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tidy up filter code

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This commit is contained in:
Daryl Borth 2018-08-30 11:24:12 -06:00
parent 16e8b6dd25
commit 9cab3a68e9
2 changed files with 7 additions and 68 deletions
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65
source/filter.cpp
View File

@ -31,28 +31,12 @@
static int RGBtoYUV[1<<NUMBITS];
static uint16 RGBtoBright[1<<NUMBITS];
TFilterMethod FilterMethod = RenderPlain;
//TFilterMethod FilterMethodHiRes = RenderPlain;
TFilterMethod FilterMethod;
//
// Functions:
//
template<int GuiScale> void RenderHQ2X (uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height);
template<int GuiScale> void Scanlines (uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height);
bool
GetFilterHiResSupport (RenderFilter filterID)
{
switch(filterID)
{
case FILTER_NONE:
return true;
default:
return false;
}
}
const char*
GetFilterName (RenderFilter filterID)
const char* GetFilterName (RenderFilter filterID)
{
switch(filterID)
{
@ -66,17 +50,15 @@ GetFilterName (RenderFilter filterID)
}
// Return pointer to appropriate function
TFilterMethod
FilterToMethod (RenderFilter filterID)
static TFilterMethod FilterToMethod (RenderFilter filterID)
{
switch(filterID)
{
default:
case FILTER_NONE: return RenderPlain;
case FILTER_HQ2X: return RenderHQ2X<FILTER_HQ2X>;
case FILTER_HQ2XS: return RenderHQ2X<FILTER_HQ2XS>;
case FILTER_HQ2XBOLD: return RenderHQ2X<FILTER_HQ2XBOLD>;
case FILTER_SCANLINES: return Scanlines<FILTER_SCANLINES>;
default: return 0;
}
}
@ -86,7 +68,6 @@ int GetFilterScale(RenderFilter filterID)
{
case FILTER_NONE:
return 1;
default:
case FILTER_HQ2X:
case FILTER_HQ2XS:
@ -96,32 +77,9 @@ int GetFilterScale(RenderFilter filterID)
}
}
void
SelectFilterMethod ()
void SelectFilterMethod ()
{
//InfoPrompt((char*)"Select Filter Method."); // debug
FilterMethod = FilterToMethod((RenderFilter)GCSettings.FilterMethod);
//FilterMethodHiRes = FilterToMethod((RenderFilter)GCSettings.FilterMethodHiRes);
// check whether or not we need filter memory (alloc or free it)
}
//
// Filter Codes:
//
// No enlargement, just render to the screen
void
RenderPlain (uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height)
{
if (dstPtr == NULL)
{
ErrorPrompt((char*)"dstPtr is NULL. exiting!");
exit(1);
}
//memcpy (dstPtr, srcPtr, width*height*srcPitch);
return;
}
//
@ -236,17 +194,10 @@ void InitLUTs(void)
for (c = 0 ; c < (1<<NUMBITS) ; c++)
{
//#ifdef R5G6B5
b = (int)((c & 0x1F)) << 3;
g = (int)((c & 0x7E0)) >> 3;
r = (int)((c & 0xF800)) >> 8;
//#else
// b = (int)((c & 0x1F)) << 3;
// g = (int)((c & 0x3E0)) >> 2;
// r = (int)((c & 0x7C00)) >> 7;
//#endif
RGBtoBright[c] = r+r+r + g+g+g + b+b;
y = (int)( 0.256788f*r + 0.504129f*g + 0.097906f*b + 0.5f) + 16;
@ -254,7 +205,6 @@ void InitLUTs(void)
v = (int)( 0.439216f*r - 0.367788f*g - 0.071427f*b + 0.5f) + 128;
RGBtoYUV[c] = (y << 16) + (u << 8) + v;
}
}
@ -427,7 +377,6 @@ void RenderHQ2X (uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch,
// If Snes9x is rendering anything in HiRes, then just copy, don't interpolate
if (height > SNES_HEIGHT_EXTENDED || width == 512)
{
//RenderSimple2X (Src, Dst, rect);
return;
}

10
source/filter.h
View File

@ -42,22 +42,12 @@ enum RenderFilter{
typedef void (*TFilterMethod)(uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height);
extern TFilterMethod FilterMethod;
extern TFilterMethod FilterMethodHiRes;
extern unsigned char * filtermem;
//
// Prototypes
//
void SelectFilterMethod ();
void RenderPlain (uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height);
void SelectFilterMethod ();
TFilterMethod FilterToMethod (RenderFilter filterID);
const char* GetFilterName (RenderFilter filterID);
bool GetFilterHiResSupport (RenderFilter filterID);
int GetFilterScale(RenderFilter filterID);
template<int GuiScale> void RenderHQ2X (uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height);
template<int GuiScale> void Scanlines (uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height);
void InitLUTs();
#endif