vulkan: add legacy shaders

build/vulkan.rs

@@ -15,16 +15,22 @@ pub fn main() -> anyhow::Result<()> {
     compile_simple("tex.frag")?;
     compile_simple("out.vert")?;
     compile_simple("out.frag")?;
+    compile_simple("legacy/fill.frag")?;
+    compile_simple("legacy/fill.vert")?;
+    compile_simple("legacy/tex.vert")?;
+    compile_simple("legacy/tex.frag")?;
     Ok(())
 }
 
 fn compile_simple(name: &str) -> anyhow::Result<()> {
-    compile_shader(name, &format!("{name}.spv"), None).with_context(|| name.to_string())
+    let out = format!("{name}.spv").replace("/", "_");
+    compile_shader(name, &out).with_context(|| name.to_string())
 }
 
-fn compile_shader(name: &str, out: &str, options: Option<CompileOptions>) -> anyhow::Result<()> {
-    let read = |path: &str| std::fs::read_to_string(format!("{}/{}", ROOT, path));
-    let mut options = options.unwrap_or_else(|| CompileOptions::new().unwrap());
+fn compile_shader(name: &str, out: &str) -> anyhow::Result<()> {
+    let root = Path::new(ROOT).join(Path::new(name).parent().unwrap());
+    let read = |path: &str| std::fs::read_to_string(root.join(path));
+    let mut options = CompileOptions::new().unwrap();
     options.set_include_callback(|name, _, _, _| {
         Ok(ResolvedInclude {
             resolved_name: name.to_string(),
@@ -40,7 +46,7 @@ fn compile_shader(name: &str, out: &str, options: Option<CompileOptions>) -> any
         "vert" => shaderc::ShaderKind::Vertex,
         n => bail!("Unknown shader stage {}", n),
     };
-    let src = read(name)?;
+    let src = std::fs::read_to_string(format!("{}/{}", ROOT, name))?;
     let compiler = shaderc::Compiler::new().unwrap();
     let binary = compiler
         .compile_into_spirv(&src, stage, name, "main", Some(&options))

src/gfx_apis/vulkan/renderer.rs

@@ -22,8 +22,9 @@ use {
             sampler::VulkanSampler,
             semaphore::VulkanSemaphore,
             shaders::{
-                FILL_FRAG, FILL_VERT, FillPushConstants, OUT_FRAG, OUT_VERT, OutPushConstants,
-                TEX_FRAG, TEX_VERT, TexPushConstants, VulkanShader,
+                FILL_FRAG, FILL_VERT, FillPushConstants, LEGACY_FILL_FRAG, LEGACY_FILL_VERT,
+                LEGACY_TEX_FRAG, LEGACY_TEX_VERT, OUT_FRAG, OUT_VERT, OutPushConstants, TEX_FRAG,
+                TEX_VERT, TexPushConstants, VulkanShader,
             },
         },
         io_uring::IoUring,
@@ -195,8 +196,21 @@ impl VulkanDevice {
         eng: &Rc<AsyncEngine>,
         ring: &Rc<IoUring>,
     ) -> Result<Rc<VulkanRenderer>, VulkanError> {
-        let fill_vert_shader = self.create_shader(FILL_VERT)?;
-        let fill_frag_shader = self.create_shader(FILL_FRAG)?;
+        let fill_vert_shader;
+        let fill_frag_shader;
+        let tex_vert_shader;
+        let tex_frag_shader;
+        if self.descriptor_buffer.is_some() {
+            tex_vert_shader = self.create_shader(TEX_VERT)?;
+            tex_frag_shader = self.create_shader(TEX_FRAG)?;
+            fill_vert_shader = self.create_shader(FILL_VERT)?;
+            fill_frag_shader = self.create_shader(FILL_FRAG)?;
+        } else {
+            tex_vert_shader = self.create_shader(LEGACY_TEX_VERT)?;
+            tex_frag_shader = self.create_shader(LEGACY_TEX_FRAG)?;
+            fill_vert_shader = self.create_shader(LEGACY_FILL_VERT)?;
+            fill_frag_shader = self.create_shader(LEGACY_FILL_FRAG)?;
+        }
         let sampler = self.create_sampler()?;
         let tex_descriptor_set_layout = self.create_tex_descriptor_set_layout(&sampler)?;
         let out_descriptor_set_layout = self
@@ -206,8 +220,6 @@ impl VulkanDevice {
             .transpose()?;
         let out_vert_shader = self.create_shader(OUT_VERT)?;
         let out_frag_shader = self.create_shader(OUT_FRAG)?;
-        let tex_vert_shader = self.create_shader(TEX_VERT)?;
-        let tex_frag_shader = self.create_shader(TEX_FRAG)?;
         let gfx_command_buffers = self.create_command_pool(self.graphics_queue_idx)?;
         let transfer_command_buffers = self
             .distinct_transfer_queue_family_idx

