static gboolean
cl_process (GeglOperation *operation,
cl_mem in_buf,
cl_mem out_buf,
const size_t n_pixels,
const GeglRectangle *roi,
gint level)
{
GeglOperationClass *operation_class = GEGL_OPERATION_GET_CLASS (operation);
GeglClRunData *cl_data = operation_class->cl_data;
GeglProperties *o = GEGL_PROPERTIES (operation);
const size_t gbl_size[2] = {roi->width, roi->height};
const size_t gbl_off[2] = {roi->x, roi->y};
cl_int cl_err = 0;
cl_mem filter_pat = NULL;
if (!cl_data)
goto error;
filter_pat = gegl_clCreateBuffer (gegl_cl_get_context (),
CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR,
pattern_width[o->pattern] *
pattern_height[o->pattern] * sizeof(cl_int),
(void*)pattern[o->pattern],
&cl_err);
CL_CHECK;
cl_err = gegl_cl_set_kernel_args (cl_data->kernel[0],
sizeof(cl_mem), &in_buf,
sizeof(cl_mem), &out_buf,
sizeof(cl_mem), &filter_pat,
sizeof(cl_int), &pattern_width[o->pattern],
sizeof(cl_int), &pattern_height[o->pattern],
sizeof(cl_int), &o->additive,
sizeof(cl_int), &o->rotated,
NULL);
CL_CHECK;
cl_err = gegl_clEnqueueNDRangeKernel (gegl_cl_get_command_queue (),
cl_data->kernel[0], 2,
gbl_off, gbl_size, NULL,
0, NULL, NULL);
CL_CHECK;
cl_err = gegl_clFinish (gegl_cl_get_command_queue ());
CL_CHECK;
cl_err = gegl_clReleaseMemObject (filter_pat);
CL_CHECK;
return FALSE;
error:
if (filter_pat)
gegl_clReleaseMemObject (filter_pat);
return TRUE;
}
static gboolean
cl_bilateral (cl_mem in_tex,
cl_mem out_tex,
const GeglRectangle *roi,
const GeglRectangle *src_rect,
gint s_sigma,
gfloat r_sigma)
{
cl_int cl_err = 0;
gint c;
const gint width = src_rect->width;
const gint height = src_rect->height;
const gint sw = (width -1) / s_sigma + 1;
const gint sh = (height-1) / s_sigma + 1;
const gint depth = (int)(1.0f / r_sigma) + 1;
size_t global_ws[2];
size_t local_ws[2];
cl_mem grid = NULL;
cl_mem blur[4] = {NULL, NULL, NULL, NULL};
if (!cl_data)
{
const char *kernel_name[] = {"bilateral_downsample",
"bilateral_blur",
"bilateral_interpolate",
NULL};
cl_data = gegl_cl_compile_and_build (bilateral_filter_fast_cl_source, kernel_name);
}
if (!cl_data)
return 1;
grid = gegl_clCreateBuffer (gegl_cl_get_context (),
CL_MEM_READ_WRITE,
sw * sh * depth * sizeof(cl_float8),
NULL,
&cl_err);
CL_CHECK;
for(c = 0; c < 4; c++)
{
blur[c] = gegl_clCreateBuffer (gegl_cl_get_context (),
CL_MEM_READ_WRITE,
sw * sh * depth * sizeof(cl_float2),
NULL, &cl_err);
CL_CHECK;
}
local_ws[0] = 8;
local_ws[1] = 8;
global_ws[0] = ((sw + local_ws[0] - 1)/local_ws[0])*local_ws[0];
global_ws[1] = ((sh + local_ws[1] - 1)/local_ws[1])*local_ws[1];
gegl_cl_set_kernel_args (cl_data->kernel[0],
sizeof(cl_mem), &in_tex,
sizeof(cl_mem), &grid,
sizeof(cl_int), &width,
sizeof(cl_int), &height,
sizeof(cl_int), &sw,
sizeof(cl_int), &sh,
sizeof(cl_int), &depth,
