Commit: e127f5a4f2c23ff3d20ec096359f31559dd157e3
Author: varunsundar08
Date: Tue Apr 7 18:13:32 2015 +0530
Branches: cycles_kernel_split
https://developer.blender.org/rBe127f5a4f2c23ff3d20ec096359f31559dd157e3
Add utility function to split big-tile into small-tiles
===================================================================
M intern/cycles/device/device_opencl.cpp
===================================================================
diff --git a/intern/cycles/device/device_opencl.cpp
b/intern/cycles/device/device_opencl.cpp
index d7c0d17..6051782 100644
--- a/intern/cycles/device/device_opencl.cpp
+++ b/intern/cycles/device/device_opencl.cpp
@@ -3668,6 +3668,46 @@ One possible tile size is %zux%zu \n", tile_max_x -
local_size[0] , tile_max_y -
return floor_render_feasible_tile_size;
}
+ /* Splits existing tile into multiple tiles of tile size
render_feasible_tile_size */
+ vector<RenderTile> split_tiles(RenderTile rtile, int2
render_feasible_tile_size) {
+ vector<RenderTile> to_path_trace_rtile;
+
+ int d_w = rtile.w;
+ int d_h = rtile.h;
+ int num_tiles_x = (((d_w - 1) / render_feasible_tile_size.x) +
1);
+ int num_tiles_y = (((d_h - 1) / render_feasible_tile_size.y) +
1);
+
+ /* Resize to_path_trace_rtile */
+ to_path_trace_rtile.resize(num_tiles_x * num_tiles_y);
+
+ for (int tile_iter_y = 0; tile_iter_y < num_tiles_y;
tile_iter_y++) {
+ for (int tile_iter_x = 0; tile_iter_x < num_tiles_x;
tile_iter_x++) {
+ int rtile_index = tile_iter_y * num_tiles_x +
tile_iter_x;
+
+ to_path_trace_rtile[rtile_index].start_sample =
rtile.start_sample;
+ to_path_trace_rtile[rtile_index].num_samples =
rtile.num_samples;
+ to_path_trace_rtile[rtile_index].sample =
rtile.sample;
+ to_path_trace_rtile[rtile_index].resolution =
rtile.resolution;
+ to_path_trace_rtile[rtile_index].offset =
rtile.offset;
+ to_path_trace_rtile[rtile_index].stride =
rtile.stride;
+ to_path_trace_rtile[rtile_index].tile_size =
rtile.tile_size;
+ to_path_trace_rtile[rtile_index].buffers =
rtile.buffers;
+ to_path_trace_rtile[rtile_index].buffer =
rtile.buffer;
+ to_path_trace_rtile[rtile_index].rng_state =
rtile.rng_state;
+ to_path_trace_rtile[rtile_index].x = rtile.x +
(tile_iter_x * render_feasible_tile_size.x);
+ to_path_trace_rtile[rtile_index].y = rtile.y +
(tile_iter_y * render_feasible_tile_size.y);
+
+ /* Fill width and height of the new render tile
*/
+ to_path_trace_rtile[rtile_index].w =
(tile_iter_x == num_tiles_x - 1) ?
+ (d_w - (tile_iter_x *
render_feasible_tile_size.x)) /* Border tile */
+ : render_feasible_tile_size.x;
+ to_path_trace_rtile[rtile_index].h =
(tile_iter_y == num_tiles_y - 1) ?
+ (d_h - (tile_iter_y *
render_feasible_tile_size.y)) /* Border tile */
+ : render_feasible_tile_size.y;
+ }
+ }
+ }
+
void thread_run(DeviceTask *task)
{
if(task->type == DeviceTask::FILM_CONVERT) {
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