GLPROGRAMBINARY(3G)

okay bestie, this is the GLPROGRAMBINARY(3G) page — the one about loading a program object with a program binary, and it is iconic in the most “save your shader, restore your shader” way ✨💅

✨ NAME ✨

glProgramBinary — load a program object with a program binary. Like, that’s the whole assignment, no cap.

🎀 C SPECIFICATION 🎀

void glProgramBinary(GLuint program, GLenum binaryFormat,
                     const void *binary, GLsizei length);

🌸 PARAMETERS 🌸

• program — specifies the name of a program object into which to load a program binary. It’s the destination, bestie 🫶
• binaryFormat — specifies the format of the binary data in binary.
• binary — specifies the address an array containing the binary to be loaded into program.
• length — specifies the number of bytes contained in binary.

🦋 DESCRIPTION 🦋

Okay so glProgramBinary loads a program object with a program binary previously returned from glGetProgramBinary(). binaryFormat and binary must be those returned by a previous call to glGetProgramBinary(), and length must be the length returned by glGetProgramBinary(), or by glGetProgram() when called with pname set to GL_PROGRAM_BINARY_LENGTH. If these conditions are not met, loading the program binary will fail and program’s GL_LINK_STATUS will be set to GL_FALSE. Like, the vibe check failed and the link status said nope 💀

A program object’s program binary is replaced by calls to glLinkProgram() or glProgramBinary. When linking success or failure is concerned, glProgramBinary can be considered to perform an implicit linking operation. glLinkProgram() and glProgramBinary both set the program object’s GL_LINK_STATUS to GL_TRUE or GL_FALSE.

A successful call to glProgramBinary will reset all uniform variables to their initial values. The initial value is either the value of the variable’s initializer as specified in the original shader source, or zero if no initializer was present. Additionally, all vertex shader input and fragment shader output assignments that were in effect when the program was linked before saving are restored with glProgramBinary is called. Yes, bestie, that’s the sentence — we keep it exactly as the page says 😭

🙈 ERRORS 🙈

• GL_INVALID_OPERATION is generated if program is not the name of an existing program object.
• GL_INVALID_ENUM is generated if binaryFormat is not a value recognized by the implementation.

🍓 NOTES 🍓

A program binary may fail to load if the implementation determines that there has been a change in hardware or software configuration from when the program binary was produced such as having been compiled with an incompatible or outdated version of the compiler. So like, if the compiler woke up different that day, the binary can absolutely ghost you 🫠

💜 ASSOCIATED GETS 💜

• glGetProgram() with argument GL_PROGRAM_BINARY_LENGTH
• glGet() with argument GL_NUM_PROGRAM_BINARY_FORMATS
• glGet() with argument GL_PROGRAM_BINARY_FORMATS

👑 VERSION SUPPORT 👑

Function / Feature Name: glProgramBinary — here’s the OpenGL version vibe check, bestie:

• OpenGL 2.0 — -
• OpenGL 2.1 — -
• OpenGL 3.0 — -
• OpenGL 3.1 — -
• OpenGL 3.2 — -
• OpenGL 3.3 — -
• OpenGL 4.0 — -
• OpenGL 4.1 — ✔
• OpenGL 4.2 — ✔
• OpenGL 4.3 — ✔
• OpenGL 4.4 — ✔
• OpenGL 4.5 — ✔

🔥 SEE ALSO 🔥

• glGetProgram()
• glGetProgramBinary()

💖 COPYRIGHT 💖

Copyright © 2010-2014 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.

💖 COPYRIGHT 💖

Copyright © 2010-2014 Khronos Group.

---

xoxo, your GLPROGRAMBINARY(3G) bestie 💖 — source: [FIXME: source], date: 08/09/2021, manual tag: GLPROGRAMBINARY(3G). periodt ✨