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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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556 lines
14 KiB
C
556 lines
14 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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/* non-GST-specific stuff */
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#include "gltestsrc.h"
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#include <string.h>
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#include <stdlib.h>
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#include <math.h>
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#ifndef M_PI
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#define M_PI 3.14159265358979323846
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#endif
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enum
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{
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COLOR_WHITE = 0,
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COLOR_YELLOW,
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COLOR_CYAN,
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COLOR_GREEN,
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COLOR_MAGENTA,
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COLOR_RED,
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COLOR_BLUE,
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COLOR_BLACK,
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COLOR_NEG_I,
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COLOR_POS_Q,
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COLOR_SUPER_BLACK,
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COLOR_DARK_GREY
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};
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static const struct vts_color_struct vts_colors[] = {
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/* 100% white */
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{255, 128, 128, 255, 255, 255, 255},
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/* yellow */
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{226, 0, 155, 255, 255, 0, 255},
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/* cyan */
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{179, 170, 0, 0, 255, 255, 255},
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/* green */
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{150, 46, 21, 0, 255, 0, 255},
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/* magenta */
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{105, 212, 235, 255, 0, 255, 255},
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/* red */
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{76, 85, 255, 255, 0, 0, 255},
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/* blue */
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{29, 255, 107, 0, 0, 255, 255},
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/* black */
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{16, 128, 128, 0, 0, 0, 255},
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/* -I */
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{16, 198, 21, 0, 0, 128, 255},
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/* +Q */
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{16, 235, 198, 0, 128, 255, 255},
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/* superblack */
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{0, 128, 128, 0, 0, 0, 255},
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/* 5% grey */
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{32, 128, 128, 32, 32, 32, 255},
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};
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static void
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gst_gl_test_src_unicolor (GstGLTestSrc * v, GstBuffer * buffer, int w,
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int h, const struct vts_color_struct *color);
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void
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gst_gl_test_src_smpte (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
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{
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#if GST_GL_HAVE_OPENGL
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int i;
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if (gst_gl_context_get_gl_api (v->context) & GST_GL_API_OPENGL) {
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glClearColor (0.0, 0.0, 0.0, 1.0);
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glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glDisable (GL_CULL_FACE);
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glDisable (GL_TEXTURE_2D);
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glMatrixMode (GL_PROJECTION);
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glLoadIdentity ();
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for (i = 0; i < 7; i++) {
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glColor4f (vts_colors[i].R * (1 / 255.0f), vts_colors[i].G * (1 / 255.0f),
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vts_colors[i].B * (1 / 255.0f), 1.0f);
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glBegin (GL_QUADS);
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glVertex3f (-1.0f + i * (2.0f / 7.0f), -1.0f + 2.0 * (2.0f / 3.0f), 0);
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glVertex3f (-1.0f + (i + 1.0f) * (2.0f / 7.0f),
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-1.0f + 2.0f * (2.0f / 3.0f), 0);
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glVertex3f (-1.0f + (i + 1.0f) * (2.0f / 7.0f), -1.0f, 0);
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glVertex3f (-1.0f + i * (2.0f / 7.0f), -1.0f, 0);
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glEnd ();
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}
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for (i = 0; i < 7; i++) {
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int k;
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if (i & 1) {
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k = 7;
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} else {
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k = 6 - i;
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}
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glColor4f (vts_colors[k].R * (1 / 255.0f), vts_colors[k].G * (1 / 255.0f),
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vts_colors[k].B * (1 / 255.0f), 1.0f);
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glBegin (GL_QUADS);
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glVertex3f (-1.0f + i * (2.0f / 7.0f), -1.0f + 2.0f * (3.0f / 4.0f), 0);
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glVertex3f (-1.0f + (i + 1) * (2.0f / 7.0f), -1.0f + 2.0f * (3.0f / 4.0f),
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0);
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glVertex3f (-1.0f + (i + 1) * (2.0f / 7.0f), -1.0f + 2.0f * (2.0f / 3.0f),
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0);
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glVertex3f (-1.0f + i * (2.0f / 7.0f), -1.0f + 2.0f * (2.0f / 3.0f), 0);
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glEnd ();
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}
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for (i = 0; i < 3; i++) {
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int k;
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if (i == 0) {