sizeof(cl_int), &s_sigma,
sizeof(cl_float), &r_sigma,
NULL);
CL_CHECK;
cl_err = gegl_clEnqueueNDRangeKernel (gegl_cl_get_command_queue (),
cl_data->kernel[0], 2,
NULL, global_ws, local_ws,
0, NULL, NULL);
CL_CHECK;
local_ws[0] = 16;
local_ws[1] = 16;
global_ws[0] = ((sw + local_ws[0] - 1)/local_ws[0])*local_ws[0];
global_ws[1] = ((sh + local_ws[1] - 1)/local_ws[1])*local_ws[1];
gegl_cl_set_kernel_args (cl_data->kernel[1],
sizeof(cl_mem), &grid,
sizeof(cl_mem), &blur[0],
sizeof(cl_mem), &blur[1],
sizeof(cl_mem), &blur[2],
sizeof(cl_mem), &blur[3],
sizeof(cl_int), &sw,
sizeof(cl_int), &sh,
sizeof(cl_int), &depth,
NULL);
cl_err = gegl_clEnqueueNDRangeKernel (gegl_cl_get_command_queue (),
cl_data->kernel[1], 2,
NULL, global_ws, local_ws,
0, NULL, NULL);
CL_CHECK;
global_ws[0] = width;
global_ws[1] = height;
gegl_cl_set_kernel_args (cl_data->kernel[2],
sizeof(cl_mem), &in_tex,
sizeof(cl_mem), &blur[0],
sizeof(cl_mem), &blur[1],
sizeof(cl_mem), &blur[2],
sizeof(cl_mem), &blur[3],
sizeof(cl_mem), &out_tex,
sizeof(cl_int), &width,
sizeof(cl_int), &sw,
sizeof(cl_int), &sh,
sizeof(cl_int), &depth,
sizeof(cl_int), &s_sigma,
sizeof(cl_float), &r_sigma,
NULL);
CL_CHECK;
cl_err = gegl_clEnqueueNDRangeKernel(gegl_cl_get_command_queue (),
cl_data->kernel[2], 2,
NULL, global_ws, NULL,
0, NULL, NULL);
CL_CHECK;
cl_err = gegl_clFinish (gegl_cl_get_command_queue ());
CL_CHECK;
cl_err = gegl_clReleaseMemObject (grid);
CL_CHECK_ONLY (cl_err);
for(c = 0; c < 4; c++)
{
cl_err = gegl_clReleaseMemObject (blur[c]);
CL_CHECK_ONLY (cl_err);
}
return FALSE;
error:
if (grid)
gegl_clReleaseMemObject (grid);
for (c = 0; c < 4; c++)
{
if (blur[c])
gegl_clReleaseMemObject (blur[c]);
}
return TRUE;
}
gboolean
gegl_buffer_cl_iterator_next (GeglBufferClIterator *iterator, gboolean *err)
{
GeglBufferClIterators *i = (gpointer)iterator;
gboolean result = FALSE;
gint no, j;
cl_int cl_err = 0;
if (i->is_finished)
g_error ("%s called on finished buffer iterator", G_STRFUNC);
if (i->iteration_no == 0)
{
for (no=0; no<i->iterators;no++)
{
if (i->buffer[no])
{
gint j;
gboolean found = FALSE;
for (j=0; j<no; j++)
if (i->buffer[no]==i->buffer[j])
{
found = TRUE;
break;
}
if (!found)
gegl_buffer_lock (i->buffer[no]);
if (i->flags[no] == GEGL_CL_BUFFER_WRITE
|| (i->flags[no] == GEGL_CL_BUFFER_READ
&& (i->area[no][0] > 0 || i->area[no][1] > 0 || i->area[no][2] > 0 || i->area[no][3] > 0)))
{
gegl_buffer_cl_cache_flush (i->buffer[no], &i->rect[no]);
}
}
}
}
else
{
/* complete pending write work */
for (no=0; no<i->iterators;no++)
{
if (i->flags[no] == GEGL_CL_BUFFER_WRITE)
{
/* Wait Processing */
cl_err = gegl_clEnqueueBarrier(gegl_cl_get_command_queue());
if (cl_err != CL_SUCCESS) CL_ERROR;
/* color conversion in the GPU (output) */
if (i->conv[no] == GEGL_CL_COLOR_CONVERT)
