forked from bartvdbraak/blender
e12c08e8d1
Apply clang format as proposed in T53211. For details on usage and instructions for migrating branches without conflicts, see: https://wiki.blender.org/wiki/Tools/ClangFormat
100 lines
3.2 KiB
C
100 lines
3.2 KiB
C
/*
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* Copyright 2011-2013 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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CCL_NAMESPACE_BEGIN
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ccl_device float4 film_map(KernelGlobals *kg, float4 irradiance, float scale)
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{
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float exposure = kernel_data.film.exposure;
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float4 result = irradiance * scale;
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/* conversion to srgb */
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result.x = color_linear_to_srgb(result.x * exposure);
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result.y = color_linear_to_srgb(result.y * exposure);
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result.z = color_linear_to_srgb(result.z * exposure);
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/* clamp since alpha might be > 1.0 due to russian roulette */
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result.w = saturate(result.w);
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return result;
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}
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ccl_device uchar4 film_float_to_byte(float4 color)
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{
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uchar4 result;
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/* simple float to byte conversion */
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result.x = (uchar)(saturate(color.x) * 255.0f);
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result.y = (uchar)(saturate(color.y) * 255.0f);
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result.z = (uchar)(saturate(color.z) * 255.0f);
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result.w = (uchar)(saturate(color.w) * 255.0f);
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return result;
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}
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ccl_device void kernel_film_convert_to_byte(KernelGlobals *kg,
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ccl_global uchar4 *rgba,
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ccl_global float *buffer,
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float sample_scale,
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int x,
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int y,
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int offset,
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int stride)
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{
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/* buffer offset */
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int index = offset + x + y * stride;
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rgba += index;
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buffer += index * kernel_data.film.pass_stride;
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/* map colors */
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float4 irradiance = *((ccl_global float4 *)buffer);
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float4 float_result = film_map(kg, irradiance, sample_scale);
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uchar4 byte_result = film_float_to_byte(float_result);
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*rgba = byte_result;
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}
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ccl_device void kernel_film_convert_to_half_float(KernelGlobals *kg,
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ccl_global uchar4 *rgba,
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ccl_global float *buffer,
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float sample_scale,
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int x,
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int y,
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int offset,
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int stride)
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{
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/* buffer offset */
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int index = offset + x + y * stride;
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ccl_global float4 *in = (ccl_global float4 *)(buffer + index * kernel_data.film.pass_stride);
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ccl_global half *out = (ccl_global half *)rgba + index * 4;
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float exposure = kernel_data.film.exposure;
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float4 rgba_in = *in;
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if (exposure != 1.0f) {
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rgba_in.x *= exposure;
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rgba_in.y *= exposure;
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rgba_in.z *= exposure;
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}
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float4_store_half(out, rgba_in, sample_scale);
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}
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CCL_NAMESPACE_END
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