move gl elements to ext subdirectory

1 files changed, 507 insertions, 0 deletions

diff --git a/ext/gl/gltestsrc.c b/ext/gl/gltestsrc.c
new file mode 100644
index 000000000..db280176a
--- /dev/null
+++ b/ext/gl/gltestsrc.c
@@ -0,0 +1,507 @@
+/* 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., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+/* non-GST-specific stuff */
+
+#include "gltestsrc.h"
+
+#include <string.h>
+#include <stdlib.h>
+#include <math.h>
+
+#ifndef M_PI
+#define M_PI  3.14159265358979323846
+#endif
+
+enum
+{
+  COLOR_WHITE = 0,
+  COLOR_YELLOW,
+  COLOR_CYAN,
+  COLOR_GREEN,
+  COLOR_MAGENTA,
+  COLOR_RED,
+  COLOR_BLUE,
+  COLOR_BLACK,
+  COLOR_NEG_I,
+  COLOR_POS_Q,
+  COLOR_SUPER_BLACK,
+  COLOR_DARK_GREY
+};
+
+static const struct vts_color_struct vts_colors[] = {
+  /* 100% white */
+  {255, 128, 128, 255, 255, 255, 255},
+  /* yellow */
+  {226, 0, 155, 255, 255, 0, 255},
+  /* cyan */
+  {179, 170, 0, 0, 255, 255, 255},
+  /* green */
+  {150, 46, 21, 0, 255, 0, 255},
+  /* magenta */
+  {105, 212, 235, 255, 0, 255, 255},
+  /* red */
+  {76, 85, 255, 255, 0, 0, 255},
+  /* blue */
+  {29, 255, 107, 0, 0, 255, 255},
+  /* black */
+  {16, 128, 128, 0, 0, 0, 255},
+  /* -I */
+  {16, 198, 21, 0, 0, 128, 255},
+  /* +Q */
+  {16, 235, 198, 0, 128, 255, 255},
+  /* superblack */
+  {0, 128, 128, 0, 0, 0, 255},
+  /* 5% grey */
+  {32, 128, 128, 32, 32, 32, 255},
+};
+
+static void
+gst_gl_test_src_unicolor (GstGLTestSrc * v, GstBuffer * buffer, int w,
+    int h, const struct vts_color_struct *color);
+
+void
+gst_gl_test_src_smpte (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
+{
+#if GST_GL_HAVE_OPENGL
+  int i;
+
+  if (gst_gl_context_get_gl_api (v->context) & GST_GL_API_OPENGL) {
+
+    glClearColor (0.0, 0.0, 0.0, 1.0);
+    glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+    glDisable (GL_CULL_FACE);
+    glDisable (GL_TEXTURE_2D);
+
+    glMatrixMode (GL_PROJECTION);
+    glLoadIdentity ();
+
+    for (i = 0; i < 7; i++) {
+      glColor4f (vts_colors[i].R * (1 / 255.0f), vts_colors[i].G * (1 / 255.0f),
+          vts_colors[i].B * (1 / 255.0f), 1.0f);
+      glBegin (GL_QUADS);
+      glVertex3f (-1.0f + i * (2.0f / 7.0f), -1.0f + 2.0 * (2.0f / 3.0f), 0);
+      glVertex3f (-1.0f + (i + 1.0f) * (2.0f / 7.0f),
+          -1.0f + 2.0f * (2.0f / 3.0f), 0);
+      glVertex3f (-1.0f + (i + 1.0f) * (2.0f / 7.0f), -1.0f, 0);
+      glVertex3f (-1.0f + i * (2.0f / 7.0f), -1.0f, 0);
+      glEnd ();
+    }
+
+    for (i = 0; i < 7; i++) {
+      int k;
+
+      if (i & 1) {
+        k = 7;
+      } else {
+        k = 6 - i;
+      }
+
+      glColor4f (vts_colors[k].R * (1 / 255.0f), vts_colors[k].G * (1 / 255.0f),
+          vts_colors[k].B * (1 / 255.0f), 1.0f);
+      glBegin (GL_QUADS);
+      glVertex3f (-1.0f + i * (2.0f / 7.0f), -1.0f + 2.0f * (3.0f / 4.0f), 0);
+      glVertex3f (-1.0f + (i + 1) * (2.0f / 7.0f), -1.0f + 2.0f * (3.0f / 4.0f),
+          0);
+      glVertex3f (-1.0f + (i + 1) * (2.0f / 7.0f), -1.0f + 2.0f * (2.0f / 3.0f),
+          0);
+      glVertex3f (-1.0f + i * (2.0f / 7.0f), -1.0f + 2.0f * (2.0f / 3.0f), 0);
+      glEnd ();
+    }
+
+    for (i = 0; i < 3; i++) {
+      int k;
+
+      if (i == 0) {
+        k = 8;
+      } else if (i == 1) {
+        k = 0;
+      } else {
+        k = 9;
+      }
+
+      glColor4f (vts_colors[k].R * (1 / 255.0f), vts_colors[k].G * (1 / 255.0f),
+          vts_colors[k].B * (1 / 255.0f), 1.0f);
+      glBegin (GL_QUADS);
+      glVertex3f (-1.0f + i * (2.0f / 6.0f), -1.0f + 2.0f * 1, 0);
