[gegl/gsoc2011-opencl: 76/78] some opencl texture auxiliar functions
- From: Victor Matheus de Araujo Oliveira <vmaolive src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gegl/gsoc2011-opencl: 76/78] some opencl texture auxiliar functions
- Date: Tue, 21 Jun 2011 20:49:39 +0000 (UTC)
commit e7d21ef5b01c67305c0359be37a83216296afc9c
Author: Victor Oliveira <victormatheus gmail com>
Date: Tue Jun 21 17:20:53 2011 -0300
some opencl texture auxiliar functions
gegl/opencl/gegl-cl-texture.c | 59 +++++++++++++++++++++++++++++++++++++++-
gegl/opencl/gegl-cl-texture.h | 7 +++++
2 files changed, 64 insertions(+), 2 deletions(-)
---
diff --git a/gegl/opencl/gegl-cl-texture.c b/gegl/opencl/gegl-cl-texture.c
index 2fe6e4b..b17d323 100644
--- a/gegl/opencl/gegl-cl-texture.c
+++ b/gegl/opencl/gegl-cl-texture.c
@@ -33,7 +33,7 @@ gegl_cl_texture_get (const GeglClTexture *texture,
gpointer dst,
const gint size)
{
- gegl_clEnqueueReadBuffer(gegl_cl_get_command_queue(),
+ gegl_clEnqueueReadBuffer(gegl_cl_get_command_queue(),
texture->data, CL_TRUE, 0, size, dst,
0, NULL, NULL);
gegl_clFinish(gegl_cl_get_command_queue());
@@ -44,7 +44,7 @@ gegl_cl_texture_set (GeglClTexture *texture,
const gpointer src,
const gint size)
{
- gegl_clEnqueueWriteBuffer(gegl_cl_get_command_queue(),
+ gegl_clEnqueueWriteBuffer(gegl_cl_get_command_queue(),
texture->data, CL_TRUE, 0, size, src,
0, NULL, NULL);
gegl_clFinish(gegl_cl_get_command_queue());
@@ -63,3 +63,58 @@ gegl_cl_texture_dup (const GeglClTexture *texture,
return new_texture;
}
+
+void
+gegl_cl_texture_copy (const GeglClTexture *src,
+ GeglClTexture *dst,
+ const gint size)
+{
+ gegl_clEnqueueCopyBuffer (gegl_cl_get_command_queue(),
+ src->data, dst->data,
+ 0, 0, size, 0, NULL, NULL);
+ gegl_clFinish(gegl_cl_get_command_queue());
+}
+
+void
+gegl_cl_texture_clear (const GeglClTexture *texture,
+ const gint size)
+{
+ cl_int errcode;
+ char buffer[16384];
+
+ const char* kernel_source[] =
+ {
+ "__kernel void kernel_clear (__global float* dst) \n",
+ "{ \n",
+ " dst[get_global_id(0)] = 0.0f; \n",
+ "} \n",
+ };
+
+ cl_program program;
+ cl_kernel kernel;
+
+ CL_SAFE_CALL( program = gegl_clCreateProgramWithSource(gegl_cl_get_context(), 4, (const char **)&kernel_source, NULL, &errcode) );
+ errcode = gegl_clBuildProgram(program, 0, NULL, NULL, NULL, NULL);
+ if (errcode != CL_SUCCESS)
+ {
+ CL_SAFE_CALL( errcode = gegl_clGetProgramBuildInfo(program, gegl_cl_get_device(), CL_PROGRAM_BUILD_LOG, sizeof(buffer), buffer, NULL) );
+ g_warning("OpenCL Build Error in Line %u in file %s\nError:%s\n%s",
+ __LINE__, __FILE__, gegl_cl_errstring(errcode), buffer);
+ return FALSE;
+ }
+
+ CL_SAFE_CALL( kernel = gegl_clCreateKernel(program, "kernel_clear", &errcode) );
+ CL_SAFE_CALL( errcode = gegl_clSetKernelArg(kernel, 0, sizeof(cl_mem), (void*)&texture->data) );
+
+ size_t local_worksize;
+ size_t global_worksize;
+
+ // THIS ASSUMES TEXTURE TYPE IS FLOAT !!
+ global_worksize = (size/4);
+
+ CL_SAFE_CALL( errcode = gegl_clEnqueueNDRangeKernel(gegl_cl_get_command_queue(), kernel, 1, NULL, &global_worksize, NULL, 0, NULL, NULL) );
+ gegl_clFinish( errcode = gegl_cl_get_command_queue() );
+
+ CL_SAFE_CALL( errcode = gegl_clReleaseProgram(program) );
+ CL_SAFE_CALL( errcode = gegl_clReleaseKernel(kernel) );
+}
diff --git a/gegl/opencl/gegl-cl-texture.h b/gegl/opencl/gegl-cl-texture.h
index e9bcabb..761f115 100644
--- a/gegl/opencl/gegl-cl-texture.h
+++ b/gegl/opencl/gegl-cl-texture.h
@@ -31,6 +31,13 @@ void gegl_cl_texture_set (GeglClTexture *texture,
GeglClTexture *gegl_cl_texture_dup (const GeglClTexture *texture,
const gint size);
+void gegl_cl_texture_copy (const GeglClTexture *src,
+ GeglClTexture *dst,
+ const gint size);
+
+void gegl_cl_texture_clear (const GeglClTexture *texture,
+ const gint size);
+
#define GEGL_TYPE_CL_TEXTURE (gegl_cl_texture_get_type())
#define gegl_cl_texture_get_data(texture) (texture->data)
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