1 #ifndef DALI_INTERNAL_GL_EXTENSION_H
2 #define DALI_INTERNAL_GL_EXTENSION_H
5 * Copyright (c) 2019 Samsung Electronics Co., Ltd.
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
23 #include <GLES3/gl3.h>
24 #include <GLES2/gl2.h>
25 #include <GLES2/gl2ext.h>
41 * GlExtensions class provides GL extensions support
61 * If the GL extension is available this function discards specified data in attachments
62 * from being copied from the target to improve performance.
64 * Usage: GLenum attachments[] = { GL_DEPTH_ATTACHMENT, GL_STENCIL_ATTACHMENT };
65 * DiscardFrameBufferEXT(GL_FRAMEBUFFER, 2, attachments);
67 * @param target is usually GL_FRAMEBUFFER
68 * @param numAttachments is the count of attachments
69 * @param attachments is a pointer to the attachments
71 void DiscardFrameBuffer (GLenum target, GLsizei numAttachments, const GLenum *attachments);
75 * Returns the program object's executable bytecode.
76 * @param[in] program The program object's name/id
77 * @param[in] bufSize The maximum number of bytes that may be written into binary
78 * @param[out] length The actual number of bytes written into binary
79 * @param[out] binaryFormat The format of the program binary
80 * @param[out] binary The actual program bytecode
82 void GetProgramBinaryOES (GLuint program, GLsizei bufSize, GLsizei *length, GLenum *binaryFormat, GLvoid *binary);
86 * Loads a program object with a program binary previously returned from GetProgramBinaryOES
87 * @param[in] program The program object's name/id
88 * @param[in] binaryFormat The format of the program binary
89 * @param[in] binary The program bytecode
90 * @param[in] length The number of bytes in binary
92 void ProgramBinaryOES (GLuint program, GLenum binaryFormat, const GLvoid *binary, GLint length);
97 * Lazy Initialize extensions on first use
101 #ifdef GL_EXT_discard_framebuffer
102 PFNGLDISCARDFRAMEBUFFEREXTPROC mGlDiscardFramebuffer;
105 #ifdef GL_OES_get_program_binary
106 PFNGLGETPROGRAMBINARYOESPROC mGlGetProgramBinaryOES;
107 PFNGLPROGRAMBINARYOESPROC mGlProgramBinaryOES;
114 } // namespace ECoreX
116 } // namespace Adaptor
118 } // namespace Internal
122 #endif /* DALI_INTERNAL_GL_EXTENSION_H */