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Use the old and faster 1.5x scaler when available

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svn-id: r27455
This commit is contained in:
Chris Apers 2007-06-16 10:37:59 +00:00
parent 6e9200f739
commit 7a5b89309e
3 changed files with 47 additions and 4 deletions
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3
backends/platform/PalmOS/Src/be_os5.h
View File

@ -131,8 +131,7 @@ private:
void calc_scale();
void render_landscapeAny(RectangleType &r, PointType &p);
void render_landscape(RectangleType &r, PointType &p);
void render_portrait(RectangleType &r, PointType &p);
void render_landscape15x(RectangleType &r, PointType &p);
void render_1x(RectangleType &r, PointType &p);
WinHandle alloc_screen(Coord w, Coord h);
virtual void draw_osd(UInt16 id, Int32 x, Int32 y, Boolean show, UInt8 color = 0);

8
backends/platform/PalmOS/Src/os5_gfx.cpp
View File

@ -137,9 +137,13 @@ void OSystem_PalmOS5::hotswap_gfx_mode(int mode) {
}
if (_stretched) {
calc_scale();
OPTIONS_SET(kOptDisableOnScrDisp);
_render = &OSystem_PalmOS5::render_landscapeAny;
if (_screenHeight == 200 && _screenDest.h == 300) {
_render = &OSystem_PalmOS5::render_landscape15x;
} else {
_render = &OSystem_PalmOS5::render_landscapeAny;
calc_scale();
}
} else {
OPTIONS_RST(kOptDisableOnScrDisp);
_render = &OSystem_PalmOS5::render_1x;

40
backends/platform/PalmOS/Src/os5_renderer.cpp
View File

@ -76,3 +76,43 @@ void OSystem_PalmOS5::render_landscapeAny(RectangleType &r, PointType &p) {
p.y = _screenOffset.y + o;
RctSetRectangle(&r, 0, 0, _screenDest.w, _screenDest.h - o);
}
void OSystem_PalmOS5::render_landscape15x(RectangleType &r, PointType &p) {
Coord x, y, o = 0;
int16 *dst = _workScreenP;
if (_overlayVisible) {
int16 *src = _overlayP;
for (y = 0; y < 100; y++) {
// draw 2 lines
for (x = 0; x < 320; x++) {
*dst++ = *src++;
*dst++ = *src;
*dst++ = *src++;
}
// copy the second to the next line
MemMove(dst, dst - 480, 480 * 2);
dst += 480;
}
} else {
byte *src = _offScreenP;
o = _current_shake_pos;
for (y = 0; y < 100; y++) {
// draw 2 lines
for (x = 0; x < 320; x++) {
*dst++ = _nativePal[*src++];
*dst++ = _nativePal[*src];
*dst++ = _nativePal[*src++];
}
// copy the second to the next line
MemMove(dst, dst - 480, 480 * 2);
dst += 480;
}
}
p.x = _screenOffset.x;
p.y = _screenOffset.y + o;
RctSetRectangle(&r, 0, 0, 480, 300 - o);
}