mirror of
https://codeberg.org/dnkl/foot.git
synced 2026-02-05 04:06:08 -05:00
5a07419096
This adds a flag, -p,--presentation-timings, that enables input lag measuring using the presentation time Wayland protocol. When enabled, we store a timestamp when we *send* a key to the slave. Then, when we commit a frame for rendering to the compositor, we request presentation feedback. We also store a timestamp for when the frame was committed. The 'presented' callback then looks at the input and commit timestamps, and compares it with the presented timestamp. The delay is logged at INFO when the delay was less than one frame interval, at WARN when it was one frame interval, and at ERR when it was two or more frame intervals. We also update statistic counters that we log when foot is shut down.
1089 lines
35 KiB
C
1089 lines
35 KiB
C
#include "render.h"
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#include <string.h>
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#include <sys/ioctl.h>
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#include <sys/time.h>
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#include <sys/timerfd.h>
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#include <sys/prctl.h>
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#include <wayland-cursor.h>
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#include <xdg-shell.h>
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#include <presentation-time.h>
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#include <fcft/fcft.h>
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#define LOG_MODULE "render"
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#define LOG_ENABLE_DBG 0
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#include "log.h"
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#include "shm.h"
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#include "grid.h"
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#define min(x, y) ((x) < (y) ? (x) : (y))
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#define max(x, y) ((x) > (y) ? (x) : (y))
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static struct {
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size_t total;
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size_t zero; /* commits presented in less than one frame interval */
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size_t one; /* commits presented in one frame interval */
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size_t two; /* commits presented in two or more frame intervals */
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} presentation_statistics = {0};
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static void __attribute__((destructor))
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log_presentation_statistics(void)
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{
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if (presentation_statistics.total == 0)
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return;
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const size_t total = presentation_statistics.total;
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LOG_INFO("presentation statistics: zero=%f%%, one=%f%%, two=%f%%",
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100. * presentation_statistics.zero / total,
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100. * presentation_statistics.one / total,
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100. * presentation_statistics.two / total);
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}
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static void
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sync_output(void *data,
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struct wp_presentation_feedback *wp_presentation_feedback,
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struct wl_output *output)
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{
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}
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static void
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presented(void *data,
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struct wp_presentation_feedback *wp_presentation_feedback,
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uint32_t tv_sec_hi, uint32_t tv_sec_lo, uint32_t tv_nsec,
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uint32_t refresh, uint32_t seq_hi, uint32_t seq_lo, uint32_t flags)
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{
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struct terminal *term = data;
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struct timeval input = {
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.tv_sec = term->render.input_time.tv_sec,
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.tv_usec = term->render.input_time.tv_nsec / 1000,
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};
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struct timeval commit = {
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.tv_sec = term->render.commit_time.tv_sec,
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.tv_usec = term->render.commit_time.tv_nsec / 1000
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};
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struct timeval presented = {
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.tv_sec = (uint64_t)tv_sec_hi << 32 | tv_sec_lo,
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.tv_usec = tv_nsec / 1000,
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};
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struct timeval diff = {0};
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const char *source = NULL;
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if (input.tv_sec != 0 || input.tv_usec != 0) {
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timersub(&presented, &input, &diff);
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source = "input";
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} else if (commit.tv_sec != 0 || commit.tv_usec != 0) {
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timersub(&presented, &commit, &diff);
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source = "commit";
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}
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if (source != NULL) {
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unsigned frame_count = 0;
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if (diff.tv_sec == 0 && tll_length(term->window->on_outputs) > 0) {
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const struct monitor *mon = tll_front(term->window->on_outputs);
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frame_count = (double)diff.tv_usec / (1. / mon->refresh * 1000000.);
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}
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presentation_statistics.total++;
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if (frame_count >= 2)
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presentation_statistics.two++;
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else if (frame_count >= 1)
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presentation_statistics.one++;
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else
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presentation_statistics.zero++;
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#define _log_fmt "%s to screen time: %lus %luµs (more than %u frames)"
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if (frame_count >= 2)
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LOG_ERR(_log_fmt, source, diff.tv_sec, diff.tv_usec, frame_count);
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else if (frame_count >= 1)
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LOG_WARN(_log_fmt, source, diff.tv_sec, diff.tv_usec, frame_count);
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else
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LOG_INFO(_log_fmt, source, diff.tv_sec, diff.tv_usec, frame_count);
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#undef _log_fmt
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}
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wp_presentation_feedback_destroy(wp_presentation_feedback);
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memset(&term->render.input_time, 0, sizeof(term->render.input_time));
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memset(&term->render.commit_time, 0, sizeof(term->render.commit_time));
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}
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static void
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discarded(void *data, struct wp_presentation_feedback *wp_presentation_feedback)
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{
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wp_presentation_feedback_destroy(wp_presentation_feedback);
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}
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static const struct wp_presentation_feedback_listener presentation_feedback_listener = {
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.sync_output = &sync_output,
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.presented = &presented,
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.discarded = &discarded,
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};
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struct font *
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attrs_to_font(const struct terminal *term, const struct attributes *attrs)
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{
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int idx = attrs->italic << 1 | attrs->bold;
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return term->fonts[idx];
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}
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static inline struct rgb
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color_hex_to_rgb(uint32_t color)
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{
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return (struct rgb){
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((color >> 16) & 0xff) / 255.,
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((color >> 8) & 0xff) / 255.,
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((color >> 0) & 0xff) / 255.,
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};
