mirror of
https://github.com/JGRennison/OpenTTD-patches.git
synced 2024-11-17 21:25:40 +00:00
574 lines
13 KiB
C++
574 lines
13 KiB
C++
/* $Id$ */
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#include "stdafx.h"
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#include "openttd.h"
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#include "debug.h"
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#include "functions.h"
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#include "strings.h"
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#include "table/strings.h"
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#include "gfx.h"
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#include "hal.h"
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#include "viewport.h"
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#include "player.h"
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#include "screenshot.h"
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#include "variables.h"
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#include "date.h"
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#include "helpers.hpp"
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char _screenshot_format_name[8];
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uint _num_screenshot_formats;
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uint _cur_screenshot_format;
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ScreenshotType current_screenshot_type;
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// called by the ScreenShot proc to generate screenshot lines.
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typedef void ScreenshotCallback(void *userdata, Pixel *buf, uint y, uint pitch, uint n);
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typedef bool ScreenshotHandlerProc(const char *name, ScreenshotCallback *callb, void *userdata, uint w, uint h, int pixelformat, const Colour *palette);
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typedef struct {
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const char *name;
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const char *extension;
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ScreenshotHandlerProc *proc;
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} ScreenshotFormat;
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//************************************************
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//*** SCREENSHOT CODE FOR WINDOWS BITMAP (.BMP)
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//************************************************
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#if defined(_MSC_VER) || defined(__WATCOMC__)
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#pragma pack(push, 1)
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#endif
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typedef struct BitmapFileHeader {
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uint16 type;
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uint32 size;
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uint32 reserved;
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uint32 off_bits;
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} GCC_PACK BitmapFileHeader;
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assert_compile(sizeof(BitmapFileHeader) == 14);
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#if defined(_MSC_VER) || defined(__WATCOMC__)
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#pragma pack(pop)
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#endif
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typedef struct BitmapInfoHeader {
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uint32 size;
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int32 width, height;
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uint16 planes, bitcount;
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uint32 compression, sizeimage, xpels, ypels, clrused, clrimp;
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} BitmapInfoHeader;
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assert_compile(sizeof(BitmapInfoHeader) == 40);
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typedef struct RgbQuad {
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byte blue, green, red, reserved;
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} RgbQuad;
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assert_compile(sizeof(RgbQuad) == 4);
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// generic .BMP writer
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static bool MakeBmpImage(const char *name, ScreenshotCallback *callb, void *userdata, uint w, uint h, int pixelformat, const Colour *palette)
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{
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BitmapFileHeader bfh;
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BitmapInfoHeader bih;
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RgbQuad rq[256];
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FILE *f;
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uint i, padw;
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uint n, maxlines;
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// only implemented for 8bit images so far.
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if (pixelformat != 8)
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return false;
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f = fopen(name, "wb");
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if (f == NULL) return false;
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// each scanline must be aligned on a 32bit boundary
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padw = ALIGN(w, 4);
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// setup the file header
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bfh.type = TO_LE16('MB');
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bfh.size = TO_LE32(sizeof(bfh) + sizeof(bih) + sizeof(RgbQuad) * 256 + padw * h);
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bfh.reserved = 0;
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bfh.off_bits = TO_LE32(sizeof(bfh) + sizeof(bih) + sizeof(RgbQuad) * 256);
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// setup the info header
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bih.size = TO_LE32(sizeof(BitmapInfoHeader));
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bih.width = TO_LE32(w);
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bih.height = TO_LE32(h);
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bih.planes = TO_LE16(1);
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bih.bitcount = TO_LE16(8);
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bih.compression = 0;
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bih.sizeimage = 0;
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bih.xpels = 0;
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bih.ypels = 0;
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bih.clrused = 0;
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bih.clrimp = 0;
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// convert the palette to the windows format
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for (i = 0; i != 256; i++) {
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rq[i].red = palette[i].r;
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rq[i].green = palette[i].g;
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rq[i].blue = palette[i].b;
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rq[i].reserved = 0;
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}
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// write file header and info header and palette
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if (fwrite(&bfh, sizeof(bfh), 1, f) != 1) return false;
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if (fwrite(&bih, sizeof(bih), 1, f) != 1) return false;
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if (fwrite(rq, sizeof(rq), 1, f) != 1) return false;
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// use by default 64k temp memory
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maxlines = clamp(65536 / padw, 16, 128);
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// now generate the bitmap bits
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Pixel *buff = MallocT<Pixel>(padw * maxlines); // by default generate 128 lines at a time.
