3f66398ef8
This change introduces cbgfx, a graphics library, which provides APIs for drawing basic shapes, texts, graphic data, etc. on a screen. BUG=chrome-os-partner:43444 BRANCH=tot TEST=Drew boxes by draw command of depthcharge cli on Samus Change-Id: I6019e5998e65dca3ab4785a90669b5db02463d2e Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Original-Commit-Id: 5b3ebce8eae91be742e4f977d3407d24e1537580 Original-Reviewed-on: https://chromium-review.googlesource.com/290301 Original-Reviewed-by: Stefan Reinauer <reinauer@google.com> Original-Change-Id: I10db27715cb907bdc451a33ed99d257e3af241b7 Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/291065 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11408 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
66 lines
1.3 KiB
C
66 lines
1.3 KiB
C
/*
|
|
* This file is part of the libpayload project.
|
|
*
|
|
* Copyright (C) 2015 Google, Inc.
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
|
|
/*
|
|
* API error codes
|
|
*/
|
|
#define CBGFX_SUCCESS 0
|
|
/* unknown error */
|
|
#define CBGFX_ERROR_UNKNOWN 1
|
|
/* failed to initialize cbgfx library */
|
|
#define CBGFX_ERROR_INIT 2
|
|
/* drawing beyond canvas boundary */
|
|
#define CBGFX_ERROR_BOUNDARY 3
|
|
|
|
struct vector {
|
|
union {
|
|
uint32_t x;
|
|
uint32_t width;
|
|
};
|
|
union {
|
|
uint32_t y;
|
|
uint32_t height;
|
|
};
|
|
};
|
|
|
|
struct rgb_color {
|
|
uint8_t red;
|
|
uint8_t green;
|
|
uint8_t blue;
|
|
};
|
|
|
|
/*
|
|
* Resolution of scale parameters used to describe height, width, coordinate,
|
|
* etc. relative to the canvas. For example, if it's 100, scales range from 0 to
|
|
* 100%.
|
|
*/
|
|
#define CANVAS_SCALE 100
|
|
|
|
/*
|
|
* The coordinate system is expected to have (0, 0) at top left corner with
|
|
* y values increasing towards bottom of screen.
|
|
*/
|
|
|
|
/*
|
|
* draw a box filled with a color on screen
|
|
*
|
|
* top_left_rel: coordinate of top left corner of the box, relative to canvas.
|
|
* (0 - CANVAS_SCALE).
|
|
* size_rel: width and height of the box, relative to canvas. (0 - CANVAS_SCALE)
|
|
* rgb: RGB color of the box.
|
|
*
|
|
* return: CBGFX_* error codes
|
|
*/
|
|
int draw_box(const struct vector *top_left_rel,
|
|
const struct vector *size_rel,
|
|
const struct rgb_color *rgb);
|
|
|
|
/*
|
|
* Clear the canvas
|
|
*/
|
|
int clear_canvas(struct rgb_color *rgb);
|