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>
38 * GlExtensions class provides GL extensions support
58 * If the GL extension is available this function discards specified data in attachments
59 * from being copied from the target to improve performance.
61 * Usage: GLenum attachments[] = { GL_DEPTH_ATTACHMENT, GL_STENCIL_ATTACHMENT };
62 * DiscardFrameBufferEXT(GL_FRAMEBUFFER, 2, attachments);
64 * @param target is usually GL_FRAMEBUFFER
65 * @param numAttachments is the count of attachments
66 * @param attachments is a pointer to the attachments
68 void DiscardFrameBuffer (GLenum target, GLsizei numAttachments, const GLenum *attachments);
72 * Returns the program object's executable bytecode.
73 * @param[in] program The program object's name/id
74 * @param[in] bufSize The maximum number of bytes that may be written into binary
75 * @param[out] length The actual number of bytes written into binary
76 * @param[out] binaryFormat The format of the program binary
77 * @param[out] binary The actual program bytecode
79 void GetProgramBinaryOES (GLuint program, GLsizei bufSize, GLsizei *length, GLenum *binaryFormat, GLvoid *binary);
83 * Loads a program object with a program binary previously returned from GetProgramBinaryOES
84 * @param[in] program The program object's name/id
85 * @param[in] binaryFormat The format of the program binary
86 * @param[in] binary The program bytecode
87 * @param[in] length The number of bytes in binary
89 void ProgramBinaryOES (GLuint program, GLenum binaryFormat, const GLvoid *binary, GLint length);
93 * Specify a boundary between passes when using advanced blend equations.
95 bool BlendBarrierKHR ();
100 * Lazy Initialize extensions on first use
104 #ifdef GL_EXT_discard_framebuffer
105 PFNGLDISCARDFRAMEBUFFEREXTPROC mGlDiscardFramebuffer;
108 #ifdef GL_OES_get_program_binary
109 PFNGLGETPROGRAMBINARYOESPROC mGlGetProgramBinaryOES;
110 PFNGLPROGRAMBINARYOESPROC mGlProgramBinaryOES;
113 #ifdef GL_KHR_blend_equation_advanced
114 PFNGLBLENDBARRIERKHRPROC mBlendBarrierKHR;
121 } // namespace Adaptor
123 } // namespace Internal
127 #endif /* DALI_INTERNAL_GL_EXTENSION_H */