OpenRCT2/src/interface/screenshot.c

541 lines
14 KiB
C

/*****************************************************************************
* Copyright (c) 2014 Ted John
* OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
*
* This file is part of OpenRCT2.
*
* OpenRCT2 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.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*****************************************************************************/
#pragma pack(1)
#include <lodepng/lodepng.h>
#include "../addresses.h"
#include "../config.h"
#include "../drawing/drawing.h"
#include "../game.h"
#include "../localisation/localisation.h"
#include "../openrct2.h"
#include "../platform/platform.h"
#include "../util/util.h"
#include "../windows/error.h"
#include "screenshot.h"
#include "viewport.h"
static const char *_screenshot_format_extension[] = { ".bmp", ".png" };
static int screenshot_dump_bmp();
static int screenshot_dump_png();
/**
*
* rct2: 0x006E3AEC
*/
void screenshot_check()
{
int screenshotIndex;
if (RCT2_GLOBAL(RCT2_ADDRESS_SCREENSHOT_COUNTDOWN, uint8) != 0) {
RCT2_GLOBAL(RCT2_ADDRESS_SCREENSHOT_COUNTDOWN, uint8)--;
if (RCT2_GLOBAL(RCT2_ADDRESS_SCREENSHOT_COUNTDOWN, uint8) == 0) {
update_rain_animation();
screenshotIndex = screenshot_dump();
if (screenshotIndex != -1) {
rct_string_id stringId = 3165;
sprintf((char*)language_get_string(stringId), "SCR%d%s", screenshotIndex, _screenshot_format_extension[gConfigGeneral.screenshot_format]);
RCT2_GLOBAL(0x013CE952, uint16) = stringId;
// RCT2_GLOBAL(0x013CE952, uint16) = STR_SCR_BMP;
// RCT2_GLOBAL(0x013CE952 + 2, uint16) = screenshotIndex;
RCT2_GLOBAL(0x009A8C29, uint8) |= 1;
window_error_open(STR_SCREENSHOT_SAVED_AS, -1);
} else {
window_error_open(STR_SCREENSHOT_FAILED, -1);
}
RCT2_GLOBAL(0x009A8C29, uint8) &= ~1;
redraw_peep_and_rain();
}
}
}
static int screenshot_get_next_path(char *path, int format)
{
char screenshotPath[MAX_PATH];
platform_get_user_directory(screenshotPath, "screenshot");
if (!platform_ensure_directory_exists(screenshotPath)) {
fprintf(stderr, "Unable to save screenshots in OpenRCT2 screenshot directory.\n");
return -1;
}
int i;
for (i = 1; i < 1000; i++) {
RCT2_GLOBAL(0x013CE952, uint16) = i;
// Glue together path and filename
sprintf(path, "%sSCR%d%s", screenshotPath, i, _screenshot_format_extension[format]);
if (!platform_file_exists(path)) {
return i;
}
}
fprintf(stderr, "You have too many saved screenshots.\n");
return -1;
}
int screenshot_dump()
{
switch (gConfigGeneral.screenshot_format) {
case SCREENSHOT_FORMAT_BMP:
return screenshot_dump_bmp();
case SCREENSHOT_FORMAT_PNG:
return screenshot_dump_png();
default:
return -1;
}
}
// Bitmap header structs, for cross platform purposes
typedef struct {
uint16 bfType;
uint32 bfSize;
uint16 bfReserved1;
uint16 bfReserved2;
uint32 bfOffBits;
} BitmapFileHeader;
typedef struct {
uint32 biSize;
sint32 biWidth;
sint32 biHeight;
uint16 biPlanes;
uint16 biBitCount;
uint32 biCompression;
uint32 biSizeImage;
sint32 biXPelsPerMeter;
sint32 biYPelsPerMeter;
uint32 biClrUsed;
uint32 biClrImportant;
} BitmapInfoHeader;
/**
*
* rct2: 0x00683D20
*/
int screenshot_dump_bmp()
{
BitmapFileHeader header;
BitmapInfoHeader info;
int i, y, index, width, height, stride;
