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Location: cpp/openttd-patchpack/source/src/blitter/32bpp_sse_func.hpp
r26427:197f9bcb0c32
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Change: Default widget text colour to black.
TC_FROMSTRING really means blue, and we almost never actually use
blue text.
TC_FROMSTRING really means blue, and we almost never actually use
blue text.
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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_sse_func.hpp Functions related to SSE 32 bpp blitter. */
#ifndef BLITTER_32BPP_SSE_FUNC_HPP
#define BLITTER_32BPP_SSE_FUNC_HPP
#ifdef WITH_SSE
GNU_TARGET(SSE_TARGET)
static inline void InsertFirstUint32(const uint32 value, __m128i &into)
{
#if (SSE_VERSION >= 4)
into = _mm_insert_epi32(into, value, 0);
#else
into = _mm_insert_epi16(into, value, 0);
into = _mm_insert_epi16(into, value >> 16, 1);
#endif
}
GNU_TARGET(SSE_TARGET)
static inline void InsertSecondUint32(const uint32 value, __m128i &into)
{
#if (SSE_VERSION >= 4)
into = _mm_insert_epi32(into, value, 1);
#else
into = _mm_insert_epi16(into, value, 2);
into = _mm_insert_epi16(into, value >> 16, 3);
#endif
}
GNU_TARGET(SSE_TARGET)
static inline void LoadUint64(const uint64 value, __m128i &into)
{
#ifdef POINTER_IS_64BIT
into = _mm_cvtsi64_si128(value);
#else
#if (SSE_VERSION >= 4)
into = _mm_cvtsi32_si128(value);
InsertSecondUint32(value >> 32, into);
#else
(*(um128i*) &into).m128i_u64[0] = value;
#endif
#endif
}
GNU_TARGET(SSE_TARGET)
static inline __m128i PackUnsaturated(__m128i from, const __m128i &mask)
{
#if (SSE_VERSION == 2)
from = _mm_and_si128(from, mask); // PAND, wipe high bytes to keep low bytes when packing
return _mm_packus_epi16(from, from); // PACKUSWB, pack 2 colours (with saturation)
#else
return _mm_shuffle_epi8(from, mask);
#endif
}
GNU_TARGET(SSE_TARGET)
static inline __m128i DistributeAlpha(const __m128i from, const __m128i &mask)
{
#if (SSE_VERSION == 2)
__m128i alphaAB = _mm_shufflelo_epi16(from, 0x3F); // PSHUFLW, put alpha1 in front of each rgb1
return _mm_shufflehi_epi16(alphaAB, 0x3F); // PSHUFHW, put alpha2 in front of each rgb2
#else
return _mm_shuffle_epi8(from, mask);
#endif
}
GNU_TARGET(SSE_TARGET)
static inline __m128i AlphaBlendTwoPixels(__m128i src, __m128i dst, const __m128i &distribution_mask, const __m128i &pack_mask)
{
__m128i srcAB = _mm_unpacklo_epi8(src, _mm_setzero_si128()); // PUNPCKLBW, expand each uint8 into uint16
__m128i dstAB = _mm_unpacklo_epi8(dst, _mm_setzero_si128());
__m128i alphaAB = _mm_cmpgt_epi16(srcAB, _mm_setzero_si128()); // PCMPGTW, if (alpha > 0) a++;
alphaAB = _mm_srli_epi16(alphaAB, 15);
alphaAB = _mm_add_epi16(alphaAB, srcAB);
alphaAB = DistributeAlpha(alphaAB, distribution_mask);
srcAB = _mm_sub_epi16(srcAB, dstAB); // PSUBW, (r - Cr)
srcAB = _mm_mullo_epi16(srcAB, alphaAB); // PMULLW, a*(r - Cr)
srcAB = _mm_srli_epi16(srcAB, 8); // PSRLW, a*(r - Cr)/256
srcAB = _mm_add_epi16(srcAB, dstAB); // PADDW, a*(r - Cr)/256 + Cr
return PackUnsaturated(srcAB, pack_mask);
}
/* Darken 2 pixels.
