[iortcw] 164/497: All: Rend2: Replace R_MipMapsRGB() with faster version
Simon McVittie
smcv at debian.org
Fri Sep 8 10:36:44 UTC 2017
This is an automated email from the git hooks/post-receive script.
smcv pushed a commit to annotated tag 1.42d
in repository iortcw.
commit f149cf079cb226ddd68315bc23b914cf3816de40
Author: M4N4T4RMS at gmail.com <M4N4T4RMS at gmail.com@e65d2741-a53d-b2dc-ae96-bb75fa5e4c4a>
Date: Tue Jul 22 19:47:55 2014 +0000
All: Rend2: Replace R_MipMapsRGB() with faster version
---
MP/code/rend2/tr_extramath.h | 3 ---
MP/code/rend2/tr_image.c | 64 +++++++++++++++++++++++++-------------------
SP/code/rend2/tr_extramath.h | 3 ---
SP/code/rend2/tr_image.c | 64 +++++++++++++++++++++++++-------------------
4 files changed, 72 insertions(+), 62 deletions(-)
diff --git a/MP/code/rend2/tr_extramath.h b/MP/code/rend2/tr_extramath.h
index 0223c64..9327153 100644
--- a/MP/code/rend2/tr_extramath.h
+++ b/MP/code/rend2/tr_extramath.h
@@ -56,9 +56,6 @@ void Mat4SimpleInverse( const mat4_t in, mat4_t out);
#define ByteToFloat(a) ((float)(a) * 1.0f/255.0f)
#define FloatToByte(a) (byte)((a) * 255.0f)
-#define RGBtosRGB(a) (((a) < 0.0031308f) ? (12.92f * (a)) : (1.055f * pow((a), 0.41666f) - 0.055f))
-#define sRGBtoRGB(a) (((a) <= 0.04045f) ? ((a) / 12.92f) : (pow((((a) + 0.055f) / 1.055f), 2.4)) )
-
static ID_INLINE int VectorCompare4(const vec4_t v1, const vec4_t v2)
{
if(v1[0] != v2[0] || v1[1] != v2[1] || v1[2] != v2[2] || v1[3] != v2[3])
diff --git a/MP/code/rend2/tr_image.c b/MP/code/rend2/tr_image.c
index 47e28f3..b04226c 100644
--- a/MP/code/rend2/tr_image.c
+++ b/MP/code/rend2/tr_image.c
@@ -1497,43 +1497,51 @@ static void R_MipMap2( byte *in, int inWidth, int inHeight ) {
static void R_MipMapsRGB( byte *in, int inWidth, int inHeight)
{
- int i, j, k;
- int outWidth, outHeight;
- byte *temp;
+ int x, y, c, stride;
+ const byte *in2;
+ float total;
+ static float downmipSrgbLookup[256];
+ static int downmipSrgbLookupSet = 0;
+ byte *out = in;
- outWidth = inWidth >> 1;
- outHeight = inHeight >> 1;
- temp = ri.Hunk_AllocateTempMemory( outWidth * outHeight * 4 );
+ if (!downmipSrgbLookupSet) {
+ for (x = 0; x < 256; x++)
+ downmipSrgbLookup[x] = ((x < 10) ? x / 3294.6f : powf((x / 255.0f + 0.055f) / 1.055f, 2.4f)) * 0.25f;
+ downmipSrgbLookupSet = 1;
+ }
- for ( i = 0 ; i < outHeight ; i++ ) {
- byte *outbyte = temp + ( i * outWidth ) * 4;
- byte *inbyte1 = in + ( i * 2 * inWidth ) * 4;
- byte *inbyte2 = in + ( (i * 2 + 1) * inWidth ) * 4;
- for ( j = 0 ; j < outWidth ; j++ ) {
- for ( k = 0 ; k < 3 ; k++ ) {
- float total, current;
+ if (inWidth == 1 && inHeight == 1)
+ return;
+
+ if (inWidth == 1 || inHeight == 1) {
+ for (x = (inWidth * inHeight) >> 1; x; x--) {
+ for (c = 3; c; c--, in++) {
+ total = (downmipSrgbLookup[*(in)] + downmipSrgbLookup[*(in + 4)]) * 2.0f;
- current = ByteToFloat(inbyte1[0]); total = sRGBtoRGB(current);
- current = ByteToFloat(inbyte1[4]); total += sRGBtoRGB(current);
- current = ByteToFloat(inbyte2[0]); total += sRGBtoRGB(current);
- current = ByteToFloat(inbyte2[4]); total += sRGBtoRGB(current);
+ *out++ = (byte)(powf(total, 1.0f / 2.2f) * 255.0f);
+ }
+ *out++ = (*(in) + *(in + 4)) >> 1; in += 5;
+ }
+
+ return;
+ }
- total *= 0.25f;
+ stride = inWidth * 4;
+ inWidth >>= 1; inHeight >>= 1;
- inbyte1++;
- inbyte2++;
+ in2 = in + stride;
+ for (y = inHeight; y; y--, in += stride, in2 += stride) {
+ for (x = inWidth; x; x--) {
+ for (c = 3; c; c--, in++, in2++) {
+ total = downmipSrgbLookup[*(in)] + downmipSrgbLookup[*(in + 4)]
+ + downmipSrgbLookup[*(in2)] + downmipSrgbLookup[*(in2 + 4)];
- current = RGBtosRGB(total);
