2020-12-09 16:14:11 +03:00
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/*
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* Copyright © 2020 Collabora, Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "config.h"
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#include <stdio.h>
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#include <string.h>
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#include <sys/mman.h>
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#include <math.h>
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#include <unistd.h>
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#include "weston-test-client-helper.h"
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#include "weston-test-fixture-compositor.h"
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#include "shared/os-compatibility.h"
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2021-02-04 18:39:45 +03:00
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#include "shared/weston-drm-fourcc.h"
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2020-12-09 16:14:11 +03:00
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#include "shared/xalloc.h"
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static enum test_result_code
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fixture_setup(struct weston_test_harness *harness)
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{
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struct compositor_setup setup;
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compositor_setup_defaults(&setup);
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setup.renderer = RENDERER_GL;
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setup.width = 324;
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setup.height = 264;
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setup.shell = SHELL_TEST_DESKTOP;
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2019-04-18 19:15:48 +03:00
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setup.logging_scopes = "log,gl-shader-generator";
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2020-12-09 16:14:11 +03:00
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return weston_test_harness_execute_as_client(harness, &setup);
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}
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DECLARE_FIXTURE_SETUP(fixture_setup);
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struct yuv_buffer {
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void *data;
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size_t bytes;
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struct wl_buffer *proxy;
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int width;
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int height;
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};
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struct yuv_case {
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uint32_t drm_format;
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const char *drm_format_name;
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struct yuv_buffer *(*create_buffer)(struct client *client,
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uint32_t drm_format,
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pixman_image_t *rgb_image);
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};
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static struct yuv_buffer *
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yuv_buffer_create(struct client *client,
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size_t bytes,
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int width,
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int height,
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int stride_bytes,
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uint32_t drm_format)
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{
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struct wl_shm_pool *pool;
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struct yuv_buffer *buf;
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int fd;
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buf = xzalloc(sizeof *buf);
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buf->bytes = bytes;
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buf->width = width;
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buf->height = height;
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fd = os_create_anonymous_file(buf->bytes);
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assert(fd >= 0);
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buf->data = mmap(NULL, buf->bytes,
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PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
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if (buf->data == MAP_FAILED) {
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close(fd);
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assert(buf->data != MAP_FAILED);
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}
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pool = wl_shm_create_pool(client->wl_shm, fd, buf->bytes);
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buf->proxy = wl_shm_pool_create_buffer(pool, 0, buf->width, buf->height,
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stride_bytes, drm_format);
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wl_shm_pool_destroy(pool);
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close(fd);
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return buf;
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}
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static void
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yuv_buffer_destroy(struct yuv_buffer *buf)
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{
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wl_buffer_destroy(buf->proxy);
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assert(munmap(buf->data, buf->bytes) == 0);
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free(buf);
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}
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/*
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* Based on Rec. ITU-R BT.601-7
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*
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* This is intended to be obvious and accurate, not fast.
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*/
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static void
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x8r8g8b8_to_ycbcr8_bt601(uint32_t xrgb,
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uint8_t *y_out, uint8_t *cb_out, uint8_t *cr_out)
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{
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double y, cb, cr;
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double r = (xrgb >> 16) & 0xff;
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double g = (xrgb >> 8) & 0xff;
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double b = (xrgb >> 0) & 0xff;
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/* normalize to [0.0, 1.0] */
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r /= 255.0;
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g /= 255.0;
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b /= 255.0;
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/* Y normalized to [0.0, 1.0], Cb and Cr [-0.5, 0.5] */
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y = 0.299 * r + 0.587 * g + 0.114 * b;
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cr = (r - y) / 1.402;
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cb = (b - y) / 1.772;
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/* limited range quantization to 8 bit */
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*y_out = round(219.0 * y + 16.0);
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if (cr_out)
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*cr_out = round(224.0 * cr + 128.0);
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if (cb_out)
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*cb_out = round(224.0 * cb + 128.0);
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}
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/*
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* 3 plane YCbCr
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* plane 0: Y plane, [7:0] Y
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* plane 1: Cb plane, [7:0] Cb
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* plane 2: Cr plane, [7:0] Cr
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* 2x2 subsampled Cb (1) and Cr (2) planes
