(svn r26211) -Add: specialised non-animated SS2 blitter (MJP)
With 32bpp base set about 30% faster than 32bpp-optimized, or about 10% for 8bpp base sets in the Draw function. Respectively about 5 and 1% of total run time
This commit is contained in:
rubidium
348
src/blitter/32bpp_sse2.cpp
Normal file
348
src/blitter/32bpp_sse2.cpp
Normal file
@@ -0,0 +1,348 @@
|
||||
/* $Id$ */
|
||||
|
||||
/*
|
||||
* 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"
|
||||
|
||||
/** Instantiation of the SSE2 32bpp blitter factory. */
|
||||
static FBlitter_32bppSSE2 iFBlitter_32bppSSE2;
|
||||
|
||||
/**
|
||||
* Draws a sprite to a (screen) buffer. It is templated to allow faster operation.
|
||||
*
|
||||
* @tparam mode blitter mode
|
||||
* @param bp further blitting parameters
|
||||
* @param zoom zoom level at which we are drawing
|
||||
*/
|
||||
template <BlitterMode mode, Blitter_32bppSSE2::ReadMode read_mode, Blitter_32bppSSE2::BlockType bt_last>
|
||||
inline void Blitter_32bppSSE2::Draw(const Blitter::BlitterParams *bp, ZoomLevel zoom)
|
||||
{
|
||||
Colour *dst_line = (Colour *) bp->dst + bp->top * bp->pitch + bp->left;
|
||||
int effective_width = bp->width;
|
||||
|
||||
/* Find where to start reading in the source sprite */
|
||||
const SpriteData * const sd = (const SpriteData *) bp->sprite;
|
||||
const SpriteInfo * const si = &sd->infos[zoom];
|
||||
const MapValue *src_mv_line = (const MapValue *) &sd->data[si->mv_offset] + bp->skip_top * si->sprite_width;
|
||||
const Colour *src_rgba_line = (const Colour *) ((const byte *) &sd->data[si->sprite_offset] + bp->skip_top * si->sprite_line_size);
|
||||
|
||||
if (read_mode != RM_WITH_MARGIN) {
|
||||
src_rgba_line += bp->skip_left;
|
||||
src_mv_line += bp->skip_left;
|
||||
}
|
||||
|
||||
/* Load these variables into register before loop. */
|
||||
const __m128i clear_hi = CLEAR_HIGH_BYTE_MASK;
|
||||
|
||||
for (int y = bp->height; y != 0; y--) {
|
||||
Colour *dst = dst_line;
|
||||
const Colour *src = src_rgba_line + META_LENGTH;
|
||||
const MapValue *src_mv = src_mv_line;
|
||||
|
||||
switch (mode) {
|
||||
default: {
|
||||
switch (read_mode) {
|
||||
case RM_WITH_MARGIN: {
|
||||
src += src_rgba_line[0].data;
|
||||
dst += src_rgba_line[0].data;
|
||||
const int width_diff = si->sprite_width - bp->width;
|
||||
effective_width = bp->width - (int) src_rgba_line[0].data;
|
||||
const int delta_diff = (int) src_rgba_line[1].data - width_diff;
|
||||
const int new_width = effective_width - (delta_diff & ~1);
|
||||
effective_width = delta_diff > 0 ? new_width : effective_width;
|
||||
if (effective_width <= 0) break;
|
||||
/* FALLTHROUGH */
|
||||
}
|
||||
|
||||
case RM_WITH_SKIP: {
|
||||
for (uint x = (uint) effective_width / 2; x > 0; x--) {
|
||||
__m128i srcABCD = _mm_loadu_si128((const __m128i*) src);
|
||||
__m128i dstABCD = _mm_loadu_si128((__m128i*) dst);
|
