diff options
Diffstat (limited to 'Runtime/GUI/UI9Slicing.cpp')
| -rw-r--r-- | Runtime/GUI/UI9Slicing.cpp | 93 |
1 files changed, 86 insertions, 7 deletions
diff --git a/Runtime/GUI/UI9Slicing.cpp b/Runtime/GUI/UI9Slicing.cpp index 01a0143..d4c48ca 100644 --- a/Runtime/GUI/UI9Slicing.cpp +++ b/Runtime/GUI/UI9Slicing.cpp @@ -1,6 +1,13 @@ #include "UI9Slicing.h" +#include "Runtime/Math/MathHelper.h" +#include <cstring> -UI9Slicing::UI9Slicing(ESlicing mode, Vector2 horizontal, Vector2 vertical, Vector2 texPixelSize, Vector2 size) +using namespace std; + +static vector<UIVertexLayout> s_Vertices; +static vector<UIIndex> s_Indices; + +UI9Slicing::UI9Slicing(int mode, Vector2 horizontal, Vector2 vertical, Vector2 texPixelSize, Vector2 size) { m_Slicing = mode; m_Horizontal = horizontal.Clamp(0, texPixelSize.x, 0, texPixelSize.x); @@ -16,15 +23,87 @@ UI9Slicing::UI9Slicing(ESlicing mode, Vector2 horizontal, Vector2 vertical, Vect void UI9Slicing::Draw() { + s_Indices.clear(); + s_Vertices.clear(); + Vector2 tileSize = Vector2(m_TexSize.x - m_Horizontal[0] - m_Horizontal[1], m_TexSize.y - m_Vertical[0] - m_Vertical[1]); + Vector2 fillSize = Vector2(m_Size.x - m_Horizontal[0] - m_Horizontal[1], m_Size.y - m_Vertical[0] - m_Vertical[1]); + // horizonal和vertical对应的uv，注意uv在左下角，mesh在左上角 + Vector2 tileUVx = Vector2(m_Horizontal[0] / m_TexSize.x, (m_TexSize.x - m_Horizontal[1]) / m_TexSize.x); + Vector2 tileUVy = Vector2((m_TexSize.y - m_Vertical[0]) / m_TexSize.y, m_Vertical[1] / m_TexSize.y); - uint8* vb; - uint16* ib; + // fill vertices + int row = 2 + ((fillSize.y <= 0) ? 0 : (m_Slicing == Slicing_Simple ? 2 : ceilf((float)fillSize.y / tileSize.y) + 1)); + int colum = 2 + ((fillSize.x <= 0) ? 0 : (m_Slicing == Slicing_Simple ? 2 : ceilf((float)fillSize.x / tileSize.x) + 1)); - g_SharedVBO.GetChunk(sizeof(UIVertexLayout), sizeof(uint16), 4, 6, Primitive_Triangle, (void**)&vb, (void**)&ib); + for (int r = 0; r < row; ++r) + { + UIVertexLayout vert; + vert.color = Color32::white; + if (r == 0) + { + vert.position.y = 0; + vert.uv.y = 1; + } + else if (r == row - 1) + { + vert.position.y = m_Size.y; + vert.uv.y = 0; + } + else { + if (m_Slicing == Slicing_Tiled) { + vert.position.y = clamp(m_Vertical[0] + (r - 1) * tileSize.y, m_Vertical[0], m_Size.y - m_Vertical[1]); + vert.uv.y = odd(r - 1) ? tileUVy[1] : tileUVy[0]; + } else { + vert.position.y = odd(r - 1) ? m_Size.y - m_Vertical[1] : m_Vertical[0]; + vert.uv.y = odd(r - 1) ? tileUVy[1] : tileUVy[0]; + } + } + for (int c = 0; c < colum; ++c) + { + if (c == 0) + { + vert.position.x = 0; + vert.uv.x = 0; + } + else if (c == colum - 1) + { + vert.position.x = m_Size.x; + vert.uv.x = 1; + } + else { + if (m_Slicing == Slicing_Tiled) { + vert.position.x = clamp(m_Horizontal[0] + (c - 1) * tileSize.x, m_Horizontal[0], m_Size.x - m_Horizontal[0]); + vert.uv.x = odd(c - 1) ? tileUVx[1] : tileUVx[0]; + } else { + vert.position.x = odd(c - 1) ? (m_Size.x - m_Horizontal[1]) : m_Horizontal[0]; + vert.uv.x = odd(c - 1) ? tileUVx[1] : tileUVx[0]; + } + } + s_Vertices.push_back(vert); + if (c < colum - 1 && r < row - 1) { + int index = c + r * colum; + s_Indices.push_back(index); s_Indices.push_back(index + colum); s_Indices.push_back(index + colum + 1); + s_Indices.push_back(index + colum + 1); s_Indices.push_back(index + 1); s_Indices.push_back(index); + } + } + } + void* vb; + void* ib; - g_SharedVBO.ReleaseChunk(4, 6); - g_SharedVBO.DrawChunk(UIMesh::s_UIVertexLayout); -} + int vertCount = s_Vertices.size(); + int indicesCount = s_Indices.size(); + + g_SharedVBO.GetChunk(sizeof(UIVertexLayout), sizeof(UIIndex), vertCount, indicesCount, Primitive_Triangle, &vb, &ib); + + memcpy(vb, &s_Vertices[0], vertCount * sizeof(UIVertexLayout)); + memcpy(ib, &s_Indices[0], indicesCount* sizeof(UIIndex)); + + s_Indices.resize(0); + s_Vertices.resize(0); + + g_SharedVBO.ReleaseChunk(vertCount, indicesCount); + g_SharedVBO.DrawChunk(s_UIVertexLayout); +}
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