mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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2645 lines
84 KiB
C
2645 lines
84 KiB
C
/*
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* GStreamer
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* Copyright (C) 2012-2014 Matthew Waters <ystree00@gmail.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 <string.h>
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#include <stdio.h>
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#include "gstglcolorconvert.h"
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#include "gl.h"
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#include "gstglfuncs.h"
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#include "gstglsl_private.h"
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/**
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* SECTION:gstglcolorconvert
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* @title: GstGLColorConvert
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* @short_description: convert between video color spaces and formats
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* @see_also: #GstGLUpload, #GstGLMemory, #GstGLBaseMemory
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*
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* #GstGLColorConvert is an object that converts between color spaces and/or
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* formats using OpenGL Shaders.
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*
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* A #GstGLColorConvert can be created with gst_gl_color_convert_new(), the
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* configuration negotiated with gst_gl_color_convert_transform_caps() and the
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* conversion performed with gst_gl_color_convert_perform().
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*
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* The glcolorconvertelement provides a GStreamer element that uses
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* #GstGLColorConvert to convert between video formats and color spaces.
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*/
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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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static void _do_convert (GstGLContext * context, GstGLColorConvert * convert);
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static gboolean _init_convert (GstGLColorConvert * convert);
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static gboolean _init_convert_fbo (GstGLColorConvert * convert);
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static GstBuffer *_gst_gl_color_convert_perform_unlocked (GstGLColorConvert *
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convert, GstBuffer * inbuf);
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static gboolean _do_convert_draw (GstGLContext * context,
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GstGLColorConvert * convert);
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/* *INDENT-OFF* */
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#define YUV_TO_RGB_COEFFICIENTS \
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"uniform vec3 offset;\n" \
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"uniform vec3 coeff1;\n" \
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"uniform vec3 coeff2;\n" \
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"uniform vec3 coeff3;\n"
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/* FIXME: use the colormatrix support from videoconvert */
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/* BT. 601 standard with the following ranges:
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* Y = [16..235] (of 255)
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* Cb/Cr = [16..240] (of 255)
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*/
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static const gfloat from_yuv_bt601_offset[] = {-0.0625f, -0.5f, -0.5f};
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static const gfloat from_yuv_bt601_rcoeff[] = {1.164f, 0.000f, 1.596f};
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static const gfloat from_yuv_bt601_gcoeff[] = {1.164f,-0.391f,-0.813f};
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static const gfloat from_yuv_bt601_bcoeff[] = {1.164f, 2.018f, 0.000f};
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/* BT. 709 standard with the following ranges:
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* Y = [16..235] (of 255)
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* Cb/Cr = [16..240] (of 255)
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*/
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static const gfloat from_yuv_bt709_offset[] = {-0.0625f, -0.5f, -0.5f};
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static const gfloat from_yuv_bt709_rcoeff[] = {1.164f, 0.000f, 1.787f};
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static const gfloat from_yuv_bt709_gcoeff[] = {1.164f,-0.213f,-0.531f};
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static const gfloat from_yuv_bt709_bcoeff[] = {1.164f,2.112f, 0.000f};
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#define RGB_TO_YUV_COEFFICIENTS \
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"uniform vec3 offset;\n" \
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"uniform vec3 coeff1;\n" \
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"uniform vec3 coeff2;\n" \
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"uniform vec3 coeff3;\n"
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/* Matrix inverses of the color matrices found above */
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/* BT. 601 standard with the following ranges:
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* Y = [16..235] (of 255)
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* Cb/Cr = [16..240] (of 255)
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*/
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static const gfloat from_rgb_bt601_offset[] = {0.0625f, 0.5f, 0.5f};
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static const gfloat from_rgb_bt601_ycoeff[] = {0.256816f, 0.504154f, 0.0979137f};
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static const gfloat from_rgb_bt601_ucoeff[] = {-0.148246f, -0.29102f, 0.439266f};
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static const gfloat from_rgb_bt601_vcoeff[] = {0.439271f, -0.367833f, -0.071438f};
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/* BT. 709 standard with the following ranges:
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* Y = [16..235] (of 255)
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* Cb/Cr = [16..240] (of 255)
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*/
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static const gfloat from_rgb_bt709_offset[] = {0.0625f, 0.5f, 0.5f};
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static const gfloat from_rgb_bt709_ycoeff[] = {0.182604f, 0.614526f, 0.061976f};
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static const gfloat from_rgb_bt709_ucoeff[] = {-0.100640f, -0.338688f, 0.439327f};
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static const gfloat from_rgb_bt709_vcoeff[] = {0.440654f, -0.400285f, -0.040370f};
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/* GRAY16 to RGB conversion
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* data transfered as GL_LUMINANCE_ALPHA then convert back to GRAY16
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* high byte weight as : 255*256/65535
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* ([0~1] denormalize to [0~255],shift to high byte,normalize to [0~1])
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* low byte weight as : 255/65535 (similar)
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* */
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#define COMPOSE_WEIGHT \
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"const vec2 compose_weight = vec2(0.996109, 0.003891);\n"
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#define DEFAULT_UNIFORMS \
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"uniform vec2 tex_scale0;\n" \
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"uniform vec2 tex_scale1;\n" \
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"uniform vec2 tex_scale2;\n" \
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"uniform float width;\n" \
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"uniform float height;\n" \
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"uniform float poffset_x;\n" \
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"uniform float poffset_y;\n"
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#define MAX_FUNCTIONS 4
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#define glsl_OES_extension_string "#extension GL_OES_EGL_image_external : require \n"
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struct shader_templ
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{
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const gchar *extensions;
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const gchar *uniforms;
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const gchar *functions[MAX_FUNCTIONS];
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GstGLTextureTarget target;
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};
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#define glsl_func_yuv_to_rgb \
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"vec3 yuv_to_rgb (vec3 val, vec3 offset, vec3 ycoeff, vec3 ucoeff, vec3 vcoeff) {\n" \
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" vec3 rgb;\n" \
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" val += offset;\n" \
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" rgb.r = dot(val, ycoeff);\n" \
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" rgb.g = dot(val, ucoeff);\n" \
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" rgb.b = dot(val, vcoeff);\n" \
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" return rgb;\n" \
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"}\n"
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#define glsl_func_rgb_to_yuv \
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"vec3 rgb_to_yuv (vec3 val, vec3 offset, vec3 rcoeff, vec3 gcoeff, vec3 bcoeff) {\n" \
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" vec3 yuv;\n" \
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" yuv.r = dot(val.rgb, rcoeff);\n" \
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" yuv.g = dot(val.rgb, gcoeff);\n" \
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" yuv.b = dot(val.rgb, bcoeff);\n" \
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" yuv += offset;\n" \
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" return yuv;\n" \
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"}\n"
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/* Channel reordering for XYZ <-> ZYX conversion */
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static const gchar templ_REORDER_BODY[] =
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"vec4 t = texture2D(tex, texcoord * tex_scale0);\n"
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"%s\n" /* clobber alpha channel? */
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"gl_FragColor = vec4(t.%c, t.%c, t.%c, t.%c);\n";
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static const struct shader_templ templ_REORDER =
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{ NULL,
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DEFAULT_UNIFORMS "uniform sampler2D tex;\n",
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{ NULL, },
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GST_GL_TEXTURE_TARGET_2D
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};
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/* GRAY16 to RGB conversion
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* data transfered as GL_LUMINANCE_ALPHA then convert back to GRAY16
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* high byte weight as : 255*256/65535
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* ([0~1] denormalize to [0~255],shift to high byte,normalize to [0~1])
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* low byte weight as : 255/65535 (similar)
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* */
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static const gchar templ_COMPOSE_BODY[] =
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"vec4 rgba;\n"
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"vec4 t = texture2D(tex, texcoord * tex_scale0);\n"
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"rgba.rgb = vec3 (dot(t.%c%c, compose_weight));"
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"rgba.a = 1.0;\n"
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"gl_FragColor = vec4(rgba.%c, rgba.%c, rgba.%c, rgba.%c);\n";
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static const struct shader_templ templ_COMPOSE =
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{ NULL,
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DEFAULT_UNIFORMS COMPOSE_WEIGHT "uniform sampler2D tex;\n",
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{ NULL, },
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GST_GL_TEXTURE_TARGET_2D
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};
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static const gchar templ_AYUV_to_RGB_BODY[] =
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"vec4 texel, rgba;\n"
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"texel = texture2D(tex, texcoord * tex_scale0);\n"
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"rgba.rgb = yuv_to_rgb (texel.yzw, offset, coeff1, coeff2, coeff3);\n"
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"rgba.a = texel.r;\n"
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"gl_FragColor=vec4(rgba.%c,rgba.%c,rgba.%c,rgba.%c);\n";
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static const struct shader_templ templ_AYUV_to_RGB =
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{ NULL,
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DEFAULT_UNIFORMS YUV_TO_RGB_COEFFICIENTS "uniform sampler2D tex;\n",
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{ glsl_func_yuv_to_rgb, NULL, },
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GST_GL_TEXTURE_TARGET_2D
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};
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static const gchar templ_RGB_to_AYUV_BODY[] =
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"vec4 texel, ayuv;\n"
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"texel = texture2D(tex, texcoord).%c%c%c%c;\n"
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"ayuv.yzw = rgb_to_yuv (texel.rgb, offset, coeff1, coeff2, coeff3);\n"
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"ayuv.x = %s;\n"
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"gl_FragColor = ayuv;\n";
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static const struct shader_templ templ_RGB_to_AYUV =