src/gfx_apis/vulkan/shaders.rs

@@ -11,6 +11,12 @@ pub const TEX_VERT: &[u8] = include_bytes!(concat!(env!("OUT_DIR"), "/tex.vert.s
 pub const TEX_FRAG: &[u8] = include_bytes!(concat!(env!("OUT_DIR"), "/tex.frag.spv"));
 pub const OUT_VERT: &[u8] = include_bytes!(concat!(env!("OUT_DIR"), "/out.vert.spv"));
 pub const OUT_FRAG: &[u8] = include_bytes!(concat!(env!("OUT_DIR"), "/out.frag.spv"));
+pub const LEGACY_FILL_VERT: &[u8] =
+    include_bytes!(concat!(env!("OUT_DIR"), "/legacy_fill.vert.spv"));
+pub const LEGACY_FILL_FRAG: &[u8] =
+    include_bytes!(concat!(env!("OUT_DIR"), "/legacy_fill.frag.spv"));
+pub const LEGACY_TEX_VERT: &[u8] = include_bytes!(concat!(env!("OUT_DIR"), "/legacy_tex.vert.spv"));
+pub const LEGACY_TEX_FRAG: &[u8] = include_bytes!(concat!(env!("OUT_DIR"), "/legacy_tex.frag.spv"));
 
 pub struct VulkanShader {
     pub(super) device: Rc<VulkanDevice>,

src/gfx_apis/vulkan/shaders/legacy/fill.common.glsl

@@ -0,0 +1,4 @@
+layout(push_constant, std430) uniform Data {
+	layout(offset = 0) vec2 pos[4];
+	layout(offset = 32) vec4 color;
+} data;

src/gfx_apis/vulkan/shaders/legacy/fill.frag

@@ -0,0 +1,10 @@
+#version 450
+
+#include "../frag_spec_const.glsl"
+#include "fill.common.glsl"
+
+layout(location = 0) out vec4 out_color;
+
+void main() {
+	out_color = data.color;
+}

src/gfx_apis/vulkan/shaders/legacy/fill.vert

@@ -0,0 +1,16 @@
+#version 450
+//#extension GL_EXT_debug_printf : enable
+
+#include "fill.common.glsl"
+
+void main() {
+	vec2 pos;
+	switch (gl_VertexIndex) {
+		case 0: pos = data.pos[0]; break;
+		case 1: pos = data.pos[1]; break;
+		case 2: pos = data.pos[2]; break;
+		case 3: pos = data.pos[3]; break;
+	}
+	gl_Position = vec4(pos, 0.0, 1.0);
+//	debugPrintfEXT("gl_Position = %v4f", gl_Position);
+}

src/gfx_apis/vulkan/shaders/legacy/tex.common.glsl

@@ -0,0 +1,5 @@
+layout(push_constant, std430) uniform Data {
+	layout(offset = 0) vec2 pos[4];
+	layout(offset = 32) vec2 tex_pos[4];
+	layout(offset = 64) float mul;
+} data;

src/gfx_apis/vulkan/shaders/legacy/tex.frag

@@ -0,0 +1,20 @@
+#version 450
+
+#include "../frag_spec_const.glsl"
+#include "tex.common.glsl"
+
+layout(set = 0, binding = 0) uniform sampler2D tex;
+layout(location = 0) in vec2 tex_pos;
+layout(location = 0) out vec4 out_color;
+
+void main() {
+	vec4 c = textureLod(tex, tex_pos, 0);
+	if (has_alpha_multiplier) {
+		if (src_has_alpha) {
+			c *= data.mul;
+		} else {
+			c = vec4(c.rgb * data.mul, data.mul);
+		}
+	}
+	out_color = c;
+}

src/gfx_apis/vulkan/shaders/legacy/tex.vert

@@ -0,0 +1,18 @@
+#version 450
+//#extension GL_EXT_debug_printf : enable
+
+#include "tex.common.glsl"
+
+layout(location = 0) out vec2 tex_pos;
+
+void main() {
+	vec2 pos;
+	switch (gl_VertexIndex) {
+		case 0: pos = data.pos[0]; tex_pos = data.tex_pos[0]; break;
+		case 1: pos = data.pos[1]; tex_pos = data.tex_pos[1]; break;
+		case 2: pos = data.pos[2]; tex_pos = data.tex_pos[2]; break;
+		case 3: pos = data.pos[3]; tex_pos = data.tex_pos[3]; break;
+	}
+	gl_Position = vec4(pos, 0.0, 1.0);
+//	debugPrintfEXT("gl_Position = %v4f, tex_pos = %v2f", gl_Position, tex_pos);
+}