mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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675415bf2e
The use of mediump as a specifier in GLSL shaders will have limited resolution and when used as texture coordinates may become inaccurate over texture sizes of 1024.
169 lines
6 KiB
C
169 lines
6 KiB
C
/*
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* GStreamer
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* Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
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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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#ifndef __GST_GLSL_H__
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#define __GST_GLSL_H__
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#include <gst/gl/gstgl_fwd.h>
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G_BEGIN_DECLS
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GST_GL_API
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GQuark gst_glsl_error_quark (void);
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/**
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* GST_GLSL_ERROR:
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*
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* Error domain for GStreamer's GLSL module. Errors in this domain will be
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* from the #GstGLSLError enumeration
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*/
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#define GST_GLSL_ERROR (gst_glsl_error_quark ())
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/**
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* GstGLSLError:
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* @GST_GLSL_ERROR_COMPILE: Compilation error occured
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* @GST_GLSL_ERROR_LINK: Link error occured
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* @GST_GLSL_ERROR_PROGRAM: General program error occured
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*
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* Compilation stage that caused an error
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*
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* Since: 1.8
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*/
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typedef enum {
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GST_GLSL_ERROR_COMPILE,
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GST_GLSL_ERROR_LINK,
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GST_GLSL_ERROR_PROGRAM,
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} GstGLSLError;
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/**
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* GstGLSLVersion:
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* @GST_GLSL_VERSION_NONE: no version
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* @GST_GLSL_VERSION_100: version 100 (only valid for ES)
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* @GST_GLSL_VERSION_110: version 110 (only valid for compatibility desktop GL)
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* @GST_GLSL_VERSION_120: version 120 (only valid for compatibility desktop GL)
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* @GST_GLSL_VERSION_130: version 130 (only valid for compatibility desktop GL)
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* @GST_GLSL_VERSION_140: version 140 (only valid for compatibility desktop GL)
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* @GST_GLSL_VERSION_150: version 150 (valid for compatibility/core desktop GL)
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* @GST_GLSL_VERSION_300: version 300 (only valid for ES)
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* @GST_GLSL_VERSION_310: version 310 (only valid for ES)
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* @GST_GLSL_VERSION_320: version 320 (only valid for ES)
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* @GST_GLSL_VERSION_330: version 330 (valid for compatibility/core desktop GL)
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* @GST_GLSL_VERSION_400: version 400 (valid for compatibility/core desktop GL)
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* @GST_GLSL_VERSION_410: version 410 (valid for compatibility/core desktop GL)
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* @GST_GLSL_VERSION_420: version 420 (valid for compatibility/core desktop GL)
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* @GST_GLSL_VERSION_430: version 430 (valid for compatibility/core desktop GL)
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* @GST_GLSL_VERSION_440: version 440 (valid for compatibility/core desktop GL)
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* @GST_GLSL_VERSION_450: version 450 (valid for compatibility/core desktop GL)
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*
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* GLSL version list
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*
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* Since: 1.8
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*/
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typedef enum
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{
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GST_GLSL_VERSION_NONE = 0,
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GST_GLSL_VERSION_100 = 100, /* ES */
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GST_GLSL_VERSION_110 = 110, /* GL */
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GST_GLSL_VERSION_120 = 120, /* GL */
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GST_GLSL_VERSION_130 = 130, /* GL */
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GST_GLSL_VERSION_140 = 140, /* GL */
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GST_GLSL_VERSION_150 = 150, /* GL */
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GST_GLSL_VERSION_300 = 300, /* ES */
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GST_GLSL_VERSION_310 = 310, /* ES */
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GST_GLSL_VERSION_320 = 320, /* ES */
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GST_GLSL_VERSION_330 = 330, /* GL */
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GST_GLSL_VERSION_400 = 400, /* GL */
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GST_GLSL_VERSION_410 = 410, /* GL */
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GST_GLSL_VERSION_420 = 420, /* GL */
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GST_GLSL_VERSION_430 = 430, /* GL */
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GST_GLSL_VERSION_440 = 440, /* GL */
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GST_GLSL_VERSION_450 = 450, /* GL */
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} GstGLSLVersion;
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/**
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* GstGLSLProfile:
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* @GST_GLSL_PROFILE_NONE: no profile supported/available
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* @GST_GLSL_PROFILE_ES: OpenGL|ES profile
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* @GST_GLSL_PROFILE_CORE: OpenGL core profile
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* @GST_GLSL_PROFILE_COMPATIBILITY: OpenGL compatibility profile
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* @GST_GLSL_PROFILE_ANY: any OpenGL/OpenGL|ES profile
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*
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* GLSL profiles
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*
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* Since: 1.8
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*/
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/* FIXME: For GST_GLSL_PROFILE_ANY ~0 -> 0xffffffff see
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* https://bugzilla.gnome.org/show_bug.cgi?id=732633
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*/
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typedef enum
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{
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/* XXX: maybe make GstGLAPI instead */
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GST_GLSL_PROFILE_NONE = 0,
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GST_GLSL_PROFILE_ES = (1 << 0),
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GST_GLSL_PROFILE_CORE = (1 << 1),
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GST_GLSL_PROFILE_COMPATIBILITY = (1 << 2),
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GST_GLSL_PROFILE_ANY = (gint) (0xffffffff),
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} GstGLSLProfile;
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GST_GL_API
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GstGLSLVersion gst_glsl_version_from_string (const gchar * string);
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GST_GL_API
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const gchar * gst_glsl_version_to_string (GstGLSLVersion version);
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GST_GL_API
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GstGLSLProfile gst_glsl_profile_from_string (const gchar * string);
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GST_GL_API
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const gchar * gst_glsl_profile_to_string (GstGLSLProfile profile);
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GST_GL_API
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gchar * gst_glsl_version_profile_to_string (GstGLSLVersion version,
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GstGLSLProfile profile);
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GST_GL_API
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gboolean gst_glsl_version_profile_from_string (const gchar * string,
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GstGLSLVersion * version_ret,
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GstGLSLProfile * profile_ret);
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GST_GL_API
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gboolean gst_glsl_string_get_version_profile (const gchar *s,
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GstGLSLVersion * version,
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GstGLSLProfile * profile);
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GST_GL_API
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GstGLSLVersion gst_gl_version_to_glsl_version (GstGLAPI gl_api, gint maj, gint min);
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GST_GL_API
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gboolean gst_gl_context_supports_glsl_profile_version (GstGLContext * context,
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GstGLSLVersion version,
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GstGLSLProfile profile);
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GST_GL_API
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gboolean gst_gl_context_supports_precision (GstGLContext * context,
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GstGLSLVersion version,
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GstGLSLProfile profile);
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GST_GL_API
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gboolean gst_gl_context_supports_precision_highp (GstGLContext * context,
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GstGLSLVersion version,
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GstGLSLProfile profile);
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G_END_DECLS
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#endif /* __GST_GLSL_H__ */
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