From 432f24319319fe040e142059eb83279c53f90ab8 Mon Sep 17 00:00:00 2001 From: Aldrik Ramaekers Date: Sat, 9 Aug 2025 08:35:03 +0200 Subject: refactor 2 --- imgui-1.92.1/backends/imgui_impl_allegro5.cpp | 670 -------------------------- 1 file changed, 670 deletions(-) delete mode 100644 imgui-1.92.1/backends/imgui_impl_allegro5.cpp (limited to 'imgui-1.92.1/backends/imgui_impl_allegro5.cpp') diff --git a/imgui-1.92.1/backends/imgui_impl_allegro5.cpp b/imgui-1.92.1/backends/imgui_impl_allegro5.cpp deleted file mode 100644 index 5cbb893..0000000 --- a/imgui-1.92.1/backends/imgui_impl_allegro5.cpp +++ /dev/null @@ -1,670 +0,0 @@ -// dear imgui: Renderer + Platform Backend for Allegro 5 -// (Info: Allegro 5 is a cross-platform general purpose library for handling windows, inputs, graphics, etc.) - -// Implemented features: -// [X] Renderer: User texture binding. Use 'ALLEGRO_BITMAP*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef! -// [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures). -// [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy ALLEGRO_KEY_* values are obsolete since 1.87 and not supported since 1.91.5] -// [X] Platform: Clipboard support (from Allegro 5.1.12). -// [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'. -// Missing features or Issues: -// [ ] Renderer: The renderer is suboptimal as we need to convert vertices manually. -// [ ] Platform: Missing gamepad support. - -// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this. -// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need. -// Learn about Dear ImGui: -// - FAQ https://dearimgui.com/faq -// - Getting Started https://dearimgui.com/getting-started -// - Documentation https://dearimgui.com/docs (same as your local docs/ folder). -// - Introduction, links and more at the top of imgui.cpp - -// CHANGELOG -// (minor and older changes stripped away, please see git history for details) -// 2025-07-07: Fixed texture update broken on some platforms where ALLEGRO_LOCK_WRITEONLY needed all texels to be rewritten. -// 2025-06-11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplSDLGPU3_CreateFontsTexture() and ImGui_ImplSDLGPU3_DestroyFontsTexture(). -// 2025-02-18: Added ImGuiMouseCursor_Wait and ImGuiMouseCursor_Progress mouse cursor support. -// 2025-01-06: Avoid calling al_set_mouse_cursor() repeatedly since it appears to leak on on X11 (#8256). -// 2024-08-22: moved some OS/backend related function pointers from ImGuiIO to ImGuiPlatformIO: -// - io.GetClipboardTextFn -> platform_io.Platform_GetClipboardTextFn -// - io.SetClipboardTextFn -> platform_io.Platform_SetClipboardTextFn -// 2022-11-30: Renderer: Restoring using al_draw_indexed_prim() when Allegro version is >= 5.2.5. -// 2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11. -// 2022-09-26: Inputs: Renamed ImGuiKey_ModXXX introduced in 1.87 to ImGuiMod_XXX (old names still supported). -// 2022-01-26: Inputs: replaced short-lived io.AddKeyModsEvent() (added two weeks ago) with io.AddKeyEvent() using ImGuiKey_ModXXX flags. Sorry for the confusion. -// 2022-01-17: Inputs: calling new io.AddMousePosEvent(), io.AddMouseButtonEvent(), io.AddMouseWheelEvent() API (1.87+). -// 2022-01-17: Inputs: always calling io.AddKeyModsEvent() next and before key event (not in NewFrame) to fix input queue with very low framerates. -// 2022-01-10: Inputs: calling new io.AddKeyEvent(), io.AddKeyModsEvent() + io.SetKeyEventNativeData() API (1.87+). Support for full ImGuiKey range. -// 2021-12-08: Renderer: Fixed mishandling of the ImDrawCmd::IdxOffset field! This is an old bug but it never had an effect until some internal rendering changes in 1.86. -// 2021-08-17: Calling io.AddFocusEvent() on ALLEGRO_EVENT_DISPLAY_SWITCH_OUT/ALLEGRO_EVENT_DISPLAY_SWITCH_IN events. -// 2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX). -// 