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-rw-r--r--gst/smpte/paint.c332
1 files changed, 0 insertions, 332 deletions
diff --git a/gst/smpte/paint.c b/gst/smpte/paint.c
deleted file mode 100644
index f4f64829..00000000
--- a/gst/smpte/paint.c
+++ /dev/null
@@ -1,332 +0,0 @@
-/* GStreamer
- * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <math.h>
-#include <stdlib.h>
-#include "paint.h"
-
-void
-gst_smpte_paint_vbox (guint32 * dest, gint stride,
- gint x0, gint y0, gint c0, gint x1, gint y1, gint c1)
-{
- gint i, j;
- gint width, height;
-
- width = x1 - x0;
- height = y1 - y0;
-
- g_assert (width > 0);
- g_assert (height > 0);
-
- dest = dest + y0 * stride + x0;
-
- for (i = 0; i < height; i++) {
- for (j = 0; j < width; j++) {
- dest[j] = (c1 * j + c0 * (width - j)) / width;
- }
- dest += stride;
- }
-}
-
-void
-gst_smpte_paint_hbox (guint32 * dest, gint stride,
- gint x0, gint y0, gint c0, gint x1, gint y1, gint c1)
-{
- gint i, j;
- gint width, height;
-
- width = x1 - x0;
- height = y1 - y0;
-
- g_assert (width > 0);
- g_assert (height > 0);
-
- g_print ("vbox: %d %d %d %d %d %d\n", x0, y0, c0, x1, y1, c1);
-
- dest = dest + y0 * stride + x0;
-
- for (i = 0; i < height; i++) {
- guint32 value = (c1 * i + c0 * (height - i)) / height;
-
- for (j = 0; j < width; j++) {
- dest[j] = value;
- }
- dest += stride;
- }
-}
-
-#define STEP_3D_LINE(dxabs,dyabs,dzabs,sdx,sdy,sdz,xr,yr,zr,px,py,pz) \
-G_STMT_START { \
- if (dxabs >= dyabs && dxabs >= dzabs) { \
- yr += dyabs; \
- zr += dzabs; \
- if (yr >= dxabs) { \
- py += sdy; \
- yr -= dxabs; \
- } \
- if (zr >= dzabs) { \
- pz += sdz; \
- zr -= dxabs; \
- } \
- px += sdx; \
- } else if (dyabs >= dxabs && dyabs >= dzabs) { \
- xr += dxabs; \
- zr += dzabs; \
- if (xr >= dyabs) { \
- px += sdx; \
- xr -= dyabs; \
- } \
- if (zr >= dzabs) { \
- pz += sdz; \
- zr -= dyabs; \
- } \
- py += sdy; \
- } else { \
- yr += dyabs; \
- xr += dxabs; \
- if (yr >= dyabs) { \
- py += sdy; \
- yr -= dzabs; \
- } \
- if (xr >= dyabs) { \
- px += sdx; \
- xr -= dzabs; \
- } \
- pz += sdz; \
- } \
-} G_STMT_END
-
-#define SWAP_INT(a,b) \
-G_STMT_START { \
- gint tmp; \
- tmp = (a); \
- (a) = (b); \
- (b) = (tmp); \
-} G_STMT_END
-
-#define SIGN(a) ((a) < 0 ? -1 : 1)
-
-#define PREPARE_3D_LINE(x0,y0,z0,x1,y1,z1,dxabs,dyabs,dzabs,sdx,sdy,sdz,xr,yr,zr,px,py,pz)\
-G_STMT_START { \
- gint dx, dy, dz; \
- dx = x1 - x0; \
- dy = y1 - y0; \
- dz = z1 - z0; \
- dxabs = abs (dx); \
- dyabs = abs (dy); \
- dzabs = abs (dz); \
- sdx = SIGN (dx); \
- sdy = SIGN (dy); \
- sdz = SIGN (dz); \
- xr = dxabs >> 1; \
- yr = dyabs >> 1; \
- zr = dzabs >> 1; \
- px = x0; \
- py = y0; \
- pz = z0; \
-} G_STMT_END
-
-void
-gst_smpte_paint_triangle_linear (guint32 * dest, gint stride,
- gint x0, gint y0, gint c0,
- gint x1, gint y1, gint c1, gint x2, gint y2, gint c2)
-{
- gint sdxl, sdyl, sdcl, dxlabs, dylabs, dclabs, xrl, yrl, crl, pxl, pyl, pcl;
- gint sdxr, sdyr, sdcr, dxrabs, dyrabs, dcrabs, xrr, yrr, crr, pxr, pyr, pcr;
- gint i, j, k, seg_start, seg_end;
-
- if (y0 > y1) {
- SWAP_INT (x0, x1);
- SWAP_INT (y0, y1);
- SWAP_INT (c0, c1);
- }
- if (y0 > y2) {
- SWAP_INT (x0, x2);
- SWAP_INT (y0, y2);
- SWAP_INT (c0, c2);
- }
- if (y1 > y2) {
- SWAP_INT (x1, x2);
- SWAP_INT (y1, y2);
- SWAP_INT (c1, c2);
- }
-
- PREPARE_3D_LINE (x0, y0, c0, x2, y2, c2,
- dxlabs, dylabs, dclabs, sdxl, sdyl, sdcl, xrl, yrl, crl, pxl, pyl, pcl);
-
- PREPARE_3D_LINE (x0, y0, c0, x1, y1, c1,
- dxrabs, dyrabs, dcrabs, sdxr, sdyr, sdcr, xrr, yrr, crr, pxr, pyr, pcr);
