summaryrefslogtreecommitdiffstats
path: root/sys/glsink/gstgldisplay.c
diff options
context:
space:
mode:
Diffstat (limited to 'sys/glsink/gstgldisplay.c')
-rw-r--r--sys/glsink/gstgldisplay.c870
1 files changed, 870 insertions, 0 deletions
diff --git a/sys/glsink/gstgldisplay.c b/sys/glsink/gstgldisplay.c
new file mode 100644
index 00000000..7b1c39b2
--- /dev/null
+++ b/sys/glsink/gstgldisplay.c
@@ -0,0 +1,870 @@
+/* gstgldisplay.c
+ * Copyright (C) 2007 David A. Schleef <ds@schleef.org>
+ *
+ * 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 "gstgldisplay.h"
+#include "glextensions.h"
+#include <gst/gst.h>
+
+#include <string.h>
+
+static void gst_gl_display_finalize (GObject * object);
+static void gst_gl_display_init_tmp_window (GstGLDisplay * display);
+
+GST_BOILERPLATE (GstGLDisplay, gst_gl_display, GObject, G_TYPE_OBJECT);
+
+static void
+gst_gl_display_base_init (gpointer g_class)
+{
+
+}
+
+static void
+gst_gl_display_class_init (GstGLDisplayClass * klass)
+{
+ G_OBJECT_CLASS (klass)->finalize = gst_gl_display_finalize;
+}
+
+static void
+gst_gl_display_init (GstGLDisplay * display, GstGLDisplayClass * klass)
+{
+
+ display->lock = g_mutex_new ();
+
+}
+
+static void
+gst_gl_display_finalize (GObject * object)
+{
+ GstGLDisplay *display = GST_GL_DISPLAY (object);
+
+ if (display->assigned_window == None) {
+ XDestroyWindow (display->display, display->window);
+ }
+ if (display->context) {
+ glXDestroyContext (display->display, display->context);
+ }
+ if (display->visinfo) {
+ XFree (display->visinfo);
+ }
+ if (display->display) {
+ XCloseDisplay (display->display);
+ }
+
+ if (display->lock) {
+ g_mutex_free (display->lock);
+ }
+}
+
+static gboolean gst_gl_display_check_features (GstGLDisplay * display);
+
+GstGLDisplay *
+gst_gl_display_new (void)
+{
+ return g_object_new (GST_TYPE_GL_DISPLAY, NULL);
+}
+
+#define HANDLE_X_ERRORS
+#ifdef HANDLE_X_ERRORS
+static int
+x_error_handler (Display * display, XErrorEvent * event)
+{
+ g_assert_not_reached ();
+}
+#endif
+
+gboolean
+gst_gl_display_connect (GstGLDisplay * display, const char *display_name)
+{
+ gboolean usable;
+ XGCValues values;
+ XPixmapFormatValues *px_formats;
+ int n_formats;
+ int i;
+
+ display->display = XOpenDisplay (display_name);
+ if (display->display == NULL) {
+ return FALSE;
+ }
+#ifdef HANDLE_X_ERRORS
+ XSynchronize (display->display, True);
+ XSetErrorHandler (x_error_handler);
+#endif
+
+ usable = gst_gl_display_check_features (display);
+ if (!usable) {
+ return FALSE;
+ }
+
+ display->screen = DefaultScreenOfDisplay (display->display);
+ display->screen_num = DefaultScreen (display->display);
+ display->visual = DefaultVisual (display->display, display->screen_num);
+ display->root = DefaultRootWindow (display->display);
+ display->white = XWhitePixel (display->display, display->screen_num);
+ display->black = XBlackPixel (display->display, display->screen_num);
+ display->depth = DefaultDepthOfScreen (display->screen);
+
+ display->gc = XCreateGC (display->display,
+ DefaultRootWindow (display->display), 0, &values);
+
+ px_formats = XListPixmapFormats (display->display, &n_formats);
+ for (i = 0; i < n_formats; i++) {
+ GST_DEBUG ("%d: depth %d bpp %d pad %d", i,
+ px_formats[i].depth,
+ px_formats[i].bits_per_pixel, px_formats[i].scanline_pad);
+ }
+
+ gst_gl_display_init_tmp_window (display);
+
+ return TRUE;
+}
+
+static gboolean
