Commit 09ab81d8 authored by gb's avatar gb

Generate R/G/B rects.

parent 606c0162
......@@ -29,6 +29,145 @@ static inline void pause(void)
getchar();
}
typedef void (*DrawRectFunc)(
guchar *pixels[3],
guint stride[3],
gint x,
gint y,
guint width,
guint height,
guint32 color
);
static void draw_rect_NV12( // Y, UV planes
guchar *pixels[3],
guint stride[3],
gint x,
gint y,
guint width,
guint height,
guint32 color
)
{
const guchar Y = color >> 16;
const guchar Cb = color >> 8;
const guchar Cr = color;
guchar *dst;
guint i, j;
dst = pixels[0] + y * stride[0] + x;
for (j = 0; j < height; j++, dst += stride[0])
for (i = 0; i < width; i++)
dst[i] = Y;
x /= 2;
y /= 2;
width /= 2;
height /= 2;
dst = pixels[1] + y * stride[1] + x * 2;
for (j = 0; j < height; j++, dst += stride[1])
for (i = 0; i < width; i++) {
dst[2*i + 0] = Cb;
dst[2*i + 1] = Cr;
}
}
static void draw_rect_YV12( // Y, U, V planes
guchar *pixels[3],
guint stride[3],
gint x,
gint y,
guint width,
guint height,
guint32 color
)
{
const guchar Y = color >> 16;
const guchar Cb = color >> 8;
const guchar Cr = color;
guchar *pY, *pU, *pV;
guint i, j;
pY = pixels[0] + y * stride[0] + x;
for (j = 0; j < height; j++, pY += stride[0])
for (i = 0; i < width; i++)
pY[i] = Y;
x /= 2;
y /= 2;
width /= 2;
height /= 2;
pU = pixels[1] + y * stride[1] + x;
pV = pixels[2] + y * stride[2] + x;
for (j = 0; j < height; j++, pU += stride[1], pV += stride[2])
for (i = 0; i < width; i++) {
pU[i] = Cb;
pV[i] = Cr;
}
}
static gboolean draw_rgb_rects(GstVaapiImage *image)
{
GstVaapiImageFormat format = GST_VAAPI_IMAGE_FORMAT(image);
guint w = GST_VAAPI_IMAGE_WIDTH(image);
guint h = GST_VAAPI_IMAGE_HEIGHT(image);
guchar *pixels[3];
guint stride[3];
guint32 red_color, green_color, blue_color, black_color;
DrawRectFunc draw_rect;
if (!gst_vaapi_image_map(image))
return FALSE;
switch (format) {
case GST_VAAPI_IMAGE_NV12:
draw_rect = draw_rect_NV12;
pixels[0] = gst_vaapi_image_get_plane(image, 0);
stride[0] = gst_vaapi_image_get_pitch(image, 0);
pixels[1] = gst_vaapi_image_get_plane(image, 1);
stride[1] = gst_vaapi_image_get_pitch(image, 1);
goto YUV_colors;
case GST_VAAPI_IMAGE_YV12:
draw_rect = draw_rect_YV12;
pixels[0] = gst_vaapi_image_get_plane(image, 0);
stride[0] = gst_vaapi_image_get_pitch(image, 0);
pixels[1] = gst_vaapi_image_get_plane(image, 2);
stride[1] = gst_vaapi_image_get_pitch(image, 2);
pixels[2] = gst_vaapi_image_get_plane(image, 1);
stride[2] = gst_vaapi_image_get_pitch(image, 1);
goto YUV_colors;
case GST_VAAPI_IMAGE_I420:
draw_rect = draw_rect_YV12;
pixels[0] = gst_vaapi_image_get_plane(image, 0);
stride[0] = gst_vaapi_image_get_pitch(image, 0);
pixels[1] = gst_vaapi_image_get_plane(image, 1);
stride[1] = gst_vaapi_image_get_pitch(image, 1);
pixels[2] = gst_vaapi_image_get_plane(image, 2);
stride[2] = gst_vaapi_image_get_pitch(image, 2);
YUV_colors:
red_color = 0x515af0;
green_color = 0x913622;
blue_color = 0x29f06e;
black_color = 0x108080;
break;
default:
gst_vaapi_image_unmap(image);
return FALSE;
}
draw_rect(pixels, stride, 0, 0, w/2, h/2, red_color);
draw_rect(pixels, stride, w/2, 0, w/2, h/2, green_color);
draw_rect(pixels, stride, 0, h/2, w/2, h/2, blue_color);
draw_rect(pixels, stride, w/2, h/2, w/2, h/2, black_color);
if (!gst_vaapi_image_unmap(image))
return FALSE;
return TRUE;
}
int
main(int argc, char *argv[])
{
......@@ -57,6 +196,13 @@ main(int argc, char *argv[])
image = gst_vaapi_image_new(display, GST_VAAPI_IMAGE_NV12, width, height);
if (!image)
g_error("could not create Gst/VA image");
if (!draw_rgb_rects(image))
g_error("could not draw RGB rectangels");
if (!gst_vaapi_surface_put_image(surface, image))
g_error("could not upload image");
if (!gst_vaapi_surface_sync(surface))
g_error("could not complete image upload");
g_print("#\n");
g_print("# Create window with gst_vaapi_window_x11_new()\n");
......@@ -86,7 +232,8 @@ main(int argc, char *argv[])
rootwin = RootWindow(dpy, screen);
white_pixel = WhitePixel(dpy, screen);
black_pixel = BlackPixel(dpy, screen);
win = XCreateSimpleWindow(
win = XCreateSimpleWindow(
dpy,
rootwin,
0, 0, win_width, win_height,
......
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