diff options
Diffstat (limited to 'src/utils/ios/SkFontHost_iOS.mm')
-rwxr-xr-x | src/utils/ios/SkFontHost_iOS.mm | 262 |
1 files changed, 0 insertions, 262 deletions
diff --git a/src/utils/ios/SkFontHost_iOS.mm b/src/utils/ios/SkFontHost_iOS.mm deleted file mode 100755 index ae75165a4e..0000000000 --- a/src/utils/ios/SkFontHost_iOS.mm +++ /dev/null @@ -1,262 +0,0 @@ -#import <UIKit/UIKit.h> - -#include "SkStream_NSData.h" -#include "SkTypeface.h" -#include "SkFontHost.h" -#include "SkThread.h" -#include "SkTemplates.h" - -enum FontDesign { - kUnknown_Design, - kSans_FontDesign, - kSerif_FontDesign, - - kIllegal_FontDesign, // never use with a real font -}; - -// returns kIllegal_FontDesign if not found -static FontDesign find_design_from_name(const char name[]) { - static const struct { - const char* fName; - FontDesign fDesign; - } gRec[] = { - { "sans-serif", kSans_FontDesign }, - { "serif", kSerif_FontDesign }, - }; - - for (size_t i = 0; i < SK_ARRAY_COUNT(gRec); i++) { - if (!strcasecmp(name, gRec[i].fName)) { - return gRec[i].fDesign; - } - } - return kIllegal_FontDesign; -} - -struct FontRes { - const char* fName; - SkTypeface::Style fStyle; - FontDesign fDesign; -}; - -static const FontRes gFontRes[] = { - { "DroidSans", SkTypeface::kNormal, kSans_FontDesign }, - { "DroidSans", SkTypeface::kBold, kSans_FontDesign }, - { "DroidSerif-Regular", SkTypeface::kNormal, kSerif_FontDesign }, - { "DroidSerif-Bold", SkTypeface::kBold, kSerif_FontDesign }, -// { "PescaderoPro", SkTypeface::kNormal, kSerif_FontDesign }, -// { "PescaderoPro-Bold", SkTypeface::kBold, kSerif_FontDesign }, -}; -#define FONTRES_COUNT SK_ARRAY_COUNT(gFontRes) - -#define DEFAULT_INDEX_REGULAR 1 -#define DEFAULT_INDEX_BOLD 2 - -/////////////////////////////////////////////////////////////////////////////// - -class SkTypeface_Stream : public SkTypeface { -public: - SkTypeface_Stream(SkStream* stream, Style style); - virtual ~SkTypeface_Stream(); - - SkStream* refStream() { - fStream->ref(); - return fStream; - } - -private: - SkStream* fStream; -}; - -static int32_t gUniqueFontID; - -SkTypeface_Stream::SkTypeface_Stream(SkStream* stream, Style style) -: SkTypeface(style, sk_atomic_inc(&gUniqueFontID) + 1) { - fStream = stream; - fStream->ref(); -} - -SkTypeface_Stream::~SkTypeface_Stream() { - fStream->unref(); -} - -static SkTypeface_Stream* create_from_fontres(const FontRes& res) { - SkStream* stream = SkStream_NSData::CreateFromResource(res.fName, "ttf"); - SkAutoUnref aur(stream); - - return SkNEW_ARGS(SkTypeface_Stream, (stream, res.fStyle)); -} - -/////////////////////////////////////////////////////////////////////////////// - -static int compute_style_distance(SkTypeface::Style a, SkTypeface::Style b) { - int dist = 0; - int diff = a ^ b; - if (diff & SkTypeface::kBold) { - dist += 2; - } - if (diff & SkTypeface::kItalic) { - dist += 1; - } - return dist; -} - -static SkTypeface_Stream* gFonts[FONTRES_COUNT]; - -static void assure_init_fonts() { - static bool gOnce; - if (!gOnce) { - for (size_t i = 0; i < FONTRES_COUNT; i++) { - gFonts[i] = create_from_fontres(gFontRes[i]); - gOnce = true; - } - } -} - -static SkTypeface_Stream* get_default_font(SkTypeface::Style style) { - assure_init_fonts(); - - if (style & SkTypeface::kBold) { - return gFonts[DEFAULT_INDEX_BOLD]; - } else { - return gFonts[DEFAULT_INDEX_REGULAR]; - } -} - -static SkTypeface_Stream* find_by_id(SkFontID fontID) { - assure_init_fonts(); - - for (size_t i = 0; i < FONTRES_COUNT; i++) { - if (gFonts[i]->uniqueID() == fontID) { - return gFonts[i]; - } - } - return NULL; -} - -/////////////////////////////////////////////////////////////////////////////// - -template <typename T> T* ref_and_return(T* obj) { - obj->ref(); - return obj; -} - -SkTypeface* SkFontHost::CreateTypeface(const SkTypeface* familyFace, - const char familyName[], - const void* data, size_t bytelength, - SkTypeface::Style style) { - assure_init_fonts(); - - if (familyName) { - FontDesign design = find_design_from_name(familyName); - if (kIllegal_FontDesign != design) { - familyName = "$#@*&%*#$@ never match any name"; - } - - int bestDistance = 999; - int bestIndex = -1; - for (size_t i = 0; i < FONTRES_COUNT; i++) { - if (design == gFontRes[i].fDesign || !strcmp(gFontRes[i].fName, familyName)) { - int dist = compute_style_distance(style, gFontRes[i].fStyle); - if (dist < bestDistance) { - bestDistance = dist; - bestIndex = i; - } - } - } - if (bestIndex >= 0) { - return ref_and_return(gFonts[bestIndex]); - } - } - - return ref_and_return(get_default_font(style)); -} - -SkTypeface* SkFontHost::CreateTypefaceFromStream(SkStream* stream) { - SkDEBUGFAIL("SkFontHost::CreateTypeface unimplemented"); - return NULL; -} - -SkTypeface* SkFontHost::CreateTypefaceFromFile(char const*) { -// SkDEBUGFAIL("SkFontHost::CreateTypefaceFromFile unimplemented"); - return NULL; -} - -/////////////////////////////////////////////////////////////////////////////// - -SkStream* SkFontHost::OpenStream(uint32_t uniqueID) { - SkTypeface_Stream* tf = find_by_id(uniqueID); - SkASSERT(tf); - return tf->refStream(); -} - -size_t SkFontHost::GetFileName(SkFontID fontID, char path[], size_t length, - int32_t* index) { - SkDebugf("SkFontHost::GetFileName unimplemented\n"); - return 0; -} - -/////////////////////////////////////////////////////////////////////////////// - -void SkFontHost::Serialize(const SkTypeface* face, SkWStream* stream) { - SkDEBUGFAIL("SkFontHost::Serialize unimplemented"); -} - -SkTypeface* SkFontHost::Deserialize(SkStream* stream) { - int style = stream->readU8(); - int len = stream->readPackedUInt(); - const char* name = NULL; - if (len > 0) { - SkString str; - str.resize(len); - stream->read(str.writable_str(), len); - - if (str.startsWith("DroidSans")) { - name = "sans-serif"; - } else if (str.startsWith("DroidSerif")) { - name = "serif"; - } - SkDebugf("---- deserialize typeface <%s> %d %s\n", str.c_str(), style, name); - } -// name = NULL; style = 0; - return SkFontHost::CreateTypeface(NULL, name, NULL, NULL, - (SkTypeface::Style)style); -} - -SkFontID SkFontHost::NextLogicalFont(SkFontID currFontID, SkFontID origFontID) { - return 0; -} - -#define FONT_CACHE_MEMORY_BUDGET 1 * 1024 * 1024 - -size_t SkFontHost::ShouldPurgeFontCache(size_t sizeAllocatedSoFar) { - if (sizeAllocatedSoFar > FONT_CACHE_MEMORY_BUDGET) - return sizeAllocatedSoFar - FONT_CACHE_MEMORY_BUDGET; - else - return 0; // nothing to do -} - -/////////////////////////////////////////////////////////////////////////////// -int SkFontHost::ComputeGammaFlag(const SkPaint& paint) { - return 0; -} - -void SkFontHost::GetGammaTables(const uint8_t* tables[2]) { - tables[0] = NULL; // black gamma (e.g. exp=1.4) - tables[1] = NULL; // white gamma (e.g. exp= 1/1.4) -} - -// static -SkAdvancedTypefaceMetrics* SkFontHost::GetAdvancedTypefaceMetrics( - uint32_t fontID, - SkAdvancedTypefaceMetrics::PerGlyphInfo perGlyphInfo) { - SkDEBUGFAIL("SkFontHost::GetAdvancedTypefaceMetrics unimplemented"); - return NULL; -} - -void SkFontHost::FilterRec(SkScalerContext::Rec* rec, SkTypeface*) { -} - -SkScalerContext* SkFontHost::CreateScalerContext(const SkDescriptor* desc) { - SkDEBUGFAIL("SkFontHost::CreateScalarContext unimplemented"); - return NULL; -}
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