gronod/OpenTTD
1
0
Fork 0
mirror of https://github.com/OpenTTD/OpenTTD.git synced 2025-03-06 22:28:56 +00:00
Code Issues Packages Projects Releases Wiki Activity

(svn r26203) -Codechange: unduplicate GfxMainBlitter and GfxMainBlitterViewport

Browse Source
This commit is contained in:
rubidium 2014-01-02 11:47:09 +00:00
parent 9bf21279f8
commit 256a3160c4
1 changed files with 35 additions and 111 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

146
src/gfx.cpp
View File

@ -817,124 +817,38 @@ void DrawSprite(SpriteID img, PaletteID pal, int x, int y, const SubSprite *sub,
}
}
static void GfxMainBlitterViewport(const Sprite *sprite, int x, int y, BlitterMode mode, const SubSprite *sub, SpriteID sprite_id)
/**
* The code for setting up the blitter mode and sprite information before finally drawing the sprite.
* @param sprite The sprite to draw.
* @param x The X location to draw.
* @param y The Y location to draw.
* @param mode The settings for the blitter to pass.
* @param sub Whether to only draw a sub set of the sprite.
* @param zoom The zoom level at which to draw the sprites.
* @tparam ZOOM_BASE The factor required to get the sub sprite information into the right size.
* @tparam SCALED_XY Whether the X and Y are scaled or unscaled.
*/
template <int ZOOM_BASE, bool SCALED_XY>
static void GfxBlitter(const Sprite * const sprite, int x, int y, BlitterMode mode, const SubSprite * const sub, SpriteID sprite_id, ZoomLevel zoom)
{
const DrawPixelInfo *dpi = _cur_dpi;
Blitter::BlitterParams bp;
/* Amount of pixels to clip from the source sprite */
int clip_left = (sub != NULL ? max(0, -sprite->x_offs + sub->left * ZOOM_LVL_BASE ) : 0);
int clip_top = (sub != NULL ? max(0, -sprite->y_offs + sub->top * ZOOM_LVL_BASE ) : 0);
int clip_right = (sub != NULL ? max(0, sprite->width - (-sprite->x_offs + (sub->right + 1) * ZOOM_LVL_BASE)) : 0);
int clip_bottom = (sub != NULL ? max(0, sprite->height - (-sprite->y_offs + (sub->bottom + 1) * ZOOM_LVL_BASE)) : 0);
int clip_left = (sub != NULL ? max(0, -sprite->x_offs + sub->left * ZOOM_BASE ) : 0);
int clip_top = (sub != NULL ? max(0, -sprite->y_offs + sub->top * ZOOM_BASE ) : 0);
int clip_right = (sub != NULL ? max(0, sprite->width - (-sprite->x_offs + (sub->right + 1) * ZOOM_BASE)) : 0);
int clip_bottom = (sub != NULL ? max(0, sprite->height - (-sprite->y_offs + (sub->bottom + 1) * ZOOM_BASE)) : 0);
if (clip_left + clip_right >= sprite->width) return;
if (clip_top + clip_bottom >= sprite->height) return;
/* Move to the correct offset */
x += sprite->x_offs;
y += sprite->y_offs;
/* Copy the main data directly from the sprite */
bp.sprite = sprite->data;
bp.sprite_width = sprite->width;
bp.sprite_height = sprite->height;
bp.width = UnScaleByZoom(sprite->width - clip_left - clip_right, dpi->zoom);
bp.height = UnScaleByZoom(sprite->height - clip_top - clip_bottom, dpi->zoom);
bp.top = 0;
bp.left = 0;
bp.skip_left = UnScaleByZoomLower(clip_left, dpi->zoom);
bp.skip_top = UnScaleByZoomLower(clip_top, dpi->zoom);
x += ScaleByZoom(bp.skip_left, dpi->zoom);
y += ScaleByZoom(bp.skip_top, dpi->zoom);
bp.dst = dpi->dst_ptr;
bp.pitch = dpi->pitch;
bp.remap = _colour_remap_ptr;
assert(sprite->width > 0);
assert(sprite->height > 0);
if (bp.width <= 0) return;
if (bp.height <= 0) return;
y -= dpi->top;
/* Check for top overflow */
if (y < 0) {
bp.height -= -UnScaleByZoom(y, dpi->zoom);
if (bp.height <= 0) return;
bp.skip_top += -UnScaleByZoom(y, dpi->zoom);
y = 0;
} else {
bp.top = UnScaleByZoom(y, dpi->zoom);
if (SCALED_XY) {
/* Scale it */
x = ScaleByZoom(x, zoom);
y = ScaleByZoom(y, zoom);
}
/* Check for bottom overflow */
y += ScaleByZoom(bp.height, dpi->zoom) - dpi->height;
if (y > 0) {
bp.height -= UnScaleByZoom(y, dpi->zoom);
if (bp.height <= 0) return;
}
x -= dpi->left;
/* Check for left overflow */
if (x < 0) {
bp.width -= -UnScaleByZoom(x, dpi->zoom);
if (bp.width <= 0) return;