- *outbyte++ = FloatToByte(current);
+ *out++ = (byte)(powf(total, 1.0f / 2.2f) * 255.0f);
}
- *outbyte++ = (inbyte1[0] + inbyte1[4] + inbyte2[0] + inbyte2[4]) >> 2;
- inbyte1 += 5;
- inbyte2 += 5;
+
+ *out++ = (*(in) + *(in + 4) + *(in2) + *(in2 + 4)) >> 2; in += 5, in2 += 5;
}
}
-
- Com_Memcpy( in, temp, outWidth * outHeight * 4 );
- ri.Hunk_FreeTempMemory( temp );
}
/*
diff --git a/SP/code/rend2/tr_extramath.h b/SP/code/rend2/tr_extramath.h
index 0223c64..9327153 100644
--- a/SP/code/rend2/tr_extramath.h
+++ b/SP/code/rend2/tr_extramath.h
@@ -56,9 +56,6 @@ void Mat4SimpleInverse( const mat4_t in, mat4_t out);
#define ByteToFloat(a) ((float)(a) * 1.0f/255.0f)
#define FloatToByte(a) (byte)((a) * 255.0f)
-#define RGBtosRGB(a) (((a) < 0.0031308f) ? (12.92f * (a)) : (1.055f * pow((a), 0.41666f) - 0.055f))
-#define sRGBtoRGB(a) (((a) <= 0.04045f) ? ((a) / 12.92f) : (pow((((a) + 0.055f) / 1.055f), 2.4)) )
-
static ID_INLINE int VectorCompare4(const vec4_t v1, const vec4_t v2)
{
if(v1[0] != v2[0] || v1[1] != v2[1] || v1[2] != v2[2] || v1[3] != v2[3])
diff --git a/SP/code/rend2/tr_image.c b/SP/code/rend2/tr_image.c
index 87c79d5..33803ca 100644
--- a/SP/code/rend2/tr_image.c
+++ b/SP/code/rend2/tr_image.c
@@ -1486,43 +1486,51 @@ static void R_MipMap2( byte *in, int inWidth, int inHeight ) {
static void R_MipMapsRGB( byte *in, int inWidth, int inHeight)
{
- int i, j, k;
- int outWidth, outHeight;
- byte *temp;
+ int x, y, c, stride;
+ const byte *in2;
+ float total;
+ static float downmipSrgbLookup[256];
+ static int downmipSrgbLookupSet = 0;
+ byte *out = in;
- outWidth = inWidth >> 1;
- outHeight = inHeight >> 1;
- temp = ri.Hunk_AllocateTempMemory( outWidth * outHeight * 4 );
+ if (!downmipSrgbLookupSet) {
+ for (x = 0; x < 256; x++)
+ downmipSrgbLookup[x] = ((x < 10) ? x / 3294.6f : powf((x / 255.0f + 0.055f) / 1.055f, 2.4f)) * 0.25f;
+ downmipSrgbLookupSet = 1;
+ }
- for ( i = 0 ; i < outHeight ; i++ ) {
- byte *outbyte = temp + ( i * outWidth ) * 4;
- byte *inbyte1 = in + ( i * 2 * inWidth ) * 4;
- byte *inbyte2 = in + ( (i * 2 + 1) * inWidth ) * 4;
- for ( j = 0 ; j < outWidth ; j++ ) {
- for ( k = 0 ; k < 3 ; k++ ) {
- float total, current;
+ if (inWidth == 1 && inHeight == 1)
+ return;
+
+ if (inWidth == 1 || inHeight == 1) {
+ for (x = (inWidth * inHeight) >> 1; x; x--) {
+ for (c = 3; c; c--, in++) {
+ total = (downmipSrgbLookup[*(in)] + downmipSrgbLookup[*(in + 4)]) * 2.0f;
- current = ByteToFloat(inbyte1[0]); total = sRGBtoRGB(current);
- current = ByteToFloat(inbyte1[4]); total += sRGBtoRGB(current);
- current = ByteToFloat(inbyte2[0]); total += sRGBtoRGB(current);
- current = ByteToFloat(inbyte2[4]); total += sRGBtoRGB(current);
+ *out++ = (byte)(powf(total, 1.0f / 2.2f) * 255.0f);
+ }
+ *out++ = (*(in) + *(in + 4)) >> 1; in += 5;
+ }
+
+ return;
+ }
- total *= 0.25f;
+ stride = inWidth * 4;
+ inWidth >>= 1; inHeight >>= 1;
- inbyte1++;
- inbyte2++;
+ in2 = in + stride;
+ for (y = inHeight; y; y--, in += stride, in2 += stride) {
+ for (x = inWidth; x; x--) {
+ for (c = 3; c; c--, in++, in2++) {
+ total = downmipSrgbLookup[*(in)] + downmipSrgbLookup[*(in + 4)]
+ + downmipSrgbLookup[*(in2)] + downmipSrgbLookup[*(in2 + 4)];
- current = RGBtosRGB(total);
- *outbyte++ = FloatToByte(current);
+ *out++ = (byte)(powf(total, 1.0f / 2.2f) * 255.0f);
}
- *outbyte++ = (inbyte1[0] + inbyte1[4] + inbyte2[0] + inbyte2[4]) >> 2;
- inbyte1 += 5;
- inbyte2 += 5;
+
+ *out++ = (*(in) + *(in + 4) + *(in2) + *(in2 + 4)) >> 2; in += 5, in2 += 5;
}
}
-
- Com_Memcpy( in, temp, outWidth * outHeight * 4 );
- ri.Hunk_FreeTempMemory( temp );
}
/*
--
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