Merge branch '2015-04-indexed-rendering' into 2015-03-antialiased-primitives

Conflicts:
	imgui.cpp
	imgui.h
This commit is contained in:
ocornut
2015-06-30 12:43:26 -06:00
6 changed files with 264 additions and 95 deletions

21
imgui.h
View File

@ -695,6 +695,7 @@ struct ImGuiIO
float Framerate; // Framerate estimation, in frame per second. Rolling average estimation based on IO.DeltaTime over 120 frames
int MetricsAllocs; // Number of active memory allocations
int MetricsRenderVertices; // Vertices processed during last call to Render()
int MetricsRenderIndices; //
int MetricsActiveWindows; // Number of visible windows (exclude child windows)
//------------------------------------------------------------------
@ -979,13 +980,16 @@ typedef void (*ImDrawCallback)(const ImDrawList* parent_list, const ImDrawCmd* c
// Typically, 1 command = 1 gpu draw call (unless command is a callback)
struct ImDrawCmd
{
unsigned int vtx_count; // Number of vertices (multiple of 3) to be drawn as triangles. The vertices are stored in the callee ImDrawList's vtx_buffer[] array.
unsigned int idx_count; // Number of indices (multiple of 3) to be rendered as triangles. Vertices are stored in the callee ImDrawList's vtx_buffer[] array, indices in idx_buffer[].
ImVec4 clip_rect; // Clipping rectangle (x1, y1, x2, y2)
ImTextureID texture_id; // User-provided texture ID. Set by user in ImfontAtlas::SetTexID() for fonts or passed to Image*() functions. Ignore if never using images or multiple fonts atlas.
ImDrawCallback user_callback; // If != NULL, call the function instead of rendering the vertices. vtx_count will be 0. clip_rect and texture_id will be set normally.
void* user_callback_data; // The draw callback code can access this.
};
// Vertex index
typedef unsigned short ImDrawIdx;
// Vertex layout
#ifndef IMGUI_OVERRIDE_DRAWVERT_STRUCT_LAYOUT
struct ImDrawVert
@ -1013,12 +1017,15 @@ struct ImDrawList
// This is what you have to render
ImVector<ImDrawCmd> commands; // Commands. Typically 1 command = 1 gpu draw call.
ImVector<ImDrawVert> vtx_buffer; // Vertex buffer. Each command consume ImDrawCmd::vtx_count of those
ImVector<ImDrawIdx> idx_buffer; // Index buffer. Each command consume ImDrawCmd::idx_count of those
// [Internal to ImGui]
ImVector<ImVec4> clip_rect_stack; // [Internal]
ImVector<ImTextureID> texture_id_stack; // [Internal]
ImDrawVert* vtx_write; // [Internal] point within vtx_buffer after each add command (to avoid using the ImVector<> operators too much)
ImVector<ImVec2> path; // [Internal]
ImDrawVert* vtx_write; // [Internal] point within vtx_buffer after each add command (to avoid using the ImVector<> operators too much)
ImDrawIdx vtx_current_idx; // [Internal] == vtx_buffer.size()
ImDrawIdx* idx_write; // [Internal] point within idx_buffer after each add command (to avoid using the ImVector<> operators too much)
ImDrawList() { Clear(); }
IMGUI_API void Clear();
@ -1051,15 +1058,17 @@ struct ImDrawList
IMGUI_API void AddConvexPolyFilled(const ImVec2* points, const int num_points, ImU32 col);
// 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.
IMGUI_API void AddDrawCmd(); // This is useful if you need to forcefully create a new draw call (to allow for dependent rendering / blending). Otherwise primitives are merged into the same draw-call as much as possible
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.
IMGUI_API void AddDrawCmd(); // This is useful if you need to forcefully create a new draw call (to allow for dependent rendering / blending). Otherwise primitives are merged into the same draw-call as much as possible
// Internal helpers
IMGUI_API void PrimReserve(unsigned int vtx_count);
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();
IMGUI_API void PrimVtx(const ImVec2& pos, const ImVec2& uv, ImU32 col) { vtx_write->pos = pos; vtx_write->uv = uv; vtx_write->col = col; vtx_write++; }
IMGUI_API void PrimVtx(const ImVec2& pos, const ImVec2& uv, ImU32 col) { vtx_write->pos = pos; vtx_write->uv = uv; vtx_write->col = col; vtx_write++; vtx_current_idx++; }
IMGUI_API void PrimIdx(unsigned int idx) { *idx_write++ = (ImDrawIdx)idx; }
};
// Load and rasterize multiple TTF fonts into a same texture.