tron@2186: /* $Id$ */
tron@2186: 
rubidium@9111: /** @file screenshot.cpp The creation of screenshots! */
rubidium@9111: 
truelight@0: #include "stdafx.h"
Darkvater@1891: #include "openttd.h"
tron@1299: #include "debug.h"
rubidium@10039: #include "fileio_func.h"
rubidium@8225: #include "viewport_func.h"
rubidium@8225: #include "gfx_func.h"
rubidium@8254: #include "core/math_func.hpp"
tron@430: #include "screenshot.h"
tron@2159: #include "variables.h"
truelight@6937: #include "blitter/factory.hpp"
rubidium@8114: #include "strings_func.h"
rubidium@8123: #include "zoom_func.h"
rubidium@8130: #include "core/alloc_func.hpp"
rubidium@8132: #include "core/endian_func.hpp"
rubidium@8139: #include "map_func.h"
rubidium@8140: #include "date_func.h"
rubidium@10208: #include "company_func.h"
truelight@0: 
rubidium@8264: #include "table/strings.h"
rubidium@8264: 
tron@2121: char _screenshot_format_name[8];
tron@2121: uint _num_screenshot_formats;
tron@2121: uint _cur_screenshot_format;
belugas@4184: ScreenshotType current_screenshot_type;
tron@2121: 
belugas@6420: /* called by the ScreenShot proc to generate screenshot lines. */
truelight@6878: typedef void ScreenshotCallback(void *userdata, void *buf, uint y, uint pitch, uint n);
tron@1991: typedef bool ScreenshotHandlerProc(const char *name, ScreenshotCallback *callb, void *userdata, uint w, uint h, int pixelformat, const Colour *palette);
truelight@0: 
rubidium@6248: struct ScreenshotFormat {
truelight@0: 	const char *name;
truelight@0: 	const char *extension;
truelight@0: 	ScreenshotHandlerProc *proc;
rubidium@6248: };
truelight@0: 
truelight@0: //************************************************
truelight@0: //*** SCREENSHOT CODE FOR WINDOWS BITMAP (.BMP)
truelight@0: //************************************************
truelight@923: #if defined(_MSC_VER) || defined(__WATCOMC__)
truelight@0: #pragma pack(push, 1)
truelight@0: #endif
truelight@0: 
rubidium@6248: struct BitmapFileHeader {
truelight@0: 	uint16 type;
truelight@0: 	uint32 size;
truelight@0: 	uint32 reserved;
truelight@0: 	uint32 off_bits;
rubidium@6248: } GCC_PACK;
truelight@0: assert_compile(sizeof(BitmapFileHeader) == 14);
truelight@0: 
truelight@923: #if defined(_MSC_VER) || defined(__WATCOMC__)
truelight@0: #pragma pack(pop)
truelight@0: #endif
truelight@0: 
rubidium@6248: struct BitmapInfoHeader {
truelight@0: 	uint32 size;
truelight@0: 	int32 width, height;
truelight@0: 	uint16 planes, bitcount;
truelight@0: 	uint32 compression, sizeimage, xpels, ypels, clrused, clrimp;
rubidium@6248: };
truelight@0: assert_compile(sizeof(BitmapInfoHeader) == 40);
truelight@0: 
rubidium@6248: struct RgbQuad {
truelight@0: 	byte blue, green, red, reserved;
rubidium@6248: };
truelight@0: assert_compile(sizeof(RgbQuad) == 4);