-
- dest = dest + stride * y0;
- seg_start = y0;
- seg_end = y1;
-
- /* do two passes */
- for (k = 0; k < 2; k++) {
- for (i = seg_start; i < seg_end; i++) {
- gint s = pxl, e = pxr, sc = pcl, ec = pcr;
- gint sign = SIGN (e - s);
-
- e += sign;
- for (j = s; j != e; j += sign) {
- dest[j] = (ec * (j - s) + sc * (e - j)) / (e - s);
- }
-
- while (pyr == i) {
- STEP_3D_LINE (dxrabs, dyrabs, dcrabs, sdxr, sdyr, sdcr,
- xrr, yrr, crr, pxr, pyr, pcr);
- }
- while (pyl == i) {
- STEP_3D_LINE (dxlabs, dylabs, dclabs, sdxl, sdyl, sdcl,
- xrl, yrl, crl, pxl, pyl, pcl);
- }
- dest += stride;
- }
-
- PREPARE_3D_LINE (x1, y1, c1, x2, y2, c2,
- dxrabs, dyrabs, dcrabs, sdxr, sdyr, sdcr, xrr, yrr, crr, pxr, pyr, pcr);
-
- seg_start = y1;
- seg_end = y2;
- }
-}
-
-static void
-draw_bresenham_line (guint32 * dest, gint stride,
- gint x0, gint y0, gint x1, gint y1, guint32 col)
-{
- gint dx = abs (x1 - x0);
- gint dy = abs (y1 - y0);
- gint x_incr, y_incr;
- gint i, dpr, dpru, P, indep;
-
- dest = dest + y0 * stride + x0;
-
- x_incr = SIGN (x1 - x0);
- y_incr = SIGN (y1 - y0) * stride;
-
- if (dx >= dy) {
- dpr = dy << 1;
- i = dx;
- indep = x_incr;
- } else {
- dpr = dx << 1;
- i = dy;
- indep = y_incr;
- }
-
- dpru = dpr - (i << 1);
- P = dpr - i;
-
- for (; i >= 0; i--) {
- *dest = col;
-
- if (P > 0) {
- dest += x_incr;
- dest += y_incr;
- P += dpru;
- } else {
- dest += indep;
- P += dpr;
- }
- }
-}
-
-void
-gst_smpte_paint_triangle_clock (guint32 * dest, gint stride,
- gint x0, gint y0, gint c0,
- gint x1, gint y1, gint c1, gint x2, gint y2, gint c2)
-{
- gint i;
- gint sign;
- gfloat angle, angle_s, angle_e;
- gfloat len1;
-
- angle_s = 0.0;
- angle_e = acos (((x1 - x0) * (x2 - x0) + (y1 - y0) * (y2 - y0)) /
- (sqrt ((x1 - x0) * (x1 - x0) + (y1 - y0) * (y1 - y0)) *
- sqrt ((x2 - x0) * (x2 - x0) + (y2 - y0) * (y2 - y0))));
-
- len1 = sqrt ((x1 - x0) * (x1 - x0) + (y1 - y0) * (y1 - y0));
-
- if (x1 == x2) {
- sign = SIGN (y2 - y1);
-
- for (i = y1; i != (y2 + sign); i += sign) {
- if (y1 == i)
- angle = 0;
- else
- angle = acos (((x1 - x0) * (x2 - x0) + (y1 - y0) * (i - y0)) /
- (len1 * sqrt ((x1 - x0) * (x1 - x0) + (i - y0) * (i -
- y0)))) / angle_e;
-
- draw_bresenham_line (dest, stride,
- x0, y0, x1, i, (c2 * angle + c1 * (1.0 - angle)));
- }
- } else if (y1 == y2) {
- sign = SIGN (x2 - x1);
-
- for (i = x1; i != (x2 + sign); i += sign) {
- if (x1 == i)
- angle = 0;
- else
- angle = acos (((x1 - x0) * (i - x0) + (y1 - y0) * (y2 - y0)) /
- (len1 * sqrt ((i - x0) * (i - x0) + (y2 - y0) * (y2 -
- y0)))) / angle_e;
-
- draw_bresenham_line (dest, stride,
- x0, y0, i, y1, (c2 * angle + c1 * (1.0 - angle)));
- }
- }
-}
-
-void
-gst_smpte_paint_box_clock (guint32 * dest, gint stride,
- gint x0, gint y0, gint c0,
- gint x1, gint y1, gint c1, gint x2, gint y2, gint c2)
-{
- gfloat angle_m, col_m;
- gint xv, yv;
-
- if (x1 == x0) {
- xv = x2;
- yv = y1;
- } else if (y1 == y0) {
- xv = x1;
- yv = y2;
- } else {
- g_warning ("paint box clock: not supported");
- return;
- }
-
- angle_m = 2 * acos (((x1 - x0) * (xv - x0) + (y1 - y0) * (yv - y0)) /
- (sqrt ((x1 - x0) * (x1 - x0) + (y1 - y0) * (y1 - y0)) *
- sqrt ((xv - x0) * (xv - x0) + (yv - y0) * (yv - y0)))) / M_PI;
-
- col_m = c2 * angle_m + c1 * (1.0 - angle_m);
-
- gst_smpte_paint_triangle_clock (dest, stride,
- x0, y0, c0, x1, y1, c1, xv, yv, col_m);
- gst_smpte_paint_triangle_clock (dest, stride,
- x0, y0, c0, xv, yv, col_m, x2, y2, c2);
-}
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