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gstreamer/gst-libs/gst/gl/gstglupload.c

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/*
* GStreamer
* Copyright (C) 2012 Matthew Waters <ystree00@gmail.com>
*
* 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 <stdio.h>
#include "gstglupload.h"
#include "gstglmemory.h"
static void _do_upload (GstGLDisplay * display, GstGLUpload * upload);
static void _do_upload_draw (GstGLDisplay * display, GstGLUpload * upload);
static void _do_upload_fill (GstGLDisplay * display, GstGLUpload * upload);
static void _do_upload_make (GstGLDisplay * display, GstGLUpload * upload);
static void _init_upload (GstGLDisplay * display, GstGLUpload * upload);
static void _init_upload_fbo (GstGLDisplay * display, GstGLUpload * upload);
static gboolean gst_gl_upload_perform_with_data_unlocked (GstGLUpload * upload,
GLuint texture_id, gpointer data[GST_VIDEO_MAX_PLANES]);
static gboolean gst_gl_upload_perform_with_data_unlocked_thread (GstGLUpload *
upload, GLuint texture_id, gpointer data[GST_VIDEO_MAX_PLANES]);
/* YUY2:r,g,a
UYVY:a,b,r */
static gchar *text_shader_YUY2_UYVY =
#ifndef OPENGL_ES2
"#extension GL_ARB_texture_rectangle : enable\n"
"uniform sampler2DRect Ytex, UVtex;\n"
#else
"precision mediump float;\n"
"varying vec2 v_texCoord;\n" "uniform sampler2D Ytex, UVtex;\n"
#endif
"void main(void) {\n" " float fx, fy, y, u, v, r, g, b;\n"
#ifndef OPENGL_ES2
" fx = gl_TexCoord[0].x;\n"
" fy = gl_TexCoord[0].y;\n"
" y = texture2DRect(Ytex,vec2(fx,fy)).%c;\n"
" u = texture2DRect(UVtex,vec2(fx*0.5,fy)).%c;\n"
" v = texture2DRect(UVtex,vec2(fx*0.5,fy)).%c;\n"
#else
" fx = v_texCoord.x;\n"
" fy = v_texCoord.y;\n"
" y = texture2D(Ytex,vec2(fx,fy)).%c;\n"
" u = texture2D(UVtex,vec2(fx*0.5,fy)).%c;\n"
" v = texture2D(UVtex,vec2(fx*0.5,fy)).%c;\n"
#endif
" y=1.164*(y-0.0627);\n"
" u=u-0.5;\n"
" v=v-0.5;\n"
" r = y+1.5958*v;\n"
" g = y-0.39173*u-0.81290*v;\n"
" b = y+2.017*u;\n" " gl_FragColor = vec4(r, g, b, 1.0);\n" "}\n";
/* ATI: "*0.5", ""
normal: "", "*0.5" */
static gchar *text_shader_I420_YV12 =
#ifndef OPENGL_ES2
"#extension GL_ARB_texture_rectangle : enable\n"
"uniform sampler2DRect Ytex,Utex,Vtex;\n"
#else
"precision mediump float;\n"
"varying vec2 v_texCoord;\n" "uniform sampler2D Ytex,Utex,Vtex;\n"
#endif
"void main(void) {\n" " float r,g,b,y,u,v;\n"
#ifndef OPENGL_ES2
" vec2 nxy = gl_TexCoord[0].xy;\n"
" y=texture2DRect(Ytex,nxy%s).r;\n"
" u=texture2DRect(Utex,nxy%s).r;\n" " v=texture2DRect(Vtex,nxy*0.5).r;\n"
#else
" vec2 nxy = v_texCoord.xy;\n"
" y=texture2D(Ytex,nxy).r;\n"
" u=texture2D(Utex,nxy).r;\n" " v=texture2D(Vtex,nxy).r;\n"
#endif
" y=1.1643*(y-0.0625);\n"
" u=u-0.5;\n"
" v=v-0.5;\n"
" r=y+1.5958*v;\n"
" g=y-0.39173*u-0.81290*v;\n"
" b=y+2.017*u;\n" " gl_FragColor=vec4(r,g,b,1.0);\n" "}\n";
static gchar *text_shader_AYUV =
#ifndef OPENGL_ES2
"#extension GL_ARB_texture_rectangle : enable\n"
"uniform sampler2DRect tex;\n"
#else
"precision mediump float;\n"
"varying vec2 v_texCoord;\n" "uniform sampler2D tex;\n"
#endif
"void main(void) {\n" " float r,g,b,y,u,v;\n"
#ifndef OPENGL_ES2
" vec2 nxy=gl_TexCoord[0].xy;\n"
" y=texture2DRect(tex,nxy).r;\n"
" u=texture2DRect(tex,nxy).g;\n" " v=texture2DRect(tex,nxy).b;\n"
#else
" vec2 nxy = v_texCoord.xy;\n"
" y=texture2D(tex,nxy).g;\n"
" u=texture2D(tex,nxy).b;\n" " v=texture2D(tex,nxy).a;\n"
#endif
" y=1.1643*(y-0.0625);\n"
" u=u-0.5;\n"
" v=v-0.5;\n"
" r=y+1.5958*v;\n"
" g=y-0.39173*u-0.81290*v;\n"
" b=y+2.017*u;\n" " gl_FragColor=vec4(r,g,b,1.0);\n" "}\n";
#ifdef OPENGL_ES2
static gchar *text_vertex_shader =
"attribute vec4 a_position; \n"
"attribute vec2 a_texCoord; \n"
"varying vec2 v_texCoord; \n"
"void main() \n"
"{ \n"
" gl_Position = a_position; \n"
" v_texCoord = a_texCoord; \n" "} \n";
#endif
GST_DEBUG_CATEGORY_STATIC (gst_gl_upload_debug);
#define GST_CAT_DEFAULT gst_gl_upload_debug
#define DEBUG_INIT \
GST_DEBUG_CATEGORY_INIT (gst_gl_upload_debug, "glupload", 0, "upload");
G_DEFINE_TYPE_WITH_CODE (GstGLUpload, gst_gl_upload, G_TYPE_OBJECT, DEBUG_INIT);
static void gst_gl_upload_finalize (GObject * object);
#define GST_GL_UPLOAD_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), \
GST_TYPE_GL_UPLOAD, GstGLUploadPrivate))
static void
gst_gl_upload_class_init (GstGLUploadClass * klass)
{
G_OBJECT_CLASS (klass)->finalize = gst_gl_upload_finalize;
}
static void
gst_gl_upload_init (GstGLUpload * upload)
{
upload->display = NULL;
g_mutex_init (&upload->lock);
upload->fbo = 0;
upload->depth_buffer = 0;
upload->out_texture = 0;
upload->shader = NULL;
#ifdef OPENGL_ES2
upload->shader_attr_position_loc = 0;
upload->shader_attr_texture_loc = 0;
#endif
gst_video_info_init (&upload->info);
}
GstGLUpload *
gst_gl_upload_new (GstGLDisplay * display)
{
GstGLUpload *upload;
upload = g_object_new (GST_TYPE_GL_UPLOAD, NULL);
upload->display = g_object_ref (display);
g_mutex_init (&upload->lock);
return upload;
}
static void
