mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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76a38dd66a
The base class is useful for having multiple backing memory types other than the default. e.g. IOSurface, EGLImage, dmabuf? The PBO transfer logic is now inside GstGLMemoryPBO which uses GstGLBuffer to manage the PBO memory. This also moves the format utility functions into their own file.
359 lines
9.3 KiB
C
359 lines
9.3 KiB
C
/*
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* GStreamer
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* Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gl/gstglformat.h>
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#include <gst/gl/gstglcontext.h>
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#define USING_OPENGL(context) (gst_gl_context_check_gl_version (context, GST_GL_API_OPENGL, 1, 0))
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#define USING_OPENGL3(context) (gst_gl_context_check_gl_version (context, GST_GL_API_OPENGL3, 3, 1))
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#define USING_GLES(context) (gst_gl_context_check_gl_version (context, GST_GL_API_GLES, 1, 0))
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#define USING_GLES2(context) (gst_gl_context_check_gl_version (context, GST_GL_API_GLES2, 2, 0))
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#define USING_GLES3(context) (gst_gl_context_check_gl_version (context, GST_GL_API_GLES2, 3, 0))
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#ifndef GL_RGBA8
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#define GL_RGBA8 0x8058
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#endif
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#ifndef GL_RED
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#define GL_RED 0x1903
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#endif
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#ifndef GL_RG
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#define GL_RG 0x8227
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#endif
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#ifndef GL_R8
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#define GL_R8 0x8229
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#endif
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#ifndef GL_RG8
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#define GL_RG8 0x822B
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#endif
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static inline guint
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_gl_format_n_components (guint format)
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{
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switch (format) {
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case GST_VIDEO_GL_TEXTURE_TYPE_RGBA:
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case GL_RGBA:
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return 4;
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case GST_VIDEO_GL_TEXTURE_TYPE_RGB:
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case GST_VIDEO_GL_TEXTURE_TYPE_RGB16:
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case GL_RGB:
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return 3;
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case GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE_ALPHA:
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case GST_VIDEO_GL_TEXTURE_TYPE_RG:
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case GL_LUMINANCE_ALPHA:
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case GL_RG:
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return 2;
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case GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE:
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case GST_VIDEO_GL_TEXTURE_TYPE_R:
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case GL_LUMINANCE:
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case GL_RED:
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return 1;
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default:
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return 0;
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}
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}
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static inline guint
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_gl_type_n_components (guint type)
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{
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switch (type) {
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case GL_UNSIGNED_BYTE:
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return 1;
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case GL_UNSIGNED_SHORT_5_6_5:
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return 3;
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default:
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g_assert_not_reached ();
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return 0;
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}
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}
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static inline guint
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_gl_type_n_bytes (guint type)
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{
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switch (type) {
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case GL_UNSIGNED_BYTE:
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return 1;
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case GL_UNSIGNED_SHORT_5_6_5:
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return 2;
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default:
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g_assert_not_reached ();
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return 0;
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}
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}
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guint
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gst_gl_format_type_n_bytes (guint format, guint type)
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{
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return _gl_format_n_components (format) / _gl_type_n_components (type) *
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_gl_type_n_bytes (type);
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}
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guint
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gst_gl_texture_type_n_bytes (GstVideoGLTextureType tex_format)
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{
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guint format, type;
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format = gst_gl_format_from_gl_texture_type (tex_format);
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type = GL_UNSIGNED_BYTE;
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if (tex_format == GST_VIDEO_GL_TEXTURE_TYPE_RGB16)
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type = GL_UNSIGNED_SHORT_5_6_5;
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return gst_gl_format_type_n_bytes (format, type);
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}
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guint
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gst_gl_format_from_gl_texture_type (GstVideoGLTextureType tex_format)
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{
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switch (tex_format) {
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case GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE_ALPHA:
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return GL_LUMINANCE_ALPHA;
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case GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE:
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return GL_LUMINANCE;
