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Add some reordering optimalisation from ih8regs

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2354
This commit is contained in:
Peter Veenstra 2005-10-24 14:43:53 +00:00
parent c614c13e0e
commit 3bc50d7f6f
1 changed files with 36 additions and 37 deletions
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73
src/gui/render.cpp
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: render.cpp,v 1.33 2005-10-09 15:50:09 qbix79 Exp $ */
/* $Id: render.cpp,v 1.34 2005-10-24 14:43:53 qbix79 Exp $ */
#include <sys/types.h>
#include <dirent.h>
@ -220,46 +220,45 @@ static void RENDER_EmptyLineHandler(const Bit8u * src) {
}
bool RENDER_StartUpdate(void) {
if (render.updating) return false;
if (render.frameskip.count<render.frameskip.max) {
render.frameskip.count++;
return false;
}
render.frameskip.count=0;
if (render.src.bpp==8) Check_Palette();
Scaler_Line=0;
Scaler_Index=Scaler_Data;
if (!GFX_StartUpdate(Scaler_DstWrite,Scaler_DstPitch)) return false;
RENDER_DrawLine=render.op.line_handler;
if (!render.updating) {
if (render.frameskip.count>render.frameskip.max) {
if (render.src.bpp==8) Check_Palette();
render.frameskip.count=0;
Scaler_Line=0;
Scaler_Index=Scaler_Data;
if (GFX_StartUpdate(Scaler_DstWrite,Scaler_DstPitch)) {
RENDER_DrawLine=render.op.line_handler;
#if (C_SSHOT)
if (render.shot.take) {
render.shot.take=false;
if (render.shot.buffer) {
free(render.shot.buffer);
}
render.shot.width=render.src.width;
render.shot.height=render.src.height;
render.shot.bpp=render.src.bpp;
switch (render.shot.bpp) {
case 8:render.shot.rowlen=render.shot.width;break;
case 15:
case 16:render.shot.rowlen=render.shot.width*2;break;
case 32:render.shot.rowlen=render.shot.width*4;break;
}
render.shot.buffer=(Bit8u*)malloc(render.shot.rowlen*render.shot.height);
render.shot.draw=render.shot.buffer;
RENDER_DrawLine=RENDER_ShotDraw;
render.shot.taking=true;
}
if (GCC_UNLIKELY(render.shot.take)) {
render.shot.take=false;
if (render.shot.buffer) free(render.shot.buffer);
render.shot.width=render.src.width;
render.shot.height=render.src.height;
render.shot.bpp=render.src.bpp;
switch (render.shot.bpp) {
case 8:render.shot.rowlen=render.shot.width;break;
case 15:
case 16:render.shot.rowlen=render.shot.width*2;break;
case 32:render.shot.rowlen=render.shot.width*4;break;
}
render.shot.buffer=(Bit8u*)malloc(render.shot.rowlen*render.shot.height);
render.shot.draw=render.shot.buffer;
RENDER_DrawLine=RENDER_ShotDraw;
render.shot.taking=true;
}
#endif
render.updating=true;
return true;
render.updating=true;
return true;
}
} else render.frameskip.count++;
}
return false;
}
void RENDER_EndUpdate(void) {
if (!render.updating) return;
if (render.updating) {
#if (C_SSHOT)
if (render.shot.taking) {
if (GCC_UNLIKELY(render.shot.taking)) {
render.shot.taking=false;
TakeScreenShot(render.shot.buffer);
free(render.shot.buffer);
@ -268,10 +267,10 @@ void RENDER_EndUpdate(void) {
#endif /* If Things are added to please check the define */
GFX_EndUpdate();
RENDER_DrawLine=RENDER_EmptyLineHandler;
render.updating=false;
render.updating=false;
}
}
static Bitu MakeAspectTable(Bitu height,double scaley,Bitu miny) {
double lines=0;
Bitu linesadded=0;