| /* |
| * Copyright 2013 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "SkLua.h" |
| |
| #if SK_SUPPORT_GPU |
| #include "GrReducedClip.h" |
| #endif |
| |
| #include "SkCanvas.h" |
| #include "SkData.h" |
| #include "SkDocument.h" |
| #include "SkImage.h" |
| #include "SkMatrix.h" |
| #include "SkPaint.h" |
| #include "SkPath.h" |
| #include "SkPixelRef.h" |
| #include "SkRRect.h" |
| #include "SkString.h" |
| #include "SkTextBlob.h" |
| #include "SkTypeface.h" |
| |
| extern "C" { |
| #include "lua.h" |
| #include "lualib.h" |
| #include "lauxlib.h" |
| } |
| |
| // return the metatable name for a given class |
| template <typename T> const char* get_mtname(); |
| #define DEF_MTNAME(T) \ |
| template <> const char* get_mtname<T>() { \ |
| return #T "_LuaMetaTableName"; \ |
| } |
| |
| DEF_MTNAME(SkCanvas) |
| DEF_MTNAME(SkDocument) |
| DEF_MTNAME(SkImage) |
| DEF_MTNAME(SkMatrix) |
| DEF_MTNAME(SkRRect) |
| DEF_MTNAME(SkPath) |
| DEF_MTNAME(SkPaint) |
| DEF_MTNAME(SkPathEffect) |
| DEF_MTNAME(SkShader) |
| DEF_MTNAME(SkTextBlob) |
| DEF_MTNAME(SkTypeface) |
| |
| template <typename T> T* push_new(lua_State* L) { |
| T* addr = (T*)lua_newuserdata(L, sizeof(T)); |
| new (addr) T; |
| luaL_getmetatable(L, get_mtname<T>()); |
| lua_setmetatable(L, -2); |
| return addr; |
| } |
| |
| template <typename T> void push_obj(lua_State* L, const T& obj) { |
| new (lua_newuserdata(L, sizeof(T))) T(obj); |
| luaL_getmetatable(L, get_mtname<T>()); |
| lua_setmetatable(L, -2); |
| } |
| |
| template <typename T> void push_ref(lua_State* L, T* ref) { |
| *(T**)lua_newuserdata(L, sizeof(T*)) = SkSafeRef(ref); |
| luaL_getmetatable(L, get_mtname<T>()); |
| lua_setmetatable(L, -2); |
| } |
| |
| template <typename T> T* get_ref(lua_State* L, int index) { |
| return *(T**)luaL_checkudata(L, index, get_mtname<T>()); |
| } |
| |
| template <typename T> T* get_obj(lua_State* L, int index) { |
| return (T*)luaL_checkudata(L, index, get_mtname<T>()); |
| } |
| |
| static bool lua2bool(lua_State* L, int index) { |
| return !!lua_toboolean(L, index); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| SkLua::SkLua(const char termCode[]) : fTermCode(termCode), fWeOwnL(true) { |
| fL = luaL_newstate(); |
| luaL_openlibs(fL); |
| SkLua::Load(fL); |
| } |
| |
| SkLua::SkLua(lua_State* L) : fL(L), fWeOwnL(false) {} |
| |
| SkLua::~SkLua() { |
| if (fWeOwnL) { |
| if (fTermCode.size() > 0) { |
| lua_getglobal(fL, fTermCode.c_str()); |
| if (lua_pcall(fL, 0, 0, 0) != LUA_OK) { |
| SkDebugf("lua err: %s\n", lua_tostring(fL, -1)); |
| } |
| } |
| lua_close(fL); |
| } |
| } |
| |
| bool SkLua::runCode(const char code[]) { |
| int err = luaL_loadstring(fL, code) || lua_pcall(fL, 0, 0, 0); |
| if (err) { |
| SkDebugf("--- lua failed: %s\n", lua_tostring(fL, -1)); |
| return false; |
| } |
| return true; |
| } |
| |
| bool SkLua::runCode(const void* code, size_t size) { |
| SkString str((const char*)code, size); |
| return this->runCode(str.c_str()); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| #define CHECK_SETFIELD(key) do if (key) lua_setfield(fL, -2, key); while (0) |
| |
| static void setfield_bool_if(lua_State* L, const char key[], bool pred) { |
| if (pred) { |
| lua_pushboolean(L, true); |
| lua_setfield(L, -2, key); |
| } |
| } |
| |
| static void setfield_string(lua_State* L, const char key[], const char value[]) { |
| lua_pushstring(L, value); |
| lua_setfield(L, -2, key); |
| } |
| |
| static void setfield_number(lua_State* L, const char key[], double value) { |
| lua_pushnumber(L, value); |
| lua_setfield(L, -2, key); |
| } |
| |
| static void setfield_boolean(lua_State* L, const char key[], bool value) { |
| lua_pushboolean(L, value); |
| lua_setfield(L, -2, key); |
| } |
| |
| static void setfield_scalar(lua_State* L, const char key[], SkScalar value) { |
| setfield_number(L, key, SkScalarToLua(value)); |
| } |
| |
| static void setfield_function(lua_State* L, |
| const char key[], lua_CFunction value) { |
| lua_pushcfunction(L, value); |
| lua_setfield(L, -2, key); |
| } |
| |
| static void setarray_number(lua_State* L, int index, double value) { |
| lua_pushnumber(L, value); |
| lua_rawseti(L, -2, index); |
| } |
| |
| static void setarray_scalar(lua_State* L, int index, SkScalar value) { |
| setarray_number(L, index, SkScalarToLua(value)); |
| } |
| |
| void SkLua::pushBool(bool value, const char key[]) { |
| lua_pushboolean(fL, value); |
| CHECK_SETFIELD(key); |
| } |
| |
| void SkLua::pushString(const char str[], const char key[]) { |
| lua_pushstring(fL, str); |
| CHECK_SETFIELD(key); |
| } |
| |
| void SkLua::pushString(const char str[], size_t length, const char key[]) { |
| // TODO: how to do this w/o making a copy? |
| SkString s(str, length); |
| lua_pushstring(fL, s.c_str()); |
| CHECK_SETFIELD(key); |
| } |
| |
| void SkLua::pushString(const SkString& str, const char key[]) { |
| lua_pushstring(fL, str.c_str()); |
| CHECK_SETFIELD(key); |
| } |
| |
| void SkLua::pushColor(SkColor color, const char key[]) { |
| lua_newtable(fL); |
| setfield_number(fL, "a", SkColorGetA(color) / 255.0); |
| setfield_number(fL, "r", SkColorGetR(color) / 255.0); |
| setfield_number(fL, "g", SkColorGetG(color) / 255.0); |
| setfield_number(fL, "b", SkColorGetB(color) / 255.0); |
| CHECK_SETFIELD(key); |
| } |
| |
| void SkLua::pushU32(uint32_t value, const char key[]) { |
| lua_pushnumber(fL, (double)value); |