2021-05-19: Renderer: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement) -// 2021-02-18: Change blending equation to preserve alpha in output buffer. -// 2020-08-10: Inputs: Fixed horizontal mouse wheel direction. -// 2019-12-05: Inputs: Added support for ImGuiMouseCursor_NotAllowed mouse cursor. -// 2019-07-21: Inputs: Added mapping for ImGuiKey_KeyPadEnter. -// 2019-05-11: Inputs: Don't filter character value from ALLEGRO_EVENT_KEY_CHAR before calling AddInputCharacter(). -// 2019-04-30: Renderer: Added support for special ImDrawCallback_ResetRenderState callback to reset render state. -// 2018-11-30: Platform: Added touchscreen support. -// 2018-11-30: Misc: Setting up io.BackendPlatformName/io.BackendRendererName so they can be displayed in the About Window. -// 2018-06-13: Platform: Added clipboard support (from Allegro 5.1.12). -// 2018-06-13: Renderer: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle. -// 2018-06-13: Renderer: Stopped using al_draw_indexed_prim() as it is buggy in Allegro's DX9 backend. -// 2018-06-13: Renderer: Backup/restore transform and clipping rectangle. -// 2018-06-11: Misc: Setup io.BackendFlags ImGuiBackendFlags_HasMouseCursors flag + honor ImGuiConfigFlags_NoMouseCursorChange flag. -// 2018-04-18: Misc: Renamed file from imgui_impl_a5.cpp to imgui_impl_allegro5.cpp. -// 2018-04-18: Misc: Added support for 32-bit vertex indices to avoid conversion at runtime. Added imconfig_allegro5.h to enforce 32-bit indices when included from imgui.h. -// 2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_ImplAllegro5_RenderDrawData() in the .h file so you can call it yourself. -// 2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves. -// 2018-02-06: Inputs: Added mapping for ImGuiKey_Space. - -#include "imgui.h" -#ifndef IMGUI_DISABLE -#include "imgui_impl_allegro5.h" -#include // uint64_t -#include // memcpy - -// Allegro -#include -#include -#ifdef _WIN32 -#include -#endif -#define ALLEGRO_HAS_CLIPBOARD ((ALLEGRO_VERSION_INT & ~ALLEGRO_UNSTABLE_BIT) >= ((5 << 24) | (1 << 16) | (12 << 8))) // Clipboard only supported from Allegro 5.1.12 -#define ALLEGRO_HAS_DRAW_INDEXED_PRIM ((ALLEGRO_VERSION_INT & ~ALLEGRO_UNSTABLE_BIT) >= ((5 << 24) | (2 << 16) | ( 5 << 8))) // DX9 implementation of al_draw_indexed_prim() got fixed in Allegro 5.2.5 - -// Visual Studio warnings -#ifdef _MSC_VER -#pragma warning (disable: 4127) // condition expression is constant -#endif - -struct ImDrawVertAllegro -{ - ImVec2 pos; - ImVec2 uv; - ALLEGRO_COLOR col; -}; - -// FIXME-OPT: Unfortunately Allegro doesn't support 32-bit packed colors so we have to convert them to 4 float as well.. -// FIXME-OPT: Consider inlining al_map_rgba()? -// see https://github.com/liballeg/allegro5/blob/master/src/pixels.c#L554 -// and https://github.com/liballeg/allegro5/blob/master/include/allegro5/internal/aintern_pixels.h -#define DRAW_VERT_IMGUI_TO_ALLEGRO(DST, SRC) { (DST)->pos = (SRC)->pos; (DST)->uv = (SRC)->uv; unsigned char* c = (unsigned char*)&(SRC)->col; (DST)->col = al_map_rgba(c[0], c[1], c[2], c[3]); } - -// Allegro Data -struct ImGui_ImplAllegro5_Data -{ - ALLEGRO_DISPLAY* Display; - ALLEGRO_BITMAP* Texture; - double Time; - ALLEGRO_MOUSE_CURSOR* MouseCursorInvisible; - ALLEGRO_VERTEX_DECL* VertexDecl; - char* ClipboardTextData; - ImGuiMouseCursor LastCursor; - - ImVector BufVertices; - ImVector BufIndices; - - ImGui_ImplAllegro5_Data() { memset((void*)this, 0, sizeof(*this)); } -}; - -// Backend data stored in io.BackendPlatformUserData to allow support for multiple Dear ImGui contexts -// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts. -// FIXME: multi-context support is not well tested and probably dysfunctional in this backend. -static ImGui_ImplAllegro5_Data* ImGui_ImplAllegro5_GetBackendData() { return