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texture.c
408 lines (357 loc) · 14.8 KB
/
texture.c
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/*
Copyright (c) 2017-2018 ByteBit
This file is part of BetterSpades.
BetterSpades 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 3 of the License, or
(at your option) any later version.
BetterSpades 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 BetterSpades. If not, see <http://www.gnu.org/licenses/>.
*/
#include "common.h"
#include "lodepng/lodepng.c"
struct texture texture_splash;
struct texture texture_minimap;
struct texture texture_gradient;
struct texture texture_health;
struct texture texture_block;
struct texture texture_grenade;
struct texture texture_ammo_semi;
struct texture texture_ammo_smg;
struct texture texture_ammo_shotgun;
struct texture texture_color_selection;
struct texture texture_zoom_semi;
struct texture texture_zoom_smg;
struct texture texture_zoom_shotgun;
struct texture texture_white;
struct texture texture_target;
struct texture texture_indicator;
struct texture texture_player;
struct texture texture_medical;
struct texture texture_intel;
struct texture texture_command;
struct texture texture_tracer;
struct texture texture_ui_wait;
struct texture texture_ui_join;
struct texture texture_ui_reload;
struct texture texture_ui_bg;
struct texture texture_ui_input;
struct texture texture_ui_box_empty;
struct texture texture_ui_box_check;
struct texture texture_ui_arrow;
struct texture texture_ui_arrow2;
struct texture texture_ui_flags;
struct texture texture_ui_alert;
static char* texture_flags[251] = {
"AD","AE","AF","AG","AI","AL","AM","AN","AO","AQ","AR","AS","AT","AU",
"AW","AX","AZ","BA","BB","BD","BE","BF","BG","BH","BI","BJ","BL","BM",
"BN","BO","BR","BS","BT","BV","BW","BY","BZ","CA","CC","CD","CF","CG",
"CH","CI","CK","CL","CM","CN","CO","CR","CS","CU","CV","CX","CY","CZ",
"DE","DJ","DK","DM","DO","DZ","EC","EE","EG","EH","ER","ES","ET","FI",
"FJ","FK","FM","FO","FR","FX","GA","GB","GD","GE","GF","GG","GH","GI",
"GL","GM","GN","GP","GQ","GR","GS","GT","GU","GW","GY","HK","HM","HN",
"HR","HT","HU","ID","IE","IL","IN","IO","IQ","IR","IS","IT","JE","JM",
"JO","JP","KE","KG","KH","KI","KM","KN","KP","KR","KW","KY","KZ","LA",
"LAN","LB","LC","LI","LK","LR","LS","LT","LU","LV","LY","MA","MC","MD",
"ME","MF","MG","MH","MK","ML","MM","MN","MO","MP","MQ","MR","MS","MT",
"MU","MV","MW","MX","MY","MZ","NA","NC","NE","NF","NG","NI","NL","NO",
"NP","NR","NU","NZ","OM","PA","PE","PF","PG","PH","PK","PL","PM","PN",
"PR","PS","PT","PW","PY","QA","RE","RO","RS","RU","RW","SA","SB","SC",
"SD","SE","SG","SH","SI","SJ","SK","SL","SM","SN","SO","SR","ST","SV",
"SY","SZ","TC","TD","TF","TG","TH","TJ","TK","TL","TM","TN","TO","TP",
"TR","TT","TV","TW","TZ","UA","UG","UM","US","UY","UZ","VA","VC","VE",
"VG","VI","VN","VU","WF","WS","XT","YE","YT","YU","ZA","ZM","ZW"
};
static int texture_flag_cmp(const void* a, const void* b) {
return strcmp(a,*(const void* const*)b);
}
void texture_flag_offset(const char* country, float* u, float* v) {
char** res = bsearch(country,texture_flags,251,sizeof(char*),texture_flag_cmp);