+      glVertex3f (-1.0f + (i + 1) * (2.0f / 6.0f), -1.0f + 2.0f * 1, 0);
+      glVertex3f (-1.0f + (i + 1) * (2.0f / 6.0f), -1.0f + 2.0f * (3.0f / 4.0f),
+          0);
+      glVertex3f (-1.0f + i * (2.0f / 6.0f), -1.0f + 2.0f * (3.0f / 4.0f), 0);
+      glEnd ();
+    }
+
+    for (i = 0; i < 3; i++) {
+      int k;
+
+      if (i == 0) {
+        k = COLOR_SUPER_BLACK;
+      } else if (i == 1) {
+        k = COLOR_BLACK;
+      } else {
+        k = COLOR_DARK_GREY;
+      }
+
+      glColor4f (vts_colors[k].R * (1 / 255.0f), vts_colors[k].G * (1 / 255.0f),
+          vts_colors[k].B * (1 / 255.0f), 1.0f);
+      glBegin (GL_QUADS);
+      glVertex3f (-1.0f + 2.0f * (0.5f + i * (1.0f / 12.0f)), -1.0 + 2.0f * 1,
+          0);
+      glVertex3f (-1.0f + 2.0f * (0.5f + (i + 1) * (1.0f / 12.0f)),
+          -1.0f + 2.0f * 1, 0);
+      glVertex3f (-1.0f + 2.0f * (0.5f + (i + 1) * (1.0f / 12.0f)),
+          -1.0f + 2.0f * (3.0f / 4.0f), 0);
+      glVertex3f (-1.0f + 2.0f * (0.5f + i * (1.0f / 12.0f)),
+          -1.0f + 2.0f * (3.0f / 4.0f), 0);
+      glEnd ();
+    }
+
+    glColor4f (1.0, 1.0, 1.0, 1.0);
+    glBegin (GL_QUADS);
+    glVertex3f (-1.0 + 2.0 * (0.75), -1.0 + 2.0 * 1, 0);
+    glVertex3f (-1.0 + 2.0 * (1.0), -1.0 + 2.0 * 1, 0);
+    glVertex3f (-1.0 + 2.0 * (1.0), -1.0 + 2.0 * (3.0 / 4.0), 0);
+    glVertex3f (-1.0 + 2.0 * (0.75), -1.0 + 2.0 * (3.0 / 4.0), 0);
+    glEnd ();
+  }
+#endif
+}
+
+void
+gst_gl_test_src_snow (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
+{
+#if GST_GL_HAVE_OPENGL
+  if (gst_gl_context_get_gl_api (v->context) & GST_GL_API_OPENGL) {
+    glClearColor (0.0, 0.0, 0.0, 1.0);
+    glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+    glMatrixMode (GL_PROJECTION);
+    glLoadIdentity ();
+
+    glMatrixMode (GL_MODELVIEW);
+    glLoadIdentity ();
+
+    /* FIXME snow requires a fragment shader.  Please write. */
+    glColor4f (0.5, 0.5, 0.5, 1.0);
+    glBegin (GL_QUADS);
+    glVertex3f (-1.0 + 2.0 * (0.0), -1.0 + 2.0 * 1, 0);
+    glVertex3f (-1.0 + 2.0 * (1.0), -1.0 + 2.0 * 1, 0);
+    glVertex3f (-1.0 + 2.0 * (1.0), -1.0 + 2.0 * (0.0), 0);
+    glVertex3f (-1.0 + 2.0 * (0.0), -1.0 + 2.0 * (0.0), 0);
+    glEnd ();
+  }
+#endif
+}
+
+static void
+gst_gl_test_src_unicolor (GstGLTestSrc * v, GstBuffer * buffer, int w,
+    int h, const struct vts_color_struct *color)
+{
+#if GST_GL_HAVE_OPENGL
+  if (gst_gl_context_get_gl_api (v->context) & GST_GL_API_OPENGL) {
+    glClearColor (color->R * (1 / 255.0f), color->G * (1 / 255.0f),
+        color->B * (1 / 255.0f), 1.0f);
+    glClear (GL_COLOR_BUFFER_BIT);
+  }
+#endif
+}
+
+void
+gst_gl_test_src_black (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
+{
+  gst_gl_test_src_unicolor (v, buffer, w, h, vts_colors + COLOR_BLACK);
+}
+
+void
+gst_gl_test_src_white (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
+{
+  gst_gl_test_src_unicolor (v, buffer, w, h, vts_colors + COLOR_WHITE);
+}
+
+void
+gst_gl_test_src_red (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
+{
+  gst_gl_test_src_unicolor (v, buffer, w, h, vts_colors + COLOR_RED);
+}
+
+void
+gst_gl_test_src_green (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
+{
+  gst_gl_test_src_unicolor (v, buffer, w, h, vts_colors + COLOR_GREEN);
+}
+
+void
+gst_gl_test_src_blue (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
+{
+  gst_gl_test_src_unicolor (v, buffer, w, h, vts_colors + COLOR_BLUE);
+}
+
+void
+gst_gl_test_src_checkers1 (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
