bool ImGui_ImplAllegro5_Init(ALLEGRO_DISPLAY* display)
{
g_Display = display;
// Setup back-end capabilities flags
ImGuiIO& io = ImGui::GetIO();
io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors; // We can honor GetMouseCursor() values (optional)
io.BackendPlatformName = io.BackendRendererName = "imgui_impl_allegro5";
// Create custom vertex declaration.
// Unfortunately Allegro doesn't support 32-bits 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, IM_OFFSETOF(ImDrawVertAllegro, pos) },
{ ALLEGRO_PRIM_TEX_COORD, ALLEGRO_PRIM_FLOAT_2, IM_OFFSETOF(ImDrawVertAllegro, uv) },
{ ALLEGRO_PRIM_COLOR_ATTR, 0, IM_OFFSETOF(ImDrawVertAllegro, col) },
{ 0, 0, 0 }
};
g_VertexDecl = al_create_vertex_decl(elems, sizeof(ImDrawVertAllegro));
io.KeyMap[ImGuiKey_Tab] = ALLEGRO_KEY_TAB;
io.KeyMap[ImGuiKey_LeftArrow] = ALLEGRO_KEY_LEFT;
io.KeyMap[ImGuiKey_RightArrow] = ALLEGRO_KEY_RIGHT;
io.KeyMap[ImGuiKey_UpArrow] = ALLEGRO_KEY_UP;
io.KeyMap[ImGuiKey_DownArrow] = ALLEGRO_KEY_DOWN;
io.KeyMap[ImGuiKey_PageUp] = ALLEGRO_KEY_PGUP;
io.KeyMap[ImGuiKey_PageDown] = ALLEGRO_KEY_PGDN;
io.KeyMap[ImGuiKey_Home] = ALLEGRO_KEY_HOME;
io.KeyMap[ImGuiKey_End] = ALLEGRO_KEY_END;
io.KeyMap[ImGuiKey_Insert] = ALLEGRO_KEY_INSERT;
io.KeyMap[ImGuiKey_Delete] = ALLEGRO_KEY_DELETE;
io.KeyMap[ImGuiKey_Backspace] = ALLEGRO_KEY_BACKSPACE;
io.KeyMap[ImGuiKey_Space] = ALLEGRO_KEY_SPACE;
io.KeyMap[ImGuiKey_Enter] = ALLEGRO_KEY_ENTER;
io.KeyMap[ImGuiKey_Escape] = ALLEGRO_KEY_ESCAPE;
io.KeyMap[ImGuiKey_A] = ALLEGRO_KEY_A;
io.KeyMap[ImGuiKey_C] = ALLEGRO_KEY_C;
io.KeyMap[ImGuiKey_V] = ALLEGRO_KEY_V;
io.KeyMap[ImGuiKey_X] = ALLEGRO_KEY_X;
io.KeyMap[ImGuiKey_Y] = ALLEGRO_KEY_Y;
io.KeyMap[ImGuiKey_Z] = ALLEGRO_KEY_Z;
io.MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
#if ALLEGRO_HAS_CLIPBOARD
io.SetClipboardTextFn = ImGui_ImplAllegro5_SetClipboardText;
io.GetClipboardTextFn = ImGui_ImplAllegro5_GetClipboardText;
io.ClipboardUserData = NULL;
#endif
return true;
}
ChunkData::ChunkData(int32_t x, int32_t z) : x_(x), z_(z)
{
ALLEGRO_VERTEX_ELEMENT elements[] = {
{ ALLEGRO_PRIM_POSITION, ALLEGRO_PRIM_FLOAT_3, offsetof(CustomVertex, pos) },
{ ALLEGRO_PRIM_TEX_COORD, ALLEGRO_PRIM_FLOAT_2, offsetof(CustomVertex, txcoord) },
{ ALLEGRO_PRIM_USER_ATTR, ALLEGRO_PRIM_FLOAT_1, offsetof(CustomVertex, tx_page) },
{ ALLEGRO_PRIM_COLOR_ATTR, ALLEGRO_PRIM_FLOAT_4, offsetof(CustomVertex, color) },
{ 0, 0, 0 }
};
vtxdecl_ = al_create_vertex_decl(elements, sizeof(CustomVertex));
if(!vtxdecl_)
NBT_Debug("failed to create vertex decl");
memset(slice_, 0, sizeof(slice_));
}
bool ImGui_ImplA5_Init(ALLEGRO_DISPLAY* display)
{
g_Display = display;
// Create custom vertex declaration.
