181 lines
7.0 KiB
C++
181 lines
7.0 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*/
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/** \file
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* \ingroup editorui
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*/
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#ifndef __BIF_GLUTIL_H__
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#define __BIF_GLUTIL_H__
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struct rcti;
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struct ColorManagedDisplaySettings;
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struct ColorManagedViewSettings;
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struct ImBuf;
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struct bContext;
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typedef struct IMMDrawPixelsTexState {
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struct GPUShader *shader;
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unsigned int pos;
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unsigned int texco;
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bool do_shader_unbind;
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} IMMDrawPixelsTexState;
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/* To be used before calling immDrawPixelsTex
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* Default shader is GPU_SHADER_2D_IMAGE_COLOR
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* Returns a shader to be able to set uniforms */
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IMMDrawPixelsTexState immDrawPixelsTexSetup(int builtin);
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/**
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* immDrawPixelsTex - Functions like a limited glDrawPixels, but actually draws the
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* image using textures, which can be tremendously faster on low-end
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* cards, and also avoids problems with the raster position being
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* clipped when offscreen. Pixel unpacking parameters and
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* the glPixelZoom values are _not_ respected.
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*
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* \attention Use immDrawPixelsTexSetup before calling this function.
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*
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* \attention This routine makes many assumptions: the rect data
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* is expected to be in RGBA byte or float format, and the
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* modelview and projection matrices are assumed to define a
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* 1-to-1 mapping to screen space.
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*/
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void immDrawPixelsTex(IMMDrawPixelsTexState *state,
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float x,
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float y,
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int img_w,
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int img_h,
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int format,
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int type,
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int zoomfilter,
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void *rect,
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float xzoom,
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float yzoom,
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float color[4]);
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void immDrawPixelsTex_clipping(IMMDrawPixelsTexState *state,
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float x,
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float y,
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int img_w,
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int img_h,
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int format,
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int type,
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int zoomfilter,
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void *rect,
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float clip_min_x,
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float clip_min_y,
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float clip_max_x,
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float clip_max_y,
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float xzoom,
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float yzoom,
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float color[4]);
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void immDrawPixelsTexScaled(IMMDrawPixelsTexState *state,
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float x,
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float y,
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int img_w,
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int img_h,
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int format,
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int type,
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int zoomfilter,
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void *rect,
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float scaleX,
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float scaleY,
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float xzoom,
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float yzoom,
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float color[4]);
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void immDrawPixelsTexScaled_clipping(IMMDrawPixelsTexState *state,
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float x,
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float y,
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int img_w,
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int img_h,
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int format,
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int type,
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int zoomfilter,
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void *rect,
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float scaleX,
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float scaleY,
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float clip_min_x,
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float clip_min_y,
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float clip_max_x,
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float clip_max_y,
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float xzoom,
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float yzoom,
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float color[4]);
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/* Image buffer drawing functions, with display transform
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*
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* The view and display settings can either be specified manually,
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* or retrieved from the context with the '_ctx' variations.
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*
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* For better performance clipping coordinates can be specified so parts of the
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* image outside the view are skipped. */
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void ED_draw_imbuf(struct ImBuf *ibuf,
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float x,
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float y,
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int zoomfilter,
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struct ColorManagedViewSettings *view_settings,
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struct ColorManagedDisplaySettings *display_settings,
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float zoom_x,
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float zoom_y);
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void ED_draw_imbuf_clipping(struct ImBuf *ibuf,
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float x,
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float y,
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int zoomfilter,
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struct ColorManagedViewSettings *view_settings,
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struct ColorManagedDisplaySettings *display_settings,
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float clip_min_x,
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float clip_min_y,
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float clip_max_x,
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float clip_max_y,
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float zoom_x,
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float zoom_y);
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void ED_draw_imbuf_ctx(const struct bContext *C,
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struct ImBuf *ibuf,
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float x,
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float y,
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int zoomfilter,
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float zoom_x,
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float zoom_y);
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void ED_draw_imbuf_ctx_clipping(const struct bContext *C,
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struct ImBuf *ibuf,
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float x,
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float y,
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int zoomfilter,
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float clip_min_x,
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float clip_min_y,
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float clip_max_x,
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float clip_max_y,
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float zoom_x,
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float zoom_y);
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int ED_draw_imbuf_method(struct ImBuf *ibuf);
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/* OpenGL drawing utility functions. Do not use these in new code, these
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* are intended to be moved or removed in the future. */
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/* own working polygon offset */
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float bglPolygonOffsetCalc(const float winmat[16], float viewdist, float dist);
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void bglPolygonOffset(float viewdist, float dist);
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void immDrawBorderCorners(unsigned int pos, const struct rcti *border, float zoomx, float zoomy);
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#endif /* __BIF_GLUTIL_H__ */
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