"progress"

archive/src/display/mesh/quad.c

@@ -0,0 +1,149 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "quad.h"
+#include "assert/assert.h"
+#include "debug/debug.h"
+
+mesh_t QUAD_MESH_SIMPLE;
+meshvertex_t QUAD_MESH_SIMPLE_VERTICES[QUAD_VERTEX_COUNT] = {
+  { .color = COLOR_WHITE_4B, .uv = { 0.0f, 0.0f }, .pos = { 0.0f, 0.0f, 0.0f } },
+  { .color = COLOR_WHITE_4B, .uv = { 1.0f, 0.0f }, .pos = { 1.0f, 0.0f, 0.0f } },
+  { .color = COLOR_WHITE_4B, .uv = { 1.0f, 1.0f }, .pos = { 1.0f, 1.0f, 0.0f } },
+
+  { .color = COLOR_WHITE_4B, .uv = { 0.0f, 0.0f }, .pos = { 0.0f, 0.0f, 0.0f } },
+  { .color = COLOR_WHITE_4B, .uv = { 1.0f, 1.0f }, .pos = { 1.0f, 1.0f, 0.0f } },
+  { .color = COLOR_WHITE_4B, .uv = { 0.0f, 1.0f }, .pos = { 0.0f, 1.0f, 0.0f } }
+};
+
+void quadInit() {
+  meshInit(
+    &QUAD_MESH_SIMPLE,
+    QUAD_PRIMITIVE_TYPE,
+    QUAD_VERTEX_COUNT,
+    QUAD_MESH_SIMPLE_VERTICES
+  );
+}
+
+void quadBuffer(
+  meshvertex_t *vertices,
+  const float_t minX,
+  const float_t minY,
+  const float_t maxX,
+  const float_t maxY,
+  const color_t color,
+  const float_t u0,
+  const float_t v0,
+  const float_t u1,
+  const float_t v1
+) {
+  const float_t z = 0.0f; // Z coordinate for 2D rendering
+  assertNotNull(vertices, "Vertices cannot be NULL");
+
+  // First triangle
+  vertices[0].color = color;
+  vertices[0].uv[0] = u0;
+  vertices[0].uv[1] = v1;
+  vertices[0].pos[0] = minX;
+  vertices[0].pos[1] = maxY;
+  vertices[0].pos[2] = z;
+
+  vertices[1].color = color;
+  vertices[1].uv[0] = u1;
+  vertices[1].uv[1] = v0;
+  vertices[1].pos[0] = maxX;
+  vertices[1].pos[1] = minY;
+  vertices[1].pos[2] = z;
+
+  vertices[2].color = color;
+  vertices[2].uv[0] = u0;
+  vertices[2].uv[1] = v0;
+  vertices[2].pos[0] = minX;
+  vertices[2].pos[1] = minY;
+  vertices[2].pos[2] = z;
+
+  // Second triangle
+  vertices[3].color = color;
+  vertices[3].uv[0] = u0;
+  vertices[3].uv[1] = v1;
+  vertices[3].pos[0] = minX;
+  vertices[3].pos[1] = maxY;
+  vertices[3].pos[2] = z;
+
+  vertices[4].color = color;
+  vertices[4].uv[0] = u1;
+  vertices[4].uv[1] = v1;
+  vertices[4].pos[0] = maxX;
+  vertices[4].pos[1] = maxY;
+  vertices[4].pos[2] = z;
+
+  vertices[5].color = color;
+  vertices[5].uv[0] = u1;
+  vertices[5].uv[1] = v0;
+  vertices[5].pos[0] = maxX;
+  vertices[5].pos[1] = minY;
+  vertices[5].pos[2] = z;
+}
+
+void quadBuffer3D(
+  meshvertex_t *vertices,
+  const vec3 min,
+  const vec3 max,
+  const color_t color,
+  const vec2 uvMin,
+  const vec2 uvMax
+) {
+  assertNotNull(vertices, "Vertices cannot be NULL");
+  assertNotNull(min, "Min vector cannot be NULL");
+  assertNotNull(max, "Max vector cannot be NULL");
+  assertNotNull(uvMin, "UV Min vector cannot be NULL");
+  assertNotNull(uvMax, "UV Max vector cannot be NULL");
+
+  // First triangle
+  vertices[0].color = color;
+  vertices[0].uv[0] = uvMin[0];
+  vertices[0].uv[1] = uvMin[1];
+  vertices[0].pos[0] = min[0];
+  vertices[0].pos[1] = min[1];
+  vertices[0].pos[2] = min[2];
+
+  vertices[1].color = color;
+  vertices[1].uv[0] = uvMax[0];
+  vertices[1].uv[1] = uvMin[1];
+  vertices[1].pos[0] = max[0];
+  vertices[1].pos[1] = min[1];
+  vertices[1].pos[2] = min[2];
+
+  vertices[2].color = color;
+  vertices[2].uv[0] = uvMax[0];
+  vertices[2].uv[1] = uvMax[1];
+  vertices[2].pos[0] = max[0];
+  vertices[2].pos[1] = max[1];
+  vertices[2].pos[2] = min[2];
+
+  // Second triangle
+  vertices[3].color = color;
+  vertices[3].uv[0] = uvMin[0];
+  vertices[3].uv[1] = uvMin[1];
+  vertices[3].pos[0] = min[0];
+  vertices[3].pos[1] = min[1];
+  vertices[3].pos[2] = min[2];
+
+  vertices[4].color = color;
+  vertices[4].uv[0] = uvMax[0];
+  vertices[4].uv[1] = uvMax[1];
+  vertices[4].pos[0] = max[0];
+  vertices[4].pos[1] = max[1];
+  vertices[4].pos[2] = min[2];
+
+  vertices[5].color = color;
+  vertices[5].uv[0] = uvMin[0];
+  vertices[5].uv[1] = uvMax[1];
+  vertices[5].pos[0] = min[0];
+  vertices[5].pos[1] = max[1];
+  vertices[5].pos[2] = min[2];
+}