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{ NULL,
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DEFAULT_UNIFORMS RGB_TO_YUV_COEFFICIENTS "uniform sampler2D tex;\n",
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{ glsl_func_rgb_to_yuv, NULL, },
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GST_GL_TEXTURE_TARGET_2D
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};
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static const gchar templ_VUYA_to_RGB_BODY[] =
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"vec4 texel, rgba;\n"
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"texel = texture2D(tex, texcoord * tex_scale0);\n"
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"rgba.rgb = yuv_to_rgb (texel.zyx, offset, coeff1, coeff2, coeff3);\n"
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"rgba.a = texel.w;\n"
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"gl_FragColor=vec4(rgba.%c,rgba.%c,rgba.%c,rgba.%c);\n";
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static const struct shader_templ templ_VUYA_to_RGB =
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{ NULL,
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DEFAULT_UNIFORMS YUV_TO_RGB_COEFFICIENTS "uniform sampler2D tex;\n",
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{ glsl_func_yuv_to_rgb, NULL, },
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GST_GL_TEXTURE_TARGET_2D
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};
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static const gchar templ_RGB_to_VUYA_BODY[] =
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"vec4 texel, ayuv;\n"
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"texel = texture2D(tex, texcoord).%c%c%c%c;\n"
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"ayuv.zyx = rgb_to_yuv (texel.rgb, offset, coeff1, coeff2, coeff3);\n"
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"ayuv.w = %s;\n"
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"gl_FragColor = ayuv;\n";
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static const struct shader_templ templ_RGB_to_VUYA =
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{ NULL,
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DEFAULT_UNIFORMS RGB_TO_YUV_COEFFICIENTS "uniform sampler2D tex;\n",
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{ glsl_func_rgb_to_yuv, NULL, },
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GST_GL_TEXTURE_TARGET_2D
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};
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/* YUV to RGB conversion */
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static const gchar templ_PLANAR_YUV_to_RGB_BODY[] =
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"vec4 texel, rgba;\n"
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/* FIXME: should get the sampling right... */
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"texel.x = texture2D(Ytex, texcoord * tex_scale0).r;\n"
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"texel.y = texture2D(Utex, texcoord * tex_scale1).r;\n"
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"texel.z = texture2D(Vtex, texcoord * tex_scale2).r;\n"
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"rgba.rgb = yuv_to_rgb (texel.xyz, offset, coeff1, coeff2, coeff3);\n"
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"rgba.a = 1.0;\n"
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"gl_FragColor=vec4(rgba.%c,rgba.%c,rgba.%c,rgba.%c);\n";
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static const struct shader_templ templ_PLANAR_YUV_to_RGB =
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{ NULL,
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DEFAULT_UNIFORMS YUV_TO_RGB_COEFFICIENTS "uniform sampler2D Ytex, Utex, Vtex;\n",
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{ glsl_func_yuv_to_rgb, NULL, },
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GST_GL_TEXTURE_TARGET_2D
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};
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static const gchar templ_RGB_to_PLANAR_YUV_BODY[] =
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"vec4 texel;\n"
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"vec3 yuv;\n"
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"texel = texture2D(tex, texcoord).%c%c%c%c;\n"
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/* FIXME: this is not quite correct yet */
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"vec4 uv_texel = vec4(0.0);\n"
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/* One u and v sample can be generated by a nxm sized block given by */
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/* @chroma_sampling. The result is the average of all the values in the */
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/* block computed with a rolling average. */
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"vec2 unnormalization;\n"
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"if (texcoord.x == v_texcoord.x) {\n"
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" unnormalization = vec2(width, height);\n"
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"} else {\n"
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" unnormalization = vec2 (1.0);\n"
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"}\n"
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/* scale for chroma size */
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"vec2 chroma_pos = texcoord * chroma_sampling * unnormalization;\n"
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/* offset chroma to the center of the first texel in the block */
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"chroma_pos -= clamp(chroma_sampling * 0.5 - 0.5, vec2(0.0), chroma_sampling);\n"
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"if (chroma_pos.x < width && chroma_pos.y < height) {\n"
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" for (int i = 0; i < int(chroma_sampling.x); i++) {\n"
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" vec2 delta = vec2 (float(i), 0.0);\n"
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" for (int j = 0; j < int(chroma_sampling.y); j++) {\n"
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" int n = (i+1)*(j+1);\n"
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" delta.y = float(j);\n"
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" vec4 s = texture2D(tex, (chroma_pos + delta) / unnormalization).%c%c%c%c;\n"
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/* rolling average */
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" uv_texel = (float(n-1) * uv_texel + s) / float(n);\n"
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" }\n"
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" }\n"
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"}\n"
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"yuv.x = rgb_to_yuv (texel.rgb, offset, coeff1, coeff2, coeff3).x;\n"
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"yuv.yz = rgb_to_yuv (uv_texel.rgb, offset, coeff1, coeff2, coeff3).yz;\n"
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"gl_FragData[0] = vec4(yuv.x, 0.0, 0.0, 1.0);\n"
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"gl_FragData[1] = vec4(yuv.y, 0.0, 0.0, 1.0);\n"
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"gl_FragData[2] = vec4(yuv.z, 0.0, 0.0, 1.0);\n";
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static const struct shader_templ templ_RGB_to_PLANAR_YUV =
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{ NULL,
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DEFAULT_UNIFORMS RGB_TO_YUV_COEFFICIENTS "uniform sampler2D tex;\n"
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"uniform vec2 chroma_sampling;\n",
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{ glsl_func_rgb_to_yuv, NULL, },
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GST_GL_TEXTURE_TARGET_2D
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};
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/* NV12/NV21 to RGB conversion */
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static const gchar templ_NV12_NV21_to_RGB_BODY[] =
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"vec4 rgba;\n"
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"vec3 yuv;\n"
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/* FIXME: should get the sampling right... */
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"yuv.x=texture2D(Ytex, texcoord * tex_scale0).r;\n"
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"yuv.yz=texture2D(UVtex, texcoord * tex_scale1).%c%c;\n"
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"rgba.rgb = yuv_to_rgb (yuv, offset, coeff1, coeff2, coeff3);\n"
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"rgba.a = 1.0;\n"
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"gl_FragColor=vec4(rgba.%c,rgba.%c,rgba.%c,rgba.%c);\n";
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static const struct shader_templ templ_NV12_NV21_to_RGB =
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{ NULL,
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DEFAULT_UNIFORMS YUV_TO_RGB_COEFFICIENTS "uniform sampler2D Ytex, UVtex;\n",
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{ glsl_func_yuv_to_rgb, NULL, },
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GST_GL_TEXTURE_TARGET_2D
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};
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/* RGB to NV12/NV21 conversion */
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/* NV12: u, v
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NV21: v, u */
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static const gchar templ_RGB_to_NV12_NV21_BODY[] =
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"vec4 texel, uv_texel;\n"
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"vec3 yuv;\n"
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"texel = texture2D(tex, texcoord).%c%c%c%c;\n"
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"uv_texel = texture2D(tex, texcoord * tex_scale0 * 2.0).%c%c%c%c;\n"
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"yuv.x = rgb_to_yuv (texel.rgb, offset, coeff1, coeff2, coeff3).x;\n"
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"yuv.yz = rgb_to_yuv (uv_texel.rgb, offset, coeff1, coeff2, coeff3).yz;\n"
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"gl_FragData[0] = vec4(yuv.x, 0.0, 0.0, 1.0);\n"
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"gl_FragData[1] = vec4(yuv.%c, yuv.%c, 0.0, 1.0);\n";
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static const struct shader_templ templ_RGB_to_NV12_NV21 =
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{ NULL,
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DEFAULT_UNIFORMS RGB_TO_YUV_COEFFICIENTS "uniform sampler2D tex;\n",
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{ glsl_func_rgb_to_yuv, NULL, },
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GST_GL_TEXTURE_TARGET_2D
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};
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/* YUY2:r,g,a
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UYVY:a,b,r */
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static const gchar templ_YUY2_UYVY_to_RGB_BODY[] =
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"vec4 rgba, uv_texel;\n"
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"vec3 yuv;\n"
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/* FIXME: should get the sampling right... */
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"float dx1 = -poffset_x;\n"
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"float dx2 = 0.0;\n"
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"yuv.x = texture2D(Ytex, texcoord * tex_scale0).%c;\n"
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/* v_texcoord are normalized, texcoord may not be e.g. rectangle textures */
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"float inorder = mod (v_texcoord.x * width, 2.0);\n"
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"if (inorder < 1.0) {\n"
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" dx2 = -dx1;\n"
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" dx1 = 0.0;\n"
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"}\n"
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"uv_texel.rg = texture2D(Ytex, texcoord * tex_scale0 + vec2(dx1, 0.0)).r%c;\n"
|
|
"uv_texel.ba = texture2D(Ytex, texcoord * tex_scale0 + vec2(dx2, 0.0)).r%c;\n"
|
|
"yuv.yz = uv_texel.%c%c;\n"
|
|
"rgba.rgb = yuv_to_rgb (yuv, offset, coeff1, coeff2, coeff3);\n"
|
|
"rgba.a = 1.0;\n"
|
|
"gl_FragColor = vec4(rgba.%c,rgba.%c,rgba.%c,rgba.%c);\n";
|
|
|
|
static const struct shader_templ templ_YUY2_UYVY_to_RGB =
|
|
{ NULL,
|
|
DEFAULT_UNIFORMS YUV_TO_RGB_COEFFICIENTS "uniform sampler2D Ytex;\n",
|
|
{ glsl_func_yuv_to_rgb, NULL, },
|
|
GST_GL_TEXTURE_TARGET_2D
|
|
};
|
|
|
|
static const gchar templ_RGB_to_YUY2_UYVY_BODY[] =
|
|
"vec4 texel1, texel2;\n"
|
|
"vec3 yuv, yuv1, yuv2;\n"
|
|
"float fx, dx, fy;\n"
|
|
/* v_texcoord are normalized, texcoord may not be e.g. rectangle textures */
|
|
"float inorder = mod (v_texcoord.x * width, 2.0);\n"
|
|
"fx = texcoord.x;\n"
|
|
"dx = poffset_x;\n"
|
|
"if (inorder > 1.0) {\n"
|
|
" dx = -dx;\n"
|
|
"}\n"
|
|
"fy = texcoord.y;\n"
|
|
"texel1 = texture2D(tex, vec2(fx, fy)).%c%c%c%c;\n"
|
|
"texel2 = texture2D(tex, vec2(fx + dx, fy)).%c%c%c%c;\n"
|
|
"yuv1 = rgb_to_yuv (texel1.rgb, offset, coeff1, coeff2, coeff3);\n"
|
|
"yuv2 = rgb_to_yuv (texel2.rgb, offset, coeff1, coeff2, coeff3);\n"
|
|
"yuv.x = yuv1.x;\n"
|
|
"yuv.yz = (yuv1.yz + yuv2.yz) * 0.5;\n"
|
|
"if (inorder < 1.0) {\n"
|
|
" gl_FragColor = vec4(yuv.%c, yuv.%c, 0.0, 0.0);\n"
|
|
"} else {\n"
|
|
" gl_FragColor = vec4(yuv.%c, yuv.%c, 0.0, 0.0);\n"
|
|
"}\n";
|
|
|
|
static const struct shader_templ templ_RGB_to_YUY2_UYVY =
|
|
{ NULL,
|
|
DEFAULT_UNIFORMS RGB_TO_YUV_COEFFICIENTS "uniform sampler2D tex;\n",
|
|
{ glsl_func_rgb_to_yuv, NULL, },
|
|
GST_GL_TEXTURE_TARGET_2D
|
|
};
|
|
|
|
static const gchar text_vertex_shader[] =
|
|
"attribute vec4 a_position; \n"
|
|
"attribute vec2 a_texcoord; \n"
|
|
"varying vec2 v_texcoord; \n"
|
|
"void main() \n"
|
|
"{ \n"
|
|
" gl_Position = a_position; \n"
|
|
" v_texcoord = a_texcoord; \n"
|
|
"} \n";
|
|
|
|
static const GLfloat vertices[] = {
|
|
1.0f, -1.0f, 0.0f, 1.0f, 0.0f,
|
|
-1.0f, -1.0f, 0.0f, 0.0f, 0.0f,
|
|
-1.0f, 1.0f, 0.0f, 0.0f, 1.0f,
|
|
1.0f, 1.0f, 0.0f, 1.0f, 1.0f
|
|
};
|
|
|
|
static const GLushort indices[] = { 0, 1, 2, 0, 2, 3 };
|
|
|
|
/* *INDENT-ON* */
|
|
|
|
struct ConvertInfo
|
|
{
|
|
gint in_n_textures;
|
|
gint out_n_textures;
|
|
const struct shader_templ *templ;
|
|
gchar *frag_body;
|
|
gchar *frag_prog;
|
|
const gchar *shader_tex_names[GST_VIDEO_MAX_PLANES];
|
|
gfloat *cms_offset;
|
|
gfloat *cms_coeff1; /* r,y */
|
|
gfloat *cms_coeff2; /* g,u */
|
|
gfloat *cms_coeff3; /* b,v */
|
|
gfloat chroma_sampling[2];
|
|
};
|
|
|
|
struct _GstGLColorConvertPrivate
|
|
{
|
|
gboolean result;
|
|
|
|
struct ConvertInfo convert_info;
|
|
|
|
GstGLTextureTarget from_texture_target;
|
|
GstGLTextureTarget to_texture_target;
|
|
|
|
GstGLMemory *in_tex[GST_VIDEO_MAX_PLANES];
|
|
