diff options
author | Taybin Rutkin <taybin@taybin.com> | 2005-09-25 18:42:24 +0000 |
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committer | Taybin Rutkin <taybin@taybin.com> | 2005-09-25 18:42:24 +0000 |
commit | 209d967b1bb80a9735d690d8f4f0455ecb9970ca (patch) | |
tree | 9d76ddcd7c1ac9d91bb2b1a33d31b66ce4ded5de /gtk2_ardour/rgb_macros.h | |
parent | e4b9aed743fc765219ac775905a221c017c88fba (diff) |
Initial import of gtk2_ardour.
git-svn-id: svn://localhost/trunk/ardour2@24 d708f5d6-7413-0410-9779-e7cbd77b26cf
Diffstat (limited to 'gtk2_ardour/rgb_macros.h')
-rw-r--r-- | gtk2_ardour/rgb_macros.h | 288 |
1 files changed, 288 insertions, 0 deletions
diff --git a/gtk2_ardour/rgb_macros.h b/gtk2_ardour/rgb_macros.h new file mode 100644 index 0000000000..f0a67ec0bd --- /dev/null +++ b/gtk2_ardour/rgb_macros.h @@ -0,0 +1,288 @@ +/* + Copyright (C) 2000 EMC Capital Management, Inc. + + Developed by Jon Trowbridge <trow@gnu.org> and + Havoc Pennington <hp@pobox.com>. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + + $Id$ +*/ + +#ifndef __gtk_ardour_rgb_macros_h__ +#define __gtk_ardour_rgb_macros_h__ + +/* + Some convenient macros for drawing into an RGB buffer. + Beware of side effects, code-bloat, and all of the other classic + cpp-perils... +*/ + +#define RGB_TO_UINT(r,g,b) ((((guint)(r))<<16)|(((guint)(g))<<8)|((guint)(b))) +#define RGB_TO_RGBA(x,a) (((x) << 8) | ((((guint)a) & 0xff))) +#define RGBA_TO_UINT(r,g,b,a) RGB_TO_RGBA(RGB_TO_UINT(r,g,b), a) +#define RGB_WHITE RGB_TO_UINT(0xff, 0xff, 0xff) +#define RGB_BLACK RGB_TO_UINT(0x00, 0x00, 0x00) +#define RGB_RED RGB_TO_UINT(0xff, 0x00, 0x00) +#define RGB_GREEN RGB_TO_UINT(0x00, 0xff, 0x00) +#define RGB_BLUE RGB_TO_UINT(0x00, 0x00, 0xff) +#define RGB_YELLOW RGB_TO_UINT(0xff, 0xff, 0x00) +#define RGB_VIOLET RGB_TO_UINT(0xff, 0x00, 0xff) +#define RGB_CYAN RGB_TO_UINT(0x00, 0xff, 0xff) +#define RGBA_WHITE RGB_TO_RGBA(RGB_WHITE, 0xff) +#define RGBA_BLACK RGB_TO_RGBA(RGB_BLACK, 0xff) +#define RGBA_RED RGB_TO_RGBA(RGB_RED, 0xff) +#define RGBA_GREEN RGB_TO_RGBA(RGB_GREEN, 0xff) +#define RGBA_BLUE RGB_TO_RGBA(RGB_BLUE, 0xff) +#define RGBA_YELLOW RGB_TO_RGBA(RGB_YELLOW, 0xff) +#define RGBA_VIOLET RGB_TO_RGBA(RGB_VIOLET, 0xff) +#define RGBA_CYAN RGB_TO_RGBA(RGB_CYAN, 0xff) +#define RGB_GREY(x) RGB_TO_UINT(x,x,x) +#define RGBA_GREY(x) RGB_TO_RGBA(RGB_GREY(x), 0xff) +#define UINT_RGBA_R(x) (((guint)(x))>>24) +#define UINT_RGBA_G(x) ((((guint)(x))>>16)&0xff) +#define UINT_RGBA_B(x) ((((guint)(x))>>8)&0xff) +#define