truelight@0: 
belugas@6420: /* generic .BMP writer */
tron@1991: static bool MakeBmpImage(const char *name, ScreenshotCallback *callb, void *userdata, uint w, uint h, int pixelformat, const Colour *palette)
truelight@0: {
truelight@0: 	BitmapFileHeader bfh;
truelight@0: 	BitmapInfoHeader bih;
darkvater@318: 	RgbQuad rq[256];
truelight@0: 	FILE *f;
truelight@0: 	uint i, padw;
truelight@0: 	uint n, maxlines;
truelight@6878: 	uint pal_size = 0;
truelight@6878: 	uint bpp = pixelformat / 8;
truelight@0: 
truelight@6878: 	/* only implemented for 8bit and 32bit images so far. */
truelight@6878: 	if (pixelformat != 8 && pixelformat != 32) return false;
truelight@0: 
Darkvater@5167: 	f = fopen(name, "wb");
truelight@0: 	if (f == NULL) return false;
truelight@0: 
belugas@6420: 	/* each scanline must be aligned on a 32bit boundary */
skidd13@7927: 	padw = Align(w, 4);
truelight@0: 
truelight@6878: 	if (pixelformat == 8) pal_size = sizeof(RgbQuad) * 256;
truelight@6878: 
belugas@6420: 	/* setup the file header */
truelight@0: 	bfh.type = TO_LE16('MB');
truelight@6878: 	bfh.size = TO_LE32(sizeof(bfh) + sizeof(bih) + pal_size + padw * h * bpp);
truelight@0: 	bfh.reserved = 0;
truelight@6878: 	bfh.off_bits = TO_LE32(sizeof(bfh) + sizeof(bih) + pal_size);
truelight@0: 
belugas@6420: 	/* setup the info header */
truelight@0: 	bih.size = TO_LE32(sizeof(BitmapInfoHeader));
truelight@0: 	bih.width = TO_LE32(w);
truelight@0: 	bih.height = TO_LE32(h);
truelight@0: 	bih.planes = TO_LE16(1);
truelight@6878: 	bih.bitcount = TO_LE16(pixelformat);
truelight@0: 	bih.compression = 0;
truelight@0: 	bih.sizeimage = 0;
truelight@0: 	bih.xpels = 0;
truelight@0: 	bih.ypels = 0;
truelight@0: 	bih.clrused = 0;
truelight@0: 	bih.clrimp = 0;
truelight@0: 
truelight@6878: 	if (pixelformat == 8) {
truelight@6878: 		/* convert the palette to the windows format */
truelight@6878: 		for (i = 0; i != 256; i++) {
truelight@6878: 			rq[i].red   = palette[i].r;
truelight@6878: 			rq[i].green = palette[i].g;
truelight@6878: 			rq[i].blue  = palette[i].b;
truelight@6878: 			rq[i].reserved = 0;
truelight@6878: 		}
truelight@0: 	}
truelight@0: 
belugas@6420: 	/* write file header and info header and palette */
tron@430: 	if (fwrite(&bfh, sizeof(bfh), 1, f) != 1) return false;
tron@430: 	if (fwrite(&bih, sizeof(bih), 1, f) != 1) return false;
truelight@6878: 	if (pixelformat == 8) if (fwrite(rq, sizeof(rq), 1, f) != 1) return false;
truelight@0: 
belugas@6420: 	/* use by default 64k temp memory */
skidd13@7922: 	maxlines = Clamp(65536 / padw, 16, 128);
truelight@0: 
belugas@6420: 	/* now generate the bitmap bits */
truelight@6878: 	void *buff = MallocT<uint8>(padw * maxlines * bpp); // by default generate 128 lines at a time.
