forked from bartvdbraak/blender
4a4f043bc4
Until now, single channel textures were packed into a float4, wasting 3 floats per pixel. Memory usage of such textures is now reduced by 3/4. Voxel Attributes such as density, flame and heat benefit from this, but also Bumpmaps with one channel. This commit also includes some cleanup and code deduplication for image loading. Example Smoke render from Cosmos Laundromat: http://www.pasteall.org/pic/show.php?id=102972 Memory here went down from ~600MB to ~300MB. Reviewers: #cycles, brecht Differential Revision: https://developer.blender.org/D1981
146 lines
3.6 KiB
C++
146 lines
3.6 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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/* CPU kernel entry points */
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/* On x86-64, we can assume SSE2, so avoid the extra kernel and compile this
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* one with SSE2 intrinsics.
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*/
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#if defined(__x86_64__) || defined(_M_X64)
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# define __KERNEL_SSE2__
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#endif
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/* When building kernel for native machine detect kernel features from the flags
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* set by compiler.
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*/
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#ifdef WITH_KERNEL_NATIVE
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# ifdef __SSE2__
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# ifndef __KERNEL_SSE2__
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# define __KERNEL_SSE2__
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# endif
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# endif
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# ifdef __SSE3__
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# define __KERNEL_SSE3__
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# endif
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# ifdef __SSSE3__
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# define __KERNEL_SSSE3__
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# endif
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# ifdef __SSE4_1__
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# define __KERNEL_SSE41__
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# endif
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# ifdef __AVX__
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# define __KERNEL_AVX__
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# endif
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# ifdef __AVX2__
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# define __KERNEL_AVX2__
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# endif
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#endif
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/* quiet unused define warnings */
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#if defined(__KERNEL_SSE2__)
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/* do nothing */
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#endif
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#include "kernel.h"
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#define KERNEL_ARCH cpu
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#include "kernel_cpu_impl.h"
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CCL_NAMESPACE_BEGIN
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/* Memory Copy */
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void kernel_const_copy(KernelGlobals *kg, const char *name, void *host, size_t size)
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{
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if(strcmp(name, "__data") == 0)
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memcpy(&kg->__data, host, size);
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else
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assert(0);
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}
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void kernel_tex_copy(KernelGlobals *kg,
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const char *name,
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device_ptr mem,
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size_t width,
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size_t height,
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size_t depth,
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InterpolationType interpolation,
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ExtensionType extension)
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{
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if(0) {
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}
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#define KERNEL_TEX(type, ttype, tname) \
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else if(strcmp(name, #tname) == 0) { \
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kg->tname.data = (type*)mem; \
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kg->tname.width = width; \
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}
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#define KERNEL_IMAGE_TEX(type, ttype, tname)
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#include "kernel_textures.h"
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else if(strstr(name, "__tex_image_float4")) {
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texture_image_float4 *tex = NULL;
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int id = atoi(name + strlen("__tex_image_float4_"));
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int array_index = id;
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if(array_index >= 0 && array_index < TEX_NUM_FLOAT4_IMAGES_CPU) {
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tex = &kg->texture_float4_images[array_index];
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}
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if(tex) {
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tex->data = (float4*)mem;
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tex->dimensions_set(width, height, depth);
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tex->interpolation = interpolation;
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tex->extension = extension;
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}
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}
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else if(strstr(name, "__tex_image_float")) {
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texture_image_float *tex = NULL;
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int id = atoi(name + strlen("__tex_image_float_"));
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int array_index = id - TEX_IMAGE_FLOAT_START_CPU;
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if(array_index >= 0 && array_index < TEX_NUM_FLOAT_IMAGES_CPU) {
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tex = &kg->texture_float_images[array_index];
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}
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if(tex) {
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tex->data = (float*)mem;
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tex->dimensions_set(width, height, depth);
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tex->interpolation = interpolation;
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tex->extension = extension;
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}
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}
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else if(strstr(name, "__tex_image_byte4")) {
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texture_image_uchar4 *tex = NULL;
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int id = atoi(name + strlen("__tex_image_byte4_"));
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int array_index = id - TEX_IMAGE_BYTE4_START_CPU;
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if(array_index >= 0 && array_index < TEX_NUM_BYTE4_IMAGES_CPU) {
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tex = &kg->texture_byte4_images[array_index];
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}
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if(tex) {
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tex->data = (uchar4*)mem;
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tex->dimensions_set(width, height, depth);
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tex->interpolation = interpolation;
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tex->extension = extension;
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}
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}
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else
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assert(0);
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}
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CCL_NAMESPACE_END
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