GstGLMemory *out_tex[GST_VIDEO_MAX_PLANES];
|
|
|
|
GstGLFormat in_tex_formats[GST_VIDEO_MAX_PLANES];
|
|
|
|
GLuint vao;
|
|
GLuint vertex_buffer;
|
|
GLuint vbo_indices;
|
|
GLuint attr_position;
|
|
GLuint attr_texture;
|
|
|
|
GstCaps *in_caps;
|
|
GstCaps *out_caps;
|
|
|
|
GstBufferPool *pool;
|
|
gboolean pool_started;
|
|
};
|
|
|
|
GST_DEBUG_CATEGORY_STATIC (gst_gl_color_convert_debug);
|
|
#define GST_CAT_DEFAULT gst_gl_color_convert_debug
|
|
|
|
#define DEBUG_INIT \
|
|
GST_DEBUG_CATEGORY_INIT (gst_gl_color_convert_debug, "glconvert", 0, "convert");
|
|
|
|
G_DEFINE_TYPE_WITH_CODE (GstGLColorConvert, gst_gl_color_convert,
|
|
GST_TYPE_OBJECT, G_ADD_PRIVATE (GstGLColorConvert) DEBUG_INIT);
|
|
|
|
static void gst_gl_color_convert_finalize (GObject * object);
|
|
static void gst_gl_color_convert_reset (GstGLColorConvert * convert);
|
|
|
|
#define GST_GL_COLOR_CONVERT_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), \
|
|
GST_TYPE_GL_COLOR_CONVERT, GstGLColorConvertPrivate))
|
|
|
|
static void
|
|
gst_gl_color_convert_class_init (GstGLColorConvertClass * klass)
|
|
{
|
|
G_OBJECT_CLASS (klass)->finalize = gst_gl_color_convert_finalize;
|
|
}
|
|
|
|
static void
|
|
gst_gl_color_convert_init (GstGLColorConvert * convert)
|
|
{
|
|
convert->priv = gst_gl_color_convert_get_instance_private (convert);
|
|
|
|
gst_gl_color_convert_reset (convert);
|
|
}
|
|
|
|
/**
|
|
* gst_gl_color_convert_new:
|
|
* @context: a #GstGLContext
|
|
*
|
|
* Returns: (transfer full): a new #GstGLColorConvert object
|
|
*
|
|
* Since: 1.4
|
|
*/
|
|
GstGLColorConvert *
|
|
gst_gl_color_convert_new (GstGLContext * context)
|
|
{
|
|
GstGLColorConvert *convert;
|
|
|
|
convert = g_object_new (GST_TYPE_GL_COLOR_CONVERT, NULL);
|
|
gst_object_ref_sink (convert);
|
|
|
|
convert->context = gst_object_ref (context);
|
|
|
|
gst_video_info_set_format (&convert->in_info, GST_VIDEO_FORMAT_ENCODED, 0, 0);
|
|
gst_video_info_set_format (&convert->out_info, GST_VIDEO_FORMAT_ENCODED, 0,
|
|
0);
|
|
|
|
GST_DEBUG_OBJECT (convert,
|
|
"Created new colorconvert for context %" GST_PTR_FORMAT, context);
|
|
|
|
return convert;
|
|
}
|
|
|
|
static void
|
|
gst_gl_color_convert_finalize (GObject * object)
|
|
{
|
|
GstGLColorConvert *convert;
|
|
|
|
convert = GST_GL_COLOR_CONVERT (object);
|
|
|
|
gst_gl_color_convert_reset (convert);
|
|
|
|
if (convert->context) {
|
|
gst_object_unref (convert->context);
|
|
convert->context = NULL;
|
|
}
|
|
|
|
G_OBJECT_CLASS (gst_gl_color_convert_parent_class)->finalize (object);
|
|
}
|
|
|
|
static void
|
|
_reset_gl (GstGLContext * context, GstGLColorConvert * convert)
|
|
{
|
|
const GstGLFuncs *gl = context->gl_vtable;
|
|
|
|
if (convert->priv->vao) {
|
|
gl->DeleteVertexArrays (1, &convert->priv->vao);
|
|
convert->priv->vao = 0;
|
|
}
|
|
|
|
if (convert->priv->vertex_buffer) {
|
|
gl->DeleteBuffers (1, &convert->priv->vertex_buffer);
|
|
convert->priv->vertex_buffer = 0;
|
|
}
|
|
|
|
if (convert->priv->vbo_indices) {
|
|
gl->DeleteBuffers (1, &convert->priv->vbo_indices);
|
|
convert->priv->vbo_indices = 0;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_gl_color_convert_reset_shader (GstGLColorConvert * convert)
|
|
{
|
|
convert->priv->convert_info.chroma_sampling[0] = 1.0f;
|
|
convert->priv->convert_info.chroma_sampling[1] = 1.0f;
|
|
|
|
if (convert->priv->convert_info.frag_prog) {
|
|
g_free (convert->priv->convert_info.frag_prog);
|
|
convert->priv->convert_info.frag_prog = NULL;
|
|
}
|
|
if (convert->priv->convert_info.frag_body) {
|
|
g_free (convert->priv->convert_info.frag_body);
|
|
convert->priv->convert_info.frag_body = NULL;
|
|
}
|
|
if (convert->shader) {
|
|
gst_object_unref (convert->shader);
|
|
convert->shader = NULL;
|
|
}
|
|
|
|
convert->initted = FALSE;
|
|
}
|
|
|
|
static void
|
|
gst_gl_color_convert_reset (GstGLColorConvert * convert)
|
|
{
|
|
guint i;
|
|
|
|
if (convert->fbo) {
|
|
gst_object_unref (convert->fbo);
|
|
convert->fbo = NULL;
|
|
}
|
|
|
|
for (i = 0; i < convert->priv->convert_info.out_n_textures; i++) {
|
|
if (convert->priv->out_tex[i])
|
|
gst_memory_unref ((GstMemory *) convert->priv->out_tex[i]);
|
|
convert->priv->out_tex[i] = NULL;
|
|
}
|
|
|
|
if (convert->priv->pool) {
|
|
convert->priv->pool_started = FALSE;
|
|
|
|
gst_object_unref (convert->priv->pool);
|
|
convert->priv->pool = NULL;
|
|
}
|
|
|
|
gst_caps_replace (&convert->priv->in_caps, NULL);
|
|
gst_caps_replace (&convert->priv->out_caps, NULL);
|
|
|
|
if (convert->context) {
|
|
gst_gl_context_thread_add (convert->context,
|
|
(GstGLContextThreadFunc) _reset_gl, convert);
|
|
}
|
|
|
|
gst_gl_color_convert_reset_shader (convert);
|
|
}
|
|
|
|
static gboolean
|
|
_gst_gl_color_convert_can_passthrough_info (GstVideoInfo * in,
|
|
GstVideoInfo * out)
|
|
{
|
|
gint i;
|
|
|
|
if (GST_VIDEO_INFO_FORMAT (in) != GST_VIDEO_INFO_FORMAT (out))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_WIDTH (in) != GST_VIDEO_INFO_WIDTH (out))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_HEIGHT (in) != GST_VIDEO_INFO_HEIGHT (out))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_SIZE (in) != GST_VIDEO_INFO_SIZE (out))
|
|
return FALSE;
|
|
|
|
for (i = 0; i < in->finfo->n_planes; i++) {
|
|
if (in->stride[i] != out->stride[i])
|
|
return FALSE;
|
|
if (in->offset[i] != out->offset[i])
|
|
return FALSE;
|
|
}
|
|
|
|
if (!gst_video_colorimetry_is_equal (&in->colorimetry, &out->colorimetry))
|
|
return FALSE;
|
|
if (in->chroma_site != out->chroma_site)
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
_gst_gl_color_convert_set_caps_unlocked (GstGLColorConvert * convert,
|
|
GstCaps * in_caps, GstCaps * out_caps)
|
|
{
|
|
GstVideoInfo in_info, out_info;
|
|
GstCapsFeatures *in_features, *out_features;
|
|
GstGLTextureTarget from_target, to_target;
|
|
gboolean passthrough;
|
|
|
|
g_return_val_if_fail (convert != NULL, FALSE);
|
|
g_return_val_if_fail (in_caps, FALSE);
|
|
g_return_val_if_fail (out_caps, FALSE);
|
|
|
|
GST_LOG_OBJECT (convert, "Setting caps in %" GST_PTR_FORMAT
|
|
" out %" GST_PTR_FORMAT, in_caps, out_caps);
|
|
|
|
if (!gst_video_info_from_caps (&in_info, in_caps))
|
|
g_assert_not_reached ();
|
|
|
|
if (!gst_video_info_from_caps (&out_info, out_caps))
|
|
g_assert_not_reached ();
|
|
|
|
g_return_val_if_fail (GST_VIDEO_INFO_FORMAT (&in_info) !=
|
|
GST_VIDEO_FORMAT_UNKNOWN, FALSE);
|
|
g_return_val_if_fail (GST_VIDEO_INFO_FORMAT (&in_info) !=
|
|
GST_VIDEO_FORMAT_ENCODED, FALSE);
|
|
g_return_val_if_fail (GST_VIDEO_INFO_FORMAT (&out_info) !=
|
|
GST_VIDEO_FORMAT_UNKNOWN, FALSE);
|
|
g_return_val_if_fail (GST_VIDEO_INFO_FORMAT (&out_info) !=
|
|
GST_VIDEO_FORMAT_ENCODED, FALSE);
|
|
|
|
in_features = gst_caps_get_features (in_caps, 0);
|
|
out_features = gst_caps_get_features (out_caps, 0);
|
|
|
|
if (!gst_caps_features_contains (in_features,
|
|
GST_CAPS_FEATURE_MEMORY_GL_MEMORY)
|
|
|| !gst_caps_features_contains (out_features,
|
|
GST_CAPS_FEATURE_MEMORY_GL_MEMORY)) {
|
|
return FALSE;
|
|
}
|
|
|
|
{
|
|
GstStructure *in_s = gst_caps_get_structure (in_caps, 0);
|
|
GstStructure *out_s = gst_caps_get_structure (out_caps, 0);
|
|
|
|
if (gst_structure_has_field_typed (in_s, "texture-target", G_TYPE_STRING))
|
|
from_target =
|
|
gst_gl_texture_target_from_string (gst_structure_get_string (in_s,
|
|
"texture-target"));
|
|
else
|
|
from_target = GST_GL_TEXTURE_TARGET_2D;
|
|
|
|
if (gst_structure_has_field_typed (out_s, "texture-target", G_TYPE_STRING))
|
|
to_target =
|
|
gst_gl_texture_target_from_string (gst_structure_get_string (out_s,
|
|
"texture-target"));
|
|
else
|
|
to_target = GST_GL_TEXTURE_TARGET_2D;
|
|
|
|
if (to_target == GST_GL_TEXTURE_TARGET_NONE
|
|
|| from_target == GST_GL_TEXTURE_TARGET_NONE)
|
|
/* invalid caps */
|
|
return FALSE;
|
|
}
|
|
|
|
if (gst_video_info_is_equal (&convert->in_info, &in_info) &&
|
|
gst_video_info_is_equal (&convert->out_info, &out_info) &&
|
|
convert->priv->from_texture_target == from_target &&
|
|
convert->priv->to_texture_target == to_target)
|
|
return TRUE;
|
|
|
|
/* If input and output are identical, pass through directly */
|
|
passthrough =
|
|
_gst_gl_color_convert_can_passthrough_info (&in_info, &out_info) &&
|
|
from_target == to_target;
|
|
|
|
if (!passthrough && to_target != GST_GL_TEXTURE_TARGET_2D
|
|
&& to_target != GST_GL_TEXTURE_TARGET_RECTANGLE)
|
|
return FALSE;
|
|
|
|
{
|
|
guint yuv_gray_flags, in_flags, out_flags;
|
|
|
|
in_flags = GST_VIDEO_FORMAT_INFO_FLAGS (in_info.finfo);
|
|
out_flags = GST_VIDEO_FORMAT_INFO_FLAGS (out_info.finfo);
|
|
yuv_gray_flags = GST_VIDEO_FORMAT_FLAG_YUV | GST_VIDEO_FORMAT_FLAG_GRAY;
|
|
|
|
/* GRAY/YUV -> GRAY/YUV is not supported for non-passthrough */
|
|
if (!passthrough && (in_flags & yuv_gray_flags) != 0
|
|
&& (out_flags & yuv_gray_flags) != 0)
|
|
return FALSE;
|
|
}
|
|
|
|
gst_gl_color_convert_reset (convert);
|
|
convert->in_info = in_info;
|
|
convert->out_info = out_info;
|
|
gst_caps_replace (&convert->priv->in_caps, in_caps);
|
|
gst_caps_replace (&convert->priv->out_caps, out_caps);
|
|
convert->priv->from_texture_target = from_target;
|
|
convert->priv->to_texture_target = to_target;
|
|
convert->initted = FALSE;
|
|
|
|
convert->passthrough = passthrough;
|
|
#ifndef GST_DISABLE_GST_DEBUG
|
|
if (G_UNLIKELY (convert->passthrough))
|
|
GST_DEBUG_OBJECT (convert,
|
|
"Configuring passthrough mode for same in/out caps");
|
|
else {
|
|
GST_DEBUG_OBJECT (convert, "Color converting %" GST_PTR_FORMAT
|
|
" to %" GST_PTR_FORMAT, in_caps, out_caps);
|
|
}
|
|
#endif
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_gl_color_convert_set_caps:
|
|
* @convert: a #GstGLColorConvert
|
|
* @in_caps: input #GstCaps
|
|
* @out_caps: output #GstCaps
|
|
*
|
|
* Initializes @convert with the information required for conversion.
|
|
*
|
|
* Since: 1.6
|
|
*/
|
|
gboolean
|
|
gst_gl_color_convert_set_caps (GstGLColorConvert * convert,
|
|
GstCaps * in_caps, GstCaps * out_caps)
|
|
{
|
|
gboolean ret;
|
|
|
|
GST_OBJECT_LOCK (convert);
|
|
ret = _gst_gl_color_convert_set_caps_unlocked (convert, in_caps, out_caps);
|
|
GST_OBJECT_UNLOCK (convert);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* gst_gl_color_convert_decide_allocation:
|
|
* @convert: a #GstGLColorConvert
|
|
* @query: a completed ALLOCATION #GstQuery
|
|
*
|
|
* Provides an implementation of #GstBaseTransformClass.decide_allocation()
|
|
*
|
|
* Returns: whether the allocation parameters were successfully chosen
|
|
*
|
|
* Since: 1.8
|
|
*/
|
|
gboolean
|
|
gst_gl_color_convert_decide_allocation (GstGLColorConvert * convert,
|
|
GstQuery * query)
|
|
{
|
|
GstBufferPool *pool = NULL;
|
|
GstStructure *config;
|
|
GstCaps *caps;
|
|
guint min, max, size, n, i;
|
|
gboolean update_pool;
|
|
GstGLVideoAllocationParams *params;
|
|
GstVideoInfo vinfo;
|
|
|
|
gst_query_parse_allocation (query, &caps, NULL);
|
|
if (!caps)
|
|
return FALSE;
|
|
|
|
gst_video_info_from_caps (&vinfo, caps);
|
|
|
|
n = gst_query_get_n_allocation_pools (query);
|
|
if (n > 0) {
|
|
update_pool = TRUE;
|
|
for (i = 0; i < n; i++) {
|
|
gst_query_parse_nth_allocation_pool (query, i, &pool, &size, &min, &max);
|
|
|
|
if (!pool || !GST_IS_GL_BUFFER_POOL (pool)) {
|
|
if (pool)
|
|
gst_object_unref (pool);
|
|
pool = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!pool) {
|
|
GstVideoInfo vinfo;
|
|
|
|
gst_video_info_init (&vinfo);
|
|
size = vinfo.size;
|
|
min = max = 0;
|
|
update_pool = FALSE;
|
|
}
|
|
|
|
if (!pool)
|
|
pool = gst_gl_buffer_pool_new (convert->context);
|
|
|
|
config = gst_buffer_pool_get_config (pool);
|
|
|
|
gst_buffer_pool_config_set_params (config, caps, size, min, max);
|
|
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
|
|
if (gst_query_find_allocation_meta (query, GST_GL_SYNC_META_API_TYPE, NULL))
|
|
gst_buffer_pool_config_add_option (config,
|
|
GST_BUFFER_POOL_OPTION_GL_SYNC_META);
|
|
|
|
params = gst_gl_video_allocation_params_new (convert->context, NULL, &vinfo,
|
|
0, NULL, convert->priv->to_texture_target, 0);
|
|
gst_buffer_pool_config_set_gl_allocation_params (config,
|
|
(GstGLAllocationParams *) params);
|
|
gst_gl_allocation_params_free ((GstGLAllocationParams *) params);
|
|
|
|
if (!gst_buffer_pool_set_config (pool, config))
|
|
GST_WARNING_OBJECT (convert, "Failed to set buffer pool config");
|
|
|
|
if (update_pool)
|
|
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
|
|
else
|
|
gst_query_add_allocation_pool (query, pool, size, min, max);
|
|
|
|
if (convert->priv->pool) {
|
|
gst_object_unref (convert->priv->pool);
|
|
convert->priv->pool_started = FALSE;
|
|
}
|
|
convert->priv->pool = pool;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
_init_value_string_list (GValue * list, ...)
|
|
{
|
|
GValue item = G_VALUE_INIT;
|
|
gchar *str;
|
|
va_list args;
|
|
|
|
g_value_init (list, GST_TYPE_LIST);
|
|
|
|
va_start (args, list);
|
|
while ((str = va_arg (args, gchar *))) {
|
|
g_value_init (&item, G_TYPE_STRING);
|
|
g_value_set_string (&item, str);
|
|
|
|
gst_value_list_append_value (list, &item);
|
|
g_value_unset (&item);
|
|
}
|
|
va_end (args);
|
|
}
|
|
|
|
static void
|
|
_append_value_string_list (GValue * list, ...)
|
|
{
|
|
GValue item = G_VALUE_INIT;
|
|
gchar *str;
|
|
va_list args;
|
|
|
|
va_start (args, list);
|
|
while ((str = va_arg (args, gchar *))) {
|
|
g_value_init (&item, G_TYPE_STRING);
|
|
g_value_set_string (&item, str);
|
|
|
|
gst_value_list_append_value (list, &item);
|
|
g_value_unset (&item);
|
|
}
|
|
va_end (args);
|
|
}
|
|
|
|
static void
|
|
_init_supported_formats (GstGLContext * context, gboolean output,
|
|
GValue * supported_formats)
|
|
{
|
|
/* Assume if context == NULL that we don't have a GL context and can
|
|
* do the conversion */
|
|
|
|
/* Always supported input and output formats */
|
|
_init_value_string_list (supported_formats, "RGBA", "RGB", "RGBx", "BGR",
|
|
"BGRx", "BGRA", "xRGB", "xBGR", "ARGB", "ABGR", "GRAY8", "GRAY16_LE",
|
|
"GRAY16_BE", "AYUV", "VUYA", "YUY2", "UYVY", NULL);
|
|
|
|
/* Always supported input formats or output with multiple draw buffers */
|
|
if (!output || (!context || context->gl_vtable->DrawBuffers))
|
|
_append_value_string_list (supported_formats, "Y444", "I420", "YV12",
|
|
"Y42B", "Y41B", "NV12", "NV21", NULL);
|
|
|
|
/* Requires reading from a RG/LA framebuffer... */
|
|
if (!context || (USING_GLES3 (context) || USING_OPENGL (context)))
|
|
_append_value_string_list (supported_formats, "YUY2", "UYVY", NULL);
|
|
|
|
if (!context || gst_gl_format_is_supported (context, GST_GL_RGBA16))
|
|
_append_value_string_list (supported_formats, "ARGB64", NULL);
|
|
|
|
if (!context || gst_gl_format_is_supported (context, GST_GL_RGB565))
|
|
_append_value_string_list (supported_formats, "RGB16", "BGR16", NULL);
|
|
}
|
|
|
|
/* copies the given caps */
|
|
static GstCaps *
|
|
gst_gl_color_convert_caps_transform_format_info (GstGLContext * context,
|
|
gboolean output, GstCaps * caps)
|
|
{
|
|
GstStructure *st;
|
|
GstCapsFeatures *f;
|
|
gint i, n;
|
|
GstCaps *res;
|
|
GValue supported_formats = G_VALUE_INIT;
|
|
GValue rgb_formats = G_VALUE_INIT;
|
|
GValue supported_rgb_formats = G_VALUE_INIT;
|
|
|
|
/* There are effectively two modes here with the RGB/YUV transition:
|
|
* 1. There is a RGB-like format as input and we can transform to YUV or,
|
|
* 2. No RGB-like format as input so we can only transform to RGB-like formats
|
|
*
|
|
* We also filter down the list of formats depending on what the OpenGL
|
|
* context supports (when provided).
