added shaders, but ran into performance issues. will need refactor

2026-07-07 17:57:25 -07:00
parent ad2e84c279
commit 85cfdaab49
12 changed files with 139 additions and 78 deletions
@@ -0,0 +1,33 @@
+#pragma once
+
+#include <stdint.h>
+
+#include "../datatypes.cpp"
+#include "../helpers.cpp"
+#include "../buffer.cpp"
+#include "shader.cpp"
+
+namespace UwU {
+  class VGradientShader {
+    public:
+      VGradientShader(uint16_t y0, Color color0, uint16_t y1, Color color1) {
+        this->y0 = y0;
+        this->shaderColor0 = color0;
+        this->scale = 0xffffffff / (1 + (uint32_t)y1 - (uint32_t)y0);
+        this->shaderColor1 = color1;
+      }
+      uint16_t y0;
+      Color shaderColor0;
+      uint32_t scale;
+      Color shaderColor1;
+
+      Color color(uint16_t u, uint16_t v) {
+      (void)u;
+      uint32_t t = (((uint32_t)v - (uint32_t)y0) * scale) / 0x01000000;
+        // if (v == 42) {
+        //   printf("(%u, %u)\n", u, t);
+        // }
+        return Helpers::lerpColor(shaderColor0, shaderColor1, (uint8_t)t);
+      }
+  };
+}