if(res) {
int i = res-texture_flags;
*u = (i%14)*(18.0F/256.0F);
*v = (i/14)*(12.0F/256.0F);
} else {
*u = 0.0F;
*v = 0.9375F;
}
}
void texture_filter(struct texture* t, int filter) {
glBindTexture(GL_TEXTURE_2D,t->texture_id);
switch(filter) {
case TEXTURE_FILTER_NEAREST:
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);
break;
case TEXTURE_FILTER_LINEAR:
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
break;
}
glBindTexture(GL_TEXTURE_2D,0);
}
int texture_create(struct texture* t, char* filename) {
int error = lodepng_decode32_file(&t->pixels,&t->width,&t->height,filename);
if(error) {
log_warn("Could not load texture (%u): %s",error,lodepng_error_text(error));
return 0;
}
texture_resize_pow2(t,0);
glGenTextures(1,&t->texture_id);
glBindTexture(GL_TEXTURE_2D,t->texture_id);
glTexImage2D(GL_TEXTURE_2D,0,GL_RGBA,t->width,t->height,0,GL_RGBA,GL_UNSIGNED_BYTE,t->pixels);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_REPEAT);
glBindTexture(GL_TEXTURE_2D,0);
}
int texture_create_buffer(struct texture* t, int width, int height, unsigned char* buff, int new) {
if(new)
glGenTextures(1,&t->texture_id);
t->width = width;
t->height = height;
t->pixels = buff;
texture_resize_pow2(t,max(width,height));
glBindTexture(GL_TEXTURE_2D,t->texture_id);
glTexImage2D(GL_TEXTURE_2D,0,GL_RGBA,t->width,t->height,0,GL_RGBA,GL_UNSIGNED_BYTE,t->pixels);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_REPEAT);
glBindTexture(GL_TEXTURE_2D,0);
}
void texture_delete(struct texture* t) {
if(t->pixels)
free(t->pixels);
glDeleteTextures(1,&t->texture_id);
}
void texture_draw_sector(struct texture* t, float x, float y, float w, float h, float u, float v, float us, float vs) {
glEnable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
glBindTexture(GL_TEXTURE_2D,t->texture_id);
float vertices[12] = {
x,y,
x,y-h,
x+w,y-h,
x,y,
x+w,y-h,
x+w,y
};
float texcoords[12] = {
u,v,
u,v+vs,
u+us,v+vs,
u,v,
u+us,v+vs,
u+us,v
};
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnableClientState(GL_VERTEX_ARRAY);
glTexCoordPointer(2,GL_FLOAT,0,texcoords);
glVertexPointer(2,GL_FLOAT,0,vertices);
glDrawArrays(GL_TRIANGLES,0,6);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
glBindTexture(GL_TEXTURE_2D,0);
glDisable(GL_BLEND);
glDisable(GL_TEXTURE_2D);
}
void texture_draw(struct texture* t, float x, float y, float w, float h) {
glEnable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
glBindTexture(GL_TEXTURE_2D,t->texture_id);
texture_draw_empty(x,y,w,h);
glBindTexture(GL_TEXTURE_2D,0);
glDisable(GL_BLEND);
glDisable(GL_TEXTURE_2D);
}
void texture_draw_rotated(struct texture* t, float x, float y, float w, float h, float angle) {
glEnable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
glBindTexture(GL_TEXTURE_2D,t->texture_id);
texture_draw_empty_rotated(x,y,w,h,angle);
glBindTexture(GL_TEXTURE_2D,0);
glDisable(GL_BLEND);
glDisable(GL_TEXTURE_2D);
}
void texture_draw_empty(float x, float y, float w, float h) {
float vertices[12] = {
x,y,
x,y-h,
x+w,y-h,
x,y,
x+w,y-h,
x+w,y
};
float texcoords[12] = {
0.0F,0.0F,
0.0F,1.0F,
