vulkane 0.4.0

Vulkan API bindings generated entirely from vk.xml, with a complete safe RAII wrapper covering compute and graphics: instance/device/queue, buffer, image, sampler, render pass, framebuffer, graphics + compute pipelines, swapchain, a VMA-style sub-allocator with TLSF + linear pools and defragmentation, sync primitives (fences, binary + timeline semaphores, sync2 barriers), query pools, and an optional naga GLSL/WGSL→SPIR-V feature. Supports Vulkan 1.2.175 onward — swap vk.xml and rebuild.
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// Headless-triangle vertex shader.
//
// No vertex buffer needed: gl_VertexIndex picks one of three hardcoded
// positions and matching colors. The fragment shader receives the color
// via a varying.

#version 450

layout(location = 0) out vec3 frag_color;

void main() {
    // Three positions covering most of the [-1, 1] x [-1, 1] viewport.
    vec2 positions[3] = vec2[3](
        vec2( 0.0, -0.7),
        vec2( 0.7,  0.7),
        vec2(-0.7,  0.7)
    );
    // Red, green, blue corners.
    vec3 colors[3] = vec3[3](
        vec3(1.0, 0.0, 0.0),
        vec3(0.0, 1.0, 0.0),
        vec3(0.0, 0.0, 1.0)
    );
    gl_Position = vec4(positions[gl_VertexIndex], 0.0, 1.0);
    frag_color = colors[gl_VertexIndex];
}