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AA branch: render axis aligned rect bypassing the AA path

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This commit is contained in:
ocornut 2015-06-30 14:51:25 -06:00
parent b30d08d63a
commit d3c0bfefb3
2 changed files with 43 additions and 14 deletions
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44
imgui.cpp
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@ -8949,6 +8949,22 @@ void ImDrawList::PrimReserve(unsigned int idx_count, unsigned int vtx_count)
idx_write = &idx_buffer[idx_buffer_size];
}
void ImDrawList::PrimRect(const ImVec2& a, const ImVec2& c, ImU32 col)
{
const ImVec2 uv = GImGui->FontTexUvWhitePixel;
const ImVec2 b(c.x, a.y);
const ImVec2 d(a.x, c.y);
idx_write[0] = (ImDrawIdx)(vtx_current_idx); idx_write[1] = (ImDrawIdx)(vtx_current_idx+1); idx_write[2] = (ImDrawIdx)(vtx_current_idx+2);
idx_write[3] = (ImDrawIdx)(vtx_current_idx); idx_write[4] = (ImDrawIdx)(vtx_current_idx+2); idx_write[5] = (ImDrawIdx)(vtx_current_idx+3);
vtx_write[0].pos = a; vtx_write[0].uv = uv; vtx_write[0].col = col;
vtx_write[1].pos = b; vtx_write[1].uv = uv; vtx_write[1].col = col;
vtx_write[2].pos = c; vtx_write[2].uv = uv; vtx_write[2].col = col;
vtx_write[3].pos = d; vtx_write[3].uv = uv; vtx_write[3].col = col;
vtx_write += 4;
vtx_current_idx += 4;
idx_write += 6;
}
void ImDrawList::PrimRectUV(const ImVec2& a, const ImVec2& c, const ImVec2& uv_a, const ImVec2& uv_c, ImU32 col)
{
const ImVec2 b(c.x, a.y);
@ -8968,7 +8984,7 @@ void ImDrawList::PrimRectUV(const ImVec2& a, const ImVec2& c, const ImVec2& uv_a
static ImVector<ImVec2> GTempPolyData;
void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, float thickness, bool closed)
void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, float thickness, bool closed, bool anti_aliased)
{
(void)thickness; // Unsupported
@ -8984,8 +9000,10 @@ void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32
count = points_count-1;
}
const bool aa_enabled = !ImGui::GetIO().KeyCtrl;
if (aa_enabled)
if (ImGui::GetIO().KeyCtrl)
anti_aliased = false;
if (anti_aliased)
{
// Anti-aliased stroke
const float AA_SIZE = 1.0f;
@ -9101,12 +9119,14 @@ void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32
}
}
void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col)
void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col, bool anti_aliased)
{
const ImVec2 uv = GImGui->FontTexUvWhitePixel;
const bool aa_enabled = !ImGui::GetIO().KeyCtrl;
if (aa_enabled)
if (ImGui::GetIO().KeyCtrl)
anti_aliased = false;
if (anti_aliased)
{
// Anti-aliased Fill
const float AA_SIZE = 1.0f;
@ -9278,8 +9298,16 @@ void ImDrawList::AddRectFilled(const ImVec2& a, const ImVec2& b, ImU32 col, floa
{
if ((col >> 24) == 0)
return;
PathRect(a, b, rounding, rounding_corners);
PathFill(col);
if (rounding > 0.0f)
{
PathRect(a, b, rounding, rounding_corners);
PathFill(col);
}
else
{
PrimReserve(6, 4);
PrimRect(a, b, col);
}
}
void ImDrawList::AddTriangleFilled(const ImVec2& a, const ImVec2& b, const ImVec2& c, ImU32 col)

13
imgui.h
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@ -1045,17 +1045,17 @@ struct ImDrawList
IMGUI_API void AddCircleFilled(const ImVec2& centre, float radius, ImU32 col, int num_segments = 12);
IMGUI_API void AddText(const ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end = NULL, float wrap_width = 0.0f, const ImVec4* cpu_fine_clip_rect = NULL);
IMGUI_API void AddImage(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv0, const ImVec2& uv1, ImU32 col = 0xFFFFFFFF);
IMGUI_API void AddPolyline(const ImVec2* points, const int num_points, ImU32 col, float thickness, bool closed);
IMGUI_API void AddConvexPolyFilled(const ImVec2* points, const int num_points, ImU32 col);
IMGUI_API void AddPolyline(const ImVec2* points, const int num_points, ImU32 col, float thickness, bool closed, bool anti_aliased);
IMGUI_API void AddConvexPolyFilled(const ImVec2* points, const int num_points, ImU32 col, bool anti_aliased);
// Stateful path API, add points finish with PathFill() or PathStroke(). Only convex shapes supported.
inline void PathClear() { path.resize(0); }
inline void PathLineTo(const ImVec2& p) { path.push_back(p); }
inline void PathClear() { path.resize(0); }
inline void PathLineTo(const ImVec2& p) { path.push_back(p); }
IMGUI_API void PathArcToFast(const ImVec2& centre, float radius, int a_min, int a_max);
IMGUI_API void PathArcTo(const ImVec2& centre, float radius, float a_min, float a_max, int num_segments = 12);
IMGUI_API void PathRect(const ImVec2& a, const ImVec2& b, float rounding = 0.0f, int rounding_corners = 0x0F);
inline void PathFill(ImU32 col) { AddConvexPolyFilled(&path[0], (int)path.size(), col); PathClear(); }
inline void PathStroke(ImU32 col, float thickness, bool closed) { AddPolyline(&path[0], (int)path.size(), col, thickness, closed); PathClear(); }
inline void PathFill(ImU32 col) { AddConvexPolyFilled(&path[0], (int)path.size(), col, true); PathClear(); }
inline void PathStroke(ImU32 col, float thickness, bool closed) { AddPolyline(&path[0], (int)path.size(), col, thickness, closed, true); PathClear(); }
// Advanced
IMGUI_API void AddCallback(ImDrawCallback callback, void* callback_data); // Your rendering function must check for 'user_callback' in ImDrawCmd and call the function instead of rendering triangles.
@ -1063,6 +1063,7 @@ struct ImDrawList
// Internal helpers
IMGUI_API void PrimReserve(unsigned int idx_count, unsigned int vtx_count);
IMGUI_API void PrimRect(const ImVec2& a, const ImVec2& b, ImU32 col);
IMGUI_API void PrimRectUV(const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, ImU32 col);
IMGUI_API void UpdateClipRect();
IMGUI_API void UpdateTextureID();