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d3f3787d64
Newer devices require using a different GLSL extension for accessing external-oes textures in a shader using the texture() functions. While the GL_OES_EGL_image_external_essl3 should supposedly be supported on a any GLES3 android device, the extension was defined after a lot of the older drivers were built so they will not know about it. Thus there are two possible interpretations of which of texture[2D]() should be supported for external-oes textures. Strict adherence to the GL_OES_EGL_image_external extension spec which uses texture2D() or following GLES3's pattern, also allowing texture() as a function for accessing external-oes textures This adds another mangling pass to convert #extension GL_OES_EGL_image_external : ... into #extension GL_OES_EGL_image_external_essl3 : ... on GLES3 and when the GL_OES_EGL_image_external_essl3 extension is supported. Only uses texture() when the GLES3 and the GL_OES_EGL_image_external_essl3 extension is supported for external-oes textures. Uses GLES2 + texture2D() + GL_OES_EGL_image_external in all other external-oes cases. https://bugzilla.gnome.org/show_bug.cgi?id=766993
67 lines
2.4 KiB
C
67 lines
2.4 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_PRIVATE_H__
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#define __GST_GLSL_PRIVATE_H__
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#include <gst/gl/gstgl_fwd.h>
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G_BEGIN_DECLS
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#ifndef GL_COMPILE_STATUS
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#define GL_COMPILE_STATUS 0x8B81
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#endif
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#ifndef GLhandleARB
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#define GLhandleARB GLuint
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#endif
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typedef struct _GstGLSLFuncs
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{
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gboolean initialized;
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GLuint GSTGLAPI (*CreateProgram) (void);
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void GSTGLAPI (*DeleteProgram) (GLuint program);
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void GSTGLAPI (*UseProgram) (GLuint program);
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void GSTGLAPI (*GetAttachedShaders) (GLuint program, GLsizei maxcount,
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GLsizei * count, GLuint * shaders);
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GLuint GSTGLAPI (*CreateShader) (GLenum shaderType);
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void GSTGLAPI (*DeleteShader) (GLuint shader);
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void GSTGLAPI (*AttachShader) (GLuint program, GLuint shader);
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void GSTGLAPI (*DetachShader) (GLuint program, GLuint shader);
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void GSTGLAPI (*GetShaderiv) (GLuint program, GLenum pname, GLint * params);
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void GSTGLAPI (*GetProgramiv) (GLuint program, GLenum pname, GLint * params);
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void GSTGLAPI (*GetShaderInfoLog) (GLuint shader, GLsizei maxLength,
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GLsizei * length, char *log);
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void GSTGLAPI (*GetProgramInfoLog) (GLuint shader, GLsizei maxLength,
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GLsizei * length, char *log);
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} GstGLSLFuncs;
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G_GNUC_INTERNAL gboolean _gst_glsl_funcs_fill (GstGLSLFuncs * vtable, GstGLContext * context);
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G_GNUC_INTERNAL const gchar * _gst_glsl_shader_string_find_version (const gchar * str);
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G_GNUC_INTERNAL gchar *
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_gst_glsl_mangle_shader (const gchar * str, guint shader_type, GstGLTextureTarget from,
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GstGLTextureTarget to, GstGLContext * context, GstGLSLVersion * version, GstGLSLProfile * profile);
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G_END_DECLS
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#endif /* __GST_GLSL_PRIVATE_H__ */
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