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Location: cpp/openttd-patchpack/source/src/gfx.cpp
r10045:f6d1b92735b7
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(svn r14205) -Update: WebTranslator2 update to 2008-08-31 19:47:56
bulgarian - 12 fixed by thetitan (12)
catalan - 49 fixed by arnaullv (49)
czech - 4 fixed, 15 changed by Hadez (19)
dutch - 2 fixed, 5 changed by habell (7)
french - 2 fixed, 1 changed by belugas (1), glx (2)
galician - 75 fixed, 54 changed by Condex (129)
german - 10 fixed, 1 changed by dih (11)
italian - 5 fixed, 5 changed by lorenzodv (10)
korean - 14 fixed by leejaeuk5 (14)
slovenian - 6 fixed by Necrolyte (6)
turkish - 18 fixed by jnmbk (18)
ukrainian - 2 fixed by mad (2)
bulgarian - 12 fixed by thetitan (12)
catalan - 49 fixed by arnaullv (49)
czech - 4 fixed, 15 changed by Hadez (19)
dutch - 2 fixed, 5 changed by habell (7)
french - 2 fixed, 1 changed by belugas (1), glx (2)
galician - 75 fixed, 54 changed by Condex (129)
german - 10 fixed, 1 changed by dih (11)
italian - 5 fixed, 5 changed by lorenzodv (10)
korean - 14 fixed by leejaeuk5 (14)
slovenian - 6 fixed by Necrolyte (6)
turkish - 18 fixed by jnmbk (18)
ukrainian - 2 fixed by mad (2)
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/** @file gfx.cpp Handling of drawing text and other gfx related stuff. */
#include "stdafx.h"
#include "openttd.h"
#include "gfx_func.h"
#include "spritecache.h"
#include "variables.h"
#include "fontcache.h"
#include "genworld.h"
#include "debug.h"
#include "zoom_func.h"
#include "texteff.hpp"
#include "blitter/factory.hpp"
#include "video/video_driver.hpp"
#include "strings_func.h"
#include "core/math_func.hpp"
#include "settings_type.h"
#include "core/alloc_func.hpp"
#include "core/sort_func.hpp"
#include "landscape_type.h"
#include "network/network_func.h"
#include "table/palettes.h"
#include "table/sprites.h"
#include "table/control_codes.h"
byte _dirkeys; ///< 1 = left, 2 = up, 4 = right, 8 = down
bool _fullscreen;
CursorVars _cursor;
bool _ctrl_pressed; ///< Is Ctrl pressed?
bool _shift_pressed; ///< Is Shift pressed?
byte _fast_forward;
bool _left_button_down; ///< Is left mouse button pressed?
bool _left_button_clicked; ///< Is left mouse button clicked?
bool _right_button_down; ///< Is right mouse button pressed?
bool _right_button_clicked; ///< Is right mouse button clicked?
DrawPixelInfo _screen;
bool _screen_disable_anim = false; ///< Disable palette animation (important for 32bpp-anim blitter during giant screenshot)
bool _exit_game;
bool _networking; ///< are we in networking mode?
byte _game_mode;
int8 _pause_game;
int _pal_first_dirty;
int _pal_count_dirty;
Colour _cur_palette[256];
byte _stringwidth_table[FS_END][224]; ///< Cache containing width of often used characters. @see GetCharacterWidth()
DrawPixelInfo *_cur_dpi;
byte _colour_gradient[COLOUR_END][8];
static void GfxMainBlitter(const Sprite *sprite, int x, int y, BlitterMode mode, const SubSprite *sub = NULL);
FontSize _cur_fontsize;
static FontSize _last_fontsize;
static uint8 _cursor_backup[64 * 64 * 4];
/**
* The rect for repaint.
*
* This rectangle defines the area which should be repaint by the video driver.
*
* @ingroup dirty
*/
static Rect _invalid_rect;
static const byte *_color_remap_ptr;
static byte _string_colorremap[3];
enum {
DIRTY_BLOCK_HEIGHT = 8,
DIRTY_BLOCK_WIDTH = 64,
};
static uint _dirty_bytes_per_line = 0;
static byte *_dirty_blocks = NULL;
void GfxScroll(int left, int top, int width, int height, int xo, int yo)
{
Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
if (xo == 0 && yo == 0) return;
if (_cursor.visible) UndrawMouseCursor();
#ifdef ENABLE_NETWORK
NetworkUndrawChatMessage();
#endif /* ENABLE_NETWORK */
blitter->ScrollBuffer(_screen.dst_ptr, left, top, width, height, xo, yo);
/* This part of the screen is now dirty. */
_video_driver->MakeDirty(left, top, width, height);
}
/**
* Applies a certain FillRectMode-operation to a rectangle [left, right] x [top, bottom] on the screen.