// Unfortunately Allegro doesn't support 32-bits 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 }
};
g_VertexDecl = al_create_vertex_decl(elems, sizeof(ImDrawVertAllegro));
ImGuiIO& io = ImGui::GetIO();
io.KeyMap[ImGuiKey_Tab] = ALLEGRO_KEY_TAB;
io.KeyMap[ImGuiKey_LeftArrow] = ALLEGRO_KEY_LEFT;
io.KeyMap[ImGuiKey_RightArrow] = ALLEGRO_KEY_RIGHT;
io.KeyMap[ImGuiKey_UpArrow] = ALLEGRO_KEY_UP;
io.KeyMap[ImGuiKey_DownArrow] = ALLEGRO_KEY_DOWN;
io.KeyMap[ImGuiKey_PageUp] = ALLEGRO_KEY_PGUP;
io.KeyMap[ImGuiKey_PageDown] = ALLEGRO_KEY_PGDN;
io.KeyMap[ImGuiKey_Home] = ALLEGRO_KEY_HOME;
io.KeyMap[ImGuiKey_End] = ALLEGRO_KEY_END;
io.KeyMap[ImGuiKey_Delete] = ALLEGRO_KEY_DELETE;
io.KeyMap[ImGuiKey_Backspace] = ALLEGRO_KEY_BACKSPACE;
io.KeyMap[ImGuiKey_Enter] = ALLEGRO_KEY_ENTER;
io.KeyMap[ImGuiKey_Escape] = ALLEGRO_KEY_ESCAPE;
io.KeyMap[ImGuiKey_A] = ALLEGRO_KEY_A;
io.KeyMap[ImGuiKey_C] = ALLEGRO_KEY_C;
io.KeyMap[ImGuiKey_V] = ALLEGRO_KEY_V;
io.KeyMap[ImGuiKey_X] = ALLEGRO_KEY_X;
io.KeyMap[ImGuiKey_Y] = ALLEGRO_KEY_Y;
io.KeyMap[ImGuiKey_Z] = ALLEGRO_KEY_Z;
io.RenderDrawListsFn = ImGui_ImplA5_RenderDrawLists; // Alternatively you can set this to NULL and call ImGui::GetDrawData() after ImGui::Render() to get the same ImDrawData pointer.
#ifdef _WIN32
io.ImeWindowHandle = al_get_win_window_handle(g_Display);
#endif
return true;
}
static void CustomVertexFormatPrimitives(int mode)
{
static CUSTOM_VERTEX vtx[4];
static ALLEGRO_VERTEX_DECL* decl;
if (mode == INIT) {
int ii = 0;
ALLEGRO_VERTEX_ELEMENT elems[] = {
{ALLEGRO_PRIM_POSITION, ALLEGRO_PRIM_SHORT_2, offsetof(CUSTOM_VERTEX, x)},
{ALLEGRO_PRIM_TEX_COORD_PIXEL, ALLEGRO_PRIM_SHORT_2, offsetof(CUSTOM_VERTEX, u)},
{ALLEGRO_PRIM_COLOR_ATTR, 0, offsetof(CUSTOM_VERTEX, color)},
{0, 0, 0}
};
decl = al_create_vertex_decl(elems, sizeof(CUSTOM_VERTEX));
for (ii = 0; ii < 4; ii++) {
float x, y;
x = 200 * cosf((float)ii / 4.0f * 2 * ALLEGRO_PI);
y = 200 * sinf((float)ii / 4.0f * 2 * ALLEGRO_PI);
vtx[ii].x = x; vtx[ii].y = y;
vtx[ii].u = 64 * x / 100; vtx[ii].v = 64 * y / 100;
vtx[ii].color = al_map_rgba_f(1, 1, 1, 1);
}
} else if (mode == LOGIC) {
Theta += Speed;
al_build_transform(&MainTrans, ScreenW / 2, ScreenH / 2, 1, 1, Theta);
} else if (mode == DRAW) {
if (Blend)
al_set_blender(ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_ONE);
else
al_set_blender(ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_ZERO);
al_use_transform(&MainTrans);
al_draw_prim(vtx, decl, Texture, 0, 4, ALLEGRO_PRIM_TRIANGLE_FAN);
al_use_transform(&Identity);
}
}