+gst_gl_display_check_features (GstGLDisplay * display)
+{
+ gboolean ret;
+ XVisualInfo *visinfo;
+ Screen *screen;
+ Window root;
+ int scrnum;
+ int attrib[] = { GLX_RGBA, GLX_DOUBLEBUFFER, GLX_RED_SIZE, 8,
+ GLX_GREEN_SIZE, 8, GLX_BLUE_SIZE, 8, None
+ };
+ XSetWindowAttributes attr;
+ int error_base;
+ int event_base;
+ int mask;
+ const char *extstring;
+ Window window;
+
+ screen = XDefaultScreenOfDisplay (display->display);
+ scrnum = XScreenNumberOfScreen (screen);
+ root = XRootWindow (display->display, scrnum);
+
+ ret = glXQueryExtension (display->display, &error_base, &event_base);
+ if (!ret) {
+ GST_DEBUG ("No GLX extension");
+ return FALSE;
+ }
+
+ visinfo = glXChooseVisual (display->display, scrnum, attrib);
+ if (visinfo == NULL) {
+ GST_DEBUG ("No usable visual");
+ return FALSE;
+ }
+
+ display->visinfo = visinfo;
+
+ display->context = glXCreateContext (display->display, visinfo, NULL, True);
+
+ attr.background_pixel = 0;
+ attr.border_pixel = 0;
+ attr.colormap = XCreateColormap (display->display, root,
+ visinfo->visual, AllocNone);
+ attr.event_mask = StructureNotifyMask | ExposureMask;
+ attr.override_redirect = True;
+
+ mask = CWBackPixel | CWBorderPixel | CWColormap | CWOverrideRedirect;
+
+ window = XCreateWindow (display->display, root, 0, 0,
+ 100, 100, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
+
+ XSync (display->display, FALSE);
+
+ glXMakeCurrent (display->display, window, display->context);
+
+ glGetIntegerv (GL_MAX_TEXTURE_SIZE, &display->max_texture_size);
+
+ extstring = (const char *) glGetString (GL_EXTENSIONS);
+
+ display->have_ycbcr_texture = FALSE;
+#ifdef GL_YCBCR_MESA
+ if (strstr (extstring, "GL_MESA_ycbcr_texture")) {
+ display->have_ycbcr_texture = TRUE;
+ }
+#endif
+
+ display->have_color_matrix = FALSE;
+#ifdef GL_POST_COLOR_MATRIX_RED_BIAS
+ if (strstr (extstring, "GL_SGI_color_matrix")) {
+ display->have_color_matrix = TRUE;
+ }
+#endif
+
+ display->have_texture_rectangle = FALSE;
+#ifdef GL_TEXTURE_RECTANGLE_ARB
+ if (strstr (extstring, "GL_ARB_texture_rectangle")) {
+ display->have_texture_rectangle = TRUE;
+ }
+#endif
+
+ glXMakeCurrent (display->display, None, NULL);
+ XDestroyWindow (display->display, window);
+
+ return TRUE;
+}
+
+gboolean
+gst_gl_display_can_handle_type (GstGLDisplay * display, GstVideoFormat type)
+{
+ switch (type) {
+ case GST_VIDEO_FORMAT_RGBx:
+ case GST_VIDEO_FORMAT_BGRx:
+ case GST_VIDEO_FORMAT_xRGB:
+ case GST_VIDEO_FORMAT_xBGR:
+ return TRUE;
+ case GST_VIDEO_FORMAT_YUY2:
+ case GST_VIDEO_FORMAT_UYVY:
+ return display->have_ycbcr_texture;
+ case GST_VIDEO_FORMAT_AYUV:
+ return display->have_color_matrix;
+ default:
+ return FALSE;
+ }
+}
+
+void
+gst_gl_display_lock (GstGLDisplay * display)
+{
+ g_mutex_lock (display->lock);
+ glXMakeCurrent (display->display, display->window, display->context);
+ gst_gl_display_check_error (display, __LINE__);
+}
+
+void
+gst_gl_display_unlock (GstGLDisplay * display)
+{
+ gst_gl_display_check_error (display, __LINE__);
+ glXMakeCurrent (display->display, None, NULL);
+ g_mutex_unlock (display->lock);
+}
+
+static void
+gst_gl_display_init_tmp_window (GstGLDisplay * display)
+{
+ XSetWindowAttributes attr = { 0 };
+ int scrnum;
+ int mask;
+ Window root;
+ Screen *screen;
+
+ GST_ERROR ("creating temp window");
+
+ screen = XDefaultScreenOfDisplay (display->display);
+ scrnum = XScreenNumberOfScreen (screen);
+ root = XRootWindow (display->display, scrnum);