*
* @pre dpi->zoom == ZOOM_LVL_NORMAL, right >= left, bottom >= top
* @param left Minimum X (inclusive)
* @param top Minimum Y (inclusive)
* @param right Maximum X (inclusive)
* @param bottom Maximum Y (inclusive)
* @param color A 8 bit palette index (FILLRECT_OPAQUE and FILLRECT_CHECKER) or a recolor spritenumber (FILLRECT_RECOLOR)
* @param mode
* FILLRECT_OPAQUE: Fill the rectangle with the specified color
* FILLRECT_CHECKER: Like FILLRECT_OPAQUE, but only draw every second pixel (used to grey out things)
* FILLRECT_RECOLOR: Apply a recolor sprite to every pixel in the rectangle currently on screen
*/
void GfxFillRect(int left, int top, int right, int bottom, int color, FillRectMode mode)
{
Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
const DrawPixelInfo *dpi = _cur_dpi;
void *dst;
const int otop = top;
const int oleft = left;
if (dpi->zoom != ZOOM_LVL_NORMAL) return;
if (left > right || top > bottom) return;
if (right < dpi->left || left >= dpi->left + dpi->width) return;
if (bottom < dpi->top || top >= dpi->top + dpi->height) return;
if ( (left -= dpi->left) < 0) left = 0;
right = right - dpi->left + 1;
if (right > dpi->width) right = dpi->width;
right -= left;
assert(right > 0);
if ( (top -= dpi->top) < 0) top = 0;
bottom = bottom - dpi->top + 1;
if (bottom > dpi->height) bottom = dpi->height;
bottom -= top;
assert(bottom > 0);
dst = blitter->MoveTo(dpi->dst_ptr, left, top);
switch (mode) {
default: // FILLRECT_OPAQUE
blitter->DrawRect(dst, right, bottom, (uint8)color);
break;
case FILLRECT_RECOLOR:
blitter->DrawColorMappingRect(dst, right, bottom, GB(color, 0, PALETTE_WIDTH));
break;
case FILLRECT_CHECKER: {
byte bo = (oleft - left + dpi->left + otop - top + dpi->top) & 1;
do {
for (int i = (bo ^= 1); i < right; i += 2) blitter->SetPixel(dst, i, 0, (uint8)color);
dst = blitter->MoveTo(dst, 0, 1);
} while (--bottom > 0);
break;
}
}
}
void GfxDrawLine(int x, int y, int x2, int y2, int color)
{
Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
DrawPixelInfo *dpi = _cur_dpi;
x -= dpi->left;
x2 -= dpi->left;
y -= dpi->top;
y2 -= dpi->top;
/* Check clipping */
if (x < 0 && x2 < 0) return;
if (y < 0 && y2 < 0) return;
if (x > dpi->width && x2 > dpi->width) return;
if (y > dpi->height && y2 > dpi->height) return;
blitter->DrawLine(dpi->dst_ptr, x, y, x2, y2, dpi->width, dpi->height, color);
}
void GfxDrawLineUnscaled(int x, int y, int x2, int y2, int color)
{
Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
DrawPixelInfo *dpi = _cur_dpi;
x -= dpi->left;
x2 -= dpi->left;
y -= dpi->top;
y2 -= dpi->top;
/* Check clipping */
if (x < 0 && x2 < 0) return;
if (y < 0 && y2 < 0) return;
if (x > dpi->width && x2 > dpi->width) return;
if (y > dpi->height && y2 > dpi->height) return;
blitter->DrawLine(dpi->dst_ptr, UnScaleByZoom(x, dpi->zoom), UnScaleByZoom(y, dpi->zoom),
UnScaleByZoom(x2, dpi->zoom), UnScaleByZoom(y2, dpi->zoom),
UnScaleByZoom(dpi->width, dpi->zoom), UnScaleByZoom(dpi->height, dpi->zoom), color);
}
/**
* Draws the projection of a parallelepiped.
* This can be used to draw boxes in world coordinates.
*
* @param x Screen X-coordinate of top front corner.
* @param y Screen Y-coordinate of top front corner.
* @param dx1 Screen X-length of first edge.
* @param dy1 Screen Y-length of first edge.
* @param dx2 Screen X-length of second edge.
* @param dy2 Screen Y-length of second edge.
* @param dx3 Screen X-length of third edge.
* @param dy3 Screen Y-length of third edge.
*/
void DrawBox(int x, int y, int dx1, int dy1, int dx2, int dy2, int dx3, int dy3)
{
/* ....
* .. ....
* .. ....
* .. ^
* <--__(dx1,dy1) /(dx2,dy2)
* : --__ / :
* : --__ / :
* : *(x,y) :
* : | :
* : | ..
* .... |(dx3,dy3)
* .... | ..
* ....V.
*/
static const byte color = 255;
GfxDrawLineUnscaled(x, y, x + dx1, y + dy1, color);
GfxDrawLineUnscaled(x, y, x + dx2, y + dy2, color);
GfxDrawLineUnscaled(x, y, x + dx3, y + dy3, color);
GfxDrawLineUnscaled(x + dx1, y + dy1, x + dx1 + dx2, y + dy1 + dy2, color);
GfxDrawLineUnscaled(x + dx1, y + dy1, x + dx1 + dx3, y + dy1 + dy3, color);
GfxDrawLineUnscaled(x + dx2, y + dy2, x + dx2 + dx1, y + dy2 + dy1, color);
GfxDrawLineUnscaled(x + dx2, y + dy2, x + dx2 + dx3, y + dy2 + dy3, color);
GfxDrawLineUnscaled(x + dx3, y + dy3, x + dx3 + dx1, y + dy3 + dy1, color);
GfxDrawLineUnscaled(x + dx3, y + dy3, x + dx3 + dx2, y + dy3 + dy2, color);
}
/** Truncate a given string to a maximum width if neccessary.
* If the string is truncated, add three dots ('...') to show this.
* @param *str string that is checked and possibly truncated
* @param maxw maximum width in pixels of the string
* @return new width of (truncated) string */
static int TruncateString(char *str, int maxw)
{
int w = 0;
FontSize size = _cur_fontsize;
int ddd, ddd_w;
WChar c;
char *ddd_pos;
ddd_w = ddd = GetCharacterWidth(size, '.') * 3;
for (ddd_pos = str; (c = Utf8Consume((const char **)&str)) != '\0'; ) {
if (IsPrintable(c)) {
w += GetCharacterWidth(size, c);
if (w >= maxw) {
/* string got too big... insert dotdotdot, but make sure we do not
* print anything beyond the string termination character. */
for (int i = 0; *ddd_pos != '\0' && i < 3; i++, ddd_pos++) *ddd_pos = '.';
*ddd_pos = '\0';
return ddd_w;
}
} else {
if (c == SCC_SETX) {
w = *str;
str++;
} else if (c == SCC_SETXY) {
w = *str;
str += 2;
} else if (c == SCC_TINYFONT) {
size = FS_SMALL;
ddd = GetCharacterWidth(size, '.') * 3;
} else if (c == SCC_BIGFONT) {
size = FS_LARGE;
ddd = GetCharacterWidth(size, '.') * 3;
}
}
/* Remember the last position where three dots fit. */
if (w + ddd < maxw) {
ddd_w = w + ddd;
ddd_pos = str;
}
}
return w;
}
/**
* Write string to output buffer, truncating it to specified maximal width in pixels if it is too long.
*
* @param src String to truncate
* @param dest Start of character output buffer where truncated string is stored
* @param maxw Maximal allowed length of the string in pixels
* @param last Address of last character in output buffer
*
* @return Actual width of the (possibly) truncated string in pixels
*/
static inline int TruncateStringID(StringID src, char *dest, int maxw, const char* last)
{
GetString(dest, src, last);
return TruncateString(dest, maxw);
}
/**
* Draw string starting at position (x,y).
*
* @param x X position to start drawing
* @param y Y position to start drawing
* @param str String to draw
* @param color Color used for drawing the string, see DoDrawString() for details
*
* @return Horizontal coordinate after drawing the string
*/
int DrawString(int x, int y, StringID str, uint16 color)
{
char buffer[DRAW_STRING_BUFFER];
GetString(buffer, str, lastof(buffer));
return DoDrawString(buffer, x, y, color);
}
/**
* Draw string, possibly truncated to make it fit in its allocated space
*
* @param x X position to start drawing
* @param y Y position to start drawing
* @param str String to draw
* @param color Color used for drawing the string, see DoDrawString() for details
* @param maxw Maximal width of the string
*
* @return Horizontal coordinate after drawing the (possibly truncated) string
*/
int DrawStringTruncated(int x, int y, StringID str, uint16 color, uint maxw)
{
char buffer[DRAW_STRING_BUFFER];
TruncateStringID(str, buffer, maxw, lastof(buffer));
return DoDrawString(buffer, x, y, color);
}
/**
* Draw string right-aligned.
