CRTP shaders on Lines

example.cpp

@@ -45,6 +45,10 @@ int main(void) {
   UwU::ColorShader green = UwU::ColorShader(UwU::Color(0x00ff00ff));
   UwU::Point point = UwU::Point(187, 37);
   point.draw(surface.buffer, green);
+
+  UwU::ColorShader blue = UwU::ColorShader(UwU::Color(0x0000ffff));
+  UwU::Trapezoid trapezoid = UwU::Trapezoid(100, 300, 690, 320, 720, 780);
+  trapezoid.draw(surface.buffer, blue);
   
   // // Benchmarking
   // struct timespec start, end;
@@ -73,20 +77,20 @@ int main(void) {
   // printf("Elapsed: %ld ns\n", timeAvg);
   
   
-  // UwU::Line lines[8] {
+  UwU::Line lines[8] {
-  //   UwU::Line(300, 100, 250, 469),
+    UwU::Line(300, 100, 250, 469),
-  //   UwU::Line(250, 100, 300, 469),
+    UwU::Line(250, 100, 300, 469),
-  //   UwU::Line(300, 100, 469, 250),
+    UwU::Line(300, 100, 469, 250),
-  //   UwU::Line(469, 100, 300, 250),
+    UwU::Line(469, 100, 300, 250),
-  //   UwU::Line(100, 300, 250, 469),
+    UwU::Line(100, 300, 250, 469),
-  //   UwU::Line(250, 300, 100, 469),
+    UwU::Line(250, 300, 100, 469),
-  //   UwU::Line(100, 300, 469, 250),
+    UwU::Line(100, 300, 469, 250),
-  //   UwU::Line(469, 300, 100, 250)
+    UwU::Line(469, 300, 100, 250)
-  // };
+  };
 
-  // for (uint16_t i = 0; i < 8; i++) {
+  for (uint16_t i = 0; i < 8; i++) {
-  //   lines[i].draw(surface.buffer, bisexual);
+    lines[i].draw(surface.buffer, blue);
-  // }
+  }
 
 
   surface.present();

primatives/line.cpp

@@ -5,14 +5,15 @@
 #include "../datatypes.cpp"
 #include "../helpers.cpp"
 #include "../buffer.cpp"
-#include "../shader.cpp"
+#include "../shaders/shaders.h"
 
 namespace UwU {
   // line
   class Line {
     private:
       // plot lines if m <= 1
-      void lineLow(int16_t ix0, int16_t iy0, int16_t ix1, int16_t iy1, Buffer buffer, Shader shader) {
+      template <class ShaderT>
+      void lineLow(int16_t ix0, int16_t iy0, int16_t ix1, int16_t iy1, Buffer buffer, ShaderBase<ShaderT>& shader) {
         int16_t dx = ix1 - ix0;
         int16_t dy = iy1 - iy0;
         int16_t yi = 1;
@@ -23,59 +24,21 @@ namespace UwU {
         int16_t d = (2 * dy) - dx;
         int16_t y = iy0;
 
-        if (shader.shaderType == COLOR) {
+        for (int16_t x = ix0; x < ix1; x++) {
-          for (int16_t x = ix0; x < ix1; x++) {
+          buffer.drawPixel((uint16_t)x, (uint16_t)y, shader.shade(x, y));
-            buffer.drawPixel((uint16_t)x, (uint16_t)y, shader.c0);
+          if (d > 0) {
-            if (d > 0) {
+            y += yi;
-              y += yi;
+            d += (2 * (dy - dx));
-              d += (2 * (dy - dx));
+          } else {
-            } else {
+            d += (2 * dy);
-              d += (2 * dy);
-            }
           }
-          return;
-
-        } else if (shader.shaderType == HGRADIENT) {
-          for (int16_t x = ix0; x < ix1; x++) {
-            buffer.drawPixel((uint16_t)x, (uint16_t)y, ShaderMethods::gradient(shader.u0, shader.scale, shader.c0, shader.c1, x));
-            if (d > 0) {
-              y += yi;
-              d += (2 * (dy - dx));
-            } else {
-              d += (2 * dy);
-            }
-          }
-          return;
-
-        } else if (shader.shaderType == VGRADIENT) {
-          for (int16_t x = ix0; x < ix1; x++) {
-            buffer.drawPixel((uint16_t)x, (uint16_t)y, ShaderMethods::gradient(shader.v0, shader.scale, shader.c0, shader.c1, y));
-            if (d > 0) {
-              y += yi;
-              d += (2 * (dy - dx));
-            } else {
-              d += (2 * dy);
-            }
-          }
-          return;
-
-        } else if (shader.shaderType == BUFFER) {
-          for (int16_t x = ix0; x < ix1; x++) {
-            buffer.drawPixel((uint16_t)x, (uint16_t)y, ShaderMethods::buffer(shader.u0, shader.v0, shader.buffer, x, y));
-            if (d > 0) {
-              y += yi;
-              d += (2 * (dy - dx));
-            } else {
-              d += (2 * dy);
-            }
-          }
-          return;
         }
         return;
       }
 
       // plot lines if m >1
-      void lineHigh(int16_t ix0, int16_t iy0, int16_t ix1, int16_t iy1, Buffer buffer, Shader shader) {
+      template <class ShaderT>
+      void lineHigh(int16_t ix0, int16_t iy0, int16_t ix1, int16_t iy1, Buffer buffer, ShaderBase<ShaderT>& shader) {
         int16_t dx = ix1 - ix0;
         int16_t dy = iy1 - iy0;
         int16_t xi = 1;
@@ -86,55 +49,16 @@ namespace UwU {
         int16_t d = (2 * dx) - dy;
         int16_t x = ix0;
 