ImGui::GetCurrentContext() ? (ImGui_ImplAllegro5_Data*)ImGui::GetIO().BackendPlatformUserData : nullptr; } - -static void ImGui_ImplAllegro5_SetupRenderState(ImDrawData* draw_data) -{ - // Setup blending - al_set_separate_blender(ALLEGRO_ADD, ALLEGRO_ALPHA, ALLEGRO_INVERSE_ALPHA, ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_INVERSE_ALPHA); - - // Setup orthographic projection matrix - // Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). - { - float L = draw_data->DisplayPos.x; - float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x; - float T = draw_data->DisplayPos.y; - float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y; - ALLEGRO_TRANSFORM transform; - al_identity_transform(&transform); - al_use_transform(&transform); - al_orthographic_transform(&transform, L, T, 1.0f, R, B, -1.0f); - al_use_projection_transform(&transform); - } -} - -// Render function. -void ImGui_ImplAllegro5_RenderDrawData(ImDrawData* draw_data) -{ - // Avoid rendering when minimized - if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f) - return; - - // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do. - // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates). - if (draw_data->Textures != nullptr) - for (ImTextureData* tex : *draw_data->Textures) - if (tex->Status != ImTextureStatus_OK) - ImGui_ImplAllegro5_UpdateTexture(tex); - - // Backup Allegro state that will be modified - ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData(); - ALLEGRO_TRANSFORM last_transform = *al_get_current_transform(); - ALLEGRO_TRANSFORM last_projection_transform = *al_get_current_projection_transform(); - int last_clip_x, last_clip_y, last_clip_w, last_clip_h; - al_get_clipping_rectangle(&last_clip_x, &last_clip_y, &last_clip_w, &last_clip_h); - int last_blender_op, last_blender_src, last_blender_dst; - al_get_blender(&last_blender_op, &last_blender_src, &last_blender_dst); - - // Setup desired render state - ImGui_ImplAllegro5_SetupRenderState(draw_data); - - // Render command lists - for (int n = 0; n < draw_data->CmdListsCount; n++) - { - const ImDrawList* draw_list = draw_data->CmdLists[n]; - - ImVector& vertices = bd->BufVertices; -#if ALLEGRO_HAS_DRAW_INDEXED_PRIM - vertices.resize(draw_list->VtxBuffer.Size); - for (int i = 0; i < draw_list->VtxBuffer.Size; i++) - { - const ImDrawVert* src_v = &draw_list->VtxBuffer[i]; - ImDrawVertAllegro* dst_v = &vertices[i]; - DRAW_VERT_IMGUI_TO_ALLEGRO(dst_v, src_v); - } - const int* indices = nullptr; - if (sizeof(ImDrawIdx) == 2) - { - // FIXME-OPT: Allegro doesn't support 16-bit indices. - // You can '#define ImDrawIdx int' in imconfig.h to request Dear ImGui to output 32-bit indices. - // Otherwise, we convert them from 16-bit to 32-bit at runtime here, which works perfectly but is a little wasteful. - bd->BufIndices.resize(draw_list->IdxBuffer.Size); - for (int i = 0; i < draw_list->IdxBuffer.Size; ++i) - bd->BufIndices[i] = (int)draw_list->IdxBuffer.Data[i]; - indices = bd->BufIndices.Data; - } - else if (sizeof(ImDrawIdx) == 4) - { - indices = (const int*)draw_list->IdxBuffer.Data; - } -#else - // Allegro's implementation of al_draw_indexed_prim() for DX9 was broken until 5.2.5. Unindex buffers ourselves while converting vertex format. - vertices.resize(draw_list->IdxBuffer.Size); - for (int i = 0; i < draw_list->IdxBuffer.Size; i++) - { - const ImDrawVert* src_v = &draw_list->VtxBuffer[draw_list->IdxBuffer[i]]; - ImDrawVertAllegro* dst_v = &vertices[i]; - DRAW_VERT_IMGUI_TO_ALLEGRO(dst_v, src_v); - } -#endif - - // Render command lists - ImVec2 clip_off = draw_data->DisplayPos; - for (int cmd_i = 0; cmd_i < draw_list->CmdBuffer.Size; cmd_i++) - { - const ImDrawCmd* pcmd = &draw_list->CmdBuffer[cmd_i]; - if (pcmd->UserCallback) - { - // User callback, registered via