char *buffer, path[MAX_PATH], *row;
FILE *fp;
unsigned int bytesWritten;
// Get a free screenshot path
if ((index = screenshot_get_next_path(path, SCREENSHOT_FORMAT_BMP)) == -1)
return -1;
// Open binary file for writing
if ((fp = fopen(path, "wb")) == NULL){
return -1;
}
// Allocate buffer
buffer = malloc(0xFFFF);
if (buffer == NULL) {
//CloseHandle(hFile);
fclose(fp);
return -1;
}
// Get image size
width = RCT2_GLOBAL(RCT2_ADDRESS_SCREEN_WIDTH, uint16);
height = RCT2_GLOBAL(RCT2_ADDRESS_SCREEN_HEIGHT, uint16);
stride = (width + 3) & 0xFFFFFFFC;
// File header
memset(&header, 0, sizeof(header));
header.bfType = 0x4D42;
header.bfSize = height * stride + 1038;
header.bfOffBits = 1038;
bytesWritten = fwrite(&header, sizeof(BitmapFileHeader), 1, fp);
if (bytesWritten != 1) {
fclose(fp);
free(buffer);
}
// Info header
memset(&info, 0, sizeof(info));
info.biSize = sizeof(info);
info.biWidth = width;
info.biHeight = height;
info.biPlanes = 1;
info.biBitCount = 8;
info.biXPelsPerMeter = 2520;
info.biYPelsPerMeter = 2520;
info.biClrUsed = 246;
bytesWritten=fwrite(&info, sizeof(BitmapInfoHeader), 1, fp);
if (bytesWritten != 1) {
fclose(fp);
free(buffer);
}
// Palette
memset(buffer, 0, 246 * 4);
for (i = 0; i < 246; i++) {
buffer[i * 4 + 0] = RCT2_ADDRESS(0x01424680, uint8)[i * 4 + 0];
buffer[i * 4 + 1] = RCT2_ADDRESS(0x01424680, uint8)[i * 4 + 1];
buffer[i * 4 + 2] = RCT2_ADDRESS(0x01424680, uint8)[i * 4 + 2];
}
bytesWritten = fwrite(buffer, sizeof(char), 246*4, fp);
if (bytesWritten != 246*4){
fclose(fp);
free(buffer);
}
// Image, save upside down
rct_drawpixelinfo *dpi = RCT2_ADDRESS(RCT2_ADDRESS_SCREEN_DPI, rct_drawpixelinfo);
for (y = dpi->height - 1; y >= 0; y--) {
row = dpi->bits + y * (dpi->width + dpi->pitch);
memset(buffer, 0, stride);
memcpy(buffer, row, dpi->width);
bytesWritten=fwrite(buffer, sizeof(char), stride, fp);
if (bytesWritten != stride){
fclose(fp);
free(buffer);
}
}
fclose(fp);
free(buffer);
return index;
}
int screenshot_dump_png()
{
rct_drawpixelinfo *dpi = RCT2_ADDRESS(RCT2_ADDRESS_SCREEN_DPI, rct_drawpixelinfo);
int i, index, width, height, stride;
char path[MAX_PATH] = "";
unsigned int error;
unsigned char r, g, b, a = 255;
unsigned char* png;
size_t pngSize;
LodePNGState state;
// Get a free screenshot path
if ((index = screenshot_get_next_path(path, SCREENSHOT_FORMAT_PNG)) == -1)
return -1;
lodepng_state_init(&state);
state.info_raw.colortype = LCT_PALETTE;
// Get image size
width = RCT2_GLOBAL(RCT2_ADDRESS_SCREEN_WIDTH, uint16);
height = RCT2_GLOBAL(RCT2_ADDRESS_SCREEN_HEIGHT, uint16);
stride = (width + 3) & ~3;
for (i = 0; i < 256; i++) {
b = RCT2_ADDRESS(0x01424680, uint8)[i * 4 + 0];
g = RCT2_ADDRESS(0x01424680, uint8)[i * 4 + 1];
r = RCT2_ADDRESS(0x01424680, uint8)[i * 4 + 2];
lodepng_palette_add(&state.info_raw, r, g, b, a);
}
error = lodepng_encode(&png, &pngSize, dpi->bits, stride, dpi->height, &state);
if (error) {
log_error("Unable to save screenshot, %u: %s", lodepng_error_text(error));
index = -1;
} else {
lodepng_save_file(png, pngSize, path);
}
free(png);
return index;
}
bool screenshot_write_png(rct_drawpixelinfo *dpi, const char *path)
{
unsigned int error;
unsigned char* png;
size_t pngSize;
LodePNGState state;
lodepng_state_init(&state);
