2025-02-25 15:56:00 +02:00
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#+build linux
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2024-01-19 23:55:07 +02:00
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package glx
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import x11 "vendor:x11/xlib"
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foreign import glx "system:GL"
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2024-01-21 18:47:15 +02:00
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#assert(size_of(__FBConfigRec) == 232)
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2024-01-19 23:55:07 +02:00
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@private
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__FBConfigRec :: struct {
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visualType: i32,
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transparentType: i32,
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transparentRed, transparentGreen, transparentBlue, transparentAlpha: i32,
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transparentIndex: i32,
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visualCaveat: i32,
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associatedVisualId: i32,
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screen: i32,
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drawableType: i32,
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renderType: i32,
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maxPbufferWidth, maxPbufferHeight, maxPbufferPixels: i32,
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optimalPbufferWidth, optimalPbufferHeight: i32, /* for SGIX_pbuffer */
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visualSelectGroup: i32, /* visuals grouped by select priority */
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id: u32,
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rgbMode: b8,
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colorIndexMode: b8,
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doubleBufferMode: b8,
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stereoMode: b8,
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haveAccumBuffer: b8,
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haveDepthBuffer: b8,
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haveStencilBuffer: b8,
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/* The number of bits present in various buffers */
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accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits: i32,
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depthBits: i32,
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stencilBits: i32,
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indexBits: i32,
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redBits, greenBits, blueBits, alphaBits: i32,
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redMask, greenMask, blueMask, alphaMask: u32,
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multiSampleSize: u32,/* Number of samples per pixel (0 if no ms) */
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nMultiSampleBuffers: u32,/* Number of available ms buffers */
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maxAuxBuffers: i32,
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/* frame buffer level */
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level: i32,
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/* color ranges (for SGI_color_range) */
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extendedRange: b8,
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minRed, maxRed: f64,
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minGreen, maxGreen: f64,
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minBlue, maxBlue: f64,
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minAlpha, maxAlpha: f64,
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}
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// apparently this isn't defined anywhere ???
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// so we define a minimal one according to this
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// https://dri.freedesktop.org/docs/gallium/glxapi_8h-source.html
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// see also: https://github.com/Tarnyko/EGLX/blob/b82af86a8a0daf3408fb7a6e7b07b02b01476626/EGLX.h#L280
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@private
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__ContextRec :: struct {
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currentDpy: ^x11.Display,
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isDirect: b8,
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currentDrawable: Drawable,
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currentReadable: Drawable,
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xid: x11.XID
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}
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FBConfig :: ^__FBConfigRec
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Context :: ^__ContextRec
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foreign glx {
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@(link_name = "glXGetProcAddressARB")
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GetProcAddressARB :: proc(name: ^u8) -> rawptr ---
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@(link_name = "glXSwapBuffers")
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SwapBuffers :: proc(display: ^x11.Display, drawable: Drawable) ---
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@(link_name = "glXQueryVersion")
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QueryVersion :: proc(display: ^x11.Display, major: ^i32, minor: ^i32) -> bool ---
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@(link_name = "glXChooseFBConfig")
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ChooseFBConfig :: proc(display: ^x11.Display, screen: i32, attrib_list: ^i32, nelements: ^i32) -> [^]FBConfig ---
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@(link_name = "glXCreateContextAttribsARB")
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CreateContextAttribsARB :: proc(display: ^x11.Display, config: FBConfig, share_context: Context, direct: bool, attrib_list: ^i32) -> Context ---
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@(link_name = "glXDestroyContext")
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DestroyContext :: proc(display: ^x11.Display, ctx: Context) ---
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@(link_name = "glXSwapIntervalEXT")
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SwapIntervalEXT :: proc(display: ^x11.Display, drawable: Drawable, interval: i32) -> bool ---
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@(link_name = "glXMakeCurrent")
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MakeCurrent :: proc(display: ^x11.Display, drawable: Drawable, ctx: Context) -> bool ---
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}
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