Messages

1

Graphics / SFML2 and external gui library

« on: February 06, 2012, 10:11:53 pm »

Hi all,

I'm trying to work with librocket and sfml but I can't render both things...

Code: [Select]



void CGUIRenderInterface::resize()
{
mWindow->SetActive();

static sf::View View;
View.SetViewport(sf::FloatRect(0, (float)mWindow->GetWidth(), (float)mWindow->GetHeight(), 0));
mWindow->SetView(View);

glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, mWindow->GetWidth(), mWindow->GetHeight(), 0, -1, 1);
glMatrixMode(GL_MODELVIEW);

glViewport(0, 0, mWindow->GetWidth(), mWindow->GetHeight());
}

void CGUIRenderInterface::RenderGeometry(Rocket::Core::Vertex* vertices, int num_vertices, int* indices, int num_indices, const Rocket::Core::TextureHandle texture, const Rocket::Core::Vector2f& translation)
{
mWindow->SetActive();

glPushMatrix();
glTranslatef(translation.x, translation.y, 0);

std::vector<Rocket::Core::Vector2f> Positions(num_vertices);
std::vector<Rocket::Core::Colourb> Colors(num_vertices);
std::vector<Rocket::Core::Vector2f> TexCoords(num_vertices);

for(int  i = 0; i < num_vertices; i++)
{
Positions[i] = vertices[i].position;
Colors[i] = vertices[i].colour;
TexCoords[i] = vertices[i].tex_coord;
};

glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);

glVertexPointer(2, GL_FLOAT, 0, &Positions[0]);
glColorPointer(4, GL_UNSIGNED_BYTE, 0, &Colors[0]);
glTexCoordPointer(2, GL_FLOAT, 0, &TexCoords[0]);

glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

sf::Texture* image = (sf::Texture *)texture;

if(image)
{
image->Bind();
}
else
{
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glBindTexture(GL_TEXTURE_2D, 0);
};

glDrawElements(GL_TRIANGLES, num_indices, GL_UNSIGNED_INT, indices);

glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);

glColor4f(1, 1, 1, 1);

glPopMatrix();
}


problem is here....

If I comment resize function sfml draw his things but librocket no.

2

System / SFML2 - GetInput (Solved)

« on: December 31, 2011, 03:17:00 pm »

Hi all,

I can't find any function similar to GetInput in SFML1  

3

Graphics / SFML2 - LoadFromPixels (Solved)

« on: December 31, 2011, 02:01:26 pm »

Hi all,

in sfml2 there is no LoadFromPixels
how can i convert it from sfml1 to sfml2?

4

Graphics / OpenGLImageLoader - myGUI (What's wrong?)

« on: December 28, 2011, 08:54:39 pm »

maybe a it's a myGUI bug?

5

Graphics / OpenGLImageLoader - myGUI (What's wrong?)

« on: December 28, 2011, 08:18:52 pm »

i'm looking an official example
and here is the code:

Code: [Select]

void* BaseManager::loadImage(int& _width, int& _height, MyGUI::PixelFormat& _format, const std::string& _filename)
{
std::string fullname = MyGUI::OpenGLDataManager::getInstance().getDataPath(_filename);

void* result = 0;

Gdiplus::Bitmap* image = Gdiplus::Bitmap::FromFile(MyGUI::UString(fullname).asWStr_c_str());
if (image)
{
_width = image->GetWidth();
_height = image->GetHeight();
Gdiplus::PixelFormat format = image->GetPixelFormat();

if (format == PixelFormat24bppRGB)
_format = MyGUI::PixelFormat::R8G8B8;
else if (format == PixelFormat32bppARGB)
_format = MyGUI::PixelFormat::R8G8B8A8;
else
_format = MyGUI::PixelFormat::Unknow;

if (_format != MyGUI::PixelFormat::Unknow)
{
Gdiplus::Rect rect(0, 0, _width, _height);
Gdiplus::BitmapData out_data;
image->LockBits(&rect, Gdiplus::ImageLockModeRead, format, &out_data);

size_t size = out_data.Height * out_data.Stride;
result = new unsigned char[size];

convertRawData(&out_data, result, size, _format);

image->UnlockBits(&out_data);
}

delete image;
}

return result;
}

btw let my try width*height*4
edit:

it give me

Code: [Select]

20:20:11  |  Platform  |  Critical  |  Error lock vertex buffer  |  MyGUI_OpenGLVertexBuffer.cpp  |  61

6

Graphics / OpenGLImageLoader - myGUI (What's wrong?)

« on: December 28, 2011, 05:54:06 pm »

Code: [Select]

void* ImgLoader::loadImage(int& _width, int& _height, MyGUI::PixelFormat& _format, const std::string& _filename)
{
if (!mImage.LoadFromFile(_filename))
return NULL;

_width = mImage.GetWidth();
_height = mImage.GetHeight();
_format = MyGUI::PixelFormat::R8G8B8A8;

size_t size = _width * _height ;
void* data = new unsigned char[size];
memcpy(data, mImage.GetPixelsPtr(), size);
return data;
}

it doesn't load the image

7

Graphics / OpenGLImageLoader - myGUI (What's wrong?)

« on: December 28, 2011, 04:27:15 pm »

Thanks

8

Graphics / OpenGLImageLoader - myGUI (What's wrong?)

« on: December 28, 2011, 04:01:37 pm »

Hi,

im going to use myGUI as gui library for a tiny project

but the problem is:
http://www7.escoflip.com/tikiwiki/OpenGL+Image+Loader+Using+DevIL+Image+Library&structure=Libraries

i have to change this with sfml functions

actually im doing this:

-loading image
-pass image.GetWidth(); to _width
-pass image.GetHeight(); to _height

but what about pixel format?
and getting raw image and return it?