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if (buff == NULL) {
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fclose(f);
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return false;
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}
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memset(buff, 0, padw * maxlines); // zero the buffer to have the padding bytes set to 0
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// start at the bottom, since bitmaps are stored bottom up.
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do {
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// determine # lines
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n = min(h, maxlines);
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h -= n;
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// render the pixels
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callb(userdata, buff, h, padw, n);
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// write each line
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while (n)
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if (fwrite(buff + (--n) * padw, padw, 1, f) != 1) {
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free(buff);
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fclose(f);
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return false;
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}
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} while (h != 0);
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free(buff);
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fclose(f);
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return true;
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}
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//********************************************************
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//*** SCREENSHOT CODE FOR PORTABLE NETWORK GRAPHICS (.PNG)
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//********************************************************
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#if defined(WITH_PNG)
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#include <png.h>
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static void PNGAPI png_my_error(png_structp png_ptr, png_const_charp message)
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{
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DEBUG(misc, 0, "[libpng] error: %s - %s", message, (char *)png_get_error_ptr(png_ptr));
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longjmp(png_ptr->jmpbuf, 1);
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}
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static void PNGAPI png_my_warning(png_structp png_ptr, png_const_charp message)
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{
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DEBUG(misc, 1, "[libpng] warning: %s - %s", message, (char *)png_get_error_ptr(png_ptr));
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}
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static bool MakePNGImage(const char *name, ScreenshotCallback *callb, void *userdata, uint w, uint h, int pixelformat, const Colour *palette)
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{
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png_color rq[256];
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FILE *f;
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uint i, y, n;
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uint maxlines;
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png_structp png_ptr;
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png_infop info_ptr;
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// only implemented for 8bit images so far.
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if (pixelformat != 8)
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return false;
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f = fopen(name, "wb");
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if (f == NULL) return false;
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png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, (char *)name, png_my_error, png_my_warning);
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if (png_ptr == NULL) {
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fclose(f);
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return false;
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}
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info_ptr = png_create_info_struct(png_ptr);
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if (info_ptr == NULL) {
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png_destroy_write_struct(&png_ptr, (png_infopp)NULL);
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fclose(f);
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return false;
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}
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if (setjmp(png_jmpbuf(png_ptr))) {
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png_destroy_write_struct(&png_ptr, &info_ptr);
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fclose(f);
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return false;
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}
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png_init_io(png_ptr, f);
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png_set_filter(png_ptr, 0, PNG_FILTER_NONE);
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png_set_IHDR(png_ptr, info_ptr, w, h, pixelformat, PNG_COLOR_TYPE_PALETTE,
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PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
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// convert the palette to the .PNG format.
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for (i = 0; i != 256; i++) {
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rq[i].red = palette[i].r;
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rq[i].green = palette[i].g;
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rq[i].blue = palette[i].b;
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}
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png_set_PLTE(png_ptr, info_ptr, rq, 256);
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png_write_info(png_ptr, info_ptr);
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png_set_flush(png_ptr, 512);
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// use by default 64k temp memory
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maxlines = clamp(65536 / w, 16, 128);
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// now generate the bitmap bits
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Pixel *buff = MallocT<Pixel>(w * maxlines); // by default generate 128 lines at a time.
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if (buff == NULL) {
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png_destroy_write_struct(&png_ptr, &info_ptr);
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fclose(f);
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return false;
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}
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memset(buff, 0, w * maxlines); // zero the buffer to have the padding bytes set to 0
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y = 0;
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do {
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// determine # lines to write
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n = min(h - y, maxlines);
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// render the pixels into the buffer
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callb(userdata, buff, y, w, n);
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y += n;
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// write them to png
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for (i = 0; i != n; i++)
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png_write_row(png_ptr, buff + i * w);
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} while (y != h);
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png_write_end(png_ptr, info_ptr);
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png_destroy_write_struct(&png_ptr, &info_ptr);
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free(buff);
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fclose(f);
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return true;
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}
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#endif /* WITH_PNG */
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//************************************************
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//*** SCREENSHOT CODE FOR ZSOFT PAINTBRUSH (.PCX)
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//************************************************
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typedef struct {
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byte manufacturer;
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byte version;
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byte rle;
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byte bpp;
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uint32 unused;
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uint16 xmax, ymax;
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uint16 hdpi, vdpi;
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byte pal_small[16*3];
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byte reserved;
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byte planes;
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uint16 pitch;
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uint16 cpal;
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uint16 width;
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uint16 height;
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byte filler[54];
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} PcxHeader;
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assert_compile(sizeof(PcxHeader) == 128);
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static bool MakePCXImage(const char *name, ScreenshotCallback *callb, void *userdata, uint w, uint h, int pixelformat, const Colour *palette)
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{
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FILE *f;
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uint maxlines;
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uint y;
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PcxHeader pcx;
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bool success;
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if (pixelformat != 8 || w == 0)
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return false;
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f = fopen(name, "wb");
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if (f == NULL) return false;
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memset(&pcx, 0, sizeof(pcx));
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// setup pcx header
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pcx.manufacturer = 10;
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pcx.version = 5;
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pcx.rle = 1;
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pcx.bpp = 8;
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pcx.xmax = TO_LE16(w - 1);
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pcx.ymax = TO_LE16(h - 1);
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pcx.hdpi = TO_LE16(320);
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pcx.vdpi = TO_LE16(320);
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pcx.planes = 1;
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pcx.cpal = TO_LE16(1);
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pcx.width = pcx.pitch = TO_LE16(w);
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pcx.height = TO_LE16(h);
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// write pcx header
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if (fwrite(&pcx, sizeof(pcx), 1, f) != 1) {
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fclose(f);
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return false;
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}
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// use by default 64k temp memory
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maxlines = clamp(65536 / w, 16, 128);
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// now generate the bitmap bits
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Pixel *buff = MallocT<Pixel>(w * maxlines); // by default generate 128 lines at a time.