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k = 8;
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} else if (i == 1) {
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k = 0;
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} else {
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k = 9;
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}
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glColor4f (vts_colors[k].R * (1 / 255.0f), vts_colors[k].G * (1 / 255.0f),
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vts_colors[k].B * (1 / 255.0f), 1.0f);
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glBegin (GL_QUADS);
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glVertex3f (-1.0f + i * (2.0f / 6.0f), -1.0f + 2.0f * 1, 0);
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glVertex3f (-1.0f + (i + 1) * (2.0f / 6.0f), -1.0f + 2.0f * 1, 0);
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glVertex3f (-1.0f + (i + 1) * (2.0f / 6.0f), -1.0f + 2.0f * (3.0f / 4.0f),
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0);
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glVertex3f (-1.0f + i * (2.0f / 6.0f), -1.0f + 2.0f * (3.0f / 4.0f), 0);
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glEnd ();
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}
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for (i = 0; i < 3; i++) {
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int k;
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if (i == 0) {
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k = COLOR_SUPER_BLACK;
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} else if (i == 1) {
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k = COLOR_BLACK;
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} else {
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k = COLOR_DARK_GREY;
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}
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glColor4f (vts_colors[k].R * (1 / 255.0f), vts_colors[k].G * (1 / 255.0f),
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vts_colors[k].B * (1 / 255.0f), 1.0f);
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glBegin (GL_QUADS);
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glVertex3f (-1.0f + 2.0f * (0.5f + i * (1.0f / 12.0f)), -1.0 + 2.0f * 1,
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0);
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glVertex3f (-1.0f + 2.0f * (0.5f + (i + 1) * (1.0f / 12.0f)),
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-1.0f + 2.0f * 1, 0);
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glVertex3f (-1.0f + 2.0f * (0.5f + (i + 1) * (1.0f / 12.0f)),
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-1.0f + 2.0f * (3.0f / 4.0f), 0);
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glVertex3f (-1.0f + 2.0f * (0.5f + i * (1.0f / 12.0f)),
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-1.0f + 2.0f * (3.0f / 4.0f), 0);
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glEnd ();
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}
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glColor4f (1.0, 1.0, 1.0, 1.0);
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glBegin (GL_QUADS);
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glVertex3f (-1.0 + 2.0 * (0.75), -1.0 + 2.0 * 1, 0);
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glVertex3f (-1.0 + 2.0 * (1.0), -1.0 + 2.0 * 1, 0);
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glVertex3f (-1.0 + 2.0 * (1.0), -1.0 + 2.0 * (3.0 / 4.0), 0);
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glVertex3f (-1.0 + 2.0 * (0.75), -1.0 + 2.0 * (3.0 / 4.0), 0);
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glEnd ();
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}
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#endif
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}
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void
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gst_gl_test_src_shader (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
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{
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GstGLFuncs *gl = v->context->gl_vtable;
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/* *INDENT-OFF* */
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const GLfloat positions[] = {
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-1.0, 1.0, 0.0, 1.0,
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1.0, 1.0, 0.0, 1.0,
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1.0, -1.0, 0.0, 1.0,
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-1.0, -1.0, 0.0, 1.0,
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};
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const GLfloat identitiy_matrix[] = {
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1.0, 0.0, 0.0, 0.0,
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0.0, 1.0, 0.0, 0.0,
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0.0, 0.0, 1.0, 0.0,
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0.0, 0.0, 0.0, 1.0,
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};
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const GLfloat uvs[] = {
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0.0, 1.0,
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1.0, 1.0,
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1.0, 0.0,
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0.0, 0.0,
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};
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/* *INDENT-ON* */
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GLushort indices[] = { 0, 1, 2, 3, 0 };
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GLint attr_position_loc = 0;
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GLint attr_uv_loc = 0;
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if (gst_gl_context_get_gl_api (v->context)) {
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gst_gl_context_clear_shader (v->context);
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gl->BindTexture (GL_TEXTURE_2D, 0);
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gl->Disable (GL_TEXTURE_2D);
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gst_gl_shader_use (v->shader);
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attr_position_loc =
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gst_gl_shader_get_attribute_location (v->shader, "position");
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attr_uv_loc = gst_gl_shader_get_attribute_location (v->shader, "uv");
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/* Load the vertex position */
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gl->VertexAttribPointer (attr_position_loc, 4, GL_FLOAT,
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GL_FALSE, 0, positions);
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/* Load the texture coordinate */
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gl->VertexAttribPointer (attr_uv_loc, 2, GL_FLOAT, GL_FALSE, 0, uvs);
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gl->EnableVertexAttribArray (attr_position_loc);
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gl->EnableVertexAttribArray (attr_uv_loc);
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gst_gl_shader_set_uniform_matrix_4fv (v->shader, "mvp",
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1, GL_FALSE, identitiy_matrix);
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gst_gl_shader_set_uniform_1f (v->shader, "time",
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(gfloat) v->running_time / GST_SECOND);
