mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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360 lines
8.8 KiB
C
360 lines
8.8 KiB
C
/*
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* image.c - Image utilities for the tests
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*
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* Copyright (C) 2010-2011 Splitted-Desktop Systems
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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 Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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#include "image.h"
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GstVaapiImage *
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image_generate(
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GstVaapiDisplay *display,
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GstVaapiImageFormat format,
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guint width,
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guint height
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)
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{
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const guint w = width;
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const guint h = height;
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GstVaapiImage *image;
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image = gst_vaapi_image_new(display, format, w, h);
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if (!image)
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return NULL;
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if (image_draw_rectangle(image, 0, 0, w/2, h/2, 0xffff0000) &&
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image_draw_rectangle(image, w/2, 0, w/2, h/2, 0xff00ff00) &&
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image_draw_rectangle(image, 0, h/2, w/2, h/2, 0xff0000ff) &&
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image_draw_rectangle(image, w/2, h/2, w/2, h/2, 0xff000000))
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return image;
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gst_vaapi_object_unref(image);
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return NULL;
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}
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typedef void (*DrawRectFunc)(
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guchar *pixels[3],
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guint stride[3],
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gint x,
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gint y,
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guint width,
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guint height,
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guint32 color
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);
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static void draw_rect_ARGB(
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guchar *pixels[3],
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guint stride[3],
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gint x,
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gint y,
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guint width,
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guint height,
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guint32 color
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)
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{
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guint i, j;
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color = GUINT32_TO_BE(color);
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for (j = 0; j < height; j++) {
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guint32 *p = (guint32 *)(pixels[0] + (y + j) * stride[0] + x * 4);
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for (i = 0; i < width; i++)
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p[i] = color;
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}
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}
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static void draw_rect_BGRA(
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guchar *pixels[3],
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guint stride[3],
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gint x,
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gint y,
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guint width,
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guint height,
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guint32 color
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)
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{
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// Converts ARGB color to BGRA
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color = GUINT32_SWAP_LE_BE(color);
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draw_rect_ARGB(pixels, stride, x, y, width, height, color);
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}
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static void draw_rect_RGBA(
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guchar *pixels[3],
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guint stride[3],
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gint x,
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gint y,
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guint width,
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guint height,
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guint32 color
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)
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{
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// Converts ARGB color to RGBA
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color = ((color >> 24) & 0xff) | ((color & 0xffffff) << 8);
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draw_rect_ARGB(pixels, stride, x, y, width, height, color);
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}
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static void draw_rect_ABGR(
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guchar *pixels[3],
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guint stride[3],
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gint x,
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gint y,
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guint width,
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guint height,
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guint32 color
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)
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{
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// Converts ARGB color to ABGR
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color = ((color & 0xff00ff00) |
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((color >> 16) & 0xff) |
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((color & 0xff) << 16));
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draw_rect_ARGB(pixels, stride, x, y, width, height, color);
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}
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static void draw_rect_NV12( // Y, UV planes
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guchar *pixels[3],
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guint stride[3],
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gint x,
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gint y,
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guint width,
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guint height,
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guint32 color
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)
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{
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const guchar Y = color >> 16;
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const guchar Cb = color >> 8;
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const guchar Cr = color;
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guchar *dst;
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guint i, j;
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dst = pixels[0] + y * stride[0] + x;
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for (j = 0; j < height; j++, dst += stride[0])
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for (i = 0; i < width; i++)
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dst[i] = Y;
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x /= 2;
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y /= 2;
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width /= 2;
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height /= 2;
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dst = pixels[1] + y * stride[1] + x * 2;
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for (j = 0; j < height; j++, dst += stride[1])
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for (i = 0; i < width; i++) {
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dst[2*i + 0] = Cb;
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dst[2*i + 1] = Cr;
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}
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}
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static void draw_rect_YV12( // Y, V, U planes
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guchar *pixels[3],
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guint stride[3],
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gint x,
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gint y,
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guint width,
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guint height,
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guint32 color
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)
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{
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const guchar Y = color >> 16;
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const guchar Cb = color >> 8;
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const guchar Cr = color;
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guchar *pY, *pU, *pV;
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guint i, j;
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pY = pixels[0] + y * stride[0] + x;
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for (j = 0; j < height; j++, pY += stride[0])
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for (i = 0; i < width; i++)
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pY[i] = Y;
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x /= 2;
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y /= 2;
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width /= 2;
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height /= 2;
