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#include "drape/texture_manager.hpp"
#include "drape/symbols_texture.hpp"
#include "drape/font_texture.hpp"
#include "drape/stipple_pen_resource.hpp"
#include "drape/texture_of_colors.hpp"
#include "drape/glfunctions.hpp"
#include "platform/platform.hpp"
#include "coding/file_name_utils.hpp"
#include "base/stl_add.hpp"
#include "std/vector.hpp"
#include "std/bind.hpp"
namespace dp
{
uint32_t const STIPPLE_TEXTURE_SIZE = 1024;
uint32_t const COLOR_TEXTURE_SIZE = 1024;
bool TextureManager::BaseRegion::IsValid() const
{
return !m_info.IsNull() && !m_texture.IsNull();
}
void TextureManager::BaseRegion::SetResourceInfo(RefPointer<Texture::ResourceInfo> info)
{
m_info = info;
}
void TextureManager::BaseRegion::SetTexture(RefPointer<Texture> texture)
{
m_texture = texture;
}
m2::PointU TextureManager::BaseRegion::GetPixelSize() const
{
ASSERT(IsValid(), ());
m2::RectF const & texRect = m_info->GetTexRect();
return m2::PointU(ceil(texRect.SizeX() * m_texture->GetWidth()),
ceil(texRect.SizeY() * m_texture->GetHeight()));
}
uint32_t TextureManager::BaseRegion::GetPixelHeight() const
{
return ceil(m_info->GetTexRect().SizeY() * m_texture->GetHeight());
}
m2::RectF const & TextureManager::BaseRegion::GetTexRect() const
{
return m_info->GetTexRect();
}
TextureManager::GlyphRegion::GlyphRegion()
: BaseRegion()
{
}
float TextureManager::GlyphRegion::GetOffsetX() const
{
ASSERT(m_info->GetType() == Texture::Glyph, ());
GlyphInfo const * info = static_cast<GlyphInfo const *>(m_info.GetRaw());
return info->GetMetrics().m_xOffset;
}
float TextureManager::GlyphRegion::GetOffsetY() const
{
ASSERT(m_info->GetType() == Texture::Glyph, ());
GlyphInfo const * info = static_cast<GlyphInfo const *>(m_info.GetRaw());
return info->GetMetrics().m_yOffset;
}
float TextureManager::GlyphRegion::GetAdvanceX() const
{
ASSERT(m_info->GetType() == Texture::Glyph, ());
GlyphInfo const * info = static_cast<GlyphInfo const *>(m_info.GetRaw());
return info->GetMetrics().m_xAdvance;
}
float TextureManager::GlyphRegion::GetAdvanceY() const
{
ASSERT(m_info->GetType() == Texture::Glyph, ());
GlyphInfo const * info = static_cast<GlyphInfo const *>(m_info.GetRaw());
return info->GetMetrics().m_yAdvance;
}
uint32_t TextureManager::StippleRegion::GetMaskPixelLength() const
{
ASSERT(m_info->GetType() == Texture::StipplePen, ());
return static_cast<StipplePenResourceInfo const *>(m_info.GetRaw())->GetMaskPixelLength();
}
uint32_t TextureManager::StippleRegion::GetPatternPixelLength() const
{
ASSERT(m_info->GetType() == Texture::StipplePen, ());
return static_cast<StipplePenResourceInfo const *>(m_info.GetRaw())->GetPatternPixelLength();
}
void TextureManager::UpdateDynamicTextures()
{
m_colorTexture->UpdateState();
m_stipplePenTexture->UpdateState();
for_each(m_glyphGroups.begin(), m_glyphGroups.end(), [](GlyphGroup & g)
{
if (!g.m_texture.IsNull())
g.m_texture->UpdateState();
});
for_each(m_hybridGlyphGroups.begin(), m_hybridGlyphGroups.end(), [](MasterPointer<Texture> texture)
{
texture->UpdateState();
});
}
void TextureManager::AllocateGlyphTexture(TextureManager::GlyphGroup & group) const
{
group.m_texture.Reset(new FontTexture(m2::PointU(m_maxTextureSize, m_maxTextureSize), m_glyphManager.GetRefPointer()));
}
void TextureManager::Init(Params const & params)
{
GLFunctions::glPixelStore(gl_const::GLUnpackAlignment, 1);
SymbolsTexture * symbols = new SymbolsTexture();