| CHECK_SETFIELD(key); |
| } |
| |
| void SkLua::pushScalar(SkScalar value, const char key[]) { |
| lua_pushnumber(fL, SkScalarToLua(value)); |
| CHECK_SETFIELD(key); |
| } |
| |
| void SkLua::pushArrayU16(const uint16_t array[], int count, const char key[]) { |
| lua_newtable(fL); |
| for (int i = 0; i < count; ++i) { |
| // make it base-1 to match lua convention |
| setarray_number(fL, i + 1, (double)array[i]); |
| } |
| CHECK_SETFIELD(key); |
| } |
| |
| void SkLua::pushArrayPoint(const SkPoint array[], int count, const char key[]) { |
| lua_newtable(fL); |
| for (int i = 0; i < count; ++i) { |
| // make it base-1 to match lua convention |
| lua_newtable(fL); |
| this->pushScalar(array[i].fX, "x"); |
| this->pushScalar(array[i].fY, "y"); |
| lua_rawseti(fL, -2, i + 1); |
| } |
| CHECK_SETFIELD(key); |
| } |
| |
| void SkLua::pushArrayScalar(const SkScalar array[], int count, const char key[]) { |
| lua_newtable(fL); |
| for (int i = 0; i < count; ++i) { |
| // make it base-1 to match lua convention |
| setarray_scalar(fL, i + 1, array[i]); |
| } |
| CHECK_SETFIELD(key); |
| } |
| |
| void SkLua::pushRect(const SkRect& r, const char key[]) { |
| lua_newtable(fL); |
| setfield_scalar(fL, "left", r.fLeft); |
| setfield_scalar(fL, "top", r.fTop); |
| setfield_scalar(fL, "right", r.fRight); |
| setfield_scalar(fL, "bottom", r.fBottom); |
| CHECK_SETFIELD(key); |
| } |
| |
| void SkLua::pushRRect(const SkRRect& rr, const char key[]) { |
| push_obj(fL, rr); |
| CHECK_SETFIELD(key); |
| } |
| |
| void SkLua::pushDash(const SkPathEffect::DashInfo& info, const char key[]) { |
| lua_newtable(fL); |
| setfield_scalar(fL, "phase", info.fPhase); |
| this->pushArrayScalar(info.fIntervals, info.fCount, "intervals"); |
| CHECK_SETFIELD(key); |
| } |
| |
| |
| void SkLua::pushMatrix(const SkMatrix& matrix, const char key[]) { |
| push_obj(fL, matrix); |
| CHECK_SETFIELD(key); |
| } |
| |
| void SkLua::pushPaint(const SkPaint& paint, const char key[]) { |
| push_obj(fL, paint); |
| CHECK_SETFIELD(key); |
| } |
| |
| void SkLua::pushPath(const SkPath& path, const char key[]) { |
| push_obj(fL, path); |
| CHECK_SETFIELD(key); |
| } |
| |
| void SkLua::pushCanvas(SkCanvas* canvas, const char key[]) { |
| push_ref(fL, canvas); |
| CHECK_SETFIELD(key); |
| } |
| |
| void SkLua::pushTextBlob(const SkTextBlob* blob, const char key[]) { |
| push_ref(fL, const_cast<SkTextBlob*>(blob)); |
| CHECK_SETFIELD(key); |
| } |
| |
| static const char* element_type(SkClipStack::Element::Type type) { |
| switch (type) { |
| case SkClipStack::Element::kEmpty_Type: |
| return "empty"; |
| case SkClipStack::Element::kRect_Type: |
| return "rect"; |
| case SkClipStack::Element::kRRect_Type: |
| return "rrect"; |
| case SkClipStack::Element::kPath_Type: |
| return "path"; |
| } |
| return "unknown"; |
| } |
| |
| static const char* region_op(SkRegion::Op op) { |
| switch (op) { |
| case SkRegion::kDifference_Op: |
| return "difference"; |
| case SkRegion::kIntersect_Op: |
| return "intersect"; |
| case SkRegion::kUnion_Op: |
| return "union"; |
| case SkRegion::kXOR_Op: |
| return "xor"; |
| case SkRegion::kReverseDifference_Op: |
| return "reverse-difference"; |
| case SkRegion::kReplace_Op: |
| return "replace"; |
| } |
| return "unknown"; |
| } |
| |
| void SkLua::pushClipStack(const SkClipStack& stack, const char* key) { |
| lua_newtable(fL); |
| SkClipStack::B2TIter iter(stack); |
| const SkClipStack::Element* element; |
| int i = 0; |
| while (NULL != (element = iter.next())) { |
| this->pushClipStackElement(*element); |
| lua_rawseti(fL, -2, ++i); |
| } |
| CHECK_SETFIELD(key); |
| } |
| |
| void SkLua::pushClipStackElement(const SkClipStack::Element& element, const char* key) { |
| lua_newtable(fL); |
| SkClipStack::Element::Type type = element.getType(); |
| this->pushString(element_type(type), "type"); |
| switch (type) { |
| case SkClipStack::Element::kEmpty_Type: |
| break; |
| case SkClipStack::Element::kRect_Type: |
| this->pushRect(element.getRect(), "rect"); |
| break; |
| case SkClipStack::Element::kRRect_Type: |
| this->pushRRect(element.getRRect(), "rrect"); |
| break; |
| case SkClipStack::Element::kPath_Type: |
| this->pushPath(element.getPath(), "path"); |
| break; |
| } |
| this->pushString(region_op(element.getOp()), "op"); |
| this->pushBool(element.isAA(), "aa"); |
| CHECK_SETFIELD(key); |
| } |
| |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static SkScalar lua2scalar(lua_State* L, int index) { |
| SkASSERT(lua_isnumber(L, index)); |
| return SkLuaToScalar(lua_tonumber(L, index)); |
| } |
| |
| static SkScalar lua2scalar_def(lua_State* L, int index, SkScalar defaultValue) { |
| if (lua_isnumber(L, index)) { |
| return SkLuaToScalar(lua_tonumber(L, index)); |
| } else { |
| return defaultValue; |
| } |
| } |
| |
| static SkScalar getfield_scalar(lua_State* L, int index, const char key[]) { |
| SkASSERT(lua_istable(L, index)); |
| lua_pushstring(L, key); |
| lua_gettable(L, index); |
| |
| SkScalar value = lua2scalar(L, -1); |
| lua_pop(L, 1); |
| return value; |
| } |
| |
| static SkScalar getfield_scalar_default(lua_State* L, int index, const char key[], SkScalar def) { |
| SkASSERT(lua_istable(L, index)); |
| lua_pushstring(L, key); |
| lua_gettable(L, index); |
| |
| SkScalar value; |
| if (lua_isnil(L, -1)) { |
| value = def; |
| } else { |
| value = lua2scalar(L, -1); |
| } |
