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add gl function loading

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This commit is contained in:
Matthew 2026-05-17 15:43:10 +10:00
parent edaacc9665
commit 9f2b7d84dc
3 changed files with 69 additions and 1 deletions
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2
dlib/platform.d
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@ -842,6 +842,8 @@ CreateWindow(
} }
glXMakeCurrent(window.display, window.window, context); glXMakeCurrent(window.display, window.window, context);
GLLoadFuncs();
} }
return true; return true;

62
opengl/opengl.d
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@ -14,6 +14,68 @@ else
public import glenum; public import glenum;
__gshared bool FUNCS_LOADED = false;
version(linux)
{
alias GLLoadFunc = glXGetProcAddressARB;
}
else static assert(false, "GL function loader alias not set for platform");
bool
GLLoadFuncs()
{
glDeleteRenderbuffers = cast(typeof(glDeleteRenderbuffers))GLLoadFunc(cast(u8*)"glDeleteRenderbuffers".ptr);
glGenRenderbuffers = cast(typeof(glGenRenderbuffers))GLLoadFunc(cast(u8*)"glGenRenderbuffers".ptr);
glGenVertexArrays = cast(typeof(glGenVertexArrays))GLLoadFunc(cast(u8*)"glGenVertexArrays".ptr);
glDeleteVertexArrays = cast(typeof(glDeleteVertexArrays))GLLoadFunc(cast(u8*)"glDeleteVertexArrays".ptr);
glGenBuffers = cast(typeof(glGenBuffers))GLLoadFunc(cast(u8*)"glGenBuffers".ptr);
glCompileShader = cast(typeof(glCompileShader))GLLoadFunc(cast(u8*)"glCompileShader".ptr);
glUseProgram = cast(typeof(glUseProgram))GLLoadFunc(cast(u8*)"glUseProgram".ptr);
glValidateProgram = cast(typeof(glValidateProgram))GLLoadFunc(cast(u8*)"glValidateProgram".ptr);
glBindBufferBase = cast(typeof(glBindBufferBase))GLLoadFunc(cast(u8*)"glBindBufferBase".ptr);
glGetUniformBlockIndex = cast(typeof(glGetUniformBlockIndex))GLLoadFunc(cast(u8*)"glGetUniformBlockIndex".ptr);
glEnableVertexAttribArray = cast(typeof(glEnableVertexAttribArray))GLLoadFunc(cast(u8*)"glEnableVertexAttribArray".ptr);
glDisableVertexAttribArray = cast(typeof(glDisableVertexAttribArray))GLLoadFunc(cast(u8*)"glDisableVertexAttribArray".ptr);
glBlendFuncSeparate = cast(typeof(glBlendFuncSeparate))GLLoadFunc(cast(u8*)"glBlendFuncSeparate".ptr);
glBindVertexArray = cast(typeof(glBindVertexArray))GLLoadFunc(cast(u8*)"glBindVertexArray".ptr);
glBindBuffer = cast(typeof(glBindBuffer))GLLoadFunc(cast(u8*)"glBindBuffer".ptr);
glBufferData = cast(typeof(glBufferData))GLLoadFunc(cast(u8*)"glBufferData".ptr);
glBufferSubData = cast(typeof(glBufferSubData))GLLoadFunc(cast(u8*)"glBufferSubData".ptr);
glVertexAttribDivisor = cast(typeof(glVertexAttribDivisor))GLLoadFunc(cast(u8*)"glVertexAttribDivisor".ptr);
glVertexAttribPointer = cast(typeof(glVertexAttribPointer))GLLoadFunc(cast(u8*)"glVertexAttribPointer".ptr);
glDrawArraysInstanced = cast(typeof(glDrawArraysInstanced))GLLoadFunc(cast(u8*)"glDrawArraysInstanced".ptr);
glDrawElementsInstanced = cast(typeof(glDrawElementsInstanced))GLLoadFunc(cast(u8*)"glDrawElementsInstanced".ptr);
glGetUniformLocation = cast(typeof(glGetUniformLocation))GLLoadFunc(cast(u8*)"glGetUniformLocation".ptr);
glUniform1f = cast(typeof(glUniform1f))GLLoadFunc(cast(u8*)"glUniform1f".ptr);
glUniform2f = cast(typeof(glUniform2f))GLLoadFunc(cast(u8*)"glUniform2f".ptr);
glUniform3f = cast(typeof(glUniform3f))GLLoadFunc(cast(u8*)"glUniform3f".ptr);
glUniform4f = cast(typeof(glUniform4f))GLLoadFunc(cast(u8*)"glUniform4f".ptr);
glUniform1i = cast(typeof(glUniform1i))GLLoadFunc(cast(u8*)"glUniform1i".ptr);
glUniform2i = cast(typeof(glUniform2i))GLLoadFunc(cast(u8*)"glUniform2i".ptr);
glUniform3i = cast(typeof(glUniform3i))GLLoadFunc(cast(u8*)"glUniform3i".ptr);
glUniform4i = cast(typeof(glUniform4i))GLLoadFunc(cast(u8*)"glUniform4i".ptr);
glCreateProgram = cast(typeof(glCreateProgram))GLLoadFunc(cast(u8*)"glCreateProgram".ptr);
glCreateShader = cast(typeof(glCreateShader))GLLoadFunc(cast(u8*)"glCreateShader".ptr);
glDeleteFramebuffers = cast(typeof(glDeleteFramebuffers))GLLoadFunc(cast(u8*)"glDeleteFramebuffers".ptr);
glDeleteProgram = cast(typeof(glDeleteProgram))GLLoadFunc(cast(u8*)"glDeleteProgram".ptr);
glDeleteShader = cast(typeof(glDeleteShader))GLLoadFunc(cast(u8*)"glDeleteShader".ptr);
glShaderSource = cast(typeof(glShaderSource))GLLoadFunc(cast(u8*)"glShaderSource".ptr);
glGetProgramiv = cast(typeof(glGetProgramiv))GLLoadFunc(cast(u8*)"glGetProgramiv".ptr);
glGetProgramInfoLog = cast(typeof(glGetProgramInfoLog))GLLoadFunc(cast(u8*)"glGetProgramInfoLog".ptr);
glGetShaderiv = cast(typeof(glGetShaderiv))GLLoadFunc(cast(u8*)"glGetShaderiv".ptr);
glGetShaderInfoLog = cast(typeof(glGetShaderInfoLog))GLLoadFunc(cast(u8*)"glGetShaderInfoLog".ptr);
glAttachShader = cast(typeof(glAttachShader))GLLoadFunc(cast(u8*)"glAttachShader".ptr);
glLinkProgram = cast(typeof(glLinkProgram))GLLoadFunc(cast(u8*)"glLinkProgram".ptr);
static if(!__traits(compiles, { glActiveTexture(0x84C0); }))
{
glActiveTexture = cast(typeof(glActiveTexture))GLLoadFunc(cast(u8*)"glActiveTexture".ptr);
}
return glDeleteRenderbuffers != null;
}
u32 u32
GLCreateShader(GLEnum shader_type, string[] shader_src) GLCreateShader(GLEnum shader_type, string[] shader_src)
{ {