tron@430: 	if (buff == NULL) {
tron@430: 		fclose(f);
tron@430: 		return false;
tron@430: 	}
truelight@0: 	memset(buff, 0, padw * maxlines); // zero the buffer to have the padding bytes set to 0
truelight@0: 
belugas@6420: 	/* start at the bottom, since bitmaps are stored bottom up. */
truelight@0: 	do {
belugas@6420: 		/* determine # lines */
truelight@0: 		n = min(h, maxlines);
truelight@0: 		h -= n;
truelight@193: 
belugas@6420: 		/* render the pixels */
truelight@0: 		callb(userdata, buff, h, padw, n);
truelight@193: 
belugas@6420: 		/* write each line */
truelight@193: 		while (n)
truelight@6878: 			if (fwrite((uint8 *)buff + (--n) * padw * bpp, padw * bpp, 1, f) != 1) {
tron@430: 				free(buff);
tron@430: 				fclose(f);
tron@430: 				return false;
tron@430: 			}
tron@430: 	} while (h != 0);
truelight@0: 
tron@430: 	free(buff);
truelight@0: 	fclose(f);
truelight@0: 
truelight@0: 	return true;
truelight@0: }
truelight@0: 
truelight@0: //********************************************************
truelight@0: //*** SCREENSHOT CODE FOR PORTABLE NETWORK GRAPHICS (.PNG)
truelight@0: //********************************************************
truelight@0: #if defined(WITH_PNG)
truelight@0: #include <png.h>
truelight@0: 
truelight@0: static void PNGAPI png_my_error(png_structp png_ptr, png_const_charp message)
truelight@0: {
Darkvater@5380: 	DEBUG(misc, 0, "[libpng] error: %s - %s", message, (char *)png_get_error_ptr(png_ptr));
truelight@0: 	longjmp(png_ptr->jmpbuf, 1);
truelight@0: }
truelight@0: 
truelight@0: static void PNGAPI png_my_warning(png_structp png_ptr, png_const_charp message)
truelight@0: {
Darkvater@5380: 	DEBUG(misc, 1, "[libpng] warning: %s - %s", message, (char *)png_get_error_ptr(png_ptr));
truelight@0: }
truelight@0: 
tron@1991: static bool MakePNGImage(const char *name, ScreenshotCallback *callb, void *userdata, uint w, uint h, int pixelformat, const Colour *palette)
truelight@0: {
darkvater@318: 	png_color rq[256];
truelight@0: 	FILE *f;
truelight@0: 	uint i, y, n;
truelight@0: 	uint maxlines;
truelight@6878: 	uint bpp = pixelformat / 8;
truelight@0: 	png_structp png_ptr;
truelight@0: 	png_infop info_ptr;
truelight@0: 
truelight@6878: 	/* only implemented for 8bit and 32bit images so far. */
truelight@6878: 	if (pixelformat != 8 && pixelformat != 32) return false;
truelight@0: 
Darkvater@5167: 	f = fopen(name, "wb");
truelight@0: 	if (f == NULL) return false;
truelight@0: 
tron@430: 	png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, (char *)name, png_my_error, png_my_warning);
truelight@0: 
tron@430: 	if (png_ptr == NULL) {
truelight@0: 		fclose(f);
truelight@0: 		return false;
truelight@0: 	}
truelight@0: 
truelight@0: 	info_ptr = png_create_info_struct(png_ptr);
tron@430: 	if (info_ptr == NULL) {
truelight@0: 		png_destroy_write_struct(&png_ptr, (png_infopp)NULL);
truelight@0: 		fclose(f);
truelight@0: 		return false;
truelight@0: 	}
truelight@0: 
truelight@0: 	if (setjmp(png_jmpbuf(png_ptr))) {
truelight@0: 		png_destroy_write_struct(&png_ptr, &info_ptr);
truelight@0: 		fclose(f);
truelight@0: 		return false;