| lua_pop(L, 1); |
| return value; |
| } |
| |
| static U8CPU unit2byte(SkScalar x) { |
| if (x <= 0) { |
| return 0; |
| } else if (x >= 1) { |
| return 255; |
| } else { |
| return SkScalarRoundToInt(x * 255); |
| } |
| } |
| |
| static SkColor lua2color(lua_State* L, int index) { |
| return SkColorSetARGB(unit2byte(getfield_scalar(L, index, "a")), |
| unit2byte(getfield_scalar(L, index, "r")), |
| unit2byte(getfield_scalar(L, index, "g")), |
| unit2byte(getfield_scalar(L, index, "b"))); |
| } |
| |
| static SkRect* lua2rect(lua_State* L, int index, SkRect* rect) { |
| rect->set(getfield_scalar_default(L, index, "left", 0), |
| getfield_scalar_default(L, index, "top", 0), |
| getfield_scalar(L, index, "right"), |
| getfield_scalar(L, index, "bottom")); |
| return rect; |
| } |
| |
| static int lcanvas_drawColor(lua_State* L) { |
| get_ref<SkCanvas>(L, 1)->drawColor(lua2color(L, 2)); |
| return 0; |
| } |
| |
| static int lcanvas_drawRect(lua_State* L) { |
| SkRect rect; |
| get_ref<SkCanvas>(L, 1)->drawRect(*lua2rect(L, 2, &rect), |
| *get_obj<SkPaint>(L, 3)); |
| return 0; |
| } |
| |
| static int lcanvas_drawOval(lua_State* L) { |
| SkRect rect; |
| get_ref<SkCanvas>(L, 1)->drawOval(*lua2rect(L, 2, &rect), |
| *get_obj<SkPaint>(L, 3)); |
| return 0; |
| } |
| |
| static int lcanvas_drawCircle(lua_State* L) { |
| get_ref<SkCanvas>(L, 1)->drawCircle(lua2scalar(L, 2), |
| lua2scalar(L, 3), |
| lua2scalar(L, 4), |
| *get_obj<SkPaint>(L, 5)); |
| return 0; |
| } |
| |
| static int lcanvas_drawImage(lua_State* L) { |
| SkCanvas* canvas = get_ref<SkCanvas>(L, 1); |
| SkImage* image = get_ref<SkImage>(L, 2); |
| if (NULL == image) { |
| return 0; |
| } |
| SkScalar x = lua2scalar(L, 3); |
| SkScalar y = lua2scalar(L, 4); |
| |
| SkPaint paint; |
| const SkPaint* paintPtr = NULL; |
| if (lua_isnumber(L, 5)) { |
| paint.setAlpha(SkScalarRoundToInt(lua2scalar(L, 5) * 255)); |
| paintPtr = &paint; |
| } |
| image->draw(canvas, x, y, paintPtr); |
| return 0; |
| } |
| |
| static int lcanvas_drawPath(lua_State* L) { |
| get_ref<SkCanvas>(L, 1)->drawPath(*get_obj<SkPath>(L, 2), |
| *get_obj<SkPaint>(L, 3)); |
| return 0; |
| } |
| |
| static int lcanvas_drawText(lua_State* L) { |
| if (lua_gettop(L) < 5) { |
| return 0; |
| } |
| |
| if (lua_isstring(L, 2) && lua_isnumber(L, 3) && lua_isnumber(L, 4)) { |
| size_t len; |
| const char* text = lua_tolstring(L, 2, &len); |
| get_ref<SkCanvas>(L, 1)->drawText(text, len, |
| lua2scalar(L, 3), lua2scalar(L, 4), |
| *get_obj<SkPaint>(L, 5)); |
| } |
| return 0; |
| } |
| |
| static int lcanvas_getSaveCount(lua_State* L) { |
| lua_pushnumber(L, get_ref<SkCanvas>(L, 1)->getSaveCount()); |
| return 1; |
| } |
| |
| static int lcanvas_getTotalMatrix(lua_State* L) { |
| SkLua(L).pushMatrix(get_ref<SkCanvas>(L, 1)->getTotalMatrix()); |
| return 1; |
| } |
| |
| static int lcanvas_getClipStack(lua_State* L) { |
| SkLua(L).pushClipStack(*get_ref<SkCanvas>(L, 1)->getClipStack()); |
| return 1; |
| } |
| |
| int SkLua::lcanvas_getReducedClipStack(lua_State* L) { |
| #if SK_SUPPORT_GPU |
| const SkCanvas* canvas = get_ref<SkCanvas>(L, 1); |
| SkISize layerSize = canvas->getTopLayerSize(); |
| SkIPoint layerOrigin = canvas->getTopLayerOrigin(); |
| SkIRect queryBounds = SkIRect::MakeXYWH(layerOrigin.fX, layerOrigin.fY, |
| layerSize.fWidth, layerSize.fHeight); |
| |
| GrReducedClip::ElementList elements; |
| GrReducedClip::InitialState initialState; |
| int32_t genID; |
| SkIRect resultBounds; |
| |
| const SkClipStack& stack = *canvas->getClipStack(); |
| |
| GrReducedClip::ReduceClipStack(stack, |
| queryBounds, |
| &elements, |
| &genID, |
| &initialState, |
| &resultBounds, |
| NULL); |
| |
| GrReducedClip::ElementList::Iter iter(elements); |
| int i = 0; |
| lua_newtable(L); |
| while(NULL != iter.get()) { |
| SkLua(L).pushClipStackElement(*iter.get()); |
| iter.next(); |
| lua_rawseti(L, -2, ++i); |
| } |
| // Currently this only returns the element list to lua, not the initial state or result bounds. |
| // It could return these as additional items on the lua stack. |
| return 1; |
| #else |
| return 0; |
| #endif |
| } |
| |
| static int lcanvas_save(lua_State* L) { |
| lua_pushinteger(L, get_ref<SkCanvas>(L, 1)->save()); |
| return 1; |
| } |
| |
| static int lcanvas_restore(lua_State* L) { |
| get_ref<SkCanvas>(L, 1)->restore(); |
| return 0; |
| } |
| |
| static int lcanvas_scale(lua_State* L) { |
| SkScalar sx = lua2scalar_def(L, 2, 1); |
| SkScalar sy = lua2scalar_def(L, 3, sx); |
| get_ref<SkCanvas>(L, 1)->scale(sx, sy); |
| return 0; |
| } |
| |
| static int lcanvas_translate(lua_State* L) { |
| SkScalar tx = lua2scalar_def(L, 2, 0); |
| SkScalar ty = lua2scalar_def(L, 3, 0); |
| get_ref<SkCanvas>(L, 1)->translate(tx, ty); |
| return 0; |
| } |
| |
| static int lcanvas_rotate(lua_State* L) { |
| SkScalar degrees = lua2scalar_def(L, 2, 0); |
| get_ref<SkCanvas>(L, 1)->rotate(degrees); |
| return 0; |
| } |
| |
| static int lcanvas_gc(lua_State* L) { |
| get_ref<SkCanvas>(L, 1)->unref(); |
| return 0; |
| } |
| |
| const struct luaL_Reg gSkCanvas_Methods[] = { |
| { "drawColor", lcanvas_drawColor }, |
| { "drawRect", lcanvas_drawRect }, |
| { "drawOval", lcanvas_drawOval }, |
| { "drawCircle", lcanvas_drawCircle }, |
| { "drawImage", lcanvas_drawImage }, |
| { "drawPath", lcanvas_drawPath }, |
| { "drawText", lcanvas_drawText }, |