for (j=0; j < i->n; j++)
{
cl_err = gegl_cl_color_conv (i->tex_op[no][j], i->tex_buf[no][j], i->size[no][j],
i->format[no], i->buffer[no]->soft_format);
if (cl_err == FALSE) CL_ERROR;
}
/* Wait Processing */
cl_err = gegl_clEnqueueBarrier(gegl_cl_get_command_queue());
if (cl_err != CL_SUCCESS) CL_ERROR;
/* GPU -> CPU */
for (j=0; j < i->n; j++)
{
gpointer data;
/* tile-ize */
if (i->conv[no] == GEGL_CL_COLOR_NOT_SUPPORTED)
{
data = gegl_clEnqueueMapBuffer(gegl_cl_get_command_queue(), i->tex_op[no][j], CL_TRUE,
CL_MAP_READ,
0, i->size[no][j] * i->op_cl_format_size [no],
0, NULL, NULL, &cl_err);
if (cl_err != CL_SUCCESS) CL_ERROR;
/* color conversion using BABL */
gegl_buffer_set (i->buffer[no], &i->roi[no][j], 0, i->format[no], data, GEGL_AUTO_ROWSTRIDE);
cl_err = gegl_clEnqueueUnmapMemObject (gegl_cl_get_command_queue(), i->tex_op[no][j], data,
0, NULL, NULL);
if (cl_err != CL_SUCCESS) CL_ERROR;
}
else
#ifdef OPENCL_USE_CACHE
{
gegl_buffer_cl_cache_new (i->buffer[no], &i->roi[no][j], i->tex_buf[no][j]);
/* don't release this texture */
i->tex_buf[no][j] = NULL;
}
#else
{
data = gegl_clEnqueueMapBuffer(gegl_cl_get_command_queue(), i->tex_buf[no][j], CL_TRUE,
CL_MAP_READ,
0, i->size[no][j] * i->buf_cl_format_size [no],
0, NULL, NULL, &cl_err);
if (cl_err != CL_SUCCESS) CL_ERROR;
/* color conversion using BABL */
gegl_buffer_set (i->buffer[no], &i->roi[no][j], i->format[no], data, GEGL_AUTO_ROWSTRIDE);
cl_err = gegl_clEnqueueUnmapMemObject (gegl_cl_get_command_queue(), i->tex_buf[no][j], data,
0, NULL, NULL);
if (cl_err != CL_SUCCESS) CL_ERROR;
}
#endif
}
}
}
/* Run! */
cl_err = gegl_clFinish(gegl_cl_get_command_queue());
if (cl_err != CL_SUCCESS) CL_ERROR;
for (no=0; no < i->iterators; no++)
for (j=0; j < i->n; j++)
{
if (i->tex_buf_from_cache [no][j])
{
gboolean ok = gegl_buffer_cl_cache_release (i->tex_buf[no][j]);
g_assert (ok);
}
if (i->tex_buf[no][j] && !i->tex_buf_from_cache [no][j])
gegl_clReleaseMemObject (i->tex_buf[no][j]);
if (i->tex_op [no][j])
gegl_clReleaseMemObject (i->tex_op [no][j]);
i->tex [no][j] = NULL;
i->tex_buf[no][j] = NULL;
i->tex_op [no][j] = NULL;
}
}
g_assert (i->iterators > 0);
result = (i->roi_no >= i->rois)? FALSE : TRUE;
i->n = MIN(GEGL_CL_NTEX, i->rois - i->roi_no);
/* then we iterate all */
for (no=0; no<i->iterators;no++)
{
for (j = 0; j < i->n; j++)
{
GeglRectangle r = {i->rect[no].x + i->roi_all[i->roi_no+j].x - i->area[no][0],
i->rect[no].y + i->roi_all[i->roi_no+j].y - i->area[no][2],
i->roi_all[i->roi_no+j].width + i->area[no][0] + i->area[no][1],
i->roi_all[i->roi_no+j].height + i->area[no][2] + i->area[no][3]};
i->roi [no][j] = r;
i->size[no][j] = r.width * r.height;
}
if (i->flags[no] == GEGL_CL_BUFFER_READ)
{
for (j=0; j < i->n; j++)
{
gpointer data;
