term: Reimplement context control
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@ -11,26 +11,7 @@
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#include <lib/term.h>
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#include <mm/pmm.h>
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struct textmode_context {
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struct term_context term;
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volatile uint8_t *video_mem;
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uint8_t *back_buffer;
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uint8_t *front_buffer;
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size_t cursor_offset;
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size_t old_cursor_offset;
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bool cursor_status;
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uint8_t text_palette;
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uint8_t saved_state_text_palette;
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size_t saved_state_cursor_offset;
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};
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#define VIDEO_BOTTOM ((VD_ROWS * VD_COLS) - 1)
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#define VD_COLS (80 * 2)
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#define VD_ROWS 25
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static void draw_cursor(struct textmode_context *ctx) {
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uint8_t pal = ctx->back_buffer[ctx->cursor_offset + 1];
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@ -3,7 +3,30 @@
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#if defined (BIOS)
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#include <stdint.h>
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#include <stddef.h>
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#include <stdbool.h>
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#include <term/term.h>
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#define VD_COLS (80 * 2)
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#define VD_ROWS 25
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struct textmode_context {
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struct term_context term;
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volatile uint8_t *video_mem;
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uint8_t *back_buffer;
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uint8_t *front_buffer;
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size_t cursor_offset;
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size_t old_cursor_offset;
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bool cursor_status;
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uint8_t text_palette;
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uint8_t saved_state_text_palette;
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size_t saved_state_cursor_offset;
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};
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void vga_textmode_init(bool managed);
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@ -6,6 +6,8 @@
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#include <lib/misc.h>
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#include <lib/print.h>
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#include <mm/pmm.h>
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#include <drivers/vga_textmode.h>
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#include <term/backends/framebuffer.h>
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int current_video_mode = -1;
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int term_backend = _NOT_READY;
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@ -263,19 +265,104 @@ extern void set_cursor_pos_helper(size_t x, size_t y);
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static uint8_t xfer_buf[TERM_XFER_CHUNK];
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#endif
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static uint64_t context_size(void) {
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switch (term_backend) {
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case TEXTMODE:
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return sizeof(struct textmode_context) + (VD_ROWS * VD_COLS) * 2;
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case GTERM: {
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struct fbterm_context *ctx = (void *)term;
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return sizeof(struct fbterm_context) +
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ctx->font_bits_size +
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ctx->font_bool_size +
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ctx->canvas_size +
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ctx->grid_size +
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ctx->queue_size +
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ctx->map_size;
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}
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default:
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return 0;
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}
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}
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static void context_save(uint64_t buf) {
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switch (term_backend) {
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case TEXTMODE: {
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struct textmode_context *ctx = (void *)term;
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memcpy32to64(buf, (uintptr_t)ctx, sizeof(struct textmode_context));
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buf += sizeof(struct textmode_context);
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memcpy32to64(buf, (uintptr_t)ctx->back_buffer, VD_ROWS * VD_COLS);
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buf += VD_ROWS * VD_COLS;
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memcpy32to64(buf, (uintptr_t)ctx->front_buffer, VD_ROWS * VD_COLS);
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buf += VD_ROWS * VD_COLS;
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break;
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}
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case GTERM: {
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struct fbterm_context *ctx = (void *)term;
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memcpy32to64(buf, (uintptr_t)ctx, sizeof(struct fbterm_context));
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buf += sizeof(struct fbterm_context);
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memcpy32to64(buf, (uintptr_t)ctx->font_bits, ctx->font_bits_size);
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buf += ctx->font_bits_size;
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memcpy32to64(buf, (uintptr_t)ctx->font_bool, ctx->font_bool_size);
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buf += ctx->font_bool_size;
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memcpy32to64(buf, (uintptr_t)ctx->canvas, ctx->canvas_size);
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buf += ctx->canvas_size;
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memcpy32to64(buf, (uintptr_t)ctx->grid, ctx->grid_size);
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buf += ctx->grid_size;
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memcpy32to64(buf, (uintptr_t)ctx->queue, ctx->queue_size);
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buf += ctx->queue_size;
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memcpy32to64(buf, (uintptr_t)ctx->map, ctx->map_size);
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buf += ctx->map_size;
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break;
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}
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}
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}
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static void context_restore(uint64_t buf) {
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switch (term_backend) {
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case TEXTMODE: {
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struct textmode_context *ctx = (void *)term;
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memcpy32to64((uintptr_t)ctx, buf, sizeof(struct textmode_context));
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buf += sizeof(struct textmode_context);
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memcpy32to64((uintptr_t)ctx->back_buffer, buf, VD_ROWS * VD_COLS);
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buf += VD_ROWS * VD_COLS;
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memcpy32to64((uintptr_t)ctx->front_buffer, buf, VD_ROWS * VD_COLS);
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buf += VD_ROWS * VD_COLS;
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break;
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}
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case GTERM: {
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struct fbterm_context *ctx = (void *)term;
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memcpy32to64((uintptr_t)ctx, buf, sizeof(struct fbterm_context));
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buf += sizeof(struct fbterm_context);
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memcpy32to64((uintptr_t)ctx->font_bits, buf, ctx->font_bits_size);
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buf += ctx->font_bits_size;
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memcpy32to64((uintptr_t)ctx->font_bool, buf, ctx->font_bool_size);
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buf += ctx->font_bool_size;
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memcpy32to64((uintptr_t)ctx->canvas, buf, ctx->canvas_size);
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buf += ctx->canvas_size;
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memcpy32to64((uintptr_t)ctx->grid, buf, ctx->grid_size);
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buf += ctx->grid_size;
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memcpy32to64((uintptr_t)ctx->queue, buf, ctx->queue_size);
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buf += ctx->queue_size;
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memcpy32to64((uintptr_t)ctx->map, buf, ctx->map_size);
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buf += ctx->map_size;
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break;
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}
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}
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}
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void _term_write(uint64_t buf, uint64_t count) {
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switch (count) {
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case TERM_CTX_SIZE: {
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//uint64_t ret = context_size();
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//memcpy32to64(buf, (uint64_t)(uintptr_t)&ret, sizeof(uint64_t));
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uint64_t ret = context_size();
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memcpy32to64(buf, (uint64_t)(uintptr_t)&ret, sizeof(uint64_t));
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return;
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}
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case TERM_CTX_SAVE: {
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//context_save(buf);
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context_save(buf);
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return;
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}
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case TERM_CTX_RESTORE: {
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//context_restore(buf);
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context_restore(buf);
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return;
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}
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case TERM_FULL_REFRESH: {
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