||||
ALPHA_BLEND_2();
|
||||
*(uint64*) dst = EXTR64(srcABCD, 0);
|
||||
src += 2;
|
||||
dst += 2;
|
||||
}
|
||||
if (bt_last == BT_ODD) {
|
||||
__m128i srcABCD = _mm_loadu_si128((const __m128i*) src);
|
||||
__m128i dstABCD = _mm_loadu_si128((__m128i*) dst);
|
||||
ALPHA_BLEND_2();
|
||||
(*dst).data = EXTR32(srcABCD, 0);
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
default: NOT_REACHED();
|
||||
}
|
||||
break;
|
||||
}
|
||||
case BM_COLOUR_REMAP: {
|
||||
switch (read_mode) {
|
||||
case RM_WITH_MARGIN: {
|
||||
src += src_rgba_line[0].data;
|
||||
src_mv += src_rgba_line[0].data;
|
||||
dst += src_rgba_line[0].data;
|
||||
const int width_diff = si->sprite_width - bp->width;
|
||||
effective_width = bp->width - (int) src_rgba_line[0].data;
|
||||
const int delta_diff = (int) src_rgba_line[1].data - width_diff;
|
||||
const int nd = effective_width - delta_diff;
|
||||
effective_width = delta_diff > 0 ? nd : effective_width;
|
||||
if (effective_width <= 0) break;
|
||||
/* FALLTHROUGH */
|
||||
}
|
||||
|
||||
case RM_WITH_SKIP: {
|
||||
const byte *remap = bp->remap;
|
||||
for (uint x = (uint) effective_width; x != 0; x--) {
|
||||
/* In case the m-channel is zero, do not remap this pixel in any way */
|
||||
if (src_mv->m == 0) {
|
||||
if (src->a < 255) {
|
||||
__m128i srcABCD = _mm_loadu_si128((const __m128i*) src);
|
||||
__m128i dstABCD = _mm_loadu_si128((__m128i*) dst);
|
||||
ALPHA_BLEND_2();
|
||||
(*dst).data = EXTR32(srcABCD, 0);
|
||||
} else {
|
||||
*dst = src->data;
|
||||
}
|
||||
} else {
|
||||
const uint r = remap[src_mv->m];
|
||||
if (r != 0) {
|
||||
Colour remapped_colour = AdjustBrightness(this->LookupColourInPalette(r), src_mv->v);
|
||||
if (src->a < 255) {
|
||||
__m128i srcABCD;
|
||||
__m128i dstABCD = _mm_loadu_si128((__m128i*) dst);
|
||||
remapped_colour.a = src->a;
|
||||
INSR32(remapped_colour.data, srcABCD, 0);
|
||||
ALPHA_BLEND_2();
|
||||
(*dst).data = EXTR32(srcABCD, 0);
|
||||
} else
|
||||
*dst = remapped_colour;
|
||||
}
|
||||
}
|
||||
src_mv++;
|
||||
dst++;
|
||||
src++;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
default: NOT_REACHED();
|
||||
}
|
||||
src_mv_line += si->sprite_width;
|
||||
break;
|
||||
}
|
||||
case BM_TRANSPARENT:
|
||||
/* Make the current colour a bit more black, so it looks like this image is transparent */
|
||||
for (int x = bp->width; x != 0; x--) {
|
||||
if (src->a == 255) {
|
||||
*dst = MakeTransparent(*dst, 3, 4);
|
||||
} else {
|
||||
*dst = MakeTransparent(*dst, (256 * 4 - src->a), 256 * 4);
|
||||
}
|
||||
dst++;
|
||||
src++;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
src_rgba_line = (const Colour*) ((const byte*) src_rgba_line + si->sprite_line_size);
|
||||
dst_line += bp->pitch;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Draws a sprite to a (screen) buffer. Calls adequate templated function.
