mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-11-10 13:07:26 +01:00
90 lines
3.0 KiB
Go
90 lines
3.0 KiB
Go
// SPDX-License-Identifier: MIT
|
|
|
|
// Copyright (c) 2010 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 (c) 1991-2006 Silicon Graphics, Inc.
|
|
// This document is licensed under the SGI Free Software B License.
|
|
// For details, see http://oss.sgi.com/projects/FreeB.
|
|
|
|
//go:build !js
|
|
// +build !js
|
|
|
|
// Package gl implements Go bindings to OpenGL.
|
|
package gl
|
|
|
|
const (
|
|
ALWAYS = 0x0207
|
|
ARRAY_BUFFER = 0x8892
|
|
BLEND = 0x0BE2
|
|
CLAMP_TO_EDGE = 0x812F
|
|
COLOR_ATTACHMENT0 = 0x8CE0
|
|
COMPILE_STATUS = 0x8B81
|
|
DEPTH24_STENCIL8 = 0x88F0
|
|
DYNAMIC_DRAW = 0x88E8
|
|
ELEMENT_ARRAY_BUFFER = 0x8893
|
|
FALSE = 0
|
|
FLOAT = 0x1406
|
|
FRAGMENT_SHADER = 0x8B30
|
|
FRAMEBUFFER = 0x8D40
|
|
FRAMEBUFFER_BINDING = 0x8CA6
|
|
FRAMEBUFFER_COMPLETE = 0x8CD5
|
|
INFO_LOG_LENGTH = 0x8B84
|
|
INVERT = 0x150A
|
|
KEEP = 0x1E00
|
|
LINK_STATUS = 0x8B82
|
|
MAX_TEXTURE_SIZE = 0x0D33
|
|
NEAREST = 0x2600
|
|
NO_ERROR = 0
|
|
NOTEQUAL = 0x0205
|
|
PIXEL_PACK_BUFFER = 0x88EB
|
|
PIXEL_UNPACK_BUFFER = 0x88EC
|
|
READ_WRITE = 0x88BA
|
|
RENDERBUFFER = 0x8D41
|
|
RGBA = 0x1908
|
|
SHORT = 0x1402
|
|
STENCIL_ATTACHMENT = 0x8D20
|
|
STENCIL_BUFFER_BIT = 0x0400
|
|
STENCIL_TEST = 0x0B90
|
|
STREAM_DRAW = 0x88E0
|
|
TEXTURE0 = 0x84C0
|
|
TEXTURE_2D = 0x0DE1
|
|
TEXTURE_MAG_FILTER = 0x2800
|
|
TEXTURE_MIN_FILTER = 0x2801
|
|
TEXTURE_WRAP_S = 0x2802
|
|
TEXTURE_WRAP_T = 0x2803
|
|
TRIANGLES = 0x0004
|
|
TRUE = 1
|
|
SCISSOR_TEST = 0x0C11
|
|
UNPACK_ALIGNMENT = 0x0CF5
|
|
UNSIGNED_BYTE = 0x1401
|
|
UNSIGNED_SHORT = 0x1403
|
|
VERTEX_SHADER = 0x8B31
|
|
WRITE_ONLY = 0x88B9
|
|
)
|
|
|
|
// Init initializes the OpenGL bindings by loading the function pointers (for
|
|
// each OpenGL function) from the active OpenGL context.
|
|
//
|
|
// It must be called under the presence of an active OpenGL context, e.g.,
|
|
// always after calling window.MakeContextCurrent() and always before calling
|
|
// any OpenGL functions exported by this package.
|
|
//
|
|
// On Windows, Init loads pointers that are context-specific (and hence you
|
|
// must re-init if switching between OpenGL contexts, although not calling Init
|
|
// again after switching between OpenGL contexts may work if the contexts belong
|
|
// to the same graphics driver/device).
|
|
//
|
|
// On macOS and the other POSIX systems, the behavior is different, but code
|
|
// written compatible with the Windows behavior is compatible with macOS and the
|
|
// other POSIX systems. That is, always Init under an active OpenGL context, and
|
|
// always re-init after switching graphics contexts.
|
|
//
|
|
// For information about caveats of Init, you should read the "Platform Specific
|
|
// Function Retrieval" section of https://www.opengl.org/wiki/Load_OpenGL_Functions.
|
|
func Init() error {
|
|
return InitWithProcAddrFunc(getProcAddress)
|
|
}
|