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*/
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static struct yuv_buffer *
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yuv420_create_buffer(struct client *client,
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uint32_t drm_format,
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pixman_image_t *rgb_image)
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{
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struct yuv_buffer *buf;
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size_t bytes;
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int width;
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int height;
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int x, y;
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void *rgb_pixels;
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int rgb_stride_bytes;
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uint32_t *rgb_row;
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uint8_t *y_base;
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uint8_t *u_base;
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uint8_t *v_base;
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uint8_t *y_row;
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uint8_t *u_row;
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uint8_t *v_row;
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uint32_t argb;
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assert(drm_format == DRM_FORMAT_YUV420);
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width = pixman_image_get_width(rgb_image);
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height = pixman_image_get_height(rgb_image);
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rgb_pixels = pixman_image_get_data(rgb_image);
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rgb_stride_bytes = pixman_image_get_stride(rgb_image);
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/* Full size Y, quarter U and V */
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bytes = width * height + (width / 2) * (height / 2) * 2;
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buf = yuv_buffer_create(client, bytes, width, height, width, drm_format);
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y_base = buf->data;
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u_base = y_base + width * height;
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v_base = u_base + (width / 2) * (height / 2);
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for (y = 0; y < height; y++) {
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rgb_row = rgb_pixels + (y / 2 * 2) * rgb_stride_bytes;
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y_row = y_base + y * width;
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u_row = u_base + (y / 2) * (width / 2);
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v_row = v_base + (y / 2) * (width / 2);
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for (x = 0; x < width; x++) {
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/*
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* Sub-sample the source image instead, so that U and V
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* sub-sampling does not require proper
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* filtering/averaging/siting.
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*/
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argb = *(rgb_row + x / 2 * 2);
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/*
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* A stupid way of "sub-sampling" chroma. This does not
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* do the necessary filtering/averaging/siting or
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* alternate Cb/Cr rows.
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*/
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if ((y & 1) == 0 && (x & 1) == 0) {
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x8r8g8b8_to_ycbcr8_bt601(argb, y_row + x,
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u_row + x / 2,
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v_row + x / 2);
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} else {
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x8r8g8b8_to_ycbcr8_bt601(argb, y_row + x,
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NULL, NULL);
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}
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}
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}
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return buf;
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}
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/*
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* 2 plane YCbCr
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* plane 0 = Y plane, [7:0] Y
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* plane 1 = Cr:Cb plane, [15:0] Cr:Cb little endian
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* 2x2 subsampled Cr:Cb plane
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*/
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static struct yuv_buffer *
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nv12_create_buffer(struct client *client,
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uint32_t drm_format,
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pixman_image_t *rgb_image)
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{
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struct yuv_buffer *buf;
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size_t bytes;
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int width;
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int height;
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int x, y;
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void *rgb_pixels;
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int rgb_stride_bytes;
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uint32_t *rgb_row;
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uint8_t *y_base;
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uint16_t *uv_base;
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uint8_t *y_row;
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uint16_t *uv_row;
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uint32_t argb;
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uint8_t cr;
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uint8_t cb;
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assert(drm_format == DRM_FORMAT_NV12);
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width = pixman_image_get_width(rgb_image);
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height = pixman_image_get_height(rgb_image);
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rgb_pixels = pixman_image_get_data(rgb_image);
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rgb_stride_bytes = pixman_image_get_stride(rgb_image);
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/* Full size Y, quarter UV */
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bytes = width * height + (width / 2) * (height / 2) * sizeof(uint16_t);
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buf = yuv_buffer_create(client, bytes, width, height, width, drm_format);
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y_base = buf->data;
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uv_base = (uint16_t *)(y_base + width * height);
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for (y = 0; y < height; y++) {
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rgb_row = rgb_pixels + (y / 2 * 2) * rgb_stride_bytes;
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y_row = y_base + y * width;
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uv_row = uv_base + (y / 2) * (width / 2);
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for (x = 0; x < width; x++) {
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/*
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* Sub-sample the source image instead, so that U and V
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* sub-sampling does not require proper
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* filtering/averaging/siting.
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*/
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argb = *(rgb_row + x / 2 * 2);
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/*
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* A stupid way of "sub-sampling" chroma. This does not
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* do the necessary filtering/averaging/siting.
