mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-27 01:48:17 +00:00
84 lines
3.4 KiB
C
84 lines
3.4 KiB
C
/*
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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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#include "buffers.h"
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#include "common.h"
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#include "fonts/fonts.h"
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#include "memzero.h"
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const int32_t text_buffer_height = FONT_MAX_HEIGHT;
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const int32_t buffer_width = DISPLAY_RESX;
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#define CONCAT_(a, b) a##b
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#define CONCAT(a, b) CONCAT_(a, b)
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#define CONCAT3_(a, b, c) a##b##c
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#define CONCAT3(a, b, c) CONCAT3_(a, b, c)
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#define STRUCT(name) CONCAT3(buffers_, name, _t)
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#define TYPE(name) CONCAT3(buffer_, name, _t)
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#define FUNCTION(name) CONCAT(buffers_get_, name)
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#define FUNCTION_FREE(name) CONCAT(buffers_free_, name)
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#define VARNAME(name) CONCAT(buffers_, name)
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#define BUFFER(section, name, count) \
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typedef struct { \
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TYPE(name) buffers[count]; \
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uint8_t allocated[count]; \
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} STRUCT(name); \
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section STRUCT(name) VARNAME(name); \
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\
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TYPE(name) * FUNCTION(name)(bool clear) { \
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int idx = -1; \
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for (int i = 0; i < (count); i++) { \
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if (VARNAME(name).allocated[i] == 0) { \
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idx = i; \
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break; \
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} \
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} \
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if (idx < 0) { \
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return NULL; \
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} \
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if (clear) { \
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memzero(&VARNAME(name).buffers[idx], \
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sizeof(VARNAME(name).buffers[idx])); \
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} \
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VARNAME(name).allocated[idx] = 1; \
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return &VARNAME(name).buffers[idx]; \
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} \
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void FUNCTION_FREE(name)(TYPE(name) * buffer) { \
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if (buffer == NULL) { \
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return; \
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} \
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for (uint16_t i = 0; i < (count); i++) { \
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if (buffer == &VARNAME(name).buffers[i]) { \
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VARNAME(name).allocated[i] = 0; \
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return; \
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} \
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} \
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}
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BUFFER(BUFFER_SECTION, line_16bpp, 3);
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BUFFER(BUFFER_SECTION, line_4bpp, 3);
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BUFFER(BUFFER_SECTION, text, 1);
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BUFFER(NODMA_BUFFER_SECTION, jpeg, 1);
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BUFFER(NODMA_BUFFER_SECTION, jpeg_work, 1);
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BUFFER(NODMA_BUFFER_SECTION, blurring, 1);
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BUFFER(NODMA_BUFFER_SECTION, blurring_totals, 1);
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