forked from bartvdbraak/blender
a18112249d
* Non-Progressive integrator is now available on the GPU (CUDA, sm_20 and above). Implementation details: * kernel_path_trace() has been split up into two functions: kernel_path_trace_non_progressive() and kernel_path_trace_progressive(). * We compile two CUDA kernel entry functions (in kernel.cu) for the two integrators, they are still inside one .cubin file but due to the kernel separation there should be no performance problem. I tested with the BMW file on my Geforce 540M and the render times were the same for 100 samples (1.57 min in my case). This is part of my GSoC project, SVN merge of r59032 + manual merge of UI changes for this from my branch.
115 lines
3.1 KiB
C++
115 lines
3.1 KiB
C++
/*
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* Copyright 2011, Blender Foundation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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/* CPU kernel entry points */
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#include "kernel.h"
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#include "kernel_compat_cpu.h"
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#include "kernel_math.h"
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#include "kernel_types.h"
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#include "kernel_globals.h"
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#include "kernel_film.h"
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#include "kernel_path.h"
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#include "kernel_displace.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, const char *name, device_ptr mem, size_t width, size_t height)
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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_float")) {
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texture_image_float4 *tex = NULL;
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int id = atoi(name + strlen("__tex_image_float_"));
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int array_index = id;
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if (array_index >= 0 && array_index < MAX_FLOAT_IMAGES) {
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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 = (float4*)mem;
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tex->width = width;
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tex->height = height;
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}
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}
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else if(strstr(name, "__tex_image")) {
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texture_image_uchar4 *tex = NULL;
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int id = atoi(name + strlen("__tex_image_"));
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int array_index = id - MAX_FLOAT_IMAGES;
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if (array_index >= 0 && array_index < MAX_BYTE_IMAGES) {
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tex = &kg->texture_byte_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->width = width;
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tex->height = height;
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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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/* Path Tracing */
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void kernel_cpu_path_trace(KernelGlobals *kg, float *buffer, unsigned int *rng_state, int sample, int x, int y, int offset, int stride)
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{
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if(kernel_data.integrator.progressive)
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kernel_path_trace_progressive(kg, buffer, rng_state, sample, x, y, offset, stride);
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else
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kernel_path_trace_non_progressive(kg, buffer, rng_state, sample, x, y, offset, stride);
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}
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/* Tonemapping */
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void kernel_cpu_tonemap(KernelGlobals *kg, uchar4 *rgba, float *buffer, int sample, int x, int y, int offset, int stride)
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{
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kernel_film_tonemap(kg, rgba, buffer, sample, x, y, offset, stride);
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}
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/* Shader Evaluation */
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void kernel_cpu_shader(KernelGlobals *kg, uint4 *input, float4 *output, int type, int i)
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{
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kernel_shader_evaluate(kg, input, output, (ShaderEvalType)type, i);
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}
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CCL_NAMESPACE_END
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