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Internals: ImDrawList: shallow tweaks to RenderText().

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ocornut 2023-01-17 16:04:52 +01:00
parent 51c97a41aa
commit 0359f6e94f
1 changed files with 7 additions and 8 deletions
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11
imgui_draw.cpp
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@ -3611,10 +3611,9 @@ void ImFont::RenderText(ImDrawList* draw_list, float size, const ImVec2& pos, Im
const int idx_count_max = (int)(text_end - s) * 6; const int idx_count_max = (int)(text_end - s) * 6;
const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max; const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max;
draw_list->PrimReserve(idx_count_max, vtx_count_max); draw_list->PrimReserve(idx_count_max, vtx_count_max);
ImDrawVert* vtx_write = draw_list->_VtxWritePtr; ImDrawVert* vtx_write = draw_list->_VtxWritePtr;
ImDrawIdx* idx_write = draw_list->_IdxWritePtr; ImDrawIdx* idx_write = draw_list->_IdxWritePtr;
unsigned int vtx_current_idx = draw_list->_VtxCurrentIdx; unsigned int vtx_index = draw_list->_VtxCurrentIdx;
const ImU32 col_untinted = col | ~IM_COL32_A_MASK; const ImU32 col_untinted = col | ~IM_COL32_A_MASK;
const char* word_wrap_eol = NULL; const char* word_wrap_eol = NULL;
@ -3713,14 +3712,14 @@ void ImFont::RenderText(ImDrawList* draw_list, float size, const ImVec2& pos, Im
// We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug builds. Inlined here: // We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug builds. Inlined here:
{ {
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.x = x1; vtx_write[0].pos.y = y1; vtx_write[0].col = glyph_col; vtx_write[0].uv.x = u1; vtx_write[0].uv.y = v1; vtx_write[0].pos.x = x1; vtx_write[0].pos.y = y1; vtx_write[0].col = glyph_col; vtx_write[0].uv.x = u1; vtx_write[0].uv.y = v1;
vtx_write[1].pos.x = x2; vtx_write[1].pos.y = y1; vtx_write[1].col = glyph_col; vtx_write[1].uv.x = u2; vtx_write[1].uv.y = v1; vtx_write[1].pos.x = x2; vtx_write[1].pos.y = y1; vtx_write[1].col = glyph_col; vtx_write[1].uv.x = u2; vtx_write[1].uv.y = v1;
vtx_write[2].pos.x = x2; vtx_write[2].pos.y = y2; vtx_write[2].col = glyph_col; vtx_write[2].uv.x = u2; vtx_write[2].uv.y = v2; vtx_write[2].pos.x = x2; vtx_write[2].pos.y = y2; vtx_write[2].col = glyph_col; vtx_write[2].uv.x = u2; vtx_write[2].uv.y = v2;
vtx_write[3].pos.x = x1; vtx_write[3].pos.y = y2; vtx_write[3].col = glyph_col; vtx_write[3].uv.x = u1; vtx_write[3].uv.y = v2; vtx_write[3].pos.x = x1; vtx_write[3].pos.y = y2; vtx_write[3].col = glyph_col; vtx_write[3].uv.x = u1; vtx_write[3].uv.y = v2;
idx_write[0] = (ImDrawIdx)(vtx_index); idx_write[1] = (ImDrawIdx)(vtx_index + 1); idx_write[2] = (ImDrawIdx)(vtx_index + 2);
idx_write[3] = (ImDrawIdx)(vtx_index); idx_write[4] = (ImDrawIdx)(vtx_index + 2); idx_write[5] = (ImDrawIdx)(vtx_index + 3);
vtx_write += 4; vtx_write += 4;
vtx_current_idx += 4; vtx_index += 4;
idx_write += 6; idx_write += 6;
} }
} }
@ -3734,7 +3733,7 @@ void ImFont::RenderText(ImDrawList* draw_list, float size, const ImVec2& pos, Im
draw_list->CmdBuffer[draw_list->CmdBuffer.Size - 1].ElemCount -= (idx_expected_size - draw_list->IdxBuffer.Size); draw_list->CmdBuffer[draw_list->CmdBuffer.Size - 1].ElemCount -= (idx_expected_size - draw_list->IdxBuffer.Size);
draw_list->_VtxWritePtr = vtx_write; draw_list->_VtxWritePtr = vtx_write;
draw_list->_IdxWritePtr = idx_write; draw_list->_IdxWritePtr = idx_write;
draw_list->_VtxCurrentIdx = vtx_current_idx; draw_list->_VtxCurrentIdx = vtx_index;
} }
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------