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https://github.com/ekeeke/Genesis-Plus-GX.git
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Add 15bpp ABGR format
This commit is contained in:
Francisco José García García
parent
0db5c0da94
commit
9231103344
@ -143,7 +143,7 @@ INLINE void WRITE_LONG(void *address, uint32 data)
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atex = atex_table[(ATTR >> 29) & 7]; \
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src = (uint32 *)&bg_pattern_cache[((ATTR & 0x03FF0000) >> 9 | (ATTR & 0x18000000) >> 10 | (LINE)) ^ ((ATTR & 0x10000000) >> 22)];
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/*
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/*
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One column = 2 tiles
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Two pattern attributes are written in VRAM as two consecutives 16-bit words:
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@ -264,7 +264,7 @@ INLINE void WRITE_LONG(void *address, uint32 data)
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/* This might be faster or slower than original method, depending on */
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/* architecture (x86, PowerPC), cache size, memory access speed, etc... */
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#ifdef LSB_FIRST
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#ifdef LSB_FIRST
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#define DRAW_BG_TILE(SRC_A, SRC_B) \
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*lb++ = table[((SRC_B << 8) & 0xff00) | (SRC_A & 0xff)]; \
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*lb++ = table[(SRC_B & 0xff00) | ((SRC_A >> 8) & 0xff)]; \
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@ -279,7 +279,7 @@ INLINE void WRITE_LONG(void *address, uint32 data)
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#endif
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#ifdef ALIGN_LONG
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#ifdef LSB_FIRST
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#ifdef LSB_FIRST
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#define DRAW_BG_COLUMN(ATTR, LINE, SRC_A, SRC_B) \
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GET_LSB_TILE(ATTR, LINE) \
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SRC_A = READ_LONG((uint32 *)lb); \
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@ -325,7 +325,7 @@ INLINE void WRITE_LONG(void *address, uint32 data)
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DRAW_BG_TILE(SRC_A, SRC_B) \
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SRC_A = READ_LONG((uint32 *)lb); \
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SRC_B = (src[1] | atex); \
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DRAW_BG_TILE(SRC_A, SRC_B)
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DRAW_BG_TILE(SRC_A, SRC_B)
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#define DRAW_BG_COLUMN_IM2(ATTR, LINE, SRC_A, SRC_B) \
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GET_MSB_TILE_IM2(ATTR, LINE) \
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SRC_A = READ_LONG((uint32 *)lb); \
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@ -343,7 +343,7 @@ INLINE void WRITE_LONG(void *address, uint32 data)
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DRAW_BG_TILE(SRC_A, SRC_B)
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#endif
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#else /* NOT ALIGNED */
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#ifdef LSB_FIRST
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#ifdef LSB_FIRST
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#define DRAW_BG_COLUMN(ATTR, LINE, SRC_A, SRC_B) \
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GET_LSB_TILE(ATTR, LINE) \
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SRC_A = *(uint32 *)(lb); \
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@ -470,8 +470,11 @@ INLINE void WRITE_LONG(void *address, uint32 data)
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/* 5:5:5 RGB */
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#elif defined(USE_15BPP_RENDERING)
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#if defined(USE_ABGR)
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#define MAKE_PIXEL(r,g,b) ((1 << 15) | (b) << 11 | ((b) >> 3) << 10 | (g) << 6 | ((g) >> 3) << 5 | (r) << 1 | (r) >> 3)
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#else
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#define MAKE_PIXEL(r,g,b) ((1 << 15) | (r) << 11 | ((r) >> 3) << 10 | (g) << 6 | ((g) >> 3) << 5 | (b) << 1 | (b) >> 3)
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#endif
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/* 5:6:5 RGB */
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#elif defined(USE_16BPP_RENDERING)
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#define MAKE_PIXEL(r,g,b) ((r) << 12 | ((r) >> 3) << 11 | (g) << 7 | ((g) >> 2) << 5 | (b) << 1 | (b) >> 3)
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@ -573,7 +576,7 @@ static uint8 linebuf[2][0x200];
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static uint8 spr_ovr;
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/* Sprite parsing lists */
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typedef struct
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typedef struct
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{
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uint16 ypos;
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uint16 xpos;
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@ -620,7 +623,7 @@ static void make_name_lut(void)
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if ((vrow > height) || vcol > width)
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{
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/* Invalid settings (unused) */
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name_lut[i] = -1;
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name_lut[i] = -1;
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}
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else
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{
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@ -691,8 +694,8 @@ static uint32 make_lut_bg(uint32 bx, uint32 ax)
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int bf = (bx & 0x7F);
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int bp = (bx & 0x40);
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int b = (bx & 0x0F);
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int af = (ax & 0x7F);
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int af = (ax & 0x7F);
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int ap = (ax & 0x40);
