new workspace

wgui/src/renderer_vk/shaders/text.vert

@@ -0,0 +1,61 @@
+#version 450
+#extension GL_GOOGLE_include_directive : enable
+
+precision highp float;
+
+layout(location = 0) in uint in_model_idx;
+layout(location = 1) in uint in_rect_dim;
+layout(location = 2) in uint in_uv;
+layout(location = 3) in uint in_color;
+layout(location = 4) in uint in_content_type;
+layout(location = 5) in float depth;
+layout(location = 7) in float scale;
+
+layout(location = 0) out vec4 out_color;
+layout(location = 1) out vec2 out_uv;
+layout(location = 2) flat out uint out_content_type;
+
+layout(set = 0, binding = 0) uniform sampler2D color_atlas;
+layout(set = 1, binding = 0) uniform sampler2D mask_atlas;
+
+#define UNIFORM_PARAMS_SET 2
+#define MODEL_BUFFER_SET 3
+
+#include "model_buffer.glsl"
+#include "uniform.glsl"
+
+void main() {
+  uint v = uint(gl_VertexIndex); // 0-3
+  uint rect_width = in_rect_dim & 0xffffu;
+  uint rect_height = (in_rect_dim & 0xffff0000u) >> 16u;
+  vec2 rect_size = vec2(float(rect_width), float(rect_height));
+  float rect_aspect = rect_size.x / rect_size.y;
+
+  uvec2 uv = uvec2(in_uv & 0xffffu, (in_uv & 0xffff0000u) >> 16u);
+
+  uvec2 corner_pos_u = uvec2(v & 1u, (v >> 1u) & 1u);
+  vec2 corner_pos = vec2(corner_pos_u);
+  uvec2 corner_offset = uvec2(rect_width, rect_height) * corner_pos_u;
+  uv = uv + corner_offset;
+
+  mat4 model_matrix = model_buffer.models[in_model_idx];
+
+  gl_Position =
+      uniforms.projection * model_matrix * vec4(corner_pos * scale, depth, 1.0);
+
+  out_content_type = in_content_type & 0xffffu;
+
+  out_color = vec4(float((in_color & 0x00ff0000u) >> 16u) / 255.0,
+                   float((in_color & 0x0000ff00u) >> 8u) / 255.0,
+                   float(in_color & 0x000000ffu) / 255.0,
+                   float((in_color & 0xff000000u) >> 24u) / 255.0);
+
+  uvec2 dim = uvec2(0, 0);
+  if (in_content_type == 0u) {
+    dim = uvec2(textureSize(color_atlas, 0));
+  } else {
+    dim = uvec2(textureSize(mask_atlas, 0));
+  }
+
+  out_uv = vec2(uv) / vec2(dim);
+}