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gegl-buffer-cl-iterator.c
593 lines (486 loc) · 22.3 KB
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gegl-buffer-cl-iterator.c
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#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <glib-object.h>
#include <glib/gprintf.h>
#include "gegl.h"
#include "gegl-buffer-types.h"
#include "gegl-buffer-cl-iterator.h"
#include "gegl-buffer-cl-cache.h"
#include "gegl-buffer-private.h"
#include "gegl-tile-storage.h"
#include "gegl-utils.h"
#define CL_ERROR {g_printf("[OpenCL] Error in %s:%d@%s - %s\n", __FILE__, __LINE__, __func__, gegl_cl_errstring(cl_err)); goto error;}
typedef struct GeglBufferClIterators
{
/* current region of interest */
gint n;
size_t size [GEGL_CL_BUFFER_MAX_ITERATORS][GEGL_CL_NTEX]; /* length of current data in pixels */
cl_mem tex [GEGL_CL_BUFFER_MAX_ITERATORS][GEGL_CL_NTEX];
GeglRectangle roi [GEGL_CL_BUFFER_MAX_ITERATORS][GEGL_CL_NTEX];
/* the following is private: */
cl_mem tex_buf [GEGL_CL_BUFFER_MAX_ITERATORS][GEGL_CL_NTEX];
cl_mem tex_op [GEGL_CL_BUFFER_MAX_ITERATORS][GEGL_CL_NTEX];
/* don't free textures loaded from cache */
gboolean tex_buf_from_cache [GEGL_CL_BUFFER_MAX_ITERATORS][GEGL_CL_NTEX];
gint iterators;
gint iteration_no;
gboolean is_finished;
guint flags [GEGL_CL_BUFFER_MAX_ITERATORS];
gint area [GEGL_CL_BUFFER_MAX_ITERATORS][4];
GeglRectangle rect [GEGL_CL_BUFFER_MAX_ITERATORS]; /* the region we iterate on. They can be
different from each other, but width
and height are the same */
const Babl *format [GEGL_CL_BUFFER_MAX_ITERATORS]; /* The format required for the data */
GeglBuffer *buffer [GEGL_CL_BUFFER_MAX_ITERATORS];
/* buffer->format */
size_t buf_cl_format_size [GEGL_CL_BUFFER_MAX_ITERATORS];
/* format */
size_t op_cl_format_size [GEGL_CL_BUFFER_MAX_ITERATORS];
gegl_cl_color_op conv [GEGL_CL_BUFFER_MAX_ITERATORS];
/* total iteration */
gint rois;
gint roi_no;
GeglRectangle *roi_all;
} GeglBufferClIterators;
gint
gegl_buffer_cl_iterator_add_2 (GeglBufferClIterator *iterator,
GeglBuffer *buffer,
const GeglRectangle *result,
const Babl *format,
guint flags,
gint left,
gint right,
gint top,
gint bottom)
{
GeglBufferClIterators *i = (gpointer)iterator;
gint self = 0;
if (i->iterators+1 > GEGL_CL_BUFFER_MAX_ITERATORS)
{
g_error ("too many iterators (%i)", i->iterators+1);
}
if (i->iterators == 0) /* for sanity, we zero at init */
{
memset (i, 0, sizeof (GeglBufferClIterators));
}
self = i->iterators++;
if (!result)
result = self==0?&(buffer->extent):&(i->rect[0]);
i->rect[self]=*result;
i->flags[self]=flags;
if (flags == GEGL_CL_BUFFER_WRITE || flags == GEGL_CL_BUFFER_READ)
{
g_assert (buffer);
i->buffer[self]= g_object_ref (buffer);
if (format)
i->format[self]=format;
else
i->format[self]=buffer->format;
if (flags == GEGL_CL_BUFFER_WRITE)
i->conv[self] = gegl_cl_color_supported (format, buffer->format);
else
i->conv[self] = gegl_cl_color_supported (buffer->format, format);
gegl_cl_color_babl (buffer->format, &i->buf_cl_format_size[self]);
gegl_cl_color_babl (format, &i->op_cl_format_size [self]);
}
else /* GEGL_CL_BUFFER_AUX */
{
g_assert (buffer == NULL);
i->buffer[self] = NULL;
i->format[self] = NULL;
i->conv[self] = -1;
i->buf_cl_format_size[self] = SIZE_MAX;
gegl_cl_color_babl (format, &i->op_cl_format_size [self]);
}
i->area[self][0] = left;
i->area[self][1] = right;
i->area[self][2] = top;
i->area[self][3] = bottom;
if (flags == GEGL_CL_BUFFER_WRITE
&& (left > 0 || right > 0 || top > 0 || bottom > 0))
g_assert(FALSE);
if (self!=0)
{
/* we make all subsequently added iterators share the width and height of the first one */
i->rect[self].width = i->rect[0].width;
i->rect[self].height = i->rect[0].height;
}
else
{
gint x, y, j;
i->rois = 0;
for (y=result->y; y < result->y + result->height; y += cl_state.max_image_height)
for (x=result->x; x < result->x + result->width; x += cl_state.max_image_width)
i->rois++;
i->roi_no = 0;
i->roi_all = g_new0 (GeglRectangle, i->rois);
j = 0;
for (y=0; y < result->height; y += cl_state.max_image_height)
for (x=0; x < result->width; x += cl_state.max_image_width)
{
GeglRectangle r = {x, y,
MIN(cl_state.max_image_width, result->width - x),
MIN(cl_state.max_image_height, result->height - y)};
i->roi_all[j] = r;
j++;
}
}
return self;
}
gint
gegl_buffer_cl_iterator_add (GeglBufferClIterator *iterator,
GeglBuffer *buffer,
const GeglRectangle *result,
const Babl *format,
guint flags)
{
return gegl_buffer_cl_iterator_add_2 (iterator, buffer, result, format, flags, 0,0,0,0);
}
#define OPENCL_USE_CACHE 1
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_invalidate (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]->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], 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[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:
{
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], 1.0, &i->roi[no][j], 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;
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
{
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_get (i->buffer[no], 1.0, &i->roi[no][j], i->buffer[no]->format, 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;
}
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
{
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_get (i->buffer[no], 1.0, &i->roi[no][j], i->buffer[no]->format, 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;
}
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]->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;
}
GeglBufferClIterator *
gegl_buffer_cl_iterator_new (GeglBuffer *buffer,
const GeglRectangle *roi,
const Babl *format,
guint flags)
{
GeglBufferClIterator *i = (gpointer)g_slice_new0 (GeglBufferClIterators);
/* Because the iterator is nulled above, we can forgo explicitly setting
* i->is_finished to FALSE. */
gegl_buffer_cl_iterator_add (i, buffer, roi, format, flags);
return i;
}
#undef CL_ERROR