gst_gl_upload_finalize (GObject * object)
{
GstGLUpload *upload;
guint i;
upload = GST_GL_UPLOAD (object);
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (upload->in_texture[i]) {
gst_gl_display_del_texture (upload->display, &upload->in_texture[i]);
upload->in_texture[i] = 0;
}
}
if (upload->out_texture) {
gst_gl_display_del_texture (upload->display, &upload->out_texture);
upload->out_texture = 0;
}
if (upload->fbo || upload->depth_buffer) {
gst_gl_display_del_fbo (upload->display, upload->fbo, upload->depth_buffer);
upload->fbo = 0;
upload->depth_buffer = 0;
}
if (upload->shader) {
g_object_unref (G_OBJECT (upload->shader));
upload->shader = NULL;
}
if (upload->display) {
g_object_unref (G_OBJECT (upload->display));
upload->display = NULL;
}
}
gboolean
gst_gl_upload_init_format (GstGLUpload * upload, GstVideoFormat v_format,
guint width, guint height)
{
GstVideoInfo info;
g_return_val_if_fail (upload != NULL, FALSE);
g_return_val_if_fail (v_format != GST_VIDEO_FORMAT_UNKNOWN, FALSE);
g_return_val_if_fail (v_format != GST_VIDEO_FORMAT_ENCODED, FALSE);
g_return_val_if_fail (width > 0 && height > 0, FALSE);
g_mutex_lock (&upload->lock);
if (upload->initted) {
g_mutex_unlock (&upload->lock);
return FALSE;
} else {
upload->initted = TRUE;
}
gst_video_info_set_format (&info, v_format, width, height);
upload->info = info;
gst_gl_display_thread_add (upload->display,
(GstGLDisplayThreadFunc) _init_upload, upload);
g_mutex_unlock (&upload->lock);
return TRUE;
}
gboolean
gst_gl_upload_init_format_thread (GstGLUpload * upload, GstVideoFormat v_format,
guint width, guint height)
{
GstVideoInfo info;
g_return_val_if_fail (upload != NULL, FALSE);
g_return_val_if_fail (v_format != GST_VIDEO_FORMAT_UNKNOWN, FALSE);
g_return_val_if_fail (v_format != GST_VIDEO_FORMAT_ENCODED, FALSE);
g_return_val_if_fail (width > 0 && height > 0, FALSE);
g_mutex_lock (&upload->lock);
if (upload->initted) {
g_mutex_unlock (&upload->lock);
return FALSE;
} else {
upload->initted = TRUE;
}
gst_video_info_set_format (&info, v_format, width, height);
upload->info = info;
_init_upload (upload->display, upload);
g_mutex_unlock (&upload->lock);
return TRUE;
}
gboolean
gst_gl_upload_perform_with_memory (GstGLUpload * upload, GstGLMemory * gl_mem)
{
gpointer data[GST_VIDEO_MAX_PLANES];
guint i;
gboolean ret;
g_return_val_if_fail (upload != NULL, FALSE);
if (!GST_GL_MEMORY_FLAG_IS_SET (gl_mem, GST_GL_MEMORY_FLAG_UPLOAD_INITTED))
return FALSE;
if (!GST_GL_MEMORY_FLAG_IS_SET (gl_mem, GST_GL_MEMORY_FLAG_NEED_UPLOAD))
return FALSE;
g_mutex_lock (&upload->lock);
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&upload->info); i++) {
data[i] = (guint8 *) gl_mem->data +
GST_VIDEO_INFO_PLANE_OFFSET (&upload->info, i);
}
ret = gst_gl_upload_perform_with_data_unlocked (upload, gl_mem->tex_id, data);
GST_GL_MEMORY_FLAG_UNSET (gl_mem, GST_GL_MEMORY_FLAG_NEED_UPLOAD);
g_mutex_unlock (&upload->lock);
return ret;
}
gboolean
gst_gl_upload_perform_with_data (GstGLUpload * upload, GLuint texture_id,
gpointer data[GST_VIDEO_MAX_PLANES])
{
gboolean ret;
g_return_val_if_fail (upload != NULL, FALSE);
g_mutex_lock (&upload->lock);
ret = gst_gl_upload_perform_with_data_unlocked (upload, texture_id, data);
g_mutex_unlock (&upload->lock);
return ret;
}
static inline gboolean
_perform_with_data_unlocked_pre (GstGLUpload * upload,
GLuint texture_id, gpointer data[GST_VIDEO_MAX_PLANES])
{
guint i;
g_return_val_if_fail (upload != NULL, FALSE);
g_return_val_if_fail (texture_id > 0, FALSE);
g_return_val_if_fail (GST_VIDEO_INFO_FORMAT (&upload->info) !=
GST_VIDEO_FORMAT_UNKNOWN
&& GST_VIDEO_INFO_FORMAT (&upload->info) != GST_VIDEO_FORMAT_ENCODED,
FALSE);
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&upload->info); i++) {
g_return_val_if_fail (data[i] != NULL, FALSE);
}
upload->out_texture = texture_id;
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&upload->info); i++) {
upload->data[i] = data[i];
}
return TRUE;
}
static gboolean
gst_gl_upload_perform_with_data_unlocked (GstGLUpload * upload,
GLuint texture_id, gpointer data[GST_VIDEO_MAX_PLANES])
{
if (!_perform_with_data_unlocked_pre (upload, texture_id, data))
return FALSE;
gst_gl_display_thread_add (upload->display,
(GstGLDisplayThreadFunc) _do_upload, upload);
return TRUE;
}
gboolean
gst_gl_upload_perform_with_memory_thread (GstGLUpload * upload,
GstGLMemory * gl_mem)
{
gpointer data[GST_VIDEO_MAX_PLANES];
guint i;
gboolean ret;
g_return_val_if_fail (upload != NULL, FALSE);
if (!GST_GL_MEMORY_FLAG_IS_SET (gl_mem, GST_GL_MEMORY_FLAG_UPLOAD_INITTED))
return FALSE;
if (!GST_GL_MEMORY_FLAG_IS_SET (gl_mem, GST_GL_MEMORY_FLAG_NEED_UPLOAD))
return FALSE;
g_mutex_lock (&upload->lock);
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&upload->info); i++) {
data[i] = (guint8 *) gl_mem->data +
GST_VIDEO_INFO_PLANE_OFFSET (&upload->info, i);
}
ret =
gst_gl_upload_perform_with_data_unlocked_thread (upload, gl_mem->tex_id,
