/* * GStreamer * Copyright (C) 2015 Matthew Waters * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. */ #ifndef _GST_GL_MEMORY_H_ #define _GST_GL_MEMORY_H_ #include #include G_BEGIN_DECLS #define GST_TYPE_GL_MEMORY_ALLOCATOR (gst_gl_memory_allocator_get_type()) GST_GL_API GType gst_gl_memory_allocator_get_type(void); #define GST_IS_GL_MEMORY_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_GL_MEMORY_ALLOCATOR)) #define GST_IS_GL_MEMORY_ALLOCATOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_GL_MEMORY_ALLOCATOR)) #define GST_GL_MEMORY_ALLOCATOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_GL_MEMORY_ALLOCATOR, GstGLMemoryAllocatorClass)) #define GST_GL_MEMORY_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_GL_MEMORY_ALLOCATOR, GstGLMemoryAllocator)) #define GST_GL_MEMORY_ALLOCATOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_GL_MEMORY_ALLOCATOR, GstGLMemoryAllocatorClass)) #define GST_GL_MEMORY_ALLOCATOR_CAST(obj) ((GstGLMemoryAllocator *)(obj)) #define GST_GL_MEMORY_CAST(obj) ((GstGLMemory *) obj) /** * GST_CAPS_FEATURE_MEMORY_GL_MEMORY: * * Name of the caps feature for indicating the use of #GstGLMemory */ #define GST_CAPS_FEATURE_MEMORY_GL_MEMORY "memory:GLMemory" /** * GST_GL_MEMORY_VIDEO_FORMATS_STR: * * List of video formats that are supported by #GstGLMemory */ #define GST_GL_MEMORY_VIDEO_FORMATS_STR \ "{ RGBA, BGRA, RGBx, BGRx, ARGB, ABGR, xRGB, xBGR, RGB, BGR, RGB16, BGR16, " \ "AYUV, I420, YV12, NV12, NV21, YUY2, UYVY, Y41B, Y42B, Y444, " \ "GRAY8, GRAY16_LE, GRAY16_BE }" /** * GstGLMemory: * @mem: the parent #GstGLBaseMemory object * @tex_id: the GL texture id for this memory * @tex_target: the GL texture target for this memory * @tex_format: the texture type * @info: the texture's #GstVideoInfo * @valign: data alignment for system memory mapping * @plane: data plane in @info * @tex_scaling: GL shader scaling parameters for @valign and/or width/height * * Represents information about a GL texture */ struct _GstGLMemory { GstGLBaseMemory mem; guint tex_id; GstGLTextureTarget tex_target; GstGLFormat tex_format; GstVideoInfo info; GstVideoAlignment valign; guint plane; gfloat tex_scaling[2]; /* */ gboolean texture_wrapped; guint unpack_length; guint tex_width; /* */ gpointer _padding[GST_PADDING]; }; #define GST_TYPE_GL_VIDEO_ALLOCATION_PARAMS (gst_gl_video_allocation_params_get_type()) GST_GL_API GType gst_gl_video_allocation_params_get_type (void); typedef struct _GstGLVideoAllocationParams GstGLVideoAllocationParams; /** * GST_GL_ALLOCATION_PARAMS_ALLOC_FLAG_VIDEO: * * GL allocation flag indicating the allocation of 2D video frames */ #define GST_GL_ALLOCATION_PARAMS_ALLOC_FLAG_VIDEO (1 << 3) /** * GstGLVideoAllocationParams: * @parent: the parent #GstGLAllocationParams structure * @v_info: the #GstVideoInfo to allocate * @plane: the video plane index to allocate * @valign: the #GstVideoAlignment to align the system representation to (may be %NULL for the default) * @target: the #GstGLTextureTarget to allocate * @tex_format: the #GstGLFormat to allocate */ struct _GstGLVideoAllocationParams { GstGLAllocationParams parent; GstVideoInfo *v_info; guint plane; GstVideoAlignment *valign; GstGLTextureTarget target; GstGLFormat tex_format; /* */ gpointer _padding[GST_PADDING]; }; GST_GL_API gboolean gst_gl_video_allocation_params_init_full (GstGLVideoAllocationParams * params, gsize struct_size, guint alloc_flags, GstGLAllocationParamsCopyFunc copy, GstGLAllocationParamsFreeFunc free, GstGLContext * context, GstAllocationParams * alloc_params, GstVideoInfo * v_info, guint plane, GstVideoAlignment * valign, GstGLTextureTarget target, GstGLFormat tex_format, gpointer wrapped_data, gpointer gl_handle, gpointer user_data, GDestroyNotify notify); GST_GL_API GstGLVideoAllocationParams * gst_gl_video_allocation_params_new (GstGLContext * context, GstAllocationParams * alloc_params, GstVideoInfo * v_info, guint plane, GstVideoAlignment * valign, GstGLTextureTarget target, GstGLFormat tex_format); GST_GL_API GstGLVideoAllocationParams * gst_gl_video_allocation_params_new_wrapped_data (GstGLContext * context, GstAllocationParams * alloc_params, GstVideoInfo * v_info, guint plane, GstVideoAlignment * valign, GstGLTextureTarget target, GstGLFormat tex_format, gpointer wrapped_data, gpointer user_data, GDestroyNotify notify); GST_GL_API GstGLVideoAllocationParams * gst_gl_video_allocation_params_new_wrapped_texture (GstGLContext * context, GstAllocationParams * alloc_params, GstVideoInfo * v_info, guint plane, GstVideoAlignment * valign, GstGLTextureTarget target, GstGLFormat tex_format, guint tex_id, gpointer user_data, GDestroyNotify notify); GST_GL_API GstGLVideoAllocationParams * gst_gl_video_allocation_params_new_wrapped_gl_handle (GstGLContext * context, GstAllocationParams * alloc_params, GstVideoInfo * v_info, guint plane, GstVideoAlignment * valign, GstGLTextureTarget target, GstGLFormat tex_format, gpointer gl_handle, gpointer user_data, GDestroyNotify notify); /* subclass usage */ GST_GL_API void gst_gl_video_allocation_params_free_data (GstGLVideoAllocationParams * params); /* subclass usage */ GST_GL_API void gst_gl_video_allocation_params_copy_data (GstGLVideoAllocationParams * src_vid, GstGLVideoAllocationParams * dest_vid); /** * GstGLMemoryAllocator * * Opaque #GstGLMemoryAllocator struct */ struct _GstGLMemoryAllocator { /* */ GstGLBaseMemoryAllocator parent; gpointer _padding[GST_PADDING]; }; /** * GstGLMemoryAllocatorClass: * @map: provide a custom map implementation * @copy: provide a custom copy implementation * @unmap: provide a custom unmap implementation */ struct _GstGLMemoryAllocatorClass { /* */ GstGLBaseMemoryAllocatorClass parent_class; /* */ GstGLBaseMemoryAllocatorMapFunction map; GstGLBaseMemoryAllocatorCopyFunction copy; GstGLBaseMemoryAllocatorUnmapFunction unmap; /* */ gpointer _padding[GST_PADDING]; }; #include /** * GST_GL_MEMORY_ALLOCATOR_NAME: * * The name of the GL memory allocator */ #define GST_GL_MEMORY_ALLOCATOR_NAME "GLMemory" GST_GL_API void gst_gl_memory_init_once (void); GST_GL_API gboolean gst_is_gl_memory (GstMemory * mem); GST_GL_API void gst_gl_memory_init (GstGLMemory * mem, GstAllocator * allocator, GstMemory * parent, GstGLContext * context, GstGLTextureTarget target, GstGLFormat tex_format, GstAllocationParams *params, GstVideoInfo * info, guint plane, GstVideoAlignment *valign, gpointer user_data, GDestroyNotify notify); GST_GL_API gboolean gst_gl_memory_copy_into (GstGLMemory *gl_mem, guint tex_id, GstGLTextureTarget target, GstGLFormat tex_format, gint width, gint height); GST_GL_API gboolean gst_gl_memory_copy_teximage (GstGLMemory * src, guint tex_id, GstGLTextureTarget out_target, GstGLFormat out_tex_format, gint out_width, gint out_height); GST_GL_API gboolean gst_gl_memory_read_pixels (GstGLMemory * gl_mem, gpointer read_pointer); GST_GL_API void gst_gl_memory_texsubimage (GstGLMemory * gl_mem, gpointer read_pointer); /* accessors */ GST_GL_API gint gst_gl_memory_get_texture_width (GstGLMemory * gl_mem); GST_GL_API gint gst_gl_memory_get_texture_height (GstGLMemory * gl_mem); GST_GL_API GstGLFormat gst_gl_memory_get_texture_format (GstGLMemory * gl_mem); GST_GL_API GstGLTextureTarget gst_gl_memory_get_texture_target (GstGLMemory * gl_mem); GST_GL_API guint gst_gl_memory_get_texture_id (GstGLMemory * gl_mem); GST_GL_API gboolean gst_gl_memory_setup_buffer (GstGLMemoryAllocator * allocator, GstBuffer * buffer, GstGLVideoAllocationParams * params, GstGLFormat *tex_formats, gpointer *wrapped_data, gsize n_wrapped_pointers); GST_GL_API GstGLMemoryAllocator * gst_gl_memory_allocator_get_default (GstGLContext *context); G_END_DECLS #endif /* _GST_GL_MEMORY_H_ */