* rgb = rgb * ((256/4) * 4 - (alpha/4)) / ((256/4) * 4)
*/
GNU_TARGET(SSE_TARGET)
static inline __m128i DarkenTwoPixels(__m128i src, __m128i dst, const __m128i &distribution_mask, const __m128i &tr_nom_base)
{
__m128i srcAB = _mm_unpacklo_epi8(src, _mm_setzero_si128());
__m128i dstAB = _mm_unpacklo_epi8(dst, _mm_setzero_si128());
__m128i alphaAB = DistributeAlpha(srcAB, distribution_mask);
alphaAB = _mm_srli_epi16(alphaAB, 2); // Reduce to 64 levels of shades so the max value fits in 16 bits.
__m128i nom = _mm_sub_epi16(tr_nom_base, alphaAB);
dstAB = _mm_mullo_epi16(dstAB, nom);
dstAB = _mm_srli_epi16(dstAB, 8);
return _mm_packus_epi16(dstAB, dstAB);
}
IGNORE_UNINITIALIZED_WARNING_START
GNU_TARGET(SSE_TARGET)
static Colour ReallyAdjustBrightness(Colour colour, uint8 brightness)
{
uint64 c16 = colour.b | (uint64) colour.g << 16 | (uint64) colour.r << 32;
c16 *= brightness;
uint64 c16_ob = c16; // Helps out of order execution.
c16 /= Blitter_32bppBase::DEFAULT_BRIGHTNESS;
c16 &= 0x01FF01FF01FFULL;
/* 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)) & 0x0100010001ULL) * 0xFF) & c16;
const uint ob = ((uint16) c16_ob + (uint16) (c16_ob >> 16) + (uint16) (c16_ob >> 32)) / 2;
const uint32 alpha32 = colour.data & 0xFF000000;
__m128i ret;
LoadUint64(c16, ret);
if (ob != 0) {
__m128i ob128 = _mm_cvtsi32_si128(ob);
ob128 = _mm_shufflelo_epi16(ob128, 0xC0);
__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 | _mm_cvtsi128_si32(ret);
}
IGNORE_UNINITIALIZED_WARNING_STOP
/** ReallyAdjustBrightness() is not called that often.
* Inlining this function implies a far jump, which has a huge latency.
*/
static inline Colour AdjustBrightneSSE(Colour colour, uint8 brightness)
{
/* Shortcut for normal brightness. */
if (brightness == Blitter_32bppBase::DEFAULT_BRIGHTNESS) return colour;
return ReallyAdjustBrightness(colour, brightness);
}
GNU_TARGET(SSE_TARGET)
static inline __m128i AdjustBrightnessOfTwoPixels(__m128i from, uint32 brightness)
{
#if (SSE_VERSION < 3)
NOT_REACHED();
#else
/* The following dataflow differs from the one of AdjustBrightness() only for alpha.
* In order to keep alpha in colAB, insert a 1 in a unused brightness byte (a*1->a).
* OK, not a 1 but DEFAULT_BRIGHTNESS to compensate the div.
*/
brightness &= 0xFF00FF00;
brightness += Blitter_32bppBase::DEFAULT_BRIGHTNESS;
__m128i colAB = _mm_unpacklo_epi8(from, _mm_setzero_si128());
__m128i briAB = _mm_cvtsi32_si128(brightness);
briAB = _mm_shuffle_epi8(briAB, BRIGHTNESS_LOW_CONTROL_MASK); // DEFAULT_BRIGHTNESS in 0, 0x00 in 2.
colAB = _mm_mullo_epi16(colAB, briAB);
__m128i colAB_ob = _mm_srli_epi16(colAB, 8 + 7);
colAB = _mm_srli_epi16(colAB, 7);
/* Sum overbright.
* Maximum for each rgb is 508 => 9 bits. The highest bit tells if there is overbright.
* -255 is changed in -256 so we just have to take the 8 lower bits into account.