| { "getSaveCount", lcanvas_getSaveCount }, |
| { "getTotalMatrix", lcanvas_getTotalMatrix }, |
| { "getClipStack", lcanvas_getClipStack }, |
| #if SK_SUPPORT_GPU |
| { "getReducedClipStack", SkLua::lcanvas_getReducedClipStack }, |
| #endif |
| { "save", lcanvas_save }, |
| { "restore", lcanvas_restore }, |
| { "scale", lcanvas_scale }, |
| { "translate", lcanvas_translate }, |
| { "rotate", lcanvas_rotate }, |
| { "__gc", lcanvas_gc }, |
| { NULL, NULL } |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static int ldocument_beginPage(lua_State* L) { |
| const SkRect* contentPtr = NULL; |
| push_ref(L, get_ref<SkDocument>(L, 1)->beginPage(lua2scalar(L, 2), |
| lua2scalar(L, 3), |
| contentPtr)); |
| return 1; |
| } |
| |
| static int ldocument_endPage(lua_State* L) { |
| get_ref<SkDocument>(L, 1)->endPage(); |
| return 0; |
| } |
| |
| static int ldocument_close(lua_State* L) { |
| get_ref<SkDocument>(L, 1)->close(); |
| return 0; |
| } |
| |
| static int ldocument_gc(lua_State* L) { |
| get_ref<SkDocument>(L, 1)->unref(); |
| return 0; |
| } |
| |
| static const struct luaL_Reg gSkDocument_Methods[] = { |
| { "beginPage", ldocument_beginPage }, |
| { "endPage", ldocument_endPage }, |
| { "close", ldocument_close }, |
| { "__gc", ldocument_gc }, |
| { NULL, NULL } |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static int lpaint_isAntiAlias(lua_State* L) { |
| lua_pushboolean(L, get_obj<SkPaint>(L, 1)->isAntiAlias()); |
| return 1; |
| } |
| |
| static int lpaint_setAntiAlias(lua_State* L) { |
| get_obj<SkPaint>(L, 1)->setAntiAlias(lua2bool(L, 2)); |
| return 0; |
| } |
| |
| static int lpaint_isDither(lua_State* L) { |
| lua_pushboolean(L, get_obj<SkPaint>(L, 1)->isDither()); |
| return 1; |
| } |
| |
| static int lpaint_isUnderlineText(lua_State* L) { |
| lua_pushboolean(L, get_obj<SkPaint>(L, 1)->isUnderlineText()); |
| return 1; |
| } |
| |
| static int lpaint_isStrikeThruText(lua_State* L) { |
| lua_pushboolean(L, get_obj<SkPaint>(L, 1)->isStrikeThruText()); |
| return 1; |
| } |
| |
| static int lpaint_isFakeBoldText(lua_State* L) { |
| lua_pushboolean(L, get_obj<SkPaint>(L, 1)->isFakeBoldText()); |
| return 1; |
| } |
| |
| static int lpaint_isLinearText(lua_State* L) { |
| lua_pushboolean(L, get_obj<SkPaint>(L, 1)->isLinearText()); |
| return 1; |
| } |
| |
| static int lpaint_isSubpixelText(lua_State* L) { |
| lua_pushboolean(L, get_obj<SkPaint>(L, 1)->isSubpixelText()); |
| return 1; |
| } |
| |
| static int lpaint_isDevKernText(lua_State* L) { |
| lua_pushboolean(L, get_obj<SkPaint>(L, 1)->isDevKernText()); |
| return 1; |
| } |
| |
| static int lpaint_isLCDRenderText(lua_State* L) { |
| lua_pushboolean(L, get_obj<SkPaint>(L, 1)->isLCDRenderText()); |
| return 1; |
| } |
| |
| static int lpaint_isEmbeddedBitmapText(lua_State* L) { |
| lua_pushboolean(L, get_obj<SkPaint>(L, 1)->isEmbeddedBitmapText()); |
| return 1; |
| } |
| |
| static int lpaint_isAutohinted(lua_State* L) { |
| lua_pushboolean(L, get_obj<SkPaint>(L, 1)->isAutohinted()); |
| return 1; |
| } |
| |
| static int lpaint_isVerticalText(lua_State* L) { |
| lua_pushboolean(L, get_obj<SkPaint>(L, 1)->isVerticalText()); |
| return 1; |
| } |
| |
| static int lpaint_getColor(lua_State* L) { |
| SkLua(L).pushColor(get_obj<SkPaint>(L, 1)->getColor()); |
| return 1; |
| } |
| |
| static int lpaint_setColor(lua_State* L) { |
| get_obj<SkPaint>(L, 1)->setColor(lua2color(L, 2)); |
| return 0; |
| } |
| |
| static int lpaint_getTextSize(lua_State* L) { |
| SkLua(L).pushScalar(get_obj<SkPaint>(L, 1)->getTextSize()); |
| return 1; |
| } |
| |
| static int lpaint_getTextScaleX(lua_State* L) { |
| SkLua(L).pushScalar(get_obj<SkPaint>(L, 1)->getTextScaleX()); |
| return 1; |
| } |
| |
| static int lpaint_getTextSkewX(lua_State* L) { |
| SkLua(L).pushScalar(get_obj<SkPaint>(L, 1)->getTextSkewX()); |
| return 1; |
| } |
| |
| static int lpaint_setTextSize(lua_State* L) { |
| get_obj<SkPaint>(L, 1)->setTextSize(lua2scalar(L, 2)); |
| return 0; |
| } |
| |
| static int lpaint_getTypeface(lua_State* L) { |
| push_ref(L, get_obj<SkPaint>(L, 1)->getTypeface()); |
| return 1; |
| } |
| |
| static int lpaint_setTypeface(lua_State* L) { |
| get_obj<SkPaint>(L, 1)->setTypeface(get_ref<SkTypeface>(L, 2)); |
| return 0; |
| } |
| |
| static int lpaint_getHinting(lua_State* L) { |
| SkLua(L).pushU32(get_obj<SkPaint>(L, 1)->getHinting()); |
| return 1; |
| } |
| |
| static int lpaint_getFontID(lua_State* L) { |
| SkTypeface* face = get_obj<SkPaint>(L, 1)->getTypeface(); |
| SkLua(L).pushU32(SkTypeface::UniqueID(face)); |
| return 1; |
| } |
| |
| static const struct { |
| const char* fLabel; |
| SkPaint::Align fAlign; |
| } gAlignRec[] = { |
| { "left", SkPaint::kLeft_Align }, |
| { "center", SkPaint::kCenter_Align }, |
| { "right", SkPaint::kRight_Align }, |
| }; |
| |
| static int lpaint_getTextAlign(lua_State* L) { |
| SkPaint::Align align = get_obj<SkPaint>(L, 1)->getTextAlign(); |
| for (size_t i = 0; i < SK_ARRAY_COUNT(gAlignRec); ++i) { |
| if (gAlignRec[i].fAlign == align) { |
| lua_pushstring(L, gAlignRec[i].fLabel); |
| return 1; |
| } |
| } |
| return 0; |
| } |
| |
| static int lpaint_setTextAlign(lua_State* L) { |
| if (lua_isstring(L, 2)) { |
| size_t len; |
| const char* label = lua_tolstring(L, 2, &len); |
| |
| for (size_t i = 0; i < SK_ARRAY_COUNT(gAlignRec); ++i) { |
| if (!strcmp(gAlignRec[i].fLabel, label)) { |