/* un-tile */
switch (i->conv[no])
{
case GEGL_CL_COLOR_NOT_SUPPORTED:
{
gegl_buffer_cl_cache_flush (i->buffer[no], &i->roi[no][j]);
g_assert (i->tex_op[no][j] == NULL);
i->tex_op[no][j] = gegl_clCreateBuffer (gegl_cl_get_context (),
CL_MEM_ALLOC_HOST_PTR | CL_MEM_READ_ONLY,
i->size[no][j] * i->op_cl_format_size [no],
NULL, &cl_err);
if (cl_err != CL_SUCCESS) CL_ERROR;
/* pre-pinned memory */
data = gegl_clEnqueueMapBuffer(gegl_cl_get_command_queue(), i->tex_op[no][j], CL_TRUE,
CL_MAP_WRITE,
0, i->size[no][j] * i->op_cl_format_size [no],
0, NULL, NULL, &cl_err);
if (cl_err != CL_SUCCESS) CL_ERROR;
/* color conversion using BABL */
gegl_buffer_get (i->buffer[no], &i->roi[no][j], 1.0, i->format[no], data, GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
cl_err = gegl_clEnqueueUnmapMemObject (gegl_cl_get_command_queue(), i->tex_op[no][j], data,
0, NULL, NULL);
if (cl_err != CL_SUCCESS) CL_ERROR;
i->tex[no][j] = i->tex_op[no][j];
break;
}
case GEGL_CL_COLOR_EQUAL:
{
i->tex_buf[no][j] = gegl_buffer_cl_cache_get (i->buffer[no], &i->roi[no][j]);
if (i->tex_buf[no][j])
i->tex_buf_from_cache [no][j] = TRUE; /* don't free texture from cache */
else
{
gegl_buffer_cl_cache_flush (i->buffer[no], &i->roi[no][j]);
g_assert (i->tex_buf[no][j] == NULL);
i->tex_buf[no][j] = gegl_clCreateBuffer (gegl_cl_get_context (),
CL_MEM_ALLOC_HOST_PTR | CL_MEM_READ_ONLY,
i->size[no][j] * i->buf_cl_format_size [no],
NULL, &cl_err);
if (cl_err != CL_SUCCESS) CL_ERROR;
/* pre-pinned memory */
data = gegl_clEnqueueMapBuffer(gegl_cl_get_command_queue(), i->tex_buf[no][j], CL_TRUE,
CL_MAP_WRITE,
0, i->size[no][j] * i->buf_cl_format_size [no],
0, NULL, NULL, &cl_err);
if (cl_err != CL_SUCCESS) CL_ERROR;
/* color conversion will be performed in the GPU later */
gegl_buffer_cl_worker_transf (i->buffer[no], data, i->buf_cl_format_size [no], i->roi[no][j], FALSE);
cl_err = gegl_clEnqueueUnmapMemObject (gegl_cl_get_command_queue(), i->tex_buf[no][j], data,
0, NULL, NULL);
if (cl_err != CL_SUCCESS) CL_ERROR;
}
i->tex[no][j] = i->tex_buf[no][j];
break;
}
case GEGL_CL_COLOR_CONVERT:
{
i->tex_buf[no][j] = gegl_buffer_cl_cache_get (i->buffer[no], &i->roi[no][j]);
if (i->tex_buf[no][j])
i->tex_buf_from_cache [no][j] = TRUE; /* don't free texture from cache */
else
{
gegl_buffer_cl_cache_flush (i->buffer[no], &i->roi[no][j]);
g_assert (i->tex_buf[no][j] == NULL);
i->tex_buf[no][j] = gegl_clCreateBuffer (gegl_cl_get_context (),
CL_MEM_ALLOC_HOST_PTR | CL_MEM_READ_ONLY,
i->size[no][j] * i->buf_cl_format_size [no],
NULL, &cl_err);
if (cl_err != CL_SUCCESS) CL_ERROR;
/* pre-pinned memory */
data = gegl_clEnqueueMapBuffer(gegl_cl_get_command_queue(), i->tex_buf[no][j], CL_TRUE,
CL_MAP_WRITE,
0, i->size[no][j] * i->buf_cl_format_size [no],
0, NULL, NULL, &cl_err);