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if (buff == NULL) {
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fclose(f);
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return false;
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}
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memset(buff, 0, w * maxlines); // zero the buffer to have the padding bytes set to 0
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y = 0;
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do {
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// determine # lines to write
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uint n = min(h - y, maxlines);
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uint i;
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// render the pixels into the buffer
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callb(userdata, buff, y, w, n);
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y += n;
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// write them to pcx
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for (i = 0; i != n; i++) {
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const Pixel* bufp = buff + i * w;
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byte runchar = bufp[0];
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uint runcount = 1;
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uint j;
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// for each pixel...
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for (j = 1; j < w; j++) {
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Pixel ch = bufp[j];
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if (ch != runchar || runcount >= 0x3f) {
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if (runcount > 1 || (runchar & 0xC0) == 0xC0)
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if (fputc(0xC0 | runcount, f) == EOF) {
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free(buff);
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fclose(f);
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return false;
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}
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if (fputc(runchar, f) == EOF) {
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free(buff);
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fclose(f);
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return false;
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}
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runcount = 0;
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runchar = ch;
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}
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runcount++;
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}
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// write remaining bytes..
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if (runcount > 1 || (runchar & 0xC0) == 0xC0)
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if (fputc(0xC0 | runcount, f) == EOF) {
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free(buff);
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fclose(f);
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return false;
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}
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if (fputc(runchar, f) == EOF) {
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free(buff);
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fclose(f);
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return false;
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}
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}
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} while (y != h);
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free(buff);
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// write 8-bit color palette
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if (fputc(12, f) == EOF) {
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fclose(f);
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return false;
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}
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if (sizeof(*palette) == 3) {
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success = fwrite(palette, 256 * sizeof(*palette), 1, f) == 1;
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} else {
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/* If the palette is word-aligned, copy it to a temporary byte array */
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byte tmp[256 * 3];
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uint i;
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for (i = 0; i < 256; i++) {
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tmp[i * 3 + 0] = palette[i].r;
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tmp[i * 3 + 1] = palette[i].g;
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tmp[i * 3 + 2] = palette[i].b;
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}
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success = fwrite(tmp, sizeof(tmp), 1, f) == 1;
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}
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fclose(f);
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return success;
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}
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//************************************************
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//*** GENERIC SCREENSHOT CODE
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//************************************************
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static const ScreenshotFormat _screenshot_formats[] = {
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#if defined(WITH_PNG)
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{"PNG", "png", &MakePNGImage},
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#endif
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{"BMP", "bmp", &MakeBmpImage},
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{"PCX", "pcx", &MakePCXImage},
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};
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void InitializeScreenshotFormats(void)
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{
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int i, j;
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for (i = 0, j = 0; i != lengthof(_screenshot_formats); i++)
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if (!strcmp(_screenshot_format_name, _screenshot_formats[i].extension)) {
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j = i;
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break;
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}
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_cur_screenshot_format = j;
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_num_screenshot_formats = lengthof(_screenshot_formats);
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current_screenshot_type = SC_NONE;
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}
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const char *GetScreenshotFormatDesc(int i)
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{
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return _screenshot_formats[i].name;