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int a = (ax & 0x0F);
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@ -712,8 +715,8 @@ static uint32 make_lut_bg_ste(uint32 bx, uint32 ax)
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int bf = (bx & 0x7F);
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int bp = (bx & 0x40);
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int b = (bx & 0x0F);
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int af = (ax & 0x7F);
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int af = (ax & 0x7F);
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int ap = (ax & 0x40);
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int a = (ax & 0x0F);
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@ -761,7 +764,7 @@ static uint32 make_lut_bgobj(uint32 bx, uint32 sx)
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int bs = (bx & 0x80);
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int bp = (bx & 0x40);
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int b = (bx & 0x0F);
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int sf = (sx & 0x3F);
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int sp = (sx & 0x40);
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int s = (sx & 0x0F);
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@ -897,7 +900,7 @@ static uint32 make_lut_bgobj_ste(uint32 bx, uint32 sx)
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}
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}
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else
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{
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{
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c = (bf | bi);
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}
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}
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@ -914,7 +917,7 @@ static uint32 make_lut_bgobj_ste(uint32 bx, uint32 sx)
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static uint32 make_lut_bgobj_m4(uint32 bx, uint32 sx)
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{
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int c;
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int bf = (bx & 0x3F);
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int bs = (bx & 0x80);
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int bp = (bx & 0x20);
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@ -971,7 +974,7 @@ static void palette_init(void)
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/* GG mode : xxxx (0-15) */
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/* */
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/* with x = original CRAM value (2, 3 or 4-bit) */
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/* (*) 2-bit CRAM value is expanded to 4-bit */
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/* (*) 2-bit CRAM value is expanded to 4-bit */
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/************************************************/
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/* Initialize Mode 5 pixel color look-up tables */
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@ -1308,7 +1311,7 @@ void render_bg_m3(int line)
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do
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{
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color = pg[*nt++ << 3];
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*lb++ = 0x10 | ((color >> 4) & 0x0F);
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*lb++ = 0x10 | ((color >> 4) & 0x0F);
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*lb++ = 0x10 | ((color >> 4) & 0x0F);
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@ -1346,7 +1349,7 @@ void render_bg_m3x(int line)
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do
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{
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color = pg[*nt++ << 3];
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*lb++ = 0x10 | ((color >> 4) & 0x0F);
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*lb++ = 0x10 | ((color >> 4) & 0x0F);
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*lb++ = 0x10 | ((color >> 4) & 0x0F);
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@ -1394,10 +1397,10 @@ void render_bg_m4(int line)
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int column;
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uint16 *nt;
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uint32 attr, atex, *src;
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/* 32 x 8 pixels */
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int width = 32;
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/* Horizontal scrolling */
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int index = ((reg[0] & 0x40) && (line < 0x10)) ? 0x100 : reg[0x08];
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int shift = index & 7;
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@ -1422,7 +1425,7 @@ void render_bg_m4(int line)
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{
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/* Vertical scroll mask */
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v_line = v_line % 256;
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/* Pattern name Table */
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nt = (uint16 *)&vram[(0x3700 & nt_mask) + ((v_line >> 3) << 6)];
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}
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@ -1727,7 +1730,7 @@ void render_bg_m5_vs(int line)
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atbuf = nt[index & pf_col_mask];
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DRAW_COLUMN(atbuf, v_line)
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}
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if (w == (line >= a))
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{
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/* Window takes up entire line */
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@ -1755,7 +1758,7 @@ void render_bg_m5_vs(int line)
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#else
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shift = (xscroll >> 16) & 0x0F;
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index = pf_col_mask + start + 1 - ((xscroll >> 20) & pf_col_mask);
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#endif
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#endif
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if(shift)
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{
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@ -2315,7 +2318,7 @@ void render_bg_m5(int line)
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/* Plane B name table */