symbols->Load(my::JoinFoldersToPath(string("resources-") + params.m_resPrefix, "symbols"));
m_symbolTexture.Reset(symbols);
m_stipplePenTexture.Reset(new StipplePenTexture(m2::PointU(STIPPLE_TEXTURE_SIZE, STIPPLE_TEXTURE_SIZE)));
m_colorTexture.Reset(new ColorTexture(m2::PointU(COLOR_TEXTURE_SIZE, COLOR_TEXTURE_SIZE)));
m_glyphManager.Reset(new GlyphManager(params.m_glyphMngParams));
m_maxTextureSize = GLFunctions::glGetInteger(gl_const::GLMaxTextureSize);
uint32_t const textureSquare = m_maxTextureSize * m_maxTextureSize;
uint32_t const baseGlyphHeight = params.m_glyphMngParams.m_baseGlyphHeight;
uint32_t const avarageGlyphSquare = baseGlyphHeight * baseGlyphHeight;
m_glyphGroups.push_back(GlyphGroup());
uint32_t glyphCount = ceil(0.9 * textureSquare / avarageGlyphSquare);
m_glyphManager->ForEachUnicodeBlock([this, glyphCount](strings::UniChar const & start, strings::UniChar const & end)
{
if (m_glyphGroups.empty())
{
m_glyphGroups.push_back(GlyphGroup(start, end));
return;
}
GlyphGroup & group = m_glyphGroups.back();
ASSERT_LESS_OR_EQUAL(group.m_endChar, start, ());
if (end - group.m_startChar < glyphCount)
group.m_endChar = end;
else
m_glyphGroups.push_back(GlyphGroup(start, end));
});
}
void TextureManager::Release()
{
m_symbolTexture.Destroy();
m_stipplePenTexture.Destroy();
m_colorTexture.Destroy();
DeleteRange(m_glyphGroups, [](GlyphGroup & g)
{
g.m_texture.Destroy();
});
DeleteRange(m_hybridGlyphGroups, MasterPointerDeleter());
}
void TextureManager::GetSymbolRegion(string const & symbolName, SymbolRegion & region) const
{
region.SetResourceInfo(m_symbolTexture->FindResource(SymbolsTexture::SymbolKey(symbolName)));
region.SetTexture(m_symbolTexture.GetRefPointer());
ASSERT(region.IsValid(), ());
}
void TextureManager::GetStippleRegion(TStipplePattern const & pen, StippleRegion & region) const
{
region.SetResourceInfo(m_stipplePenTexture->FindResource(StipplePenKey(pen)));
region.SetTexture(m_stipplePenTexture.GetRefPointer());
ASSERT(region.IsValid(), ());
}
void TextureManager::GetColorRegion(Color const & color, ColorRegion & region) const
{
region.SetResourceInfo(m_colorTexture->FindResource(ColorKey(color)));
region.SetTexture(m_colorTexture.GetRefPointer());
ASSERT(region.IsValid(), ());
}
void TextureManager::GetGlyphRegions(strings::UniString const & text, TGlyphsBuffer & regions) const
{
size_t const INVALID_GROUP = static_cast<size_t>(-1);
size_t groupIndex = INVALID_GROUP;
for (strings::UniChar const & c : text)
{
auto const iter = lower_bound(m_glyphGroups.begin(), m_glyphGroups.end(), c, [](GlyphGroup const & g, strings::UniChar const & c)
{
return g.m_endChar < c;
});
ASSERT(iter != m_glyphGroups.end(), ());
size_t currentIndex = distance(m_glyphGroups.begin(), iter);
if (groupIndex == INVALID_GROUP)
groupIndex = currentIndex;
else if (groupIndex != currentIndex)
{
groupIndex = INVALID_GROUP;
break;
}
}
regions.reserve(text.size());
if (groupIndex == INVALID_GROUP)
{
/// TODO some magic with hybrid textures
}
else
{
GlyphGroup & group = m_glyphGroups[groupIndex];
if (group.m_texture.IsNull())
AllocateGlyphTexture(group);
RefPointer<Texture> texture = group.m_texture.GetRefPointer();
for (strings::UniChar const & c : text)
{
GlyphRegion reg;
reg.SetResourceInfo(texture->FindResource(GlyphKey(c)));
reg.SetTexture(texture);
regions.push_back(reg);
}
}
}
} // namespace dp
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