Cycles OpenCL: make displacement and world importance sampling work.

intern/cycles/kernel/kernel.cl

@@ -25,6 +25,7 @@
 
 #include "kernel_film.h"
 #include "kernel_path.h"
+#include "kernel_displace.h"
 
 __kernel void kernel_ocl_path_trace(
 	__constant KernelData *data,
@@ -80,10 +81,28 @@ __kernel void kernel_ocl_tonemap(
 		kernel_film_tonemap(kg, rgba, buffer, sample, x, y, offset, stride);
 }
 
-/*__kernel void kernel_ocl_shader(__global uint4 *input, __global float *output, int type, int sx)
+__kernel void kernel_ocl_shader(
+	__constant KernelData *data,
+	__global uint4 *input,
+	__global float4 *output,
+
+#define KERNEL_TEX(type, ttype, name) \
+	__global type *name,
+#include "kernel_textures.h"
+
+	int type, int sx, int sw)
 {
+	KernelGlobals kglobals, *kg = &kglobals;
+
+	kg->data = data;
+
+#define KERNEL_TEX(type, ttype, name) \
+	kg->name = name;
+#include "kernel_textures.h"
+
 	int x = sx + get_global_id(0);
 
-	kernel_shader_evaluate(input, output, (ShaderEvalType)type, x);
-}*/
+	if(x < sx + sw)
+		kernel_shader_evaluate(kg, input, output, (ShaderEvalType)type, x);
+}
 

intern/cycles/kernel/kernel_displace.h

@@ -18,7 +18,7 @@
 
 CCL_NAMESPACE_BEGIN
 
-__device void kernel_shader_evaluate(KernelGlobals *kg, uint4 *input, float4 *output, ShaderEvalType type, int i)
+__device void kernel_shader_evaluate(KernelGlobals *kg, __global uint4 *input, __global float4 *output, ShaderEvalType type, int i)
 {
 	ShaderData sd;
 	uint4 in = input[i];

intern/cycles/kernel/kernel_types.h

@@ -150,10 +150,10 @@ CCL_NAMESPACE_BEGIN
 
 /* Shader Evaluation */
 
-enum ShaderEvalType {
+typedef enum ShaderEvalType {
 	SHADER_EVAL_DISPLACE,
 	SHADER_EVAL_BACKGROUND
-};
+} ShaderEvalType;
 
 /* Path Tracing
  * note we need to keep the u/v pairs at even values */