1.0F,1.0F,
0.0F,0.0F,
1.0F,1.0F,
1.0F,0.0F
};
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnableClientState(GL_VERTEX_ARRAY);
glTexCoordPointer(2,GL_FLOAT,0,texcoords);
glVertexPointer(2,GL_FLOAT,0,vertices);
glDrawArrays(GL_TRIANGLES,0,6);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
}
#define texture_emit_rotated(tx,ty,x,y,a) cos(a)*x-sin(a)*y+tx,sin(a)*x+cos(a)*y+ty
void texture_draw_empty_rotated(float x, float y, float w, float h, float angle) {
float vertices[12] = {
texture_emit_rotated(x,y,-w/2,h/2,angle),
texture_emit_rotated(x,y,-w/2,-h/2,angle),
texture_emit_rotated(x,y,w/2,-h/2,angle),
texture_emit_rotated(x,y,-w/2,h/2,angle),
texture_emit_rotated(x,y,w/2,-h/2,angle),
texture_emit_rotated(x,y,w/2,h/2,angle)
};
float texcoords[12] = {
0.0F,0.0F,
0.0F,1.0F,
1.0F,1.0F,
0.0F,0.0F,
1.0F,1.0F,
1.0F,0.0F
};
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnableClientState(GL_VERTEX_ARRAY);
glTexCoordPointer(2,GL_FLOAT,0,texcoords);
glVertexPointer(2,GL_FLOAT,0,vertices);
glDrawArrays(GL_TRIANGLES,0,6);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
}
void texture_resize_pow2(struct texture* t, int min_size) {
if(!t->pixels)
return;
int max_size = 0;
glGetIntegerv(GL_MAX_TEXTURE_SIZE,&max_size);
max_size = max(max_size,min_size);
int w = 1, h = 1;
if(strstr(glGetString(GL_EXTENSIONS),"ARB_texture_non_power_of_two")!=NULL) {
if(t->width<=max_size && t->height<=max_size)
return;
w = t->width;
h = t->height;
} else {
while(w<t->width)
w += w;
while(h<t->height)
h += h;
}
w = min(w,max_size);
h = min(h,max_size);
if(t->width==w && t->height==h)
return;
log_info("texture original: %i:%i now: %i:%i limit: %i",t->width,t->height,w,h,max_size);
unsigned int* pixels_new = malloc(w*h*sizeof(unsigned int));
CHECK_ALLOCATION_ERROR(pixels_new)
for(int y=0;y<h;y++) {
for(int x=0;x<w;x++) {
float px = (float)x/(float)w*(float)t->width;
float py = (float)y/(float)h*(float)t->height;
float u = px-(int)px;
float v = py-(int)py;
unsigned int aa = ((unsigned int*)t->pixels)[(int)px+(int)py*t->width];
unsigned int ba = ((unsigned int*)t->pixels)[min((int)px+(int)py*t->width+1,t->width*t->height)];
unsigned int ab = ((unsigned int*)t->pixels)[min((int)px+(int)py*t->width+t->width,t->width*t->height)];
unsigned int bb = ((unsigned int*)t->pixels)[min((int)px+(int)py*t->width+1+t->width,t->width*t->height)];
pixels_new[x+y*w] = 0;
pixels_new[x+y*w] |= (int)((1.0F-v)*u*red(ba)+(1.0F-v)*(1.0F-u)*red(aa)+v*u*red(bb)+v*(1.0F-u)*red(ab));
pixels_new[x+y*w] |= (int)((1.0F-v)*u*green(ba)+(1.0F-v)*(1.0F-u)*green(aa)+v*u*green(bb)+v*(1.0F-u)*green(ab))<<8;
pixels_new[x+y*w] |= (int)((1.0F-v)*u*blue(ba)+(1.0F-v)*(1.0F-u)*blue(aa)+v*u*blue(bb)+v*(1.0F-u)*blue(ab))<<16;
pixels_new[x+y*w] |= (int)((1.0F-v)*u*alpha(ba)+(1.0F-v)*(1.0F-u)*alpha(aa)+v*u*alpha(bb)+v*(1.0F-u)*alpha(ab))<<24;
}
}
t->width = w;
t->height = h;
free(t->pixels);
t->pixels = (unsigned char*)pixels_new;
}
unsigned int texture_block_color(int x, int y) {
int base[3][8]={{15,31,31,31, 0, 0, 0,31},
{15, 0,15,31,31,31, 0, 0},
{15, 0, 0, 0, 0,31,31,31}};
if(x<4) {
return rgb(base[0][y]+x*(base[0][y]*2+2)*(base[0][y]>0),