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*/
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if ((y & 1) == 0 && (x & 1) == 0) {
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x8r8g8b8_to_ycbcr8_bt601(argb, y_row + x,
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&cb, &cr);
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*(uv_row + x / 2) = ((uint16_t)cr << 8) | cb;
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} else {
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x8r8g8b8_to_ycbcr8_bt601(argb, y_row + x,
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NULL, NULL);
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}
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}
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}
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return buf;
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}
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/*
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* Packed YCbCr
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*
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* [31:0] Cr0:Y1:Cb0:Y0 8:8:8:8 little endian
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* 2x1 subsampled Cr:Cb plane
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*/
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static struct yuv_buffer *
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yuyv_create_buffer(struct client *client,
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uint32_t drm_format,
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pixman_image_t *rgb_image)
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{
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struct yuv_buffer *buf;
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size_t bytes;
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int width;
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int height;
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int x, y;
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void *rgb_pixels;
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int rgb_stride_bytes;
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uint32_t *rgb_row;
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uint32_t *yuv_base;
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uint32_t *yuv_row;
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uint8_t cr;
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uint8_t cb;
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uint8_t y0;
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assert(drm_format == DRM_FORMAT_YUYV);
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width = pixman_image_get_width(rgb_image);
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height = pixman_image_get_height(rgb_image);
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rgb_pixels = pixman_image_get_data(rgb_image);
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rgb_stride_bytes = pixman_image_get_stride(rgb_image);
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/* Full size Y, horizontally subsampled UV, 2 pixels in 32 bits */
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bytes = width / 2 * height * sizeof(uint32_t);
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buf = yuv_buffer_create(client, bytes, width, height, width / 2 * sizeof(uint32_t), drm_format);
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yuv_base = buf->data;
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for (y = 0; y < height; y++) {
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rgb_row = rgb_pixels + (y / 2 * 2) * rgb_stride_bytes;
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yuv_row = yuv_base + y * (width / 2);
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for (x = 0; x < width; x += 2) {
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/*
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* Sub-sample the source image instead, so that U and V
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* sub-sampling does not require proper
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* filtering/averaging/siting.
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*/
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x8r8g8b8_to_ycbcr8_bt601(*(rgb_row + x), &y0, &cb, &cr);
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*(yuv_row + x / 2) =
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((uint32_t)cr << 24) |
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((uint32_t)y0 << 16) |
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((uint32_t)cb << 8) |
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((uint32_t)y0 << 0);
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}
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}
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return buf;
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}
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2021-02-05 17:30:22 +03:00
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/*
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* Packed YCbCr
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*
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* [31:0] X:Y:Cb:Cr 8:8:8:8 little endian
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* full resolution chroma
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*/
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static struct yuv_buffer *
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xyuv8888_create_buffer(struct client *client,
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uint32_t drm_format,
|
|
|
|
pixman_image_t *rgb_image)
|
|
|
|
{
|
|
|
|
struct yuv_buffer *buf;
|
|
|
|
size_t bytes;
|
|
|
|
int width;
|
|
|
|
int height;
|
|
|
|
int x, y;
|
|
|
|
void *rgb_pixels;
|
|
|
|
int rgb_stride_bytes;
|
|
|
|
uint32_t *rgb_row;
|
|
|
|
uint32_t *yuv_base;
|
|
|
|
uint32_t *yuv_row;
|
|
|
|
uint8_t cr;
|
|
|
|
uint8_t cb;
|
|
|
|
uint8_t y0;
|
|
|
|
|
|
|
|
assert(drm_format == DRM_FORMAT_XYUV8888);
|
|
|
|
|
|
|
|
width = pixman_image_get_width(rgb_image);
|
|
|
|
height = pixman_image_get_height(rgb_image);
|
|
|
|
rgb_pixels = pixman_image_get_data(rgb_image);
|
|
|
|
rgb_stride_bytes = pixman_image_get_stride(rgb_image);
|
|
|
|
|
|
|
|
/* Full size, 32 bits per pixel */
|
|
|
|
bytes = width * height * sizeof(uint32_t);
|
|
|
|
buf = yuv_buffer_create(client, bytes, width, height, width * sizeof(uint32_t), drm_format);
|
|
|
|
|
|
|
|
yuv_base = buf->data;
|
|
|
|
|
|
|
|
for (y = 0; y < height; y++) {
|
|
|
|
rgb_row = rgb_pixels + (y / 2 * 2) * rgb_stride_bytes;
|
|
|
|
yuv_row = yuv_base + y * width;
|
|
|
|
|
|
|
|
for (x = 0; x < width; x++) {
|
|
|
|
/*
|
|
|
|
* 2x2 sub-sample the source image to get the same
|
|
|
|
* result as the other YUV variants, so we can use the
|
|
|
|
* same reference image for checking.