*
* @param x Right-most x position of the string
* @param y Y position of the string
* @param str String to draw
* @param color Color used for drawing the string, see DoDrawString() for details
*
* @return Width of drawn string in pixels
*/
int DrawStringRightAligned(int x, int y, StringID str, uint16 color)
{
char buffer[DRAW_STRING_BUFFER];
int w;
GetString(buffer, str, lastof(buffer));
w = GetStringBoundingBox(buffer).width;
DoDrawString(buffer, x - w, y, color);
return w;
}
/**
* Draw string right-aligned, possibly truncated to make it fit in its allocated space
*
* @param x Right-most x position to start drawing
* @param y Y position to start drawing
* @param str String to draw
* @param color Color used for drawing the string, see DoDrawString() for details
* @param maxw Maximal width of the string
*/
void DrawStringRightAlignedTruncated(int x, int y, StringID str, uint16 color, uint maxw)
{
char buffer[DRAW_STRING_BUFFER];
TruncateStringID(str, buffer, maxw, lastof(buffer));
DoDrawString(buffer, x - GetStringBoundingBox(buffer).width, y, color);
}
/**
* Draw string right-aligned with a line underneath it.
*
* @param x Right-most x position of the string
* @param y Y position of the string
* @param str String to draw
* @param color Color used for drawing the string, see DoDrawString() for details
*/
void DrawStringRightAlignedUnderline(int x, int y, StringID str, uint16 color)
{
int w = DrawStringRightAligned(x, y, str, color);
GfxFillRect(x - w, y + 10, x, y + 10, _string_colorremap[1]);
}
/**
* Draw string centered.
*
* @param x X position of center of the string
* @param y Y position of center of the string
* @param str String to draw
* @param color Color used for drawing the string, see DoDrawString() for details
*
* @return Width of the drawn string in pixels
*/
int DrawStringCentered(int x, int y, StringID str, uint16 color)
{
char buffer[DRAW_STRING_BUFFER];
int w;
GetString(buffer, str, lastof(buffer));
w = GetStringBoundingBox(buffer).width;
DoDrawString(buffer, x - w / 2, y, color);
return w;
}
/**
* Draw string centered, possibly truncated to fit in the assigned space.
*
* @param xl Left-most x position
* @param xr Right-most x position
* @param y Y position of the string
* @param str String to draw
* @param color Color used for drawing the string, see DoDrawString() for details
*
* @return Right-most coordinate of the (possibly truncated) drawn string
*/
int DrawStringCenteredTruncated(int xl, int xr, int y, StringID str, uint16 color)
{
char buffer[DRAW_STRING_BUFFER];
int w = TruncateStringID(str, buffer, xr - xl, lastof(buffer));
return DoDrawString(buffer, (xl + xr - w) / 2, y, color);
}
/**
* Draw string centered.
*
* @param x X position of center of the string
* @param y Y position of center of the string
* @param str String to draw
* @param color Color used for drawing the string, see DoDrawString() for details
*
* @return Width of the drawn string in pixels
*/
int DoDrawStringCentered(int x, int y, const char *str, uint16 color)
{
int w = GetStringBoundingBox(str).width;
DoDrawString(str, x - w / 2, y, color);
return w;
}
/**
* Draw string centered, with additional line underneath it
*
* @param x X position of center of the string
* @param y Y position of center of the string
* @param str String to draw
* @param color Color used for drawing the string, see DoDrawString() for details
*/
void DrawStringCenterUnderline(int x, int y, StringID str, uint16 color)
{
int w = DrawStringCentered(x, y, str, color);
GfxFillRect(x - (w >> 1), y + 10, x - (w >> 1) + w, y + 10, _string_colorremap[1]);
}
/**
* Draw string centered possibly truncated, with additional line underneath it
*
* @param xl Left x position of the string
* @param xr Right x position of the string
* @param y Y position of center of the string
* @param str String to draw
* @param color Color used for drawing the string, see DoDrawString() for details
*/
void DrawStringCenterUnderlineTruncated(int xl, int xr, int y, StringID str, uint16 color)
{
int w = DrawStringCenteredTruncated(xl, xr, y, str, color);
GfxFillRect((xl + xr - w) / 2, y + 10, (xl + xr + w) / 2, y + 10, _string_colorremap[1]);
}
/**
* 'Correct' a string to a maximum length. Longer strings will be cut into
* additional lines at whitespace characters if possible. The string parameter
* is modified with terminating characters mid-string which are the
* placeholders for the newlines.
* The string WILL be truncated if there was no whitespace for the current
* line's maximum width.
*
* @note To know if the terminating '\0' is the string end or just a
* newline, the returned 'num' value should be consulted. The num'th '\0',
* starting with index 0 is the real string end.
*
* @param str string to check and correct for length restrictions
* @param maxw the maximum width the string can have on one line
* @return return a 32bit wide number consisting of 2 packed values:
* 0 - 15 the number of lines ADDED to the string
* 16 - 31 the fontsize in which the length calculation was done at
*/
uint32 FormatStringLinebreaks(char *str, int maxw)
{
FontSize size = _cur_fontsize;
int num = 0;
assert(maxw > 0);
for (;;) {
char *last_space = NULL;
int w = 0;
for (;;) {
WChar c = Utf8Consume((const char **)&str);
/* whitespace is where we will insert the line-break */
if (IsWhitespace(c)) last_space = str;
if (IsPrintable(c)) {
w += GetCharacterWidth(size, c);
/* string is longer than maximum width so we need to decide what to
* do. We can do two things:
* 1. If no whitespace was found at all up until now (on this line) then
* we will truncate the string and bail out.
* 2. In all other cases force a linebreak at the last seen whitespace */
if (w > maxw) {
if (last_space == NULL) {
*Utf8PrevChar(str) = '\0';
return num + (size << 16);
}
str = last_space;
break;
}
} else {
switch (c) {
case '\0': return num + (size << 16); break;
case SCC_SETX: str++; break;
case SCC_SETXY: str += 2; break;
case SCC_TINYFONT: size = FS_SMALL; break;
case SCC_BIGFONT: size = FS_LARGE; break;
case '\n': goto end_of_inner_loop;
}
}
}
end_of_inner_loop:
/* String didn't fit on line (or a '\n' was encountered), so 'dummy' terminate
* and increase linecount. We use Utf8PrevChar() as also non 1 char long
* whitespace seperators are supported */
num++;
char *s = Utf8PrevChar(str);
*s++ = '\0';
/* In which case (see above) we will shift remainder to left and close the gap */
if (str - s >= 1) {
for (; str[-1] != '\0';) *s++ = *str++;
}
}
}
/** Calculates height of string (in pixels). Accepts multiline string with '\0' as separators.