data);
GST_GL_MEMORY_FLAG_UNSET (gl_mem, GST_GL_MEMORY_FLAG_NEED_UPLOAD);
g_mutex_unlock (&upload->lock);
return ret;
}
gboolean
gst_gl_upload_perform_with_data_thread (GstGLUpload * upload, GLuint texture_id,
gpointer data[GST_VIDEO_MAX_PLANES])
{
gboolean ret;
g_return_val_if_fail (upload != NULL, FALSE);
g_mutex_lock (&upload->lock);
ret =
gst_gl_upload_perform_with_data_unlocked_thread (upload, texture_id,
data);
g_mutex_unlock (&upload->lock);
return ret;
}
static gboolean
gst_gl_upload_perform_with_data_unlocked_thread (GstGLUpload * upload,
GLuint texture_id, gpointer data[GST_VIDEO_MAX_PLANES])
{
if (!_perform_with_data_unlocked_pre (upload, texture_id, data))
return FALSE;
_do_upload (upload->display, upload);
return TRUE;
}
static inline guint64 *
_gen_key (GstVideoFormat v_format, guint width, guint height)
{
guint64 *key;
/* this limits the width and the height to 2^29-1 = 536870911 */
key = g_malloc (sizeof (guint64 *));
*key = v_format | ((guint64) width << 6) | ((guint64) height << 35);
return key;
}
static inline GstGLUpload *
_find_upload (GstGLDisplay * display, guint64 * key)
{
GstGLUpload *ret;
ret = g_hash_table_lookup (display->uploads, key);
if (!ret) {
ret = gst_gl_upload_new (display);
g_hash_table_insert (display->uploads, key, ret);
}
return ret;
}
GstGLUpload *
gst_gl_display_find_upload (GstGLDisplay * display, GstVideoFormat v_format,
guint width, guint height)
{
GstGLUpload *ret;
guint64 *key;
key = _gen_key (v_format, width, height);
gst_gl_display_lock (display);
ret = _find_upload (display, key);
gst_gl_display_unlock (display);
return ret;
}
GstGLUpload *
gst_gl_display_find_upload_thread (GstGLDisplay * display,
GstVideoFormat v_format, guint width, guint height)
{
GstGLUpload *ret;
guint64 *key;
key = _gen_key (v_format, width, height);
ret = _find_upload (display, key);
return ret;
}
/* Called in the gl thread */
void
_init_upload (GstGLDisplay * display, GstGLUpload * upload)
{
GstVideoFormat v_format;
v_format = GST_VIDEO_INFO_FORMAT (&upload->info);
GST_TRACE ("initializing texture upload for format:%d", v_format);
switch (v_format) {
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_ABGR:
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
/* color space conversion is not needed */
break;
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
case GST_VIDEO_FORMAT_AYUV:
/* color space conversion is needed */
{
/* check if fragment shader is available, then load them */
/* shouldn't we require ARB_shading_language_100? --Filippo */
if (GLEW_ARB_fragment_shader) {
#ifdef OPENGL_ES2
GError *error = NULL;
#endif
GST_INFO ("Context, ARB_fragment_shader supported: yes");
display->colorspace_conversion = GST_GL_DISPLAY_CONVERSION_GLSL;
_init_upload_fbo (display, upload);
switch (v_format) {
case GST_VIDEO_FORMAT_YUY2:
{
gchar text_shader_YUY2[2048];
sprintf (text_shader_YUY2, text_shader_YUY2_UYVY, 'r', 'g', 'a');
upload->shader = gst_gl_shader_new ();
#ifndef OPENGL_ES2
if (!gst_gl_shader_compile_and_check (upload->shader,
text_shader_YUY2, GST_GL_SHADER_FRAGMENT_SOURCE)) {
gst_gl_display_set_error (display,
"Failed to initialize shader for uploading YUY2");
g_object_unref (G_OBJECT (upload->shader));
upload->shader = NULL;
}
#else
gst_gl_shader_set_vertex_source (upload->shader,
text_vertex_shader);
gst_gl_shader_set_fragment_source (upload->shader,
text_shader_YUY2);
gst_gl_shader_compile (upload->shader, &error);
if (error) {
gst_gl_display_set_error (display, "%s", error->message);
g_error_free (error);
error = NULL;
gst_gl_shader_use (NULL);
g_object_unref (G_OBJECT (upload->shader));
display->shader = NULL;
} else {
upload->shader_attr_position_loc =
gst_gl_shader_get_attribute_location
(upload->shader, "a_position");
upload->shader_attr_texture_loc =
gst_gl_shader_get_attribute_location
(upload->shader, "a_texCoord");
}
#endif
}
break;
case GST_VIDEO_FORMAT_UYVY:
{
gchar text_shader_UYVY[2048];
sprintf (text_shader_UYVY,
#ifndef OPENGL_ES2
text_shader_YUY2_UYVY, 'a', 'b', 'r');
#else
text_shader_YUY2_UYVY, 'a', 'r', 'b');
#endif
upload->shader = gst_gl_shader_new ();
#ifndef OPENGL_ES2
if (!gst_gl_shader_compile_and_check (upload->shader,
text_shader_UYVY, GST_GL_SHADER_FRAGMENT_SOURCE)) {
gst_gl_display_set_error (display,
"Failed to initialize shader for uploading UYVY");
g_object_unref (G_OBJECT (upload->shader));
upload->shader = NULL;
}
#else
gst_gl_shader_set_vertex_source (upload->shader,
text_vertex_shader);
gst_gl_shader_set_fragment_source (upload->shader,
text_shader_UYVY);
gst_gl_shader_compile (upload->shader, &error);
if (error) {
gst_gl_display_set_error (display, "%s", error->message);
g_error_free (error);
error = NULL;
gst_gl_shader_use (NULL);
g_object_unref (G_OBJECT (display->shader));
display->shader = NULL;
} else {
display->shader_attr_position_loc =
gst_gl_shader_get_attribute_location
(upload->shader, "a_position");
