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Fix some issues with mt_opengl

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sfan5 2024-11-24 18:00:25 +01:00
parent 1fb7202028
commit a799a54894
3 changed files with 46 additions and 24 deletions
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39
irr/scripts/BindingGenerator.lua
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@ -219,11 +219,11 @@ local function ParseHeader( path, into, apiRegex, defs, consts, nameSet, noNewNa
};
end
elseif ( line:find( "#" ) and not line:find( "#include" ) ) then
local rawName, value = line:match( "#define%s+GL_([_%w]+)%s+0x(%w+)" );
local rawName, value = line:match( "#define%s+GL_([_%w]+)%s+(0x%w+)" );
if rawName and value then
local name, vendor = StripVendorSuffix( rawName, true );
if not constBanned[vendor] then
consts:Add{ name = name, vendor = vendor, value = "0x"..value };
consts:Add{ name = name, vendor = vendor, value = value };
end
end
::skip::
@ -359,21 +359,28 @@ f:write[[
#ifndef APIENTRYP
#define APIENTRYP APIENTRY *
#endif
#ifndef GLAPI
#define GLAPI extern
// undefine a few names that can easily clash with system headers
#ifdef NO_ERROR
#undef NO_ERROR
#endif
#ifdef ZERO
#undef ZERO
#endif
#ifdef ONE
#undef ONE
#endif
]];
f:write[[
class OpenGLProcedures {
class OpenGLProcedures final {
private:
]];
f:write( definitions:Concat( "\n" ) );
f:write( "\n" );
-- The script will miss this particular typedef thinking it's a PFN,
-- so we have to paste it in manually. It's the only such type in OpenGL.
f:write[[
// The script will miss this particular typedef thinking it's a PFN,
// so we have to paste it in manually. It's the only such type in OpenGL.
typedef void (APIENTRY *GLDEBUGPROC)
(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam);
@ -382,10 +389,12 @@ f:write( typedefs:Concat( "\n" ) );
f:write( "\n\n" );
f:write [[
std::unordered_set<std::string> extensions;
public:
// Call this once after creating the context.
void LoadAllProcedures(irr::video::IContextManager *cmgr);
// Check if an extension is supported.
/// Check if an extension is supported.
/// @param ext full extension name e.g. "GL_KHR_no_error"
inline bool IsExtensionPresent(const std::string &ext) const
{
return extensions.count(ext) > 0;
@ -396,7 +405,10 @@ f:write( pointers:Concat( "\n" ) );
f:write( "\n\n" );
f:write( cppConsts:Concat( "\n" ) );
f:write( "\n\n" );
-- We filter constants not in hex format to avoid the VERSION_X_X and extension
-- defines, but that means we miss these.
f:write[[
static constexpr const GLenum NO_ERROR = 0;
static constexpr const GLenum ZERO = 0;
static constexpr const GLenum ONE = 1;
static constexpr const GLenum NONE = 0;
@ -416,7 +428,7 @@ f:write[[
#include <string>
#include <sstream>
OpenGLProcedures GL = OpenGLProcedures();
OpenGLProcedures GL;
void OpenGLProcedures::LoadAllProcedures(irr::video::IContextManager *cmgr)
{
@ -425,9 +437,11 @@ void OpenGLProcedures::LoadAllProcedures(irr::video::IContextManager *cmgr)
f:write( loader:Concat() );
f:write[[
// OpenGL 3 way to enumerate extensions
/* OpenGL 3 & ES 3 way to enumerate extensions */
GLint ext_count = 0;
GetIntegerv(NUM_EXTENSIONS, &ext_count);
// clear error which is raised if unsupported
while (GetError() != GL.NO_ERROR) {}
extensions.reserve(ext_count);
for (GLint k = 0; k < ext_count; k++) {
auto tmp = GetStringi(EXTENSIONS, k);
@ -437,16 +451,15 @@ f:write[[
if (!extensions.empty())
return;
// OpenGL 2 / ES 2 way to enumerate extensions
/* OpenGL 2 / ES 2 way to enumerate extensions */
auto ext_str = GetString(EXTENSIONS);
if (!ext_str)
return;
// get the extension string, chop it up
std::stringstream ext_ss((char*)ext_str);
std::istringstream ext_ss((char*)ext_str);
std::string tmp;
while (std::getline(ext_ss, tmp, ' '))
extensions.emplace(tmp);
}
]];
f:close();