truelight@0: 	}
truelight@0: 
truelight@0: 	png_init_io(png_ptr, f);
truelight@193: 
truelight@0: 	png_set_filter(png_ptr, 0, PNG_FILTER_NONE);
truelight@0: 
truelight@6878: 	png_set_IHDR(png_ptr, info_ptr, w, h, 8, pixelformat == 8 ? PNG_COLOR_TYPE_PALETTE : PNG_COLOR_TYPE_RGB,
tron@430: 		PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
truelight@0: 
truelight@6878: 	if (pixelformat == 8) {
truelight@6878: 		/* convert the palette to the .PNG format. */
truelight@6878: 		for (i = 0; i != 256; i++) {
truelight@6878: 			rq[i].red   = palette[i].r;
truelight@6878: 			rq[i].green = palette[i].g;
truelight@6878: 			rq[i].blue  = palette[i].b;
truelight@6878: 		}
truelight@6878: 
truelight@6878: 		png_set_PLTE(png_ptr, info_ptr, rq, 256);
truelight@0: 	}
truelight@0: 
truelight@0: 	png_write_info(png_ptr, info_ptr);
truelight@0: 	png_set_flush(png_ptr, 512);
truelight@0: 
truelight@6878: 	if (pixelformat == 32) {
truelight@6878: 		png_color_8 sig_bit;
truelight@6878: 
truelight@6878: 		/* Save exact color/alpha resolution */
truelight@6878: 		sig_bit.alpha = 0;
truelight@6878: 		sig_bit.blue  = 8;
truelight@6878: 		sig_bit.green = 8;
truelight@6878: 		sig_bit.red   = 8;
truelight@6878: 		sig_bit.gray  = 8;
truelight@6878: 		png_set_sBIT(png_ptr, info_ptr, &sig_bit);
truelight@6878: 
smatz@9543: #if TTD_ENDIAN == TTD_LITTLE_ENDIAN
truelight@6878: 		png_set_bgr(png_ptr);
truelight@6878: 		png_set_filler(png_ptr, 0, PNG_FILLER_AFTER);
truelight@6878: #else
truelight@6878: 		png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE);
smatz@9543: #endif /* TTD_ENDIAN == TTD_LITTLE_ENDIAN */
truelight@6878: 	}
truelight@6878: 
belugas@6420: 	/* use by default 64k temp memory */
skidd13@7922: 	maxlines = Clamp(65536 / w, 16, 128);
truelight@0: 
belugas@6420: 	/* now generate the bitmap bits */
truelight@6878: 	void *buff = MallocT<uint8>(w * maxlines * bpp); // by default generate 128 lines at a time.
tron@430: 	if (buff == NULL) {
tron@430: 		png_destroy_write_struct(&png_ptr, &info_ptr);
tron@430: 		fclose(f);
tron@430: 		return false;
tron@430: 	}
truelight@6878: 	memset(buff, 0, w * maxlines * bpp);
truelight@0: 
truelight@0: 	y = 0;
truelight@0: 	do {
belugas@6420: 		/* determine # lines to write */
truelight@0: 		n = min(h - y, maxlines);
truelight@193: 
belugas@6420: 		/* render the pixels into the buffer */
truelight@0: 		callb(userdata, buff, y, w, n);
truelight@0: 		y += n;
truelight@0: 
belugas@6420: 		/* write them to png */
tron@430: 		for (i = 0; i != n; i++)
truelight@6878: 			png_write_row(png_ptr, (png_bytep)buff + i * w * bpp);
truelight@0: 	} while (y != h);
truelight@0: 
truelight@0: 	png_write_end(png_ptr, info_ptr);
truelight@0: 	png_destroy_write_struct(&png_ptr, &info_ptr);
truelight@0: 
tron@430: 	free(buff);
truelight@0: 	fclose(f);
truelight@0: 	return true;
truelight@0: }
truelight@4300: #endif /* WITH_PNG */
truelight@0: 
truelight@0: 
truelight@0: //************************************************
truelight@0: //*** SCREENSHOT CODE FOR ZSOFT PAINTBRUSH (.PCX)
truelight@0: //************************************************
