github.com/Seikaijyu/gio@v0.0.1/app/vulkan_x11.go (about)

     1  // SPDX-License-Identifier: Unlicense OR MIT
     2  
     3  //go:build ((linux && !android) || freebsd) && !nox11 && !novulkan
     4  // +build linux,!android freebsd
     5  // +build !nox11
     6  // +build !novulkan
     7  
     8  package app
     9  
    10  import (
    11  	"unsafe"
    12  
    13  	"github.com/Seikaijyu/gio/gpu"
    14  	"github.com/Seikaijyu/gio/internal/vk"
    15  )
    16  
    17  type x11VkContext struct {
    18  	win  *x11Window
    19  	inst vk.Instance
    20  	surf vk.Surface
    21  	ctx  *vkContext
    22  }
    23  
    24  func init() {
    25  	newX11VulkanContext = func(w *x11Window) (context, error) {
    26  		inst, err := vk.CreateInstance("VK_KHR_surface", "VK_KHR_xlib_surface")
    27  		if err != nil {
    28  			return nil, err
    29  		}
    30  		disp := w.display()
    31  		window, _, _ := w.window()
    32  		surf, err := vk.CreateXlibSurface(inst, unsafe.Pointer(disp), uintptr(window))
    33  		if err != nil {
    34  			vk.DestroyInstance(inst)
    35  			return nil, err
    36  		}
    37  		ctx, err := newVulkanContext(inst, surf)
    38  		if err != nil {
    39  			vk.DestroySurface(inst, surf)
    40  			vk.DestroyInstance(inst)
    41  			return nil, err
    42  		}
    43  		c := &x11VkContext{
    44  			win:  w,
    45  			inst: inst,
    46  			surf: surf,
    47  			ctx:  ctx,
    48  		}
    49  		return c, nil
    50  	}
    51  }
    52  
    53  func (c *x11VkContext) RenderTarget() (gpu.RenderTarget, error) {
    54  	return c.ctx.RenderTarget()
    55  }
    56  
    57  func (c *x11VkContext) API() gpu.API {
    58  	return c.ctx.api()
    59  }
    60  
    61  func (c *x11VkContext) Release() {
    62  	c.ctx.release()
    63  	vk.DestroySurface(c.inst, c.surf)
    64  	vk.DestroyInstance(c.inst)
    65  	*c = x11VkContext{}
    66  }
    67  
    68  func (c *x11VkContext) Present() error {
    69  	return c.ctx.present()
    70  }
    71  
    72  func (c *x11VkContext) Lock() error {
    73  	return nil
    74  }
    75  
    76  func (c *x11VkContext) Unlock() {}
    77  
    78  func (c *x11VkContext) Refresh() error {
    79  	_, w, h := c.win.window()
    80  	return c.ctx.refresh(c.surf, w, h)
    81  }