* @param src string to check
* @param num number of extra lines (output of FormatStringLinebreaks())
* @note assumes text won't be truncated. FormatStringLinebreaks() is a good way to ensure that.
* @return height of pixels of string when it is drawn
*/
static int GetMultilineStringHeight(const char *src, int num)
{
int maxy = 0;
int y = 0;
int fh = GetCharacterHeight(_cur_fontsize);
for (;;) {
WChar c = Utf8Consume(&src);
switch (c) {
case 0: y += fh; if (--num < 0) return maxy; break;
case '\n': y += fh; break;
case SCC_SETX: src++; break;
case SCC_SETXY: src++; y = (int)*src++; break;
case SCC_TINYFONT: fh = GetCharacterHeight(FS_SMALL); break;
case SCC_BIGFONT: fh = GetCharacterHeight(FS_LARGE); break;
default: maxy = max<int>(maxy, y + fh); break;
}
}
}
/** Calculates height of string (in pixels). The string is changed to a multiline string if needed.
* @param str string to check
* @param maxw maximum string width
* @return height of pixels of string when it is drawn
*/
int GetStringHeight(StringID str, int maxw)
{
char buffer[DRAW_STRING_BUFFER];
GetString(buffer, str, lastof(buffer));
uint32 tmp = FormatStringLinebreaks(buffer, maxw);
return GetMultilineStringHeight(buffer, GB(tmp, 0, 16));
}
/** Draw a given string with the centre around the given (x,y) coordinates
* @param x Centre the string around this pixel width
* @param y Centre the string around this pixel height
* @param str String to draw
* @param maxw Maximum width the string can have before it is wrapped */
void DrawStringMultiCenter(int x, int y, StringID str, int maxw)
{
char buffer[DRAW_STRING_BUFFER];
uint32 tmp;
int num, w, mt;
const char *src;
WChar c;
GetString(buffer, str, lastof(buffer));
tmp = FormatStringLinebreaks(buffer, maxw);
num = GB(tmp, 0, 16);
mt = GetCharacterHeight((FontSize)GB(tmp, 16, 16));
y -= (mt >> 1) * num;
src = buffer;
for (;;) {
w = GetStringBoundingBox(src).width;
DoDrawString(src, x - (w >> 1), y, 0xFE, true);
_cur_fontsize = _last_fontsize;
for (;;) {
c = Utf8Consume(&src);
if (c == 0) {
y += mt;
if (--num < 0) {
_cur_fontsize = FS_NORMAL;
return;
}
break;
} else if (c == SCC_SETX) {
src++;
} else if (c == SCC_SETXY) {
src += 2;
}
}
}
}
uint DrawStringMultiLine(int x, int y, StringID str, int maxw, int maxh)
{
char buffer[DRAW_STRING_BUFFER];
uint32 tmp;
int num, mt;
uint total_height;
const char *src;
WChar c;
GetString(buffer, str, lastof(buffer));
tmp = FormatStringLinebreaks(buffer, maxw);
num = GB(tmp, 0, 16);
mt = GetCharacterHeight((FontSize)GB(tmp, 16, 16));
total_height = (num + 1) * mt;
if (maxh != -1 && (int)total_height > maxh) {
/* Check there's room enough for at least one line. */
if (maxh < mt) return 0;
num = maxh / mt - 1;
total_height = (num + 1) * mt;
}
src = buffer;
for (;;) {
DoDrawString(src, x, y, 0xFE, true);
_cur_fontsize = _last_fontsize;
for (;;) {
c = Utf8Consume(&src);
if (c == 0) {
y += mt;
if (--num < 0) {
_cur_fontsize = FS_NORMAL;
return total_height;
}
break;
} else if (c == SCC_SETX) {
src++;
} else if (c == SCC_SETXY) {
src += 2;
}
}
}
}
/** Return the string dimension in pixels. The height and width are returned
* in a single Dimension value. TINYFONT, BIGFONT modifiers are only
* supported as the first character of the string. The returned dimensions
* are therefore a rough estimation correct for all the current strings
* but not every possible combination
* @param str string to calculate pixel-width
* @return string width and height in pixels */
Dimension GetStringBoundingBox(const char *str)
{
FontSize size = _cur_fontsize;
Dimension br;
int max_width;
WChar c;
br.width = br.height = max_width = 0;
for (;;) {
c = Utf8Consume(&str);
if (c == 0) break;
if (IsPrintable(c)) {
br.width += GetCharacterWidth(size, c);
} else {
switch (c) {
case SCC_SETX: br.width += (byte)*str++; break;
case SCC_SETXY:
br.width += (byte)*str++;
br.height += (byte)*str++;
break;
case SCC_TINYFONT: size = FS_SMALL; break;
case SCC_BIGFONT: size = FS_LARGE; break;
case '\n':
br.height += GetCharacterHeight(size);
if (br.width > max_width) max_width = br.width;
br.width = 0;
break;
}
}
}
br.height += GetCharacterHeight(size);
br.width = max(br.width, max_width);
return br;
}
/**
* Draw single character horizontally centered around (x,y)
* @param c Character (glyph) to draw
* @param x X position to draw character
* @param y Y position to draw character
* @param real_color Colour to use, see DoDrawString() for details
*/
void DrawCharCentered(WChar c, int x, int y, uint16 real_color)
{
FontSize size = FS_NORMAL;
byte color = real_color & 0xFF;
int w = GetCharacterWidth(size, c);
_string_colorremap[1] = _string_colormap[_use_palette][color].text;
_string_colorremap[2] = _string_colormap[_use_palette][color].shadow;
_color_remap_ptr = _string_colorremap;
GfxMainBlitter(GetGlyph(size, c), x - w / 2, y, BM_COLOUR_REMAP);
}
/** Draw a string at the given coordinates with the given colour.
* While drawing the string, parse it in case some formatting is specified,
* like new colour, new size or even positionning.
* @param string The string to draw
* @param x Offset from left side of the screen
* @param y Offset from top side of the screen
* @param real_colour Colour of the string, see _string_colormap in
* table/palettes.h or docs/ottd-colourtext-palette.png or the enum TextColour in gfx_type.h
* @param parse_string_also_when_clipped
* By default, always test the available space where to draw the string.
