110 lines
3.4 KiB
C
110 lines
3.4 KiB
C
/*
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* Copyright 2011-2016 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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#ifndef __UTIL_TEXTURE_H__
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#define __UTIL_TEXTURE_H__
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CCL_NAMESPACE_BEGIN
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/* Texture limits on devices. */
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/* CUDA (Geforce 4xx and 5xx) */
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#define TEX_NUM_FLOAT4_CUDA 5
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#define TEX_NUM_BYTE4_CUDA 84
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#define TEX_NUM_HALF4_CUDA 0
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#define TEX_NUM_FLOAT_CUDA 0
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#define TEX_NUM_BYTE_CUDA 0
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#define TEX_NUM_HALF_CUDA 0
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#define TEX_START_FLOAT4_CUDA 0
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#define TEX_START_BYTE4_CUDA TEX_NUM_FLOAT4_CUDA
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#define TEX_START_HALF4_CUDA (TEX_NUM_FLOAT4_CUDA + TEX_NUM_BYTE4_CUDA)
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#define TEX_START_FLOAT_CUDA (TEX_NUM_FLOAT4_CUDA + TEX_NUM_BYTE4_CUDA + TEX_NUM_HALF4_CUDA)
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#define TEX_START_BYTE_CUDA (TEX_NUM_FLOAT4_CUDA + TEX_NUM_BYTE4_CUDA + TEX_NUM_HALF4_CUDA + TEX_NUM_FLOAT_CUDA)
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#define TEX_START_HALF_CUDA (TEX_NUM_FLOAT4_CUDA + TEX_NUM_BYTE4_CUDA + TEX_NUM_HALF4_CUDA + TEX_NUM_FLOAT_CUDA + TEX_NUM_BYTE_CUDA)
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/* Any architecture other than old CUDA cards */
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#define TEX_NUM_MAX (INT_MAX >> 4)
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/* Color to use when textures are not found. */
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#define TEX_IMAGE_MISSING_R 1
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#define TEX_IMAGE_MISSING_G 0
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#define TEX_IMAGE_MISSING_B 1
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#define TEX_IMAGE_MISSING_A 1
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#if defined (__KERNEL_CUDA__) && (__CUDA_ARCH__ < 300)
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# define kernel_tex_type(tex) (tex < TEX_START_BYTE4_CUDA ? IMAGE_DATA_TYPE_FLOAT4 : IMAGE_DATA_TYPE_BYTE4)
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#else
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# define kernel_tex_type(tex) (tex & IMAGE_DATA_TYPE_MASK)
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#endif
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/* Interpolation types for textures
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* cuda also use texture space to store other objects */
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typedef enum InterpolationType {
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INTERPOLATION_NONE = -1,
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INTERPOLATION_LINEAR = 0,
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INTERPOLATION_CLOSEST = 1,
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INTERPOLATION_CUBIC = 2,
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INTERPOLATION_SMART = 3,
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INTERPOLATION_NUM_TYPES,
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} InterpolationType;
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/* Texture types
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* Since we store the type in the lower bits of a flat index,
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* the shift and bit mask constant below need to be kept in sync. */
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typedef enum ImageDataType {
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IMAGE_DATA_TYPE_FLOAT4 = 0,
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IMAGE_DATA_TYPE_BYTE4 = 1,
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IMAGE_DATA_TYPE_HALF4 = 2,
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IMAGE_DATA_TYPE_FLOAT = 3,
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IMAGE_DATA_TYPE_BYTE = 4,
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IMAGE_DATA_TYPE_HALF = 5,
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IMAGE_DATA_NUM_TYPES
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} ImageDataType;
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#define IMAGE_DATA_TYPE_SHIFT 3
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#define IMAGE_DATA_TYPE_MASK 0x7
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/* Extension types for textures.
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*
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* Defines how the image is extrapolated past its original bounds. */
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typedef enum ExtensionType {
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/* Cause the image to repeat horizontally and vertically. */
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EXTENSION_REPEAT = 0,
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/* Extend by repeating edge pixels of the image. */
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EXTENSION_EXTEND = 1,
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/* Clip to image size and set exterior pixels as transparent. */
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EXTENSION_CLIP = 2,
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EXTENSION_NUM_TYPES,
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} ExtensionType;
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typedef struct TextureInfo {
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/* Pointer, offset or texture depending on device. */
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uint64_t data;
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/* Buffer number for OpenCL. */
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uint cl_buffer;
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/* Interpolation and extension type. */
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uint interpolation, extension;
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/* Dimensions. */
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uint width, height, depth;
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} TextureInfo;
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CCL_NAMESPACE_END
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#endif /* __UTIL_TEXTURE_H__ */
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