dd49eccb50
This change allows draw_bitmap to draw an image outside the canvas with the original size if the scale parameter is zero. This is used for example when drawing a splash screen which has to be positioned at a pixel perfect location. BUG=none BRANCH=master TEST=Draw pictures and boxes on Samus and Ryu Change-Id: Ia2d8799184d1aa192e2c50850e248bee8f234006 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Original-Commit-Id: 45d4717fe5c3e3554bd79b63ade490d88cf00bbe Original-Change-Id: I48aa21122cfc2ee43bcb1b8f87b00c66abdc230e Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/295961 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11923 Tested-by: build bot (Jenkins)
109 lines
2.5 KiB
C
109 lines
2.5 KiB
C
/*
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* This file is part of the libpayload project.
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*
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* Copyright (C) 2015 Google, Inc.
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*/
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#include <libpayload.h>
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#include <arch/types.h>
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#include <stddef.h>
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/*
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* API error codes
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*/
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#define CBGFX_SUCCESS 0
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/* unknown error */
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#define CBGFX_ERROR_UNKNOWN 1
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/* failed to initialize cbgfx library */
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#define CBGFX_ERROR_INIT 2
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/* drawing beyond screen boundary */
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#define CBGFX_ERROR_SCREEN_BOUNDARY 3
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/* drawing beyond canvas boundary */
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#define CBGFX_ERROR_CANVAS_BOUNDARY 4
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/* bitmap error: signature mismatch */
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#define CBGFX_ERROR_BITMAP_SIGNATURE 0x10
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/* bitmap error: unsupported format */
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#define CBGFX_ERROR_BITMAP_FORMAT 0x11
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/* bitmap error: invalid data */
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#define CBGFX_ERROR_BITMAP_DATA 0x12
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/* bitmap error: scaling out of range */
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#define CBGFX_ERROR_SCALE_OUT_OF_RANGE 0x13
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struct fraction {
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int32_t nume;
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int32_t deno;
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};
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struct scale {
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struct fraction x;
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struct fraction y;
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};
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struct vector {
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union {
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int32_t x;
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int32_t width;
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};
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union {
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int32_t y;
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int32_t height;
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};
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};
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struct rect {
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struct vector offset;
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struct vector size;
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};
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struct rgb_color {
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uint8_t red;
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uint8_t green;
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uint8_t blue;
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};
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/*
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* Resolution of scale parameters used to describe height, width, coordinate,
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* etc. relative to the canvas. For example, if it's 100, scales range from 0 to
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* 100%.
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*/
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#define CANVAS_SCALE 100
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/*
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* The coordinate system is expected to have (0, 0) at top left corner with
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* y values increasing towards bottom of screen.
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*/
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/*
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* draw a box filled with a color on screen
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*
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* box: .offset points the coordinate of the top left corner and .size specifies
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* width and height of the box. Both are relative to the canvas size thus scale
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* from 0 to CANVAS_SCALE (0 to 100%).
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* rgb: RGB color of the box.
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*
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* return: CBGFX_* error codes
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*/
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int draw_box(const struct rect *box, const struct rgb_color *rgb);
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/*
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* Clear the canvas
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*/
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int clear_canvas(struct rgb_color *rgb);
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/*
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* Draw a bitmap image on screen.
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*
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* top_left_rel: coordinate of the top left corner of the image relative to the
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* canvas (0 - CANVAS_SCALE). If scale_rel is zero, this is treated as absolute
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* coordinate.
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* scale_rel: scale factor relative to the canvas width (0 - CANVAS_SCALE). If
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* this is zero, scaling is turned off and the image is rendered with the
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* original size.
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* bitmap: pointer to the bitmap data, starting from the file header.
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* size: size of the bitmap data
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*
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* return: CBGFX_* error codes
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*/
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int draw_bitmap(const struct vector *top_left_rel,
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size_t scale_rel, const void *bitmap, size_t size);
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