mirror of
https://github.com/dborth/vbagx.git
synced 2024-11-22 18:49:18 +01:00
eabe325fb0
optimizations from dancinninjac, GB color palettes, rotation/tilt for WarioWare Twisted, in-game rumble)
407 lines
9.5 KiB
C++
407 lines
9.5 KiB
C++
/*
|
|
Mode 5 is a low resolution (160x128) 15-bit colour bitmap graphics mode
|
|
with 2 swappable pages!
|
|
It has a single layer, background layer 2, lower resolution than the screen.
|
|
It doesn't support scrolling, flipping, rotation or tiles.
|
|
|
|
These routines only render a single line at a time, because of the way the GBA does events.
|
|
*/
|
|
#include "GBA.h"
|
|
#include "Globals.h"
|
|
#include "GBAGfx.h"
|
|
|
|
void mode5RenderLine()
|
|
{
|
|
if(DISPCNT & 0x0080) {
|
|
|
|
int x = 232; //240 - 8
|
|
do{
|
|
lineMix[x ] =
|
|
lineMix[x+1] =
|
|
lineMix[x+2] =
|
|
lineMix[x+3] =
|
|
lineMix[x+4] =
|
|
lineMix[x+5] =
|
|
lineMix[x+6] =
|
|
lineMix[x+7] = 0x7fff;
|
|
x-=8;
|
|
}while(x>=0);
|
|
|
|
gfxLastVCOUNT = VCOUNT;
|
|
return;
|
|
}
|
|
|
|
u16 *palette = (u16 *)paletteRAM;
|
|
|
|
if(layerEnable & 0x0400) {
|
|
int changed = gfxBG2Changed;
|
|
|
|
if(gfxLastVCOUNT > VCOUNT)
|
|
changed = 3;
|
|
|
|
gfxDrawRotScreen16Bit160(BG2CNT, BG2X_L, BG2X_H,
|
|
BG2Y_L, BG2Y_H, BG2PA, BG2PB,
|
|
BG2PC, BG2PD,
|
|
gfxBG2X, gfxBG2Y, changed,
|
|
line2);
|
|
}
|
|
|
|
gfxDrawSprites(lineOBJ);
|
|
|
|
u32 background;
|
|
if(customBackdropColor == -1) {
|
|
background = (READ16LE(&palette[0]) | 0x30000000);
|
|
} else {
|
|
background = ((customBackdropColor & 0x7FFF) | 0x30000000);
|
|
}
|
|
|
|
for(int x = 0; x < 240; ++x) {
|
|
u32 color = background;
|
|
u8 top = 0x20;
|
|
|
|
if(line2[x] < background) {
|
|
color = line2[x];
|
|
top = 0x04;
|
|
}
|
|
|
|
if((u8)(lineOBJ[x]>>24) < (u8)(color >>24)) {
|
|
color = lineOBJ[x];
|
|
top = 0x10;
|
|
}
|
|
|
|
if((top & 0x10) && (color & 0x00010000)) {
|
|
// semi-transparent OBJ
|
|
u32 back = background;
|
|
u8 top2 = 0x20;
|
|
|
|
if(line2[x] < back) {
|
|
back = line2[x];
|
|
top2 = 0x04;
|
|
}
|
|
|
|
if(top2 & (BLDMOD>>8))
|
|
color = gfxAlphaBlend(color, back,
|
|
coeff[COLEV & 0x1F],
|
|
coeff[(COLEV >> 8) & 0x1F]);
|
|
else {
|
|
switch((BLDMOD >> 6) & 3) {
|
|
case 2:
|
|
if(BLDMOD & top)
|
|
color = gfxIncreaseBrightness(color, coeff[COLY & 0x1F]);
|
|
break;
|
|
case 3:
|
|
if(BLDMOD & top)
|
|
color = gfxDecreaseBrightness(color, coeff[COLY & 0x1F]);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
lineMix[x] = color;
|
|
}
|
|
gfxBG2Changed = 0;
|
|
gfxLastVCOUNT = VCOUNT;
|
|
}
|
|
|
|
void mode5RenderLineNoWindow()
|
|
{
|
|
if(DISPCNT & 0x0080) {
|
|
|
|
int x = 232; //240 - 8
|
|
do{
|
|
lineMix[x ] =
|
|
lineMix[x+1] =
|
|
lineMix[x+2] =
|
|
lineMix[x+3] =
|
|
lineMix[x+4] =
|
|
lineMix[x+5] =
|
|
lineMix[x+6] =
|
|
lineMix[x+7] = 0x7fff;
|
|
x-=8;
|
|
}while(x>=0);
|
|
|
|
gfxLastVCOUNT = VCOUNT;
|
|
return;
|
|
}
|
|
|
|
u16 *palette = (u16 *)paletteRAM;
