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not worth separate mention in the whatsnew: snes drawing improvements, step 7 (and final, for the moment):

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* a few cleanups
This commit is contained in:
Fabio Priuli 2010-03-05 09:18:29 +00:00
parent c396a76810
commit 89e0918c1b
1 changed files with 34 additions and 34 deletions
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56
src/mame/video/snes.c
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@ -135,11 +135,12 @@ enum
* Routine for additive/subtractive blending * Routine for additive/subtractive blending
* between the main and sub screens. * between the main and sub screens.
*****************************************/ *****************************************/
INLINE void snes_draw_blend(UINT16 offset, UINT16 *colour, UINT8 factor, UINT8 clip, UINT8 black_pen_clip )
INLINE void snes_draw_blend( UINT16 offset, UINT16 *colour, UINT8 clip, UINT8 black_pen_clip )
{ {
if ((black_pen_clip == SNES_CLIP_ALL2) || if ((black_pen_clip == SNES_CLIP_ALL2) ||
(black_pen_clip == SNES_CLIP_IN && snes_ppu.clipmasks[SNES_COLOR][offset / factor]) || (black_pen_clip == SNES_CLIP_IN && snes_ppu.clipmasks[SNES_COLOR][offset]) ||
(black_pen_clip == SNES_CLIP_OUT && !snes_ppu.clipmasks[SNES_COLOR][offset / factor])) (black_pen_clip == SNES_CLIP_OUT && !snes_ppu.clipmasks[SNES_COLOR][offset]))
*colour = 0; //clip to black before color math *colour = 0; //clip to black before color math
if (clip == SNES_CLIP_ALL2) // blending mode 3 == always OFF if (clip == SNES_CLIP_ALL2) // blending mode 3 == always OFF
@ -149,8 +150,8 @@ INLINE void snes_draw_blend(UINT16 offset, UINT16 *colour, UINT8 factor, UINT8 c
if (!debug_options.transparency_disabled) if (!debug_options.transparency_disabled)
#endif /* SNES_LAYER_DEBUG */ #endif /* SNES_LAYER_DEBUG */
if ((clip == SNES_CLIP_ALL) || if ((clip == SNES_CLIP_ALL) ||
(clip == SNES_CLIP_IN && !snes_ppu.clipmasks[SNES_COLOR][offset / factor]) || (clip == SNES_CLIP_IN && !snes_ppu.clipmasks[SNES_COLOR][offset]) ||
(clip == SNES_CLIP_OUT && snes_ppu.clipmasks[SNES_COLOR][offset / factor])) (clip == SNES_CLIP_OUT && snes_ppu.clipmasks[SNES_COLOR][offset]))
{ {
UINT16 r, g, b; UINT16 r, g, b;
int clip_max = 0; // if add then clip to 0x1f, if sub then clip to 0 int clip_max = 0; // if add then clip to 0x1f, if sub then clip to 0
@ -224,22 +225,13 @@ INLINE void snes_draw_blend(UINT16 offset, UINT16 *colour, UINT8 factor, UINT8 c
} }
} }
INLINE void snes_draw_blend_lores(UINT16 offset, UINT16 *colour, UINT8 clip, UINT8 black_pen_clip )
{
snes_draw_blend(offset, colour, 1, clip, black_pen_clip);
}
INLINE void snes_draw_blend_hires(UINT16 offset, UINT16 *colour, UINT8 clip, UINT8 black_pen_clip )
{
snes_draw_blend(offset, colour, 1, clip, black_pen_clip);
}
/***************************************** /*****************************************
* snes_draw_tile() * snes_draw_tile()
* *
* Draw tiles with variable bit planes * Draw tiles with variable bit planes
*****************************************/ *****************************************/
INLINE void snes_draw_tile(UINT8 planes, UINT8 layer, UINT16 tileaddr, INT16 x, UINT8 priority, UINT8 flip, UINT16 pal, UINT8 direct_colors, UINT8 hires )