+
+ attr.background_pixel = 0;
+ attr.border_pixel = 0;
+ attr.colormap = XCreateColormap (display->display, root,
+ display->visinfo->visual, AllocNone);
+ attr.override_redirect = False;
+#if 0
+ if (display->parent_window) {
+ attr.override_redirect = True;
+ }
+#endif
+
+ mask = CWBackPixel | CWBorderPixel | CWColormap | CWOverrideRedirect;
+
+ display->window = XCreateWindow (display->display,
+ root, 0, 0, 100, 100,
+ 0, display->visinfo->depth, InputOutput,
+ display->visinfo->visual, mask, &attr);
+ XMapWindow (display->display, display->window);
+ XSync (display->display, FALSE);
+}
+
+static void
+gst_gl_display_destroy_tmp_window (GstGLDisplay * display)
+{
+ XDestroyWindow (display->display, display->window);
+}
+
+void
+gst_gl_display_set_window (GstGLDisplay * display, Window window)
+{
+ g_mutex_lock (display->lock);
+
+ if (window != display->assigned_window) {
+ if (display->assigned_window == None) {
+ gst_gl_display_destroy_tmp_window (display);
+ }
+ display->assigned_window = window;
+ if (display->assigned_window == None) {
+ gst_gl_display_init_tmp_window (display);
+ } else {
+ display->window = window;
+ }
+ }
+
+ g_mutex_unlock (display->lock);
+}
+
+void
+gst_gl_display_update_attributes (GstGLDisplay * display)
+{
+ XWindowAttributes attr;
+
+ if (display->window != None) {
+ XGetWindowAttributes (display->display, display->window, &attr);
+ display->win_width = attr.width;
+ display->win_height = attr.height;
+ } else {
+ display->win_width = 0;
+ display->win_height = 0;
+ }
+}
+
+void
+gst_gl_display_clear (GstGLDisplay * display)
+{
+ gst_gl_display_lock (display);
+
+ glDepthFunc (GL_LESS);
+ glEnable (GL_DEPTH_TEST);
+ glClearColor (0.2, 0.2, 0.2, 1.0);
+ glViewport (0, 0, display->win_width, display->win_height);
+
+ gst_gl_display_unlock (display);
+}
+
+void
+gst_gl_display_check_error (GstGLDisplay * display, int line)
+{
+ GLenum err = glGetError ();
+
+ if (err) {
+ GST_ERROR ("GL Error 0x%x at line %d", (int) err, line);
+ g_assert (0);
+ }
+}
+
+
+GLuint
+gst_gl_display_upload_texture_rectangle (GstGLDisplay * display,
+ GstVideoFormat type, void *data, int width, int height)
+{
+ GLuint texture;
+
+ glGenTextures (1, &texture);
+ glBindTexture (GL_TEXTURE_RECTANGLE_ARB, texture);
+
+ switch (type) {
+ case GST_VIDEO_FORMAT_RGBx:
+ glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA, width, height,
+ 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
+ GL_RGBA, GL_UNSIGNED_BYTE, data);
+ break;
+ case GST_VIDEO_FORMAT_BGRx:
+ glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA, width, height,
+ 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
+ GL_BGRA, GL_UNSIGNED_BYTE, data);
+ break;
+ case GST_VIDEO_FORMAT_xRGB:
+ glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA, width, height,
+ 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
+ GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, data);
+ break;
+ case GST_VIDEO_FORMAT_xBGR:
+ glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA, width, height,
+ 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
+ GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, data);
+ break;
+ case GST_VIDEO_FORMAT_YUY2:
+ glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_YCBCR_MESA, width, height,
+ 0, GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_REV_MESA, NULL);
+ glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
+ GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_REV_MESA, data);
+ break;
+ case GST_VIDEO_FORMAT_UYVY:
+ glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_YCBCR_MESA, width, height,
+ 0, GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_REV_MESA, NULL);
+ glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
+ GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_MESA, data);
+ break;
+ case GST_VIDEO_FORMAT_AYUV:
+ glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA, width, height,
+ 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
+ GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, data);
+ break;
+ default:
+ g_assert_not_reached ();
+ }
+
+ return texture;
+}
+
+
+static void
+draw_rect_texture (GstGLDisplay * display, GstVideoFormat type,
+ void *data, int width, int height)
+{
+ GLuint texture;
+
+ GST_DEBUG ("using rectangular texture");
+
+#ifdef GL_TEXTURE_RECTANGLE_ARB
+ glEnable (GL_TEXTURE_RECTANGLE_ARB);
+ //glGenTextures (1, &texture);
+ //glBindTexture (GL_TEXTURE_RECTANGLE_ARB, texture);
+
+ texture = gst_gl_display_upload_texture_rectangle (display, type,
+ data, width, height);
+
+ glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP);
+ glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP);
+ glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+
+#if 0
+ switch (type) {
+ case GST_VIDEO_FORMAT_RGBx:
+ glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA, width, height,
+ 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
+ GL_RGBA, GL_UNSIGNED_BYTE, data);
+ break;
+ case GST_VIDEO_FORMAT_BGRx:
+ glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA, width, height,
+ 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
+ GL_BGRA, GL_UNSIGNED_BYTE, data);
+ break;
+ case GST_VIDEO_FORMAT_xRGB:
+ glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA, width, height,
+ 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
+ GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, data);
+ break;
+ case GST_VIDEO_FORMAT_xBGR:
+ glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA, width, height,
+ 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
+ GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, data);
+ break;
+ case GST_VIDEO_FORMAT_YUY2:
+ glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_YCBCR_MESA, width, height,
+ 0, GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_REV_MESA, NULL);
+ glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
+ GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_REV_MESA, data);
+ break;
+ case GST_VIDEO_FORMAT_UYVY:
+ glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_YCBCR_MESA, width, height,
+ 0, GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_REV_MESA, NULL);
+ glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
+ GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_MESA, data);
+ break;
+ case GST_VIDEO_FORMAT_AYUV:
+ glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA, width, height,
+ 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
+ GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, data);
+ break;
+ default:
+ g_assert_not_reached ();
+ }
+
+#ifdef GL_POST_COLOR_MATRIX_RED_BIAS
+ if (type == GST_VIDEO_FORMAT_AYUV) {
+ const double matrix[16] = {
+ 1, 1, 1, 0,
+ 0, -0.344 * 1, 1.770 * 1, 0,
+ 1.403 * 1, -0.714 * 1, 0, 0,
+ 0, 0, 0, 1
+ };
+ glMatrixMode (GL_COLOR);