|
|
|
|
if(layerEnable & 0x0400) {
|
|
int changed = gfxBG2Changed;
|
|
|
|
if(gfxLastVCOUNT > VCOUNT)
|
|
changed = 3;
|
|
|
|
gfxDrawRotScreen16Bit160(BG2CNT, BG2X_L, BG2X_H,
|
|
BG2Y_L, BG2Y_H, BG2PA, BG2PB,
|
|
BG2PC, BG2PD,
|
|
gfxBG2X, gfxBG2Y, changed,
|
|
line2);
|
|
}
|
|
|
|
gfxDrawSprites(lineOBJ);
|
|
|
|
u32 background;
|
|
if(customBackdropColor == -1) {
|
|
background = (READ16LE(&palette[0]) | 0x30000000);
|
|
} else {
|
|
background = ((customBackdropColor & 0x7FFF) | 0x30000000);
|
|
}
|
|
|
|
for(int x = 0; x < 240; ++x) {
|
|
u32 color = background;
|
|
u8 top = 0x20;
|
|
|
|
if(line2[x] < background) {
|
|
color = line2[x];
|
|
top = 0x04;
|
|
}
|
|
|
|
if((u8)(lineOBJ[x]>>24) < (u8)(color >>24)) {
|
|
color = lineOBJ[x];
|
|
top = 0x10;
|
|
}
|
|
|
|
if(!(color & 0x00010000)) {
|
|
switch((BLDMOD >> 6) & 3) {
|
|
case 0:
|
|
break;
|
|
case 1:
|
|
{
|
|
if(top & BLDMOD) {
|
|
u32 back = background;
|
|
u8 top2 = 0x20;
|
|
|
|
if((top != 0x04) && line2[x] < background) {
|
|
back = line2[x];
|
|
top2 = 0x04;
|
|
}
|
|
|
|
if((top != 0x10) && (u8)(lineOBJ[x]>>24) < (u8)(back >> 24)) {
|
|
back = lineOBJ[x];
|
|
top2 = 0x10;
|
|
}
|
|
|
|
if(top2 & (BLDMOD>>8))
|
|
color = gfxAlphaBlend(color, back,
|
|
coeff[COLEV & 0x1F],
|
|
coeff[(COLEV >> 8) & 0x1F]);
|
|
|
|
}
|
|
}
|
|
break;
|
|
case 2:
|
|
if(BLDMOD & top)
|
|
color = gfxIncreaseBrightness(color, coeff[COLY & 0x1F]);
|
|
break;
|
|
case 3:
|
|
if(BLDMOD & top)
|
|
color = gfxDecreaseBrightness(color, coeff[COLY & 0x1F]);
|
|
break;
|
|
}
|
|
} else {
|
|
// semi-transparent OBJ
|
|
u32 back = background;
|
|
u8 top2 = 0x20;
|
|
|
|
if(line2[x] < back) {
|
|
back = line2[x];
|
|
top2 = 0x04;
|
|
}
|
|
|
|
if(top2 & (BLDMOD>>8))
|
|
color = gfxAlphaBlend(color, back,
|
|
coeff[COLEV & 0x1F],
|
|
coeff[(COLEV >> 8) & 0x1F]);
|
|
else {
|
|
switch((BLDMOD >> 6) & 3) {
|
|
case 2:
|
|
if(BLDMOD & top)
|
|
color = gfxIncreaseBrightness(color, coeff[COLY & 0x1F]);
|
|
break;
|
|
case 3:
|
|
if(BLDMOD & top)
|
|
color = gfxDecreaseBrightness(color, coeff[COLY & 0x1F]);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
lineMix[x] = color;
|
|
}
|
|
gfxBG2Changed = 0;
|
|
gfxLastVCOUNT = VCOUNT;
|
|
}
|
|
|
|
void mode5RenderLineAll()
|
|
{
|
|
if(DISPCNT & 0x0080) {
|
|
|
|
int x = 232; //240 - 8
|
|
do{
|
|
lineMix[x ] =
|
|
lineMix[x+1] =
|
|
lineMix[x+2] =
|
|
lineMix[x+3] =
|
|
lineMix[x+4] =
|
|
lineMix[x+5] =
|
|
lineMix[x+6] =
|
|
lineMix[x+7] = 0x7fff;
|
|
x-=8;
|
|
}while(x>=0);
|
|
gfxLastVCOUNT = VCOUNT;
|
|
return;
|
|
}
|
|
|
|
u16 *palette = (u16 *)paletteRAM;
|
|
|
|
if(layerEnable & 0x0400) {
|
|
int changed = gfxBG2Changed;
|
|
|
|
if(gfxLastVCOUNT > VCOUNT)
|
|
changed = 3;
|
|
|
|
gfxDrawRotScreen16Bit160(BG2CNT, BG2X_L, BG2X_H,
|
|
BG2Y_L, BG2Y_H, BG2PA, BG2PB,
|
|
BG2PC, BG2PD,
|
|
gfxBG2X, gfxBG2Y, changed,
|
|
line2);
|
|
}
|
|
|
|
gfxDrawSprites(lineOBJ);
|
|
