libretro/ppsspp
1
0
Fork 0
mirror of https://github.com/libretro/ppsspp.git synced 2025-02-23 18:30:46 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

softgpu: Get all tex samples at the same time.

Browse Source 
Kills a bunch of overhead, improving speed more.
This commit is contained in:
Unknown W. Brackets 2014-03-16 15:51:47 -07:00
parent d9e29a2edf
commit 7f3e158a0f
1 changed files with 87 additions and 51 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

138
GPU/Software/Rasterizer.cpp
View File

@ -236,10 +236,22 @@ static inline void GetTextureCoordinates(const VertexData& v0, const VertexData&
}
}
static inline u32 SampleNearest(int level, unsigned int u, unsigned int v, const u8 *srcptr, int texbufwidthbits)
struct Nearest4 {
MEMORY_ALIGNED16(u32 v[4]);
operator u32() const {
return v[0];
}
};
template <int N>
inline static Nearest4 SampleNearest(int level, int u[N], int v[N], const u8 *srcptr, int texbufwidthbits)
{
if (!srcptr)
return 0;
Nearest4 res;
if (!srcptr) {
memset(res.v, 0, sizeof(res.v));
return res;
}
GETextureFormat texfmt = gstate.getTextureFormat();
@ -247,69 +259,96 @@ static inline u32 SampleNearest(int level, unsigned int u, unsigned int v, const
switch (texfmt) {
case GE_TFMT_4444:
srcptr += GetPixelDataOffset<16>(texbufwidthbits, u, v);
return DecodeRGBA4444(*(const u16*)srcptr);
for (int i = 0; i < N; ++i) {
const u8 *src = srcptr + GetPixelDataOffset<16>(texbufwidthbits, u[i], v[i]);
res.v[i] = DecodeRGBA4444(*(const u16 *)src);
}
return res;
case GE_TFMT_5551:
srcptr += GetPixelDataOffset<16>(texbufwidthbits, u, v);
return DecodeRGBA5551(*(const u16*)srcptr);
for (int i = 0; i < N; ++i) {
const u8 *src = srcptr + GetPixelDataOffset<16>(texbufwidthbits, u[i], v[i]);
res.v[i] = DecodeRGBA5551(*(const u16 *)src);
}
return res;
case GE_TFMT_5650:
srcptr += GetPixelDataOffset<16>(texbufwidthbits, u, v);
return DecodeRGB565(*(const u16*)srcptr);
for (int i = 0; i < N; ++i) {
const u8 *src = srcptr + GetPixelDataOffset<16>(texbufwidthbits, u[i], v[i]);
res.v[i] = DecodeRGB565(*(const u16 *)src);
}
return res;
case GE_TFMT_8888:
srcptr += GetPixelDataOffset<32>(texbufwidthbits, u, v);
return DecodeRGBA8888(*(const u32 *)srcptr);
for (int i = 0; i < N; ++i) {
const u8 *src = srcptr + GetPixelDataOffset<32>(texbufwidthbits, u[i], v[i]);
res.v[i] = DecodeRGBA8888(*(const u32 *)src);
}
return res;
case GE_TFMT_CLUT32:
{
srcptr += GetPixelDataOffset<32>(texbufwidthbits, u, v);
u32 val = srcptr[0] + (srcptr[1] << 8) + (srcptr[2] << 16) + (srcptr[3] << 24);
return LookupColor(gstate.transformClutIndex(val), level);
for (int i = 0; i < N; ++i) {
const u8 *src = srcptr + GetPixelDataOffset<32>(texbufwidthbits, u[i], v[i]);
u32 val = src[0] + (src[1] << 8) + (src[2] << 16) + (src[3] << 24);
res.v[i] = LookupColor(gstate.transformClutIndex(val), level);
}
return res;