truelight@0: 
rubidium@6248: struct PcxHeader {
truelight@0: 	byte manufacturer;
truelight@0: 	byte version;
truelight@0: 	byte rle;
truelight@0: 	byte bpp;
truelight@0: 	uint32 unused;
truelight@0: 	uint16 xmax, ymax;
truelight@0: 	uint16 hdpi, vdpi;
rubidium@6491: 	byte pal_small[16 * 3];
truelight@0: 	byte reserved;
truelight@0: 	byte planes;
truelight@0: 	uint16 pitch;
truelight@0: 	uint16 cpal;
truelight@0: 	uint16 width;
truelight@0: 	uint16 height;
truelight@0: 	byte filler[54];
rubidium@6248: };
truelight@0: assert_compile(sizeof(PcxHeader) == 128);
truelight@0: 
tron@1991: static bool MakePCXImage(const char *name, ScreenshotCallback *callb, void *userdata, uint w, uint h, int pixelformat, const Colour *palette)
truelight@0: {
truelight@0: 	FILE *f;
truelight@0: 	uint maxlines;
truelight@0: 	uint y;
truelight@0: 	PcxHeader pcx;
peter1138@4019: 	bool success;
truelight@0: 
truelight@6878: 	if (pixelformat == 32) {
truelight@6878: 		DEBUG(misc, 0, "Can't convert a 32bpp screenshot to PCX format. Please pick an other format.");
truelight@6878: 		return false;
truelight@6878: 	}
truelight@0: 	if (pixelformat != 8 || w == 0)
truelight@0: 		return false;
truelight@0: 
Darkvater@5167: 	f = fopen(name, "wb");
truelight@0: 	if (f == NULL) return false;
truelight@0: 
truelight@0: 	memset(&pcx, 0, sizeof(pcx));
truelight@193: 
belugas@6420: 	/* setup pcx header */
truelight@0: 	pcx.manufacturer = 10;
truelight@0: 	pcx.version = 5;
truelight@0: 	pcx.rle = 1;
truelight@0: 	pcx.bpp = 8;
tron@430: 	pcx.xmax = TO_LE16(w - 1);
tron@430: 	pcx.ymax = TO_LE16(h - 1);
truelight@0: 	pcx.hdpi = TO_LE16(320);
truelight@0: 	pcx.vdpi = TO_LE16(320);
truelight@0: 
truelight@0: 	pcx.planes = 1;
truelight@0: 	pcx.cpal = TO_LE16(1);
truelight@0: 	pcx.width = pcx.pitch = TO_LE16(w);
truelight@0: 	pcx.height = TO_LE16(h);
truelight@193: 
belugas@6420: 	/* write pcx header */
tron@430: 	if (fwrite(&pcx, sizeof(pcx), 1, f) != 1) {
tron@430: 		fclose(f);
tron@430: 		return false;
tron@430: 	}
truelight@0: 
belugas@6420: 	/* use by default 64k temp memory */
skidd13@7922: 	maxlines = Clamp(65536 / w, 16, 128);
truelight@0: 
belugas@6420: 	/* now generate the bitmap bits */
truelight@6878: 	uint8 *buff = MallocT<uint8>(w * maxlines); // by default generate 128 lines at a time.
tron@430: 	if (buff == NULL) {
tron@430: 		fclose(f);
tron@430: 		return false;
tron@430: 	}
tron@430: 	memset(buff, 0, w * maxlines); // zero the buffer to have the padding bytes set to 0
truelight@0: 
truelight@0: 	y = 0;
truelight@0: 	do {
belugas@6420: 		/* determine # lines to write */
tron@430: 		uint n = min(h - y, maxlines);
tron@430: 		uint i;
truelight@193: 
belugas@6420: 		/* render the pixels into the buffer */
truelight@0: 		callb(userdata, buff, y, w, n);
truelight@0: 		y += n;
truelight@0: 
belugas@6420: 		/* write them to pcx */
tron@430: 		for (i = 0; i != n; i++) {
truelight@6878: 			const uint8 *bufp = buff + i * w;
tron@2004: 			byte runchar = bufp[0];
tron@2004: 			uint runcount = 1;
tron@2004: 			uint j;
truelight@0: 
belugas@6420: 			/* for each pixel... */