* When in multipline drawing, it would already be done,
* so no need to re-perform the same kind (more or less) of verifications.
* It's not only an optimisation, it's also a way to ensures the string will be parsed
* (as there are certain side effects on global variables, which are important for the next line)
* @return the x-coordinates where the drawing has finished.
* If nothing is drawn, the originally passed x-coordinate is returned
*/
int DoDrawString(const char *string, int x, int y, uint16 real_colour, bool parse_string_also_when_clipped)
{
DrawPixelInfo *dpi = _cur_dpi;
FontSize size = _cur_fontsize;
WChar c;
int xo = x, yo = y;
byte colour = real_colour & 0xFF; // extract the 8 bits colour index that is required for the mapping
byte previous_colour = colour;
if (!parse_string_also_when_clipped) {
/* in "mode multiline", the available space have been verified. Not in regular one.
* So if the string cannot be drawn, return the original start to say so.*/
if (x >= dpi->left + dpi->width || y >= dpi->top + dpi->height) return x;
if (colour != TC_INVALID) { // the invalid colour flag test should not really occur. But better be safe
switch_colour:;
if (real_colour & IS_PALETTE_COLOR) {
_string_colorremap[1] = colour;
_string_colorremap[2] = (_use_palette == PAL_DOS) ? 1 : 215;
} else {
_string_colorremap[1] = _string_colormap[_use_palette][colour].text;
_string_colorremap[2] = _string_colormap[_use_palette][colour].shadow;
}
_color_remap_ptr = _string_colorremap;
}
}
check_bounds:
if (y + 19 <= dpi->top || dpi->top + dpi->height <= y) {
skip_char:;
for (;;) {
c = Utf8Consume(&string);
if (!IsPrintable(c)) goto skip_cont;
}
}
for (;;) {
c = Utf8Consume(&string);
skip_cont:;
if (c == 0) {
_last_fontsize = size;
return x; // Nothing more to draw, get out. And here is the new x position
}
if (IsPrintable(c)) {
if (x >= dpi->left + dpi->width) goto skip_char;
if (x + 26 >= dpi->left) {
GfxMainBlitter(GetGlyph(size, c), x, y, BM_COLOUR_REMAP);
}
x += GetCharacterWidth(size, c);
} else if (c == '\n') { // newline = {}
x = xo; // We require a new line, so the x coordinate is reset
y += GetCharacterHeight(size);
goto check_bounds;
} else if (c >= SCC_BLUE && c <= SCC_BLACK) { // change colour?
previous_colour = colour;
colour = (byte)(c - SCC_BLUE);
goto switch_colour;
} else if (c == SCC_PREVIOUS_COLOUR) { // revert to the previous colour
Swap(colour, previous_colour);
goto switch_colour;
} else if (c == SCC_SETX) { // {SETX}
x = xo + (byte)*string++;
} else if (c == SCC_SETXY) {// {SETXY}
x = xo + (byte)*string++;
y = yo + (byte)*string++;
} else if (c == SCC_TINYFONT) { // {TINYFONT}
size = FS_SMALL;
} else if (c == SCC_BIGFONT) { // {BIGFONT}
size = FS_LARGE;
} else {
DEBUG(misc, 0, "[utf8] unknown string command character %d", c);
}
}
}
/**
* Draw the string of the character buffer, starting at position (x,y) with a given maximal width.
* String is truncated if it is too long.
*
* @param str Character buffer containing the string
* @param x Left-most x coordinate to start drawing
* @param y Y coordinate to draw the string
* @param color Colour to use, see DoDrawString() for details.
* @param maxw Maximal width in pixels that may be used for drawing
*
* @return Right-most x position after drawing the (possibly truncated) string
*/
int DoDrawStringTruncated(const char *str, int x, int y, uint16 color, uint maxw)
{
char buffer[DRAW_STRING_BUFFER];
ttd_strlcpy(buffer, str, sizeof(buffer));
TruncateString(buffer, maxw);
return DoDrawString(buffer, x, y, color);
}
/**
* Draw a sprite.
* @param img Image number to draw
* @param pal Palette to use.
* @param x Left coordinate of image
* @param y Top coordinate of image
* @param sub If available, draw only specified part of the sprite
*/
void DrawSprite(SpriteID img, SpriteID pal, int x, int y, const SubSprite *sub)
{
if (HasBit(img, PALETTE_MODIFIER_TRANSPARENT)) {
_color_remap_ptr = GetNonSprite(GB(pal, 0, PALETTE_WIDTH)) + 1;
GfxMainBlitter(GetSprite(GB(img, 0, SPRITE_WIDTH)), x, y, BM_TRANSPARENT, sub);
} else if (pal != PAL_NONE) {
_color_remap_ptr = GetNonSprite(GB(pal, 0, PALETTE_WIDTH)) + 1;
GfxMainBlitter(GetSprite(GB(img, 0, SPRITE_WIDTH)), x, y, BM_COLOUR_REMAP, sub);
} else {
GfxMainBlitter(GetSprite(GB(img, 0, SPRITE_WIDTH)), x, y, BM_NORMAL, sub);
}
}
static void GfxMainBlitter(const Sprite *sprite, int x, int y, BlitterMode mode, const SubSprite *sub)
{
const DrawPixelInfo *dpi = _cur_dpi;
Blitter::BlitterParams bp;
/* Amount of pixels to clip from the source sprite */
int clip_left = (sub != NULL ? max(0, -sprite->x_offs + sub->left ) : 0);
int clip_top = (sub != NULL ? max(0, -sprite->y_offs + sub->top ) : 0);
int clip_right = (sub != NULL ? max(0, sprite->width - (-sprite->x_offs + sub->right + 1)) : 0);
int clip_bottom = (sub != NULL ? max(0, sprite->height - (-sprite->y_offs + sub->bottom + 1)) : 0);
if (clip_left + clip_right >= sprite->width) return;
if (clip_top + clip_bottom >= sprite->height) return;
/* Move to the correct offset */
x += sprite->x_offs;
y += sprite->y_offs;
/* Copy the main data directly from the sprite */
bp.sprite = sprite->data;
bp.sprite_width = sprite->width;
bp.sprite_height = sprite->height;
bp.width = UnScaleByZoom(sprite->width - clip_left - clip_right, dpi->zoom);
bp.height = UnScaleByZoom(sprite->height - clip_top - clip_bottom, dpi->zoom);
bp.top = 0;
bp.left = 0;
bp.skip_left = UnScaleByZoomLower(clip_left, dpi->zoom);
