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Location: cpp/openttd-patchpack/source/src/blitter/32bpp_sse2.cpp - annotation
r22083:cb675a9e53da
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(svn r27247) -Cleanup: Make GrowTownAtRoad return a bool.
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/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file 32bpp_sse2.cpp Implementation of the SSE2 32 bpp blitter. */
#ifdef WITH_SSE
#include "../stdafx.h"
#include "../zoom_func.h"
#include "../settings_type.h"
#include "32bpp_sse2.hpp"
#include "32bpp_sse_func.hpp"
#include "../safeguards.h"
/** Instantiation of the SSE2 32bpp blitter factory. */
static FBlitter_32bppSSE2 iFBlitter_32bppSSE2;
Sprite *Blitter_32bppSSE_Base::Encode(const SpriteLoader::Sprite *sprite, AllocatorProc *allocator)
{
/* First uint32 of a line = the number of transparent pixels from the left.
* Second uint32 of a line = the number of transparent pixels from the right.
* Then all RGBA then all MV.
*/
ZoomLevel zoom_min = ZOOM_LVL_NORMAL;
ZoomLevel zoom_max = ZOOM_LVL_NORMAL;
if (sprite->type != ST_FONT) {
zoom_min = _settings_client.gui.zoom_min;
zoom_max = _settings_client.gui.zoom_max;
if (zoom_max == zoom_min) zoom_max = ZOOM_LVL_MAX;
}
/* Calculate sizes and allocate. */
SpriteData sd;
memset(&sd, 0, sizeof(sd));
uint all_sprites_size = 0;
for (ZoomLevel z = zoom_min; z <= zoom_max; z++) {
const SpriteLoader::Sprite *src_sprite = &sprite[z];
sd.infos[z].sprite_width = src_sprite->width;
sd.infos[z].sprite_offset = all_sprites_size;
sd.infos[z].sprite_line_size = sizeof(Colour) * src_sprite->width + sizeof(uint32) * META_LENGTH;
const uint rgba_size = sd.infos[z].sprite_line_size * src_sprite->height;
sd.infos[z].mv_offset = all_sprites_size + rgba_size;
const uint mv_size = sizeof(MapValue) * src_sprite->width * src_sprite->height;
all_sprites_size += rgba_size + mv_size;
}
Sprite *dst_sprite = (Sprite *) allocator(sizeof(Sprite) + sizeof(SpriteData) + all_sprites_size);
dst_sprite->height = sprite->height;
dst_sprite->width = sprite->width;
dst_sprite->x_offs = sprite->x_offs;
dst_sprite->y_offs = sprite->y_offs;
memcpy(dst_sprite->data, &sd, sizeof(SpriteData));
/* Copy colours and determine flags. */
bool has_remap = false;
bool has_anim = false;
bool has_translucency = false;
for (ZoomLevel z = zoom_min; z <= zoom_max; z++) {
const SpriteLoader::Sprite *src_sprite = &sprite[z];
const SpriteLoader::CommonPixel *src = (const SpriteLoader::CommonPixel *) src_sprite->data;
Colour *dst_rgba_line = (Colour *) &dst_sprite->data[sizeof(SpriteData) + sd.infos[z].sprite_offset];
MapValue *dst_mv = (MapValue *) &dst_sprite->data[sizeof(SpriteData) + sd.infos[z].mv_offset];
for (uint y = src_sprite->height; y != 0; y--) {
Colour *dst_rgba = dst_rgba_line + META_LENGTH;
for (uint x = src_sprite->width; x != 0; x--) {
if (src->a != 0) {
dst_rgba->a = src->a;
if (src->a != 0 && src->a != 255) has_translucency = true;
dst_mv->m = src->m;
if (src->m != 0) {
/* Do some accounting for flags. */
has_remap = true;
if (src->m >= PALETTE_ANIM_START) has_anim = true;
/* Get brightest value (or default brightness if it's a black pixel). */
const uint8 rgb_max = max(src->r, max(src->g, src->b));
dst_mv->v = (rgb_max == 0) ? Blitter_32bppBase::DEFAULT_BRIGHTNESS : rgb_max;
/* Pre-convert the mapping channel to a RGB value. */
const Colour colour = AdjustBrightneSSE(Blitter_32bppBase::LookupColourInPalette(src->m), dst_mv->v);
dst_rgba->r = colour.r;
dst_rgba->g = colour.g;
dst_rgba->b = colour.b;
} else {
dst_rgba->r = src->r;
dst_rgba->g = src->g;
dst_rgba->b = src->b;
dst_mv->v = Blitter_32bppBase::DEFAULT_BRIGHTNESS;
}
} else {
dst_rgba->data = 0;
*(uint16*) dst_mv = 0;
}
dst_rgba++;
dst_mv++;
src++;
}
/* Count the number of transparent pixels from the left. */
dst_rgba = dst_rgba_line + META_LENGTH;
uint32 nb_pix_transp = 0;
for (uint x = src_sprite->width; x != 0; x--) {
if (dst_rgba->a == 0) nb_pix_transp++;
else break;
dst_rgba++;
}
(*dst_rgba_line).data = nb_pix_transp;
Colour *nb_right = dst_rgba_line + 1;
dst_rgba_line = (Colour*) ((byte*) dst_rgba_line + sd.infos[z].sprite_line_size);
/* Count the number of transparent pixels from the right. */
dst_rgba = dst_rgba_line - 1;
nb_pix_transp = 0;
for (uint x = src_sprite->width; x != 0; x--) {
if (dst_rgba->a == 0) nb_pix_transp++;
else break;
dst_rgba--;
}
(*nb_right).data = nb_pix_transp;
}
}
/* Store sprite flags. */
sd.flags = SF_NONE;
if (has_translucency) sd.flags |= SF_TRANSLUCENT;
if (!has_remap) sd.flags |= SF_NO_REMAP;
if (!has_anim) sd.flags |= SF_NO_ANIM;
memcpy(dst_sprite->data, &sd, sizeof(SpriteData));
return dst_sprite;
}
#endif /* WITH_SSE */
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