| get_obj<SkPaint>(L, 1)->setTextAlign(gAlignRec[i].fAlign); |
| break; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| static int lpaint_getStroke(lua_State* L) { |
| lua_pushboolean(L, SkPaint::kStroke_Style == get_obj<SkPaint>(L, 1)->getStyle()); |
| return 1; |
| } |
| |
| static int lpaint_setStroke(lua_State* L) { |
| SkPaint::Style style; |
| |
| if (lua_toboolean(L, 2)) { |
| style = SkPaint::kStroke_Style; |
| } else { |
| style = SkPaint::kFill_Style; |
| } |
| get_obj<SkPaint>(L, 1)->setStyle(style); |
| return 0; |
| } |
| |
| static int lpaint_getStrokeCap(lua_State* L) { |
| SkLua(L).pushU32(get_obj<SkPaint>(L, 1)->getStrokeCap()); |
| return 1; |
| } |
| |
| static int lpaint_getStrokeJoin(lua_State* L) { |
| SkLua(L).pushU32(get_obj<SkPaint>(L, 1)->getStrokeJoin()); |
| return 1; |
| } |
| |
| static int lpaint_getTextEncoding(lua_State* L) { |
| SkLua(L).pushU32(get_obj<SkPaint>(L, 1)->getTextEncoding()); |
| return 1; |
| } |
| |
| static int lpaint_getStrokeWidth(lua_State* L) { |
| SkLua(L).pushScalar(get_obj<SkPaint>(L, 1)->getStrokeWidth()); |
| return 1; |
| } |
| |
| static int lpaint_setStrokeWidth(lua_State* L) { |
| get_obj<SkPaint>(L, 1)->setStrokeWidth(lua2scalar(L, 2)); |
| return 0; |
| } |
| |
| static int lpaint_getStrokeMiter(lua_State* L) { |
| SkLua(L).pushScalar(get_obj<SkPaint>(L, 1)->getStrokeMiter()); |
| return 1; |
| } |
| |
| static int lpaint_measureText(lua_State* L) { |
| if (lua_isstring(L, 2)) { |
| size_t len; |
| const char* text = lua_tolstring(L, 2, &len); |
| SkLua(L).pushScalar(get_obj<SkPaint>(L, 1)->measureText(text, len)); |
| return 1; |
| } |
| return 0; |
| } |
| |
| struct FontMetrics { |
| SkScalar fTop; //!< The greatest distance above the baseline for any glyph (will be <= 0) |
| SkScalar fAscent; //!< The recommended distance above the baseline (will be <= 0) |
| SkScalar fDescent; //!< The recommended distance below the baseline (will be >= 0) |
| SkScalar fBottom; //!< The greatest distance below the baseline for any glyph (will be >= 0) |
| SkScalar fLeading; //!< The recommended distance to add between lines of text (will be >= 0) |
| SkScalar fAvgCharWidth; //!< the average charactor width (>= 0) |
| SkScalar fXMin; //!< The minimum bounding box x value for all glyphs |
| SkScalar fXMax; //!< The maximum bounding box x value for all glyphs |
| SkScalar fXHeight; //!< the height of an 'x' in px, or 0 if no 'x' in face |
| }; |
| |
| static int lpaint_getFontMetrics(lua_State* L) { |
| SkPaint::FontMetrics fm; |
| SkScalar height = get_obj<SkPaint>(L, 1)->getFontMetrics(&fm); |
| |
| lua_newtable(L); |
| setfield_scalar(L, "top", fm.fTop); |
| setfield_scalar(L, "ascent", fm.fAscent); |
| setfield_scalar(L, "descent", fm.fDescent); |
| setfield_scalar(L, "bottom", fm.fBottom); |
| setfield_scalar(L, "leading", fm.fLeading); |
| SkLua(L).pushScalar(height); |
| return 2; |
| } |
| |
| static int lpaint_getEffects(lua_State* L) { |
| const SkPaint* paint = get_obj<SkPaint>(L, 1); |
| |
| lua_newtable(L); |
| setfield_bool_if(L, "looper", !!paint->getLooper()); |
| setfield_bool_if(L, "pathEffect", !!paint->getPathEffect()); |
| setfield_bool_if(L, "rasterizer", !!paint->getRasterizer()); |
| setfield_bool_if(L, "maskFilter", !!paint->getMaskFilter()); |
| setfield_bool_if(L, "shader", !!paint->getShader()); |
| setfield_bool_if(L, "colorFilter", !!paint->getColorFilter()); |
| setfield_bool_if(L, "imageFilter", !!paint->getImageFilter()); |
| setfield_bool_if(L, "xfermode", !!paint->getXfermode()); |
| return 1; |
| } |
| |
| static int lpaint_getShader(lua_State* L) { |
| const SkPaint* paint = get_obj<SkPaint>(L, 1); |
| SkShader* shader = paint->getShader(); |
| if (shader) { |
| push_ref(L, shader); |
| return 1; |
| } |
| return 0; |
| } |
| |
| static int lpaint_getPathEffect(lua_State* L) { |
| const SkPaint* paint = get_obj<SkPaint>(L, 1); |
| SkPathEffect* pe = paint->getPathEffect(); |
| if (pe) { |
| push_ref(L, pe); |
| return 1; |
| } |
| return 0; |
| } |
| |
| static int lpaint_gc(lua_State* L) { |
| get_obj<SkPaint>(L, 1)->~SkPaint(); |
| return 0; |
| } |
| |
| static const struct luaL_Reg gSkPaint_Methods[] = { |
| { "isAntiAlias", lpaint_isAntiAlias }, |
| { "setAntiAlias", lpaint_setAntiAlias }, |
| { "isDither", lpaint_isDither }, |
| { "isUnderlineText", lpaint_isUnderlineText }, |
| { "isStrikeThruText", lpaint_isStrikeThruText }, |
| { "isFakeBoldText", lpaint_isFakeBoldText }, |
| { "isLinearText", lpaint_isLinearText }, |
| { "isSubpixelText", lpaint_isSubpixelText }, |
| { "isDevKernText", lpaint_isDevKernText }, |
| { "isLCDRenderText", lpaint_isLCDRenderText }, |
| { "isEmbeddedBitmapText", lpaint_isEmbeddedBitmapText }, |
| { "isAutohinted", lpaint_isAutohinted }, |
| { "isVerticalText", lpaint_isVerticalText }, |
| { "getColor", lpaint_getColor }, |
| { "setColor", lpaint_setColor }, |
| { "getTextSize", lpaint_getTextSize }, |
| { "setTextSize", lpaint_setTextSize }, |
| { "getTextScaleX", lpaint_getTextScaleX }, |
| { "getTextSkewX", lpaint_getTextSkewX }, |
| { "getTypeface", lpaint_getTypeface }, |
| { "setTypeface", lpaint_setTypeface }, |
| { "getHinting", lpaint_getHinting }, |
| { "getFontID", lpaint_getFontID }, |
| { "getTextAlign", lpaint_getTextAlign }, |
| { "setTextAlign", lpaint_setTextAlign }, |
| { "getStroke", lpaint_getStroke }, |
| { "setStroke", lpaint_setStroke }, |