display->shader_upload_attr_texture_loc =
gst_gl_shader_get_attribute_location
(upload->shader, "a_texCoord");
}
#endif
}
break;
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
{
#ifndef OPENGL_ES2
gchar text_shader[2048];
if ((g_ascii_strncasecmp ("ATI", (gchar *) glGetString (GL_VENDOR),
3) == 0)
&& (g_ascii_strncasecmp ("ATI Mobility Radeon HD",
(gchar *) glGetString (GL_RENDERER), 22) != 0)
&& (g_ascii_strncasecmp ("ATI Radeon HD",
(gchar *) glGetString (GL_RENDERER), 13) != 0))
sprintf (text_shader, text_shader_I420_YV12, "*0.5", "");
else
sprintf (text_shader, text_shader_I420_YV12, "", "*0.5");
#endif
upload->shader = gst_gl_shader_new ();
#ifndef OPENGL_ES2
if (!gst_gl_shader_compile_and_check
(upload->shader, text_shader, GST_GL_SHADER_FRAGMENT_SOURCE)) {
gst_gl_display_set_error (display,
"Failed to initialize shader for uploading I420 or YV12");
g_object_unref (G_OBJECT (upload->shader));
upload->shader = NULL;
}
#else
gst_gl_shader_set_vertex_source (upload->shader,
text_vertex_shader);
gst_gl_shader_set_fragment_source (upload->shader, text_shader);
gst_gl_shader_compile (upload->shader, &error);
if (error) {
gst_gl_display_set_error (display, "%s", error->message);
g_error_free (error);
error = NULL;
gst_gl_shader_use (NULL);
g_object_unref (G_OBJECT (upload->shader));
display->shader = NULL;
} else {
display->shader_attr_position_loc =
gst_gl_shader_get_attribute_location
(upload->shader, "a_position");
display->shader_attr_texture_loc =
gst_gl_shader_get_attribute_location
(upload->shader, "a_texCoord");
}
#endif
}
break;
case GST_VIDEO_FORMAT_AYUV:
{
upload->shader = gst_gl_shader_new ();
#ifndef OPENGL_ES2
if (!gst_gl_shader_compile_and_check (upload->shader,
text_shader_AYUV, GST_GL_SHADER_FRAGMENT_SOURCE)) {
gst_gl_display_set_error (display,
"Failed to initialize shader for uploading AYUV");
g_object_unref (G_OBJECT (upload->shader));
upload->shader = NULL;
}
#else
gst_gl_shader_set_vertex_source (upload->shader,
text_vertex_shader);
gst_gl_shader_set_fragment_source (upload->shader,
text_shader_AYUV);
gst_gl_shader_compile (upload->shader, &error);
if (error) {
gst_gl_display_set_error (display, "%s", error->message);
g_error_free (error);
error = NULL;
gst_gl_shader_use (NULL);
g_object_unref (G_OBJECT (upload->shader));
upload->shader = NULL;
} else {
upload->shader_attr_position_loc =
gst_gl_shader_get_attribute_location
(upload->shader, "a_position");
upload->shader_upload_attr_texture_loc =
gst_gl_shader_get_attribute_location
(upload->shader, "a_texCoord");
}
#endif
}
break;
default:
gst_gl_display_set_error (display,
"Unsupported upload video format %d", v_format);
break;
}
}
/* check if YCBCR MESA is available */
else if (GLEW_MESA_ycbcr_texture) {
/* GLSL and Color Matrix are not available on your drivers,
* switch to YCBCR MESA
*/
GST_INFO ("Context, ARB_fragment_shader supported: no");
GST_INFO ("Context, GLEW_MESA_ycbcr_texture supported: yes");
display->colorspace_conversion = GST_GL_DISPLAY_CONVERSION_MESA;
switch (v_format) {
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
/* color space conversion is not needed */
break;
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
case GST_VIDEO_FORMAT_AYUV:
/* MESA only supports YUY2 and UYVY */
gst_gl_display_set_error (display,
"Your MESA version only supports YUY2 and UYVY (GLSL is required for others yuv formats)");
break;
default:
gst_gl_display_set_error (display,
"Unsupported upload video format %d", v_format);
break;
}
}
/* check if color matrix is available (not supported) */
else if (GLEW_ARB_imaging) {
/* GLSL is not available on your drivers, switch to Color Matrix */
GST_INFO ("Context, ARB_fragment_shader supported: no");
GST_INFO ("Context, GLEW_MESA_ycbcr_texture supported: no");
GST_INFO ("Context, GLEW_ARB_imaging supported: yes");
display->colorspace_conversion = GST_GL_DISPLAY_CONVERSION_MATRIX;
gst_gl_display_set_error (display,
"Colorspace conversion using Color Matrix is not yet supported");
} else {
/* colorspace conversion is not possible */
gst_gl_display_set_error (display,
"ARB_fragment_shader supported, GLEW_ARB_imaging supported, GLEW_MESA_ycbcr_texture supported, not supported");
}
}
break;
default:
gst_gl_display_set_error (display, "Unsupported upload video format %d",
v_format);
break;
}
}
/* called by _init_upload (in the gl thread) */
void
_init_upload_fbo (GstGLDisplay * display, GstGLUpload * upload)
{
guint width, height;
GLuint fake_texture = 0; /* a FBO must hava texture to init */
width = GST_VIDEO_INFO_WIDTH (&upload->info);
height = GST_VIDEO_INFO_HEIGHT (&upload->info);
if (!GLEW_EXT_framebuffer_object) {
/* turn off the pipeline because Frame buffer object is a not present */
gst_gl_display_set_error (display,
"Context, EXT_framebuffer_object supported: no");
return;
}
GST_INFO ("Context, EXT_framebuffer_object supported: yes");
/* setup FBO */
glGenFramebuffersEXT (1, &upload->fbo);
glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, upload->fbo);
/* setup the render buffer for depth */
glGenRenderbuffersEXT (1, &upload->depth_buffer);
glBindRenderbufferEXT (GL_RENDERBUFFER_EXT, upload->depth_buffer);
#ifndef OPENGL_ES2
glRenderbufferStorageEXT (GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT,
width, height);
glRenderbufferStorageEXT (GL_RENDERBUFFER_EXT, GL_DEPTH24_STENCIL8_EXT,
width, height);
#else
glRenderbufferStorageEXT (GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT16,
width, height);
#endif
/* a fake texture is attached to the upload FBO (cannot init without it) */
glGenTextures (1, &fake_texture);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, fake_texture);
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA8, width, height, 0,
GL_RGBA, 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_TO_EDGE);
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T,
GL_CLAMP_TO_EDGE);
/* attach the texture to the FBO to renderer to */
glFramebufferTexture2DEXT (GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
GL_TEXTURE_RECTANGLE_ARB, fake_texture, 0);
/* attach the depth render buffer to the FBO */
glFramebufferRenderbufferEXT (GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT,
GL_RENDERBUFFER_EXT, upload->depth_buffer);
#ifndef OPENGL_ES2
glFramebufferRenderbufferEXT (GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT,
GL_RENDERBUFFER_EXT, upload->depth_buffer);
#endif
gst_gl_display_check_framebuffer_status ();
if (glCheckFramebufferStatusEXT (GL_FRAMEBUFFER_EXT) !=
GL_FRAMEBUFFER_COMPLETE_EXT)
gst_gl_display_set_error (display, "GL framebuffer status incomplete");
/* unbind the FBO */
glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, 0);
glDeleteTextures (1, &fake_texture);
_do_upload_make (display, upload);
}
/* Called by the idle function in the gl thread */
void
_do_upload (GstGLDisplay * display, GstGLUpload * upload)
{
GstVideoFormat v_format;
guint width, height;
width = GST_VIDEO_INFO_WIDTH (&upload->info);
height = GST_VIDEO_INFO_HEIGHT (&upload->info);
v_format = GST_VIDEO_INFO_FORMAT (&upload->info);
GST_TRACE ("uploading texture:%u dimensions: %ux%u", upload->out_texture,
width, height);
_do_upload_fill (display, upload);
switch (v_format) {
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_ABGR:
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
/* color space conversion is not needed */
break;
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
case GST_VIDEO_FORMAT_AYUV:
{
switch (display->colorspace_conversion) {
case GST_GL_DISPLAY_CONVERSION_GLSL:
/* color space conversion is needed */
_do_upload_draw (display, upload);
break;
case GST_GL_DISPLAY_CONVERSION_MATRIX:
/* color space conversion is needed */
/* not yet supported */
break;
case GST_GL_DISPLAY_CONVERSION_MESA:
/* color space conversion is not needed */
break;
default:
gst_gl_display_set_error (display, "Unknown colorspace conversion %d",
display->colorspace_conversion);
g_assert_not_reached ();
break;
}
}
break;
default:
gst_gl_display_set_error (display, "Unsupported upload video format %d",
v_format);
g_assert_not_reached ();
break;
}
}
/* called by gst_gl_display_thread_do_upload (in the gl thread) */
void
_do_upload_make (GstGLDisplay * display, GstGLUpload * upload)
{
GstVideoFormat v_format;
guint width, height;
width = GST_VIDEO_INFO_WIDTH (&upload->info);
height = GST_VIDEO_INFO_HEIGHT (&upload->info);
v_format = GST_VIDEO_INFO_FORMAT (&upload->info);
glGenTextures (1, &upload->in_texture[0]);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->in_texture[0]);
switch (v_format) {
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_ABGR:
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA,
width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
break;
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGB,
width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
break;
case GST_VIDEO_FORMAT_AYUV:
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA,
width, height, 0, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, NULL);
break;
case GST_VIDEO_FORMAT_YUY2:
switch (display->colorspace_conversion) {
case GST_GL_DISPLAY_CONVERSION_GLSL:
case GST_GL_DISPLAY_CONVERSION_MATRIX:
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_LUMINANCE_ALPHA,
width, height, 0, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, NULL);
glGenTextures (1, &upload->in_texture[1]);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->in_texture[1]);
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA8,
width, height, 0, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, NULL);
break;
case GST_GL_DISPLAY_CONVERSION_MESA:
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_YCBCR_MESA, width,
height, 0, GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_MESA, NULL);
break;
default:
gst_gl_display_set_error (display, "Unknown colorspace conversion %d",