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case GST_VIDEO_GL_TEXTURE_TYPE_RGBA:
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return GL_RGBA;
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case GST_VIDEO_GL_TEXTURE_TYPE_RGB:
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case GST_VIDEO_GL_TEXTURE_TYPE_RGB16:
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return GL_RGB;
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case GST_VIDEO_GL_TEXTURE_TYPE_RG:
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return GL_RG;
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case GST_VIDEO_GL_TEXTURE_TYPE_R:
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return GL_RED;
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default:
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return GST_VIDEO_GL_TEXTURE_TYPE_RGBA;
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}
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}
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GstVideoGLTextureType
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gst_gl_texture_type_from_format (GstGLContext * context,
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GstVideoFormat v_format, guint plane)
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{
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gboolean texture_rg =
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gst_gl_context_check_feature (context, "GL_EXT_texture_rg")
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|| gst_gl_context_check_gl_version (context, GST_GL_API_GLES2, 3, 0)
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|| gst_gl_context_check_feature (context, "GL_ARB_texture_rg")
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|| gst_gl_context_check_gl_version (context, GST_GL_API_OPENGL3, 3, 0);
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guint n_plane_components;
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switch (v_format) {
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case GST_VIDEO_FORMAT_RGBx:
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case GST_VIDEO_FORMAT_BGRx:
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case GST_VIDEO_FORMAT_xRGB:
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case GST_VIDEO_FORMAT_xBGR:
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case GST_VIDEO_FORMAT_RGBA:
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case GST_VIDEO_FORMAT_BGRA:
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case GST_VIDEO_FORMAT_ARGB:
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case GST_VIDEO_FORMAT_ABGR:
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case GST_VIDEO_FORMAT_AYUV:
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n_plane_components = 4;
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break;
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case GST_VIDEO_FORMAT_RGB:
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case GST_VIDEO_FORMAT_BGR:
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n_plane_components = 3;
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break;
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case GST_VIDEO_FORMAT_RGB16:
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case GST_VIDEO_FORMAT_BGR16:
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return GST_VIDEO_GL_TEXTURE_TYPE_RGB16;
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case GST_VIDEO_FORMAT_GRAY16_BE:
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case GST_VIDEO_FORMAT_GRAY16_LE:
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case GST_VIDEO_FORMAT_YUY2:
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case GST_VIDEO_FORMAT_UYVY:
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n_plane_components = 2;
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break;
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case GST_VIDEO_FORMAT_NV12:
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case GST_VIDEO_FORMAT_NV21:
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n_plane_components = plane == 0 ? 1 : 2;
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break;
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case GST_VIDEO_FORMAT_GRAY8:
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case GST_VIDEO_FORMAT_Y444:
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case GST_VIDEO_FORMAT_Y42B:
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case GST_VIDEO_FORMAT_Y41B:
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case GST_VIDEO_FORMAT_I420:
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case GST_VIDEO_FORMAT_YV12:
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n_plane_components = 1;
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break;
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default:
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n_plane_components = 4;
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g_assert_not_reached ();
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break;
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}
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switch (n_plane_components) {
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case 4:
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return GST_VIDEO_GL_TEXTURE_TYPE_RGBA;
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break;
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case 3:
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return GST_VIDEO_GL_TEXTURE_TYPE_RGB;
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break;
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case 2:
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return texture_rg ? GST_VIDEO_GL_TEXTURE_TYPE_RG :
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GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE_ALPHA;
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break;
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case 1:
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return texture_rg ? GST_VIDEO_GL_TEXTURE_TYPE_R :
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GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE;
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break;
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default:
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g_assert_not_reached ();
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break;
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}
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return GST_VIDEO_GL_TEXTURE_TYPE_RGBA;
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}
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guint
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gst_gl_sized_gl_format_from_gl_format_type (GstGLContext * context,
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guint format, guint type)
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{
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gboolean ext_texture_rg =
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gst_gl_context_check_feature (context, "GL_EXT_texture_rg");
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switch (format) {
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case GL_RGBA:
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switch (type) {
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case GL_UNSIGNED_BYTE:
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return USING_GLES2 (context)
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&& !USING_GLES3 (context) ? GL_RGBA : GL_RGBA8;
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break;
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}
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break;
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case GL_RGB:
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switch (type) {
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case GL_UNSIGNED_BYTE:
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return GL_RGB8;
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break;