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gst_gl_shader_set_uniform_1f (v->shader, "aspect_ratio",
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(gfloat) w / (gfloat) h);
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gl->DrawElements (GL_TRIANGLE_STRIP, 5, GL_UNSIGNED_SHORT, indices);
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gl->DisableVertexAttribArray (attr_position_loc);
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gl->DisableVertexAttribArray (attr_uv_loc);
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gst_gl_context_clear_shader (v->context);
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}
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}
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static void
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gst_gl_test_src_unicolor (GstGLTestSrc * v, GstBuffer * buffer, int w,
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int h, const struct vts_color_struct *color)
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{
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#if GST_GL_HAVE_OPENGL
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if (gst_gl_context_get_gl_api (v->context) & GST_GL_API_OPENGL) {
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glClearColor (color->R * (1 / 255.0f), color->G * (1 / 255.0f),
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color->B * (1 / 255.0f), 1.0f);
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glClear (GL_COLOR_BUFFER_BIT);
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}
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#endif
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}
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void
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gst_gl_test_src_black (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
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{
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gst_gl_test_src_unicolor (v, buffer, w, h, vts_colors + COLOR_BLACK);
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}
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void
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gst_gl_test_src_white (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
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{
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gst_gl_test_src_unicolor (v, buffer, w, h, vts_colors + COLOR_WHITE);
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}
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void
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gst_gl_test_src_red (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
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{
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gst_gl_test_src_unicolor (v, buffer, w, h, vts_colors + COLOR_RED);
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}
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void
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gst_gl_test_src_green (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
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{
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gst_gl_test_src_unicolor (v, buffer, w, h, vts_colors + COLOR_GREEN);
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}
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void
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gst_gl_test_src_blue (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
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{
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gst_gl_test_src_unicolor (v, buffer, w, h, vts_colors + COLOR_BLUE);
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}
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void
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gst_gl_test_src_checkers1 (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
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{
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#if 0
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int x, y;
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paintinfo pi = { NULL, };
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paintinfo *p = π
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struct fourcc_list_struct *fourcc;
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p->width = w;
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p->height = h;
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fourcc = v->fourcc;
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if (fourcc == NULL)
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return;
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fourcc->paint_setup (p, dest);
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p->paint_hline = fourcc->paint_hline;
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for (y = 0; y < h; y++) {
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p->color = vts_colors + COLOR_GREEN;
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p->paint_hline (p, 0, y, w);
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for (x = (y % 2); x < w; x += 2) {
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p->color = vts_colors + COLOR_RED;
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p->paint_hline (p, x, y, 1);
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}
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}
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#endif
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}
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void
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gst_gl_test_src_checkers2 (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
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{
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#if 0
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int x, y;
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paintinfo pi = { NULL, };
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paintinfo *p = π
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struct fourcc_list_struct *fourcc;
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p->width = w;
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p->height = h;
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fourcc = v->fourcc;
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if (fourcc == NULL)
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return;
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fourcc->paint_setup (p, dest);
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p->paint_hline = fourcc->paint_hline;
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p->color = vts_colors + COLOR_GREEN;
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for (y = 0; y < h; y++) {
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p->paint_hline (p, 0, y, w);
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}
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for (y = 0; y < h; y += 2) {
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for (x = ((y % 4) == 0) ? 0 : 2; x < w; x += 4) {
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guint len = (x < (w - 1)) ? 2 : (w - x);
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p->color = vts_colors + COLOR_RED;
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p->paint_hline (p, x, y + 0, len);
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if (G_LIKELY ((y + 1) < h)) {
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p->paint_hline (p, x, y + 1, len);
