmt.Ashift = 24;
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#endif
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fmt.Rmask = 255 << fmt.Rshift;
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fmt.Gmask = 255 << fmt.Gshift;
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fmt.Bmask = 255 << fmt.Bshift;
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fmt.Amask = 255 << fmt.Ashift;
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SDL_Surface *tgt = DFSDL_ConvertSurface(src, &fmt, SDL_SWSURFACE);
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DFSDL_FreeSurface(src);
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for (int x = 0; x < tgt->w; ++x) {
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for (int y = 0; y < tgt->h; ++y) {
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Uint8* p = (Uint8*)tgt->pixels + y * tgt->pitch + x * 4;
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if (p[3] == 0) {
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for (int c = 0; c < 3; c++) {
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p[c] = 0;
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}
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}
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}
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}
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return tgt;
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}
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const uint32_t TILE_WIDTH_PX = 8;
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const uint32_t TILE_HEIGHT_PX = 12;
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static size_t load_textures(color_ostream & out, const char * fname,
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long *texpos_start,
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int tile_w = TILE_WIDTH_PX,
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int tile_h = TILE_HEIGHT_PX) {
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SDL_Surface *s = DFIMG_Load(fname);
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if (!s) {
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out.printerr("unable to load textures from '%s'\n", fname);
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return 0;
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}
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s = canonicalize_format(s);
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int dimx = s->w / tile_w;
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int dimy = s->h / tile_h;
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long count = 0;
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for (int y = 0; y < dimy; y++) {
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for (int x = 0; x < dimx; x++) {
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SDL_Surface *tile = DFSDL_CreateRGBSurface(0, // SDL_SWSURFACE
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tile_w, tile_h, 32,
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s->format->Rmask, s->format->Gmask, s->format->Bmask,
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s->format->Amask);
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SDL_Rect vp;
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vp.x = tile_w * x;
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vp.y = tile_h * y;
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vp.w = tile_w;
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vp.h = tile_h;
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DFSDL_UpperBlit(s, &vp, tile, NULL);
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if (!count++)
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*texpos_start = enabler->textures.raws.size();
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enabler->textures.raws.push_back(tile);
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}
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}
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DFSDL_FreeSurface(s);
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DEBUG(textures,out).print("loaded %ld textures from '%s'\n", count, fname);
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return count;
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}
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// DFHack could conceivably be loaded at any time, so we need to be able to
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// handle loading textures before or after a world is loaded.
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// If a world is already loaded, then append our textures to the raws. they'll
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// be freed when the world is unloaded and we'll reload when we get to the title
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// screen. If it's pre-world, append our textures and then adjust the "init"
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// texture count so our textures will no longer be freed when worlds are
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// unloaded.
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//
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void Textures::init(color_ostream &out) {
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if (!enabler)
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return;
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auto & textures = enabler->textures;
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long num_textures = textures.raws.size();
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if (num_textures <= g_dfhack_logo_texpos_start)
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g_loaded = false;
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if (g_loaded)
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return;
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bool is_pre_world = num_textures == textures.init_texture_size;
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g_num_dfhack_textures = load_textures(out, "hack/data/art/dfhack.png",
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&g_dfhack_logo_texpos_start);
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g_num_dfhack_textures += load_textures(out, "hack/data/art/green-pin.png",
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&g_green_pin_texpos_start);
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g_num_dfhack_textures += load_textures(out, "hack/data/art/red-pin.png",
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&g_red_pin_texpos_start);
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g_num_dfhack_textures += load_textures(out, "hack/data/art/icons.png",
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&g_icons_texpos_start);
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g_num_dfhack_textures += load_textures(out, "hack/data/art/on-off.png",
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&g_on_off_texpos_start);
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g_num_dfhack_textures += load_textures(out, "hack/data/art/pathable.png",
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&g_pathable_texpos_start, 32, 32);
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g_num_dfhack_textures += load_textures(out, "hack/data/art/unsuspend.png",
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&g_unsuspend_texpos_start, 32, 32);
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g_num_dfhack_textures += load_textures(out, "hack/data/art/control-panel.png",
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&g_control_panel_texpos_start);
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g_num_dfhack_textures += load_textures(out, "hack/data/art/border-thin.png",
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&g_thin_borders_texpos_start);
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g_num_dfhack_textures += load_textures(out, "hack/data/art/border-medium.png",
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&g_medium_borders_texpos_start);
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g_num_dfhack_textures += load_textures(out, "hack/data/art/border-bold.png",
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&g_bold_borders_texpos_start);
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g_num_dfhack_textures += load_textures(out, "hack/data/art/border-panel.png",
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&g_panel_borders_texpos_start);
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g_num_dfhack_textures += load_textures(out, "hack/data/art/border-window.png",
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&g_window_borders_texpos_start);
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DEBUG(textures,out).print("loaded %ld textures\n", g_num_dfhack_textures);
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if (is_pre_world)
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textures.init_texture_size += g_num_dfhack_textures;
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// NOTE: when GL modes are supported, we'll have to re-upload textures here
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g_loaded = true;
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}
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// It's ok to leave NULLs in the raws list (according to usage in g_src)
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void Textures::cleanup() {
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if (!g_loaded)
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return;
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auto & textures = enabler->textures;
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auto &raws = textures.raws;
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size_t texpos_end = g_dfhack_logo_texpos_start + g_num_dfhack_textures - 1;
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for (size_t idx = g_dfhack_logo_texpos_start; idx <= texpos_end; ++idx) {
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DFSDL_FreeSurface((SDL_Surface *)raws[idx]);
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raws[idx] = NULL;
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}
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if (g_dfhack_logo_texpos_start == textures.init_texture_size - g_num_dfhack_textures)
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textures.init_texture_size -= g_num_dfhack_textures;
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g_loaded = false;
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g_num_dfhack_textures = 0;
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g_dfhack_logo_texpos_start = -1;
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}
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long Textures::getDfhackLogoTexposStart() {
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return g_dfhack_logo_texpos_start;
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}
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long Textures::getGreenPinTexposStart() {
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return g_green_pin_texpos_start;
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}
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long Textures::getRedPinTexposStart() {
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return g_red_pin_texpos_start;
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}
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long Textures::getIconsTexposStart() {
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return g_icons_texpos_start;
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}
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long Textures::getOnOffTexposStart() {
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return g_on_off_texpos_start;
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}
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long Textures::getMapPathableTexposStart() {
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return g_pathable_texpos_start;
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}
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long Textures::getMapUnsuspendTexposStart() {
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return g_unsuspend_texpos_start;
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}
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long Textures::getControlPanelTexposStart() {
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return g_control_panel_texpos_start;
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}
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long Textures::getThinBordersTexposStart() {
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return g_thin_borders_texpos_start;
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}
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long Textures::getMediumBordersTexposStart() {
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return g_medium_borders_texpos_start;
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}
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long Textures::getBoldBordersTexposStart() {
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return g_bold_borders_texpos_start;
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}
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long Textures::getPanelBordersTexposStart() {
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return g_panel_borders_texpos_start;
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}
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long Textures::getWindowBordersTexposStart() {
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return g_window_borders_texpos_start;
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}
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