|
|
|
|
*/
|
|
|
|
x8r8g8b8_to_ycbcr8_bt601(*(rgb_row + x / 2 * 2), &y0, &cb, &cr);
|
|
|
|
/*
|
|
|
|
* The unused byte is intentionally set to "garbage"
|
|
|
|
* to catch any accidental use of it in the compositor.
|
|
|
|
*/
|
|
|
|
*(yuv_row + x) =
|
|
|
|
((uint32_t)x << 24) |
|
|
|
|
((uint32_t)y0 << 16) |
|
|
|
|
((uint32_t)cb << 8) |
|
|
|
|
((uint32_t)cr << 0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return buf;
|
|
|
|
}
|
|
|
|
|
2020-12-09 16:14:11 +03:00
|
|
|
static void
|
|
|
|
show_window_with_yuv(struct client *client, struct yuv_buffer *buf)
|
|
|
|
{
|
|
|
|
struct surface *surface = client->surface;
|
|
|
|
int done;
|
|
|
|
|
|
|
|
weston_test_move_surface(client->test->weston_test, surface->wl_surface,
|
|
|
|
4, 4);
|
|
|
|
wl_surface_attach(surface->wl_surface, buf->proxy, 0, 0);
|
|
|
|
wl_surface_damage(surface->wl_surface, 0, 0, buf->width,
|
|
|
|
buf->height);
|
|
|
|
frame_callback_set(surface->wl_surface, &done);
|
|
|
|
wl_surface_commit(surface->wl_surface);
|
|
|
|
frame_callback_wait(client, &done);
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct yuv_case yuv_cases[] = {
|
|
|
|
#define FMT(x) DRM_FORMAT_ ##x, #x
|
|
|
|
{ FMT(YUV420), yuv420_create_buffer },
|
|
|
|
{ FMT(NV12), nv12_create_buffer },
|
|
|
|
{ FMT(YUYV), yuyv_create_buffer },
|
2021-02-05 17:30:22 +03:00
|
|
|
{ FMT(XYUV8888), xyuv8888_create_buffer },
|
2020-12-09 16:14:11 +03:00
|
|
|
#undef FMT
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Test that various YUV pixel formats result in correct coloring on screen.
|
|
|
|
*/
|
|
|
|
TEST_P(yuv_buffer_shm, yuv_cases)
|
|
|
|
{
|
|
|
|
const struct yuv_case *my_case = data;
|
|
|
|
char *fname;
|
|
|
|
pixman_image_t *img;
|
|
|
|
struct client *client;
|
|
|
|
struct yuv_buffer *buf;
|
|
|
|
bool match;
|
|
|
|
|
|
|
|
testlog("%s: format %s\n", get_test_name(), my_case->drm_format_name);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This test image is 256 x 256 pixels.
|
|
|
|
*
|
|
|
|
* Therefore this test does NOT exercise:
|
|
|
|
* - odd image dimensions
|
|
|
|
* - non-square image
|
|
|
|
* - row padding
|
|
|
|
* - unaligned row stride
|
|
|
|
* - different alignments or padding in sub-sampled planes
|
|
|
|
*
|
|
|
|
* The reason to not test these is that GL-renderer seems to be more
|
|
|
|
* or less broken.
|
|
|
|
*
|
|
|
|
* The source image is effectively further downscaled to 128 x 128
|
|
|
|
* before sampled and converted to 256 x 256 YUV, so that
|
|
|
|
* sub-sampling for U and V does not require proper algorithms.
|
|
|
|
* Therefore, this test also does not test:
|
|
|
|
* - chroma siting (chroma sample positioning)
|
|
|
|
*/
|
|
|
|
fname = image_filename("chocolate-cake");
|
|
|
|
img = load_image_from_png(fname);
|
|
|
|
free(fname);
|
|
|
|
assert(img);
|
|
|
|
|
|
|
|
client = create_client();
|
|
|
|
client->surface = create_test_surface(client);
|
|
|
|
buf = my_case->create_buffer(client, my_case->drm_format, img);
|
|
|
|
show_window_with_yuv(client, buf);
|
|
|
|
|
|
|
|
match = verify_screen_content(client, "yuv-buffer", 0, NULL, 0);
|
|
|
|
assert(match);
|
|
|
|
|
|
|
|
yuv_buffer_destroy(buf);
|
2021-06-18 13:13:01 +03:00
|
|
|
pixman_image_unref(img);
|
2020-12-09 16:14:11 +03:00
|
|
|
client_destroy(client);
|
|
|
|
}
|