| { "getStrokeCap", lpaint_getStrokeCap }, |
| { "getStrokeJoin", lpaint_getStrokeJoin }, |
| { "getTextEncoding", lpaint_getTextEncoding }, |
| { "getStrokeWidth", lpaint_getStrokeWidth }, |
| { "setStrokeWidth", lpaint_setStrokeWidth }, |
| { "getStrokeMiter", lpaint_getStrokeMiter }, |
| { "measureText", lpaint_measureText }, |
| { "getFontMetrics", lpaint_getFontMetrics }, |
| { "getEffects", lpaint_getEffects }, |
| { "getShader", lpaint_getShader }, |
| { "getPathEffect", lpaint_getPathEffect }, |
| { "__gc", lpaint_gc }, |
| { NULL, NULL } |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static const char* mode2string(SkShader::TileMode mode) { |
| static const char* gNames[] = { "clamp", "repeat", "mirror" }; |
| SkASSERT((unsigned)mode < SK_ARRAY_COUNT(gNames)); |
| return gNames[mode]; |
| } |
| |
| static const char* gradtype2string(SkShader::GradientType t) { |
| static const char* gNames[] = { |
| "none", "color", "linear", "radial", "radial2", "sweep", "conical" |
| }; |
| SkASSERT((unsigned)t < SK_ARRAY_COUNT(gNames)); |
| return gNames[t]; |
| } |
| |
| static int lshader_isOpaque(lua_State* L) { |
| SkShader* shader = get_ref<SkShader>(L, 1); |
| return shader && shader->isOpaque(); |
| } |
| |
| static int lshader_asABitmap(lua_State* L) { |
| SkShader* shader = get_ref<SkShader>(L, 1); |
| if (shader) { |
| SkBitmap bm; |
| SkMatrix matrix; |
| SkShader::TileMode modes[2]; |
| switch (shader->asABitmap(&bm, &matrix, modes)) { |
| case SkShader::kDefault_BitmapType: |
| lua_newtable(L); |
| setfield_number(L, "genID", bm.pixelRef() ? bm.pixelRef()->getGenerationID() : 0); |
| setfield_number(L, "width", bm.width()); |
| setfield_number(L, "height", bm.height()); |
| setfield_string(L, "tileX", mode2string(modes[0])); |
| setfield_string(L, "tileY", mode2string(modes[1])); |
| return 1; |
| default: |
| break; |
| } |
| } |
| return 0; |
| } |
| |
| static int lshader_asAGradient(lua_State* L) { |
| SkShader* shader = get_ref<SkShader>(L, 1); |
| if (shader) { |
| SkShader::GradientInfo info; |
| sk_bzero(&info, sizeof(info)); |
| |
| SkColor colors[3]; // hacked in for extracting info on 3 color case. |
| SkScalar pos[3]; |
| |
| info.fColorCount = 3; |
| info.fColors = &colors[0]; |
| info.fColorOffsets = &pos[0]; |
| |
| SkShader::GradientType t = shader->asAGradient(&info); |
| |
| if (SkShader::kNone_GradientType != t) { |
| lua_newtable(L); |
| setfield_string(L, "type", gradtype2string(t)); |
| setfield_number(L, "colorCount", info.fColorCount); |
| setfield_string(L, "tile", mode2string(info.fTileMode)); |
| |
| if (info.fColorCount == 3){ |
| setfield_number(L, "midPos", pos[1]); |
| } |
| |
| return 1; |
| } |
| } |
| return 0; |
| } |
| |
| static int lshader_gc(lua_State* L) { |
| get_ref<SkShader>(L, 1)->unref(); |
| return 0; |
| } |
| |
| static const struct luaL_Reg gSkShader_Methods[] = { |
| { "isOpaque", lshader_isOpaque }, |
| { "asABitmap", lshader_asABitmap }, |
| { "asAGradient", lshader_asAGradient }, |
| { "__gc", lshader_gc }, |
| { NULL, NULL } |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static int lpatheffect_asADash(lua_State* L) { |
| SkPathEffect* pe = get_ref<SkPathEffect>(L, 1); |
| if (pe) { |
| SkPathEffect::DashInfo info; |
| SkPathEffect::DashType dashType = pe->asADash(&info); |
| if (SkPathEffect::kDash_DashType == dashType) { |
| SkAutoTArray<SkScalar> intervals(info.fCount); |
| info.fIntervals = intervals.get(); |
| pe->asADash(&info); |
| SkLua(L).pushDash(info); |
| return 1; |
| } |
| } |
| return 0; |
| } |
| |
| static int lpatheffect_gc(lua_State* L) { |
| get_ref<SkPathEffect>(L, 1)->unref(); |
| return 0; |
| } |
| |
| static const struct luaL_Reg gSkPathEffect_Methods[] = { |
| { "asADash", lpatheffect_asADash }, |
| { "__gc", lpatheffect_gc }, |
| { NULL, NULL } |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static int lmatrix_getType(lua_State* L) { |
| SkMatrix::TypeMask mask = get_obj<SkMatrix>(L, 1)->getType(); |
| |
| lua_newtable(L); |
| setfield_boolean(L, "translate", SkToBool(mask & SkMatrix::kTranslate_Mask)); |
| setfield_boolean(L, "scale", SkToBool(mask & SkMatrix::kScale_Mask)); |
| setfield_boolean(L, "affine", SkToBool(mask & SkMatrix::kAffine_Mask)); |
| setfield_boolean(L, "perspective", SkToBool(mask & SkMatrix::kPerspective_Mask)); |
| return 1; |
| } |
| |
| static int lmatrix_getScaleX(lua_State* L) { |
| lua_pushnumber(L, get_obj<SkMatrix>(L,1)->getScaleX()); |
| return 1; |
| } |
| |
| static int lmatrix_getScaleY(lua_State* L) { |
| lua_pushnumber(L, get_obj<SkMatrix>(L,1)->getScaleY()); |
| return 1; |
| } |
| |
| static int lmatrix_getTranslateX(lua_State* L) { |
| lua_pushnumber(L, get_obj<SkMatrix>(L,1)->getTranslateX()); |
| return 1; |
| } |
| |
| static int lmatrix_getTranslateY(lua_State* L) { |
| lua_pushnumber(L, get_obj<SkMatrix>(L,1)->getTranslateY()); |
| return 1; |
| } |
| |
| static const struct luaL_Reg gSkMatrix_Methods[] = { |
| { "getType", lmatrix_getType }, |
| { "getScaleX", lmatrix_getScaleX }, |
| { "getScaleY", lmatrix_getScaleY }, |
| { "getTranslateX", lmatrix_getTranslateX }, |
| { "getTranslateY", lmatrix_getTranslateY }, |
| { NULL, NULL } |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static int lpath_getBounds(lua_State* L) { |
| SkLua(L).pushRect(get_obj<SkPath>(L, 1)->getBounds()); |
| return 1; |
| } |
| |
| static const char* fill_type_to_str(SkPath::FillType fill) { |