+ glLoadMatrixd (matrix);
+ glPixelTransferf (GL_POST_COLOR_MATRIX_RED_BIAS, -1.403 / 2);
+ glPixelTransferf (GL_POST_COLOR_MATRIX_GREEN_BIAS, (0.344 + 0.714) / 2);
+ glPixelTransferf (GL_POST_COLOR_MATRIX_BLUE_BIAS, -1.770 / 2);
+ }
+#endif
+#endif
+
+ glColor4f (1, 0, 1, 1);
+ glBegin (GL_QUADS);
+
+ glNormal3f (0, 0, -1);
+
+ glTexCoord2f (width, 0);
+ glVertex3f (1.0, 1.0, 0);
+ glTexCoord2f (0, 0);
+ glVertex3f (-1.0, 1.0, 0);
+ glTexCoord2f (0, height);
+ glVertex3f (-1.0, -1.0, 0);
+ glTexCoord2f (width, height);
+ glVertex3f (1.0, -1.0, 0);
+ glEnd ();
+ glDeleteTextures (1, &texture);
+#else
+ g_assert_not_reached ();
+#endif
+}
+
+static void
+draw_pow2_texture (GstGLDisplay * display, GstVideoFormat type,
+ void *data, int width, int height)
+{
+ int pow2_width;
+ int pow2_height;
+ double x, y;
+ GLuint texture;
+
+ GST_DEBUG ("using power-of-2 texture");
+
+ for (pow2_height = 64;
+ pow2_height < height && pow2_height > 0; pow2_height <<= 1);
+ for (pow2_width = 64; pow2_width < width && pow2_width > 0; pow2_width <<= 1);
+
+ glEnable (GL_TEXTURE_2D);
+ glGenTextures (1, &texture);
+ glBindTexture (GL_TEXTURE_2D, texture);
+ glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
+ glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
+ glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+
+ switch (type) {
+ case GST_VIDEO_FORMAT_RGBx:
+ glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA, pow2_width, pow2_height,
+ 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ glTexSubImage2D (GL_TEXTURE_2D, 0, 0, 0, width, height,
+ GL_RGBA, GL_UNSIGNED_BYTE, data);
+ break;
+ case GST_VIDEO_FORMAT_BGRx:
+ glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA, pow2_width, pow2_height,
+ 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ glTexSubImage2D (GL_TEXTURE_2D, 0, 0, 0, width, height,
+ GL_BGRA, GL_UNSIGNED_BYTE, data);
+ break;
+ case GST_VIDEO_FORMAT_xRGB:
+ glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA, pow2_width, pow2_height,
+ 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ glTexSubImage2D (GL_TEXTURE_2D, 0, 0, 0, width, height,
+ GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, data);
+ break;
+ case GST_VIDEO_FORMAT_xBGR:
+ glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA, pow2_width, pow2_height,
+ 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ glTexSubImage2D (GL_TEXTURE_2D, 0, 0, 0, width, height,
+ GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, data);
+ break;
+ case GST_VIDEO_FORMAT_YUY2:
+ glTexImage2D (GL_TEXTURE_2D, 0, GL_YCBCR_MESA, pow2_width, pow2_height,
+ 0, GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_REV_MESA, NULL);
+ glTexSubImage2D (GL_TEXTURE_2D, 0, 0, 0, width, height,
+ GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_REV_MESA, data);
+ break;
+ case GST_VIDEO_FORMAT_UYVY:
+ glTexImage2D (GL_TEXTURE_2D, 0, GL_YCBCR_MESA, pow2_width, pow2_height,
+ 0, GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_REV_MESA, NULL);
+ glTexSubImage2D (GL_TEXTURE_2D, 0, 0, 0, width, height,
+ GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_MESA, data);
+ break;
+ case GST_VIDEO_FORMAT_AYUV:
+ glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA, pow2_width, pow2_height,
+ 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ glTexSubImage2D (GL_TEXTURE_2D, 0, 0, 0, width, height,
+ GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, data);