display->colorspace_conversion);
g_assert_not_reached ();
break;
}
break;
case GST_VIDEO_FORMAT_UYVY:
switch (display->colorspace_conversion) {
case GST_GL_DISPLAY_CONVERSION_GLSL:
case GST_GL_DISPLAY_CONVERSION_MATRIX:
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_LUMINANCE_ALPHA,
width, height, 0, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, NULL);
glGenTextures (1, &upload->in_texture[1]);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->in_texture[1]);
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA8,
width, height, 0, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, NULL);
break;
case GST_GL_DISPLAY_CONVERSION_MESA:
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_YCBCR_MESA, width,
height, 0, GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_MESA, NULL);
break;
default:
gst_gl_display_set_error (display, "Unknown colorspace conversion %d",
display->colorspace_conversion);
g_assert_not_reached ();
break;
}
break;
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_LUMINANCE,
width, height, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NULL);
glGenTextures (1, &upload->in_texture[1]);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->in_texture[1]);
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_LUMINANCE,
GST_ROUND_UP_2 (width) / 2,
GST_ROUND_UP_2 (height) / 2, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NULL);
glGenTextures (1, &upload->in_texture[2]);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->in_texture[2]);
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_LUMINANCE,
GST_ROUND_UP_2 (width) / 2,
GST_ROUND_UP_2 (height) / 2, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NULL);
break;
default:
gst_gl_display_set_error (display, "Unsupported upload video format %d",
v_format);
g_assert_not_reached ();
break;
}
}
/* called by gst_gl_display_thread_do_upload (in the gl thread) */
void
_do_upload_fill (GstGLDisplay * display, GstGLUpload * upload)
{
GstVideoFormat v_format;
guint width, height;
width = GST_VIDEO_INFO_WIDTH (&upload->info);
height = GST_VIDEO_INFO_HEIGHT (&upload->info);
v_format = GST_VIDEO_INFO_FORMAT (&upload->info);
switch (v_format) {
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_ABGR:
/* color space conversion is not needed */
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->out_texture);
break;
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
case GST_VIDEO_FORMAT_AYUV:
switch (display->colorspace_conversion) {
case GST_GL_DISPLAY_CONVERSION_GLSL:
case GST_GL_DISPLAY_CONVERSION_MATRIX:
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->in_texture[0]);
break;
case GST_GL_DISPLAY_CONVERSION_MESA:
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->out_texture);
break;
default:
gst_gl_display_set_error (display, "Unknown colorspace conversion %d",
display->colorspace_conversion);
g_assert_not_reached ();
break;
}
break;
default:
gst_gl_display_set_error (display, "Unsupported upload video format %d",
v_format);
g_assert_not_reached ();
break;
}
switch (v_format) {
case GST_VIDEO_FORMAT_RGB:
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_RGB, GL_UNSIGNED_BYTE, upload->data[0]);
break;
case GST_VIDEO_FORMAT_BGR:
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_BGR, GL_UNSIGNED_BYTE, upload->data[0]);
break;
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_RGBA:
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_RGBA, GL_UNSIGNED_BYTE, upload->data[0]);
break;
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_BGRA:
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_BGRA, GL_UNSIGNED_BYTE, upload->data[0]);
break;
case GST_VIDEO_FORMAT_AYUV:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_ARGB:
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, upload->data[0]);
break;
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_ABGR:
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, upload->data[0]);
break;
case GST_VIDEO_FORMAT_YUY2:
switch (display->colorspace_conversion) {
case GST_GL_DISPLAY_CONVERSION_GLSL:
case GST_GL_DISPLAY_CONVERSION_MATRIX:
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, upload->data[0]);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->in_texture[1]);
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0,
GST_ROUND_UP_2 (width) / 2, height,
GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, upload->data[0]);
break;
case GST_GL_DISPLAY_CONVERSION_MESA:
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_REV_MESA, upload->data[0]);
break;
default:
gst_gl_display_set_error (display, "Unknow colorspace conversion %d",
display->colorspace_conversion);
g_assert_not_reached ();
break;
}
break;
case GST_VIDEO_FORMAT_UYVY:
switch (display->colorspace_conversion) {
case GST_GL_DISPLAY_CONVERSION_GLSL:
case GST_GL_DISPLAY_CONVERSION_MATRIX:
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, upload->data[0]);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->in_texture[1]);
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0,
GST_ROUND_UP_2 (width) / 2, height,
GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, upload->data[0]);
break;
case GST_GL_DISPLAY_CONVERSION_MESA:
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_MESA, upload->data[0]);
break;
default:
gst_gl_display_set_error (display, "Unknow colorspace conversion %d",
display->colorspace_conversion);
g_assert_not_reached ();
break;
}
break;
case GST_VIDEO_FORMAT_I420:
{
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_LUMINANCE, GL_UNSIGNED_BYTE, upload->data[0]);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->in_texture[1]);
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0,
GST_ROUND_UP_2 (width) / 2, GST_ROUND_UP_2 (height) / 2,
GL_LUMINANCE, GL_UNSIGNED_BYTE, upload->data[1]);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->in_texture[2]);
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0,
GST_ROUND_UP_2 (width) / 2, GST_ROUND_UP_2 (height) / 2,
GL_LUMINANCE, GL_UNSIGNED_BYTE, upload->data[2]);
}
break;
case GST_VIDEO_FORMAT_YV12: /* same as I420 except plane 1+2 swapped */
{
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_LUMINANCE, GL_UNSIGNED_BYTE, upload->data[0]);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->in_texture[2]);
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0,
GST_ROUND_UP_2 (width) / 2, GST_ROUND_UP_2 (height) / 2,
GL_LUMINANCE, GL_UNSIGNED_BYTE, upload->data[1]);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->in_texture[1]);
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0,
GST_ROUND_UP_2 (width) / 2, GST_ROUND_UP_2 (height) / 2,
GL_LUMINANCE, GL_UNSIGNED_BYTE, upload->data[2]);
}
break;
default:
gst_gl_display_set_error (display, "Unsupported upload video format %d",
v_format);
g_assert_not_reached ();
break;
}
/* make sure no texture is in use in our opengl context
* in case we want to use the upload texture in an other opengl context
*/
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, 0);
}
/* called by _do_upload (in the gl thread) */
void
_do_upload_draw (GstGLDisplay * display, GstGLUpload * upload)
{
GstVideoFormat v_format;
guint width, height;
#ifdef OPENGL_ES2
GLint viewport_dim[4];
const GLfloat vVertices[] = { 1.0f, -1.0f, 0.0f,
1.0f, 0.0f,
-1.0f, -1.0f, 0.0f,
0.0f, .0f,
-1.0f, 1.0f, 0.0f,
0.0f, 1.0f,
1.0f, 1.0f, 0.0f,
1.0f, 1.0f
};
GLushort indices[] = { 0, 1, 2, 0, 2, 3 };
#endif
width = GST_VIDEO_INFO_WIDTH (&upload->info);
height = GST_VIDEO_INFO_HEIGHT (&upload->info);
v_format = GST_VIDEO_INFO_FORMAT (&upload->info);
glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, upload->fbo);
/* setup a texture to render to */
#ifndef OPENGL_ES2
glEnable (GL_TEXTURE_RECTANGLE_ARB);
#endif
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->out_texture);
/* attach the texture to the FBO to renderer to */
glFramebufferTexture2DEXT (GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
GL_TEXTURE_RECTANGLE_ARB, upload->out_texture, 0);
if (GLEW_ARB_fragment_shader)
gst_gl_shader_use (NULL);
#ifndef OPENGL_ES2
glPushAttrib (GL_VIEWPORT_BIT);
glMatrixMode (GL_PROJECTION);
glPushMatrix ();
glLoadIdentity ();
gluOrtho2D (0.0, width, 0.0, height);
glMatrixMode (GL_MODELVIEW);
glPushMatrix ();
glLoadIdentity ();
#else /* OPENGL_ES2 */
glGetIntegerv (GL_VIEWPORT, viewport_dim);
#endif
glViewport (0, 0, width, height);
#ifndef OPENGL_ES2
glDrawBuffer (GL_COLOR_ATTACHMENT0_EXT);
#endif
glClearColor (0.0, 0.0, 0.0, 0.0);
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
switch (v_format) {
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_ABGR:
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
{
#ifndef OPENGL_ES2
glMatrixMode (GL_PROJECTION);
glLoadIdentity ();
#else
glVertexAttribPointer (upload->shader_attr_position_loc, 3,
GL_FLOAT, GL_FALSE, 5 * sizeof (GLfloat), vVertices);
glVertexAttribPointer (upload->shader_attr_texture_loc, 2,
GL_FLOAT, GL_FALSE, 5 * sizeof (GLfloat), &vVertices[3]);
glEnableVertexAttribArray (upload->shader_attr_position_loc);
glEnableVertexAttribArray (upload->shader_attr_texture_loc);
#endif
#ifndef OPENGL_ES2
glEnable (GL_TEXTURE_RECTANGLE_ARB);
#endif
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->in_texture[0]);
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_TO_EDGE);
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T,
GL_CLAMP_TO_EDGE);
#ifndef OPENGL_ES2
glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
#endif
}
break;
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
{
switch (display->colorspace_conversion) {
case GST_GL_DISPLAY_CONVERSION_GLSL:
case GST_GL_DISPLAY_CONVERSION_MATRIX:
{
gst_gl_shader_use (upload->shader);
#ifndef OPENGL_ES2
glMatrixMode (GL_PROJECTION);
glLoadIdentity ();
#else
glVertexAttribPointer (upload->shader_attr_position_loc, 3,
