add support for imgui textures

source/engine/gui.cpp

@@ -159,13 +159,27 @@ JSC_CCALL(imgui_popid, ImGui::PopID(); )
 
 JSC_CCALL(imgui_image,
   texture *tex = js2texture(argv[0]);
-  simgui_image_desc_t simgd;
-  simgd.image = tex->id;
-  simgd.sampler = std_sampler;
-  simgui_image_t simgui_img = simgui_make_image(&simgd);
-  ImTextureID tex_id = simgui_imtextureid(simgui_img);
-  ImGui::Image(tex_id, ImVec2(tex->width, tex->height), ImVec2(0,0), ImVec2(1,1));
-  simgui_destroy_image(simgui_img);
+  if (!tex->simgui.id) {
+    simgui_image_desc_t simgd;
+    simgd.image = tex->id;
+    simgd.sampler = std_sampler;
+    tex->simgui = simgui_make_image(&simgd);
+  }
+  
+  ImGui::Image(simgui_imtextureid(tex->simgui), ImVec2(tex->width, tex->height), ImVec2(0,0), ImVec2(1,1));
+)
+
+JSC_SCALL(imgui_imagebutton,
+  texture *tex = js2texture(argv[1]);
+  if (!tex->simgui.id) {
+    simgui_image_desc_t simgd;
+    simgd.image = tex->id;
+    simgd.sampler = std_sampler;
+    tex->simgui = simgui_make_image(&simgd);
+  }
+  
+  if (ImGui::ImageButton(str, simgui_imtextureid(tex->simgui), ImVec2(tex->width, tex->height)))
+    script_call_sym(argv[2], 1, argv);
 )
 
 JSC_CCALL(imgui_sameline, ImGui::SameLine(js2number(argv[0])) )
@@ -361,9 +375,16 @@ JSC_SCALL(imgui_seq,
 )
 
 JSC_SCALL(imgui_sequencer,
-  int32_t current = js2number(js_getpropstr(argv[1], "current"));
-  int32_t start = js2number(js_getpropstr(argv[1], "start"));
-  int32_t end = js2number(js_getpropstr(argv[1], "end"));
+  /*float start_time = js2number(js_getpropstr(argv[1], "start"));
+  float end_time = js2number(js_getpropstr(argv[1], "end"));
+  float current = js2number(js_getpropstr(argv[1], "current"));
+  
+  ImVec2 timeline_size = ImGui::GetContentRegionAvail();
+  ImDrawList* draw_list = ImGui::GetWindowDrawList();
+  ImVec2 timeline_start = ImGui::GetCursorScreenPos();
+  float total_time = end_time - start_time;
+  float pixels_per_second = zoom * (timeline_size.x / total_time);
+
   if(ImGui::BeginNeoSequencer(str, &current, &start, &end, {700,200},
   ImGuiNeoSequencerFlags_AllowLengthChanging |
   ImGuiNeoSequencerFlags_EnableSelection | 
@@ -375,7 +396,7 @@ JSC_SCALL(imgui_sequencer,
    
   js_setpropstr(argv[1], "current", number2js(current));
   js_setpropstr(argv[1], "start", number2js(start));
-  js_setpropstr(argv[1], "end", number2js(end));    
+  js_setpropstr(argv[1], "end", number2js(end));    */
 )
 
 JSC_SCALL(imgui_timeline,
@@ -410,6 +431,100 @@ JSC_SCALL(imgui_tlgroup,
   }
 )
 