if (cl_err != CL_SUCCESS) CL_ERROR;
/* color conversion will be performed in the GPU later */
/* get buffer data using multiple worker threads
to increase bandwidth */
gegl_buffer_cl_worker_transf (i->buffer[no], data, i->buf_cl_format_size [no], i->roi[no][j], FALSE);
cl_err = gegl_clEnqueueUnmapMemObject (gegl_cl_get_command_queue(), i->tex_buf[no][j], data,
0, NULL, NULL);
if (cl_err != CL_SUCCESS) CL_ERROR;
}
g_assert (i->tex_op[no][j] == NULL);
i->tex_op[no][j] = gegl_clCreateBuffer (gegl_cl_get_context (),
CL_MEM_READ_WRITE,
i->size[no][j] * i->op_cl_format_size [no],
NULL, &cl_err);
if (cl_err != CL_SUCCESS) CL_ERROR;
/* color conversion in the GPU (input) */
g_assert (i->tex_buf[no][j] && i->tex_op[no][j]);
cl_err = gegl_cl_color_conv (i->tex_buf[no][j], i->tex_op[no][j], i->size[no][j],
i->buffer[no]->soft_format, i->format[no]);
if (cl_err == FALSE) CL_ERROR;
i->tex[no][j] = i->tex_op[no][j];
break;
}
}
}
/* Wait Processing */
cl_err = gegl_clEnqueueBarrier(gegl_cl_get_command_queue());
if (cl_err != CL_SUCCESS) CL_ERROR;
}
else if (i->flags[no] == GEGL_CL_BUFFER_WRITE)
{
for (j=0; j < i->n; j++)
{
switch (i->conv[no])
{
case GEGL_CL_COLOR_NOT_SUPPORTED:
{
g_assert (i->tex_op[no][j] == NULL);
i->tex_op[no][j] = gegl_clCreateBuffer (gegl_cl_get_context (),
CL_MEM_ALLOC_HOST_PTR | CL_MEM_WRITE_ONLY,
i->size[no][j] * i->op_cl_format_size [no],
NULL, &cl_err);
if (cl_err != CL_SUCCESS) CL_ERROR;
i->tex[no][j] = i->tex_op[no][j];
break;
}
case GEGL_CL_COLOR_EQUAL:
{
g_assert (i->tex_buf[no][j] == NULL);
i->tex_buf[no][j] = gegl_clCreateBuffer (gegl_cl_get_context (),
CL_MEM_ALLOC_HOST_PTR | CL_MEM_READ_WRITE, /* cache */
i->size[no][j] * i->buf_cl_format_size [no],
NULL, &cl_err);
if (cl_err != CL_SUCCESS) CL_ERROR;
i->tex[no][j] = i->tex_buf[no][j];
break;
}
case GEGL_CL_COLOR_CONVERT:
{
g_assert (i->tex_buf[no][j] == NULL);
i->tex_buf[no][j] = gegl_clCreateBuffer (gegl_cl_get_context (),
CL_MEM_ALLOC_HOST_PTR | CL_MEM_READ_WRITE, /* cache */
i->size[no][j] * i->buf_cl_format_size [no],
NULL, &cl_err);
if (cl_err != CL_SUCCESS) CL_ERROR;
g_assert (i->tex_op[no][j] == NULL);
i->tex_op[no][j] = gegl_clCreateBuffer (gegl_cl_get_context (),
CL_MEM_READ_WRITE,
i->size[no][j] * i->op_cl_format_size [no],
NULL, &cl_err);
if (cl_err != CL_SUCCESS) CL_ERROR;
i->tex[no][j] = i->tex_op[no][j];
break;
}
}
}
}
else if (i->flags[no] == GEGL_CL_BUFFER_AUX)
{
for (j=0; j < i->n; j++)
{
g_assert (i->tex_op[no][j] == NULL);
i->tex_op[no][j] = gegl_clCreateBuffer (gegl_cl_get_context (),
CL_MEM_READ_WRITE,
i->size[no][j] * i->op_cl_format_size [no],
NULL, &cl_err);
if (cl_err != CL_SUCCESS) CL_ERROR;
i->tex[no][j] = i->tex_op[no][j];
}
}
}
i->roi_no += i->n;
i->iteration_no++;
if (result == FALSE)
{
for (no=0; no<i->iterators;no++)
