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vulkan: implement software rendering

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This commit is contained in:
Julian Orth 2025-07-27 21:03:18 +02:00
parent bb29303c98
commit 0a5ee8fa36
10 changed files with 140 additions and 31 deletions
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19
src/gfx_apis/gl/egl/display.rs
View file

@ -5,7 +5,7 @@ use {
gfx_apis::gl::{
RenderError,
egl::{
PROCS,
EXTS, PROCS,
context::EglContext,
image::EglImage,
sys::{
@ -26,9 +26,10 @@ use {
},
ext::{
ANDROID_NATIVE_FENCE_SYNC, DisplayExt, EXT_CREATE_CONTEXT_ROBUSTNESS,
EXT_IMAGE_DMA_BUF_IMPORT_MODIFIERS, GL_OES_EGL_IMAGE, GL_OES_EGL_IMAGE_EXTERNAL,
GlExt, KHR_FENCE_SYNC, KHR_IMAGE_BASE, KHR_NO_CONFIG_CONTEXT,
KHR_SURFACELESS_CONTEXT, KHR_WAIT_SYNC, MESA_CONFIGLESS_CONTEXT, get_display_ext,
EXT_DEVICE_QUERY, EXT_IMAGE_DMA_BUF_IMPORT_MODIFIERS, GL_OES_EGL_IMAGE,
GL_OES_EGL_IMAGE_EXTERNAL, GlExt, KHR_FENCE_SYNC, KHR_IMAGE_BASE,
KHR_NO_CONFIG_CONTEXT, KHR_SURFACELESS_CONTEXT, KHR_WAIT_SYNC,
MESA_CONFIGLESS_CONTEXT, MESA_DEVICE_SOFTWARE, get_device_ext, get_display_ext,
get_gl_ext,
},
proc::ExtProc,
@ -70,7 +71,10 @@ pub struct EglDisplay {
}
impl EglDisplay {
pub(in crate::gfx_apis::gl) fn create(drm: &Drm) -> Result<Rc<Self>, RenderError> {
pub(in crate::gfx_apis::gl) fn create(
drm: &Drm,
software: bool,
) -> Result<Rc<Self>, RenderError> {
unsafe {
let Some(egl) = EGL.as_ref() else {
return Err(RenderError::LoadEgl);
@ -108,6 +112,11 @@ impl EglDisplay {
if (egl.eglInitialize)(dpy.dpy, &mut major, &mut minor) != EGL_TRUE {
return Err(RenderError::Initialize);
}
if !software && EXTS.contains(EXT_DEVICE_QUERY) {
if get_device_ext(procs, dpy.dpy)?.contains(MESA_DEVICE_SOFTWARE) {
return Err(RenderError::NoHardwareRenderer);
}
}
dpy.exts = get_display_ext(dpy.dpy);
if !dpy.exts.intersects(KHR_IMAGE_BASE) {
return Err(RenderError::ImageBase);

2
src/gfx_apis/gl/egl/sys.rs
View file

@ -14,6 +14,7 @@ egl_transparent!(EGLImageKHR);
egl_transparent!(EGLContext);
egl_transparent!(EGLClientBuffer);
egl_transparent!(EGLLabelKHR);
egl_transparent!(EGLDeviceEXT);
pub type EGLDEBUGPROCKHR = unsafe extern "C" fn(
error: EGLenum,
@ -53,6 +54,7 @@ pub const EGL_PLATFORM_GBM_KHR: EGLint = 0x31D7;
pub const EGL_CONTEXT_CLIENT_VERSION: EGLint = 0x3098;
pub const EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_EXT: EGLint = 0x3138;
pub const EGL_LOSE_CONTEXT_ON_RESET_EXT: EGLint = 0x31BF;
pub const EGL_DEVICE_EXT: EGLint = 0x322C;
pub const GL_GUILTY_CONTEXT_RESET_ARB: GLenum = 0x8253;
pub const GL_INNOCENT_CONTEXT_RESET_ARB: GLenum = 0x8254;