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slightly faster again. amazing.

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@6595 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
beveloper
2004-02-15 16:21:30 +00:00
parent 93d87149dc
commit 39d2157739
1 changed files with 14 additions and 16 deletions
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src/add-ons/media/plugins/avcodec/gfx_conv_c.cpp
+14 -16
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@@ -198,8 +198,8 @@ void gfx_conv_yuv420p_rgb32_c(AVFrame *in, AVFrame *out, int width, int height)
uint32 runs = height / 2; uint32 runs = height / 2;
for (uint32 i = 0; i < runs; i++) { for (uint32 i = 0; i < runs; i++) {
uint8 *pi1Even = i * pi1Inc2 + pi1Base; uint16 *pi1Even = (uint16 *) (i * pi1Inc2 + pi1Base);
uint8 *pi1Odd = pi1Inc + pi1Even; uint16 *pi1Odd = (uint16 *) (pi1Inc + (uint8 *)pi1Even);
uint8 *pi2 = i * pi2Inc + pi2Base; uint8 *pi2 = i * pi2Inc + pi2Base;
uint8 *pi3 = i *pi3Inc + pi3Base; uint8 *pi3 = i *pi3Inc + pi3Base;
@@ -210,51 +210,49 @@ void gfx_conv_yuv420p_rgb32_c(AVFrame *in, AVFrame *out, int width, int height)
B = - 128 + *(pi2++); B = - 128 + *(pi2++);
R = - 128 + *(pi3++); R = - 128 + *(pi3++);
Cr_R = R * 52298;
Cr_G = R * -26640;
Cb_G = B * -12845; Cb_G = B * -12845;
Cb_B = B * 66493; Cb_B = B * 66493;
Cr_R = R * 52298;
Cr_G = R * -26640;
G = *(uint16 *)pi1Even; G = *(pi1Even++);
pi1Even += 2;
Y0 = ((G & 0x000000ff) - 16) * 38142; Y0 = ((G & 0x000000ff) - 16) * 38142;
Y1 = (((G & 0x0000ff00) >> 8) - 16) * 38142; Y1 = (((G & 0x0000ff00) >> 8) - 16) * 38142;
R = (Y0 + Cr_R) >> 15; R = (Y0 + Cr_R) >> 15;
SATURATE(R);
G = (Y0 + Cr_G + Cb_G) >> 15; G = (Y0 + Cr_G + Cb_G) >> 15;
SATURATE(G);
B = (Y0 + Cb_B) >> 15; B = (Y0 + Cb_B) >> 15;
SATURATE(R);
SATURATE(B); SATURATE(B);
SATURATE(G);
poutEven[j] = (R << 16) | (G << 8) | B; poutEven[j] = (R << 16) | (G << 8) | B;
R = (Y1 + Cr_R) >> 15; R = (Y1 + Cr_R) >> 15;
SATURATE(R);
G = (Y1 + Cr_G + Cb_G) >> 15; G = (Y1 + Cr_G + Cb_G) >> 15;
SATURATE(G);
B = (Y1 + Cb_B) >> 15; B = (Y1 + Cb_B) >> 15;
SATURATE(R);
SATURATE(B); SATURATE(B);
SATURATE(G);
poutEven[j + 1] = (R << 16) | (G << 8) | B; poutEven[j + 1] = (R << 16) | (G << 8) | B;
G = *(uint16 *)pi1Odd; G = *(pi1Odd++);
pi1Odd += 2;
Y0 = ((G & 0x000000ff) - 16) * 38142; Y0 = ((G & 0x000000ff) - 16) * 38142;
Y1 = (((G & 0x0000ff00) >> 8) - 16) * 38142; Y1 = (((G & 0x0000ff00) >> 8) - 16) * 38142;
R = (Y0 + Cr_R) >> 15; R = (Y0 + Cr_R) >> 15;
SATURATE(R);
G = (Y0 + Cr_G + Cb_G) >> 15; G = (Y0 + Cr_G + Cb_G) >> 15;
SATURATE(G);
B = (Y0 + Cb_B) >> 15; B = (Y0 + Cb_B) >> 15;
SATURATE(R);
SATURATE(B); SATURATE(B);
SATURATE(G);
poutOdd[j] = (R << 16) | (G << 8) | B; poutOdd[j] = (R << 16) | (G << 8) | B;
R = (Y1 + Cr_R) >> 15; R = (Y1 + Cr_R) >> 15;
SATURATE(R);
G = (Y1 + Cr_G + Cb_G) >> 15; G = (Y1 + Cr_G + Cb_G) >> 15;
SATURATE(G);
B = (Y1 + Cb_B) >> 15; B = (Y1 + Cb_B) >> 15;
SATURATE(R);
SATURATE(B); SATURATE(B);
SATURATE(G);
poutOdd[j + 1] = (R << 16) | (G << 8) | B; poutOdd[j + 1] = (R << 16) | (G << 8) | B;
} }
poutEven = (uint32 *)(poutInc + (uint8 *)poutEven); poutEven = (uint32 *)(poutInc + (uint8 *)poutEven);