* Added OpenCL kernel for bokeh blur

 * Uncomment COM_OPENCL_ENABLED from COM_defines.h to test

1 files changed, 55 insertions, 0 deletions

diff --git a/source/blender/compositor/operations/COM_OpenCLKernels.cl.h b/source/blender/compositor/operations/COM_OpenCLKernels.cl.h
new file mode 100644
index 00000000000..3cf33c75272
--- /dev/null
+++ b/source/blender/compositor/operations/COM_OpenCLKernels.cl.h
@@ -0,0 +1,55 @@
+/* clkernelstoh output of file <COM_OpenCLKernels_cl> */
+
+const char * clkernelstoh_COM_OpenCLKernels_cl = "/// This file contains all opencl kernels for node-operation implementations\n" \
+"\n" \
+"// Global SAMPLERS\n" \
+"const sampler_t SAMPLER_NEAREST      = CLK_NORMALIZED_COORDS_FALSE | CLK_ADDRESS_CLAMP_TO_EDGE | CLK_FILTER_NEAREST;\n" \
+"\n" \
+"__constant const int2 zero = {0,0};\n" \
+"\n" \
+"// KERNEL --- BOKEH BLUR ---\n" \
+"__kernel void bokehBlurKernel(__global __read_only image2d_t boundingBox, __global __read_only image2d_t inputImage,\n" \
+"                              __global __read_only image2d_t bokehImage, __global __write_only image2d_t output,\n" \
+"                              int2 offsetInput, int2 offsetOutput, int radius, int step, int2 dimension, int2 offset)\n" \
+"{\n" \
+"	int2 coords = {get_global_id(0), get_global_id(1)};\n" \
+"	coords += offset;\n" \
+"	float tempBoundingBox;\n" \
+"	float4 color = {0.0f,0.0f,0.0f,0.0f};\n" \
+"	float4 multiplyer = {0.0f,0.0f,0.0f,0.0f};\n" \
+"	float4 bokeh;\n" \
+"	const float radius2 = radius*2.0f;\n" \
+"	const int2 realCoordinate = coords + offsetOutput;\n" \
+"\n" \
+"	tempBoundingBox = read_imagef(boundingBox, SAMPLER_NEAREST, coords).s0;\n" \
+"\n" \
+"	if (tempBoundingBox > 0.0f) {\n" \
+"		const int2 bokehImageDim = get_image_dim(bokehImage);\n" \
+"		const int2 bokehImageCenter = bokehImageDim/2;\n" \
+"		const int2 minXY = max(realCoordinate - radius, zero);;\n" \
+"		const int2 maxXY = min(realCoordinate + radius, dimension);;\n" \
+"		int nx, ny;\n" \
+"\n" \
+"		float2 uv;\n" \
+"		int2 inputXy;\n" \
+"\n" \
+"		for (ny = minXY.y, inputXy.y = ny - offsetInput.y ; ny < maxXY.y ; ny +=step, inputXy.y+=step) {\n" \
+"			uv.y = ((realCoordinate.y-ny)/radius2)*bokehImageDim.y+bokehImageCenter.y;\n" \
+"\n" \
+"			for (nx = minXY.x, inputXy.x = nx - offsetInput.x; nx < maxXY.x ; nx +=step, inputXy.x+=step) {\n" \
+"				uv.x = ((realCoordinate.x-nx)/radius2)*bokehImageDim.x+bokehImageCenter.x;\n" \
+"				bokeh = read_imagef(bokehImage, SAMPLER_NEAREST, uv);\n" \
+"				color += bokeh * read_imagef(inputImage, SAMPLER_NEAREST, inputXy);\n" \
+"				multiplyer += bokeh;\n" \
+"			}\n" \
+"		}\n" \
+"		color /= multiplyer;\n" \
+"\n" \
+"	} else {\n" \
+"		int2 imageCoordinates = realCoordinate - offsetInput;\n" \
+"		color = read_imagef(inputImage, SAMPLER_NEAREST, imageCoordinates);\n" \
+"	}\n" \
+"\n" \
+"	write_imagef(output, coords, color);\n" \
+"}\n" \
+"\0";