tron@2004: 			for (j = 1; j < w; j++) {
truelight@6878: 				uint8 ch = bufp[j];
tron@2004: 
truelight@0: 				if (ch != runchar || runcount >= 0x3f) {
tron@430: 					if (runcount > 1 || (runchar & 0xC0) == 0xC0)
tron@430: 						if (fputc(0xC0 | runcount, f) == EOF) {
tron@430: 							free(buff);
tron@430: 							fclose(f);
tron@430: 							return false;
tron@430: 						}
tron@430: 					if (fputc(runchar, f) == EOF) {
tron@430: 						free(buff);
tron@430: 						fclose(f);
tron@430: 						return false;
tron@430: 					}
truelight@0: 					runcount = 0;
truelight@0: 					runchar = ch;
truelight@0: 				}
truelight@0: 				runcount++;
truelight@0: 			}
truelight@0: 
belugas@6420: 			/* write remaining bytes.. */
tron@430: 			if (runcount > 1 || (runchar & 0xC0) == 0xC0)
tron@430: 				if (fputc(0xC0 | runcount, f) == EOF) {
tron@430: 					free(buff);
tron@430: 					fclose(f);
tron@430: 					return false;
tron@430: 				}
tron@430: 			if (fputc(runchar, f) == EOF) {
tron@430: 				free(buff);
tron@430: 				fclose(f);
tron@430: 				return false;
tron@430: 			}
truelight@0: 		}
truelight@0: 	} while (y != h);
truelight@0: 
tron@430: 	free(buff);
tron@430: 
belugas@6420: 	/* write 8-bit color palette */
tron@430: 	if (fputc(12, f) == EOF) {
tron@430: 		fclose(f);
tron@430: 		return false;
tron@430: 	}
tron@1991: 
smatz@9551: 	/* Palette is word-aligned, copy it to a temporary byte array */
smatz@9551: 	byte tmp[256 * 3];
tron@4079: 
smatz@9551: 	for (uint i = 0; i < 256; i++) {
smatz@9551: 		tmp[i * 3 + 0] = palette[i].r;
smatz@9551: 		tmp[i * 3 + 1] = palette[i].g;
smatz@9551: 		tmp[i * 3 + 2] = palette[i].b;
tron@430: 	}
smatz@9551: 	success = fwrite(tmp, sizeof(tmp), 1, f) == 1;
peter1138@4019: 
truelight@0: 	fclose(f);
truelight@0: 
peter1138@4019: 	return success;
truelight@0: }
truelight@0: 
truelight@0: //************************************************
truelight@0: //*** GENERIC SCREENSHOT CODE
truelight@0: //************************************************
truelight@0: 
truelight@0: static const ScreenshotFormat _screenshot_formats[] = {
truelight@0: #if defined(WITH_PNG)
truelight@0: 	{"PNG", "png", &MakePNGImage},
truelight@0: #endif
matthijs@4360: 	{"BMP", "bmp", &MakeBmpImage},
truelight@0: 	{"PCX", "pcx", &MakePCXImage},
truelight@0: };
truelight@0: 
rubidium@6247: void InitializeScreenshotFormats()
truelight@0: {
tron@430: 	int i, j;
tron@430: 	for (i = 0, j = 0; i != lengthof(_screenshot_formats); i++)
tron@430: 		if (!strcmp(_screenshot_format_name, _screenshot_formats[i].extension)) {
tron@430: 			j = i;
tron@430: 			break;
tron@430: 		}
truelight@0: 	_cur_screenshot_format = j;
truelight@0: 	_num_screenshot_formats = lengthof(_screenshot_formats);
belugas@4185: 	current_screenshot_type = SC_NONE;
truelight@0: }
truelight@0: 
truelight@0: const char *GetScreenshotFormatDesc(int i)
truelight@0: {
truelight@0: 	return _screenshot_formats[i].name;
truelight@0: }
truelight@0: 
truelight@0: void SetScreenshotFormat(int i)
truelight@0: {
truelight@0: 	_cur_screenshot_format = i;
truelight@0: 	strcpy(_screenshot_format_name, _screenshot_formats[i].extension);