|
|
*/
|
|
|
|
_init_value_string_list (&rgb_formats, "RGBA", "ARGB", "BGRA", "ABGR", "RGBx",
|
|
"xRGB", "BGRx", "xBGR", "RGB", "BGR", "ARGB64", NULL);
|
|
_init_supported_formats (context, output, &supported_formats);
|
|
gst_value_intersect (&supported_rgb_formats, &rgb_formats,
|
|
&supported_formats);
|
|
|
|
res = gst_caps_new_empty ();
|
|
|
|
n = gst_caps_get_size (caps);
|
|
for (i = 0; i < n; i++) {
|
|
const GValue *format;
|
|
|
|
st = gst_caps_get_structure (caps, i);
|
|
f = gst_caps_get_features (caps, i);
|
|
|
|
format = gst_structure_get_value (st, "format");
|
|
st = gst_structure_copy (st);
|
|
if (GST_VALUE_HOLDS_LIST (format)) {
|
|
gboolean have_rgb_formats = FALSE;
|
|
GValue passthrough_formats = G_VALUE_INIT;
|
|
gint j, len;
|
|
|
|
g_value_init (&passthrough_formats, GST_TYPE_LIST);
|
|
len = gst_value_list_get_size (format);
|
|
for (j = 0; j < len; j++) {
|
|
const GValue *val;
|
|
|
|
val = gst_value_list_get_value (format, j);
|
|
if (G_VALUE_HOLDS_STRING (val)) {
|
|
const gchar *format_str = g_value_get_string (val);
|
|
GstVideoFormat v_format = gst_video_format_from_string (format_str);
|
|
const GstVideoFormatInfo *t_info =
|
|
gst_video_format_get_info (v_format);
|
|
if (GST_VIDEO_FORMAT_INFO_FLAGS (t_info) & (GST_VIDEO_FORMAT_FLAG_YUV
|
|
| GST_VIDEO_FORMAT_FLAG_GRAY)) {
|
|
gst_value_list_append_value (&passthrough_formats, val);
|
|
} else if (GST_VIDEO_FORMAT_INFO_FLAGS (t_info) &
|
|
GST_VIDEO_FORMAT_FLAG_RGB) {
|
|
have_rgb_formats = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (have_rgb_formats) {
|
|
gst_structure_set_value (st, "format", &supported_formats);
|
|
} else {
|
|
/* add passthrough structure, then the rgb conversion structure */
|
|
gst_structure_set_value (st, "format", &passthrough_formats);
|
|
gst_caps_append_structure_full (res, gst_structure_copy (st),
|
|
gst_caps_features_copy (f));
|
|
gst_structure_set_value (st, "format", &supported_rgb_formats);
|
|
}
|
|
g_value_unset (&passthrough_formats);
|
|
} else if (G_VALUE_HOLDS_STRING (format)) {
|
|
const gchar *format_str = g_value_get_string (format);
|
|
GstVideoFormat v_format = gst_video_format_from_string (format_str);
|
|
const GstVideoFormatInfo *t_info = gst_video_format_get_info (v_format);
|
|
if (GST_VIDEO_FORMAT_INFO_FLAGS (t_info) & (GST_VIDEO_FORMAT_FLAG_YUV |
|
|
GST_VIDEO_FORMAT_FLAG_GRAY)) {
|
|
/* add passthrough structure, then the rgb conversion structure */
|
|
gst_structure_set_value (st, "format", format);
|
|
gst_caps_append_structure_full (res, gst_structure_copy (st),
|
|
gst_caps_features_copy (f));
|
|
gst_structure_set_value (st, "format", &supported_rgb_formats);
|
|
} else { /* RGB */
|
|
gst_structure_set_value (st, "format", &supported_formats);
|
|
}
|
|
}
|
|
gst_structure_remove_fields (st, "colorimetry", "chroma-site",
|
|
"texture-target", NULL);
|
|
|
|
gst_caps_append_structure_full (res, st, gst_caps_features_copy (f));
|
|
}
|
|
|
|
g_value_unset (&supported_formats);
|
|
g_value_unset (&rgb_formats);
|
|
g_value_unset (&supported_rgb_formats);
|
|
|
|
return res;
|
|
}
|
|
|
|
/**
|
|
* gst_gl_color_convert_transform_caps:
|
|
* @context: a #GstGLContext to use for transforming @caps
|
|
* @direction: a #GstPadDirection
|
|
* @caps: (transfer none): the #GstCaps to transform
|
|
* @filter: (transfer none): a set of filter #GstCaps
|
|
*
|
|
* Provides an implementation of #GstBaseTransformClass.transform_caps()
|
|
*
|
|
* Returns: (transfer full): the converted #GstCaps
|
|
*
|
|
* Since: 1.6
|
|
*/
|
|
GstCaps *
|
|
gst_gl_color_convert_transform_caps (GstGLContext * context,
|
|
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
|
|
{
|
|
caps = gst_gl_color_convert_caps_transform_format_info (context,
|
|
direction == GST_PAD_SRC, caps);
|
|
|
|
if (filter) {
|
|
GstCaps *tmp;
|
|
|
|
tmp = gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
|
|
gst_caps_unref (caps);
|
|
caps = tmp;
|
|
}
|
|
|
|
return caps;
|
|
}
|
|
|
|
/* fixation from videoconvert */
|
|
#define SCORE_FORMAT_CHANGE 1
|
|
#define SCORE_DEPTH_CHANGE 1
|
|
#define SCORE_ALPHA_CHANGE 1
|
|
#define SCORE_CHROMA_W_CHANGE 1
|
|
#define SCORE_CHROMA_H_CHANGE 1
|
|
#define SCORE_PALETTE_CHANGE 1
|
|
|
|
#define SCORE_COLORSPACE_LOSS 2 /* RGB <-> YUV */
|
|
#define SCORE_DEPTH_LOSS 4 /* change bit depth */
|
|
#define SCORE_ALPHA_LOSS 8 /* lose the alpha channel */
|
|
#define SCORE_CHROMA_W_LOSS 16 /* vertical subsample */
|
|
#define SCORE_CHROMA_H_LOSS 32 /* horizontal subsample */
|
|
#define SCORE_PALETTE_LOSS 64 /* convert to palette format */
|
|
#define SCORE_COLOR_LOSS 128 /* convert to GRAY */
|
|
|
|
#define COLORSPACE_MASK (GST_VIDEO_FORMAT_FLAG_YUV | \
|
|
GST_VIDEO_FORMAT_FLAG_RGB | GST_VIDEO_FORMAT_FLAG_GRAY)
|
|
#define ALPHA_MASK (GST_VIDEO_FORMAT_FLAG_ALPHA)
|
|
#define PALETTE_MASK (GST_VIDEO_FORMAT_FLAG_PALETTE)
|
|
|
|
static GstGLTextureTarget
|
|
_texture_target_demask (guint target_mask)
|
|
{
|
|
if (target_mask & (1 << GST_GL_TEXTURE_TARGET_2D)) {
|
|
return GST_GL_TEXTURE_TARGET_2D;
|
|
}
|
|
if (target_mask & (1 << GST_GL_TEXTURE_TARGET_RECTANGLE)) {
|
|
return GST_GL_TEXTURE_TARGET_RECTANGLE;
|
|
}
|
|
if (target_mask & (1 << GST_GL_TEXTURE_TARGET_EXTERNAL_OES)) {
|
|
return GST_GL_TEXTURE_TARGET_EXTERNAL_OES;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* calculate how much loss a conversion would be */
|
|
static void
|
|
score_format_target (const GstVideoFormatInfo * in_info, guint targets_mask,
|
|
GstVideoFormat v_format, guint other_targets_mask, gint * min_loss,
|
|
const GstVideoFormatInfo ** out_info, GstGLTextureTarget * result)
|
|
{
|
|
const GstVideoFormatInfo *t_info;
|
|
GstVideoFormatFlags in_flags, t_flags;
|
|
gint loss;
|
|
|
|
t_info = gst_video_format_get_info (v_format);
|
|
if (!t_info)
|
|
return;
|
|
|
|
/* accept input format immediately without loss */
|
|
if (in_info == t_info && (targets_mask & other_targets_mask) != 0) {
|
|
*min_loss = 0;
|
|
*out_info = t_info;
|
|
*result = _texture_target_demask (targets_mask & other_targets_mask);
|
|
return;
|
|
}
|
|
|
|
/* can only passthrough external-oes textures */
|
|
other_targets_mask &= ~(1 << GST_GL_TEXTURE_TARGET_EXTERNAL_OES);
|
|
if (other_targets_mask == 0)
|
|
return;
|
|
/* try to keep the same target */
|
|
if (targets_mask & other_targets_mask)
|
|
other_targets_mask = targets_mask & other_targets_mask;
|
|
|
|
loss = SCORE_FORMAT_CHANGE;
|
|
|
|
in_flags = GST_VIDEO_FORMAT_INFO_FLAGS (in_info);
|
|
in_flags &= ~GST_VIDEO_FORMAT_FLAG_LE;
|
|
in_flags &= ~GST_VIDEO_FORMAT_FLAG_COMPLEX;
|
|
in_flags &= ~GST_VIDEO_FORMAT_FLAG_UNPACK;
|
|
|
|
t_flags = GST_VIDEO_FORMAT_INFO_FLAGS (t_info);
|
|
t_flags &= ~GST_VIDEO_FORMAT_FLAG_LE;
|
|
t_flags &= ~GST_VIDEO_FORMAT_FLAG_COMPLEX;
|
|
t_flags &= ~GST_VIDEO_FORMAT_FLAG_UNPACK;
|
|
|
|
/* GRAY/YUV -> GRAY/YUV is not supported */
|
|
if ((in_flags & (GST_VIDEO_FORMAT_FLAG_YUV | GST_VIDEO_FORMAT_FLAG_GRAY)) != 0
|
|
&& (t_flags & (GST_VIDEO_FORMAT_FLAG_YUV | GST_VIDEO_FORMAT_FLAG_GRAY)) !=
|
|
0)
|
|
return;
|
|
|
|
if ((t_flags & PALETTE_MASK) != (in_flags & PALETTE_MASK)) {
|
|
loss += SCORE_PALETTE_CHANGE;
|
|
if (t_flags & PALETTE_MASK)
|
|
loss += SCORE_PALETTE_LOSS;
|
|
}
|
|
|
|
if ((t_flags & COLORSPACE_MASK) != (in_flags & COLORSPACE_MASK)) {
|
|
loss += SCORE_COLORSPACE_LOSS;
|
|
if (t_flags & GST_VIDEO_FORMAT_FLAG_GRAY)
|
|
loss += SCORE_COLOR_LOSS;
|
|
}
|
|
|
|
if ((t_flags & ALPHA_MASK) != (in_flags & ALPHA_MASK)) {
|
|
loss += SCORE_ALPHA_CHANGE;
|
|
if (in_flags & ALPHA_MASK)
|
|
loss += SCORE_ALPHA_LOSS;
|
|
}
|
|
|
|
if ((in_info->h_sub[1]) != (t_info->h_sub[1])) {
|
|
loss += SCORE_CHROMA_H_CHANGE;
|
|
if ((in_info->h_sub[1]) < (t_info->h_sub[1]))
|
|
loss += SCORE_CHROMA_H_LOSS;
|
|
}
|
|
if ((in_info->w_sub[1]) != (t_info->w_sub[1])) {
|
|
loss += SCORE_CHROMA_W_CHANGE;
|
|
if ((in_info->w_sub[1]) < (t_info->w_sub[1]))
|
|
loss += SCORE_CHROMA_W_LOSS;
|
|
}
|
|
|
|
if ((in_info->bits) != (t_info->bits)) {
|
|
loss += SCORE_DEPTH_CHANGE;
|
|
if ((in_info->bits) > (t_info->bits))
|
|
loss += SCORE_DEPTH_LOSS;
|
|
}
|
|
|
|
if (loss < *min_loss) {
|
|
GstGLTextureTarget target = _texture_target_demask (other_targets_mask);
|
|
|
|
if (target != 0) {
|
|
*out_info = t_info;
|
|
*min_loss = loss;
|
|
*result = target;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_gl_color_convert_fixate_format_target (GstCaps * caps, GstCaps * result)
|
|
{
|
|
GstStructure *ins, *outs;
|
|
const gchar *in_format;
|
|
const GstVideoFormatInfo *in_info, *out_info = NULL;
|
|
const GValue *targets;
|
|
guint targets_mask = 0;
|
|
GstGLTextureTarget target;
|
|
gint min_loss = G_MAXINT;
|
|
guint i, capslen;
|
|
|
|
ins = gst_caps_get_structure (caps, 0);
|
|
in_format = gst_structure_get_string (ins, "format");
|
|
if (!in_format)
|
|
return;
|
|
targets = gst_structure_get_value (ins, "texture-target");
|
|
targets_mask = gst_gl_value_get_texture_target_mask (targets);
|
|
if (!targets_mask)
|
|
return;
|
|
|
|
in_info =
|
|
gst_video_format_get_info (gst_video_format_from_string (in_format));
|
|
if (!in_info)
|
|
return;
|
|
|
|
outs = gst_caps_get_structure (result, 0);
|
|
|
|
capslen = gst_caps_get_size (result);
|
|
for (i = 0; i < capslen; i++) {
|
|
GstStructure *tests;
|
|
const GValue *format;
|
|
const GValue *other_targets;
|
|
guint other_targets_mask = 0;
|
|
|
|
tests = gst_caps_get_structure (result, i);
|
|
|
|
format = gst_structure_get_value (tests, "format");
|
|
other_targets = gst_structure_get_value (tests, "texture-target");
|
|
/* should not happen */
|
|
if (format == NULL || other_targets == NULL)
|
|
continue;
|
|
|
|
other_targets_mask = gst_gl_value_get_texture_target_mask (other_targets);
|
|
|
|
if (GST_VALUE_HOLDS_LIST (format)) {
|
|
gint j, len;
|
|
|
|
len = gst_value_list_get_size (format);
|
|
for (j = 0; j < len; j++) {
|
|
const GValue *val;
|
|
|
|
val = gst_value_list_get_value (format, j);
|
|
if (G_VALUE_HOLDS_STRING (val)) {
|
|
const gchar *format_str = g_value_get_string (val);
|
|
GstVideoFormat v_format = gst_video_format_from_string (format_str);
|
|
score_format_target (in_info, targets_mask, v_format,
|
|
other_targets_mask, &min_loss, &out_info, &target);
|
|
if (min_loss == 0)
|
|
break;
|
|
}
|
|
}
|
|
} else if (G_VALUE_HOLDS_STRING (format)) {
|
|
const gchar *format_str = g_value_get_string (format);
|
|
GstVideoFormat v_format = gst_video_format_from_string (format_str);
|
|
score_format_target (in_info, targets_mask, v_format, other_targets_mask,
|
|
&min_loss, &out_info, &target);
|
|
}
|
|
}
|
|
if (out_info)
|
|
gst_structure_set (outs, "format", G_TYPE_STRING,
|
|
GST_VIDEO_FORMAT_INFO_NAME (out_info), NULL);
|
|
if (target)
|
|
gst_structure_set (outs, "texture-target", G_TYPE_STRING,
|
|
gst_gl_texture_target_to_string (target), NULL);
|
|
}
|
|
|
|
/**
|
|
* gst_gl_color_convert_fixate_caps:
|
|
* @context: a #GstGLContext to use for transforming @caps
|
|
* @direction: a #GstPadDirection
