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Cycles Refactor: Add SSE Utility code from Embree for cleaner SSE code.

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This makes the code a bit easier to understand, and might come in handy
if we want to reuse more Embree code.

Differential Revision: https://developer.blender.org/D482

Code by Brecht, with fixes by Lockal, Sergey and myself.
This commit is contained in:
Thomas Dinges
2014-06-13 21:13:18 +02:00
parent d0573ce905
commit cd5e1ff74e
21 changed files with 1744 additions and 487 deletions
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10
intern/cycles/kernel/svm/svm_image.h
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@@ -134,8 +134,8 @@ ccl_device float4 svm_image_texture(KernelGlobals *kg, int id, float x, float y,
{
#ifdef __KERNEL_CPU__
#ifdef __KERNEL_SSE2__
__m128 r_m128;
float4 &r = (float4 &)r_m128;
ssef r_ssef;
float4 &r = (float4 &)r_ssef;
r = kernel_tex_image_interp(id, x, y);
#else
float4 r = kernel_tex_image_interp(id, x, y);
@@ -318,14 +318,14 @@ ccl_device float4 svm_image_texture(KernelGlobals *kg, int id, float x, float y,
float alpha = r.w;
if(use_alpha && alpha != 1.0f && alpha != 0.0f) {
r_m128 = _mm_div_ps(r_m128, _mm_set1_ps(alpha));
r_ssef = r_ssef / ssef(alpha);
if(id >= TEX_NUM_FLOAT_IMAGES)
r_m128 = _mm_min_ps(r_m128, _mm_set1_ps(1.0f));
r_ssef = min(r_ssef, ssef(1.0f));
r.w = alpha;
}
if(srgb) {
r_m128 = color_srgb_to_scene_linear(r_m128);
r_ssef = color_srgb_to_scene_linear(r_ssef);
r.w = alpha;
}
#else