bp.skip_top = UnScaleByZoomLower(clip_top, dpi->zoom);
x += ScaleByZoom(bp.skip_left, dpi->zoom);
y += ScaleByZoom(bp.skip_top, dpi->zoom);
bp.dst = dpi->dst_ptr;
bp.pitch = dpi->pitch;
bp.remap = _color_remap_ptr;
assert(sprite->width > 0);
assert(sprite->height > 0);
if (bp.width <= 0) return;
if (bp.height <= 0) return;
y -= dpi->top;
/* Check for top overflow */
if (y < 0) {
bp.height -= -UnScaleByZoom(y, dpi->zoom);
if (bp.height <= 0) return;
bp.skip_top += -UnScaleByZoom(y, dpi->zoom);
y = 0;
} else {
bp.top = UnScaleByZoom(y, dpi->zoom);
}
/* Check for bottom overflow */
y += ScaleByZoom(bp.height, dpi->zoom) - dpi->height;
if (y > 0) {
bp.height -= UnScaleByZoom(y, dpi->zoom);
if (bp.height <= 0) return;
}
x -= dpi->left;
/* Check for left overflow */
if (x < 0) {
bp.width -= -UnScaleByZoom(x, dpi->zoom);
if (bp.width <= 0) return;
bp.skip_left += -UnScaleByZoom(x, dpi->zoom);
x = 0;
} else {
bp.left = UnScaleByZoom(x, dpi->zoom);
}
/* Check for right overflow */
x += ScaleByZoom(bp.width, dpi->zoom) - dpi->width;
if (x > 0) {
bp.width -= UnScaleByZoom(x, dpi->zoom);
if (bp.width <= 0) return;
}
assert(bp.skip_left + bp.width <= UnScaleByZoom(sprite->width, dpi->zoom));
assert(bp.skip_top + bp.height <= UnScaleByZoom(sprite->height, dpi->zoom));
BlitterFactoryBase::GetCurrentBlitter()->Draw(&bp, mode, dpi->zoom);
}
void DoPaletteAnimations();
void GfxInitPalettes()
{
memcpy(_cur_palette, _palettes[_use_palette], sizeof(_cur_palette));
DoPaletteAnimations();
_pal_first_dirty = 0;
_pal_count_dirty = 256;
}
#define EXTR(p, q) (((uint16)(_palette_animation_counter * (p)) * (q)) >> 16)
#define EXTR2(p, q) (((uint16)(~_palette_animation_counter * (p)) * (q)) >> 16)
void DoPaletteAnimations()
{
Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
const Colour *s;
const ExtraPaletteValues *ev = &_extra_palette_values;
/* Amount of colors to be rotated.
* A few more for the DOS palette, because the water colors are
* 245-254 for DOS and 217-226 for Windows. */
const int colour_rotation_amount = (_use_palette == PAL_DOS) ? PALETTE_ANIM_SIZE_DOS : PALETTE_ANIM_SIZE_WIN;
Colour old_val[PALETTE_ANIM_SIZE_DOS];
const int oldval_size = colour_rotation_amount * sizeof(*old_val);
const uint old_tc = _palette_animation_counter;
uint i;
uint j;
if (blitter != NULL && blitter->UsePaletteAnimation() == Blitter::PALETTE_ANIMATION_NONE) {
_palette_animation_counter = 0;
}
Colour *palette_pos = &_cur_palette[PALETTE_ANIM_SIZE_START]; // Points to where animations are taking place on the palette
/* Makes a copy of the current anmation palette in old_val,
* so the work on the current palette could be compared, see if there has been any changes */
memcpy(old_val, palette_pos, oldval_size);
/* Dark blue water */
s = (_settings_game.game_creation.landscape == LT_TOYLAND) ? ev->dark_water_TOY : ev->dark_water;
j = EXTR(320, 5);
for (i = 0; i != 5; i++) {
*palette_pos++ = s[j];
j++;
if (j == 5) j = 0;
}
/* Glittery water */
s = (_settings_game.game_creation.landscape == LT_TOYLAND) ? ev->glitter_water_TOY : ev->glitter_water;
j = EXTR(128, 15);
for (i = 0; i != 5; i++) {
*palette_pos++ = s[j];
j += 3;
if (j >= 15) j -= 15;
}
/* Fizzy Drink bubbles animation */
s = ev->fizzy_drink;
j = EXTR2(512, 5);
for (i = 0; i != 5; i++) {
*palette_pos++ = s[j];
j++;
if (j == 5) j = 0;
}
/* Oil refinery fire animation */
s = ev->oil_ref;
j = EXTR2(512, 7);
for (i = 0; i != 7; i++) {
*palette_pos++ = s[j];
j++;
if (j == 7) j = 0;
}
/* Radio tower blinking */
{
byte i = (_palette_animation_counter >> 1) & 0x7F;
byte v;
(v = 255, i < 0x3f) ||
(v = 128, i < 0x4A || i >= 0x75) ||
(v = 20);
palette_pos->r = v;
palette_pos->g = 0;
palette_pos->b = 0;
palette_pos++;
i ^= 0x40;
(v = 255, i < 0x3f) ||
(v = 128, i < 0x4A || i >= 0x75) ||
(v = 20);
palette_pos->r = v;
palette_pos->g = 0;
palette_pos->b = 0;
palette_pos++;
}
/* Handle lighthouse and stadium animation */
s = ev->lighthouse;
j = EXTR(256, 4);
for (i = 0; i != 4; i++) {
*palette_pos++ = s[j];
j++;
if (j == 4) j = 0;
}
/* Animate water for old DOS graphics */
if (_use_palette == PAL_DOS) {
/* Dark blue water DOS */
s = (_settings_game.game_creation.landscape == LT_TOYLAND) ? ev->dark_water_TOY : ev->dark_water;
j = EXTR(320, 5);
for (i = 0; i != 5; i++) {
*palette_pos++ = s[j];
j++;
if (j == 5) j = 0;
}
/* Glittery water DOS */
s = (_settings_game.game_creation.landscape == LT_TOYLAND) ? ev->glitter_water_TOY : ev->glitter_water;
j = EXTR(128, 15);
for (i = 0; i != 5; i++) {
*palette_pos++ = s[j];
j += 3;
if (j >= 15) j -= 15;
}
}
if (blitter != NULL && blitter->UsePaletteAnimation() == Blitter::PALETTE_ANIMATION_NONE) {
_palette_animation_counter = old_tc;
} else {
if (memcmp(old_val, &_cur_palette[PALETTE_ANIM_SIZE_START], oldval_size) != 0) {
/* Did we changed anything on the palette? Seems so. Mark it as dirty */
_pal_first_dirty = PALETTE_ANIM_SIZE_START;
_pal_count_dirty = colour_rotation_amount;
}
}
}
/** Initialize _stringwidth_table cache */
void LoadStringWidthTable()
{
uint i;
/* Normal font */
for (i = 0; i != 224; i++) {
_stringwidth_table[FS_NORMAL][i] = GetGlyphWidth(FS_NORMAL, i + 32);
}
/* Small font */
for (i = 0; i != 224; i++) {
_stringwidth_table[FS_SMALL][i] = GetGlyphWidth(FS_SMALL, i + 32);
}
/* Large font */
for (i = 0; i != 224; i++) {
_stringwidth_table[FS_LARGE][i] = GetGlyphWidth(FS_LARGE, i + 32);
}
}
/**
* Return width of character glyph.