base[1][y]+x*(base[1][y]*2+2)*(base[1][y]>0),
base[2][y]+x*(base[2][y]*2+2)*(base[2][y]>0));
} else {
return rgb(min(base[0][y]+x*(base[0][y]*2+2)*(base[0][y]>0)+((x-3)*64-33)*(!base[0][y]),255),
min(base[1][y]+x*(base[1][y]*2+2)*(base[1][y]>0)+((x-3)*64-33)*(!base[1][y]),255),
min(base[2][y]+x*(base[2][y]*2+2)*(base[2][y]>0)+((x-3)*64-33)*(!base[2][y]),255));
}
}
void texture_gradient_fog(unsigned int* gradient) {
int size = 512;
for(int y=0;y<size;y++) {
for(int x=0;x<size;x++) {
int d = min(sqrt(distance2D(size/2,size/2,x,y))/(float)size*2.0F*255.0F,255);
gradient[x+y*size] = (d<<24)|rgb((int)(fog_color[0]*255.0F),(int)(fog_color[1]*255.0F),(int)(fog_color[2]*255.0F));
}
}
}
void texture_init() {
texture_create(&texture_splash,"png/splash.png");
texture_create(&texture_health,"png/health.png");
texture_create(&texture_block,"png/block.png");
texture_create(&texture_grenade,"png/grenade.png");
texture_create(&texture_ammo_semi,"png/semiammo.png");
texture_create(&texture_ammo_smg,"png/smgammo.png");
texture_create(&texture_ammo_shotgun,"png/shotgunammo.png");
texture_create(&texture_zoom_semi,"png/semi.png");
texture_create(&texture_zoom_smg,"png/smg.png");
texture_create(&texture_zoom_shotgun,"png/shotgun.png");
texture_create(&texture_white,"png/white.png");
texture_create(&texture_target,"png/target.png");
texture_create(&texture_indicator,"png/indicator.png");
texture_create(&texture_player,"png/player.png");
texture_create(&texture_medical,"png/medical.png");
texture_create(&texture_intel,"png/intel.png");
texture_create(&texture_command,"png/command.png");
texture_create(&texture_tracer,"png/tracer.png");
texture_create(&texture_ui_wait,"png/ui/wait.png");
texture_filter(&texture_ui_wait,TEXTURE_FILTER_LINEAR);
texture_create(&texture_ui_join,"png/ui/join.png");
texture_create(&texture_ui_reload,"png/ui/reload.png");
texture_create(&texture_ui_bg,"png/ui/bg.png");
texture_create(&texture_ui_input,"png/ui/input.png");
texture_create(&texture_ui_box_empty,"png/ui/box_empty.png");
texture_create(&texture_ui_box_check,"png/ui/box_check.png");
texture_create(&texture_ui_arrow,"png/ui/arrow.png");
texture_create(&texture_ui_arrow2,"png/ui/arrow2.png");
texture_create(&texture_ui_flags,"png/ui/flags.png");
texture_filter(&texture_ui_flags,TEXTURE_FILTER_LINEAR);
texture_create(&texture_ui_alert,"png/ui/alert.png");
texture_filter(&texture_ui_alert,TEXTURE_FILTER_LINEAR);
unsigned int* pixels = malloc(64*64*sizeof(unsigned int));
CHECK_ALLOCATION_ERROR(pixels)
memset(pixels,0,64*64*sizeof(unsigned int));
for(int y=0;y<8;y++) {
for(int x=0;x<8;x++) {
for(int ys=0;ys<6;ys++) {
for(int xs=0;xs<6;xs++) {
pixels[(x*8+xs)+(y*8+ys)*64] = 0xFF000000 | texture_block_color(x,y);
}
}
}
}
texture_create_buffer(&texture_color_selection,64,64,(unsigned char*)pixels,1);
texture_create_buffer(&texture_minimap,map_size_x,map_size_z,map_minimap,1);
unsigned int* gradient = malloc(512*512*sizeof(unsigned int));
CHECK_ALLOCATION_ERROR(gradient)
texture_gradient_fog(gradient);
texture_create_buffer(&texture_gradient,512,512,(unsigned char*)gradient,1);
}