6
opengl/opengl_native.d
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@ -26,7 +26,6 @@ PFNGLVERTEXATTRIBDIVISORPROC glVertexAttribDivisor;
PFNGLVERTEXATTRIBPOINTERPROC glVertexAttribPointer; PFNGLVERTEXATTRIBPOINTERPROC glVertexAttribPointer;
PFNGLDRAWARRAYSINSTANCEDPROC glDrawArraysInstanced; PFNGLDRAWARRAYSINSTANCEDPROC glDrawArraysInstanced;
PFNGLDRAWELEMENTSINSTANCEDPROC glDrawElementsInstanced; PFNGLDRAWELEMENTSINSTANCEDPROC glDrawElementsInstanced;
PFNGLACTIVETEXTUREPROC glActiveTexture;
PFNGLGETUNIFORMLOCATIONPROC glGetUniformLocation; PFNGLGETUNIFORMLOCATIONPROC glGetUniformLocation;
PFNGLUNIFORM1FPROC glUniform1f; PFNGLUNIFORM1FPROC glUniform1f;
PFNGLUNIFORM2FPROC glUniform2f; PFNGLUNIFORM2FPROC glUniform2f;
@ -48,3 +47,8 @@ PFNGLGETSHADERIVPROC glGetShaderiv;
PFNGLGETSHADERINFOLOGPROC glGetShaderInfoLog; PFNGLGETSHADERINFOLOGPROC glGetShaderInfoLog;
PFNGLATTACHSHADERPROC glAttachShader; PFNGLATTACHSHADERPROC glAttachShader;
PFNGLLINKPROGRAMPROC glLinkProgram; PFNGLLINKPROGRAMPROC glLinkProgram;
static if(!__traits(compiles, { glActiveTexture(0x84C0); }))
{
PFNGLACTIVETEXTUREPROC glActiveTexture;
}