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(svn r1852) Start cleaning up sprite handling:

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- Complement the sprite header struct with a variable sized array for the sprite data and rename it to Sprite.
- Use the correct type Sprite* instead of casting all the time (this causes some "assignment from incompatible pointer type" warnings, nothing serious, will be resolved soon)
This commit is contained in:
tron 2005-02-08 22:22:42 +00:00
parent 297223cc21
commit 092e72d60d
3 changed files with 26 additions and 24 deletions
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26
gfx.c
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@ -5,7 +5,7 @@
#include "table/palettes.h" #include "table/palettes.h"
#include "hal.h" #include "hal.h"
static void GfxMainBlitter(byte *sprite, int x, int y, int mode); static void GfxMainBlitter(Sprite *sprite, int x, int y, int mode);
static int _stringwidth_out; static int _stringwidth_out;
static byte _cursor_backup[64*64]; static byte _cursor_backup[64*64];
@ -1312,7 +1312,7 @@ static void GfxBlitZoomOutUncomp(BlitterParams *bp)
typedef void (*BlitZoomFunc)(BlitterParams *bp); typedef void (*BlitZoomFunc)(BlitterParams *bp);
static void GfxMainBlitter(byte *sprite, int x, int y, int mode) static void GfxMainBlitter(Sprite *sprite, int x, int y, int mode)
{ {
DrawPixelInfo *dpi = _cur_dpi; DrawPixelInfo *dpi = _cur_dpi;
int start_x, start_y; int start_x, start_y;
@ -1334,13 +1334,13 @@ static void GfxMainBlitter(byte *sprite, int x, int y, int mode)
}; };
/* decode sprite header */ /* decode sprite header */
x += (int16)READ_LE_UINT16(&((SpriteHdr*)sprite)->x_offs); x += (int16)TO_LE16(sprite->x_offs);
y += (int16)READ_LE_UINT16(&((SpriteHdr*)sprite)->y_offs); y += (int16)TO_LE16(sprite->y_offs);
bp.width_org = bp.width = READ_LE_UINT16(&((SpriteHdr*)sprite)->width); bp.width_org = bp.width = TO_LE16(sprite->width);
bp.height_org = bp.height = ((SpriteHdr*)sprite)->height; bp.height_org = bp.height = sprite->height;
info = ((SpriteHdr*)sprite)->info; info = sprite->info;
bp.info = info; bp.info = info;
bp.sprite_org = bp.sprite = sprite + sizeof(SpriteHdr); bp.sprite_org = bp.sprite = sprite->data;
bp.dst = dpi->dst_ptr; bp.dst = dpi->dst_ptr;
bp.mode = mode; bp.mode = mode;
bp.pitch = dpi->pitch; bp.pitch = dpi->pitch;
@ -1905,17 +1905,17 @@ bool FillDrawPixelInfo(DrawPixelInfo *n, DrawPixelInfo *o, int left, int top, in
static void SetCursorSprite(uint cursor) static void SetCursorSprite(uint cursor)
{ {
CursorVars *cv = &_cursor; CursorVars *cv = &_cursor;
byte *p; const Sprite *p;
if (cv->sprite == cursor) if (cv->sprite == cursor)
return; return;
p = GetSpritePtr(cursor & 0x3FFF); p = GetSpritePtr(cursor & 0x3FFF);
cv->sprite = cursor; cv->sprite = cursor;
cv->size.y = *(byte*)(p+1); cv->size.y = p->height;
cv->size.x = READ_LE_UINT16(p+2); cv->size.x = TO_LE16(p->width);
cv->offs.x = (int16)READ_LE_UINT16(p+4); cv->offs.x = (int16)TO_LE16(p->x_offs);
cv->offs.y = (int16)READ_LE_UINT16(p+6); cv->offs.y = (int16)TO_LE16(p->y_offs);
cv->dirty = true; cv->dirty = true;
} }

12
gfx.h
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@ -17,13 +17,15 @@ struct DrawPixelInfo {
}; };
typedef struct SpriteHdr { typedef struct Sprite {
byte info; byte info;
byte height; byte height;
uint16 width; uint16 width; // LE!
int16 x_offs, y_offs; int16 x_offs; // LE!
} SpriteHdr; int16 y_offs; // LE!
assert_compile(sizeof(SpriteHdr) == 8); byte data[VARARRAY_SIZE];
} Sprite;
assert_compile(sizeof(Sprite) == 8);
typedef struct CursorVars { typedef struct CursorVars {
Point pos, size, offs, delta; Point pos, size, offs, delta;

12
spritecache.c
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@ -26,7 +26,7 @@ static const char *_cur_grffile;
static int _loading_stage; static int _loading_stage;
static int _skip_specials; static int _skip_specials;
uint16 _custom_sprites_base; uint16 _custom_sprites_base;
static SpriteHdr _cur_sprite; static Sprite _cur_sprite;
static byte *_sprite_ptr[NUM_SPRITES]; static byte *_sprite_ptr[NUM_SPRITES];
@ -982,7 +982,7 @@ const SpriteDimension *GetSpriteDimension(uint sprite)
SpriteDimension *sd; SpriteDimension *sd;
#ifndef WANT_SPRITESIZES #ifndef WANT_SPRITESIZES
byte *p; const Sprite* p;
p = _sprite_ptr[sprite]; p = _sprite_ptr[sprite];
if (p == NULL) if (p == NULL)
@ -990,10 +990,10 @@ const SpriteDimension *GetSpriteDimension(uint sprite)
/* decode sprite header */ /* decode sprite header */
sd = &sd_static; sd = &sd_static;
sd->xoffs = (int16)READ_LE_UINT16(&((SpriteHdr*)p)->x_offs); sd->xoffs = (int16)TO_LE16(p->x_offs);
sd->yoffs = (int16)READ_LE_UINT16(&((SpriteHdr*)p)->y_offs); sd->yoffs = (int16)TO_LE16(p->y_offs);
sd->xsize = READ_LE_UINT16(&((SpriteHdr*)p)->width); sd->xsize = TO_LE16(p->width);
sd->ysize = ((SpriteHdr*)p)->height; sd->ysize = p->height;
#else #else
sd = &sd_static; sd = &sd_static;
sd->xoffs = _sprite_xoffs[sprite]; sd->xoffs = _sprite_xoffs[sprite];