gfxDrawOBJWin(lineOBJWin);
|
|
|
|
bool inWindow0 = false;
|
|
bool inWindow1 = false;
|
|
|
|
if(layerEnable & 0x2000) {
|
|
u8 v0 = WIN0V >> 8;
|
|
u8 v1 = WIN0V & 255;
|
|
inWindow0 = ((v0 == v1) && (v0 >= 0xe8));
|
|
if(v1 >= v0)
|
|
inWindow0 |= (VCOUNT >= v0 && VCOUNT < v1);
|
|
else
|
|
inWindow0 |= (VCOUNT >= v0 || VCOUNT < v1);
|
|
}
|
|
if(layerEnable & 0x4000) {
|
|
u8 v0 = WIN1V >> 8;
|
|
u8 v1 = WIN1V & 255;
|
|
inWindow1 = ((v0 == v1) && (v0 >= 0xe8));
|
|
if(v1 >= v0)
|
|
inWindow1 |= (VCOUNT >= v0 && VCOUNT < v1);
|
|
else
|
|
inWindow1 |= (VCOUNT >= v0 || VCOUNT < v1);
|
|
}
|
|
|
|
u8 inWin0Mask = WININ & 0xFF;
|
|
u8 inWin1Mask = WININ >> 8;
|
|
u8 outMask = WINOUT & 0xFF;
|
|
|
|
u32 background;
|
|
if(customBackdropColor == -1) {
|
|
background = (READ16LE(&palette[0]) | 0x30000000);
|
|
} else {
|
|
background = ((customBackdropColor & 0x7FFF) | 0x30000000);
|
|
}
|
|
|
|
for(int x = 0; x < 240; ++x) {
|
|
u32 color = background;
|
|
u8 top = 0x20;
|
|
u8 mask = outMask;
|
|
|
|
if(!(lineOBJWin[x] & 0x80000000)) {
|
|
mask = WINOUT >> 8;
|
|
}
|
|
|
|
if(inWindow1) {
|
|
if(gfxInWin1[x])
|
|
mask = inWin1Mask;
|
|
}
|
|
|
|
if(inWindow0) {
|
|
if(gfxInWin0[x]) {
|
|
mask = inWin0Mask;
|
|
}
|
|
}
|
|
|
|
if((mask & 4) && (line2[x] < background)) {
|
|
color = line2[x];
|
|
top = 0x04;
|
|
}
|
|
|
|
if((mask & 16) && ((u8)(lineOBJ[x]>>24) < (u8)(color >>24))) {
|
|
color = lineOBJ[x];
|
|
top = 0x10;
|
|
}
|
|
|
|
if(color & 0x00010000) {
|
|
// semi-transparent OBJ
|
|
u32 back = background;
|
|
u8 top2 = 0x20;
|
|
|
|
if((mask & 4) && line2[x] < back) {
|
|
back = line2[x];
|
|
top2 = 0x04;
|
|
}
|
|
|
|
if(top2 & (BLDMOD>>8))
|
|
color = gfxAlphaBlend(color, back,
|
|
coeff[COLEV & 0x1F],
|
|
coeff[(COLEV >> 8) & 0x1F]);
|
|
else {
|
|
switch((BLDMOD >> 6) & 3) {
|
|
case 2:
|
|
if(BLDMOD & top)
|
|
color = gfxIncreaseBrightness(color, coeff[COLY & 0x1F]);
|
|
break;
|
|
case 3:
|
|
if(BLDMOD & top)
|
|
color = gfxDecreaseBrightness(color, coeff[COLY & 0x1F]);
|
|
break;
|
|
}
|
|
}
|
|
} else if(mask & 32) {
|
|
switch((BLDMOD >> 6) & 3) {
|
|
case 0:
|
|
break;
|
|
case 1:
|
|
{
|
|
if(top & BLDMOD) {
|
|
u32 back = background;
|
|
u8 top2 = 0x20;
|
|
|
|
if((mask & 4) && (top != 0x04) && (line2[x] < background)) {
|
|
back = line2[x];
|
|
top2 = 0x04;
|
|
}
|
|
|
|
if((mask & 16) && (top != 0x10) && (u8)(lineOBJ[x]>>24) < (u8)(back >> 24)) {
|
|
back = lineOBJ[x];
|
|
top2 = 0x10;
|
|
}
|
|
|
|
if(top2 & (BLDMOD>>8))
|
|
color = gfxAlphaBlend(color, back,
|
|
coeff[COLEV & 0x1F],
|
|
coeff[(COLEV >> 8) & 0x1F]);
|
|
|
|
}
|
|
}
|
|
break;
|
|
case 2:
|
|
if(BLDMOD & top)
|
|
color = gfxIncreaseBrightness(color, coeff[COLY & 0x1F]);
|
|
break;
|
|
case 3:
|
|
if(BLDMOD & top)
|
|
color = gfxDecreaseBrightness(color, coeff[COLY & 0x1F]);
|
|
break;
|
|
}
|
|
}
|
|
|
|
lineMix[x] = color;
|
|
}
|
|
gfxBG2Changed = 0;
|
|
gfxLastVCOUNT = VCOUNT;
|
|
}
|