|
|
* @caps: (transfer none): the #GstCaps of @direction
|
|
* @other: (transfer full): the #GstCaps to fixate
|
|
*
|
|
* Provides an implementation of #GstBaseTransformClass.fixate_caps()
|
|
*
|
|
* Returns: (transfer full): the fixated #GstCaps
|
|
*
|
|
* Since: 1.8
|
|
*/
|
|
GstCaps *
|
|
gst_gl_color_convert_fixate_caps (GstGLContext * context,
|
|
GstPadDirection direction, GstCaps * caps, GstCaps * other)
|
|
{
|
|
GstCaps *result;
|
|
|
|
result = gst_caps_intersect (other, caps);
|
|
if (gst_caps_is_empty (result)) {
|
|
gst_caps_unref (result);
|
|
result = other;
|
|
} else {
|
|
gst_caps_unref (other);
|
|
}
|
|
|
|
result = gst_caps_make_writable (result);
|
|
gst_gl_color_convert_fixate_format_target (caps, result);
|
|
|
|
result = gst_caps_fixate (result);
|
|
|
|
if (direction == GST_PAD_SINK) {
|
|
if (gst_caps_is_subset (caps, result)) {
|
|
gst_caps_replace (&result, caps);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* gst_gl_color_convert_perform:
|
|
* @convert: a #GstGLColorConvert
|
|
* @inbuf: (transfer none): the #GstGLMemory filled #GstBuffer to convert
|
|
*
|
|
* Converts the data contained by @inbuf using the formats specified by the
|
|
* #GstCaps passed to gst_gl_color_convert_set_caps()
|
|
*
|
|
* Returns: (transfer full): a converted #GstBuffer or %NULL
|
|
*
|
|
* Since: 1.4
|
|
*/
|
|
GstBuffer *
|
|
gst_gl_color_convert_perform (GstGLColorConvert * convert, GstBuffer * inbuf)
|
|
{
|
|
GstBuffer *ret;
|
|
|
|
g_return_val_if_fail (convert != NULL, FALSE);
|
|
|
|
GST_OBJECT_LOCK (convert);
|
|
ret = _gst_gl_color_convert_perform_unlocked (convert, inbuf);
|
|
GST_OBJECT_UNLOCK (convert);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstBuffer *
|
|
_gst_gl_color_convert_perform_unlocked (GstGLColorConvert * convert,
|
|
GstBuffer * inbuf)
|
|
{
|
|
g_return_val_if_fail (convert != NULL, FALSE);
|
|
g_return_val_if_fail (inbuf, FALSE);
|
|
|
|
if (G_UNLIKELY (convert->passthrough))
|
|
return gst_buffer_ref (inbuf);
|
|
|
|
convert->inbuf = inbuf;
|
|
|
|
gst_gl_context_thread_add (convert->context,
|
|
(GstGLContextThreadFunc) _do_convert, convert);
|
|
|
|
if (!convert->priv->result) {
|
|
if (convert->outbuf)
|
|
gst_buffer_unref (convert->outbuf);
|
|
convert->outbuf = NULL;
|
|
return NULL;
|
|
}
|
|
|
|
return convert->outbuf;
|
|
}
|
|
|
|
static inline gboolean
|
|
_is_RGBx (GstVideoFormat v_format)
|
|
{
|
|
switch (v_format) {
|
|
case GST_VIDEO_FORMAT_RGBx:
|
|
case GST_VIDEO_FORMAT_xRGB:
|
|
case GST_VIDEO_FORMAT_BGRx:
|
|
case GST_VIDEO_FORMAT_xBGR:
|
|
return TRUE;
|
|
default:
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static inline gchar
|
|
_index_to_shader_swizzle (int idx)
|
|
{
|
|
switch (idx) {
|
|
case 0:
|
|
return 'r';
|
|
case 1:
|
|
return 'g';
|
|
case 2:
|
|
return 'b';
|
|
case 3:
|
|
return 'a';
|
|
default:
|
|
return '#';
|
|
}
|
|
}
|
|
|
|
/* attempts to transform expected to want using swizzling */
|
|
static gchar *
|
|
_RGB_pixel_order (const gchar * expected, const gchar * wanted)
|
|
{
|
|
GString *ret = g_string_sized_new (4);
|
|
gchar *expect, *want;
|
|
gchar *orig_want;
|
|
int len;
|
|
gboolean discard_output = TRUE;
|
|
|
|
if (g_ascii_strcasecmp (expected, wanted) == 0) {
|
|
g_string_free (ret, TRUE);
|
|
return g_ascii_strdown (expected, -1);
|
|
}
|
|
|
|
expect = g_ascii_strdown (expected, -1);
|
|
orig_want = want = g_ascii_strdown (wanted, -1);
|
|
|
|
if (strcmp (expect, "rgb16") == 0 || strcmp (expect, "bgr16") == 0) {
|
|
gchar *temp = expect;
|
|
expect = g_strndup (temp, 3);
|
|
g_free (temp);
|
|
}
|
|
|
|
if (strcmp (want, "rgb16") == 0 || strcmp (want, "bgr16") == 0) {
|
|
gchar *temp = want;
|
|
orig_want = want = g_strndup (temp, 3);
|
|
g_free (temp);
|
|
}
|
|
|
|
/* pad want with 'a's */
|
|
if ((len = strlen (want)) < 4) {
|
|
gchar *new_want = g_strndup (want, 4);
|
|
while (len < 4) {
|
|
new_want[len] = 'a';
|
|
len++;
|
|
}
|
|
g_free (want);
|
|
orig_want = want = new_want;
|
|
}
|
|
|
|
/* pad expect with 'a's */
|
|
if ((len = strlen (expect)) < 4) {
|
|
gchar *new_expect = g_strndup (expect, 4);
|
|
while (len < 4) {
|
|
new_expect[len] = 'a';
|
|
len++;
|
|
}
|
|
g_free (expect);
|
|
expect = new_expect;
|
|
}
|
|
|
|
/* build the swizzle format */
|
|
while (want && want[0] != '\0') {
|
|
gchar *val;
|
|
gint idx;
|
|
gchar needle = want[0];
|
|
|
|
if (needle == 'x')
|
|
needle = 'a';
|
|
|
|
if (!(val = strchr (expect, needle))
|
|
&& needle == 'a' && !(val = strchr (expect, 'x')))
|
|
goto out;
|
|
|
|
idx = (gint) (val - expect);
|
|
|
|
ret = g_string_append_c (ret, _index_to_shader_swizzle (idx));
|
|
want = &want[1];
|
|
}
|
|
|
|
discard_output = FALSE;
|
|
out:
|
|
g_free (orig_want);
|
|
g_free (expect);
|
|
|
|
return g_string_free (ret, discard_output);
|
|
}
|
|
|
|
static guint
|
|
_get_n_textures (GstVideoFormat v_format)
|
|
{
|
|
switch (v_format) {
|
|
case GST_VIDEO_FORMAT_RGBA:
|
|
case GST_VIDEO_FORMAT_RGBx:
|
|
case GST_VIDEO_FORMAT_ARGB:
|
|
case GST_VIDEO_FORMAT_xRGB:
|
|
case GST_VIDEO_FORMAT_BGRA:
|
|
case GST_VIDEO_FORMAT_BGRx:
|
|
case GST_VIDEO_FORMAT_ABGR:
|
|
case GST_VIDEO_FORMAT_xBGR:
|
|
case GST_VIDEO_FORMAT_RGB:
|
|
case GST_VIDEO_FORMAT_BGR:
|
|
case GST_VIDEO_FORMAT_AYUV:
|
|
case GST_VIDEO_FORMAT_VUYA:
|
|
case GST_VIDEO_FORMAT_GRAY8:
|
|
case GST_VIDEO_FORMAT_GRAY16_LE:
|
|
case GST_VIDEO_FORMAT_GRAY16_BE:
|
|
case GST_VIDEO_FORMAT_YUY2:
|
|
case GST_VIDEO_FORMAT_UYVY:
|
|
case GST_VIDEO_FORMAT_RGB16:
|
|
case GST_VIDEO_FORMAT_BGR16:
|
|
case GST_VIDEO_FORMAT_ARGB64:
|
|
return 1;
|
|
case GST_VIDEO_FORMAT_NV12:
|
|
case GST_VIDEO_FORMAT_NV21:
|
|
return 2;
|
|
case GST_VIDEO_FORMAT_I420:
|
|
case GST_VIDEO_FORMAT_Y444:
|
|
case GST_VIDEO_FORMAT_Y42B:
|
|
case GST_VIDEO_FORMAT_Y41B:
|
|
case GST_VIDEO_FORMAT_YV12:
|
|
return 3;
|
|
default:
|
|
g_assert_not_reached ();
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static void
|
|
_RGB_to_RGB (GstGLColorConvert * convert)
|
|
{
|
|
struct ConvertInfo *info = &convert->priv->convert_info;
|
|
GstVideoFormat in_format = GST_VIDEO_INFO_FORMAT (&convert->in_info);
|
|
const gchar *in_format_str = gst_video_format_to_string (in_format);
|
|
GstVideoFormat out_format = GST_VIDEO_INFO_FORMAT (&convert->out_info);
|
|
const gchar *out_format_str = gst_video_format_to_string (out_format);
|
|
gchar *pixel_order = _RGB_pixel_order (in_format_str, out_format_str);
|
|
gchar *alpha = NULL;
|
|
|
|
if (_is_RGBx (in_format)) {
|
|
int i;
|
|
char input_alpha_channel = 'a';
|
|
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
|
|
if (in_format_str[i] == 'X' || in_format_str[i] == 'x') {
|
|
input_alpha_channel = _index_to_shader_swizzle (i);
|
|
break;
|
|
}
|
|
}
|
|
alpha = g_strdup_printf ("t.%c = 1.0;", input_alpha_channel);
|
|
}
|
|
info->templ = &templ_REORDER;
|
|
info->frag_body = g_strdup_printf (templ_REORDER_BODY, alpha ? alpha : "",
|
|
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3]);
|
|
info->shader_tex_names[0] = "tex";
|
|
|
|
g_free (alpha);
|
|
g_free (pixel_order);
|
|
}
|
|
|
|
static void
|
|
_YUV_to_RGB (GstGLColorConvert * convert)
|
|
{
|
|
struct ConvertInfo *info = &convert->priv->convert_info;
|
|
GstVideoFormat out_format = GST_VIDEO_INFO_FORMAT (&convert->out_info);
|
|
const gchar *out_format_str = gst_video_format_to_string (out_format);
|
|
gchar *pixel_order = _RGB_pixel_order ("rgba", out_format_str);
|
|
gboolean apple_ycbcr = gst_gl_context_check_feature (convert->context,
|
|
"GL_APPLE_ycbcr_422");
|
|
gboolean in_tex_rectangular = FALSE;
|
|
|
|
#if GST_GL_HAVE_OPENGL
|
|
GstMemory *memory = gst_buffer_peek_memory (convert->inbuf, 0);
|
|
if (gst_is_gl_memory (memory) && (USING_OPENGL (convert->context)
|
|
|| USING_OPENGL3 (convert->context))) {
|
|
in_tex_rectangular =
|
|
convert->priv->from_texture_target == GST_GL_TEXTURE_TARGET_RECTANGLE;
|
|
}
|
|
#endif
|
|
|
|
info->out_n_textures = 1;
|
|
|
|
if (in_tex_rectangular && apple_ycbcr
|
|
&& gst_buffer_n_memory (convert->inbuf) == 1) {
|
|
/* FIXME: We should probably also check if tex_target actually is using
|
|
* the Apple YCbCr422 extension. It could also be a normal UYVY texture
|
|
* with RB or Lum/Alpha
|
|
*/
|
|
/* The mangling will change this to the correct texture2DRect, sampler2DRect
|
|
* for us */
|
|
info->templ = &templ_REORDER;
|
|
info->frag_body =
|
|
g_strdup_printf (templ_REORDER_BODY, "", pixel_order[0], pixel_order[1],
|
|
pixel_order[2], pixel_order[3]);
|
|
info->shader_tex_names[0] = "tex";
|
|
} else {
|
|
switch (GST_VIDEO_INFO_FORMAT (&convert->in_info)) {
|
|
case GST_VIDEO_FORMAT_AYUV:
|
|
info->templ = &templ_AYUV_to_RGB;
|
|
info->frag_body = g_strdup_printf (templ_AYUV_to_RGB_BODY,
|
|
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3]);
|
|
info->shader_tex_names[0] = "tex";
|
|
break;
|
|
case GST_VIDEO_FORMAT_VUYA:
|
|
info->templ = &templ_VUYA_to_RGB;
|
|
info->frag_body = g_strdup_printf (templ_VUYA_to_RGB_BODY,
|
|
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3]);
|
|
info->shader_tex_names[0] = "tex";
|
|
break;
|
|
case GST_VIDEO_FORMAT_I420:
|
|
case GST_VIDEO_FORMAT_Y444:
|
|
case GST_VIDEO_FORMAT_Y42B:
|
|
case GST_VIDEO_FORMAT_Y41B:
|
|
info->templ = &templ_PLANAR_YUV_to_RGB;
|
|
info->frag_body =
|
|
g_strdup_printf (templ_PLANAR_YUV_to_RGB_BODY, pixel_order[0],
|
|
pixel_order[1], pixel_order[2], pixel_order[3]);
|
|
info->shader_tex_names[0] = "Ytex";
|
|
info->shader_tex_names[1] = "Utex";
|
|
info->shader_tex_names[2] = "Vtex";
|
|
break;
|
|
case GST_VIDEO_FORMAT_YV12:
|
|
info->templ = &templ_PLANAR_YUV_to_RGB;
|
|
info->frag_body =
|
|
g_strdup_printf (templ_PLANAR_YUV_to_RGB_BODY, pixel_order[0],
|
|
pixel_order[1], pixel_order[2], pixel_order[3]);
|
|
info->shader_tex_names[0] = "Ytex";
|
|
info->shader_tex_names[1] = "Vtex";
|
|
info->shader_tex_names[2] = "Utex";
|
|
break;
|
|
case GST_VIDEO_FORMAT_YUY2:
|
|
{
|
|
char uv_val = convert->priv->in_tex_formats[0] == GST_GL_RG ? 'g' : 'a';
|
|
info->templ = &templ_YUY2_UYVY_to_RGB;
|
|
info->frag_body =
|
|
g_strdup_printf (templ_YUY2_UYVY_to_RGB_BODY, 'r', uv_val, uv_val,
|
|
'g', 'a', pixel_order[0], pixel_order[1], pixel_order[2],
|
|
pixel_order[3]);
|
|
info->shader_tex_names[0] = "Ytex";
|
|
break;
|
|
}
|
|
case GST_VIDEO_FORMAT_UYVY:
|
|
{
|
|
char y_val = convert->priv->in_tex_formats[0] == GST_GL_RG ? 'g' : 'a';
|
|
info->templ = &templ_YUY2_UYVY_to_RGB;
|
|
info->frag_body =
|
|
g_strdup_printf (templ_YUY2_UYVY_to_RGB_BODY, y_val, 'g', 'g', 'r',
|
|
'b', pixel_order[0], pixel_order[1], pixel_order[2],
|
|
pixel_order[3]);
|
|
info->shader_tex_names[0] = "Ytex";
|
|
break;
|
|
}
|
|
case GST_VIDEO_FORMAT_NV12:
|
|
{
|
|
char val2 = convert->priv->in_tex_formats[1] == GST_GL_RG ? 'g' : 'a';
|
|
info->templ = &templ_NV12_NV21_to_RGB;
|
|
info->frag_body =
|
|
g_strdup_printf (templ_NV12_NV21_to_RGB_BODY, 'r', val2,
|
|
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3]);
|
|