| switch (fill) { |
| case SkPath::kEvenOdd_FillType: |
| return "even-odd"; |
| case SkPath::kWinding_FillType: |
| return "winding"; |
| case SkPath::kInverseEvenOdd_FillType: |
| return "inverse-even-odd"; |
| case SkPath::kInverseWinding_FillType: |
| return "inverse-winding"; |
| } |
| return "unknown"; |
| } |
| |
| static int lpath_getFillType(lua_State* L) { |
| SkPath::FillType fill = get_obj<SkPath>(L, 1)->getFillType(); |
| SkLua(L).pushString(fill_type_to_str(fill)); |
| return 1; |
| } |
| |
| static SkString segment_masks_to_str(uint32_t segmentMasks) { |
| SkString result; |
| bool first = true; |
| if (SkPath::kLine_SegmentMask & segmentMasks) { |
| result.append("line"); |
| first = false; |
| SkDEBUGCODE(segmentMasks &= ~SkPath::kLine_SegmentMask;) |
| } |
| if (SkPath::kQuad_SegmentMask & segmentMasks) { |
| if (!first) { |
| result.append(" "); |
| } |
| result.append("quad"); |
| first = false; |
| SkDEBUGCODE(segmentMasks &= ~SkPath::kQuad_SegmentMask;) |
| } |
| if (SkPath::kConic_SegmentMask & segmentMasks) { |
| if (!first) { |
| result.append(" "); |
| } |
| result.append("conic"); |
| first = false; |
| SkDEBUGCODE(segmentMasks &= ~SkPath::kConic_SegmentMask;) |
| } |
| if (SkPath::kCubic_SegmentMask & segmentMasks) { |
| if (!first) { |
| result.append(" "); |
| } |
| result.append("cubic"); |
| SkDEBUGCODE(segmentMasks &= ~SkPath::kCubic_SegmentMask;) |
| } |
| SkASSERT(0 == segmentMasks); |
| return result; |
| } |
| |
| static int lpath_getSegmentTypes(lua_State* L) { |
| uint32_t segMasks = get_obj<SkPath>(L, 1)->getSegmentMasks(); |
| SkLua(L).pushString(segment_masks_to_str(segMasks)); |
| return 1; |
| } |
| |
| static int lpath_isConvex(lua_State* L) { |
| bool isConvex = SkPath::kConvex_Convexity == get_obj<SkPath>(L, 1)->getConvexity(); |
| SkLua(L).pushBool(isConvex); |
| return 1; |
| } |
| |
| static int lpath_isEmpty(lua_State* L) { |
| lua_pushboolean(L, get_obj<SkPath>(L, 1)->isEmpty()); |
| return 1; |
| } |
| |
| static int lpath_isRect(lua_State* L) { |
| SkRect r; |
| bool pred = get_obj<SkPath>(L, 1)->isRect(&r); |
| int ret_count = 1; |
| lua_pushboolean(L, pred); |
| if (pred) { |
| SkLua(L).pushRect(r); |
| ret_count += 1; |
| } |
| return ret_count; |
| } |
| |
| static const char* dir2string(SkPath::Direction dir) { |
| static const char* gStr[] = { |
| "unknown", "cw", "ccw" |
| }; |
| SkASSERT((unsigned)dir < SK_ARRAY_COUNT(gStr)); |
| return gStr[dir]; |
| } |
| |
| static int lpath_isNestedRects(lua_State* L) { |
| SkRect rects[2]; |
| SkPath::Direction dirs[2]; |
| bool pred = get_obj<SkPath>(L, 1)->isNestedRects(rects, dirs); |
| int ret_count = 1; |
| lua_pushboolean(L, pred); |
| if (pred) { |
| SkLua lua(L); |
| lua.pushRect(rects[0]); |
| lua.pushRect(rects[1]); |
| lua_pushstring(L, dir2string(dirs[0])); |
| lua_pushstring(L, dir2string(dirs[0])); |
| ret_count += 4; |
| } |
| return ret_count; |
| } |
| |
| static int lpath_countPoints(lua_State* L) { |
| lua_pushinteger(L, get_obj<SkPath>(L, 1)->countPoints()); |
| return 1; |
| } |
| |
| static int lpath_reset(lua_State* L) { |
| get_obj<SkPath>(L, 1)->reset(); |
| return 0; |
| } |
| |
| static int lpath_moveTo(lua_State* L) { |
| get_obj<SkPath>(L, 1)->moveTo(lua2scalar(L, 2), lua2scalar(L, 3)); |
| return 0; |
| } |
| |
| static int lpath_lineTo(lua_State* L) { |
| get_obj<SkPath>(L, 1)->lineTo(lua2scalar(L, 2), lua2scalar(L, 3)); |
| return 0; |
| } |
| |
| static int lpath_quadTo(lua_State* L) { |
| get_obj<SkPath>(L, 1)->quadTo(lua2scalar(L, 2), lua2scalar(L, 3), |
| lua2scalar(L, 4), lua2scalar(L, 5)); |
| return 0; |
| } |
| |
| static int lpath_cubicTo(lua_State* L) { |
| get_obj<SkPath>(L, 1)->cubicTo(lua2scalar(L, 2), lua2scalar(L, 3), |
| lua2scalar(L, 4), lua2scalar(L, 5), |
| lua2scalar(L, 6), lua2scalar(L, 7)); |
| return 0; |
| } |
| |
| static int lpath_close(lua_State* L) { |
| get_obj<SkPath>(L, 1)->close(); |
| return 0; |
| } |
| |
| static int lpath_gc(lua_State* L) { |
| get_obj<SkPath>(L, 1)->~SkPath(); |
| return 0; |
| } |
| |
| static const struct luaL_Reg gSkPath_Methods[] = { |
| { "getBounds", lpath_getBounds }, |
| { "getFillType", lpath_getFillType }, |
| { "getSegmentTypes", lpath_getSegmentTypes }, |
| { "isConvex", lpath_isConvex }, |
| { "isEmpty", lpath_isEmpty }, |
| { "isRect", lpath_isRect }, |
| { "isNestedRects", lpath_isNestedRects }, |
| { "countPoints", lpath_countPoints }, |
| { "reset", lpath_reset }, |
| { "moveTo", lpath_moveTo }, |
| { "lineTo", lpath_lineTo }, |
| { "quadTo", lpath_quadTo }, |
| { "cubicTo", lpath_cubicTo }, |
| { "close", lpath_close }, |
| { "__gc", lpath_gc }, |
| { NULL, NULL } |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static const char* rrect_type(const SkRRect& rr) { |
| switch (rr.getType()) { |
| case SkRRect::kUnknown_Type: return "unknown"; |
| case SkRRect::kEmpty_Type: return "empty"; |
| case SkRRect::kRect_Type: return "rect"; |
| case SkRRect::kOval_Type: return "oval"; |
| case SkRRect::kSimple_Type: return "simple"; |
| case SkRRect::kNinePatch_Type: return "nine-patch"; |
| case SkRRect::kComplex_Type: return "complex"; |
| } |
| SkDEBUGFAIL("never get here"); |
| return ""; |
| } |
| |
| static int lrrect_rect(lua_State* L) { |
| SkLua(L).pushRect(get_obj<SkRRect>(L, 1)->rect()); |
| return 1; |
| } |
| |
| static int lrrect_type(lua_State* L) { |
