GLMemory

GstGLMemory is a #GstGLBaseMemory subclass providing support for the mapping of OpenGL textures.

#GstGLMemory is created or wrapped through gstgl.glbase_memory.GLBaseMemory.alloc with #GstGLVideoAllocationParams.

Data is uploaded or downloaded from the GPU as is necessary.

The #GstCaps that is used for #GstGLMemory based buffers should contain the GST_CAPS_FEATURE_MEMORY_GL_MEMORY as a #GstCapsFeatures and should contain a 'texture-target' field with one of the #GstGLTextureTarget values as a string, i.e. some combination of 'texture-target=(string){2D, rectangle, external-oes}'.

class GLMemory : Boxed {

bool copyInto(uint texId, gstgl.types.GLTextureTarget target, gstgl.types.GLFormat texFormat, int width, int height);

bool copyTeximage(uint texId, gstgl.types.GLTextureTarget outTarget, gstgl.types.GLFormat outTexFormat, int outWidth, int outHeight);

gstgl.types.GLFormat getTextureFormat();

int getTextureHeight();

uint getTextureId();

gstgl.types.GLTextureTarget getTextureTarget();

int getTextureWidth();

void init_(gst.allocator.Allocator allocator, gst.memory.Memory parent, gstgl.glcontext.GLContext context, gstgl.types.GLTextureTarget target, gstgl.types.GLFormat texFormat, gst.allocation_params.AllocationParams params, gstvideo.video_info.VideoInfo info, uint plane, gstvideo.video_alignment.VideoAlignment valign, void* userData, glib.types.DestroyNotify notify);

bool readPixels(void* writePointer);

void texsubimage(void* readPointer);

static void initOnce();

}

Members

Functions

copyInto bool copyInto(uint texId, gstgl.types.GLTextureTarget target, gstgl.types.GLFormat texFormat, int width, int height): Copies gl_mem into the texture specified by tex_id. The format of tex_id is specified by tex_format, width and height.
copyTeximage bool copyTeximage(uint texId, gstgl.types.GLTextureTarget outTarget, gstgl.types.GLFormat outTexFormat, int outWidth, int outHeight): Copies the texture in #GstGLMemory into the texture specified by tex_id, out_target, out_tex_format, out_width and out_height.
getTextureFormat gstgl.types.GLFormat getTextureFormat()
getTextureHeight int getTextureHeight()
getTextureId uint getTextureId()
getTextureTarget gstgl.types.GLTextureTarget getTextureTarget()
getTextureWidth int getTextureWidth()
init_ void init_(gst.allocator.Allocator allocator, gst.memory.Memory parent, gstgl.glcontext.GLContext context, gstgl.types.GLTextureTarget target, gstgl.types.GLFormat texFormat, gst.allocation_params.AllocationParams params, gstvideo.video_info.VideoInfo info, uint plane, gstvideo.video_alignment.VideoAlignment valign, void* userData, glib.types.DestroyNotify notify): Initializes mem with the required parameters. info is assumed to have already have been modified with gstvideo.video_info.VideoInfo.align_.
readPixels bool readPixels(void* writePointer): Reads the texture in #GstGLMemory into write_pointer if no buffer is bound to GL_PIXEL_PACK_BUFFER. Otherwise write_pointer is the byte offset into the currently bound GL_PIXEL_PACK_BUFFER buffer to store the result of glReadPixels. See the OpenGL specification for glReadPixels for more details.
texsubimage void texsubimage(void* readPointer): Reads the texture in read_pointer into gl_mem.

Static functions

initOnce void initOnce(): Initializes the GL Base Texture allocator. It is safe to call this function multiple times. This must be called before any other GstGLMemory operation.

Inherited Members

From Boxed

cInstancePtr void* cInstancePtr;: Pointer to the C boxed value
getType GType getType(): Get the GType of this boxed type.
gType GType gType [@property getter]: Boxed GType property.
self Boxed self(): Convenience method to return this cast to a type. For use in D with statements.
copy_ void* copy_(): Make a copy of the wrapped C boxed data.
boxedCopy void* boxedCopy(void* cBoxed): Copy a C boxed value using g_boxed_copy.
boxedFree void boxedFree(void* cBoxed): Free a C boxed value using g_boxed_free.

gstgl glmemory classes

GLMemory