UINT_RGBA_A(x) (((guint)(x))&0xff) +#define UINT_RGBA_CHANGE_R(x, r) (((x)&(~(0xff<<24)))|(((r)&0xff)<<24)) +#define UINT_RGBA_CHANGE_G(x, g) (((x)&(~(0xff<<16)))|(((g)&0xff)<<16)) +#define UINT_RGBA_CHANGE_B(x, b) (((x)&(~(0xff<<8)))|(((b)&0xff)<<8)) +#define UINT_RGBA_CHANGE_A(x, a) (((x)&(~0xff))|((a)&0xff)) +#define UINT_TO_RGB(u,r,g,b) \ +{ (*(r)) = ((u)>>16)&0xff; (*(g)) = ((u)>>8)&0xff; (*(b)) = (u)&0xff; } +#define UINT_TO_RGBA(u,r,g,b,a) \ +{ UINT_TO_RGB(((u)>>8),r,g,b); (*(a)) = (u)&0xff; } +#define MONO_INTERPOLATE(v1, v2, t) ((gint)rint((v2)*(t)+(v1)*(1-(t)))) +#define UINT_INTERPOLATE(c1, c2, t) \ + RGBA_TO_UINT( MONO_INTERPOLATE(UINT_RGBA_R(c1), UINT_RGBA_R(c2), t), \ + MONO_INTERPOLATE(UINT_RGBA_G(c1), UINT_RGBA_G(c2), t), \ + MONO_INTERPOLATE(UINT_RGBA_B(c1), UINT_RGBA_B(c2), t), \ + MONO_INTERPOLATE(UINT_RGBA_A(c1), UINT_RGBA_A(c2), t) ) +#define PIXEL_RGB(p, r, g, b) \ +{((guchar*)(p))[0]=(r); ((guchar*)(p))[1]=(g); ((guchar*)(p))[2]=(b);} +#define PIXEL_RGBA(p, r, g, b, a) \ +{ if ((a)>=0xff) { PIXEL_RGB(p,r,g,b) } \ + else if ((a)>0) { \ + guint pixel_tmp; \ + pixel_tmp = ((guchar*)(p))[0]; \ + ((guchar*)(p))[0] = pixel_tmp + ((((r)-pixel_tmp)*(a)+0x80) >> 8); \ + pixel_tmp = ((guchar*)(p))[1]; \ + ((guchar*)(p))[1] = pixel_tmp + ((((g)-pixel_tmp)*(a)+0x80) >> 8); \ + pixel_tmp = ((guchar*)(p))[2]; \ + ((guchar*)(p))[2] = pixel_tmp + ((((b)-pixel_tmp)*(a)+0x80) >> 8); }} +#define PIXEL_RGB_UINT(p, i) \ +UINT_TO_RGB((i), ((guchar*)p), ((guchar*)p)+1, ((guchar*)p)+2) +#define PIXEL_RGBA_UINT(p, i) \ + PIXEL_RGBA((p), ((i)>>24)&0xff, ((i)>>16)&0xff, ((i)>>8)&0xff, (i)&0xff) +#define PIXEL_BLACK(p) PIXEL_RGB(p,0,0,0) +#define PIXEL_WHITE(p) PIXEL_RGB(p,0xff,0xff,0xff) +#define PIXEL_GREY(p,g) PIXEL_RGB(p,g,g,g) +#define PIXEL_GREYA(p,g,a) PIXEL_RGBA(p,g,g,g,a) +#define BUF_PTR(inbuf, ptx, pty) \ + ((inbuf)->buf + 3*((ptx)-(inbuf)->rect.x0) + (inbuf)->buf_rowstride*((pty)-(inbuf)->rect.y0)) +#define BUF_INBOUNDS_X(inbuf, ptx) \ +((inbuf)->rect.x0 <= (ptx) && (ptx) < (inbuf)->rect.x1) +#define BUF_INBOUNDS_Y(inbuf, pty) \ +((inbuf)->rect.y0 <= (pty) && (pty) < (inbuf)->rect.y1) +#define PAINT_DOT(inbuf, colr, colg, colb,ptx, pty) \ +{ \ + guchar* pd_p; \ + if (BUF_INBOUNDS_X(inbuf, ptx) && BUF_INBOUNDS_Y(inbuf, pty)) { \ + pd_p = BUF_PTR(inbuf, ptx, pty); \ + PIXEL_RGB(pd_p, (colr), (colg), (colb)); \ + } \ +} +#define FAST_PAINT_DOT(inbuf, colr, colg, colb,ptx, pty) \ +{ \ + guchar* pd_p; \ + pd_p = BUF_PTR(inbuf, ptx, pty); \ + PIXEL_RGB(pd_p, (colr), (colg), (colb)); \ +} +#define PAINT_DOTA(inbuf, colr, colg, colb, cola, ptx, pty) \ +{ \ + guchar* pd_p; \ + if (BUF_INBOUNDS_X(inbuf, ptx) && BUF_INBOUNDS_Y(inbuf, pty)) { \ + pd_p = BUF_PTR(inbuf, ptx, pty); \ + PIXEL_RGBA(pd_p, (colr), (colg), (colb), (cola)); \ + } \ +} +#define FAST_PAINT_DOTA(inbuf, colr, colg, colb, cola, ptx, pty) \ +{ \ + guchar* pd_p; \ + pd_p = BUF_PTR(inbuf, ptx, pty); \ + PIXEL_RGBA(pd_p, (colr), (colg), (colb), (cola)); \ +} +#define PAINT_HORIZ(inbuf, colr, colg, colb, ptx0, ptx1, pty) \ +{ \ + GtkCanvasBuf* ph_buf = (inbuf); \ + guchar* ph_p; \ + gint ph_a0, ph_a1; \ + gint ph_colr=(colr), ph_colg=(colg), ph_colb=(colb); \ +\ + ph_a0 = MAX(ph_buf->rect.x0, (ptx0)); \ + ph_a1 = MIN(ph_buf->rect.x1, (ptx1)); \ +\ + if (ph_a0 < ph_a1 && BUF_INBOUNDS_Y(ph_buf, pty)) { \ + ph_p = BUF_PTR(ph_buf, ph_a0, pty); \ + while (ph_a0 < ph_a1) { \ + PIXEL_RGB(ph_p, ph_colr, ph_colg, ph_colb); \ + ++ph_a0; \ + ph_p += 3; \ + } \ + } \ +} +#define FAST_PAINT_HORIZ(inbuf, colr, colg, colb, ptx0, ptx1, pty) \ +{ \ + GtkCanvasBuf* ph_buf = (inbuf); \ + guchar* ph_p; \ + gint ph_a0, ph_a1; \ + gint ph_colr=(colr), ph_colg=(colg), ph_colb=(colb); \ +\ + ph_a0 = MAX(ph_buf->rect.x0, (ptx0)); \ + ph_a1 = MIN(ph_buf->rect.x1, (ptx1)); \ +\ + if (ph_a0 < ph_a1 && BUF_INBOUNDS_Y(ph_buf, pty)) { \ + ph_p = BUF_PTR(ph_buf, ph_a0, pty); \ + while (ph_a0 < ph_a1) { \ + PIXEL_RGB(ph_p, ph_colr, ph_colg, ph_colb); \ + ++ph_a0; \ + ph_p += 3; \ + } \ + } \ +} +#define PAINT_HORIZA(inbuf, colr, colg, colb, cola, ptx0, ptx1, pty) \ +{ \ + GtkCanvasBuf* ph_buf = (inbuf); \ + guchar* ph_p; \ + gint ph_a0, ph_a1; \ + gint ph_colr=(colr), ph_colg=(colg), ph_colb=(colb), ph_cola=(cola); \ +\ + ph_a0 = MAX(ph_buf->rect.x0, (ptx0)); \ + ph_a1 = MIN(ph_buf->rect.x1, (ptx1)); \ +\ + if (ph_a0 < ph_a1 && BUF_INBOUNDS_Y(ph_buf, pty)) { \ + ph_p = BUF_PTR(ph_buf, ph_a0, pty); \ + while (ph_a0 < ph_a1) { \ + PIXEL_RGBA(ph_p, ph_colr, ph_colg, ph_colb, ph_cola); \ + ++ph_a0; \ + ph_p += 3; \ + } \ + } \ +} +#define PAINT_VERT(inbuf, colr, colg, colb, ptx, pty0, pty1) \ +{ \ + GtkCanvasBuf* pv_buf = (inbuf); \ + guchar* pv_p; \ + gint pv_b0, pv_b1; \ + gint pv_colr=(colr), pv_colg=(colg), pv_colb=(colb);\ +\ + pv_b0 = MAX(pv_buf->rect.y0, (pty0)); \ + pv_b1 = MIN(pv_buf->rect.y1, (pty1)); \ +\ + if (pv_b0 < pv_b1 && BUF_INBOUNDS_X(pv_buf, ptx)) { \ + pv_p = BUF_PTR(pv_buf, ptx, pv_b0); \ + while (pv_b0 < pv_b1) { \ + PIXEL_RGB(pv_p, pv_colr, pv_colg, pv_colb); \ + ++pv_b0; \ + pv_p += pv_buf->buf_rowstride; \ + } \ + } \ +} +#define FAST_PAINT_VERT(inbuf, colr, colg, colb, ptx, pty0, pty1) \ +{ \ + GtkCanvasBuf* fpv_buf = (inbuf); \ + guchar* fpv_p; \ + gint fpv_b0, fpv_b1; \ +\ + fpv_b0 = MAX(fpv_buf->rect.y0, (pty0)); \ + fpv_b1 = MIN(fpv_buf->rect.y1, (pty1)); \ +\ + fpv_p = BUF_PTR(fpv_buf, ptx, fpv_b0); \ +\ + while (fpv_b0 < fpv_b1) { \ + PIXEL_RGB(fpv_p, colr, colg, colb); \ + ++fpv_b0; \ + fpv_p += fpv_buf->buf_rowstride; \ + } \ +} +#define PAINT_VERTA(inbuf, colr, colg, colb, cola, ptx, pty0, pty1) \ +{ \ + GtkCanvasBuf* pv_buf = (inbuf); \ + guchar* pv_p; \ + gint pv_b0, pv_b1; \ + gint pv_colr=(colr), pv_colg=(colg), pv_colb=(colb), pv_cola=(cola);\ +\ + pv_b0 = MAX(pv_buf->rect.y0, (pty0)); \ + pv_b1 = MIN(pv_buf->rect.y1, (pty1)); \ +\ + if (pv_b0 < pv_b1 && BUF_INBOUNDS_X(pv_buf, ptx)) { \ + pv_p = BUF_PTR(pv_buf, ptx, pv_b0); \ + while (pv_b0 < pv_b1) { \ + PIXEL_RGBA(pv_p, pv_colr, pv_colg, pv_colb, pv_cola); \ + ++pv_b0; \ + pv_p += pv_buf->buf_rowstride; \ + } \ + } \ +} + +/* Paint a solid-colored box into a GtkCanvasBuf (clipping as necessary). + The box contains (ptx0,pty0), but not (ptx1, pty1). + Each macro arg should appear exactly once in the body of the code. */ +#define PAINT_BOX(inbuf, colr, colg, colb, cola, ptx0, pty0, ptx1, pty1) \ +{ \ + GtkCanvasBuf* pb_buf = (inbuf); \ + guchar* pb_p; \ + guchar* pb_pp; \ + gint pb_a0, pb_a1, pb_b0, pb_b1, pb_i, pb_j; \ + gint pb_colr=(colr), pb_colg=(colg), pb_colb=(colb), pb_cola=(cola); \ +\ + pb_a0 = MAX(pb_buf->rect.x0, (ptx0)); \ + pb_a1 = MIN(pb_buf->rect.x1, (ptx1)); \ + pb_b0 = MAX(pb_buf->rect.y0, (pty0)); \ + pb_b1 = MIN(pb_buf->rect.y1, (pty1)); \ +\ + if (pb_a0 < pb_a1 && pb_b0 < pb_b1) { \ + pb_p = BUF_PTR(pb_buf, pb_a0, pb_b0); \ + for (pb_j=pb_b0; pb_j<pb_b1; ++pb_j) { \ + pb_pp = pb_p; \ + for (pb_i=pb_a0; pb_i<pb_a1; ++pb_i) { \ + PIXEL_RGBA(pb_pp, pb_colr, pb_colg, pb_colb, pb_cola); \ + pb_pp += 3; \ + } \ + pb_p += pb_buf->buf_rowstride; \ + } \ + } \ +} + +/* No bounds checking in this version */ + +#define FAST_PAINT_BOX(inbuf, colr, colg, colb, cola, ptx0, pty0, ptx1, pty1) \ +{ \ + GtkCanvasBuf* pb_buf = (inbuf); \ + guchar* pb_p; \ + guchar* pb_pp; \ + gint pb_i, pb_j; \ +\ + pb_p = BUF_PTR(pb_buf, ptx0, pty0); \ + for (pb_j=pty0; pb_j<pty1; ++pb_j) { \ + pb_pp = pb_p; \ + for (pb_i=ptx0; pb_i<ptx1; ++pb_i) { \ + PIXEL_RGBA(pb_pp, colr, colg, colb, cola); \ + pb_pp += 3; \ + } \ + pb_p += pb_buf->buf_rowstride; \ + } \ +} + +#endif /* __gtk_ardour_rgb_macros_h__ */ |