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107 lines
3.1 KiB
107 lines
3.1 KiB
3 months ago
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/*
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* This file is part of the Trezor project, https://trezor.io/
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*
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* Copyright (c) SatoshiLabs
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GDC_BITMAP_H
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#define GDC_BITMAP_H
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#include "gdc_color.h"
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#include "gdc_geom.h"
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#include <stddef.h>
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#include <stdint.h>
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// forward declaration
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typedef struct gdc_vmt gdc_vmt_t;
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// ------------------------------------------------------------------------
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// GDC Bitmap pixel format
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//
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typedef enum {
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GDC_FORMAT_UNKNOWN, //
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GDC_FORMAT_MONO1, // 1-bpp per pixel
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GDC_FORMAT_MONO4, // 4-bpp per pixel
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GDC_FORMAT_RGB565, // 16-bpp per pixel
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GDC_FORMAT_RGBA8888, // 32-bpp
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} gdc_format_t;
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// ------------------------------------------------------------------------
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// GDC Bitmap Attributes
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//
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#define GDC_BITMAP_READ_ONLY 0x01 // Read-only data
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// #define GDC_BITMAP_DMA_READ 0x02 // DMA read pending
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// #define GDC_BITMAP_DMA_WRITE 0x04 // DMA write pending
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// ------------------------------------------------------------------------
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// GDC Bitmap
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//
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// Structure holding pointer to the bitmap data, its format and sizes
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//
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// Note: gdc_bitmap_t itself can be used as GDC as long as it contains
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// valid gdc virtual table pointer.
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typedef struct gdc_bitmap {
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// GDC virtual method table
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// (must be the first field of the structure)
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const gdc_vmt_t* vmt;
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// pointer to top-left pixel
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void* ptr;
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// stride in bytes
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size_t stride;
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// size in pixels
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gdc_size_t size;
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// format of pixels, GDC_FORMAT_xxx
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uint8_t format;
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// attributes, GDC_BITMAP_xxx
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uint8_t attrs;
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} gdc_bitmap_t;
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// Initializes RGB565 bitmap structure
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// GDC and format fields and filled automatically.
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gdc_bitmap_t gdc_bitmap_rgb565(void* data_ptr, size_t stride, gdc_size_t size,
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uint8_t attrs);
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// Initializes RGBA8888 bitmap structure
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// GDC and format fields and filled automatically.
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gdc_bitmap_t gdc_bitmap_rgba8888(void* data_ptr, size_t stride, gdc_size_t size,
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uint8_t attrs);
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// ------------------------------------------------------------------------
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// GDC Bitmap reference
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//
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// Structure is used when bitmap is beeing drawed to supply
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// additional parameters
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typedef struct {
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// soruce bitmap
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const gdc_bitmap_t* bitmap;
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// offset used when bitmap is drawed on gdc
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gdc_offset_t offset;
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// foreground color (used with MONOx formats)
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gdc_color_t fg_color;
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// background color (used with MONOx formats)
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gdc_color_t bg_color;
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} gdc_bitmap_ref_t;
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#endif // GDC_BITMAP_H
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