+ImVec2 js2imvec2(JSValue v)
+{
+  HMM_Vec2 va = js2vec2(v);
+  return ImVec2(va.x,va.y);
+}
+
+ImVec4 js2imvec4(JSValue v)
+{
+  HMM_Vec4 va = js2vec4(v);
+  return ImVec4(va.x, va.y, va.z, va.w);
+}
+
+ImU32 js2imu32(JSValue v)
+{
+  return ImGui::ColorConvertFloat4ToU32(js2imvec4(v));
+}
+
+JSC_CCALL(imgui_rectfilled,
+  ImGui::GetWindowDrawList()->AddRectFilled(js2imvec2(argv[0]), js2imvec2(argv[1]), js2imu32(argv[2]));
+)
+
+JSC_CCALL(imgui_line,
+  ImGui::GetWindowDrawList()->AddLine(js2imvec2(argv[0]), js2imvec2(argv[1]),js2imu32(argv[2]));
+)
+
+JSC_CCALL(imgui_cursorscreenpos,
+  ImVec2 v = ImGui::GetCursorScreenPos();
+  HMM_Vec2 va;
+  va.x = v.x;
+  va.y = v.y;
+  return vec22js(va);
+)
+
+JSC_CCALL(imgui_setcursorscreenpos,
+  ImGui::SetCursorScreenPos(js2imvec2(argv[0]));
+)
+
+JSC_CCALL(imgui_contentregionavail,
+  ImVec2 v = ImGui::GetContentRegionAvail();
+  HMM_Vec2 va;
+  va.x = v.x;
+  va.y = v.y;
+  return vec22js(va);
+)
+
+JSC_CCALL(imgui_beziercubic,
+  ImGui::GetWindowDrawList()->AddBezierCubic(js2imvec2(argv[0]), js2imvec2(argv[1]), js2imvec2(argv[2]), js2imvec2(argv[3]), js2imu32(argv[4]), js2number(argv[5]));
+)
+
+JSC_CCALL(imgui_bezierquad,
+  ImGui::GetWindowDrawList()->AddBezierQuadratic(js2imvec2(argv[0]), js2imvec2(argv[1]), js2imvec2(argv[2]), js2imu32(argv[3]), js2number(argv[4]));
+)
+
+JSC_SCALL(imgui_drawtext,
+  ImGui::GetWindowDrawList()->AddText(js2imvec2(argv[1]), js2imu32(argv[2]), str);
+)
+
+JSC_CCALL(imgui_rect,
+  ImGui::GetWindowDrawList()->AddRect(js2imvec2(argv[0]), js2imvec2(argv[1]), js2imu32(argv[2]));
+)
+
+JSC_CCALL(imgui_mousehoveringrect,
+  return boolean2js(ImGui::IsMouseHoveringRect(js2imvec2(argv[0]), js2imvec2(argv[1])));
+)
+
+JSC_CCALL(imgui_mouseclicked,
+  return boolean2js(ImGui::IsMouseClicked(js2number(argv[0])));
+)
+
+JSC_CCALL(imgui_mousedown,
+  return boolean2js(ImGui::IsMouseDown(js2number(argv[0])));
+)
+
+JSC_CCALL(imgui_mousereleased,
+  return boolean2js(ImGui::IsMouseReleased(js2number(argv[0])));
+)
+
+JSC_CCALL(imgui_mousedragging,
+  return boolean2js(ImGui::IsMouseDragging(js2number(argv[0])));
+)
+
+JSC_CCALL(imgui_mousedelta,
+  ImVec2 dm = ImGui::GetIO().MouseDelta;
+  return vec22js((HMM_Vec2){dm.x,dm.y});
+)
+
+JSC_CCALL(imgui_dummy,
+  ImGui::Dummy(js2imvec2(argv[0]));
+)
+
+JSC_SCALL(imgui_invisiblebutton,
+  ImGui::InvisibleButton(str, js2imvec2(argv[1]));
+)
+
 static const JSCFunctionListEntry js_imgui_funcs[] = {
   MIST_FUNC_DEF(imgui, window, 2),
   MIST_FUNC_DEF(imgui, menu, 2),
@@ -423,6 +538,7 @@ static const JSCFunctionListEntry js_imgui_funcs[] = {
   MIST_FUNC_DEF(imgui, menuitem, 3),
   MIST_FUNC_DEF(imgui, radio, 2),
   MIST_FUNC_DEF(imgui, image, 1),
+  MIST_FUNC_DEF(imgui, imagebutton, 2),
   MIST_FUNC_DEF(imgui, textinput, 2),
   MIST_FUNC_DEF(imgui, textbox, 2),
   MIST_FUNC_DEF(imgui, button, 2),
@@ -459,6 +575,23 @@ static const JSCFunctionListEntry js_imgui_funcs[] = {
   MIST_FUNC_DEF(imgui, timeline, 3),
   MIST_FUNC_DEF(imgui, tlgroup, 2),
   MIST_FUNC_DEF(imgui, seq, 3),
+  MIST_FUNC_DEF(imgui, mousehoveringrect, 2),
+  MIST_FUNC_DEF(imgui, mouseclicked, 1),
+  MIST_FUNC_DEF(imgui, mousedown, 1),
+  MIST_FUNC_DEF(imgui, mousereleased, 1),
+  MIST_FUNC_DEF(imgui, mousedragging, 1),
+  MIST_FUNC_DEF(imgui, mousedelta, 0),
+  MIST_FUNC_DEF(imgui, rect, 3),
+  MIST_FUNC_DEF(imgui, rectfilled, 3),
+  MIST_FUNC_DEF(imgui, line, 3),
+  MIST_FUNC_DEF(imgui, bezierquad, 5),
+  MIST_FUNC_DEF(imgui, beziercubic, 6),
+  MIST_FUNC_DEF(imgui, drawtext, 3),
+  MIST_FUNC_DEF(imgui, cursorscreenpos, 0),
+  MIST_FUNC_DEF(imgui, setcursorscreenpos, 1),
+  MIST_FUNC_DEF(imgui, contentregionavail, 0),
+  MIST_FUNC_DEF(imgui, dummy, 1),
+  MIST_FUNC_DEF(imgui, invisiblebutton, 2),
 };
 