* @param size Font of the character
* @param key Character code glyph
* @return Width of the character glyph
*/
byte GetCharacterWidth(FontSize size, WChar key)
{
/* Use _stringwidth_table cache if possible */
if (key >= 32 && key < 256) return _stringwidth_table[size][key - 32];
return GetGlyphWidth(size, key);
}
void ScreenSizeChanged()
{
_dirty_bytes_per_line = (_screen.width + DIRTY_BLOCK_WIDTH - 1) / DIRTY_BLOCK_WIDTH;
_dirty_blocks = ReallocT<byte>(_dirty_blocks, _dirty_bytes_per_line * ((_screen.height + DIRTY_BLOCK_HEIGHT - 1) / DIRTY_BLOCK_HEIGHT));
/* check the dirty rect */
if (_invalid_rect.right >= _screen.width) _invalid_rect.right = _screen.width;
if (_invalid_rect.bottom >= _screen.height) _invalid_rect.bottom = _screen.height;
/* screen size changed and the old bitmap is invalid now, so we don't want to undraw it */
_cursor.visible = false;
}
void UndrawMouseCursor()
{
if (_cursor.visible) {
Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
_cursor.visible = false;
blitter->CopyFromBuffer(blitter->MoveTo(_screen.dst_ptr, _cursor.draw_pos.x, _cursor.draw_pos.y), _cursor_backup, _cursor.draw_size.x, _cursor.draw_size.y);
_video_driver->MakeDirty(_cursor.draw_pos.x, _cursor.draw_pos.y, _cursor.draw_size.x, _cursor.draw_size.y);
}
}
void DrawMouseCursor()
{
#if defined(WINCE)
/* Don't ever draw the mouse for WinCE, as we work with a stylus */
return;
#endif
Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
int x;
int y;
int w;
int h;
/* Redraw mouse cursor but only when it's inside the window */
if (!_cursor.in_window) return;
/* Don't draw the mouse cursor if it's already drawn */
if (_cursor.visible) {
if (!_cursor.dirty) return;
UndrawMouseCursor();
}
w = _cursor.size.x;
x = _cursor.pos.x + _cursor.offs.x + _cursor.short_vehicle_offset;
if (x < 0) {
w += x;
x = 0;
}
if (w > _screen.width - x) w = _screen.width - x;
if (w <= 0) return;
_cursor.draw_pos.x = x;
_cursor.draw_size.x = w;
h = _cursor.size.y;
y = _cursor.pos.y + _cursor.offs.y;
if (y < 0) {
h += y;
y = 0;
}
if (h > _screen.height - y) h = _screen.height - y;
if (h <= 0) return;
_cursor.draw_pos.y = y;
_cursor.draw_size.y = h;
assert(blitter->BufferSize(w, h) < (int)sizeof(_cursor_backup));
/* Make backup of stuff below cursor */
blitter->CopyToBuffer(blitter->MoveTo(_screen.dst_ptr, _cursor.draw_pos.x, _cursor.draw_pos.y), _cursor_backup, _cursor.draw_size.x, _cursor.draw_size.y);
/* Draw cursor on screen */
_cur_dpi = &_screen;
DrawSprite(_cursor.sprite, _cursor.pal, _cursor.pos.x + _cursor.short_vehicle_offset, _cursor.pos.y);
_video_driver->MakeDirty(_cursor.draw_pos.x, _cursor.draw_pos.y, _cursor.draw_size.x, _cursor.draw_size.y);
_cursor.visible = true;
_cursor.dirty = false;
}
void RedrawScreenRect(int left, int top, int right, int bottom)
{
assert(right <= _screen.width && bottom <= _screen.height);
if (_cursor.visible) {
if (right > _cursor.draw_pos.x &&
left < _cursor.draw_pos.x + _cursor.draw_size.x &&
bottom > _cursor.draw_pos.y &&
top < _cursor.draw_pos.y + _cursor.draw_size.y) {
UndrawMouseCursor();
}
}
#ifdef ENABLE_NETWORK
NetworkUndrawChatMessage();
#endif /* ENABLE_NETWORK */
DrawOverlappedWindowForAll(left, top, right, bottom);
_video_driver->MakeDirty(left, top, right - left, bottom - top);
}
/*!
* Repaints the rectangle blocks which are marked as 'dirty'.
*
* @see SetDirtyBlocks
*/
void DrawDirtyBlocks()
{
byte *b = _dirty_blocks;
const int w = Align(_screen.width, DIRTY_BLOCK_WIDTH);
const int h = Align(_screen.height, DIRTY_BLOCK_HEIGHT);
int x;
int y;
if (IsGeneratingWorld() && !IsGeneratingWorldReadyForPaint()) return;
y = 0;
do {
x = 0;
do {
if (*b != 0) {
int left;
int top;
int right = x + DIRTY_BLOCK_WIDTH;
int bottom = y;
byte *p = b;
int h2;
/* First try coalescing downwards */
do {
*p = 0;
p += _dirty_bytes_per_line;
bottom += DIRTY_BLOCK_HEIGHT;
} while (bottom != h && *p != 0);
/* Try coalescing to the right too. */
h2 = (bottom - y) / DIRTY_BLOCK_HEIGHT;
assert(h2 > 0);
p = b;
while (right != w) {
byte *p2 = ++p;
int h = h2;
/* Check if a full line of dirty flags is set. */
do {
if (!*p2) goto no_more_coalesc;
p2 += _dirty_bytes_per_line;
} while (--h != 0);
/* Wohoo, can combine it one step to the right!