case GE_TFMT_CLUT16:
{
srcptr += GetPixelDataOffset<16>(texbufwidthbits, u, v);
u16 val = srcptr[0] + (srcptr[1] << 8);
return LookupColor(gstate.transformClutIndex(val), level);
for (int i = 0; i < N; ++i) {
const u8 *src = srcptr + GetPixelDataOffset<16>(texbufwidthbits, u[i], v[i]);
u16 val = src[0] + (src[1] << 8);
res.v[i] = LookupColor(gstate.transformClutIndex(val), level);
}
return res;
case GE_TFMT_CLUT8:
{
srcptr += GetPixelDataOffset<8>(texbufwidthbits, u, v);
u8 val = *srcptr;
return LookupColor(gstate.transformClutIndex(val), level);
for (int i = 0; i < N; ++i) {
const u8 *src = srcptr + GetPixelDataOffset<8>(texbufwidthbits, u[i], v[i]);
u8 val = *src;
res.v[i] = LookupColor(gstate.transformClutIndex(val), level);
}
return res;
case GE_TFMT_CLUT4:
{
srcptr += GetPixelDataOffset<4>(texbufwidthbits, u, v);
u8 val = (u & 1) ? (srcptr[0] >> 4) : (srcptr[0] & 0xF);
return LookupColor(gstate.transformClutIndex(val), level);
for (int i = 0; i < N; ++i) {
const u8 *src = srcptr + GetPixelDataOffset<4>(texbufwidthbits, u[i], v[i]);
u8 val = (u[i] & 1) ? (src[0] >> 4) : (src[0] & 0xF);
res.v[i] = LookupColor(gstate.transformClutIndex(val), level);
}
return res;
case GE_TFMT_DXT1:
{
const DXT1Block *block = (const DXT1Block *)srcptr + (v / 4) * (texbufwidthbits / 8 / 4) + (u / 4);
for (int i = 0; i < N; ++i) {
const DXT1Block *block = (const DXT1Block *)srcptr + (v[i] / 4) * (texbufwidthbits / 8 / 4) + (u[i] / 4);
u32 data[4 * 4];
DecodeDXT1Block(data, block, 4);
return DecodeRGBA8888(data[4 * (v % 4) + (u % 4)]);
res.v[i] = DecodeRGBA8888(data[4 * (v[i] % 4) + (u[i] % 4)]);
}
return res;
case GE_TFMT_DXT3:
{
const DXT3Block *block = (const DXT3Block *)srcptr + (v / 4) * (texbufwidthbits / 8 / 4) + (u / 4);
for (int i = 0; i < N; ++i) {
const DXT3Block *block = (const DXT3Block *)srcptr + (v[i] / 4) * (texbufwidthbits / 8 / 4) + (u[i] / 4);
u32 data[4 * 4];
DecodeDXT3Block(data, block, 4);
return DecodeRGBA8888(data[4 * (v % 4) + (u % 4)]);
res.v[i] = DecodeRGBA8888(data[4 * (v[i] % 4) + (u[i] % 4)]);
}
return res;
case GE_TFMT_DXT5:
{
const DXT5Block *block = (const DXT5Block *)srcptr + (v / 4) * (texbufwidthbits / 8 / 4) + (u / 4);
for (int i = 0; i < N; ++i) {
const DXT5Block *block = (const DXT5Block *)srcptr + (v[i] / 4) * (texbufwidthbits / 8 / 4) + (u[i] / 4);
u32 data[4 * 4];
DecodeDXT5Block(data, block, 4);
return DecodeRGBA8888(data[4 * (v % 4) + (u % 4)]);
res.v[i] = DecodeRGBA8888(data[4 * (v[i] % 4) + (u[i] % 4)]);
}
return res;
default:
ERROR_LOG_REPORT(G3D, "Software: Unsupported texture format: %x", texfmt);
return 0;
memset(res.v, 0, sizeof(res.v));
return res;
}
}
@ -969,21 +1008,17 @@ inline void ApplyTexturing(Vec4<int> &prim_color, float s, float t, int maxTexLe
const u8 *tptr = texptr[texlevel];
if (!bilinear) {
// Nearest filtering only. Round texcoords or just chop bits?