ImDrawList::AddCallback() - // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.) - if (pcmd->UserCallback == ImDrawCallback_ResetRenderState) - ImGui_ImplAllegro5_SetupRenderState(draw_data); - else - pcmd->UserCallback(draw_list, pcmd); - } - else - { - // Project scissor/clipping rectangles into framebuffer space - ImVec2 clip_min(pcmd->ClipRect.x - clip_off.x, pcmd->ClipRect.y - clip_off.y); - ImVec2 clip_max(pcmd->ClipRect.z - clip_off.x, pcmd->ClipRect.w - clip_off.y); - if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y) - continue; - - // Apply scissor/clipping rectangle, Draw - ALLEGRO_BITMAP* texture = (ALLEGRO_BITMAP*)pcmd->GetTexID(); - al_set_clipping_rectangle(clip_min.x, clip_min.y, clip_max.x - clip_min.x, clip_max.y - clip_min.y); -#if ALLEGRO_HAS_DRAW_INDEXED_PRIM - al_draw_indexed_prim(&vertices[0], bd->VertexDecl, texture, &indices[pcmd->IdxOffset], pcmd->ElemCount, ALLEGRO_PRIM_TRIANGLE_LIST); -#else - al_draw_prim(&vertices[0], bd->VertexDecl, texture, pcmd->IdxOffset, pcmd->IdxOffset + pcmd->ElemCount, ALLEGRO_PRIM_TRIANGLE_LIST); -#endif - } - } - } - - // Restore modified Allegro state - al_set_blender(last_blender_op, last_blender_src, last_blender_dst); - al_set_clipping_rectangle(last_clip_x, last_clip_y, last_clip_w, last_clip_h); - al_use_transform(&last_transform); - al_use_projection_transform(&last_projection_transform); -} - -bool ImGui_ImplAllegro5_CreateDeviceObjects() -{ - ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData(); - - // Create an invisible mouse cursor - // Because al_hide_mouse_cursor() seems to mess up with the actual inputs.. - ALLEGRO_BITMAP* mouse_cursor = al_create_bitmap(8, 8); - bd->MouseCursorInvisible = al_create_mouse_cursor(mouse_cursor, 0, 0); - al_destroy_bitmap(mouse_cursor); - - return true; -} - -void ImGui_ImplAllegro5_UpdateTexture(ImTextureData* tex) -{ - if (tex->Status == ImTextureStatus_WantCreate) - { - // Create and upload new texture to graphics system - //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height); - IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr); - IM_ASSERT(tex->Format == ImTextureFormat_RGBA32); - - // Create texture - // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling) - const int new_bitmap_flags = al_get_new_bitmap_flags(); - int new_bitmap_format = al_get_new_bitmap_format(); - al_set_new_bitmap_flags(ALLEGRO_MEMORY_BITMAP | ALLEGRO_MIN_LINEAR | ALLEGRO_MAG_LINEAR); - al_set_new_bitmap_format(ALLEGRO_PIXEL_FORMAT_ABGR_8888_LE); - ALLEGRO_BITMAP* cpu_bitmap = al_create_bitmap(tex->Width, tex->Height); - al_set_new_bitmap_flags(new_bitmap_flags); - al_set_new_bitmap_format(new_bitmap_format); - IM_ASSERT(cpu_bitmap != nullptr && "Backend failed to create texture!"); - - // Upload pixels - ALLEGRO_LOCKED_REGION* locked_region = al_lock_bitmap(cpu_bitmap, al_get_bitmap_format(cpu_bitmap), ALLEGRO_LOCK_WRITEONLY); - IM_ASSERT(locked_region != nullptr && "Backend failed to create texture!"); - memcpy(locked_region->data, tex->GetPixels(), tex->GetSizeInBytes()); - al_unlock_bitmap(cpu_bitmap); - - // Convert software texture to hardware texture. - ALLEGRO_BITMAP* gpu_bitmap = al_clone_bitmap(cpu_bitmap); - al_destroy_bitmap(cpu_bitmap); - IM_ASSERT(gpu_bitmap != nullptr && "Backend failed to create texture!"); - - // Store identifiers - tex->SetTexID((ImTextureID)(intptr_t)gpu_bitmap); - tex->SetStatus(ImTextureStatus_OK); - } - else if (tex->Status == ImTextureStatus_WantUpdates) - { - // Update selected blocks. We only ever write to textures regions which have never been used before! - // This backend choose to use tex->Updates[] but you can use tex->UpdateRect to upload a single region. - ImTextureRect r = tex->UpdateRect; // Bounding box encompassing all individual updates - ALLEGRO_BITMAP* gpu_bitmap = (ALLEGRO_BITMAP*)(intptr_t)tex->TexID; - ALLEGRO_LOCKED_REGION* locked_region = al_lock_bitmap_region(gpu_bitmap, r.x, r.y, r.w, r.h, al_get_bitmap_format(gpu_bitmap), ALLEGRO_LOCK_WRITEONLY); - IM_ASSERT(locked_region && "Backend failed to update texture!"); - for (int y = 0; y < r.h; y++) - memcpy((unsigned char*)locked_region->data + locked_region->pitch * y, tex->GetPixelsAt(r.x, r.y + y), r.w * tex->BytesPerPixel); // dst, src, block pitch - al_unlock_bitmap(gpu_bitmap); - tex->SetStatus(ImTextureStatus_OK); - } - else if (tex->Status == ImTextureStatus_WantDestroy) - { - ALLEGRO_BITMAP* backend_tex = (ALLEGRO_BITMAP*)(intptr_t)tex->TexID; - if (backend_tex) - al_destroy_bitmap(backend_tex); - - // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running) - tex->SetTexID(ImTextureID_Invalid); - tex->SetStatus(ImTextureStatus_Destroyed); - } -} - -void ImGui_ImplAllegro5_InvalidateDeviceObjects() -{ - ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData(); - - // Destroy all textures - for (ImTextureData* tex : ImGui::GetPlatformIO().Textures) - if (tex->RefCount == 1) - { - tex->SetStatus(ImTextureStatus_WantDestroy); - ImGui_ImplAllegro5_UpdateTexture(tex); - } - - // Destroy mouse cursor - if (bd->MouseCursorInvisible) - { - al_destroy_mouse_cursor(bd->MouseCursorInvisible); - bd->MouseCursorInvisible = nullptr; - } -} - -#if ALLEGRO_HAS_CLIPBOARD -static const char* ImGui_ImplAllegro5_GetClipboardText(ImGuiContext*) -{ - ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData(); - if (bd->ClipboardTextData) - al_free(bd->ClipboardTextData); - bd->ClipboardTextData = al_get_clipboard_text(bd->Display); - return bd->ClipboardTextData; -} - -static void ImGui_ImplAllegro5_SetClipboardText(ImGuiContext*, const char* text) -{ - ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData(); - al_set_clipboard_text(bd->Display, text); -} -#endif - -// Not static to allow third-party code to use that if they want to (but undocumented) -ImGuiKey ImGui_ImplAllegro5_KeyCodeToImGuiKey(int key_code); -ImGuiKey ImGui_ImplAllegro5_KeyCodeToImGuiKey(int key_code) -{ - switch (key_code) - { - case ALLEGRO_KEY_TAB: return ImGuiKey_Tab; - case ALLEGRO_KEY_LEFT: return ImGuiKey_LeftArrow; - case ALLEGRO_KEY_RIGHT: return ImGuiKey_RightArrow; - case ALLEGRO_KEY_UP: return ImGuiKey_UpArrow; - case ALLEGRO_KEY_DOWN: return ImGuiKey_DownArrow; - case ALLEGRO_KEY_PGUP: return ImGuiKey_PageUp; - case ALLEGRO_KEY_PGDN: return ImGuiKey_PageDown; - case ALLEGRO_KEY_HOME: return ImGuiKey_Home; - case ALLEGRO_KEY_END: return ImGuiKey_End; - case ALLEGRO_KEY_INSERT: return ImGuiKey_Insert; - case ALLEGRO_KEY_DELETE: return ImGuiKey_Delete; - case ALLEGRO_KEY_BACKSPACE: return ImGuiKey_Backspace; - case ALLEGRO_KEY_SPACE: return ImGuiKey_Space; - case ALLEGRO_KEY_ENTER: return ImGuiKey_Enter; - case ALLEGRO_KEY_ESCAPE: return ImGuiKey_Escape; - case ALLEGRO_KEY_QUOTE: return ImGuiKey_Apostrophe; - case ALLEGRO_KEY_COMMA: return ImGuiKey_Comma; - case ALLEGRO_KEY_MINUS: return ImGuiKey_Minus; - case ALLEGRO_KEY_FULLSTOP: return ImGuiKey_Period; - case ALLEGRO_KEY_SLASH: return ImGuiKey_Slash; - case ALLEGRO_KEY_SEMICOLON: return ImGuiKey_Semicolon; - case ALLEGRO_KEY_EQUALS: return ImGuiKey_Equal; - case ALLEGRO_KEY_OPENBRACE: return ImGuiKey_LeftBracket; - case ALLEGRO_KEY_BACKSLASH: return ImGuiKey_Backslash; - case ALLEGRO_KEY_CLOSEBRACE: return ImGuiKey_RightBracket; - case ALLEGRO_KEY_TILDE: return ImGuiKey_GraveAccent; - case ALLEGRO_KEY_CAPSLOCK: return ImGuiKey_CapsLock; - case ALLEGRO_KEY_SCROLLLOCK: return ImGuiKey_ScrollLock; - case ALLEGRO_KEY_NUMLOCK: return ImGuiKey_NumLock; - case ALLEGRO_KEY_PRINTSCREEN: return ImGuiKey_PrintScreen; - case ALLEGRO_KEY_PAUSE: return ImGuiKey_Pause; - case ALLEGRO_KEY_PAD_0: return ImGuiKey_Keypad0; - case ALLEGRO_KEY_PAD_1: return ImGuiKey_Keypad1; - case