60 lines
No EOL
1.8 KiB
Python
60 lines
No EOL
1.8 KiB
Python
from glad.lang.common.loader import BaseLoader
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from glad.lang.volt.loader import LOAD_OPENGL_DLL
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from glad.lang.d.loader.gl import _OPENGL_HAS_EXT as _D_OPENGL_HAS_EXT
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_OPENGL_LOADER = \
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LOAD_OPENGL_DLL % {'pre':'private', 'init':'open_gl',
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'proc':'get_proc', 'terminate':'close_gl'} + '''
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bool gladLoadGL() {
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StructToDg structToDg;
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structToDg.func = cast(void*)get_proc;
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auto dg = *cast(Loader*)&structToDg;
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bool status = false;
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if(open_gl()) {
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status = gladLoadGL(dg);
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close_gl();
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}
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return status;
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}
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'''
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_OPENGL_HAS_EXT = (
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'global int GL_MAJOR = 0;\nglobal int GL_MINOR = 0;' +
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'\n'.join(l for l in _D_OPENGL_HAS_EXT.replace('@nogc', '').splitlines() if 'struct' not in l)
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.replace('GLVersion.major', 'GL_MAJOR') +
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'\n\n'
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)
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class OpenGLVoltLoader(BaseLoader):
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def write_header_end(self, fobj):
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pass
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def write_header(self, fobj):
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pass
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def write(self, fobj):
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fobj.write('import watt.library;\n')
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if not self.disabled and 'gl' in self.apis:
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fobj.write(_OPENGL_LOADER)
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def write_begin_load(self, fobj):
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fobj.write('\tglGetString = cast(typeof(glGetString))load("glGetString");\n')
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fobj.write('\tif(glGetString is null) { return false; }\n')
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fobj.write('\tif(glGetString(GL_VERSION) is null) { return false; }\n\n')
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def write_end_load(self, fobj):
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fobj.write('\treturn GL_MAJOR != 0 || GL_MINOR != 0;\n')
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def write_find_core(self, fobj):
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fobj.write('\tconst(char)* v = cast(const(char)*)glGetString(GL_VERSION);\n')
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fobj.write('\tint major = v[0] - \'0\';\n')
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fobj.write('\tint minor = v[2] - \'0\';\n')
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fobj.write('\tGL_MAJOR = major; GL_MINOR = minor;\n')
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def write_has_ext(self, fobj):
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fobj.write(_OPENGL_HAS_EXT) |