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AA branch: more optimisations.

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This commit is contained in:
ocornut 2015-06-30 13:12:45 -06:00
parent bbdf36cd3a
commit a8f0eb5ec6
1 changed files with 12 additions and 16 deletions
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28
imgui.cpp
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@ -8988,7 +8988,7 @@ void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32
if (aa_enabled) if (aa_enabled)
{ {
// Anti-aliased stroke // Anti-aliased stroke
const float aa_size = 1.0f; const float AA_SIZE = 1.0f;
// Temporary buffer // Temporary buffer
GTempPolyData.resize(points_count * 3); GTempPolyData.resize(points_count * 3);
@ -9012,10 +9012,10 @@ void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32
if (!closed) if (!closed)
{ {
temp_normals[points_count-1] = temp_normals[points_count-2]; temp_normals[points_count-1] = temp_normals[points_count-2];
temp_outer[0] = points[0] + temp_normals[0]*aa_size; temp_outer[0] = points[0] + temp_normals[0] * AA_SIZE;
temp_inner[0] = points[0] - temp_normals[0]*aa_size; temp_inner[0] = points[0] - temp_normals[0] * AA_SIZE;
temp_outer[points_count-1] = points[points_count-1] + temp_normals[points_count-1]*aa_size; temp_outer[points_count-1] = points[points_count-1] + temp_normals[points_count-1] * AA_SIZE;
temp_inner[points_count-1] = points[points_count-1] - temp_normals[points_count-1]*aa_size; temp_inner[points_count-1] = points[points_count-1] - temp_normals[points_count-1] * AA_SIZE;
} }
const ImU32 col_trans = col & 0x00ffffff; const ImU32 col_trans = col & 0x00ffffff;
@ -9038,7 +9038,7 @@ void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32
if (scale > 100.0f) scale = 100.0f; if (scale > 100.0f) scale = 100.0f;
dm *= scale; dm *= scale;
} }
dm *= aa_size; dm *= AA_SIZE;
temp_outer[ni] = points[ni] + dm; temp_outer[ni] = points[ni] + dm;
temp_inner[ni] = points[ni] - dm; temp_inner[ni] = points[ni] - dm;
@ -9109,13 +9109,11 @@ void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_coun
if (aa_enabled) if (aa_enabled)
{ {
// Anti-aliased Fill // Anti-aliased Fill
const float aa_size = 1.0f; const float AA_SIZE = 1.0f;
// Temporary buffer // Temporary buffer
GTempPolyData.resize(points_count * 3); GTempPolyData.resize(points_count);
ImVec2* temp_inner = &GTempPolyData[0]; ImVec2* temp_normals = &GTempPolyData[0];
ImVec2* temp_outer = temp_inner + points_count;
ImVec2* temp_normals = temp_inner + points_count + 2;
for (int i = 0, j = points_count-1; i < points_count; j=i++) for (int i = 0, j = points_count-1; i < points_count; j=i++)
{ {
@ -9155,13 +9153,11 @@ void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_coun
if (scale > 100.0f) scale = 100.0f; if (scale > 100.0f) scale = 100.0f;
dm *= scale; dm *= scale;
} }
dm *= aa_size*0.5f; dm *= AA_SIZE * 0.5f;
temp_outer[i] = points[i] + dm;
temp_inner[i] = points[i] - dm;
// Add vertices // Add vertices
vtx_write[0].pos = temp_inner[i]; vtx_write[0].uv = uv; vtx_write[0].col = col; vtx_write[0].pos = points[i] - dm; vtx_write[0].uv = uv; vtx_write[0].col = col; // Inner
vtx_write[1].pos = temp_outer[i]; vtx_write[1].uv = uv; vtx_write[1].col = col_trans; vtx_write[1].pos = points[i] + dm; vtx_write[1].uv = uv; vtx_write[1].col = col_trans; // Outer
vtx_write += 2; vtx_write += 2;
// Add indexes for fringes // Add indexes for fringes