info->shader_tex_names[0] = "Ytex";
|
|
info->shader_tex_names[1] = "UVtex";
|
|
break;
|
|
}
|
|
case GST_VIDEO_FORMAT_NV21:
|
|
{
|
|
char val2 = convert->priv->in_tex_formats[1] == GST_GL_RG ? 'g' : 'a';
|
|
info->templ = &templ_NV12_NV21_to_RGB;
|
|
info->frag_body =
|
|
g_strdup_printf (templ_NV12_NV21_to_RGB_BODY, val2, 'r',
|
|
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3]);
|
|
info->shader_tex_names[0] = "Ytex";
|
|
info->shader_tex_names[1] = "UVtex";
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (gst_video_colorimetry_matches (&convert->in_info.colorimetry,
|
|
GST_VIDEO_COLORIMETRY_BT709)) {
|
|
info->cms_offset = (gfloat *) from_yuv_bt709_offset;
|
|
info->cms_coeff1 = (gfloat *) from_yuv_bt709_rcoeff;
|
|
info->cms_coeff2 = (gfloat *) from_yuv_bt709_gcoeff;
|
|
info->cms_coeff3 = (gfloat *) from_yuv_bt709_bcoeff;
|
|
} else {
|
|
/* defaults/bt601 */
|
|
info->cms_offset = (gfloat *) from_yuv_bt601_offset;
|
|
info->cms_coeff1 = (gfloat *) from_yuv_bt601_rcoeff;
|
|
info->cms_coeff2 = (gfloat *) from_yuv_bt601_gcoeff;
|
|
info->cms_coeff3 = (gfloat *) from_yuv_bt601_bcoeff;
|
|
}
|
|
|
|
g_free (pixel_order);
|
|
}
|
|
|
|
static void
|
|
_RGB_to_YUV (GstGLColorConvert * convert)
|
|
{
|
|
struct ConvertInfo *info = &convert->priv->convert_info;
|
|
GstVideoFormat in_format = GST_VIDEO_INFO_FORMAT (&convert->in_info);
|
|
const gchar *in_format_str = gst_video_format_to_string (in_format);
|
|
GstVideoFormat out_format = GST_VIDEO_INFO_FORMAT (&convert->out_info);
|
|
gchar *pixel_order = _RGB_pixel_order (in_format_str, "rgba");
|
|
const gchar *alpha;
|
|
|
|
info->frag_prog = NULL;
|
|
|
|
info->shader_tex_names[0] = "tex";
|
|
|
|
switch (out_format) {
|
|
case GST_VIDEO_FORMAT_AYUV:
|
|
alpha = _is_RGBx (in_format) ? "1.0" : "texel.a";
|
|
info->templ = &templ_RGB_to_AYUV;
|
|
info->frag_body = g_strdup_printf (templ_RGB_to_AYUV_BODY, pixel_order[0],
|
|
pixel_order[1], pixel_order[2], pixel_order[3], alpha);
|
|
info->out_n_textures = 1;
|
|
break;
|
|
case GST_VIDEO_FORMAT_VUYA:
|
|
alpha = _is_RGBx (in_format) ? "1.0" : "texel.a";
|
|
info->templ = &templ_RGB_to_VUYA;
|
|
info->frag_body = g_strdup_printf (templ_RGB_to_VUYA_BODY, pixel_order[0],
|
|
pixel_order[1], pixel_order[2], pixel_order[3], alpha);
|
|
info->out_n_textures = 1;
|
|
break;
|
|
case GST_VIDEO_FORMAT_I420:
|
|
case GST_VIDEO_FORMAT_YV12:
|
|
case GST_VIDEO_FORMAT_Y444:
|
|
case GST_VIDEO_FORMAT_Y42B:
|
|
case GST_VIDEO_FORMAT_Y41B:
|
|
info->templ = &templ_RGB_to_PLANAR_YUV;
|
|
info->frag_body = g_strdup_printf (templ_RGB_to_PLANAR_YUV_BODY,
|
|
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3],
|
|
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3]);
|
|
info->out_n_textures = 3;
|
|
if (out_format == GST_VIDEO_FORMAT_Y444) {
|
|
info->chroma_sampling[0] = info->chroma_sampling[1] = 1.0f;
|
|
} else if (out_format == GST_VIDEO_FORMAT_Y42B) {
|
|
info->chroma_sampling[0] = 2.0f;
|
|
info->chroma_sampling[1] = 1.0f;
|
|
} else if (out_format == GST_VIDEO_FORMAT_Y41B) {
|
|
info->chroma_sampling[0] = 4.0f;
|
|
info->chroma_sampling[1] = 1.0f;
|
|
} else {
|
|
info->chroma_sampling[0] = info->chroma_sampling[1] = 2.0f;
|
|
}
|
|
break;
|
|
case GST_VIDEO_FORMAT_YUY2:
|
|
info->templ = &templ_RGB_to_YUY2_UYVY;
|
|
info->frag_body = g_strdup_printf (templ_RGB_to_YUY2_UYVY_BODY,
|
|
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3],
|
|
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3],
|
|
'x', 'y', 'x', 'z');
|
|
info->out_n_textures = 1;
|
|
break;
|
|
case GST_VIDEO_FORMAT_UYVY:
|
|
info->templ = &templ_RGB_to_YUY2_UYVY,
|
|
info->frag_body = g_strdup_printf (templ_RGB_to_YUY2_UYVY_BODY,
|
|
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3],
|
|
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3],
|
|
'y', 'x', 'z', 'x');
|
|
info->out_n_textures = 1;
|
|
break;
|
|
case GST_VIDEO_FORMAT_NV12:
|
|
info->templ = &templ_RGB_to_NV12_NV21,
|
|
info->frag_body = g_strdup_printf (templ_RGB_to_NV12_NV21_BODY,
|
|
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3],
|
|
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3],
|
|
'y', 'z');
|
|
info->out_n_textures = 2;
|
|
break;
|
|
case GST_VIDEO_FORMAT_NV21:
|
|
info->templ = &templ_RGB_to_NV12_NV21,
|
|
info->frag_body = g_strdup_printf (templ_RGB_to_NV12_NV21_BODY,
|
|
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3],
|
|
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3],
|
|
'z', 'y');
|
|
info->out_n_textures = 2;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (gst_video_colorimetry_matches (&convert->in_info.colorimetry,
|
|
GST_VIDEO_COLORIMETRY_BT709)) {
|
|
info->cms_offset = (gfloat *) from_rgb_bt709_offset;
|
|
info->cms_coeff1 = (gfloat *) from_rgb_bt709_ycoeff;
|
|
info->cms_coeff2 = (gfloat *) from_rgb_bt709_ucoeff;
|
|
info->cms_coeff3 = (gfloat *) from_rgb_bt709_vcoeff;
|
|
} else {
|
|
/* defaults/bt601 */
|
|
info->cms_offset = (gfloat *) from_rgb_bt601_offset;
|
|
info->cms_coeff1 = (gfloat *) from_rgb_bt601_ycoeff;
|
|
info->cms_coeff2 = (gfloat *) from_rgb_bt601_ucoeff;
|
|
info->cms_coeff3 = (gfloat *) from_rgb_bt601_vcoeff;
|
|
}
|
|
|
|
g_free (pixel_order);
|
|
}
|
|
|
|
static void
|
|
_RGB_to_GRAY (GstGLColorConvert * convert)
|
|
{
|
|
struct ConvertInfo *info = &convert->priv->convert_info;
|
|
GstVideoFormat in_format = GST_VIDEO_INFO_FORMAT (&convert->in_info);
|
|
const gchar *in_format_str = gst_video_format_to_string (in_format);
|
|
gchar *pixel_order = _RGB_pixel_order (in_format_str, "rgba");
|
|
gchar *alpha = NULL;
|
|
|
|
info->out_n_textures = 1;
|
|
info->shader_tex_names[0] = "tex";
|
|
|
|
if (_is_RGBx (in_format))
|
|
alpha = g_strdup_printf ("t.%c = 1.0;", pixel_order[3]);
|
|
|
|
switch (GST_VIDEO_INFO_FORMAT (&convert->out_info)) {
|
|
case GST_VIDEO_FORMAT_GRAY8:
|
|
info->templ = &templ_REORDER;
|
|
info->frag_body = g_strdup_printf (templ_REORDER_BODY, alpha ? alpha : "",
|
|
pixel_order[0], pixel_order[0], pixel_order[0], pixel_order[3]);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
g_free (alpha);
|
|
g_free (pixel_order);
|
|
}
|
|
|
|
static void
|
|
_GRAY_to_RGB (GstGLColorConvert * convert)
|
|
{
|
|
struct ConvertInfo *info = &convert->priv->convert_info;
|
|
GstVideoFormat out_format = GST_VIDEO_INFO_FORMAT (&convert->out_info);
|
|
const gchar *out_format_str = gst_video_format_to_string (out_format);
|
|
gchar *pixel_order = _RGB_pixel_order ("rgba", out_format_str);
|
|
|
|
info->shader_tex_names[0] = "tex";
|
|
|
|
switch (GST_VIDEO_INFO_FORMAT (&convert->in_info)) {
|
|
case GST_VIDEO_FORMAT_GRAY8:
|
|
info->templ = &templ_REORDER;
|
|
info->frag_body = g_strdup_printf (templ_REORDER_BODY, "", pixel_order[0],
|
|
pixel_order[0], pixel_order[0], pixel_order[3]);
|
|
break;
|
|
case GST_VIDEO_FORMAT_GRAY16_LE:
|
|
{
|
|
char val2 = convert->priv->in_tex_formats[0] == GST_GL_RG ? 'g' : 'a';
|
|
info->templ = &templ_COMPOSE;
|
|
info->frag_body = g_strdup_printf (templ_COMPOSE_BODY, val2, 'r',
|
|
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3]);
|
|
break;
|
|
}
|
|
case GST_VIDEO_FORMAT_GRAY16_BE:
|
|
{
|
|
char val2 = convert->priv->in_tex_formats[0] == GST_GL_RG ? 'g' : 'a';
|
|
info->templ = &templ_COMPOSE;
|
|
info->frag_body = g_strdup_printf (templ_COMPOSE_BODY, 'r', val2,
|
|
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3]);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
g_free (pixel_order);
|
|
}
|
|
|
|
static void
|
|
_bind_buffer (GstGLColorConvert * convert)
|
|
{
|
|
const GstGLFuncs *gl = convert->context->gl_vtable;
|
|
|
|
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, convert->priv->vbo_indices);
|
|
gl->BindBuffer (GL_ARRAY_BUFFER, convert->priv->vertex_buffer);
|
|
|
|
/* Load the vertex position */
|
|
gl->VertexAttribPointer (convert->priv->attr_position, 3, GL_FLOAT, GL_FALSE,
|
|
5 * sizeof (GLfloat), (void *) 0);
|
|
|
|
/* Load the texture coordinate */
|
|
gl->VertexAttribPointer (convert->priv->attr_texture, 2, GL_FLOAT, GL_FALSE,
|
|
5 * sizeof (GLfloat), (void *) (3 * sizeof (GLfloat)));
|
|
|
|
gl->EnableVertexAttribArray (convert->priv->attr_position);
|
|
gl->EnableVertexAttribArray (convert->priv->attr_texture);
|
|
}
|
|
|
|
static void
|
|
_unbind_buffer (GstGLColorConvert * convert)
|
|
{
|
|
const GstGLFuncs *gl = convert->context->gl_vtable;
|
|
|
|
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
|
|
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
|
|
|
|
gl->DisableVertexAttribArray (convert->priv->attr_position);
|
|
gl->DisableVertexAttribArray (convert->priv->attr_texture);
|
|
}
|
|
|
|
static GstGLShader *
|
|
_create_shader (GstGLColorConvert * convert)
|
|
{
|
|
struct ConvertInfo *info = &convert->priv->convert_info;
|
|
GString *str = g_string_new (NULL);
|
|
GstGLShader *ret = NULL;
|
|
GstGLSLStage *stage;
|
|
GstGLSLVersion version;
|
|
GstGLSLProfile profile;
|
|
gchar *version_str, *tmp, *tmp1;
|
|
const gchar *strings[3];
|
|
GError *error = NULL;
|
|
int i;
|
|
|
|
ret = gst_gl_shader_new (convert->context);
|
|
|
|
tmp =
|
|
_gst_glsl_mangle_shader (text_vertex_shader, GL_VERTEX_SHADER,
|
|
info->templ->target, convert->priv->from_texture_target, convert->context,
|
|
&version, &profile);
|
|
|
|
tmp1 = gst_glsl_version_profile_to_string (version, profile);
|
|
version_str = g_strdup_printf ("#version %s\n", tmp1);
|
|
g_free (tmp1);
|
|
|
|
strings[0] = version_str;
|
|
strings[1] = tmp;
|
|
if (!(stage = gst_glsl_stage_new_with_strings (convert->context,
|
|
GL_VERTEX_SHADER, version, profile, 2, strings))) {
|
|
GST_ERROR_OBJECT (convert, "Failed to create vertex stage");
|
|
g_free (version_str);
|
|
g_free (tmp);
|
|
gst_object_unref (ret);
|
|
return NULL;
|
|
}
|
|
g_free (tmp);
|
|
|
|
if (!gst_gl_shader_compile_attach_stage (ret, stage, &error)) {
|
|
GST_ERROR_OBJECT (convert, "Failed to compile vertex shader %s",
|
|
error->message);
|
|
g_clear_error (&error);
|
|
g_free (version_str);
|
|
gst_object_unref (stage);
|
|
gst_object_unref (ret);
|
|
return NULL;
|
|
}
|
|
|
|
if (info->templ->extensions)
|
|
g_string_append (str, info->templ->extensions);
|
|
|
|
if (convert->priv->from_texture_target == GST_GL_TEXTURE_TARGET_EXTERNAL_OES
|
|
&& info->templ->target != GST_GL_TEXTURE_TARGET_EXTERNAL_OES)
|
|
g_string_append (str, glsl_OES_extension_string);
|
|
|
|
if (info->templ->uniforms)
|
|
g_string_append (str, info->templ->uniforms);
|
|
|
|
g_string_append_c (str, '\n');
|
|
|
|
/* GL 3.3+ and GL ES 3.x */
|
|
if ((profile == GST_GLSL_PROFILE_CORE && version >= GST_GLSL_VERSION_330)
|
|
|| (profile == GST_GLSL_PROFILE_ES && version >= GST_GLSL_VERSION_300)) {
|
|
if (info->out_n_textures > 1) {
|
|
gint i;
|
|
|
|
for (i = 0; i < info->out_n_textures; i++) {
|
|
g_string_append_printf (str,
|
|
"layout(location = %d) out vec4 fragColor_%d;\n", i, i);
|
|
}
|
|
} else {
|
|
g_string_append (str, "layout (location = 0) out vec4 fragColor;\n");
|
|
}
|
|
} else if (profile == GST_GLSL_PROFILE_CORE
