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Type: Posts; User: muratmat

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  1. Replies
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    Have a look at...

    Have a look at http://www.amanithvg.com/downloads/font_extract.zip
  2. Re: eglCreatePBufferFromClientBuffer not creating

    AmanithVG GLE does not support "rendering on VGImage", so eglCreatePBufferFromClientBuffer, if used in conjunction with a vgImageHandle created through AmanithVG, will fail (as you have...
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    Re: OpenVG VG_NO_CONTEXT_ERROR

    Hi sammy,

    I'm Matteo Muratori, the main coder of AmanithVG.
    In order to use AmanithVG GLE, you must:

    1) instantiate (and make it current) a valid OpenGL / OpenGL ES context + surface; such...
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    Re: Rendering glyphs along a curved line

    Use paths (i.e. VGPath) as glyphs.
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    Create and initialize a pbuffer.

    I'm working on my Xperia X1 (WinCE 6.1, MSM7200a, OpenGL ES 1.1) and I'm trying to setup a pbuffer in order to perform offline rendering.
    Here's the code I'm using:



    // EGL variables...
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    Create and initialize a pbuffer.

    I'm working on my Xperia X1 (WinCE 6.1, MSM7200a, OpenGL ES 1.1) and I'm trying to setup a pbuffer in order to perform offline rendering.
    Here's the code I'm using:



    // EGL variables...
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    Re: About Text rendering

    You can simply extract font outlines (and kerning information) using the Freetype library, then you can convert them into OpenVG commands and data.
    I've written my TTF -> OpenVG 1.1 converter in a...
  8. Re: Use GL_TEXTURE_ENV_COLOR in the second texture stage.

    Many thanks Georg!
  9. Use GL_TEXTURE_ENV_COLOR in the second texture stage.

    Working with the fixed pipeline, assuming that in the first texture unit a texture is dot(3)ted with the primary color (set using glColor4f), is it possible (and how) in the second texture unit to...
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    Texture combiners

    Supposing to have two textures bound on, respectively, texture unit 0 and texture unit 1.
    Modulating them (t0 * t1), is there a way to obtain:

    t0.r * t1.r
    t0.g * t1.r
    t0.b * t1.r
    t0.a * t1.r
    ...
  11. MiniEGL (reference implementation) eglSwapBuffers

    At the end of eglSwapBuffers function, provided by the OpenVG 1.1 reference implementation (rieglos.cpp), I see the following code:



    if (ctx->tmp)
    {
    // NOTE: we assume here...
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    Re: OpenVG 1.1 Errata

    Another: sample openvg.h and vgu.h headers included in the specifications PDF are different than the official headers files (.h) downloadable from Khronos website; for example, but not limited to:
    ...
  13. Stroking cubic bezier, strange behavior Ref. Implementation

    I tried to create two degenerated paths (really close points), as follow:



    path4 = vgCreatePath(VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F, 1.0f, 0.0f, 0, 0, VG_PATH_CAPABILITY_ALL);...
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    Re: Write to Framebuffer directly

    You can access to framebuffer doing as follow (standard Linux method):



    #include <linux/kd.h>
    #include <linux/vt.h>
    #include <linux/fb.h>
    #include <linux/input.h>
    #include <sys/user.h>
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    If you are using AmanithVG, there was an already...

    If you are using AmanithVG, there was an already known bug related to paths made of a single command without an initial move_to.
    The next public release will contain the patch.
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    Re: openVg-EGL in linux

    If you have an OpenGL board, you could download and try AmanithVG (you have to apply a simple download form). Linux version includes all examples, but EGL is missing (under Linux we use GLUT toolkit...
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    Re: OpenVG - Implmentaion details..

    Hi Ivo, just to let you know, we have fixed radial gradients problems for Intel accelerators under Windows. If you want to test new builds you can contact me privately.
    Unfortunately we don't have...
  18. OpenVG 1.0.1 specification: VG_VERSION string

    Looking at the 1.0.1 specifications, paragraph 14.3.2, i see the following

    const VGubyte * vgGetString(VGStringID name)

    "If name is VG_VERSION, the version number of the specification...
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    Re: Anti Aliased triangles

    You have to open a proper EGL context, specifying multisamples.
    You can refer to the code from a recent post of mines: http://www.khronos.org/message_boards/v ... .php?t=991

    Hope it will help you.
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    Try this (it's my EGL initialization code, tested...

    Try this (it's my EGL initialization code, tested also on iMX31):



    int initEGL() {

    EGLint majorVersion, minorVersion;
    EGLConfig *configList = NULL;
    EGLint numOfConfigs = 0;
    EGLint...
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    Because AmanithVG is based on OpenGL / OpenGL ES,...

    Because AmanithVG is based on OpenGL / OpenGL ES, a surface context can be created and bound externally (eg: window / pbuffer) through EGL (for embedded platforms) or WGL / AGL / XGL (for desktop...
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    Actually performances can be even more than 10x...

    Actually performances can be even more than 10x faster for some complex paint type (eg: radial gradients, transparent gradients in general), maybe coupled with one or more of other layers (eg:...
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    Thank you very much, it seems to work perfectly....

    Thank you very much, it seems to work perfectly.
    Anyway, i was wondering why using GL_RGBA format, the driver must upload (the given 32bit pixels) in its texture ram in 4444 format.

    The common...
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    32 bit textures on 16 bit framebuffer

    I have an MBX lite chip mounted on a iMX31. Display is 16bpp, so window surfaces and context can be opened only in 565 (without alpha channel). If i create a 32bit texture with...
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    Re: Different IP implementation of OpenVG

    Hi hbsk,
    I'm Matteo of Mazatech Srl.

    My company has developed a commercial OpenVG implementation based on OpenGL and OpenGL|ES.
    I have compared my OpenVG implementation against sw based...
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