e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
93 lines
2.3 KiB
C++
93 lines
2.3 KiB
C++
/* SPDX-FileCopyrightText: 2017 Blender Authors. All rights reserved.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup gpu
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*
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* Glue to make the new Select-Next engine work with the old GPU select API.
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*/
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#include <cfloat>
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#include "BLI_rect.h"
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#include "BLI_span.hh"
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#include "GPU_select.h"
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#include "gpu_select_private.h"
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struct GPUSelectNextState {
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/** Result buffer set on initialization. */
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GPUSelectResult *buffer;
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uint buffer_len;
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/** Area of the viewport to render / select from. */
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rcti rect;
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/** Number of hits. Set to -1 if it overflows buffer_len. */
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uint hits;
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/** Mode of operation. */
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eGPUSelectMode mode;
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};
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static GPUSelectNextState g_state = {};
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void gpu_select_next_begin(GPUSelectResult *buffer,
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uint buffer_len,
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const rcti *input,
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eGPUSelectMode mode)
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{
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g_state.buffer = buffer;
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g_state.rect = *input;
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g_state.buffer_len = buffer_len;
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g_state.mode = mode;
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}
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int gpu_select_next_get_pick_area_center()
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{
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BLI_assert(BLI_rcti_size_x(&g_state.rect) == BLI_rcti_size_y(&g_state.rect));
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return BLI_rcti_size_x(&g_state.rect) / 2;
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}
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eGPUSelectMode gpu_select_next_get_mode()
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{
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return g_state.mode;
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}
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void gpu_select_next_set_result(GPUSelectResult *hit_buf, uint hit_len)
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{
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if (hit_len > g_state.buffer_len) {
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g_state.hits = -1;
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return;
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}
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blender::MutableSpan<GPUSelectResult> result(g_state.buffer, g_state.buffer_len);
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blender::Span<GPUSelectResult> hits(hit_buf, hit_len);
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/* TODO(fclem): There might be some conversion to do to align to the other APIs output. */
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switch (g_state.mode) {
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case eGPUSelectMode::GPU_SELECT_ALL:
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result.take_front(hit_len).copy_from(hits);
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break;
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case eGPUSelectMode::GPU_SELECT_NEAREST_FIRST_PASS:
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result.take_front(hit_len).copy_from(hits);
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break;
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case eGPUSelectMode::GPU_SELECT_NEAREST_SECOND_PASS:
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result.take_front(hit_len).copy_from(hits);
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break;
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case eGPUSelectMode::GPU_SELECT_PICK_ALL:
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result.take_front(hit_len).copy_from(hits);
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break;
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case eGPUSelectMode::GPU_SELECT_PICK_NEAREST:
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result.take_front(hit_len).copy_from(hits);
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break;
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}
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g_state.hits = hit_len;
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}
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uint gpu_select_next_end()
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{
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return g_state.hits;
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}
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