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}
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void SetScreenshotFormat(int i)
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{
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_cur_screenshot_format = i;
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strcpy(_screenshot_format_name, _screenshot_formats[i].extension);
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}
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// screenshot generator that dumps the current video buffer
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static void CurrentScreenCallback(void *userdata, Pixel *buf, uint y, uint pitch, uint n)
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{
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for (; n > 0; --n) {
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memcpy(buf, _screen.dst_ptr + y * _screen.pitch, _screen.width);
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++y;
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buf += pitch;
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}
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}
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// generate a large piece of the world
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static void LargeWorldCallback(void *userdata, Pixel *buf, uint y, uint pitch, uint n)
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{
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ViewPort *vp = (ViewPort *)userdata;
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DrawPixelInfo dpi, *old_dpi;
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int wx, left;
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old_dpi = _cur_dpi;
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_cur_dpi = &dpi;
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dpi.dst_ptr = buf;
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dpi.height = n;
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dpi.width = vp->width;
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dpi.pitch = pitch;
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dpi.zoom = 0;
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dpi.left = 0;
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dpi.top = y;
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left = 0;
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while (vp->width - left != 0) {
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wx = min(vp->width - left, 1600);
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left += wx;
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ViewportDoDraw(vp,
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((left - wx - vp->left) << vp->zoom) + vp->virtual_left,
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((y - vp->top) << vp->zoom) + vp->virtual_top,
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((left - vp->left) << vp->zoom) + vp->virtual_left,
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(((y + n) - vp->top) << vp->zoom) + vp->virtual_top
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);
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}
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_cur_dpi = old_dpi;
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}
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static char *MakeScreenshotName(const char *ext)
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{
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static char filename[256];
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char *base;
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int serial;
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if (_game_mode == GM_EDITOR || _game_mode == GM_MENU || _local_player == PLAYER_SPECTATOR) {
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sprintf(_screenshot_name, "screenshot");
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} else {
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const Player* p = GetPlayer(_local_player);
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SetDParam(0, p->name_1);
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SetDParam(1, p->name_2);
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SetDParam(2, _date);
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GetString(_screenshot_name, STR_4004, lastof(_screenshot_name));
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}
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base = strchr(_screenshot_name, 0);
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base[0] = '.'; strcpy(base + 1, ext);
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serial = 0;
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for (;;) {
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snprintf(filename, sizeof(filename), "%s%s", _paths.personal_dir, _screenshot_name);
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if (!FileExists(filename))
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break;
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sprintf(base, " #%d.%s", ++serial, ext);
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}
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return filename;
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}
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void SetScreenshotType(ScreenshotType t)
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{
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current_screenshot_type = t;
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}
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bool IsScreenshotRequested(void)
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{
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return (current_screenshot_type != SC_NONE);
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}
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|
|
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static bool MakeSmallScreenshot(void)
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|
{
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const ScreenshotFormat *sf = _screenshot_formats + _cur_screenshot_format;
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|
return sf->proc(MakeScreenshotName(sf->extension), CurrentScreenCallback, NULL, _screen.width, _screen.height, 8, _cur_palette);
|
|
}
|
|
|
|
static bool MakeWorldScreenshot(void)
|
|
{
|
|
ViewPort vp;
|
|
const ScreenshotFormat *sf;
|
|
|
|
vp.zoom = 0;
|
|
vp.left = 0;
|
|
vp.top = 0;
|
|
vp.virtual_left = -(int)MapMaxX() * TILE_PIXELS;
|
|
vp.virtual_top = 0;
|
|
vp.virtual_width = (MapMaxX() + MapMaxY()) * TILE_PIXELS;
|
|
vp.width = vp.virtual_width;
|
|
vp.virtual_height = (MapMaxX() + MapMaxY()) * TILE_PIXELS >> 1;
|
|
vp.height = vp.virtual_height;
|
|
|
|
sf = _screenshot_formats + _cur_screenshot_format;
|
|
return sf->proc(MakeScreenshotName(sf->extension), LargeWorldCallback, &vp, vp.width, vp.height, 8, _cur_palette);
|
|
}
|
|
|
|
bool MakeScreenshot(void)
|
|
{
|
|
switch (current_screenshot_type) {
|
|
case SC_VIEWPORT:
|
|
UndrawMouseCursor();
|
|
DrawDirtyBlocks();
|
|
current_screenshot_type = SC_NONE;
|
|
return MakeSmallScreenshot();
|
|
case SC_WORLD:
|
|
current_screenshot_type = SC_NONE;
|
|
return MakeWorldScreenshot();
|
|
default: return false;
|
|
}
|
|
}
|
|
|
|
|
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|