INLINE void snes_draw_tile( UINT8 planes, UINT8 layer, UINT16 tileaddr, INT16 x, UINT8 priority, UINT8 flip, UINT16 pal, UINT8 direct_colors, UINT8 hires )
{ {
UINT8 mask, plane[8]; UINT8 mask, plane[8];
UINT16 c; UINT16 c;
@ -444,7 +436,8 @@ INLINE void snes_draw_tile(UINT8 planes, UINT8 layer, UINT16 tileaddr, INT16 x,
* *
* Draw 2 tiles with variable bit planes * Draw 2 tiles with variable bit planes
*****************************************/ *****************************************/
INLINE void snes_draw_tile_x2(UINT8 planes, UINT8 layer, UINT16 tileaddr, INT16 x, UINT8 priority, UINT8 flip, UINT16 pal, UINT8 direct_colors, UINT8 hires )
INLINE void snes_draw_tile_x2( UINT8 planes, UINT8 layer, UINT16 tileaddr, INT16 x, UINT8 priority, UINT8 flip, UINT16 pal, UINT8 direct_colors, UINT8 hires )
{ {
if (flip) if (flip)
{ {
@ -465,6 +458,7 @@ INLINE void snes_draw_tile_x2(UINT8 planes, UINT8 layer, UINT16 tileaddr, INT16
* The same as snes_draw_tile_4() except * The same as snes_draw_tile_4() except
* that it takes a blend parameter. * that it takes a blend parameter.
*****************************************/ *****************************************/
INLINE void snes_draw_tile_object( UINT16 tileaddr, INT16 x, UINT8 priority, UINT8 flip, UINT16 pal, UINT8 blend ) INLINE void snes_draw_tile_object( UINT16 tileaddr, INT16 x, UINT8 priority, UINT8 flip, UINT16 pal, UINT8 blend )
{ {
UINT8 mask, plane[4]; UINT8 mask, plane[4];
@ -656,14 +650,14 @@ INLINE void snes_update_line( UINT8 color_depth, UINT8 hires, UINT8 priority_a,
while (ii < 256) while (ii < 256)
{ {
/* /*
Tilemap format Tilemap format
vhopppcc cccccccc vhopppcc cccccccc
v/h = Vertical/Horizontal flip this tile. v/h = Vertical/Horizontal flip this tile.
o = Tile priority. o = Tile priority.
ppp = Tile palette. The number of entries in the palette depends on the Mode and the BG. ppp = Tile palette. The number of entries in the palette depends on the Mode and the BG.
cccccccccc = Tile number. cccccccccc = Tile number.
*/ */
// determine the horizontal position (Bishojo Janshi Suchi Pai & Desert Figther have tile_size & hires == 1) // determine the horizontal position (Bishojo Janshi Suchi Pai & Desert Figther have tile_size & hires == 1)
UINT32 xpos = xoff + (ii << (tile_size * hires)); UINT32 xpos = xoff + (ii << (tile_size * hires));
@ -774,6 +768,7 @@ INLINE void snes_update_line( UINT8 color_depth, UINT8 hires, UINT8 priority_a,
* *
* Update an entire line of mode7 tiles. * Update an entire line of mode7 tiles.
*********************************************/ *********************************************/
#define MODE7_CLIP(x) (((x) & 0x2000) ? ((x) | ~0x03ff) : ((x) & 0x03ff)) #define MODE7_CLIP(x) (((x) & 0x2000) ? ((x) | ~0x03ff) : ((x) & 0x03ff))
static void snes_update_line_mode7( UINT8 priority_a, UINT8 priority_b, UINT8 layer, UINT16 curline ) static void snes_update_line_mode7( UINT8 priority_a, UINT8 priority_b, UINT8 layer, UINT16 curline )
@ -948,6 +943,7 @@ static void snes_update_line_mode7( UINT8 priority_a, UINT8 priority_b, UINT8 la
* Update an entire line of sprites. * Update an entire line of sprites.