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nt = (uint32 *)&vram[ntbb + (((v_line >> 3) << pf_shift) & 0x1FC0)];
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/* Pattern row index */
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v_line = (v_line & 7) << 3;
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@ -2330,7 +2333,7 @@ void render_bg_m5(int line)
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atbuf = nt[(index-1) & pf_col_mask];
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DRAW_BG_COLUMN(atbuf, v_line, xscroll, yscroll)
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}
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for(column = 0; column < width; column++, index++)
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{
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atbuf = nt[index & pf_col_mask];
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@ -2555,7 +2558,7 @@ void render_bg_m5_im2(int line)
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/* Window vertical range (cell 0-31) */
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int a = (reg[18] & 0x1F) << 3;
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/* Window position (0=top, 1=bottom) */
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int w = (reg[18] >> 7) & 1;
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@ -2714,7 +2717,7 @@ void render_bg_m5_im2_vs(int line)
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/* Window vertical range (cell 0-31) */
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uint32 a = (reg[18] & 0x1F) << 3;
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/* Window position (0=top, 1=bottom) */
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uint32 w = (reg[18] >> 7) & 1;
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@ -3037,7 +3040,7 @@ void render_obj_m4(int line)
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/* Default sprite width */
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int width = 8;
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/* Sprite Generator address mask (LSB is masked for 8x16 sprites) */
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uint16 sg_mask = (~0x1C0 ^ (reg[6] << 6)) & (~((reg[1] & 0x02) >> 1));
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@ -3099,7 +3102,7 @@ void render_obj_m4(int line)
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{
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/* Draw sprite pattern (zoomed sprites are rendered at half speed) */
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DRAW_SPRITE_TILE_ACCURATE_2X(end,0,lut[5])
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/* 315-5124 VDP specific */
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if (system_hw < SYSTEM_SMS2)
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{
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@ -3697,7 +3700,7 @@ void parse_satb_m4(int line)
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/* Y position */
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int ypos;
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/* Sprite list for next line */
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object_info_t *object_info = obj_info[(line + 1) & 1];
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@ -3837,11 +3840,11 @@ void parse_satb_m5(int line)
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break;
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}
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/* Update sprite list (only name, attribute & xpos are parsed from VRAM) */
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/* Update sprite list (only name, attribute & xpos are parsed from VRAM) */
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object_info->attr = p[link + 2];
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object_info->xpos = p[link + 3] & 0x1ff;
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object_info->ypos = ypos;
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object_info->size = size & 0x0f;
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object_info->size = size & 0x0f;
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/* Increment Sprite count */
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++count;
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@ -3851,7 +3854,7 @@ void parse_satb_m5(int line)
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}
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}
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/* Read link data from internal SAT cache */
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/* Read link data from internal SAT cache */
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link = (q[link + 1] & 0x7F) << 2;
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/* Stop parsing if link data points to first entry (#0) or after the last entry (#64 in H32 mode, #80 in H40 mode) */
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@ -51,11 +51,17 @@
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/* 5:5:5 RGB */
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#elif defined(USE_15BPP_RENDERING)
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#if defined(USE_ABGR)
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#define PIXEL(r,g,b) ((1 << 15) | ((b) << 10) | ((g) << 5) | (r))
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#define GET_B(pixel) (((pixel) & 0x7c00) >> 10)
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#define GET_G(pixel) (((pixel) & 0x03e0) >> 5)
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#define GET_R(pixel) (((pixel) & 0x001f) >> 0)
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#else
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#define PIXEL(r,g,b) ((1 << 15) | ((r) << 10) | ((g) << 5) | (b))
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#define GET_R(pixel) (((pixel) & 0x7c00) >> 10)
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#define GET_G(pixel) (((pixel) & 0x03e0) >> 5)
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#define GET_B(pixel) (((pixel) & 0x001f) >> 0)
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#endif
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/* 5:6:5 RGB */
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#elif defined(USE_16BPP_RENDERING)
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#define PIXEL(r,g,b) (((r) << 11) | ((g) << 5) | (b))
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@ -134,4 +140,3 @@ extern void (*parse_satb)(int line);
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extern void (*update_bg_pattern_cache)(int index);
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#endif /* _RENDER_H_ */
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