* Do that, and clear the bits. */
right += DIRTY_BLOCK_WIDTH;
h = h2;
p2 = p;
do {
*p2 = 0;
p2 += _dirty_bytes_per_line;
} while (--h != 0);
}
no_more_coalesc:
left = x;
top = y;
if (left < _invalid_rect.left ) left = _invalid_rect.left;
if (top < _invalid_rect.top ) top = _invalid_rect.top;
if (right > _invalid_rect.right ) right = _invalid_rect.right;
if (bottom > _invalid_rect.bottom) bottom = _invalid_rect.bottom;
if (left < right && top < bottom) {
RedrawScreenRect(left, top, right, bottom);
}
}
} while (b++, (x += DIRTY_BLOCK_WIDTH) != w);
} while (b += -(w / DIRTY_BLOCK_WIDTH) + _dirty_bytes_per_line, (y += DIRTY_BLOCK_HEIGHT) != h);
_invalid_rect.left = w;
_invalid_rect.top = h;
_invalid_rect.right = 0;
_invalid_rect.bottom = 0;
/* If we are generating a world, and waiting for a paint run, mark it here
* as done painting, so we can continue generating. */
if (IsGeneratingWorld() && IsGeneratingWorldReadyForPaint()) {
SetGeneratingWorldPaintStatus(false);
}
}
/*!
* This function extends the internal _invalid_rect rectangle as it
* now contains the rectangle defined by the given parameters. Note
* the point (0,0) is top left.
*
* @param left The left edge of the rectangle
* @param top The top edge of the rectangle
* @param right The right edge of the rectangle
* @param bottom The bottm edge of the rectangle
* @see DrawDirtyBlocks
*
* @todo The name of the function should be called like @c AddDirtyBlock as
* it neither set a dirty rect nor add several dirty rects although
* the function name is in plural. (Progman)
*/
void SetDirtyBlocks(int left, int top, int right, int bottom)
{
byte *b;
int width;
int height;
if (left < 0) left = 0;
if (top < 0) top = 0;
if (right > _screen.width) right = _screen.width;
if (bottom > _screen.height) bottom = _screen.height;
if (left >= right || top >= bottom) return;
if (left < _invalid_rect.left ) _invalid_rect.left = left;
if (top < _invalid_rect.top ) _invalid_rect.top = top;
if (right > _invalid_rect.right ) _invalid_rect.right = right;
if (bottom > _invalid_rect.bottom) _invalid_rect.bottom = bottom;
left /= DIRTY_BLOCK_WIDTH;
top /= DIRTY_BLOCK_HEIGHT;
b = _dirty_blocks + top * _dirty_bytes_per_line + left;
width = ((right - 1) / DIRTY_BLOCK_WIDTH) - left + 1;
height = ((bottom - 1) / DIRTY_BLOCK_HEIGHT) - top + 1;
assert(width > 0 && height > 0);
do {
int i = width;
do b[--i] = 0xFF; while (i);
b += _dirty_bytes_per_line;
} while (--height != 0);
}
/*!
* This function mark the whole screen as dirty. This results in repainting
* the whole screen. Use this with care as this function will break the
* idea about marking only parts of the screen as 'dirty'.
*/
void MarkWholeScreenDirty()
{
SetDirtyBlocks(0, 0, _screen.width, _screen.height);
}
/** Set up a clipping area for only drawing into a certain area. To do this,
* Fill a DrawPixelInfo object with the supplied relative rectangle, backup
* the original (calling) _cur_dpi and assign the just returned DrawPixelInfo
* _cur_dpi. When you are done, give restore _cur_dpi's original value
* @param *n the DrawPixelInfo that will be the clipping rectangle box allowed
* for drawing
* @param left,top,width,height the relative coordinates of the clipping
* rectangle relative to the current _cur_dpi. This will most likely be the
* offset from the calling window coordinates
* @return return false if the requested rectangle is not possible with the
* current dpi pointer. Only continue of the return value is true, or you'll
* get some nasty results */
bool FillDrawPixelInfo(DrawPixelInfo *n, int left, int top, int width, int height)
{
Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
const DrawPixelInfo *o = _cur_dpi;
n->zoom = ZOOM_LVL_NORMAL;
assert(width > 0);
assert(height > 0);
if ((left -= o->left) < 0) {
width += left;
if (width <= 0) return false;
n->left = -left;
left = 0;
} else {
n->left = 0;
}
if (width > o->width - left) {
width = o->width - left;
if (width <= 0) return false;
}
n->width = width;
if ((top -= o->top) < 0) {
height += top;
if (height <= 0) return false;
n->top = -top;
top = 0;
} else {
n->top = 0;
}
n->dst_ptr = blitter->MoveTo(o->dst_ptr, left, top);
n->pitch = o->pitch;
if (height > o->height - top) {
height = o->height - top;
if (height <= 0) return false;
}
n->height = height;
return true;
}
static void SetCursorSprite(SpriteID cursor, SpriteID pal)
{
CursorVars *cv = &_cursor;
const Sprite *p;
if (cv->sprite == cursor) return;
p = GetSprite(GB(cursor, 0, SPRITE_WIDTH));
cv->sprite = cursor;
cv->pal = pal;
cv->size.y = p->height;
cv->size.x = p->width;
cv->offs.x = p->x_offs;
cv->offs.y = p->y_offs;
cv->dirty = true;
cv->short_vehicle_offset = 0;
}
static void SwitchAnimatedCursor()
{
const AnimCursor *cur = _cursor.animate_cur;
if (cur == NULL || cur->sprite == AnimCursor::LAST) cur = _cursor.animate_list;
SetCursorSprite(cur->sprite, _cursor.pal);
_cursor.animate_timeout = cur->display_time;
_cursor.animate_cur = cur + 1;
}
void CursorTick()
{
if (_cursor.animate_timeout != 0 && --_cursor.animate_timeout == 0)
SwitchAnimatedCursor();
}
void SetMouseCursor(SpriteID sprite, SpriteID pal)
{
/* Turn off animation */
_cursor.animate_timeout = 0;
/* Set cursor */
SetCursorSprite(sprite, pal);
}
void SetAnimatedMouseCursor(const AnimCursor *table)
{
_cursor.animate_list = table;
_cursor.animate_cur = NULL;
_cursor.pal = PAL_NONE;
SwitchAnimatedCursor();
}
bool ChangeResInGame(int width, int height)
{
return (_screen.width == width && _screen.height == height) || _video_driver->ChangeResolution(width, height);
}
bool ToggleFullScreen(bool fs)
{
bool result = _video_driver->ToggleFullscreen(fs);
if (_fullscreen != fs && _num_resolutions == 0) {
DEBUG(driver, 0, "Could not find a suitable fullscreen resolution");
}
return result;
}
static int CDECL compare_res(const Dimension *pa, const Dimension *pb)
{
int x = pa->width - pb->width;
if (x != 0) return x;
return pa->height - pb->height;
}
void SortResolutions(int count)
{
QSortT(_resolutions, count, &compare_res);
}
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