* FIXME: We need to support high priority bit * FIXME: We need to support high priority bit
*********************************************/ *********************************************/
static void snes_update_objects( UINT8 priority_tbl, UINT16 curline ) static void snes_update_objects( UINT8 priority_tbl, UINT16 curline )
{ {
INT8 xs, ys; INT8 xs, ys;
@ -1086,6 +1082,7 @@ static void snes_update_objects( UINT8 priority_tbl, UINT16 curline )
* *
* Update Mode X line. * Update Mode X line.
*********************************************/ *********************************************/
static void snes_update_mode_0( UINT16 curline ) static void snes_update_mode_0( UINT16 curline )
{ {
#ifdef SNES_LAYER_DEBUG #ifdef SNES_LAYER_DEBUG
@ -1235,7 +1232,8 @@ static void snes_draw_screens( UINT16 curline )
* XOR: ...###..###... ###...##...### * XOR: ...###..###... ###...##...###
* XNOR: ###...##...### ...###..###... * XNOR: ###...##...### ...###..###...
*********************************************/ *********************************************/
static void snes_update_windowmasks(void)
static void snes_update_windowmasks( void )
{ {
UINT16 ii, jj; UINT16 ii, jj;
INT8 w1, w2; INT8 w1, w2;
@ -1306,7 +1304,8 @@ static void snes_update_windowmasks(void)
* *
* Update the offsets with the latest changes. * Update the offsets with the latest changes.
*********************************************/ *********************************************/
static void snes_update_offsets(void)
static void snes_update_offsets( void )
{ {
int ii; int ii;
for (ii = 0; ii < 4; ii++) for (ii = 0; ii < 4; ii++)
@ -1320,6 +1319,7 @@ static void snes_update_offsets(void)
* *
* Redraw the current line. * Redraw the current line.
*********************************************/ *********************************************/
static void snes_refresh_scanline( running_machine *machine, bitmap_t *bitmap, UINT16 curline ) static void snes_refresh_scanline( running_machine *machine, bitmap_t *bitmap, UINT16 curline )
{ {
UINT16 ii; UINT16 ii;
@ -1396,7 +1396,7 @@ static void snes_refresh_scanline( running_machine *machine, bitmap_t *bitmap, U
/* perform color math if the layer wants it (except if it's an object > 192) */ /* perform color math if the layer wants it (except if it's an object > 192) */
if (!scanlines[SNES_MAINSCREEN].blend_exception[x] && snes_ppu.layer[scanlines[SNES_MAINSCREEN].layer[x]].color_math) if (!scanlines[SNES_MAINSCREEN].blend_exception[x] && snes_ppu.layer[scanlines[SNES_MAINSCREEN].layer[x]].color_math)
snes_draw_blend_lores(x, &c, snes_ppu.sub_color_mask, snes_ppu.main_color_mask); snes_draw_blend(x, &c, snes_ppu.sub_color_mask, snes_ppu.main_color_mask);
r = ((c & 0x1f) * fade) >> 4; r = ((c & 0x1f) * fade) >> 4;
g = (((c & 0x3e0) >> 5) * fade) >> 4; g = (((c & 0x3e0) >> 5) * fade) >> 4;
@ -1412,7 +1412,7 @@ static void snes_refresh_scanline( running_machine *machine, bitmap_t *bitmap, U
scanlines[SNES_SUBSCREEN].buffer[x] = temp_col; scanlines[SNES_SUBSCREEN].buffer[x] = temp_col;
if (!scanlines[SNES_SUBSCREEN].blend_exception[x] && snes_ppu.layer[scanlines[SNES_MAINSCREEN].layer[x]].color_math) if (!scanlines[SNES_SUBSCREEN].blend_exception[x] && snes_ppu.layer[scanlines[SNES_MAINSCREEN].layer[x]].color_math)
snes_draw_blend_lores(x, &c, snes_ppu.sub_color_mask, snes_ppu.main_color_mask); snes_draw_blend(x, &c, snes_ppu.sub_color_mask, snes_ppu.main_color_mask);
r = ((c & 0x1f) * fade) >> 4; r = ((c & 0x1f) * fade) >> 4;
g = (((c & 0x3e0) >> 5) * fade) >> 4; g = (((c & 0x3e0) >> 5) * fade) >> 4;