state.info_raw.colortype = LCT_PALETTE;
// Get image size
int stride = (dpi->width + 3) & ~3;
for (int i = 0; i < 256; i++) {
unsigned char r, g, b, a = 255;
b = RCT2_ADDRESS(0x01424680, uint8)[i * 4 + 0];
g = RCT2_ADDRESS(0x01424680, uint8)[i * 4 + 1];
r = RCT2_ADDRESS(0x01424680, uint8)[i * 4 + 2];
lodepng_palette_add(&state.info_raw, r, g, b, a);
}
error = lodepng_encode(&png, &pngSize, dpi->bits, stride, dpi->height, &state);
if (error != 0) {
free(png);
return false;
} else {
error = lodepng_save_file(png, pngSize, path);
if (error != 0) {
free(png);
return false;
}
}
free(png);
return true;
}
void screenshot_giant()
{
int originalRotation = RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_ROTATION, uint8);
int originalZoom = 0;
rct_window *mainWindow = window_get_main();
if (mainWindow != NULL && mainWindow->viewport != NULL)
originalZoom = mainWindow->viewport->zoom;
int rotation = originalRotation;
int zoom = originalZoom;
int mapSize = RCT2_GLOBAL(RCT2_ADDRESS_MAP_SIZE, uint16);
int resolutionWidth = (mapSize * 32 * 2) >> zoom;
int resolutionHeight = (mapSize * 32 * 1) >> zoom;
resolutionWidth += 8;
resolutionHeight += 128;
rct_viewport viewport;
viewport.x = 0;
viewport.y = 0;
viewport.width = resolutionWidth;
viewport.height = resolutionHeight;
viewport.view_width = viewport.width;
viewport.view_height = viewport.height;
viewport.var_11 = 0;
viewport.flags = 0;
int centreX = (mapSize / 2) * 32 + 16;
int centreY = (mapSize / 2) * 32 + 16;
int x, y;
int z = map_element_height(centreX, centreY) & 0xFFFF;
switch (rotation) {
case 0:
x = centreY - centreX;
y = ((centreX + centreY) / 2) - z;
break;
case 1:
x = -centreY - centreX;
y = ((-centreX + centreY) / 2) - z;
break;
case 2:
x = -centreY + centreX;
y = ((-centreX - centreY) / 2) - z;
break;
case 3:
x = centreY + centreX;
y = ((centreX - centreY) / 2) - z;
break;
}
viewport.view_x = x - ((viewport.view_width << zoom) / 2);
viewport.view_y = y - ((viewport.view_height << zoom) / 2);
viewport.zoom = zoom;
RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_ROTATION, uint8) = rotation;
// Ensure sprites appear regardless of rotation
reset_all_sprite_quadrant_placements();
rct_drawpixelinfo dpi;
dpi.x = 0;
dpi.y = 0;
dpi.width = resolutionWidth;
dpi.height = resolutionHeight;
dpi.pitch = 0;
dpi.zoom_level = 0;
dpi.bits = malloc(dpi.width * dpi.height);
viewport_render(&dpi, &viewport, 0, 0, viewport.width, viewport.height);
// Get a free screenshot path
char path[MAX_PATH];
int index;
if ((index = screenshot_get_next_path(path, SCREENSHOT_FORMAT_PNG)) == -1) {
log_error("Giant screenshot failed, unable to find a suitable destination path.");
window_error_open(STR_SCREENSHOT_FAILED, -1);
return;
}
screenshot_write_png(&dpi, path);
free(dpi.bits);
// Show user that screenshot saved successfully
rct_string_id stringId = 3165;
strcpy((char*)language_get_string(stringId), path_get_filename(path));
RCT2_GLOBAL(RCT2_ADDRESS_COMMON_FORMAT_ARGS, uint16) = stringId;
window_error_open(STR_SCREENSHOT_SAVED_AS, -1);
}
int cmdline_for_screenshot(const char **argv, int argc)
{
bool giantScreenshot = argc == 5 && _stricmp(argv[2], "giant") == 0;
if (argc != 4 && argc != 8 && !giantScreenshot) {
printf("Usage: openrct2 screenshot <file> <ouput_image> <width> <height> [<x> <y> <zoom> <rotation>]\n");