{
if (i->buffer[no])
{
gint j;
gboolean found = FALSE;
for (j=0; j<no; j++)
if (i->buffer[no]==i->buffer[j])
{
found = TRUE;
break;
}
if (!found)
gegl_buffer_unlock (i->buffer[no]);
g_object_unref (i->buffer[no]);
}
}
i->is_finished = TRUE;
g_free (i->roi_all);
g_slice_free (GeglBufferClIterators, i);
}
*err = FALSE;
return result;
error:
for (no=0; no<i->iterators;no++)
for (j=0; j < i->n; j++)
{
if (i->tex_buf[no][j]) gegl_clReleaseMemObject (i->tex_buf[no][j]);
if (i->tex_op [no][j]) gegl_clReleaseMemObject (i->tex_op [no][j]);
i->tex [no][j] = NULL;
i->tex_buf[no][j] = NULL;
i->tex_op [no][j] = NULL;
}
*err = TRUE;
return FALSE;
}
static gboolean
cl_buffer_get_min_max (cl_mem in_tex,
size_t global_worksize,
const GeglRectangle *roi,
gfloat min[4],
gfloat max[4])
{
cl_int cl_err = 0;
size_t local_ws, max_local_ws;
size_t work_groups;
size_t global_ws;
cl_mem cl_aux_min = NULL;
cl_mem cl_aux_max = NULL;
cl_mem cl_min_max = NULL;
cl_int n_pixels = (cl_int)global_worksize;
cl_float4 min_max_buf[2];
if (global_worksize < 1)
{
min[0] = min[1] = min[2] = min[3] = G_MAXFLOAT;
max[0] = max[1] = max[2] = max[3] = -G_MAXFLOAT;
return FALSE;
}
cl_err = gegl_clGetDeviceInfo (gegl_cl_get_device (),
CL_DEVICE_MAX_WORK_GROUP_SIZE,
sizeof (size_t), &max_local_ws, NULL);
CL_CHECK;
max_local_ws = MIN (max_local_ws,
MIN (cl_data->work_group_size[0],
cl_data->work_group_size[1]));
/* Needs to be a power of two */
local_ws = 256;
while (local_ws > max_local_ws)
local_ws /= 2;
work_groups = MIN ((global_worksize + local_ws - 1) / local_ws, local_ws);
global_ws = work_groups * local_ws;
cl_aux_min = gegl_clCreateBuffer (gegl_cl_get_context (),
CL_MEM_READ_WRITE,
local_ws * sizeof(cl_float4),
NULL, &cl_err);
CL_CHECK;
cl_aux_max = gegl_clCreateBuffer (gegl_cl_get_context (),
CL_MEM_READ_WRITE,
local_ws * sizeof(cl_float4),
NULL, &cl_err);
CL_CHECK;
cl_min_max = gegl_clCreateBuffer (gegl_cl_get_context (),
CL_MEM_WRITE_ONLY,
2 * sizeof(cl_float4),
NULL, &cl_err);
CL_CHECK;
/* The full initialization is done in the two_stages_local_min_max_reduce
kernel */
#if 0
cl_err = gegl_clSetKernelArg(cl_data->kernel[3], 0, sizeof(cl_mem),
(void*)&cl_aux_min);
CL_CHECK;
cl_err = gegl_clSetKernelArg(cl_data->kernel[3], 1, sizeof(cl_mem),
(void*)&cl_aux_max);
CL_CHECK;
cl_err = gegl_clEnqueueNDRangeKernel(gegl_cl_get_command_queue (),
cl_data->kernel[3], 1,
NULL, &local_ws, &local_ws,
0, NULL, NULL);
CL_CHECK;
#endif
cl_err = gegl_clSetKernelArg(cl_data->kernel[0], 0, sizeof(cl_mem),
(void*)&in_tex);
CL_CHECK;
cl_err = gegl_clSetKernelArg(cl_data->kernel[0], 1, sizeof(cl_mem),
(void*)&cl_aux_min);
CL_CHECK;
cl_err = gegl_clSetKernelArg(cl_data->kernel[0], 2, sizeof(cl_mem),
(void*)&cl_aux_max);
CL_CHECK;
cl_err = gegl_clSetKernelArg(cl_data->kernel[0], 3,
