mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-27 20:21:24 +00:00
799efcb133
Provide a function to get the affine matrix in the meta in terms of NDC coordinates and use as a standard opengl matrix. Also advertise support for the affine transformation meta in the allocation query.
82 lines
2.5 KiB
C
82 lines
2.5 KiB
C
/*
|
|
* GStreamer
|
|
* Copyright (C) 2015 Matthew Waters <matthew@centricular.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., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "gstglshaderstrings.h"
|
|
|
|
/* *INDENT-OFF* */
|
|
const gchar *gst_gl_shader_string_vertex_default =
|
|
"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";
|
|
|
|
const gchar *gst_gl_shader_string_vertex_mat4_texture_transform =
|
|
"uniform mat4 u_transformation;\n"
|
|
"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 = (u_transformation * vec4(a_texcoord, 0, 1)).xy;\n"
|
|
"}\n";
|
|
|
|
const gchar *gst_gl_shader_string_vertex_mat4_vertex_transform =
|
|
"uniform mat4 u_transformation;\n"
|
|
"attribute vec4 a_position;\n"
|
|
"attribute vec2 a_texcoord;\n"
|
|
"varying vec2 v_texcoord;\n"
|
|
"void main()\n"
|
|
"{\n"
|
|
" gl_Position = u_transformation * a_position;\n"
|
|
" v_texcoord = a_texcoord;\n"
|
|
"}\n";
|
|
|
|
const gchar *gst_gl_shader_string_fragment_default =
|
|
"#ifdef GL_ES\n"
|
|
"precision mediump float;\n"
|
|
"#endif\n"
|
|
"varying vec2 v_texcoord;\n"
|
|
"uniform sampler2D tex;\n"
|
|
"void main()\n"
|
|
"{\n"
|
|
" gl_FragColor = texture2D(tex, v_texcoord);\n"
|
|
"}";
|
|
|
|
const gchar *gst_gl_shader_string_fragment_external_oes_default =
|
|
"#extension GL_OES_EGL_image_external : require\n"
|
|
"#ifdef GL_ES\n"
|
|
"precision mediump float;\n"
|
|
"#endif\n"
|
|
"varying vec2 v_texcoord;\n"
|
|
"uniform samplerExternalOES tex;\n"
|
|
"void main()\n"
|
|
"{\n"
|
|
" gl_FragColor = texture2D(tex, v_texcoord);\n"
|
|
"}";
|
|
/* *INDENT-ON* */
|