// Load a SpriteFont image into GPU memory
SpriteFont LoadSpriteFont(const char *fileName)
{
// Default hardcoded values for ttf file loading
#define DEFAULT_TTF_FONTSIZE 32 // Font first character (32 - space)
#define DEFAULT_TTF_NUMCHARS 95 // ASCII 32..126 is 95 glyphs
#define DEFAULT_FIRST_CHAR 32 // Expected first char for image spritefont
SpriteFont spriteFont = { 0 };
// Check file extension
if (strcmp(GetExtension(fileName),"rbmf") == 0) spriteFont = LoadRBMF(fileName);
else if (strcmp(GetExtension(fileName),"ttf") == 0) spriteFont = LoadSpriteFontTTF(fileName, DEFAULT_TTF_FONTSIZE, 0, NULL);
else if (strcmp(GetExtension(fileName),"fnt") == 0) spriteFont = LoadBMFont(fileName);
else
{
Image image = LoadImage(fileName);
if (image.data != NULL) spriteFont = LoadImageFont(image, MAGENTA, DEFAULT_FIRST_CHAR);
UnloadImage(image);
}
if (spriteFont.texture.id == 0)
{
TraceLog(WARNING, "[%s] SpriteFont could not be loaded, using default font", fileName);
spriteFont = GetDefaultFont();
}
else SetTextureFilter(spriteFont.texture, FILTER_POINT); // By default we set point filter (best performance)
return spriteFont;
}
void TextShape::DrawSubStringPlain(ref_ptr<dp::GraphicsContext> context,
StraightTextLayout const & layout, dp::FontDecl const & font,
glm::vec2 const & baseOffset, ref_ptr<dp::Batcher> batcher,
ref_ptr<dp::TextureManager> textures, bool isPrimary,
bool isOptional) const
{
gpu::TTextStaticVertexBuffer staticBuffer;
gpu::TTextDynamicVertexBuffer dynamicBuffer;
dp::TextureManager::ColorRegion color, outline;
textures->GetColorRegion(font.m_color, color);
textures->GetColorRegion(font.m_outlineColor, outline);
auto const finalOffset = layout.GetTextOffset(m_symbolSizes.front(), m_params.m_titleDecl.m_anchor, m_symbolAnchor);
layout.CacheDynamicGeometry(finalOffset, dynamicBuffer);
layout.CacheStaticGeometry(color, staticBuffer);
bool const isNonSdfText = layout.GetFixedHeight() > 0;
auto state = CreateRenderState(isNonSdfText ? gpu::Program::TextFixed : gpu::Program::Text, m_params.m_depthLayer);
state.SetProgram3d(isNonSdfText ? gpu::Program::TextFixedBillboard : gpu::Program::TextBillboard);
state.SetDepthTestEnabled(m_params.m_depthTestEnabled);
ASSERT(color.GetTexture() == outline.GetTexture(), ());
state.SetColorTexture(color.GetTexture());
state.SetMaskTexture(layout.GetMaskTexture());
if (isNonSdfText)
state.SetTextureFilter(dp::TextureFilter::Nearest);
gpu::TTextDynamicVertexBuffer initialDynBuffer(dynamicBuffer.size());
m2::PointF const & pixelSize = layout.GetPixelSize();
auto overlayId = dp::OverlayID(m_params.m_featureID, m_tileCoords, m_textIndex);
drape_ptr<StraightTextHandle> handle = make_unique_dp<StraightTextHandle>(overlayId,
layout.GetText(),
m_params.m_titleDecl.m_anchor,
glsl::ToVec2(m_basePoint),
glsl::vec2(pixelSize.x, pixelSize.y),
finalOffset,
GetOverlayPriority(),
layout.GetFixedHeight(),
textures,
isOptional,
std::move(dynamicBuffer),
m_params.m_minVisibleScale,
true);
if (m_symbolSizes.size() > 1)
handle->SetDynamicSymbolSizes(layout, m_symbolSizes, m_symbolAnchor);
handle->SetPivotZ(m_params.m_posZ);
ASSERT_LESS(m_params.m_startOverlayRank + 1, dp::OverlayRanksCount, ());
handle->SetOverlayRank(isPrimary ? m_params.m_startOverlayRank : m_params.m_startOverlayRank + 1);
handle->SetExtendingSize(m_params.m_extendingSize);
if (m_params.m_specialDisplacement == SpecialDisplacement::UserMark ||
m_params.m_specialDisplacement == SpecialDisplacement::SpecialModeUserMark)
{
handle->SetSpecialLayerOverlay(true);
}
dp::AttributeProvider provider(2, static_cast<uint32_t>(staticBuffer.size()));
provider.InitStream(0, gpu::TextStaticVertex::GetBindingInfo(), make_ref(staticBuffer.data()));
provider.InitStream(1, gpu::TextDynamicVertex::GetBindingInfo(), make_ref(initialDynBuffer.data()));
batcher->InsertListOfStrip(context, state, make_ref(&provider), std::move(handle), 4);
}