-        if (shader.shaderType == COLOR) {
+        for (int16_t y = iy0; y < iy1; y++) {
-          for (int16_t y = iy0; y < iy1; y++) {
+        buffer.drawPixel((uint16_t)x, (uint16_t)y, shader.shade(x, y));
-          buffer.drawPixel((uint16_t)x, (uint16_t)y, shader.c0);
+        if (d > 0) {
-          if (d > 0) {
+          x += xi;
-            x += xi;
+          d += (2 * (dx - dy));
-            d += (2 * (dx - dy));
+        } else {
-          } else {
+          d += (2 * dx);
-            d += (2 * dx);
-          }
         }
-        return;
+      }
-
+      return;
-        } else if (shader.shaderType == HGRADIENT) {
-          for (int16_t y = iy0; y < iy1; y++) {
-          buffer.drawPixel((uint16_t)x, (uint16_t)y, ShaderMethods::gradient(shader.u0, shader.scale, shader.c0, shader.c1, x));
-          if (d > 0) {
-            x += xi;
-            d += (2 * (dx - dy));
-          } else {
-            d += (2 * dx);
-          }
-        }
-        return;
-
-        } else if (shader.shaderType == VGRADIENT) {
-          for (int16_t y = iy0; y < iy1; y++) {
-          buffer.drawPixel((uint16_t)x, (uint16_t)y, ShaderMethods::gradient(shader.v0, shader.scale, shader.c0, shader.c1, y));
-          if (d > 0) {
-            x += xi;
-            d += (2 * (dx - dy));
-          } else {
-            d += (2 * dx);
-          }
-        }
-        return;
-          
-        } else if (shader.shaderType == BUFFER) {
-          for (int16_t y = iy0; y < iy1; y++) {
-          buffer.drawPixel((uint16_t)x, (uint16_t)y, ShaderMethods::buffer(shader.u0, shader.v0, shader.buffer, x, y));
-          if (d > 0) {
-            x += xi;
-            d += (2 * (dx - dy));
-          } else {
-            d += (2 * dx);
-          }
-        }
-        return;
-        }
-        return;
       }
 
     public:
@@ -151,7 +75,8 @@ namespace UwU {
       uint16_t y1;
 
       // Uses Bresenham's line algorithm to draw line of any slope
-      void draw (Buffer buffer, Shader shader) {
+      template <class ShaderT>
+      void draw (Buffer buffer, ShaderBase<ShaderT>& shader) {
         if (x0 > buffer.width || y0 > buffer.height || x1 > buffer.width || y1 > buffer.height) {return;};
         int16_t ix0 = x0;
         int16_t iy0 = y0;

primatives/trapezoid.cpp

@@ -6,7 +6,7 @@
 #include "../datatypes.cpp"
 #include "../helpers.cpp"
 #include "../buffer.cpp"
-#include "../shader.cpp"
+#include "../shaders/shaders.h"
 
 namespace UwU {
   // trapezoid (horizontally constrained)
@@ -30,7 +30,8 @@ namespace UwU {
       
       // Draw a horizontally bounded trapezoid
       // y1 >= y0
-      void draw (Buffer buffer, Shader shader) {
+      template <class ShaderT>
+      void draw (Buffer buffer, ShaderBase<ShaderT>& shader) {
         uint16_t height = 1 + y1 - y0;
         int16_t LeftBound[height];
         int16_t RightBound[height];
@@ -38,49 +39,10 @@ namespace UwU {
         Helpers::bresenham(0, xl0, y1 - y0, xl1, LeftBound);
         Helpers::bresenham(0, xr0, y1 - y0, xr1, RightBound);
         
-        if (shader.shaderType == COLOR) {
+        for (uint16_t i = 0; i < height; i++) {
-          for (uint16_t i = 0; i < height; i++) {
+          for (uint16_t x = LeftBound[i]; x <= RightBound[i]; x++) {
-            for (uint16_t x = LeftBound[i]; x <= RightBound[i]; x++) {
+            buffer.drawPixel(x, i + y0, shader.shade(x, i + y0));
-              buffer.drawPixel(x, i + y0, shader.c0);
-            }
           }
-          return;
-
-        } else if (shader.shaderType == HGRADIENT) {
-          // find left-right boundaries
-          uint16_t leftmost = std::min(xl0, xl1);
-          uint16_t rightmost = std::max(xr0, xr1);
-
-          // precompute gradient LUT
-          Color cols[rightmost - leftmost];
-          for (uint16_t x = leftmost; x < rightmost; x++) {
-            cols[x - leftmost] = ShaderMethods::gradient(shader.u0, shader.scale, shader.c0, shader.c1, x);
-          }
-
-          for (uint16_t i = 0; i < height; i++) {
-            for (uint16_t x = LeftBound[i]; x <= RightBound[i]; x++) {
-              buffer.drawPixel(x, i + y0, cols[x - leftmost]);
-            }
-          }
-          return;
-
-        } else if (shader.shaderType == VGRADIENT) {
-          Color c;
-          for (uint16_t i = 0; i < height; i++) {
-            c = ShaderMethods::gradient(shader.v0, shader.scale, shader.c0, shader.c1, i + y0);
-            for (uint16_t x = LeftBound[i]; x <= RightBound[i]; x++) {
-              buffer.drawPixel(x, i + y0, c);
-            }
-          }
-          return;
-
-        } else if (shader.shaderType == BUFFER) {
-          for (uint16_t i = 0; i < height; i++) {
-            for (uint16_t x = LeftBound[i]; x <= RightBound[i]; x++) {
-              buffer.drawPixel(x, i + y0, ShaderMethods::buffer(shader.u0, shader.v0, shader.buffer, x, i + y0));
-            }
-          }
-          return;
         }
         return;
       }