ALLEGRO_KEY_PAD_2: return ImGuiKey_Keypad2; - case ALLEGRO_KEY_PAD_3: return ImGuiKey_Keypad3; - case ALLEGRO_KEY_PAD_4: return ImGuiKey_Keypad4; - case ALLEGRO_KEY_PAD_5: return ImGuiKey_Keypad5; - case ALLEGRO_KEY_PAD_6: return ImGuiKey_Keypad6; - case ALLEGRO_KEY_PAD_7: return ImGuiKey_Keypad7; - case ALLEGRO_KEY_PAD_8: return ImGuiKey_Keypad8; - case ALLEGRO_KEY_PAD_9: return ImGuiKey_Keypad9; - case ALLEGRO_KEY_PAD_DELETE: return ImGuiKey_KeypadDecimal; - case ALLEGRO_KEY_PAD_SLASH: return ImGuiKey_KeypadDivide; - case ALLEGRO_KEY_PAD_ASTERISK: return ImGuiKey_KeypadMultiply; - case ALLEGRO_KEY_PAD_MINUS: return ImGuiKey_KeypadSubtract; - case ALLEGRO_KEY_PAD_PLUS: return ImGuiKey_KeypadAdd; - case ALLEGRO_KEY_PAD_ENTER: return ImGuiKey_KeypadEnter; - case ALLEGRO_KEY_PAD_EQUALS: return ImGuiKey_KeypadEqual; - case ALLEGRO_KEY_LCTRL: return ImGuiKey_LeftCtrl; - case ALLEGRO_KEY_LSHIFT: return ImGuiKey_LeftShift; - case ALLEGRO_KEY_ALT: return ImGuiKey_LeftAlt; - case ALLEGRO_KEY_LWIN: return ImGuiKey_LeftSuper; - case ALLEGRO_KEY_RCTRL: return ImGuiKey_RightCtrl; - case ALLEGRO_KEY_RSHIFT: return ImGuiKey_RightShift; - case ALLEGRO_KEY_ALTGR: return ImGuiKey_RightAlt; - case ALLEGRO_KEY_RWIN: return ImGuiKey_RightSuper; - case ALLEGRO_KEY_MENU: return ImGuiKey_Menu; - case ALLEGRO_KEY_0: return ImGuiKey_0; - case ALLEGRO_KEY_1: return ImGuiKey_1; - case ALLEGRO_KEY_2: return ImGuiKey_2; - case ALLEGRO_KEY_3: return ImGuiKey_3; - case ALLEGRO_KEY_4: return ImGuiKey_4; - case ALLEGRO_KEY_5: return ImGuiKey_5; - case ALLEGRO_KEY_6: return ImGuiKey_6; - case ALLEGRO_KEY_7: return ImGuiKey_7; - case ALLEGRO_KEY_8: return ImGuiKey_8; - case ALLEGRO_KEY_9: return ImGuiKey_9; - case ALLEGRO_KEY_A: return ImGuiKey_A; - case ALLEGRO_KEY_B: return ImGuiKey_B; - case ALLEGRO_KEY_C: return ImGuiKey_C; - case ALLEGRO_KEY_D: return ImGuiKey_D; - case ALLEGRO_KEY_E: return ImGuiKey_E; - case ALLEGRO_KEY_F: return ImGuiKey_F; - case ALLEGRO_KEY_G: return ImGuiKey_G; - case ALLEGRO_KEY_H: return ImGuiKey_H; - case ALLEGRO_KEY_I: return ImGuiKey_I; - case ALLEGRO_KEY_J: return ImGuiKey_J; - case ALLEGRO_KEY_K: return ImGuiKey_K; - case ALLEGRO_KEY_L: return ImGuiKey_L; - case ALLEGRO_KEY_M: return ImGuiKey_M; - case ALLEGRO_KEY_N: return ImGuiKey_N; - case ALLEGRO_KEY_O: return ImGuiKey_O; - case ALLEGRO_KEY_P: return ImGuiKey_P; - case ALLEGRO_KEY_Q: return ImGuiKey_Q; - case ALLEGRO_KEY_R: return ImGuiKey_R; - case ALLEGRO_KEY_S: return ImGuiKey_S; - case ALLEGRO_KEY_T: return ImGuiKey_T; - case ALLEGRO_KEY_U: return ImGuiKey_U; - case ALLEGRO_KEY_V: return ImGuiKey_V; - case ALLEGRO_KEY_W: return ImGuiKey_W; - case ALLEGRO_KEY_X: return ImGuiKey_X; - case ALLEGRO_KEY_Y: return ImGuiKey_Y; - case ALLEGRO_KEY_Z: return ImGuiKey_Z; - case ALLEGRO_KEY_F1: return ImGuiKey_F1; - case ALLEGRO_KEY_F2: return ImGuiKey_F2; - case ALLEGRO_KEY_F3: return ImGuiKey_F3; - case ALLEGRO_KEY_F4: return ImGuiKey_F4; - case ALLEGRO_KEY_F5: return ImGuiKey_F5; - case ALLEGRO_KEY_F6: return ImGuiKey_F6; - case ALLEGRO_KEY_F7: return ImGuiKey_F7; - case ALLEGRO_KEY_F8: return ImGuiKey_F8; - case ALLEGRO_KEY_F9: return ImGuiKey_F9; - case ALLEGRO_KEY_F10: return ImGuiKey_F10; - case ALLEGRO_KEY_F11: return ImGuiKey_F11; - case ALLEGRO_KEY_F12: return ImGuiKey_F12; - default: return ImGuiKey_None; - } -} - -bool ImGui_ImplAllegro5_Init(ALLEGRO_DISPLAY* display) -{ - ImGuiIO& io = ImGui::GetIO(); - IMGUI_CHECKVERSION(); - IM_ASSERT(io.BackendPlatformUserData == nullptr && "Already initialized a platform backend!"); - - // Setup backend capabilities flags - ImGui_ImplAllegro5_Data* bd = IM_NEW(ImGui_ImplAllegro5_Data)(); - io.BackendPlatformUserData = (void*)bd; - io.BackendPlatformName = io.BackendRendererName = "imgui_impl_allegro5"; - io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors; // We