| lua_pushstring(L, rrect_type(*get_obj<SkRRect>(L, 1))); |
| return 1; |
| } |
| |
| static int lrrect_radii(lua_State* L) { |
| int corner = SkToInt(lua_tointeger(L, 2)); |
| SkVector v; |
| if (corner < 0 || corner > 3) { |
| SkDebugf("bad corner index %d", corner); |
| v.set(0, 0); |
| } else { |
| v = get_obj<SkRRect>(L, 1)->radii((SkRRect::Corner)corner); |
| } |
| lua_pushnumber(L, v.fX); |
| lua_pushnumber(L, v.fY); |
| return 2; |
| } |
| |
| static int lrrect_gc(lua_State* L) { |
| get_obj<SkRRect>(L, 1)->~SkRRect(); |
| return 0; |
| } |
| |
| static const struct luaL_Reg gSkRRect_Methods[] = { |
| { "rect", lrrect_rect }, |
| { "type", lrrect_type }, |
| { "radii", lrrect_radii }, |
| { "__gc", lrrect_gc }, |
| { NULL, NULL } |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static int limage_width(lua_State* L) { |
| lua_pushinteger(L, get_ref<SkImage>(L, 1)->width()); |
| return 1; |
| } |
| |
| static int limage_height(lua_State* L) { |
| lua_pushinteger(L, get_ref<SkImage>(L, 1)->height()); |
| return 1; |
| } |
| |
| static int limage_gc(lua_State* L) { |
| get_ref<SkImage>(L, 1)->unref(); |
| return 0; |
| } |
| |
| static const struct luaL_Reg gSkImage_Methods[] = { |
| { "width", limage_width }, |
| { "height", limage_height }, |
| { "__gc", limage_gc }, |
| { NULL, NULL } |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static int ltypeface_gc(lua_State* L) { |
| SkSafeUnref(get_ref<SkTypeface>(L, 1)); |
| return 0; |
| } |
| |
| static const struct luaL_Reg gSkTypeface_Methods[] = { |
| { "__gc", ltypeface_gc }, |
| { NULL, NULL } |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| class AutoCallLua { |
| public: |
| AutoCallLua(lua_State* L, const char func[], const char verb[]) : fL(L) { |
| lua_getglobal(L, func); |
| if (!lua_isfunction(L, -1)) { |
| int t = lua_type(L, -1); |
| SkDebugf("--- expected function %d\n", t); |
| } |
| |
| lua_newtable(L); |
| setfield_string(L, "verb", verb); |
| } |
| |
| ~AutoCallLua() { |
| if (lua_pcall(fL, 1, 0, 0) != LUA_OK) { |
| SkDebugf("lua err: %s\n", lua_tostring(fL, -1)); |
| } |
| lua_settop(fL, -1); |
| } |
| |
| private: |
| lua_State* fL; |
| }; |
| |
| #define AUTO_LUA(verb) AutoCallLua acl(fL, fFunc.c_str(), verb) |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static int lsk_newDocumentPDF(lua_State* L) { |
| const char* file = NULL; |
| if (lua_gettop(L) > 0 && lua_isstring(L, 1)) { |
| file = lua_tolstring(L, 1, NULL); |
| } |
| |
| SkDocument* doc = SkDocument::CreatePDF(file); |
| if (NULL == doc) { |
| // do I need to push a nil on the stack and return 1? |
| return 0; |
| } else { |
| push_ref(L, doc); |
| doc->unref(); |
| return 1; |
| } |
| } |
| |
| static int lsk_newPaint(lua_State* L) { |
| push_new<SkPaint>(L); |
| return 1; |
| } |
| |
| static int lsk_newPath(lua_State* L) { |
| push_new<SkPath>(L); |
| return 1; |
| } |
| |
| static int lsk_newRRect(lua_State* L) { |
| SkRRect* rr = push_new<SkRRect>(L); |
| rr->setEmpty(); |
| return 1; |
| } |
| |
| static int lsk_newTypeface(lua_State* L) { |
| const char* name = NULL; |
| int style = SkTypeface::kNormal; |
| |
| int count = lua_gettop(L); |
| if (count > 0 && lua_isstring(L, 1)) { |
| name = lua_tolstring(L, 1, NULL); |
| if (count > 1 && lua_isnumber(L, 2)) { |
| style = lua_tointegerx(L, 2, NULL) & SkTypeface::kBoldItalic; |
| } |
| } |
| |
| SkTypeface* face = SkTypeface::CreateFromName(name, |
| (SkTypeface::Style)style); |
| // SkDebugf("---- name <%s> style=%d, face=%p ref=%d\n", name, style, face, face->getRefCnt()); |
| if (NULL == face) { |
| face = SkTypeface::RefDefault(); |
| } |
| push_ref(L, face); |
| face->unref(); |
| return 1; |
| } |
| |
| static int lsk_loadImage(lua_State* L) { |
| if (lua_gettop(L) > 0 && lua_isstring(L, 1)) { |
| const char* name = lua_tolstring(L, 1, NULL); |
| SkAutoDataUnref data(SkData::NewFromFileName(name)); |
| if (data.get()) { |
| SkImage* image = SkImage::NewEncodedData(data.get()); |
| if (image) { |
| push_ref(L, image); |
| image->unref(); |
| return 1; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| static void register_Sk(lua_State* L) { |
| lua_newtable(L); |
| lua_pushvalue(L, -1); |
| lua_setglobal(L, "Sk"); |
| // the Sk table is still on top |
| |
| setfield_function(L, "newDocumentPDF", lsk_newDocumentPDF); |
| setfield_function(L, "loadImage", lsk_loadImage); |
| setfield_function(L, "newPaint", lsk_newPaint); |
| setfield_function(L, "newPath", lsk_newPath); |
| setfield_function(L, "newRRect", lsk_newRRect); |
| setfield_function(L, "newTypeface", lsk_newTypeface); |
| lua_pop(L, 1); // pop off the Sk table |
| } |
| |
| #define REG_CLASS(L, C) \ |
| do { \ |
| luaL_newmetatable(L, get_mtname<C>()); \ |
| lua_pushvalue(L, -1); \ |
| lua_setfield(L, -2, "__index"); \ |
| luaL_setfuncs(L, g##C##_Methods, 0); \ |
| lua_pop(L, 1); /* pop off the meta-table */ \ |
| } while (0) |
| |
| void SkLua::Load(lua_State* L) { |
| register_Sk(L); |
| REG_CLASS(L, SkCanvas); |
| REG_CLASS(L, SkDocument); |
| REG_CLASS(L, SkImage); |
| REG_CLASS(L, SkPaint); |
| REG_CLASS(L, SkPath); |
| REG_CLASS(L, SkPathEffect); |
| REG_CLASS(L, SkRRect); |
| REG_CLASS(L, SkShader); |
| REG_CLASS(L, SkTypeface); |
| REG_CLASS(L, SkMatrix); |
| } |
| |
| extern "C" int luaopen_skia(lua_State* L); |
| extern "C" int luaopen_skia(lua_State* L) { |
| SkLua::Load(L); |
| return 0; |
| } |