+ break;
+ default:
+ g_assert_not_reached ();
+ }
+
+#ifdef GL_POST_COLOR_MATRIX_RED_BIAS
+ if (type == GST_VIDEO_FORMAT_AYUV) {
+ const double matrix[16] = {
+ 1, 1, 1, 0,
+ 0, -0.344 * 1, 1.770 * 1, 0,
+ 1.403 * 1, -0.714 * 1, 0, 0,
+ 0, 0, 0, 1
+ };
+ glMatrixMode (GL_COLOR);
+ glLoadMatrixd (matrix);
+ glPixelTransferf (GL_POST_COLOR_MATRIX_RED_BIAS, -1.403 / 2);
+ glPixelTransferf (GL_POST_COLOR_MATRIX_GREEN_BIAS, (0.344 + 0.714) / 2);
+ glPixelTransferf (GL_POST_COLOR_MATRIX_BLUE_BIAS, -1.770 / 2);
+ }
+#endif
+
+ glColor4f (1, 0, 1, 1);
+ glBegin (GL_QUADS);
+
+ glNormal3f (0, 0, -1);
+
+ x = (double) width / pow2_width;
+ y = (double) height / pow2_height;
+
+ glTexCoord2f (x, 0);
+ glVertex3f (1.0, 1.0, 0);
+ glTexCoord2f (0, 0);
+ glVertex3f (-1.0, 1.0, 0);
+ glTexCoord2f (0, y);
+ glVertex3f (-1.0, -1.0, 0);
+ glTexCoord2f (x, y);
+ glVertex3f (1.0, -1.0, 0);
+ glEnd ();
+ glDeleteTextures (1, &texture);
+}
+
+void
+gst_gl_display_draw_image (GstGLDisplay * display, GstVideoFormat type,
+ void *data, int width, int height)
+{
+ g_return_if_fail (data != NULL);
+ g_return_if_fail (width > 0);
+ g_return_if_fail (height > 0);
+
+ gst_gl_display_lock (display);
+
+#if 0
+ /* Doesn't work */
+ {
+ int64_t ust = 1234;
+ int64_t mst = 1234;
+ int64_t sbc = 1234;
+ gboolean ret;
+
+ ret = glXGetSyncValuesOML (display->display, display->window,
+ &ust, &mst, &sbc);
+ GST_DEBUG ("sync values %d %lld %lld %lld", ret, ust, mst, sbc);
+ }
+#endif
+
+#if 0
+ /* Does work, but is not relevant */
+ {
+ int32_t num = 1234;
+ int32_t den = 1234;
+ gboolean ret;
+
+ ret = glXGetMscRateOML (display->display, display->window, &num, &den);
+ GST_DEBUG ("rate %d %d %d", ret, num, den);
+ }
+#endif
+
+ gst_gl_display_update_attributes (display);
+
+ //glXSwapIntervalSGI (1);
+ glViewport (0, 0, display->win_width, display->win_height);
+
+ glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glMatrixMode (GL_PROJECTION);
+ glLoadIdentity ();
+
+ glMatrixMode (GL_MODELVIEW);
+ glLoadIdentity ();
+
+ glDisable (GL_CULL_FACE);
+ glEnableClientState (GL_TEXTURE_COORD_ARRAY);
+
+ glColor4f (1, 1, 1, 1);
+
+ if (display->have_texture_rectangle) {
+ draw_rect_texture (display, type, data, width, height);
+ } else {
+ draw_pow2_texture (display, type, data, width, height);
+ }
+
+ glXSwapBuffers (display->display, display->window);
+#if 0
+ /* Doesn't work */
+ {
+ ret = glXSwapBuffersMscOML (display->display, display->window, 0, 1, 0);
+ if (ret == 0) {
+ GST_DEBUG ("glXSwapBuffersMscOML failed");
+ }
+ }
+#endif
+
+ gst_gl_display_unlock (display);
+}
+
+void
+gst_gl_display_draw_rbo (GstGLDisplay * display, GLuint rbo,
+ int width, int height)
+{
+ GLuint texture;
+ GLuint fbo;
+
+ g_return_if_fail (width > 0);
+ g_return_if_fail (height > 0);
+ g_return_if_fail (rbo != None);
+
+ gst_gl_display_lock (display);
+
+ g_assert (display->window != None);
+ g_assert (display->context != NULL);
+
+ gst_gl_display_update_attributes (display);
+
+ glViewport (0, 0, display->win_width, display->win_height);
+
+ glClearColor (0.3, 0.3, 0.3, 1.0);
+ glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glMatrixMode (GL_PROJECTION);
+ glLoadIdentity ();
+
+ glMatrixMode (GL_MODELVIEW);
+ glLoadIdentity ();
+
+ glDisable (GL_CULL_FACE);
+ glEnableClientState (GL_TEXTURE_COORD_ARRAY);
+
+ glColor4f (1, 1, 1, 1);
+
+ glGenFramebuffersEXT (1, &fbo);
+ glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, fbo);
+
+ glFramebufferRenderbufferEXT (GL_FRAMEBUFFER_EXT,
+ GL_COLOR_ATTACHMENT0_EXT, GL_RENDERBUFFER_EXT, rbo);
+
+ glDrawBuffer (GL_COLOR_ATTACHMENT0_EXT);
+ glReadBuffer (GL_COLOR_ATTACHMENT0_EXT);
+
+ g_assert (glCheckFramebufferStatusEXT (GL_FRAMEBUFFER_EXT) ==
+ GL_FRAMEBUFFER_COMPLETE_EXT);
+
+#if 1
+ {
+ void *buffer;
+
+ buffer = malloc (320 * 240 * 4);
+ memset (buffer, random (), 320 * 240 * 4);
+ free (buffer);
+ }
+#endif
+
+ glEnable (GL_TEXTURE_RECTANGLE_ARB);
+ glGenTextures (1, &texture);
+ glBindTexture (GL_TEXTURE_RECTANGLE_ARB, texture);
+ glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGB, width, height, 0,
+ GL_RGB, GL_UNSIGNED_BYTE, NULL);
+ glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP);
+ glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP);
+ glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+
+ glFramebufferTexture2DEXT (GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
+ GL_TEXTURE_RECTANGLE_ARB, texture, 0);
+
+ glDrawBuffer (0);
+ glReadBuffer (0);
+ glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, 0);
+ glColor4f (1, 0, 1, 1);
+ gst_gl_display_check_error (display, __LINE__);
+//glBindTexture (GL_TEXTURE_RECTANGLE_ARB, 0);
+ glBegin (GL_QUADS);
+
+ glNormal3f (0, 0, -1);
+
+ glTexCoord2f (width, 0);
+ glVertex3f (0.9, 0.9, 0);
+ glTexCoord2f (0, 0);
+ glVertex3f (-0.9, 0.9, 0);
+ glTexCoord2f (0, height);
+ glVertex3f (-0.9, -0.9, 0);
+ glTexCoord2f (width, height);
+ glVertex3f (0.9, -0.9, 0);
+ glEnd ();
+ gst_gl_display_check_error (display, __LINE__);
+ glDeleteTextures (1, &texture);
+
+ glDeleteFramebuffersEXT (1, &fbo);
+ gst_gl_display_check_error (display, __LINE__);
+
+ glXSwapBuffers (display->display, display->window);
+
+ gst_gl_display_unlock (display);
+}
+
+void
+gst_gl_display_draw_texture (GstGLDisplay * display, GLuint texture,
+ int width, int height)
+{
+ g_return_if_fail (width > 0);
+ g_return_if_fail (height > 0);
+ g_return_if_fail (texture != None);
+
+ gst_gl_display_lock (display);
+
+ g_assert (display->window != None);
+ g_assert (display->context != NULL);
+
+ gst_gl_display_update_attributes (display);
+
+ glViewport (0, 0, display->win_width, display->win_height);
+
+ glClearColor (0.3, 0.3, 0.3, 1.0);
+ glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glMatrixMode (GL_PROJECTION);
+ glLoadIdentity ();
+
+ glMatrixMode (GL_MODELVIEW);
+ glLoadIdentity ();
+
+ glDisable (GL_CULL_FACE);
+ glEnableClientState (GL_TEXTURE_COORD_ARRAY);
+
+ glColor4f (1, 1, 1, 1);
+
+ glEnable (GL_TEXTURE_RECTANGLE_ARB);
+ glBindTexture (GL_TEXTURE_RECTANGLE_ARB, texture);
+ glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP);
+ glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP);
+ glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+
+ glColor4f (1, 0, 1, 1);
+ gst_gl_display_check_error (display, __LINE__);
+ glBegin (GL_QUADS);
+
+ glNormal3f (0, 0, -1);
+
+ glTexCoord2f (width, 0);
+ glVertex3f (0.9, 0.9, 0);
+ glTexCoord2f (0, 0);
+ glVertex3f (-0.9, 0.9, 0);
+ glTexCoord2f (0, height);
+ glVertex3f (-0.9, -0.9, 0);
+ glTexCoord2f (width, height);
+ glVertex3f (0.9, -0.9, 0);
+ glEnd ();
+ gst_gl_display_check_error (display, __LINE__);
+
+ glXSwapBuffers (display->display, display->window);
+
+ gst_gl_display_unlock (display);
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-09-06 10:58:59 +0000