dave/openttd
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Sprite cache: Allow caching only required subset of sprite zoom levels

Browse Source 
Enable for blitters based on 32bpp_optimized or SSE
This commit is contained in:
Jonathan G Rennison
2023-08-22 22:16:04 +01:00
parent 785216db73
commit 46f5fb9f25
28 changed files with 423 additions and 172 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
src/blitter/32bpp_optimized.cpp
View File

@@ -301,6 +301,7 @@ template <bool Tpal_to_rgb> Sprite *Blitter_32bppOptimized::EncodeInternal(const
ZoomLevel zoom_min;
ZoomLevel zoom_max;
uint8 missing_zoom_levels = 0;
if (sprite->type == SpriteType::Font) {
zoom_min = ZOOM_LVL_NORMAL;
@@ -317,6 +318,7 @@ template <bool Tpal_to_rgb> Sprite *Blitter_32bppOptimized::EncodeInternal(const
uint n_size = 0;
for (ZoomLevel z = zoom_min; z <= zoom_max; z++) {
const SpriteLoader::Sprite *src_orig = &sprite[z];
if (src_orig->data == nullptr) continue;
uint size = src_orig->height * src_orig->width;
@@ -339,6 +341,13 @@ template <bool Tpal_to_rgb> Sprite *Blitter_32bppOptimized::EncodeInternal(const
const SpriteLoader::CommonPixel *src = (const SpriteLoader::CommonPixel *)src_orig->data;
if (src == nullptr) {
lengths[z][0] = 0;
lengths[z][1] = 0;
SetBit(missing_zoom_levels, z);
continue;
}
for (uint y = src_orig->height; y > 0; y--) {
/* Index 0 of dst_px and dst_n is left as space to save the length of the row to be filled later. */
Colour *dst_px = (Colour *)&dst_px_ln[1];
@@ -448,24 +457,34 @@ template <bool Tpal_to_rgb> Sprite *Blitter_32bppOptimized::EncodeInternal(const
len += lengths[z][0] + lengths[z][1];
}
Sprite *dest_sprite = (Sprite *)allocator(sizeof(*dest_sprite) + sizeof(SpriteData) + len);
Sprite *dest_sprite = (Sprite *)allocator(sizeof(Sprite) + sizeof(SpriteData) + len);
if (len == 0) {
/* Mark sprite as having no levels at all, and therefore replaceable */
missing_zoom_levels = UINT8_MAX;
}
dest_sprite->height = sprite->height;
dest_sprite->width = sprite->width;
dest_sprite->x_offs = sprite->x_offs;
dest_sprite->y_offs = sprite->y_offs;
dest_sprite->next = nullptr;
dest_sprite->missing_zoom_levels = missing_zoom_levels;
SpriteData *dst = (SpriteData *)dest_sprite->data;
memset(dst, 0, sizeof(*dst));
/* Store sprite flags. */
dst->flags = flags;
uint32 next_offset = 0;
for (ZoomLevel z = zoom_min; z <= zoom_max; z++) {
dst->offset[z][0] = z == zoom_min ? 0 : lengths[z - 1][1] + dst->offset[z - 1][1];
dst->offset[z][1] = lengths[z][0] + dst->offset[z][0];
dst->offset[z][0] = next_offset;
dst->offset[z][1] = lengths[z][0] + next_offset;
memcpy(dst->data + dst->offset[z][0], dst_px_orig[z], lengths[z][0]);
memcpy(dst->data + dst->offset[z][1], dst_n_orig[z], lengths[z][1]);
next_offset += lengths[z][0] + lengths[z][1];
if (lengths[z][0] != 0) memcpy(dst->data + dst->offset[z][0], dst_px_orig[z], lengths[z][0]);
if (lengths[z][1] != 0) memcpy(dst->data + dst->offset[z][1], dst_n_orig[z], lengths[z][1]);
}
free(px_buffer);