truelight@0: }
truelight@0: 
belugas@6420: /* screenshot generator that dumps the current video buffer */
truelight@6878: static void CurrentScreenCallback(void *userdata, void *buf, uint y, uint pitch, uint n)
truelight@0: {
truelight@6937: 	Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
truelight@6937: 	void *src = blitter->MoveTo(_screen.dst_ptr, 0, y);
truelight@6985: 	blitter->CopyImageToBuffer(src, buf, _screen.width, n, pitch);
truelight@0: }
truelight@0: 
frosch@8249: /** generate a large piece of the world
frosch@8249:  * @param userdata Viewport area to draw
frosch@8249:  * @param buf Videobuffer with same bitdepth as current blitter
frosch@8249:  * @param y First line to render
frosch@8249:  * @param pitch Pitch of the videobuffer
frosch@8249:  * @param n Number of lines to render
frosch@8249:  */
truelight@6878: static void LargeWorldCallback(void *userdata, void *buf, uint y, uint pitch, uint n)
truelight@0: {
tron@4522: 	ViewPort *vp = (ViewPort *)userdata;
truelight@0: 	DrawPixelInfo dpi, *old_dpi;
truelight@0: 	int wx, left;
truelight@0: 
frosch@8249: 	/* We are no longer rendering to the screen */
frosch@8249: 	DrawPixelInfo old_screen = _screen;
frosch@8249: 	bool old_disable_anim = _screen_disable_anim;
frosch@8249: 
frosch@8249: 	_screen.dst_ptr = buf;
frosch@8249: 	_screen.width = pitch;
frosch@8249: 	_screen.height = n;
frosch@8249: 	_screen.pitch = pitch;
frosch@8249: 	_screen_disable_anim = true;
frosch@8249: 
truelight@0: 	old_dpi = _cur_dpi;
truelight@0: 	_cur_dpi = &dpi;
truelight@0: 
truelight@0: 	dpi.dst_ptr = buf;
truelight@0: 	dpi.height = n;
truelight@0: 	dpi.width = vp->width;
truelight@0: 	dpi.pitch = pitch;
truelight@6624: 	dpi.zoom = ZOOM_LVL_WORLD_SCREENSHOT;
truelight@0: 	dpi.left = 0;
truelight@0: 	dpi.top = y;
truelight@0: 
frosch@8249: 	/* Render viewport in blocks of 1600 pixels width */
truelight@0: 	left = 0;
truelight@0: 	while (vp->width - left != 0) {
truelight@0: 		wx = min(vp->width - left, 1600);
truelight@0: 		left += wx;
truelight@193: 
truelight@193: 		ViewportDoDraw(vp,
truelight@6626: 			ScaleByZoom(left - wx - vp->left, vp->zoom) + vp->virtual_left,
truelight@6626: 			ScaleByZoom(y - vp->top, vp->zoom) + vp->virtual_top,
truelight@6626: 			ScaleByZoom(left - vp->left, vp->zoom) + vp->virtual_left,
truelight@6626: 			ScaleByZoom((y + n) - vp->top, vp->zoom) + vp->virtual_top
truelight@0: 		);
truelight@0: 	}
truelight@0: 
truelight@0: 	_cur_dpi = old_dpi;
frosch@8249: 
frosch@8249: 	/* Switch back to rendering to the screen */
frosch@8249: 	_screen = old_screen;
frosch@8249: 	_screen_disable_anim = old_disable_anim;
truelight@0: }
truelight@0: 
truelight@0: static char *MakeScreenshotName(const char *ext)
truelight@0: {
rubidium@6929: 	static char filename[MAX_PATH];
truelight@0: 	int serial;
rubidium@6929: 	size_t len;
truelight@0: 
rubidium@10207: 	if (_game_mode == GM_EDITOR || _game_mode == GM_MENU || _local_company == COMPANY_SPECTATOR) {
skidd13@10310: 		strecpy(_screenshot_name, "screenshot", lastof(_screenshot_name));
truelight@0: 	} else {
