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Renamed Image::GetValidTextureSize to Image::GetValidSize

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Added Image::GetMaximumSize

git-svn-id: https://sfml.svn.sourceforge.net/svnroot/sfml/branches/sfml2@1306 4e206d99-4929-0410-ac5d-dfc041789085
This commit is contained in:
LaurentGom 2009-12-04 13:55:16 +00:00
parent cacd150569
commit aff5c1a47c
4 changed files with 39 additions and 19 deletions
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12
include/SFML/Graphics/Image.hpp
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@ -260,14 +260,22 @@ public :
FloatRect GetTexCoords(const IntRect& rectangle) const;
////////////////////////////////////////////////////////////
/// Get a valid texture size according to hardware support
/// Get the maximum image size according to hardware support
///
/// \return Maximum size allowed for images, in pixels
///
////////////////////////////////////////////////////////////
static unsigned int GetMaximumSize();
////////////////////////////////////////////////////////////
/// Get a valid image size according to hardware support
///
/// \param Size : size to convert
///
/// \return Valid nearest size (greater than or equal to specified size)
///
////////////////////////////////////////////////////////////
static unsigned int GetValidTextureSize(unsigned int size);
static unsigned int GetValidSize(unsigned int size);
////////////////////////////////////////////////////////////
/// Assignment operator

14
src/SFML/Graphics/FontLoader.cpp
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@ -167,18 +167,17 @@ bool FontLoader::LoadFontFromMemory(const char* data, std::size_t sizeInBytes, u
FT_Error FontLoader::CreateBitmapFont(FT_Face face, unsigned int charSize, const String& charset, Font& font)
{
// Let's find how many characters to put in each row to make them fit into a squared texture
GLint maxSize;
GLCheck(glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxSize));
unsigned int maxSize = Image::GetMaximumSize();
int nbChars = static_cast<int>(sqrt(static_cast<double>(charset.GetSize())) * 0.75);
// Clamp the character size to make sure we won't create a texture too big
if (nbChars * charSize >= static_cast<unsigned int>(maxSize))
if (nbChars * charSize >= maxSize)
charSize = maxSize / nbChars;
// Initialize the dimensions
unsigned int left = 0;
unsigned int top = 0;
unsigned int texWidth = Image::GetValidTextureSize(charSize * nbChars);
unsigned int texWidth = Image::GetValidSize(charSize * nbChars);
unsigned int texHeight = charSize * nbChars;
std::vector<unsigned int> tops(texWidth, 0);
@ -514,18 +513,17 @@ bool FontLoader::LoadFontFromFile(const std::string& filename, unsigned int char
bool FontLoader::LoadFontFromMemory(const char* data, std::size_t sizeInBytes, unsigned int charSize, const String& charset, Font& font)
{
// Let's find how many characters to put in each row to make them fit into a squared texture
GLint maxSize;
GLCheck(glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxSize));
unsigned int maxSize = Image::GetMaximumSize();
int nbChars = static_cast<int>(sqrt(static_cast<double>(charset.GetSize())) * 0.75);
// Clamp the character size to make sure we won't create a texture too big
if (nbChars * charSize >= static_cast<unsigned int>(maxSize))
if (nbChars * charSize >= maxSize)
charSize = maxSize / nbChars;
// Initialize the dimensions
unsigned int left = 0;
unsigned int top = 0;
unsigned int texWidth = Image::GetValidTextureSize(charSize * nbChars);
unsigned int texWidth = Image::GetValidSize(charSize * nbChars);
unsigned int texHeight = charSize * nbChars;
std::vector<unsigned int> tops(texWidth, 0);

30
src/SFML/Graphics/Image.cpp
View File

@ -577,9 +577,21 @@ FloatRect Image::GetTexCoords(const IntRect& rect) const
////////////////////////////////////////////////////////////
/// Get a valid texture size according to hardware support
/// Get the maximum image size according to hardware support
////////////////////////////////////////////////////////////
unsigned int Image::GetValidTextureSize(unsigned int size)
unsigned int Image::GetMaximumSize()
{
GLint size;
GLCheck(glGetIntegerv(GL_MAX_TEXTURE_SIZE, &size));
return static_cast<unsigned int>(size);
}
////////////////////////////////////////////////////////////
/// Get a valid image size according to hardware support
////////////////////////////////////////////////////////////
unsigned int Image::GetValidSize(unsigned int size)
{
// Make sure that GLEW is initialized
priv::EnsureGlewInit();
@ -633,15 +645,17 @@ bool Image::CreateTexture()
return false;
// Adjust internal texture dimensions depending on NPOT textures support
unsigned int textureWidth = GetValidTextureSize(myWidth);
unsigned int textureHeight = GetValidTextureSize(myHeight);
unsigned int textureWidth = GetValidSize(myWidth);
unsigned int textureHeight = GetValidSize(myHeight);
// Check the maximum texture size
GLint maxSize;
GLCheck(glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxSize));
if ((textureWidth > static_cast<unsigned int>(maxSize)) || (textureHeight > static_cast<unsigned int>(maxSize)))
unsigned int maxSize = GetMaximumSize();
if ((textureWidth > maxSize) || (textureHeight > maxSize))
{
std::cerr << "Failed to create image, its internal size is too high (" << textureWidth << "x" << textureHeight << ")" << std::endl;
std::cerr << "Failed to create image, its internal size is too high "
<< "(" << textureWidth << "x" << textureHeight << ", "
<< "maximum is " << maxSize << "x" << maxSize << ")"
<< std::endl;
return false;
}

2
src/SFML/Graphics/Text.cpp
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@ -213,7 +213,7 @@ void Text::Render(RenderTarget&, RenderQueue& queue) const
return;
// Set the scaling factor to get the actual size
float charSize = static_cast<float>(myFont->GetCharacterSize());
float charSize = static_cast<float>(myFont->GetCharacterSize());
float factor = mySize / charSize;
// Bind the font texture