|
|
&& version >= GST_GLSL_VERSION_150) {
|
|
/* no layout specifiers, use glBindFragDataLocation instead */
|
|
if (info->out_n_textures > 1) {
|
|
gint i;
|
|
|
|
for (i = 0; i < info->out_n_textures; i++) {
|
|
gchar *var_name = g_strdup_printf ("fragColor_%d", i);
|
|
g_string_append_printf (str, "out vec4 %s;\n", var_name);
|
|
gst_gl_shader_bind_frag_data_location (ret, i, var_name);
|
|
g_free (var_name);
|
|
}
|
|
} else {
|
|
g_string_append (str, "out vec4 fragColor;\n");
|
|
gst_gl_shader_bind_frag_data_location (ret, 0, "fragColor");
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < MAX_FUNCTIONS; i++) {
|
|
if (info->templ->functions[i] == NULL)
|
|
break;
|
|
|
|
g_string_append_c (str, '\n');
|
|
g_string_append (str, info->templ->functions[i]);
|
|
g_string_append_c (str, '\n');
|
|
}
|
|
|
|
{
|
|
const gchar *varying = NULL;
|
|
|
|
if ((profile == GST_GLSL_PROFILE_ES && version >= GST_GLSL_VERSION_300)
|
|
|| (profile == GST_GLSL_PROFILE_CORE
|
|
&& version >= GST_GLSL_VERSION_150)) {
|
|
varying = "in";
|
|
} else {
|
|
varying = "varying";
|
|
}
|
|
g_string_append_printf (str, "\n%s vec2 v_texcoord;\nvoid main (void) {\n",
|
|
varying);
|
|
}
|
|
if (info->frag_body) {
|
|
g_string_append (str, "vec2 texcoord;\n");
|
|
if (convert->priv->from_texture_target == GST_GL_TEXTURE_TARGET_RECTANGLE
|
|
&& info->templ->target != GST_GL_TEXTURE_TARGET_RECTANGLE) {
|
|
g_string_append (str, "texcoord = v_texcoord * vec2 (width, height);\n");
|
|
} else {
|
|
g_string_append (str, "texcoord = v_texcoord;\n");
|
|
}
|
|
|
|
g_string_append (str, info->frag_body);
|
|
}
|
|
g_string_append (str, "\n}");
|
|
tmp = g_string_free (str, FALSE);
|
|
info->frag_prog = _gst_glsl_mangle_shader (tmp, GL_FRAGMENT_SHADER,
|
|
info->templ->target, convert->priv->from_texture_target, convert->context,
|
|
&version, &profile);
|
|
g_free (tmp);
|
|
|
|
strings[1] =
|
|
gst_gl_shader_string_get_highest_precision (convert->context, version,
|
|
profile);
|
|
strings[2] = info->frag_prog;
|
|
if (!(stage = gst_glsl_stage_new_with_strings (convert->context,
|
|
GL_FRAGMENT_SHADER, version, profile, 3, strings))) {
|
|
GST_ERROR_OBJECT (convert, "Failed to create fragment stage");
|
|
g_free (info->frag_prog);
|
|
info->frag_prog = NULL;
|
|
g_free (version_str);
|
|
gst_object_unref (ret);
|
|
return NULL;
|
|
}
|
|
g_free (version_str);
|
|
if (!gst_gl_shader_compile_attach_stage (ret, stage, &error)) {
|
|
GST_ERROR_OBJECT (convert, "Failed to compile fragment shader %s",
|
|
error->message);
|
|
g_clear_error (&error);
|
|
g_free (info->frag_prog);
|
|
info->frag_prog = NULL;
|
|
gst_object_unref (stage);
|
|
gst_object_unref (ret);
|
|
return NULL;
|
|
}
|
|
|
|
if (!gst_gl_shader_link (ret, &error)) {
|
|
GST_ERROR_OBJECT (convert, "Failed to link shader %s", error->message);
|
|
g_clear_error (&error);
|
|
g_free (info->frag_prog);
|
|
info->frag_prog = NULL;
|
|
gst_object_unref (ret);
|
|
return NULL;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Called in the gl thread */
|
|
static gboolean
|
|
_init_convert (GstGLColorConvert * convert)
|
|
{
|
|
GstGLFuncs *gl;
|
|
struct ConvertInfo *info = &convert->priv->convert_info;
|
|
gint i;
|
|
|
|
gl = convert->context->gl_vtable;
|
|
|
|
if (convert->initted)
|
|
return TRUE;
|
|
|
|
GST_INFO ("Initializing color conversion from %s to %s",
|
|
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (&convert->in_info)),
|
|
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (&convert->out_info)));
|
|
|
|
if (!gl->CreateProgramObject && !gl->CreateProgram) {
|
|
GST_ERROR_OBJECT (convert, "Cannot perform color conversion without "
|
|
"OpenGL shaders");
|
|
goto error;
|
|
}
|
|
|
|
if (GST_VIDEO_INFO_IS_RGB (&convert->in_info)) {
|
|
if (GST_VIDEO_INFO_IS_RGB (&convert->out_info)) {
|
|
_RGB_to_RGB (convert);
|
|
}
|
|
}
|
|
|
|
if (GST_VIDEO_INFO_IS_YUV (&convert->in_info)) {
|
|
if (GST_VIDEO_INFO_IS_RGB (&convert->out_info)) {
|
|
_YUV_to_RGB (convert);
|
|
}
|
|
}
|
|
|
|
if (GST_VIDEO_INFO_IS_RGB (&convert->in_info)) {
|
|
if (GST_VIDEO_INFO_IS_YUV (&convert->out_info)) {
|
|
_RGB_to_YUV (convert);
|
|
}
|
|
}
|
|
|
|
if (GST_VIDEO_INFO_IS_RGB (&convert->in_info)) {
|
|
if (GST_VIDEO_INFO_IS_GRAY (&convert->out_info)) {
|
|
_RGB_to_GRAY (convert);
|
|
}
|
|
}
|
|
|
|
if (GST_VIDEO_INFO_IS_GRAY (&convert->in_info)) {
|
|
if (GST_VIDEO_INFO_IS_RGB (&convert->out_info)) {
|
|
_GRAY_to_RGB (convert);
|
|
}
|
|
}
|
|
|
|
if (!info->frag_body || info->in_n_textures == 0 || info->out_n_textures == 0)
|
|
goto unhandled_format;
|
|
|
|
/* multiple draw targets not supported on GLES2... */
|
|
if (info->out_n_textures > 1 && !gl->DrawBuffers) {
|
|
GST_ERROR ("Conversion requires output to multiple draw buffers");
|
|
goto incompatible_api;
|
|
}
|
|
|
|
/* Requires reading from a RG/LA framebuffer... */
|
|
if (USING_GLES2 (convert->context) && !USING_GLES3 (convert->context) &&
|
|
(GST_VIDEO_INFO_FORMAT (&convert->out_info) == GST_VIDEO_FORMAT_YUY2 ||
|
|
GST_VIDEO_INFO_FORMAT (&convert->out_info) ==
|
|
GST_VIDEO_FORMAT_UYVY)) {
|
|
GST_ERROR ("Conversion requires reading with an unsupported format");
|
|
goto incompatible_api;
|
|
}
|
|
|
|
if (!(convert->shader = _create_shader (convert)))
|
|
goto error;
|
|
|
|
convert->priv->attr_position =
|
|
gst_gl_shader_get_attribute_location (convert->shader, "a_position");
|
|
convert->priv->attr_texture =
|
|
gst_gl_shader_get_attribute_location (convert->shader, "a_texcoord");
|
|
|
|
gst_gl_shader_use (convert->shader);
|
|
|
|
if (info->cms_offset && info->cms_coeff1
|
|
&& info->cms_coeff2 && info->cms_coeff3) {
|
|
gst_gl_shader_set_uniform_3fv (convert->shader, "offset", 1,
|
|
info->cms_offset);
|
|
gst_gl_shader_set_uniform_3fv (convert->shader, "coeff1", 1,
|
|
info->cms_coeff1);
|
|
gst_gl_shader_set_uniform_3fv (convert->shader, "coeff2", 1,
|
|
info->cms_coeff2);
|
|
gst_gl_shader_set_uniform_3fv (convert->shader, "coeff3", 1,
|
|
info->cms_coeff3);
|
|
}
|
|
|
|
for (i = info->in_n_textures; i >= 0; i--) {
|
|
if (info->shader_tex_names[i])
|
|
gst_gl_shader_set_uniform_1i (convert->shader, info->shader_tex_names[i],
|
|
i);
|
|
}
|
|
|
|
gst_gl_shader_set_uniform_1f (convert->shader, "width",
|
|
GST_VIDEO_INFO_WIDTH (&convert->in_info));
|
|
gst_gl_shader_set_uniform_1f (convert->shader, "height",
|
|
GST_VIDEO_INFO_HEIGHT (&convert->in_info));
|
|
|
|
if (convert->priv->from_texture_target == GST_GL_TEXTURE_TARGET_RECTANGLE) {
|
|
gst_gl_shader_set_uniform_1f (convert->shader, "poffset_x", 1.);
|
|
gst_gl_shader_set_uniform_1f (convert->shader, "poffset_y", 1.);
|
|
} else {
|
|
gst_gl_shader_set_uniform_1f (convert->shader, "poffset_x",
|
|
1. / (gfloat) GST_VIDEO_INFO_WIDTH (&convert->in_info));
|
|
gst_gl_shader_set_uniform_1f (convert->shader, "poffset_y",
|
|
1. / (gfloat) GST_VIDEO_INFO_HEIGHT (&convert->in_info));
|
|
}
|
|
|
|
if (info->chroma_sampling[0] > 0.0f && info->chroma_sampling[1] > 0.0f) {
|
|
gst_gl_shader_set_uniform_2fv (convert->shader, "chroma_sampling", 1,
|
|
info->chroma_sampling);
|
|
}
|
|
|
|
gst_gl_context_clear_shader (convert->context);
|
|
|
|
if (convert->fbo == NULL && !_init_convert_fbo (convert)) {
|
|
goto error;
|
|
}
|
|
|
|
if (!convert->priv->vertex_buffer) {
|
|
if (gl->GenVertexArrays) {
|
|
gl->GenVertexArrays (1, &convert->priv->vao);
|
|
gl->BindVertexArray (convert->priv->vao);
|
|
}
|
|
|
|
gl->GenBuffers (1, &convert->priv->vertex_buffer);
|
|
gl->BindBuffer (GL_ARRAY_BUFFER, convert->priv->vertex_buffer);
|
|
gl->BufferData (GL_ARRAY_BUFFER, 4 * 5 * sizeof (GLfloat), vertices,
|
|
GL_STATIC_DRAW);
|
|
|
|
gl->GenBuffers (1, &convert->priv->vbo_indices);
|
|
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, convert->priv->vbo_indices);
|
|
gl->BufferData (GL_ELEMENT_ARRAY_BUFFER, sizeof (indices), indices,
|
|
GL_STATIC_DRAW);
|
|
|
|
if (gl->GenVertexArrays) {
|
|
_bind_buffer (convert);
|
|
gl->BindVertexArray (0);
|
|
}
|
|
|
|
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
|
|
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
|
|
}
|
|
|
|
gl->BindTexture (GL_TEXTURE_2D, 0);
|
|
|
|
convert->initted = TRUE;
|
|
|
|
return TRUE;
|
|
|
|
unhandled_format:
|
|
GST_ERROR_OBJECT (convert, "Don't know how to convert from %s to %s",
|
|
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (&convert->in_info)),
|
|
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (&convert->out_info)));
|
|
|
|
error:
|
|
return FALSE;
|
|
|
|
incompatible_api:
|
|
{
|
|
GST_ERROR_OBJECT (convert, "Converting from %s to %s requires "
|
|
"functionality that the current OpenGL setup does not support",
|
|
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (&convert->in_info)),
|
|
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT
|
|
(&convert->out_info)));
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/* called by _init_convert (in the gl thread) */
|
|
static gboolean
|
|
_init_convert_fbo (GstGLColorConvert * convert)
|
|
{
|
|
guint out_width, out_height;
|
|
|
|
out_width = GST_VIDEO_INFO_WIDTH (&convert->out_info);
|
|
out_height = GST_VIDEO_INFO_HEIGHT (&convert->out_info);
|
|
|
|
convert->fbo =
|
|
gst_gl_framebuffer_new_with_default_depth (convert->context, out_width,
|
|
out_height);
|
|
|
|
return convert->fbo != NULL;
|
|
}
|
|
|
|
static gboolean
|
|
_do_convert_one_view (GstGLContext * context, GstGLColorConvert * convert,
|
|
guint view_num)
|
|
{
|
|
guint in_width, in_height, out_width, out_height;
|
|
struct ConvertInfo *c_info = &convert->priv->convert_info;
|
|
GstMapInfo out_info[GST_VIDEO_MAX_PLANES], in_info[GST_VIDEO_MAX_PLANES];
|
|
gboolean res = TRUE;
|
|
gint i, j = 0;
|
|
const gint in_plane_offset = view_num * c_info->in_n_textures;
|
|
const gint out_plane_offset = view_num * c_info->out_n_textures;
|
|
|
|
out_width = GST_VIDEO_INFO_WIDTH (&convert->out_info);
|
|
out_height = GST_VIDEO_INFO_HEIGHT (&convert->out_info);
|
|
in_width = GST_VIDEO_INFO_WIDTH (&convert->in_info);
|
|
in_height = GST_VIDEO_INFO_HEIGHT (&convert->in_info);
|
|
|
|
for (i = 0; i < c_info->in_n_textures; i++) {
|
|
convert->priv->in_tex[i] =
|
|
(GstGLMemory *) gst_buffer_peek_memory (convert->inbuf,
|
|
i + in_plane_offset);
|
|
if (!gst_is_gl_memory ((GstMemory *) convert->priv->in_tex[i])) {
|
|
GST_ERROR_OBJECT (convert, "input must be GstGLMemory");
|
|
res = FALSE;
|
|
goto out;
|
|
}
|
|
if (!gst_memory_map ((GstMemory *) convert->priv->in_tex[i], &in_info[i],
|
|
GST_MAP_READ | GST_MAP_GL)) {
|
|
GST_ERROR_OBJECT (convert, "failed to map input memory %p",
|
|
convert->priv->in_tex[i]);
|
|
res = FALSE;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
for (j = 0; j < c_info->out_n_textures; j++) {
|
|
GstGLMemory *out_tex =
|
|
(GstGLMemory *) gst_buffer_peek_memory (convert->outbuf,
|
|
j + out_plane_offset);
|
|
gint mem_width, mem_height;
|
|
|
|
if (!gst_is_gl_memory ((GstMemory *) out_tex)) {
|
|
GST_ERROR_OBJECT (convert, "output must be GstGLMemory");
