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internal/graphicsdriver/opengl/gl: bug fix: failed to load OpenGL(ES).framework on iOS

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This change also fixes the issue that *EXT functions are missing
in OpenGLES.framework.

Closes #2456
This commit is contained in:
Hajime Hoshi 2022-11-15 02:33:43 +09:00
parent 7d146fb70b
commit 0d8912e7ae
1 changed files with 9 additions and 2 deletions
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11
internal/graphicsdriver/opengl/gl/procaddr_darwin.go
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@ -16,6 +16,7 @@ package gl
import ( import (
"fmt" "fmt"
"strings"
"github.com/ebitengine/purego" "github.com/ebitengine/purego"
) )
@ -25,12 +26,12 @@ var (
) )
func (c *defaultContext) init() error { func (c *defaultContext) init() error {
opengl = purego.Dlopen("/System/Library/Frameworks/OpenGLES.framework/Versions/Current/OpenGLES", purego.RTLD_LAZY|purego.RTLD_GLOBAL) opengl = purego.Dlopen("OpenGLES.framework/OpenGLES", purego.RTLD_LAZY|purego.RTLD_GLOBAL)
if opengl != 0 { if opengl != 0 {
c.isES = true c.isES = true
return nil return nil
} }
opengl = purego.Dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", purego.RTLD_LAZY|purego.RTLD_GLOBAL) opengl = purego.Dlopen("OpenGL.framework/OpenGL", purego.RTLD_LAZY|purego.RTLD_GLOBAL)
if opengl != 0 { if opengl != 0 {
return nil return nil
} }
@ -38,5 +39,11 @@ func (c *defaultContext) init() error {
} }
func (c *defaultContext) getProcAddress(name string) uintptr { func (c *defaultContext) getProcAddress(name string) uintptr {
if c.isES {
const ext = "EXT"
if strings.HasSuffix(name, ext) {
name = name[:len(name)-len(ext)]
}
}
return purego.Dlsym(opengl, name) return purego.Dlsym(opengl, name)
} }