*/
colAB = _mm_and_si128(colAB, BRIGHTNESS_DIV_CLEANER);
colAB_ob = _mm_and_si128(colAB_ob, OVERBRIGHT_PRESENCE_MASK);
colAB_ob = _mm_mullo_epi16(colAB_ob, OVERBRIGHT_VALUE_MASK);
colAB_ob = _mm_and_si128(colAB_ob, colAB);
__m128i obAB = _mm_hadd_epi16(_mm_hadd_epi16(colAB_ob, _mm_setzero_si128()), _mm_setzero_si128());
obAB = _mm_srli_epi16(obAB, 1); // Reduce overbright strength.
obAB = _mm_shuffle_epi8(obAB, OVERBRIGHT_CONTROL_MASK);
__m128i retAB = OVERBRIGHT_VALUE_MASK; // ob_mask is equal to white.
retAB = _mm_subs_epu16(retAB, colAB); // (255 - rgb)
retAB = _mm_mullo_epi16(retAB, obAB); // ob*(255 - rgb)
retAB = _mm_srli_epi16(retAB, 8); // ob*(255 - rgb)/256
retAB = _mm_add_epi16(retAB, colAB); // ob*(255 - rgb)/256 + rgb
return _mm_packus_epi16(retAB, retAB);
#endif
}
#if FULL_ANIMATION == 0
/**
* 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
*/
IGNORE_UNINITIALIZED_WARNING_START
template <BlitterMode mode, Blitter_32bppSSE2::ReadMode read_mode, Blitter_32bppSSE2::BlockType bt_last, bool translucent>
GNU_TARGET(SSE_TARGET)
#if (SSE_VERSION == 2)
inline void Blitter_32bppSSE2::Draw(const Blitter::BlitterParams *bp, ZoomLevel zoom)
#elif (SSE_VERSION == 3)
inline void Blitter_32bppSSSE3::Draw(const Blitter::BlitterParams *bp, ZoomLevel zoom)
#elif (SSE_VERSION == 4)
inline void Blitter_32bppSSE4::Draw(const Blitter::BlitterParams *bp, ZoomLevel zoom)
#endif
{
const byte * const remap = bp->remap;
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;
}
const MapValue *src_mv = src_mv_line;
/* Load these variables into register before loop. */
#if (SSE_VERSION == 2)
const __m128i clear_hi = CLEAR_HIGH_BYTE_MASK;
#define ALPHA_BLEND_PARAM_1 clear_hi
#define ALPHA_BLEND_PARAM_2 clear_hi
#define DARKEN_PARAM_1 tr_nom_base
#define DARKEN_PARAM_2 tr_nom_base
#else
const __m128i a_cm = ALPHA_CONTROL_MASK;
const __m128i pack_low_cm = PACK_LOW_CONTROL_MASK;
#define ALPHA_BLEND_PARAM_1 a_cm
#define ALPHA_BLEND_PARAM_2 pack_low_cm
#define DARKEN_PARAM_1 a_cm
#define DARKEN_PARAM_2 tr_nom_base
#endif
const __m128i tr_nom_base = TRANSPARENT_NOM_BASE;
for (int y = bp->height; y != 0; y--) {
Colour *dst = dst_line;
const Colour *src = src_rgba_line + META_LENGTH;
if (mode == BM_COLOUR_REMAP || mode == BM_CRASH_REMAP) src_mv = src_mv_line;
if (read_mode == RM_WITH_MARGIN) {
assert(bt_last == BT_NONE); // or you must ensure block type is preserved
src += src_rgba_line[0].data;
dst += src_rgba_line[0].data;
if (mode == BM_COLOUR_REMAP || mode == BM_CRASH_REMAP) src_mv += 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;
effective_width = delta_diff > 0 ? new_width : effective_width;
if (effective_width <= 0) goto next_line;
}
switch (mode) {
default:
if (!translucent) {
for (uint x = (uint) effective_width; x > 0; x--) {
if (src->a) *dst = *src;
src++;
dst++;
}
break;
}
for (uint x = (uint) effective_width / 2; x > 0; x--) {
__m128i srcABCD = _mm_loadl_epi64((const __m128i*) src);
__m128i dstABCD = _mm_loadl_epi64((__m128i*) dst);
_mm_storel_epi64((__m128i*) dst, AlphaBlendTwoPixels(srcABCD, dstABCD, ALPHA_BLEND_PARAM_1, ALPHA_BLEND_PARAM_2));
src += 2;
dst += 2;
}
if ((bt_last == BT_NONE && effective_width & 1) || bt_last == BT_ODD) {
__m128i srcABCD = _mm_cvtsi32_si128(src->data);
__m128i dstABCD = _mm_cvtsi32_si128(dst->data);
dst->data = _mm_cvtsi128_si32(AlphaBlendTwoPixels(srcABCD, dstABCD, ALPHA_BLEND_PARAM_1, ALPHA_BLEND_PARAM_2));
}
break;
case BM_COLOUR_REMAP:
#if (SSE_VERSION >= 3)
for (uint x = (uint) effective_width / 2; x > 0; x--) {
__m128i srcABCD = _mm_loadl_epi64((const __m128i*) src);
__m128i dstABCD = _mm_loadl_epi64((__m128i*) dst);
uint32 mvX2 = *((uint32 *) const_cast<MapValue *>(src_mv));
/* Remap colours. */
if (mvX2 & 0x00FF00FF) {
#define CMOV_REMAP(m_colour, m_colour_init, m_src, m_m) \
/* Written so the compiler uses CMOV. */ \
Colour m_colour = m_colour_init; \
{ \
const Colour srcm = (Colour) (m_src); \
const uint m = (byte) (m_m); \
const uint r = remap[m]; \
const Colour cmap = (this->LookupColourInPalette(r).data & 0x00FFFFFF) | (srcm.data & 0xFF000000); \
m_colour = r == 0 ? m_colour : cmap; \
m_colour = m != 0 ? m_colour : srcm; \
}
#ifdef POINTER_IS_64BIT
uint64 srcs = _mm_cvtsi128_si64(srcABCD);
uint64 remapped_src = 0;
CMOV_REMAP(c0, 0, srcs, mvX2);
remapped_src = c0.data;
CMOV_REMAP(c1, 0, srcs >> 32, mvX2 >> 16);
remapped_src |= (uint64) c1.data << 32;
srcABCD = _mm_cvtsi64_si128(remapped_src);
#else
Colour remapped_src[2];
CMOV_REMAP(c0, 0, _mm_cvtsi128_si32(srcABCD), mvX2);
remapped_src[0] = c0.data;
CMOV_REMAP(c1, 0, src[1], mvX2 >> 16);
remapped_src[1] = c1.data;
srcABCD = _mm_loadl_epi64((__m128i*) &remapped_src);
#endif
if ((mvX2 & 0xFF00FF00) != 0x80008000) srcABCD = AdjustBrightnessOfTwoPixels(srcABCD, mvX2);
}
/* Blend colours. */
_mm_storel_epi64((__m128i *) dst, AlphaBlendTwoPixels(srcABCD, dstABCD, ALPHA_BLEND_PARAM_1, ALPHA_BLEND_PARAM_2));
dst += 2;
src += 2;
src_mv += 2;
}
if ((bt_last == BT_NONE && effective_width & 1) || bt_last == BT_ODD) {
#else
for (uint x = (uint) effective_width; x > 0; x--) {
#endif
/* In case the m-channel is zero, do not remap this pixel in any way. */
__m128i srcABCD;
if (src_mv->m) {
const uint r = remap[src_mv->m];
if (r != 0) {
Colour remapped_colour = AdjustBrightneSSE(this->LookupColourInPalette(r), src_mv->v);
if (src->a == 255) {
*dst = remapped_colour;
} else {
remapped_colour.a = src->a;
srcABCD = _mm_cvtsi32_si128(remapped_colour.data);
goto bmcr_alpha_blend_single;
}
}
} else {
srcABCD = _mm_cvtsi32_si128(src->data);
if (src->a < 255) {
bmcr_alpha_blend_single:
__m128i dstABCD = _mm_cvtsi32_si128(dst->data);
srcABCD = AlphaBlendTwoPixels(srcABCD, dstABCD, ALPHA_BLEND_PARAM_1, ALPHA_BLEND_PARAM_2);
}
dst->data = _mm_cvtsi128_si32(srcABCD);
}
#if (SSE_VERSION == 2)
src_mv++;
dst++;
src++;
#endif
}
break;
case BM_TRANSPARENT:
/* Make the current colour a bit more black, so it looks like this image is transparent. */
for (uint x = (uint) bp->width / 2; x > 0; x--) {
__m128i srcABCD = _mm_loadl_epi64((const __m128i*) src);
__m128i dstABCD = _mm_loadl_epi64((__m128i*) dst);
_mm_storel_epi64((__m128i *) dst, DarkenTwoPixels(srcABCD, dstABCD, DARKEN_PARAM_1, DARKEN_PARAM_2));
src += 2;
dst += 2;
}
if ((bt_last == BT_NONE && bp->width & 1) || bt_last == BT_ODD) {
__m128i srcABCD = _mm_cvtsi32_si128(src->data);
__m128i dstABCD = _mm_cvtsi32_si128(dst->data);
dst->data = _mm_cvtsi128_si32(DarkenTwoPixels(srcABCD, dstABCD, DARKEN_PARAM_1, DARKEN_PARAM_2));
}
break;
case BM_CRASH_REMAP:
for (uint x = (uint) bp->width; x > 0; x--) {
if (src_mv->m == 0) {
if (src->a != 0) {
uint8 g = MakeDark(src->r, src->g, src->b);
*dst = ComposeColourRGBA(g, g, g, src->a, *dst);
}
} else {
uint r = remap[src_mv->m];
if (r != 0) *dst = ComposeColourPANoCheck(this->AdjustBrightness(this->LookupColourInPalette(r), src_mv->v), src->a, *dst);
}
src_mv++;
dst++;
src++;
}
break;
case BM_BLACK_REMAP:
for (uint x = (uint) bp->width; x > 0; x--) {
if (src->a != 0) {
*dst = Colour(0, 0, 0);
}
src_mv++;
dst++;
src++;
}
break;
}
next_line:
if (mode == BM_COLOUR_REMAP || mode == BM_CRASH_REMAP) src_mv_line += si->sprite_width;
src_rgba_line = (const Colour*) ((const byte*) src_rgba_line + si->sprite_line_size);
dst_line += bp->pitch;
}
}
IGNORE_UNINITIALIZED_WARNING_STOP
/**
* 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
*/
#if (SSE_VERSION == 2)
void Blitter_32bppSSE2::Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom)
#elif (SSE_VERSION == 3)
void Blitter_32bppSSSE3::Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom)
#elif (SSE_VERSION == 4)
void Blitter_32bppSSE4::Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom)
#endif
{
switch (mode) {
default: {
if (bp->skip_left != 0 || bp->width <= MARGIN_NORMAL_THRESHOLD) {
bm_normal:
const BlockType bt_last = (BlockType) (bp->width & 1);
switch (bt_last) {
default: Draw<BM_NORMAL, RM_WITH_SKIP, BT_EVEN, true>(bp, zoom); return;
case BT_ODD: Draw<BM_NORMAL, RM_WITH_SKIP, BT_ODD, true>(bp, zoom); return;
}
} else {
if (((const Blitter_32bppSSE_Base::SpriteData *) bp->sprite)->flags & SF_TRANSLUCENT) {
Draw<BM_NORMAL, RM_WITH_MARGIN, BT_NONE, true>(bp, zoom);
} else {
Draw<BM_NORMAL, RM_WITH_MARGIN, BT_NONE, false>(bp, zoom);
}
return;
}
break;
}
case BM_COLOUR_REMAP:
if (((const Blitter_32bppSSE_Base::SpriteData *) bp->sprite)->flags & SF_NO_REMAP) goto bm_normal;
if (bp->skip_left != 0 || bp->width <= MARGIN_REMAP_THRESHOLD) {
Draw<BM_COLOUR_REMAP, RM_WITH_SKIP, BT_NONE, true>(bp, zoom); return;
} else {
Draw<BM_COLOUR_REMAP, RM_WITH_MARGIN, BT_NONE, true>(bp, zoom); return;
}
case BM_TRANSPARENT: Draw<BM_TRANSPARENT, RM_NONE, BT_NONE, true>(bp, zoom); return;
case BM_CRASH_REMAP: Draw<BM_CRASH_REMAP, RM_NONE, BT_NONE, true>(bp, zoom); return;
case BM_BLACK_REMAP: Draw<BM_BLACK_REMAP, RM_NONE, BT_NONE, true>(bp, zoom); return;
}
}
#endif /* FULL_ANIMATION */
#endif /* WITH_SSE */
#endif /* BLITTER_32BPP_SSE_FUNC_HPP */
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