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case GL_UNSIGNED_SHORT_5_6_5:
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return GL_RGB;
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break;
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}
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break;
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case GL_RG:
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switch (type) {
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case GL_UNSIGNED_BYTE:
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if (!USING_GLES3 (context) && USING_GLES2 (context) && ext_texture_rg)
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return GL_RG;
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return GL_RG8;
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break;
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}
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break;
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case GL_RED:
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switch (type) {
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case GL_UNSIGNED_BYTE:
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if (!USING_GLES3 (context) && USING_GLES2 (context) && ext_texture_rg)
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return GL_RED;
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return GL_R8;
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break;
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}
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break;
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case GL_LUMINANCE:
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return GL_LUMINANCE;
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break;
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case GL_LUMINANCE_ALPHA:
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return GL_LUMINANCE_ALPHA;
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break;
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case GL_ALPHA:
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return GL_ALPHA;
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break;
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default:
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break;
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}
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g_assert_not_reached ();
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return 0;
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}
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const gchar *
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gst_gl_texture_target_to_string (GstGLTextureTarget target)
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{
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switch (target) {
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case GST_GL_TEXTURE_TARGET_2D:
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return GST_GL_TEXTURE_TARGET_2D_STR;
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case GST_GL_TEXTURE_TARGET_RECTANGLE:
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return GST_GL_TEXTURE_TARGET_RECTANGLE_STR;
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case GST_GL_TEXTURE_TARGET_EXTERNAL_OES:
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return GST_GL_TEXTURE_TARGET_EXTERNAL_OES_STR;
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default:
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return NULL;
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}
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}
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GstGLTextureTarget
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gst_gl_texture_target_from_string (const gchar * str)
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{
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if (!str)
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return GST_GL_TEXTURE_TARGET_NONE;
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if (g_strcmp0 (str, GST_GL_TEXTURE_TARGET_2D_STR) == 0)
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return GST_GL_TEXTURE_TARGET_2D;
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if (g_strcmp0 (str, GST_GL_TEXTURE_TARGET_RECTANGLE_STR) == 0)
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return GST_GL_TEXTURE_TARGET_RECTANGLE;
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if (g_strcmp0 (str, GST_GL_TEXTURE_TARGET_EXTERNAL_OES_STR) == 0)
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return GST_GL_TEXTURE_TARGET_EXTERNAL_OES;
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return GST_GL_TEXTURE_TARGET_NONE;
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}
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guint
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gst_gl_texture_target_to_gl (GstGLTextureTarget target)
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{
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switch (target) {
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case GST_GL_TEXTURE_TARGET_2D:
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return GL_TEXTURE_2D;
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case GST_GL_TEXTURE_TARGET_RECTANGLE:
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return GL_TEXTURE_RECTANGLE;
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case GST_GL_TEXTURE_TARGET_EXTERNAL_OES:
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return GL_TEXTURE_EXTERNAL_OES;
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default:
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return 0;
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}
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}
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GstGLTextureTarget
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gst_gl_texture_target_from_gl (guint target)
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{
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switch (target) {
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case GL_TEXTURE_2D:
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return GST_GL_TEXTURE_TARGET_2D;
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case GL_TEXTURE_RECTANGLE:
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return GST_GL_TEXTURE_TARGET_RECTANGLE;
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case GL_TEXTURE_EXTERNAL_OES:
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return GST_GL_TEXTURE_TARGET_EXTERNAL_OES;
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default:
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return GST_GL_TEXTURE_TARGET_NONE;
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}
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}
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const gchar *
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gst_gl_texture_target_to_buffer_pool_option (GstGLTextureTarget target)
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{
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switch (target) {
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case GST_GL_TEXTURE_TARGET_2D:
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return GST_BUFFER_POOL_OPTION_GL_TEXTURE_TARGET_2D;
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case GST_GL_TEXTURE_TARGET_RECTANGLE:
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return GST_BUFFER_POOL_OPTION_GL_TEXTURE_TARGET_RECTANGLE;
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case GST_GL_TEXTURE_TARGET_EXTERNAL_OES:
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return GST_BUFFER_POOL_OPTION_GL_TEXTURE_TARGET_EXTERNAL_OES;
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default:
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return NULL;
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}
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}
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