|
||||
*
|
||||
* @param bp further blitting parameters
|
||||
* @param mode blitter mode
|
||||
* @param zoom zoom level at which we are drawing
|
||||
*/
|
||||
void Blitter_32bppSSE2::Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom)
|
||||
{
|
||||
switch (mode) {
|
||||
case BM_NORMAL: {
|
||||
const BlockType bt_last = (BlockType) (bp->width & 1);
|
||||
if (bp->skip_left != 0 || bp->width <= MARGIN_NORMAL_THRESHOLD) {
|
||||
switch (bt_last) {
|
||||
case BT_EVEN: Draw<BM_NORMAL, RM_WITH_SKIP, BT_EVEN>(bp, zoom); return;
|
||||
case BT_ODD: Draw<BM_NORMAL, RM_WITH_SKIP, BT_ODD>(bp, zoom); return;
|
||||
default: NOT_REACHED();
|
||||
}
|
||||
} else {
|
||||
switch (bt_last) {
|
||||
case BT_EVEN: Draw<BM_NORMAL, RM_WITH_MARGIN, BT_EVEN>(bp, zoom); return;
|
||||
case BT_ODD: Draw<BM_NORMAL, RM_WITH_MARGIN, BT_ODD>(bp, zoom); return;
|
||||
default: NOT_REACHED();
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
case BM_COLOUR_REMAP:
|
||||
if (bp->skip_left != 0 || bp->width <= MARGIN_REMAP_THRESHOLD) {
|
||||
Draw<BM_COLOUR_REMAP, RM_WITH_SKIP, BT_NONE>(bp, zoom); return;
|
||||
} else {
|
||||
Draw<BM_COLOUR_REMAP, RM_WITH_MARGIN, BT_NONE>(bp, zoom); return;
|
||||
}
|
||||
case BM_TRANSPARENT: Draw<BM_TRANSPARENT, RM_NONE, BT_NONE>(bp, zoom); return;
|
||||
default: NOT_REACHED();
|
||||
}
|
||||
}
|
||||
|
||||
Sprite *Blitter_32bppSSE2::Encode(const SpriteLoader::Sprite *sprite, AllocatorProc *allocator)
|
||||
{
|
||||
/* First uint32 of a line = ~1 & 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;
|
||||
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. */
|
||||
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;
|
||||
dst_mv->m = src->m;
|
||||
if (src->m != 0) {
|
||||
/* 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) ? DEFAULT_BRIGHTNESS : rgb_max;
|
||||
|
||||
/* Pre-convert the mapping channel to a RGB value. */
|
||||
const Colour colour = AdjustBrightness(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 = 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 & ~1; // "& ~1" to preserve the last block type
|
||||
|
||||
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; // no "& ~1" here, must be done when we know bp->width
|
||||
}
|
||||
}
|
||||
|
||||
return dst_sprite;
|
||||
}
|
||||
|
||||
/** ReallyAdjustBrightness() is not called that often.
|
||||
* Inlining this function implies a far jump, which has a huge latency.
|
||||
*/
|
||||
inline Colour Blitter_32bppSSE2::AdjustBrightness(Colour colour, uint8 brightness)
|
||||
{
|
||||
/* Shortcut for normal brightness. */
|
||||
if (brightness == DEFAULT_BRIGHTNESS) return colour;
|
||||
|
||||
return this->ReallyAdjustBrightness(colour, brightness);
|
||||
}
|
||||
|
||||
Colour Blitter_32bppSSE2::ReallyAdjustBrightness(Colour colour, uint8 brightness)
|
||||
{
|
||||
ALIGN(16) uint64 c16 = colour.b | (uint64) colour.g << 16 | (uint64) colour.r << 32;
|
||||
c16 *= brightness;
|
||||
uint64 c16_ob = c16; // Helps out of order execution.
|
||||
c16 /= DEFAULT_BRIGHTNESS;
|
||||
c16 &= 0x01FF01FF01FF;
|
||||
|
||||
/* Sum overbright (maximum for each rgb is 508, 9 bits, -255 is changed in -256 so we just have to take the 8 lower bits into account). */
|
||||
c16_ob = (((c16_ob >> (8 + 7)) & 0x0100010001) * 0xFF) & c16;
|
||||
uint64 ob = (uint16) c16_ob + (uint16) (c16_ob >> 16) + (uint16) (c16_ob >> 32);
|
||||
|
||||
const uint32 alpha32 = colour.data & 0xFF000000;
|
||||
__m128i ret;
|
||||
INSR64(c16, ret, 0);
|
||||
if (ob != 0) {
|
||||
/* Reduce overbright strength. */
|
||||
ob /= 2;
|
||||
__m128i ob128;
|
||||
INSR64(ob | ob << 16 | ob << 32, ob128, 0);
|
||||
__m128i white = OVERBRIGHT_VALUE_MASK;
|
||||
__m128i c128 = ret;
|
||||
ret = _mm_subs_epu16(white, c128); /* PSUBUSW, (255 - rgb) */
|
||||
ret = _mm_mullo_epi16(ret, ob128); /* PMULLW, ob*(255 - rgb) */
|
||||
ret = _mm_srli_epi16(ret, 8); /* PSRLW, ob*(255 - rgb)/256 */
|
||||
ret = _mm_add_epi16(ret, c128); /* PADDW, ob*(255 - rgb)/256 + rgb */
|
||||
}
|
||||
|
||||
ret = _mm_packus_epi16(ret, ret); /* PACKUSWB, saturate and pack. */
|
||||
return alpha32 | EXTR32(ret, 0);
|
||||
}
|
||||
|
||||
#endif /* WITH_SSE */
|
||||
Reference in New Issue
Block a user