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pU = pixels[1] + y * stride[1] + x;
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pV = pixels[2] + y * stride[2] + x;
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for (j = 0; j < height; j++, pU += stride[1], pV += stride[2])
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for (i = 0; i < width; i++) {
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pU[i] = Cb;
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pV[i] = Cr;
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}
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}
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static void draw_rect_I420( // Y, U, V planes
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guchar *pixels[3],
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guint stride[3],
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gint x,
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gint y,
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guint width,
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guint height,
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guint32 color
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)
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{
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guchar *new_pixels[3] = { pixels[0], pixels[2], pixels[1] };
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guint new_stride[3] = { stride[0], stride[2], stride[1] };
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draw_rect_YV12(new_pixels, new_stride, x, y, width, height, color);
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}
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static void draw_rect_AYUV(
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guchar *pixels[3],
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guint stride[3],
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gint x,
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gint y,
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guint width,
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guint height,
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guint32 color
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)
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{
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guint i, j;
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color = color | 0xff000000;
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for (j = 0; j < height; j++) {
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guint32 *p = (guint32 *)(pixels[0] + (y + j) * stride[0] + x * 4);
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for (i = 0; i < width; i++)
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p[i] = color;
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}
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}
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static inline guint32 argb2yuv(guint32 color)
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{
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const gint32 r = (color >> 16) & 0xff;
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const gint32 g = (color >> 8) & 0xff;
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const gint32 b = (color ) & 0xff;
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const guint32 y = (( 263 * r + 516 * g + 100 * b) >> 10) + 16;
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const guint32 u = ((-152 * r - 298 * g + 450 * b) >> 10) + 128;
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const guint32 v = (( 450 * r - 376 * g - 73 * b) >> 10) + 128;
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return (y << 16) | (u << 8) | v;
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}
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gboolean
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image_draw_rectangle(
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GstVaapiImage *image,
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gint x,
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gint y,
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guint width,
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guint height,
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guint32 color
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)
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{
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const GstVaapiImageFormat image_format = gst_vaapi_image_get_format(image);
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const guint image_width = gst_vaapi_image_get_width(image);
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const guint image_height = gst_vaapi_image_get_height(image);
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GstVaapiDisplay *display;
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guchar *pixels[3];
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guint stride[3];
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DrawRectFunc draw_rect = NULL;
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guint i;
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static const struct {
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GstVaapiImageFormat format;
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DrawRectFunc draw_rect;
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}
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map[] = {
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#define _(FORMAT) { GST_VAAPI_IMAGE_##FORMAT, draw_rect_##FORMAT }
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_(ARGB),
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_(BGRA),
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_(RGBA),
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_(ABGR),
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_(NV12),
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_(YV12),
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_(I420),
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_(AYUV),
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#undef _
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{ 0, }
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};
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for (i = 0; !draw_rect && map[i].format; i++)
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if (map[i].format == image_format)
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draw_rect = map[i].draw_rect;
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if (!draw_rect)
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return FALSE;
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display = gst_vaapi_object_get_display(GST_VAAPI_OBJECT(image));
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if (!display)
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return FALSE;
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if (!gst_vaapi_image_map(image))
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return FALSE;
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for (i = 0; i < gst_vaapi_image_get_plane_count(image); i++) {
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pixels[i] = gst_vaapi_image_get_plane(image, i);
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stride[i] = gst_vaapi_image_get_pitch(image, i);
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}
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if (gst_vaapi_image_format_is_yuv(image_format))
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color = argb2yuv(color);
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if (x < 0)
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x = 0;
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if (y < 0)
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y = 0;
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if (width > image_width - x)
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width = image_width - x;
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if (height > image_height - y)
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height = image_height - y;
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gst_vaapi_display_lock(display);
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draw_rect(pixels, stride, x, y, width, height, color);
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gst_vaapi_display_unlock(display);
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return gst_vaapi_image_unmap(image);
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}
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gboolean
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image_upload(GstVaapiImage *image, GstVaapiSurface *surface)
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{
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GstVaapiDisplay *display;
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GstVaapiImageFormat format;
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GstVaapiSubpicture *subpicture;
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display = gst_vaapi_object_get_display(GST_VAAPI_OBJECT(surface));
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if (!display)
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return FALSE;
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format = gst_vaapi_image_get_format(image);
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if (!format)
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return FALSE;
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if (gst_vaapi_surface_put_image(surface, image))
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return TRUE;
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g_print("could not upload %" GST_FOURCC_FORMAT" image to surface\n",
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GST_FOURCC_ARGS(format));
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if (!gst_vaapi_display_has_subpicture_format(display, format, NULL))
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return FALSE;
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g_print("trying as a subpicture\n");
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subpicture = gst_vaapi_subpicture_new(image, 0);
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if (!subpicture)
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g_error("could not create VA subpicture");
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if (!gst_vaapi_surface_associate_subpicture(surface, subpicture,
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NULL, NULL))
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g_error("could not associate subpicture to surface");
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/* The surface holds a reference to the subpicture. This is safe */
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gst_vaapi_object_unref(subpicture);
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return TRUE;
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}
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