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RGBA textures

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This commit is contained in:
Dominic Masters
2026-02-05 21:57:56 -06:00
parent dd697d5650
commit 1af5f238e4
18 changed files with 370 additions and 154 deletions
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154
src/display/mesh/quad.c
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@@ -10,13 +10,13 @@
mesh_t QUAD_MESH_SIMPLE;
meshvertex_t QUAD_MESH_SIMPLE_VERTICES[QUAD_VERTEX_COUNT] = {
{ COLOR_WHITE_4B, { 0.0f, 0.0f }, { 0.0f, 0.0f, 0.0f } },
{ COLOR_WHITE_4B, { 1.0f, 0.0f }, { 1.0f, 0.0f, 0.0f } },
{ COLOR_WHITE_4B, { 1.0f, 1.0f }, { 1.0f, 1.0f, 0.0f } },
{ COLOR_WHITE_4B, { 0.0f, 0.0f }, { 0.0f, 0.0f, 0.0f } },
{ COLOR_WHITE_4B, { 1.0f, 1.0f }, { 1.0f, 1.0f, 0.0f } },
{ COLOR_WHITE_4B, { 0.0f, 1.0f }, { 0.0f, 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, 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() {
@@ -44,38 +44,48 @@ void quadBuffer(
assertNotNull(vertices, "Vertices cannot be NULL");
// First triangle
vertices[0] = (meshvertex_t) {
{ color.r, color.g, color.b, color.a }, // Color
{ u0, v0 }, // UV
{ minX, minY, z } // Position
};
vertices[1] = (meshvertex_t) {
{ color.r, color.g, color.b, color.a }, // Color
{ u1, v0 }, // UV
{ maxX, minY, z } // Position
};
vertices[2] = (meshvertex_t) {
{ color.r, color.g, color.b, color.a }, // Color
{ u1, v1 }, // UV
{ maxX, maxY, z } // Position
};
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[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;
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;
// Second triangle
vertices[3] = (meshvertex_t) {
{ color.r, color.g, color.b, color.a }, // Color
{ u0, v0 }, // UV
{ minX, minY, z } // Position
};
vertices[4] = (meshvertex_t) {
{ color.r, color.g, color.b, color.a }, // Color
{ u1, v1 }, // UV
{ maxX, maxY, z } // Position
};
vertices[5] = (meshvertex_t) {
{ color.r, color.g, color.b, color.a }, // Color
{ u0, v1 }, // UV
{ minX, maxY, z } // Position
};
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[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;
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;
}
void quadBuffer3D(
@@ -93,36 +103,46 @@ void quadBuffer3D(
assertNotNull(uvMax, "UV Max vector cannot be NULL");
// First triangle
vertices[0] = (meshvertex_t) {
{ color.r, color.g, color.b, color.a }, // Color
{ uvMin[0], uvMin[1] }, // UV
{ min[0], min[1], min[2] } // Position
};
vertices[1] = (meshvertex_t) {
{ color.r, color.g, color.b, color.a }, // Color
{ uvMax[0], uvMin[1] }, // UV
{ max[0], min[1], min[2] } // Position
};
vertices[2] = (meshvertex_t) {
{ color.r, color.g, color.b, color.a }, // Color
{ uvMax[0], uvMax[1] }, // UV
{ max[0], max[1], min[2] } // Position
};
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] = (meshvertex_t) {
{ color.r, color.g, color.b, color.a }, // Color
{ uvMin[0], uvMin[1] }, // UV
{ min[0], min[1], min[2] } // Position
};
vertices[4] = (meshvertex_t) {
{ color.r, color.g, color.b, color.a }, // Color
{ uvMax[0], uvMax[1] }, // UV
{ max[0], max[1], min[2] } // Position
};
vertices[5] = (meshvertex_t) {
{ color.r, color.g, color.b, color.a }, // Color
{ uvMin[0], uvMax[1] }, // UV
{ min[0], max[1], min[2] } // Position
};
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];
}