bp.skip_left += -UnScaleByZoom(x, dpi->zoom);
x = 0;
} else {
bp.left = UnScaleByZoom(x, dpi->zoom);
}
/* Check for right overflow */
x += ScaleByZoom(bp.width, dpi->zoom) - dpi->width;
if (x > 0) {
bp.width -= UnScaleByZoom(x, dpi->zoom);
if (bp.width <= 0) return;
}
assert(bp.skip_left + bp.width <= UnScaleByZoom(sprite->width, dpi->zoom));
assert(bp.skip_top + bp.height <= UnScaleByZoom(sprite->height, dpi->zoom));
/* We do not want to catch the mouse. However we also use that spritenumber for unknown (text) sprites. */
if (_newgrf_debug_sprite_picker.mode == SPM_REDRAW && sprite_id != SPR_CURSOR_MOUSE) {
Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
void *topleft = blitter->MoveTo(bp.dst, bp.left, bp.top);
void *bottomright = blitter->MoveTo(topleft, bp.width - 1, bp.height - 1);
void *clicked = _newgrf_debug_sprite_picker.clicked_pixel;
if (topleft <= clicked && clicked <= bottomright) {
uint offset = (((size_t)clicked - (size_t)topleft) / (blitter->GetScreenDepth() / 8)) % bp.pitch;
if (offset < (uint)bp.width) {
_newgrf_debug_sprite_picker.sprites.Include(sprite_id);
}
}
}
BlitterFactoryBase::GetCurrentBlitter()->Draw(&bp, mode, dpi->zoom);
}
static void GfxMainBlitter(const Sprite *sprite, int x, int y, BlitterMode mode, const SubSprite *sub, SpriteID sprite_id, ZoomLevel zoom)
{
const DrawPixelInfo *dpi = _cur_dpi;
Blitter::BlitterParams bp;
/* Amount of pixels to clip from the source sprite */
int clip_left = (sub != NULL ? max(0, -sprite->x_offs + sub->left ) : 0);
int clip_top = (sub != NULL ? max(0, -sprite->y_offs + sub->top ) : 0);
int clip_right = (sub != NULL ? max(0, sprite->width - (-sprite->x_offs + sub->right + 1)) : 0);
int clip_bottom = (sub != NULL ? max(0, sprite->height - (-sprite->y_offs + sub->bottom + 1)) : 0);
if (clip_left + clip_right >= sprite->width) return;
if (clip_top + clip_bottom >= sprite->height) return;
/* Scale it */
x = ScaleByZoom(x, zoom);
y = ScaleByZoom(y, zoom);
/* Move to the correct offset */
x += sprite->x_offs;
y += sprite->y_offs;
@ -963,7 +877,7 @@ static void GfxMainBlitter(const Sprite *sprite, int x, int y, BlitterMode mode,
if (bp.width <= 0) return;
if (bp.height <= 0) return;
y -= ScaleByZoom(dpi->top, zoom);
y -= SCALED_XY ? ScaleByZoom(dpi->top, zoom) : dpi->top;
/* Check for top overflow */
if (y < 0) {
bp.height -= -UnScaleByZoom(y, zoom);
@ -975,13 +889,13 @@ static void GfxMainBlitter(const Sprite *sprite, int x, int y, BlitterMode mode,
}
/* Check for bottom overflow */
y += ScaleByZoom(bp.height - dpi->height, zoom);
y += SCALED_XY ? ScaleByZoom(bp.height - dpi->height, zoom) : ScaleByZoom(bp.height, zoom) - dpi->height;
if (y > 0) {
bp.height -= UnScaleByZoom(y, zoom);
if (bp.height <= 0) return;
}
x -= ScaleByZoom(dpi->left, zoom);
x -= SCALED_XY ? ScaleByZoom(dpi->left, zoom) : dpi->left;
/* Check for left overflow */
if (x < 0) {
bp.width -= -UnScaleByZoom(x, zoom);
@ -993,7 +907,7 @@ static void GfxMainBlitter(const Sprite *sprite, int x, int y, BlitterMode mode,
}
/* Check for right overflow */
x += ScaleByZoom(bp.width - dpi->width, zoom);
x += SCALED_XY ? ScaleByZoom(bp.width - dpi->width, zoom) : ScaleByZoom(bp.width, zoom) - dpi->width;
if (x > 0) {
bp.width -= UnScaleByZoom(x, zoom);
if (bp.width <= 0) return;
@ -1021,6 +935,16 @@ static void GfxMainBlitter(const Sprite *sprite, int x, int y, BlitterMode mode,
BlitterFactoryBase::GetCurrentBlitter()->Draw(&bp, mode, zoom);
}
static void GfxMainBlitterViewport(const Sprite *sprite, int x, int y, BlitterMode mode, const SubSprite *sub, SpriteID sprite_id)
{
GfxBlitter<ZOOM_LVL_BASE, false>(sprite, x, y, mode, sub, sprite_id, _cur_dpi->zoom);
}
static void GfxMainBlitter(const Sprite *sprite, int x, int y, BlitterMode mode, const SubSprite *sub, SpriteID sprite_id, ZoomLevel zoom)
{
GfxBlitter<1, true>(sprite, x, y, mode, sub, sprite_id, zoom);
}
void DoPaletteAnimations();
void GfxInitPalettes()