sizeof(cl_float4) * local_ws, NULL);
CL_CHECK;
cl_err = gegl_clSetKernelArg(cl_data->kernel[0], 4,
sizeof(cl_float4) * local_ws, NULL);
CL_CHECK;
cl_err = gegl_clSetKernelArg(cl_data->kernel[0], 5, sizeof(cl_int),
(void*)&n_pixels);
CL_CHECK;
cl_err = gegl_clEnqueueNDRangeKernel(gegl_cl_get_command_queue (),
cl_data->kernel[0], 1,
NULL, &global_ws, &local_ws,
0, NULL, NULL);
CL_CHECK;
cl_err = gegl_clSetKernelArg(cl_data->kernel[1], 0, sizeof(cl_mem),
(void*)&cl_aux_min);
CL_CHECK;
cl_err = gegl_clSetKernelArg(cl_data->kernel[1], 1, sizeof(cl_mem),
(void*)&cl_aux_max);
CL_CHECK;
cl_err = gegl_clSetKernelArg(cl_data->kernel[1], 2, sizeof(cl_mem),
(void*)&cl_min_max);
CL_CHECK;
/* Only one work group */
cl_err = gegl_clEnqueueNDRangeKernel (gegl_cl_get_command_queue (),
cl_data->kernel[1], 1,
NULL, &local_ws, &local_ws,
0, NULL, NULL);
CL_CHECK;
/* Read the memory buffer, probably better to keep it in GPU memory */
cl_err = gegl_clEnqueueReadBuffer (gegl_cl_get_command_queue (),
cl_min_max, CL_TRUE, 0,
2 * sizeof (cl_float4), &min_max_buf, 0,
NULL, NULL);
CL_CHECK;
min[0] = min_max_buf[0].x;
min[1] = min_max_buf[0].y;
min[2] = min_max_buf[0].z;
min[3] = min_max_buf[0].w;
max[0] = min_max_buf[1].x;
max[1] = min_max_buf[1].y;
max[2] = min_max_buf[1].z;
max[3] = min_max_buf[1].w;
cl_err = gegl_clReleaseMemObject (cl_aux_min);
CL_CHECK_ONLY (cl_err);
cl_err = gegl_clReleaseMemObject (cl_aux_max);
CL_CHECK_ONLY (cl_err);
cl_err = gegl_clReleaseMemObject (cl_min_max);
CL_CHECK_ONLY (cl_err);
return FALSE;
error:
if (cl_aux_min)
gegl_clReleaseMemObject (cl_aux_min);
if (cl_aux_max)
gegl_clReleaseMemObject (cl_aux_max);
if (cl_min_max)
gegl_clReleaseMemObject (cl_min_max);
return TRUE;
}
static gboolean
cl_process (GeglOperation *self,
cl_mem in_tex,
cl_mem out_tex,
size_t global_worksize,
const GeglRectangle *roi,
gint level)
{
GeglChantO *o = GEGL_CHANT_PROPERTIES (self);
gint num_sampling_points;
gdouble *xs, *ys;
gfloat *ysf = NULL;
cl_mem cl_curve = NULL;
cl_ulong cl_max_constant_size;
cl_int cl_err = 0;
num_sampling_points = o->sampling_points;
if (!cl_data)
{
const char *kernel_name[] = {"cl_contrast_curve",NULL};
cl_data = gegl_cl_compile_and_build (contrast_curve_cl_source,
kernel_name);
}
if (!cl_data)
return TRUE;
if (num_sampling_points > 0)
{
xs = g_new (gdouble, num_sampling_points);
ys = g_new (gdouble, num_sampling_points);
gegl_curve_calc_values (o->curve, 0.0, 1.0, num_sampling_points, xs, ys);
g_free (xs);
/*We need to downscale the array to pass it to the GPU*/
ysf = g_new (gfloat, num_sampling_points);
copy_double_array_to_float_array (ys, ysf, num_sampling_points);
g_free (ys);
cl_err = gegl_clGetDeviceInfo (gegl_cl_get_device (),
CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE,