rubidium@10207: 		SetDParam(0, _local_company);
peter1138@7058: 		SetDParam(1, _date);
Darkvater@4912: 		GetString(_screenshot_name, STR_4004, lastof(_screenshot_name));
truelight@0: 	}
truelight@0: 
rubidium@6929: 	/* Add extension to screenshot file */
rubidium@6875: 	SanitizeFilename(_screenshot_name);
rubidium@6929: 	len = strlen(_screenshot_name);
rubidium@6929: 	snprintf(&_screenshot_name[len], lengthof(_screenshot_name) - len, ".%s", ext);
truelight@0: 
rubidium@6929: 	for (serial = 1;; serial++) {
rubidium@6929: 		snprintf(filename, lengthof(filename), "%s%s", _personal_dir, _screenshot_name);
rubidium@6929: 		if (!FileExists(filename)) break;
rubidium@6929: 		/* If file exists try another one with same name, but just with a higher index */
rubidium@6929: 		snprintf(&_screenshot_name[len], lengthof(_screenshot_name) - len, "#%d.%s", serial, ext);
truelight@0: 	}
truelight@0: 
truelight@0: 	return filename;
truelight@0: }
truelight@0: 
belugas@4184: void SetScreenshotType(ScreenshotType t)
belugas@4184: {
belugas@4184: 	current_screenshot_type = t;
belugas@4184: }
belugas@4184: 
rubidium@6247: bool IsScreenshotRequested()
belugas@4184: {
belugas@4184: 	return (current_screenshot_type != SC_NONE);
belugas@4184: }
belugas@4184: 
rubidium@6247: static bool MakeSmallScreenshot()
truelight@0: {
truelight@0: 	const ScreenshotFormat *sf = _screenshot_formats + _cur_screenshot_format;
truelight@6878: 	return sf->proc(MakeScreenshotName(sf->extension), CurrentScreenCallback, NULL, _screen.width, _screen.height, BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth(), _cur_palette);
truelight@0: }
truelight@0: 
rubidium@6247: static bool MakeWorldScreenshot()
truelight@0: {
truelight@0: 	ViewPort vp;
truelight@0: 	const ScreenshotFormat *sf;
truelight@0: 
truelight@6624: 	vp.zoom = ZOOM_LVL_WORLD_SCREENSHOT;
truelight@0: 	vp.left = 0;
truelight@0: 	vp.top = 0;
belugas@4184: 	vp.virtual_left = -(int)MapMaxX() * TILE_PIXELS;
belugas@4184: 	vp.virtual_top = 0;
belugas@4184: 	vp.virtual_width = (MapMaxX() + MapMaxY()) * TILE_PIXELS;
belugas@4184: 	vp.width = vp.virtual_width;
belugas@4184: 	vp.virtual_height = (MapMaxX() + MapMaxY()) * TILE_PIXELS >> 1;
belugas@4184: 	vp.height = vp.virtual_height;
truelight@0: 
truelight@0: 	sf = _screenshot_formats + _cur_screenshot_format;
truelight@6878: 	return sf->proc(MakeScreenshotName(sf->extension), LargeWorldCallback, &vp, vp.width, vp.height, BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth(), _cur_palette);
truelight@0: }
belugas@4184: 
rubidium@6247: bool MakeScreenshot()
belugas@4184: {
belugas@4184: 	switch (current_screenshot_type) {
belugas@4184: 		case SC_VIEWPORT:
belugas@4184: 			UndrawMouseCursor();
belugas@5371: 			DrawDirtyBlocks();
belugas@4184: 			current_screenshot_type = SC_NONE;
belugas@4184: 			return MakeSmallScreenshot();
belugas@4184: 		case SC_WORLD:
belugas@4184: 			current_screenshot_type = SC_NONE;
belugas@4184: 			return MakeWorldScreenshot();
belugas@4184: 		default: return false;
belugas@4184: 	}
belugas@4184: }
belugas@4184: 
Darkvater@5380: 
Darkvater@5380: