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(svn r26252) -Codechange: deduplicate code for margin case (MJP)

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This commit is contained in:
rubidium
2014-01-13 18:02:20 +00:00
parent 9a90bed79b
commit 7f6e837b3a
4 changed files with 424 additions and 546 deletions
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220
src/blitter/32bpp_ssse3.cpp
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@@ -44,6 +44,7 @@ inline void Blitter_32bppSSSE3::Draw(const Blitter::BlitterParams *bp, ZoomLevel
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. */
const __m128i a_cm = ALPHA_CONTROL_MASK;
@@ -58,136 +59,107 @@ inline void Blitter_32bppSSSE3::Draw(const Blitter::BlitterParams *bp, ZoomLevel
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;
if (mode == BM_COLOUR_REMAP) src_mv = src_mv_line;
if (read_mode == RM_WITH_MARGIN) {
src += src_rgba_line[0].data;
dst += src_rgba_line[0].data;
if (mode == BM_COLOUR_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: {
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 */
default:
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);
ALPHA_BLEND_2();
_mm_storel_epi64((__m128i*) dst, srcABCD);
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);
ALPHA_BLEND_2();
dst->data = _mm_cvtsi128_si32(srcABCD);
}
break;
case BM_COLOUR_REMAP:
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) {
/* Written so the compiler uses CMOV. */
const Colour src0 = src[0];
const uint m0 = (byte) mvX2;
const uint r0 = remap[m0];
const Colour c0map = (this->LookupColourInPalette(r0).data & 0x00FFFFFF) | (src0.data & 0xFF000000);
Colour c0 = 0; // Use alpha of 0 to keep dst as is.
c0 = r0 == 0 ? c0 : c0map;
c0 = m0 != 0 ? c0 : src0;
srcABCD = _mm_cvtsi32_si128(c0.data);
const Colour src1 = src[1];
const uint m1 = (byte) (mvX2 >> 16);
const uint r1 = remap[m1];
const Colour c1map = (this->LookupColourInPalette(r1).data & 0x00FFFFFF) | (src1.data & 0xFF000000);
Colour c1 = 0;
c1 = r1 == 0 ? c1 : c1map;
c1 = m1 != 0 ? c1 : src1;
INSR32(c1.data, srcABCD, 1);
if ((mvX2 & 0xFF00FF00) != 0x80008000) {
ADJUST_BRIGHTNESS_2(srcABCD, mvX2);
}
}
case RM_WITH_SKIP: {
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);
ALPHA_BLEND_2();
_mm_storel_epi64((__m128i*) dst, srcABCD);
src += 2;
dst += 2;
/* Blend colours. */
ALPHA_BLEND_2();
_mm_storel_epi64((__m128i *) dst, srcABCD);
dst += 2;
src += 2;
src_mv += 2;
}
if ((bt_last == BT_NONE && effective_width & 1) || bt_last == BT_ODD) {
/* 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 = AdjustBrightness(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;
}
}
if ((bt_last == BT_NONE && effective_width & 1) || bt_last == BT_ODD) {
__m128i srcABCD = _mm_cvtsi32_si128(src->data);
} else {
srcABCD = _mm_cvtsi32_si128(src->data);
if (src->a < 255) {
bmcr_alpha_blend_single:
__m128i dstABCD = _mm_cvtsi32_si128(dst->data);
ALPHA_BLEND_2();
dst->data = _mm_cvtsi128_si32(srcABCD);
}
break;
dst->data = _mm_cvtsi128_si32(srcABCD);
}
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 new_width = effective_width - delta_diff;
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_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) {
/* Written so the compiler uses CMOV. */
const Colour src0 = src[0];
const uint m0 = (byte) mvX2;
const uint r0 = remap[m0];
const Colour c0map = (this->LookupColourInPalette(r0).data & 0x00FFFFFF) | (src0.data & 0xFF000000);
Colour c0 = 0; // Use alpha of 0 to keep dst as is.
c0 = r0 == 0 ? c0 : c0map;
c0 = m0 != 0 ? c0 : src0;
srcABCD = _mm_cvtsi32_si128(c0.data);
const Colour src1 = src[1];
const uint m1 = (byte) (mvX2 >> 16);
const uint r1 = remap[m1];
const Colour c1map = (this->LookupColourInPalette(r1).data & 0x00FFFFFF) | (src1.data & 0xFF000000);
Colour c1 = 0;
c1 = r1 == 0 ? c1 : c1map;
c1 = m1 != 0 ? c1 : src1;
INSR32(c1.data, srcABCD, 1);
if ((mvX2 & 0xFF00FF00) != 0x80008000) {
ADJUST_BRIGHTNESS_2(srcABCD, mvX2);
}
}
/* Blend colours. */
ALPHA_BLEND_2();
_mm_storel_epi64((__m128i *) dst, srcABCD);
dst += 2;
src += 2;
src_mv += 2;
}
if ((bt_last == BT_NONE && effective_width & 1) || bt_last == BT_ODD) {
/* 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 = AdjustBrightness(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);
ALPHA_BLEND_2();
}
dst->data = _mm_cvtsi128_si32(srcABCD);
}
}
break;
}
default: NOT_REACHED();
}
src_mv_line += si->sprite_width;
break;
}
case BM_TRANSPARENT: {
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);
@@ -197,6 +169,7 @@ bmcr_alpha_blend_single:
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);
@@ -204,9 +177,10 @@ bmcr_alpha_blend_single:
dst->data = _mm_cvtsi128_si32(dstAB);
}
break;
}
}
next_line:
if (mode == BM_COLOUR_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;
}
@@ -224,19 +198,15 @@ void Blitter_32bppSSSE3::Draw(Blitter::BlitterParams *bp, BlitterMode mode, Zoom
{
switch (mode) {
case BM_NORMAL: {
const BlockType bt_last = (BlockType) (bp->width & 1);
if (bp->skip_left != 0 || bp->width <= MARGIN_NORMAL_THRESHOLD) {
const BlockType bt_last = (BlockType) (bp->width & 1);
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();
}
Draw<BM_NORMAL, RM_WITH_MARGIN, BT_NONE>(bp, zoom); return;
}
break;
}