sokol_imgui.h: fix font density issue (by properly setting io.DisplayFramebufferScale

1 files changed, 8 insertions, 7 deletions

diff --git a/util/sokol_imgui.h b/util/sokol_imgui.h
index 935e7708..1aa48981 100644
--- a/util/sokol_imgui.h
+++ b/util/sokol_imgui.h
@@ -2916,6 +2916,8 @@ SOKOL_API_IMPL void simgui_new_frame(const simgui_frame_desc_t* desc) {
     ImGuiIO* io = _simgui_imgui_get_io();
     io->DisplaySize.x = ((float)desc->width) / _simgui.cur_dpi_scale;
     io->DisplaySize.y = ((float)desc->height) / _simgui.cur_dpi_scale;
+    io->DisplayFramebufferScale.x = _simgui.cur_dpi_scale;
+    io->DisplayFramebufferScale.y = _simgui.cur_dpi_scale;
     io->DeltaTime = (float)desc->delta_time;
     #if !defined(SOKOL_IMGUI_NO_SOKOL_APP)
         if (io->WantTextInput && !sapp_keyboard_shown()) {
@@ -3032,9 +3034,8 @@ SOKOL_API_IMPL void simgui_render(void) {
     }
 
     // render the ImGui command list
-    const float dpi_scale = _simgui.cur_dpi_scale;
-    const int fb_width = (int) (io->DisplaySize.x * dpi_scale);
-    const int fb_height = (int) (io->DisplaySize.y * dpi_scale);
+    const int fb_width = (int) (io->DisplaySize.x * draw_data->FramebufferScale.x);
+    const int fb_height = (int) (io->DisplaySize.y * draw_data->FramebufferScale.y);
     sg_apply_viewport(0, 0, fb_width, fb_height, true);
     sg_apply_scissor_rect(0, 0, fb_width, fb_height, true);
 
@@ -3087,10 +3088,10 @@ SOKOL_API_IMPL void simgui_render(void) {
                     bind.vertex_buffer_offsets[0] = vb_offset + (int)(pcmd->VtxOffset * sizeof(ImDrawVert));
                     sg_apply_bindings(&bind);
                 }
-                const int scissor_x = (int) (pcmd->ClipRect.x * dpi_scale);
-                const int scissor_y = (int) (pcmd->ClipRect.y * dpi_scale);
-                const int scissor_w = (int) ((pcmd->ClipRect.z - pcmd->ClipRect.x) * dpi_scale);
-                const int scissor_h = (int) ((pcmd->ClipRect.w - pcmd->ClipRect.y) * dpi_scale);
+                const int scissor_x = (int) (pcmd->ClipRect.x * draw_data->FramebufferScale.x);
+                const int scissor_y = (int) (pcmd->ClipRect.y * draw_data->FramebufferScale.y);
+                const int scissor_w = (int) ((pcmd->ClipRect.z - pcmd->ClipRect.x) * draw_data->FramebufferScale.x);
+                const int scissor_h = (int) ((pcmd->ClipRect.w - pcmd->ClipRect.y) * draw_data->FramebufferScale.y);
                 sg_apply_scissor_rect(scissor_x, scissor_y, scissor_w, scissor_h, true);
                 sg_draw((int)pcmd->IdxOffset, (int)pcmd->ElemCount, 1);
             }