mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-20 21:38:26 +00:00
83 lines
3.3 KiB
C
83 lines
3.3 KiB
C
/*
|
|
* This file is part of the Trezor project, https://trezor.io/
|
|
*
|
|
* Copyright (c) SatoshiLabs
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "buffers.h"
|
|
#include "common.h"
|
|
#include "fonts/fonts.h"
|
|
#include "memzero.h"
|
|
|
|
const int32_t text_buffer_height = FONT_MAX_HEIGHT;
|
|
const int32_t buffer_width = DISPLAY_RESX;
|
|
|
|
#define CONCAT_(a, b) a##b
|
|
#define CONCAT(a, b) CONCAT_(a, b)
|
|
|
|
#define CONCAT3_(a, b, c) a##b##c
|
|
#define CONCAT3(a, b, c) CONCAT3_(a, b, c)
|
|
|
|
#define STRUCT(name) CONCAT3(buffers_, name, _t)
|
|
#define TYPE(name) CONCAT3(buffer_, name, _t)
|
|
#define FUNCTION(name) CONCAT(buffers_get_, name)
|
|
#define FUNCTION_FREE(name) CONCAT(buffers_free_, name)
|
|
#define VARNAME(name) CONCAT(buffers_, name)
|
|
|
|
#define BUFFER(section, name, count) \
|
|
typedef struct { \
|
|
TYPE(name) buffers[count]; \
|
|
uint8_t allocated[count]; \
|
|
} STRUCT(name); \
|
|
section STRUCT(name) VARNAME(name); \
|
|
\
|
|
TYPE(name) * FUNCTION(name)(bool clear) { \
|
|
int idx = -1; \
|
|
for (int i = 0; i < (count); i++) { \
|
|
if (VARNAME(name).allocated[i] == 0) { \
|
|
idx = i; \
|
|
break; \
|
|
} \
|
|
} \
|
|
if (idx < 0) { \
|
|
return NULL; \
|
|
} \
|
|
if (clear) { \
|
|
memzero(&VARNAME(name).buffers[idx], \
|
|
sizeof(VARNAME(name).buffers[idx])); \
|
|
} \
|
|
VARNAME(name).allocated[idx] = 1; \
|
|
return &VARNAME(name).buffers[idx]; \
|
|
} \
|
|
void FUNCTION_FREE(name)(TYPE(name) * buffer) { \
|
|
if (buffer == NULL) { \
|
|
return; \
|
|
} \
|
|
for (uint16_t i = 0; i < (count); i++) { \
|
|
if (buffer == &VARNAME(name).buffers[i]) { \
|
|
VARNAME(name).allocated[i] = 0; \
|
|
return; \
|
|
} \
|
|
} \
|
|
}
|
|
|
|
BUFFER(BUFFER_SECTION, line_16bpp, 3);
|
|
BUFFER(BUFFER_SECTION, line_4bpp, 3);
|
|
BUFFER(BUFFER_SECTION, text, 1);
|
|
BUFFER(NODMA_BUFFER_SECTION, jpeg, 1);
|
|
BUFFER(NODMA_BUFFER_SECTION, jpeg_work, 1);
|
|
BUFFER(NODMA_BUFFER_SECTION, blurring, 1);
|