 static int started = 0;

source/engine/jsffi.h

@@ -139,6 +139,7 @@ void ffi_load();
 
 JSValue vec22js(HMM_Vec2 v);
 HMM_Vec2 js2vec2(JSValue v);
+HMM_Vec4 js2vec4(JSValue v);
 
 const char *js2str(JSValue v);
 char *js2strdup(JSValue v);
@@ -148,6 +149,7 @@ cpBitmask js2bitmask(JSValue v);
 int js_print_exception(JSValue v);
 
 struct rgba js2color(JSValue v);
+
 double js2number(JSValue v);
 JSValue number2js(double g);
 

source/engine/texture.c

@@ -161,8 +161,6 @@ struct texture *texture_from_file(const char *path) {
   
   for (int i = 1; i < mips; i++)
     free(mipdata[i]);
-
-
     
   return tex;
 }
@@ -174,6 +172,8 @@ void texture_free(texture *tex)
     free(tex->data);
   if (tex->delays) arrfree(tex->delays);
   sg_destroy_image(tex->id);
+  if (tex->simgui.id)
+    simgui_destroy_image(tex->simgui);  
   free(tex);
 }
 

source/engine/texture.h

@@ -3,7 +3,10 @@
 
 #include "sokol/sokol_gfx.h"
 #include "HandmadeMath.h"
-#include "render.h"  
+#include "render.h"
+
+#include "sokol_app.h"
+#include "sokol/util/sokol_imgui.h"
 
 #define TEX_SPEC 0
 #define TEX_NORM 1
@@ -18,8 +21,8 @@ extern struct rect ST_UNIT;
 
 /* Represents an actual texture on the GPU */
 struct texture {
-  sg_image id; /* ID reference for the GPU memory location of the 
-  texture */
+  sg_image id; /* ID reference for the GPU memory location of the texture */
+  simgui_image_t simgui;
   int width;
   int height;
   unsigned char *data;