sizeof (cl_ulong),
&cl_max_constant_size,
NULL);
CL_CHECK;
GEGL_NOTE (GEGL_DEBUG_OPENCL, "Max Constant Mem Size: %lu bytes",
(unsigned long) cl_max_constant_size);
if (sizeof (cl_float) * num_sampling_points < cl_max_constant_size)
{
cl_curve = gegl_clCreateBuffer (gegl_cl_get_context (),
CL_MEM_USE_HOST_PTR | CL_MEM_READ_ONLY,
num_sampling_points * sizeof (cl_float),
ysf, &cl_err);
CL_CHECK;
cl_err = gegl_clSetKernelArg (cl_data->kernel[0], 0, sizeof (cl_mem),
(void*) &in_tex);
CL_CHECK;
cl_err = gegl_clSetKernelArg (cl_data->kernel[0], 1, sizeof (cl_mem),
(void*) &out_tex);
CL_CHECK;
cl_err = gegl_clSetKernelArg (cl_data->kernel[0], 2, sizeof (cl_mem),
(void*) &cl_curve);
CL_CHECK;
cl_err = gegl_clSetKernelArg (cl_data->kernel[0], 3, sizeof (gint),
(void*) &num_sampling_points);
CL_CHECK;
cl_err = gegl_clEnqueueNDRangeKernel (gegl_cl_get_command_queue (),
cl_data->kernel[0], 1,
NULL, &global_worksize, NULL,
0, NULL, NULL);
CL_CHECK;
cl_err = gegl_clFinish (gegl_cl_get_command_queue ());
CL_CHECK;
cl_err = gegl_clReleaseMemObject (cl_curve);
CL_CHECK_ONLY (cl_err);
}
else
{
/*If the curve size doesn't fit constant memory is better to use CPU*/
GEGL_NOTE (GEGL_DEBUG_OPENCL,
"Not enough constant memory for the curve");
g_free (ysf);
return TRUE;
}
g_free (ysf);
return FALSE;
error:
if (ysf)
g_free (ysf);
if (cl_curve)
gegl_clReleaseMemObject (cl_curve);
return TRUE;
}
else /*If the curve doesn't have a lookup table is better to use CPU*/
{
GEGL_NOTE (GEGL_DEBUG_OPENCL,
"Curve not suitable to be computed in the GPU");
return TRUE;
}
}
static gboolean
fir_cl_process (GeglBuffer *input,
GeglBuffer *output,
const GeglRectangle *result,
const Babl *format,
gfloat *cmatrix,
gint clen,
GeglOrientation orientation,
GeglAbyssPolicy abyss)
{
gboolean err = FALSE;
cl_int cl_err;
cl_mem cl_cmatrix = NULL;
GeglBufferClIterator *i;
gint read;
gint left, right, top, bottom;
if (orientation == GEGL_ORIENTATION_HORIZONTAL)
{
right = left = clen / 2;
top = bottom = 0;
}
else
{
right = left = 0;
top = bottom = clen / 2;
}
i = gegl_buffer_cl_iterator_new (output,
result,
format,
GEGL_CL_BUFFER_WRITE);
read = gegl_buffer_cl_iterator_add_2 (i,
input,
result,
format,
GEGL_CL_BUFFER_READ,
left, right,
top, bottom,
abyss);
cl_cmatrix = gegl_clCreateBuffer (gegl_cl_get_context(),
CL_MEM_COPY_HOST_PTR | CL_MEM_READ_ONLY,
clen * sizeof(cl_float), cmatrix, &cl_err);
CL_CHECK;
while (gegl_buffer_cl_iterator_next (i, &err) && !err)
{
err = cl_gaussian_blur(i->tex[read],
i->tex[0],
&i->roi[0],
cl_cmatrix,
clen,
orientation);
if (err)
{
gegl_buffer_cl_iterator_stop (i);
break;
}
}
cl_err = gegl_clReleaseMemObject (cl_cmatrix);
CL_CHECK;
cl_cmatrix = NULL;
return !err;
error:
if (cl_cmatrix)
gegl_clReleaseMemObject (cl_cmatrix);
return FALSE;
}
