c1bc70b711
A lot of files were missing copyright field in the header and
the Blender Foundation contributed to them in a sense of bug
fixing and general maintenance.
This change makes it explicit that those files are at least
partially copyrighted by the Blender Foundation.
Note that this does not make it so the Blender Foundation is
the only holder of the copyright in those files, and developers
who do not have a signed contract with the foundation still
hold the copyright as well.
Another aspect of this change is using SPDX format for the
header. We already used it for the license specification,
and now we state it for the copyright as well, following the
FAQ:
https://reuse.software/faq/
126 lines
3.1 KiB
C
126 lines
3.1 KiB
C
/* SPDX-FileCopyrightText: 2001-2002 NaN Holding BV. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
|
|
/** \file
|
|
* \ingroup wm
|
|
*
|
|
* OpenGL utilities for setting up 2D viewport for window and regions.
|
|
*/
|
|
|
|
#include "BLI_math.h"
|
|
#include "BLI_rect.h"
|
|
|
|
#include "DNA_screen_types.h"
|
|
#include "DNA_windowmanager_types.h"
|
|
|
|
#include "GPU_matrix.h"
|
|
#include "GPU_viewport.h"
|
|
|
|
#include "WM_api.h"
|
|
|
|
void wmViewport(const rcti *winrct)
|
|
{
|
|
int width = BLI_rcti_size_x(winrct) + 1;
|
|
int height = BLI_rcti_size_y(winrct) + 1;
|
|
|
|
GPU_viewport(winrct->xmin, winrct->ymin, width, height);
|
|
GPU_scissor(winrct->xmin, winrct->ymin, width, height);
|
|
|
|
wmOrtho2_pixelspace(width, height);
|
|
GPU_matrix_identity_set();
|
|
}
|
|
|
|
void wmPartialViewport(rcti *drawrct, const rcti *winrct, const rcti *partialrct)
|
|
{
|
|
/* Setup part of the viewport for partial redraw. */
|
|
bool scissor_pad;
|
|
|
|
if (partialrct->xmin == partialrct->xmax) {
|
|
/* Full region. */
|
|
*drawrct = *winrct;
|
|
scissor_pad = true;
|
|
}
|
|
else {
|
|
/* Partial redraw, clipped to region. */
|
|
BLI_rcti_isect(winrct, partialrct, drawrct);
|
|
scissor_pad = false;
|
|
}
|
|
|
|
int x = drawrct->xmin - winrct->xmin;
|
|
int y = drawrct->ymin - winrct->ymin;
|
|
int width = BLI_rcti_size_x(winrct) + 1;
|
|
int height = BLI_rcti_size_y(winrct) + 1;
|
|
|
|
int scissor_width = BLI_rcti_size_x(drawrct);
|
|
int scissor_height = BLI_rcti_size_y(drawrct);
|
|
|
|
/* Partial redraw rect uses different convention than region rect,
|
|
* so compensate for that here. One pixel offset is noticeable with
|
|
* viewport border render. */
|
|
if (scissor_pad) {
|
|
scissor_width += 1;
|
|
scissor_height += 1;
|
|
}
|
|
|
|
GPU_viewport(0, 0, width, height);
|
|
GPU_scissor(x, y, scissor_width, scissor_height);
|
|
|
|
wmOrtho2_pixelspace(width, height);
|
|
GPU_matrix_identity_set();
|
|
}
|
|
|
|
void wmWindowViewport(wmWindow *win)
|
|
{
|
|
int width = WM_window_pixels_x(win);
|
|
int height = WM_window_pixels_y(win);
|
|
|
|
GPU_viewport(0, 0, width, height);
|
|
GPU_scissor(0, 0, width, height);
|
|
|
|
wmOrtho2_pixelspace(width, height);
|
|
GPU_matrix_identity_set();
|
|
}
|
|
|
|
void wmOrtho2(float x1, float x2, float y1, float y2)
|
|
{
|
|
/* prevent opengl from generating errors */
|
|
if (x2 == x1) {
|
|
x2 += 1.0f;
|
|
}
|
|
if (y2 == y1) {
|
|
y2 += 1.0f;
|
|
}
|
|
|
|
GPU_matrix_ortho_set(
|
|
x1, x2, y1, y2, GPU_MATRIX_ORTHO_CLIP_NEAR_DEFAULT, GPU_MATRIX_ORTHO_CLIP_FAR_DEFAULT);
|
|
}
|
|
|
|
static void wmOrtho2_offset(const float x, const float y, const float ofs)
|
|
{
|
|
wmOrtho2(ofs, x + ofs, ofs, y + ofs);
|
|
}
|
|
|
|
void wmOrtho2_region_pixelspace(const ARegion *region)
|
|
{
|
|
wmOrtho2_offset(region->winx, region->winy, -0.01f);
|
|
}
|
|
|
|
void wmOrtho2_pixelspace(const float x, const float y)
|
|
{
|
|
wmOrtho2_offset(x, y, -GLA_PIXEL_OFS);
|
|
}
|
|
|
|
void wmGetProjectionMatrix(float mat[4][4], const rcti *winrct)
|
|
{
|
|
int width = BLI_rcti_size_x(winrct) + 1;
|
|
int height = BLI_rcti_size_y(winrct) + 1;
|
|
orthographic_m4(mat,
|
|
-GLA_PIXEL_OFS,
|
|
(float)width - GLA_PIXEL_OFS,
|
|
-GLA_PIXEL_OFS,
|
|
(float)height - GLA_PIXEL_OFS,
|
|
GPU_MATRIX_ORTHO_CLIP_NEAR_DEFAULT,
|
|
GPU_MATRIX_ORTHO_CLIP_FAR_DEFAULT);
|
|
}
|