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}
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}
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}
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#endif
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}
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void
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gst_gl_test_src_checkers4 (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
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{
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#if 0
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int x, y;
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paintinfo pi = { NULL, };
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paintinfo *p = π
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struct fourcc_list_struct *fourcc;
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p->width = w;
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p->height = h;
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fourcc = v->fourcc;
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if (fourcc == NULL)
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return;
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fourcc->paint_setup (p, dest);
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p->paint_hline = fourcc->paint_hline;
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p->color = vts_colors + COLOR_GREEN;
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for (y = 0; y < h; y++) {
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p->paint_hline (p, 0, y, w);
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}
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for (y = 0; y < h; y += 4) {
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for (x = ((y % 8) == 0) ? 0 : 4; x < w; x += 8) {
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guint len = (x < (w - 3)) ? 4 : (w - x);
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p->color = vts_colors + COLOR_RED;
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p->paint_hline (p, x, y + 0, len);
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if (G_LIKELY ((y + 1) < h)) {
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p->paint_hline (p, x, y + 1, len);
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if (G_LIKELY ((y + 2) < h)) {
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p->paint_hline (p, x, y + 2, len);
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if (G_LIKELY ((y + 3) < h)) {
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p->paint_hline (p, x, y + 3, len);
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}
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}
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}
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}
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}
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#endif
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}
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void
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gst_gl_test_src_checkers8 (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
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{
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#if 0
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int x, y;
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paintinfo pi = { NULL, };
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paintinfo *p = π
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struct fourcc_list_struct *fourcc;
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p->width = w;
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p->height = h;
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fourcc = v->fourcc;
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if (fourcc == NULL)
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return;
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fourcc->paint_setup (p, dest);
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p->paint_hline = fourcc->paint_hline;
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p->color = vts_colors + COLOR_GREEN;
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for (y = 0; y < h; y++) {
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p->paint_hline (p, 0, y, w);
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}
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for (y = 0; y < h; y += 8) {
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for (x = ((GST_ROUND_UP_8 (y) % 16) == 0) ? 0 : 8; x < w; x += 16) {
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guint len = (x < (w - 7)) ? 8 : (w - x);
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p->color = vts_colors + COLOR_RED;
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p->paint_hline (p, x, y + 0, len);
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if (G_LIKELY ((y + 1) < h)) {
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p->paint_hline (p, x, y + 1, len);
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if (G_LIKELY ((y + 2) < h)) {
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p->paint_hline (p, x, y + 2, len);
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if (G_LIKELY ((y + 3) < h)) {
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p->paint_hline (p, x, y + 3, len);
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if (G_LIKELY ((y + 4) < h)) {
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p->paint_hline (p, x, y + 4, len);
|
|
if (G_LIKELY ((y + 5) < h)) {
|
|
p->paint_hline (p, x, y + 5, len);
|
|
if (G_LIKELY ((y + 6) < h)) {
|
|
p->paint_hline (p, x, y + 6, len);
|
|
if (G_LIKELY ((y + 7) < h)) {
|
|
p->paint_hline (p, x, y + 7, len);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void
|
|
gst_gl_test_src_circular (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
|
|
{
|
|
#if 0
|
|
int i;
|
|
int j;
|
|
paintinfo pi = { NULL, };
|
|
paintinfo *p = π
|
|
struct fourcc_list_struct *fourcc;
|
|
struct vts_color_struct color;
|
|
static uint8_t sine_array[256];
|
|
static int sine_array_inited = FALSE;
|
|
double freq[8];
|
|
|
|
#ifdef SCALE_AMPLITUDE
|
|
double ampl[8];
|
|
#endif
|
|
int d;
|
|
|
|
if (!sine_array_inited) {
|
|
for (i = 0; i < 256; i++) {
|
|
sine_array[i] =
|
|
floor (255 * (0.5 + 0.5 * sin (i * 2 * M_PI / 256)) + 0.5);
|
|
}
|
|
sine_array_inited = TRUE;
|
|
}
|
|
|
|
p->width = w;
|
|
p->height = h;
|
|
fourcc = v->fourcc;
|
|
if (fourcc == NULL)
|
|
return;
|
|
|
|
fourcc->paint_setup (p, dest);
|
|
p->paint_hline = fourcc->paint_hline;
|
|
|
|
color = vts_colors[COLOR_BLACK];
|
|
p->color = &color;
|
|
|
|
for (i = 1; i < 8; i++) {
|
|
freq[i] = 200 * pow (2.0, -(i - 1) / 4.0);
|
|
#ifdef SCALE_AMPLITUDE
|
|
{
|
|
double x;
|
|
|
|
x = 2 * M_PI * freq[i] / w;
|
|
ampl[i] = sin (x) / x;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
for (i = 0; i < w; i++) {
|
|
for (j = 0; j < h; j++) {
|
|
double dist;
|
|
int seg;
|
|
|
|
dist =
|
|
sqrt ((2 * i - w) * (2 * i - w) + (2 * j - h) * (2 * j -
|
|
h)) / (2 * w);
|
|
seg = floor (dist * 16);
|
|
if (seg == 0 || seg >= 8) {
|
|
color.Y = 255;
|
|
} else {
|
|
#ifdef SCALE_AMPLITUDE
|
|
double a;
|
|
#endif
|
|
d = floor (256 * dist * freq[seg] + 0.5);
|
|
#ifdef SCALE_AMPLITUDE
|
|
a = ampl[seg];
|
|
if (a < 0)
|
|
a = 0;
|
|
color.Y = 128 + a * (sine_array[d & 0xff] - 128);
|
|
#else
|
|
color.Y = sine_array[d & 0xff];
|
|
#endif
|
|
}
|
|
color.R = color.Y;
|
|
color.G = color.Y;
|
|
color.B = color.Y;
|
|
p->paint_hline (p, i, j, 1);
|
|
}
|
|
}
|
|
#endif
|
|
}
|