GL_FLOAT, GL_FALSE, 5 * sizeof (GLfloat), vVertices);
glVertexAttribPointer (upload->shader_attr_texture_loc, 2,
GL_FLOAT, GL_FALSE, 5 * sizeof (GLfloat), &vVertices[3]);
glEnableVertexAttribArray (upload->shader_attr_position_loc);
glEnableVertexAttribArray (upload->shader_attr_texture_loc);
#endif
glActiveTextureARB (GL_TEXTURE1_ARB);
gst_gl_shader_set_uniform_1i (upload->shader, "UVtex", 1);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->in_texture[1]);
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_TO_EDGE);
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T,
GL_CLAMP_TO_EDGE);
glActiveTextureARB (GL_TEXTURE0_ARB);
gst_gl_shader_set_uniform_1i (upload->shader, "Ytex", 0);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->in_texture[0]);
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_TO_EDGE);
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T,
GL_CLAMP_TO_EDGE);
}
break;
case GST_GL_DISPLAY_CONVERSION_MESA:
{
#ifndef OPENGL_ES2
glMatrixMode (GL_PROJECTION);
glLoadIdentity ();
glEnable (GL_TEXTURE_RECTANGLE_ARB);
#endif
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->in_texture[0]);
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_TO_EDGE);
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T,
GL_CLAMP_TO_EDGE);
#ifndef OPENGL_ES2
glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
#endif
}
break;
default:
gst_gl_display_set_error (display, "Unknow colorspace conversion %d",
display->colorspace_conversion);
g_assert_not_reached ();
break;
}
}
break;
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
{
gst_gl_shader_use (upload->shader);
#ifndef OPENGL_ES2
glMatrixMode (GL_PROJECTION);
glLoadIdentity ();
#else
glVertexAttribPointer (upload->shader_attr_position_loc, 3,
GL_FLOAT, GL_FALSE, 5 * sizeof (GLfloat), vVertices);
glVertexAttribPointer (upload->shader_attr_texture_loc, 2,
GL_FLOAT, GL_FALSE, 5 * sizeof (GLfloat), &vVertices[3]);
glEnableVertexAttribArray (upload->shader_attr_position_loc);
glEnableVertexAttribArray (upload->shader_attr_texture_loc);
#endif
glActiveTextureARB (GL_TEXTURE1_ARB);
gst_gl_shader_set_uniform_1i (upload->shader, "Utex", 1);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->in_texture[1]);
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_TO_EDGE);
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T,
GL_CLAMP_TO_EDGE);
glActiveTextureARB (GL_TEXTURE2_ARB);
gst_gl_shader_set_uniform_1i (upload->shader, "Vtex", 2);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->in_texture[2]);
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_TO_EDGE);
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T,
GL_CLAMP_TO_EDGE);
glActiveTextureARB (GL_TEXTURE0_ARB);
gst_gl_shader_set_uniform_1i (upload->shader, "Ytex", 0);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->in_texture[0]);
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_TO_EDGE);
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T,
GL_CLAMP_TO_EDGE);
}
break;
case GST_VIDEO_FORMAT_AYUV:
{
gst_gl_shader_use (upload->shader);
#ifndef OPENGL_ES2
glMatrixMode (GL_PROJECTION);
glLoadIdentity ();
#else
glVertexAttribPointer (upload->shader_attr_position_loc, 3,
GL_FLOAT, GL_FALSE, 5 * sizeof (GLfloat), vVertices);
glVertexAttribPointer (upload->shader_attr_texture_loc, 2,
GL_FLOAT, GL_FALSE, 5 * sizeof (GLfloat), &vVertices[3]);
glEnableVertexAttribArray (upload->shader_attr_position_loc);
glEnableVertexAttribArray (upload->shader_attr_texture_loc);
#endif
glActiveTextureARB (GL_TEXTURE0_ARB);
gst_gl_shader_set_uniform_1i (upload->shader, "tex", 0);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, upload->in_texture[0]);
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_TO_EDGE);
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T,
GL_CLAMP_TO_EDGE);
}
break;
default:
gst_gl_display_set_error (display, "Unsupported upload video format %d",
v_format);
g_assert_not_reached ();
break;
} /* end switch display->currentVideo_format */
#ifndef OPENGL_ES2
glBegin (GL_QUADS);
glTexCoord2i (width, 0);
glVertex2f (1.0f, -1.0f);
glTexCoord2i (0, 0);
glVertex2f (-1.0f, -1.0f);
glTexCoord2i (0, height);
glVertex2f (-1.0f, 1.0f);
glTexCoord2i (width, height);
glVertex2f (1.0f, 1.0f);
glEnd ();
glDrawBuffer (GL_NONE);
#else /* OPENGL_ES2 */
glDrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices);
#endif
/* we are done with the shader */
if (display->colorspace_conversion == GST_GL_DISPLAY_CONVERSION_GLSL)
glUseProgramObjectARB (0);
#ifndef OPENGL_ES2
glDisable (GL_TEXTURE_RECTANGLE_ARB);
glMatrixMode (GL_PROJECTION);
glPopMatrix ();
glMatrixMode (GL_MODELVIEW);
glPopMatrix ();
glPopAttrib ();
#else
glViewport (viewport_dim[0], viewport_dim[1], viewport_dim[2],
viewport_dim[3]);
#endif
gst_gl_display_check_framebuffer_status ();
glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, 0);
}
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