printf("Usage: openrct2 screenshot <file> <ouput_image> giant <zoom> <rotation>\n");
return -1;
}
bool customLocation = false;
bool centreMapX = false;
bool centreMapY = false;
int resolutionWidth, resolutionHeight, customX, customY, customZoom, customRotation;
const char *inputPath = argv[0];
const char *outputPath = argv[1];
if (giantScreenshot) {
resolutionWidth = 0;
resolutionHeight = 0;
customLocation = true;
centreMapX = true;
centreMapY = true;
customZoom = atoi(argv[3]);
customRotation = atoi(argv[4]) & 3;
} else {
resolutionWidth = atoi(argv[2]);
resolutionHeight = atoi(argv[3]);
if (argc == 8) {
customLocation = true;
if (argv[4][0] == 'c')
centreMapX = true;
else
customX = atoi(argv[4]);
if (argv[5][0] == 'c')
centreMapY = true;
else
customY = atoi(argv[5]);
customZoom = atoi(argv[6]);
customRotation = atoi(argv[7]) & 3;
}
}
gOpenRCT2Headless = true;
if (openrct2_initialise()) {
rct2_open_file(inputPath);
RCT2_GLOBAL(RCT2_ADDRESS_RUN_INTRO_TICK_PART, uint8) = 0;
RCT2_GLOBAL(RCT2_ADDRESS_SCREEN_FLAGS, uint8) = SCREEN_FLAGS_PLAYING;
int mapSize = RCT2_GLOBAL(RCT2_ADDRESS_MAP_SIZE, uint16);
if (resolutionWidth == 0 || resolutionHeight == 0) {
resolutionWidth = (mapSize * 32 * 2) >> customZoom;
resolutionHeight = (mapSize * 32 * 1) >> customZoom;
resolutionWidth += 8;
resolutionHeight += 128;
}
rct_viewport viewport;
viewport.x = 0;
viewport.y = 0;
viewport.width = resolutionWidth;
viewport.height = resolutionHeight;
viewport.view_width = viewport.width;
viewport.view_height = viewport.height;
viewport.var_11 = 0;
viewport.flags = 0;
if (customLocation) {
if (centreMapX)
customX = (mapSize / 2) * 32 + 16;
if (centreMapY)
customY = (mapSize / 2) * 32 + 16;
int x, y;
int z = map_element_height(customX, customY) & 0xFFFF;
switch (customRotation) {
case 0:
x = customY - customX;
y = ((customX + customY) / 2) - z;
break;
case 1:
x = -customY - customX;
y = ((-customX + customY) / 2) - z;
break;
case 2:
x = -customY + customX;
y = ((-customX - customY) / 2) - z;
break;
case 3:
x = customY + customX;
y = ((customX - customY) / 2) - z;
break;
}
viewport.view_x = x - ((viewport.view_width << customZoom) / 2);
viewport.view_y = y - ((viewport.view_height << customZoom) / 2);
viewport.zoom = customZoom;
RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_ROTATION, uint8) = customRotation;
} else {
viewport.view_x = RCT2_GLOBAL(RCT2_ADDRESS_SAVED_VIEW_X, sint16) - (viewport.view_width / 2);
viewport.view_y = RCT2_GLOBAL(RCT2_ADDRESS_SAVED_VIEW_Y, sint16) - (viewport.view_height / 2);
viewport.zoom = RCT2_GLOBAL(RCT2_ADDRESS_SAVED_VIEW_ZOOM_AND_ROTATION, uint16) & 0xFF;
RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_ROTATION, uint8) = RCT2_GLOBAL(RCT2_ADDRESS_SAVED_VIEW_ZOOM_AND_ROTATION, uint16) >> 8;
}
// Ensure sprites appear regardless of rotation
reset_all_sprite_quadrant_placements();
rct_drawpixelinfo dpi;
dpi.x = 0;
dpi.y = 0;
dpi.width = resolutionWidth;
dpi.height = resolutionHeight;
dpi.pitch = 0;
dpi.zoom_level = 0;
dpi.bits = malloc(dpi.width * dpi.height);
viewport_render(&dpi, &viewport, 0, 0, viewport.width, viewport.height);
screenshot_write_png(&dpi, outputPath);
free(dpi.bits);
}
openrct2_dispose();
return 1;
}