+{
+#if 0
+  int x, y;
+  paintinfo pi = { NULL, };
+  paintinfo *p = &pi;
+  struct fourcc_list_struct *fourcc;
+
+  p->width = w;
+  p->height = h;
+  fourcc = v->fourcc;
+  if (fourcc == NULL)
+    return;
+
+  fourcc->paint_setup (p, dest);
+  p->paint_hline = fourcc->paint_hline;
+
+  for (y = 0; y < h; y++) {
+    p->color = vts_colors + COLOR_GREEN;
+    p->paint_hline (p, 0, y, w);
+    for (x = (y % 2); x < w; x += 2) {
+      p->color = vts_colors + COLOR_RED;
+      p->paint_hline (p, x, y, 1);
+    }
+  }
+#endif
+}
+
+void
+gst_gl_test_src_checkers2 (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
+{
+#if 0
+  int x, y;
+  paintinfo pi = { NULL, };
+  paintinfo *p = &pi;
+  struct fourcc_list_struct *fourcc;
+
+  p->width = w;
+  p->height = h;
+  fourcc = v->fourcc;
+  if (fourcc == NULL)
+    return;
+
+  fourcc->paint_setup (p, dest);
+  p->paint_hline = fourcc->paint_hline;
+
+  p->color = vts_colors + COLOR_GREEN;
+  for (y = 0; y < h; y++) {
+    p->paint_hline (p, 0, y, w);
+  }
+
+  for (y = 0; y < h; y += 2) {
+    for (x = ((y % 4) == 0) ? 0 : 2; x < w; x += 4) {
+      guint len = (x < (w - 1)) ? 2 : (w - x);
+
+      p->color = vts_colors + COLOR_RED;
+      p->paint_hline (p, x, y + 0, len);
+      if (G_LIKELY ((y + 1) < h)) {
+        p->paint_hline (p, x, y + 1, len);
+      }
+    }
+  }
+#endif
+}
+
+void
+gst_gl_test_src_checkers4 (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
+{
+#if 0
+  int x, y;
+  paintinfo pi = { NULL, };
+  paintinfo *p = &pi;
+  struct fourcc_list_struct *fourcc;
+
+  p->width = w;
+  p->height = h;
+  fourcc = v->fourcc;
+  if (fourcc == NULL)
+    return;
+
+  fourcc->paint_setup (p, dest);
+  p->paint_hline = fourcc->paint_hline;
+
+  p->color = vts_colors + COLOR_GREEN;
+  for (y = 0; y < h; y++) {
+    p->paint_hline (p, 0, y, w);
+  }
+
+  for (y = 0; y < h; y += 4) {
+    for (x = ((y % 8) == 0) ? 0 : 4; x < w; x += 8) {
+      guint len = (x < (w - 3)) ? 4 : (w - x);
+
+      p->color = vts_colors + COLOR_RED;
+      p->paint_hline (p, x, y + 0, len);
+      if (G_LIKELY ((y + 1) < h)) {
+        p->paint_hline (p, x, y + 1, len);
+        if (G_LIKELY ((y + 2) < h)) {
+          p->paint_hline (p, x, y + 2, len);
+          if (G_LIKELY ((y + 3) < h)) {
+            p->paint_hline (p, x, y + 3, len);
+          }
+        }
+      }
+    }
+  }
+#endif
+}
+
+void
+gst_gl_test_src_checkers8 (GstGLTestSrc * v, GstBuffer * buffer, int w, int h)
+{
+#if 0
+  int x, y;
+  paintinfo pi = { NULL, };
+  paintinfo *p = &pi;
+  struct fourcc_list_struct *fourcc;
+
+  p->width = w;
+  p->height = h;
+  fourcc = v->fourcc;
+  if (fourcc == NULL)
+    return;
+
+  fourcc->paint_setup (p, dest);
+  p->paint_hline = fourcc->paint_hline;
+
+  p->color = vts_colors + COLOR_GREEN;
+  for (y = 0; y < h; y++) {
+    p->paint_hline (p, 0, y, w);
+  }
+
+  for (y = 0; y < h; y += 8) {
+    for (x = ((GST_ROUND_UP_8 (y) % 16) == 0) ? 0 : 8; x < w; x += 16) {
+      guint len = (x < (w - 7)) ? 8 : (w - x);
+
+      p->color = vts_colors + COLOR_RED;
+      p->paint_hline (p, x, y + 0, len);
+      if (G_LIKELY ((y + 1) < h)) {
+        p->paint_hline (p, x, y + 1, len);
+        if (G_LIKELY ((y + 2) < h)) {
+          p->paint_hline (p, x, y + 2, len);
+          if (G_LIKELY ((y + 3) < h)) {
+            p->paint_hline (p, x, y + 3, len);
+            if (G_LIKELY ((y + 4) < h)) {
+              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 = &pi;
+  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
+}