texcolor = Vec4<int>::FromRGBA(SampleNearest(texlevel, u[0], v[0], tptr, bufwbits));
texcolor = Vec4<int>::FromRGBA(SampleNearest<1>(texlevel, u, v, tptr, bufwbits));
} else {
#if defined(_M_SSE)
MEMORY_ALIGNED16(u32 tc[2]);
MEMORY_ALIGNED16(u32 bc[2]);
tc[0] = SampleNearest(texlevel, u[0], v[0], tptr, bufwbits);
tc[1] = SampleNearest(texlevel, u[1], v[1], tptr, bufwbits);
bc[0] = SampleNearest(texlevel, u[2], v[2], tptr, bufwbits);
bc[1] = SampleNearest(texlevel, u[3], v[3], tptr, bufwbits);
Nearest4 c = SampleNearest<4>(texlevel, u, v, tptr, bufwbits);
const __m128i z = _mm_setzero_si128();
__m128i tvec = _mm_unpacklo_epi8(_mm_load_si128((const __m128i *)tc), z);
__m128i cvec = _mm_load_si128((const __m128i *)c.v);
__m128i tvec = _mm_unpacklo_epi8(cvec, z);
tvec = _mm_mullo_epi16(tvec, _mm_set1_epi16(0x100 - frac_v));
__m128i bvec = _mm_unpacklo_epi8(_mm_load_si128((const __m128i *)bc), z);
__m128i bvec = _mm_unpackhi_epi8(cvec, z);
bvec = _mm_mullo_epi16(bvec, _mm_set1_epi16(frac_v));
// This multiplies the left and right sides. We shift right after, although this may round down...
@ -994,10 +1029,11 @@ inline void ApplyTexturing(Vec4<int> &prim_color, float s, float t, int maxTexLe
__m128i res = _mm_add_epi16(tmp, _mm_shuffle_epi32(tmp, _MM_SHUFFLE(3, 2, 3, 2)));
texcolor = Vec4<int>(_mm_unpacklo_epi16(res, z));
#else
Vec4<int> texcolor_tl = Vec4<int>::FromRGBA(SampleNearest(texlevel, u[0], v[0], tptr, bufwbits));
Vec4<int> texcolor_tr = Vec4<int>::FromRGBA(SampleNearest(texlevel, u[1], v[1], tptr, bufwbits));
Vec4<int> texcolor_bl = Vec4<int>::FromRGBA(SampleNearest(texlevel, u[2], v[2], tptr, bufwbits));
Vec4<int> texcolor_br = Vec4<int>::FromRGBA(SampleNearest(texlevel, u[3], v[3], tptr, bufwbits));
Nearest4 nearest = SampleNearest<4>(texlevel, u, v, tptr, bufwbits);
Vec4<int> texcolor_tl = Vec4<int>::FromRGBA(nearest.v[0]);
Vec4<int> texcolor_tr = Vec4<int>::FromRGBA(nearest.v[1]);
Vec4<int> texcolor_bl = Vec4<int>::FromRGBA(nearest.v[2]);
Vec4<int> texcolor_br = Vec4<int>::FromRGBA(nearest.v[3]);
// 0x100 causes a slight bias to tl, but without it we'd have to divide by 255 * 255.
Vec4<int> t = texcolor_tl * (0x100 - frac_u) + texcolor_tr * frac_u;
Vec4<int> b = texcolor_bl * (0x100 - frac_u) + texcolor_br * frac_u;
@ -1425,7 +1461,7 @@ bool GetCurrentTexture(GPUDebugBuffer &buffer)
u32 *row = (u32 *)buffer.GetData();
for (int y = 0; y < h; ++y) {
for (int x = 0; x < w; ++x) {
row[x] = SampleNearest(0, x, y, texptr, texbufwidthbits);
row[x] = SampleNearest<1>(0, &x, &y, texptr, texbufwidthbits);
}
row += w;
}