|
|
res = FALSE;
|
|
goto out;
|
|
}
|
|
|
|
mem_width = gst_gl_memory_get_texture_width (out_tex);
|
|
mem_height = gst_gl_memory_get_texture_height (out_tex);
|
|
|
|
if (out_tex->tex_format == GST_GL_LUMINANCE
|
|
|| out_tex->tex_format == GST_GL_LUMINANCE_ALPHA
|
|
|| out_width != mem_width || out_height != mem_height) {
|
|
/* Luminance formats are not color renderable */
|
|
/* renderering to a framebuffer only renders the intersection of all
|
|
* the attachments i.e. the smallest attachment size */
|
|
if (!convert->priv->out_tex[j]) {
|
|
GstGLVideoAllocationParams *params;
|
|
GstGLBaseMemoryAllocator *base_mem_allocator;
|
|
GstAllocator *allocator;
|
|
GstVideoInfo temp_info;
|
|
|
|
gst_video_info_set_format (&temp_info, GST_VIDEO_FORMAT_RGBA, out_width,
|
|
out_height);
|
|
|
|
allocator = gst_allocator_find (GST_GL_MEMORY_ALLOCATOR_NAME);
|
|
base_mem_allocator = GST_GL_BASE_MEMORY_ALLOCATOR (allocator);
|
|
params = gst_gl_video_allocation_params_new (context, NULL, &temp_info,
|
|
0, NULL, convert->priv->to_texture_target, GST_GL_RGBA);
|
|
|
|
convert->priv->out_tex[j] =
|
|
(GstGLMemory *) gst_gl_base_memory_alloc (base_mem_allocator,
|
|
(GstGLAllocationParams *) params);
|
|
|
|
gst_gl_allocation_params_free ((GstGLAllocationParams *) params);
|
|
gst_object_unref (allocator);
|
|
}
|
|
} else {
|
|
convert->priv->out_tex[j] = out_tex;
|
|
}
|
|
|
|
if (!gst_memory_map ((GstMemory *) convert->priv->out_tex[j], &out_info[j],
|
|
GST_MAP_WRITE | GST_MAP_GL)) {
|
|
GST_ERROR_OBJECT (convert, "failed to map output memory %p",
|
|
convert->priv->out_tex[i]);
|
|
res = FALSE;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
GST_LOG_OBJECT (convert, "converting to textures:%p,%p,%p,%p "
|
|
"dimensions:%ux%u, from textures:%p,%p,%p,%p dimensions:%ux%u",
|
|
convert->priv->out_tex[0], convert->priv->out_tex[1],
|
|
convert->priv->out_tex[2], convert->priv->out_tex[3], out_width,
|
|
out_height, convert->priv->in_tex[0], convert->priv->in_tex[1],
|
|
convert->priv->in_tex[2], convert->priv->in_tex[3], in_width, in_height);
|
|
|
|
if (!_do_convert_draw (context, convert))
|
|
res = FALSE;
|
|
|
|
out:
|
|
for (j--; j >= 0; j--) {
|
|
GstGLMemory *out_tex =
|
|
(GstGLMemory *) gst_buffer_peek_memory (convert->outbuf,
|
|
j + out_plane_offset);
|
|
gint mem_width, mem_height;
|
|
|
|
gst_memory_unmap ((GstMemory *) convert->priv->out_tex[j], &out_info[j]);
|
|
|
|
mem_width = gst_gl_memory_get_texture_width (out_tex);
|
|
mem_height = gst_gl_memory_get_texture_height (out_tex);
|
|
|
|
if (out_tex->tex_format == GST_GL_LUMINANCE
|
|
|| out_tex->tex_format == GST_GL_LUMINANCE_ALPHA
|
|
|| out_width != mem_width || out_height != mem_height) {
|
|
GstMapInfo to_info, from_info;
|
|
|
|
if (!gst_memory_map ((GstMemory *) convert->priv->out_tex[j], &from_info,
|
|
GST_MAP_READ | GST_MAP_GL)) {
|
|
GST_ERROR_OBJECT (convert, "Failed to map intermediate memory");
|
|
res = FALSE;
|
|
continue;
|
|
}
|
|
if (!gst_memory_map ((GstMemory *) out_tex, &to_info,
|
|
GST_MAP_WRITE | GST_MAP_GL)) {
|
|
GST_ERROR_OBJECT (convert, "Failed to map intermediate memory");
|
|
res = FALSE;
|
|
continue;
|
|
}
|
|
gst_gl_memory_copy_into (convert->priv->out_tex[j],
|
|
out_tex->tex_id, convert->priv->to_texture_target,
|
|
out_tex->tex_format, mem_width, mem_height);
|
|
gst_memory_unmap ((GstMemory *) convert->priv->out_tex[j], &from_info);
|
|
gst_memory_unmap ((GstMemory *) out_tex, &to_info);
|
|
} else {
|
|
convert->priv->out_tex[j] = NULL;
|
|
}
|
|
}
|
|
|
|
/* YV12 the same as I420 except planes 1+2 swapped */
|
|
if (GST_VIDEO_INFO_FORMAT (&convert->out_info) == GST_VIDEO_FORMAT_YV12) {
|
|
GstMemory *mem1 =
|
|
gst_buffer_get_memory (convert->outbuf, 1 + out_plane_offset);
|
|
GstMemory *mem2 =
|
|
gst_buffer_get_memory (convert->outbuf, 2 + out_plane_offset);
|
|
|
|
gst_buffer_replace_memory (convert->outbuf, 1 + out_plane_offset, mem2);
|
|
gst_buffer_replace_memory (convert->outbuf, 2 + out_plane_offset, mem1);
|
|
}
|
|
|
|
for (i--; i >= 0; i--) {
|
|
gst_memory_unmap ((GstMemory *) convert->priv->in_tex[i], &in_info[i]);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
/* Called by the idle function in the gl thread */
|
|
void
|
|
_do_convert (GstGLContext * context, GstGLColorConvert * convert)
|
|
{
|
|
GstVideoInfo *in_info = &convert->in_info;
|
|
struct ConvertInfo *c_info = &convert->priv->convert_info;
|
|
gboolean res = TRUE;
|
|
gint views, v;
|
|
GstGLSyncMeta *sync_meta;
|
|
GstFlowReturn ret;
|
|
|
|
convert->outbuf = NULL;
|
|
|
|
if (GST_VIDEO_INFO_MULTIVIEW_MODE (in_info) ==
|
|
GST_VIDEO_MULTIVIEW_MODE_SEPARATED)
|
|
views = GST_VIDEO_INFO_VIEWS (in_info);
|
|
else
|
|
views = 1;
|
|
|
|
c_info->in_n_textures =
|
|
_get_n_textures (GST_VIDEO_INFO_FORMAT (&convert->in_info));
|
|
c_info->out_n_textures =
|
|
_get_n_textures (GST_VIDEO_INFO_FORMAT (&convert->out_info));
|
|
|
|
{
|
|
gboolean tex_format_change = FALSE;
|
|
guint i, v;
|
|
|
|
for (v = 0; v < views; v++) {
|
|
for (i = 0; i < c_info->in_n_textures; i++) {
|
|
guint j = v * c_info->in_n_textures + i;
|
|
GstGLMemory *in_tex =
|
|
(GstGLMemory *) gst_buffer_peek_memory (convert->inbuf, j);
|
|
if (!gst_is_gl_memory ((GstMemory *) in_tex)) {
|
|
GST_ERROR_OBJECT (convert, "input must be GstGLMemory");
|
|
convert->priv->result = FALSE;
|
|
return;
|
|
}
|
|
|
|
if (j >= GST_VIDEO_MAX_PLANES)
|
|
/* our arrays aren't that big */
|
|
g_assert_not_reached ();
|
|
|
|
if (v > 0 && in_tex->tex_format != convert->priv->in_tex_formats[i]) {
|
|
GST_ERROR_OBJECT (convert, "Cannot convert textures with "
|
|
"different types");
|
|
convert->priv->result = FALSE;
|
|
return;
|
|
}
|
|
|
|
if (convert->priv->in_tex_formats[j] != in_tex->tex_format)
|
|
tex_format_change = TRUE;
|
|
|
|
convert->priv->in_tex_formats[j] = in_tex->tex_format;
|
|
}
|
|
}
|
|
|
|
if (tex_format_change)
|
|
gst_gl_color_convert_reset_shader (convert);
|
|
}
|
|
|
|
if (!_init_convert (convert)) {
|
|
convert->priv->result = FALSE;
|
|
return;
|
|
}
|
|
|
|
sync_meta = gst_buffer_get_gl_sync_meta (convert->inbuf);
|
|
if (sync_meta)
|
|
gst_gl_sync_meta_wait (sync_meta, convert->context);
|
|
|
|
if (!convert->priv->pool) {
|
|
gboolean ret;
|
|
/* No pool! */
|
|
GstQuery *query = gst_query_new_allocation (convert->priv->out_caps, TRUE);
|
|
ret = gst_gl_color_convert_decide_allocation (convert, query);
|
|
gst_query_unref (query);
|
|
|
|
if (!ret) {
|
|
GST_ERROR_OBJECT (convert, "Failed to choose allocation parameters");
|
|
convert->priv->result = FALSE;
|
|
return;
|
|
}
|
|
|
|
if (!convert->priv->pool) {
|
|
GST_ERROR_OBJECT (convert, "Failed to create a buffer pool");
|
|
convert->priv->result = FALSE;
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (!convert->priv->pool_started) {
|
|
if (!gst_buffer_pool_set_active (convert->priv->pool, TRUE)) {
|
|
GST_ERROR_OBJECT (convert, "Failed to start buffer pool");
|
|
convert->priv->result = FALSE;
|
|
return;
|
|
}
|
|
convert->priv->pool_started = TRUE;
|
|
}
|
|
|
|
ret =
|
|
gst_buffer_pool_acquire_buffer (convert->priv->pool, &convert->outbuf,
|
|
NULL);
|
|
if (ret != GST_FLOW_OK) {
|
|
GST_ERROR_OBJECT (convert, "Failed to acquire buffer from pool: %s",
|
|
gst_flow_get_name (ret));
|
|
convert->priv->result = FALSE;
|
|
return;
|
|
}
|
|
|
|
gst_gl_insert_debug_marker (context, "%s converting from %s to %s",
|
|
GST_OBJECT_NAME (convert),
|
|
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (in_info)),
|
|
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (&convert->out_info)));
|
|
/* Handle all views on input and output one at a time */
|
|
for (v = 0; res && v < views; v++)
|
|
res = _do_convert_one_view (context, convert, v);
|
|
|
|
if (!res) {
|
|
gst_buffer_unref (convert->outbuf);
|
|
convert->outbuf = NULL;
|
|
}
|
|
|
|
if (convert->outbuf) {
|
|
GstVideoOverlayCompositionMeta *composition_meta;
|
|
GstGLSyncMeta *sync_meta =
|
|
gst_buffer_add_gl_sync_meta (convert->context, convert->outbuf);
|
|
|
|
if (sync_meta)
|
|
gst_gl_sync_meta_set_sync_point (sync_meta, convert->context);
|
|
|
|
composition_meta =
|
|
gst_buffer_get_video_overlay_composition_meta (convert->inbuf);
|
|
if (composition_meta) {
|
|
GST_DEBUG ("found video overlay composition meta, applying on output.");
|
|
gst_buffer_add_video_overlay_composition_meta
|
|
(convert->outbuf, composition_meta->overlay);
|
|
}
|
|
}
|
|
|
|
convert->priv->result = res;
|
|
return;
|
|
}
|
|
|
|
static gboolean
|
|
_do_convert_draw (GstGLContext * context, GstGLColorConvert * convert)
|
|
{
|
|
GstGLFuncs *gl;
|
|
struct ConvertInfo *c_info = &convert->priv->convert_info;
|
|
guint out_width, out_height;
|
|
gint i;
|
|
gboolean ret = TRUE;
|
|
|
|
GLenum multipleRT[] = {
|
|
GL_COLOR_ATTACHMENT0,
|
|
GL_COLOR_ATTACHMENT1,
|
|
GL_COLOR_ATTACHMENT2
|
|
};
|
|
|
|
gl = context->gl_vtable;
|
|
|
|
gst_gl_framebuffer_bind (convert->fbo);
|
|
|
|
/* attach the texture to the FBO to renderer to */
|
|
for (i = 0; i < c_info->out_n_textures; i++) {
|
|
GstGLBaseMemory *tex = (GstGLBaseMemory *) convert->priv->out_tex[i];
|
|
|
|
gst_gl_framebuffer_attach (convert->fbo, GL_COLOR_ATTACHMENT0 + i, tex);
|
|
}
|
|
|
|
if (gl->DrawBuffers)
|
|
gl->DrawBuffers (c_info->out_n_textures, multipleRT);
|
|
else if (gl->DrawBuffer)
|
|
gl->DrawBuffer (GL_COLOR_ATTACHMENT0);
|
|
|
|
gst_gl_framebuffer_get_effective_dimensions (convert->fbo, &out_width,
|
|
&out_height);
|
|
gl->Viewport (0, 0, out_width, out_height);
|
|
|
|
gst_gl_shader_use (convert->shader);
|
|
|
|
if (gl->BindVertexArray)
|
|
gl->BindVertexArray (convert->priv->vao);
|
|
_bind_buffer (convert);
|
|
|
|
for (i = c_info->in_n_textures - 1; i >= 0; i--) {
|
|
gchar *scale_name = g_strdup_printf ("tex_scale%u", i);
|
|
guint gl_target =
|
|
gst_gl_texture_target_to_gl (convert->priv->from_texture_target);
|
|
|
|
gl->ActiveTexture (GL_TEXTURE0 + i);
|
|
gl->BindTexture (gl_target, convert->priv->in_tex[i]->tex_id);
|
|
gl->TexParameteri (gl_target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
|
gl->TexParameteri (gl_target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
|
gl->TexParameteri (gl_target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
|
|
gl->TexParameteri (gl_target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
|
|
|
|
gst_gl_shader_set_uniform_2fv (convert->shader, scale_name, 1,
|
|
convert->priv->in_tex[i]->tex_scaling);
|
|
|
|
g_free (scale_name);
|
|
}
|
|
|
|
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, 0);
|
|
|
|
if (gl->BindVertexArray)
|
|
gl->BindVertexArray (0);
|
|
else
|
|
_unbind_buffer (convert);
|
|
|
|
if (gl->DrawBuffer)
|
|
gl->DrawBuffer (GL_COLOR_ATTACHMENT0);
|
|
|
|
/* we are done with the shader */
|
|
gst_gl_context_clear_shader (context);
|
|
|
|
if (!gst_gl_context_check_framebuffer_status (context, GL_FRAMEBUFFER))
|
|
ret = FALSE;
|
|
|
|
gst_gl_context_clear_framebuffer (context);
|
|
|
|
return ret;
|
|
}
|