can honor GetMouseCursor() values (optional) - io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures; // We can honor ImGuiPlatformIO::Textures[] requests during render. - - bd->Display = display; - bd->LastCursor = ALLEGRO_SYSTEM_MOUSE_CURSOR_NONE; - - // Create custom vertex declaration. - // Unfortunately Allegro doesn't support 32-bit packed colors so we have to convert them to 4 floats. - // We still use a custom declaration to use 'ALLEGRO_PRIM_TEX_COORD' instead of 'ALLEGRO_PRIM_TEX_COORD_PIXEL' else we can't do a reliable conversion. - ALLEGRO_VERTEX_ELEMENT elems[] = - { - { ALLEGRO_PRIM_POSITION, ALLEGRO_PRIM_FLOAT_2, offsetof(ImDrawVertAllegro, pos) }, - { ALLEGRO_PRIM_TEX_COORD, ALLEGRO_PRIM_FLOAT_2, offsetof(ImDrawVertAllegro, uv) }, - { ALLEGRO_PRIM_COLOR_ATTR, 0, offsetof(ImDrawVertAllegro, col) }, - { 0, 0, 0 } - }; - bd->VertexDecl = al_create_vertex_decl(elems, sizeof(ImDrawVertAllegro)); - -#if ALLEGRO_HAS_CLIPBOARD - ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO(); - platform_io.Platform_SetClipboardTextFn = ImGui_ImplAllegro5_SetClipboardText; - platform_io.Platform_GetClipboardTextFn = ImGui_ImplAllegro5_GetClipboardText; -#endif - - return true; -} - -void ImGui_ImplAllegro5_Shutdown() -{ - ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData(); - IM_ASSERT(bd != nullptr && "No platform backend to shutdown, or already shutdown?"); - ImGuiIO& io = ImGui::GetIO(); - - ImGui_ImplAllegro5_InvalidateDeviceObjects(); - if (bd->VertexDecl) - al_destroy_vertex_decl(bd->VertexDecl); - if (bd->ClipboardTextData) - al_free(bd->ClipboardTextData); - - io.BackendPlatformName = io.BackendRendererName = nullptr; - io.BackendPlatformUserData = nullptr; - io.BackendFlags &= ~(ImGuiBackendFlags_HasMouseCursors | ImGuiBackendFlags_RendererHasTextures); - IM_DELETE(bd); -} - -// ev->keyboard.modifiers seems always zero so using that... -static void ImGui_ImplAllegro5_UpdateKeyModifiers() -{ - ImGuiIO& io = ImGui::GetIO(); - ALLEGRO_KEYBOARD_STATE keys; - al_get_keyboard_state(&keys); - io.AddKeyEvent(ImGuiMod_Ctrl, al_key_down(&keys, ALLEGRO_KEY_LCTRL) || al_key_down(&keys, ALLEGRO_KEY_RCTRL)); - io.AddKeyEvent(ImGuiMod_Shift, al_key_down(&keys, ALLEGRO_KEY_LSHIFT) || al_key_down(&keys, ALLEGRO_KEY_RSHIFT)); - io.AddKeyEvent(ImGuiMod_Alt, al_key_down(&keys, ALLEGRO_KEY_ALT) || al_key_down(&keys, ALLEGRO_KEY_ALTGR)); - io.AddKeyEvent(ImGuiMod_Super, al_key_down(&keys, ALLEGRO_KEY_LWIN) || al_key_down(&keys, ALLEGRO_KEY_RWIN)); -} - -// You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs. -// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data. -// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data. -// Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags. -bool ImGui_ImplAllegro5_ProcessEvent(ALLEGRO_EVENT* ev) -{ - ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData(); - IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplAllegro5_Init()?"); - ImGuiIO& io = ImGui::GetIO(); - - switch (ev->type) - { - case ALLEGRO_EVENT_MOUSE_AXES: - if (ev->mouse.display == bd->Display) - { - io.AddMousePosEvent(ev->mouse.x, ev->mouse.y); - io.AddMouseWheelEvent(-ev->mouse.dw, ev->mouse.dz); - } - return true; - case ALLEGRO_EVENT_MOUSE_BUTTON_DOWN: - case ALLEGRO_EVENT_MOUSE_BUTTON_UP: - if (ev->mouse.display == bd->Display && ev->mouse.button > 0 && ev->mouse.button <= 5) - io.AddMouseButtonEvent(ev->mouse.button - 1, ev->type == ALLEGRO_EVENT_MOUSE_BUTTON_DOWN); - return true; - case ALLEGRO_EVENT_TOUCH_MOVE: - if (ev->touch.display == bd->Display) - io.AddMousePosEvent(ev->touch.x, ev->touch.y); - return true; - case ALLEGRO_EVENT_TOUCH_BEGIN: - case ALLEGRO_EVENT_TOUCH_END: - case ALLEGRO_EVENT_TOUCH_CANCEL: - if (ev->touch.display == bd->Display && ev->touch.primary) - io.AddMouseButtonEvent(0, ev->type == ALLEGRO_EVENT_TOUCH_BEGIN); - return true; - case ALLEGRO_EVENT_MOUSE_LEAVE_DISPLAY: - if (ev->mouse.display == bd->Display) - io.AddMousePosEvent(-FLT_MAX, -FLT_MAX); - return true; - case ALLEGRO_EVENT_KEY_CHAR: - if (ev->keyboard.display == bd->Display) - if (ev->keyboard.unichar != 0) - io.AddInputCharacter((unsigned int)ev->keyboard.unichar); - return true; - case ALLEGRO_EVENT_KEY_DOWN: - case ALLEGRO_EVENT_KEY_UP: - if (ev->keyboard.display == bd->Display) - { - ImGui_ImplAllegro5_UpdateKeyModifiers(); - ImGuiKey key = ImGui_ImplAllegro5_KeyCodeToImGuiKey(ev->keyboard.keycode); - io.AddKeyEvent(key, (ev->type == ALLEGRO_EVENT_KEY_DOWN)); - io.SetKeyEventNativeData(key, ev->keyboard.keycode, -1); // To support legacy indexing (<1.87 user code) - } - return true; - case ALLEGRO_EVENT_DISPLAY_SWITCH_OUT: - if (ev->display.source == bd->Display) - io.AddFocusEvent(false); - return true; - case ALLEGRO_EVENT_DISPLAY_SWITCH_IN: - if (ev->display.source == bd->Display) - { - io.AddFocusEvent(true); -#if defined(ALLEGRO_UNSTABLE) - al_clear_keyboard_state(bd->Display); -#endif - } - return true; - } - return false; -} - -static void ImGui_ImplAllegro5_UpdateMouseCursor() -{ - ImGuiIO& io = ImGui::GetIO(); - if (io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange) - return; - - ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData(); - ImGuiMouseCursor imgui_cursor = ImGui::GetMouseCursor(); - - // Hide OS mouse cursor if imgui is drawing it - if (io.MouseDrawCursor) - imgui_cursor = ImGuiMouseCursor_None; - - if (bd->LastCursor == imgui_cursor) - return; - bd->LastCursor = imgui_cursor; - if (imgui_cursor == ImGuiMouseCursor_None) - { - al_set_mouse_cursor(bd->Display, bd->MouseCursorInvisible); - } - else - { - ALLEGRO_SYSTEM_MOUSE_CURSOR cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_DEFAULT; - switch (imgui_cursor) - { - case ImGuiMouseCursor_TextInput: cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_EDIT; break; - case ImGuiMouseCursor_ResizeAll: cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_MOVE; break; - case ImGuiMouseCursor_ResizeNS: cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_RESIZE_N; break; - case ImGuiMouseCursor_ResizeEW: cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_RESIZE_E; break; - case ImGuiMouseCursor_ResizeNESW: cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_RESIZE_NE; break; - case ImGuiMouseCursor_ResizeNWSE: cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_RESIZE_NW; break; - case ImGuiMouseCursor_Wait: cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_BUSY; break; - case ImGuiMouseCursor_Progress: cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_PROGRESS; break; - case ImGuiMouseCursor_NotAllowed: cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_UNAVAILABLE; break; - } - al_set_system_mouse_cursor(bd->Display, cursor_id); - } -} - -void ImGui_ImplAllegro5_NewFrame() -{ - ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData(); - IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplAllegro5_Init()?"); - - if (!bd->MouseCursorInvisible) - ImGui_ImplAllegro5_CreateDeviceObjects(); - - // Setup display size (every frame to accommodate for window resizing) - ImGuiIO& io = ImGui::GetIO(); - int w, h; - w = al_get_display_width(bd->Display); - h = al_get_display_height(bd->Display); - io.DisplaySize = ImVec2((float)w, (float)h); - - // Setup time step - double current_time = al_get_time(); - io.DeltaTime = bd->Time > 0.0 ? (float)(current_time - bd->Time) : (float)(1.0f / 60.0f); - bd->Time = current_time; - - // Setup mouse cursor shape - ImGui_ImplAllegro5_UpdateMouseCursor(); -} - -//----------------------------------------------------------------------------- - -#endif // #ifndef IMGUI_DISABLE -- cgit v1.2.3-70-g09d2