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}
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static inline pixman_color_t
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color_hex_to_pixman_with_alpha(uint32_t color, uint16_t alpha)
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{
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int alpha_div = 0xffff / alpha;
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return (pixman_color_t){
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.red = ((color >> 16 & 0xff) | (color >> 8 & 0xff00)) / alpha_div,
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.green = ((color >> 8 & 0xff) | (color >> 0 & 0xff00)) / alpha_div,
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.blue = ((color >> 0 & 0xff) | (color << 8 & 0xff00)) / alpha_div,
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.alpha = alpha,
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};
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}
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static inline pixman_color_t
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color_hex_to_pixman(uint32_t color)
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{
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/* Count on the compiler optimizing this */
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return color_hex_to_pixman_with_alpha(color, 0xffff);
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}
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static inline void
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color_dim(struct rgb *rgb)
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{
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rgb->r /= 2.;
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rgb->g /= 2.;
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rgb->b /= 2.;
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}
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static inline void
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pixman_color_dim(pixman_color_t *color)
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{
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color->red /= 2;
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color->green /= 2;
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color->blue /= 2;
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}
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static inline void
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pixman_color_dim_for_search(pixman_color_t *color)
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{
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color->red /= 3;
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color->green /= 3;
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color->blue /= 3;
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}
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static inline int
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font_baseline(const struct terminal *term)
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{
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return term->fonts[0]->ascent;
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}
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static void
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draw_unfocused_block(const struct terminal *term, pixman_image_t *pix,
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const pixman_color_t *color, int x, int y, int cell_cols)
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{
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pixman_image_fill_rectangles(
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PIXMAN_OP_SRC, pix, color, 4,
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(pixman_rectangle16_t []){
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{x, y, cell_cols * term->cell_width, 1}, /* top */
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{x, y, 1, term->cell_height}, /* left */
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{x + cell_cols * term->cell_width - 1, y, 1, term->cell_height}, /* right */
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{x, y + term->cell_height - 1, cell_cols * term->cell_width, 1}, /* bottom */
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});
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}
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static void
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draw_bar(const struct terminal *term, pixman_image_t *pix,
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const struct font *font,
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const pixman_color_t *color, int x, int y)
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{
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int baseline = y + font_baseline(term) - term->fonts[0]->ascent;
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pixman_image_fill_rectangles(
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PIXMAN_OP_SRC, pix, color,
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1, &(pixman_rectangle16_t){
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x, baseline,
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font->underline.thickness, term->fonts[0]->ascent + term->fonts[0]->descent});
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}
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static void
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draw_underline(const struct terminal *term, pixman_image_t *pix,
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const struct font *font,
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const pixman_color_t *color, int x, int y, int cols)
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{
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pixman_image_fill_rectangles(
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PIXMAN_OP_SRC, pix, color,
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1, &(pixman_rectangle16_t){
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x, y + font_baseline(term) - font->underline.position,
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cols * term->cell_width, font->underline.thickness});
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}
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static void
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draw_strikeout(const struct terminal *term, pixman_image_t *pix,
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const struct font *font,
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const pixman_color_t *color, int x, int y, int cols)
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{
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pixman_image_fill_rectangles(
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PIXMAN_OP_SRC, pix, color,
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1, &(pixman_rectangle16_t){
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x, y + font_baseline(term) - font->strikeout.position,
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cols * term->cell_width, font->strikeout.thickness});
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}
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static void
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draw_cursor(const struct terminal *term, const struct cell *cell,
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bool is_selected, const struct font *font,
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pixman_image_t *pix, pixman_color_t *fg, const pixman_color_t *bg,
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int x, int y, int cols)
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{
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bool have_focus = term->wl->focused == term;
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pixman_color_t cursor_color;
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pixman_color_t text_color;
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if (term->cursor_color.cursor >> 31) {
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assert(term->cursor_color.text);
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cursor_color = color_hex_to_pixman(term->cursor_color.cursor);
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text_color = color_hex_to_pixman(term->cursor_color.text);
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if (term->reverse ^ cell->attrs.reverse ^ is_selected) {
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pixman_color_t swap = cursor_color;
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cursor_color = text_color;
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text_color = swap;
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}
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if (term->is_searching && !is_selected) {
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pixman_color_dim_for_search(&cursor_color);
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pixman_color_dim_for_search(&text_color);
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}
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} else {
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cursor_color = *fg;
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text_color = *bg;
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}
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switch (term->cursor_style) {
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case CURSOR_BLOCK:
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if (!have_focus)
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draw_unfocused_block(term, pix, &cursor_color, x, y, cols);
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else if (term->cursor_blink.state == CURSOR_BLINK_ON) {
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*fg = text_color;
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pixman_image_fill_rectangles(
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PIXMAN_OP_SRC, pix, &cursor_color, 1,
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&(pixman_rectangle16_t){x, y, cols * term->cell_width, term->cell_height});
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}
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break;
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case CURSOR_BAR:
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if (term->cursor_blink.state == CURSOR_BLINK_ON || !have_focus)
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draw_bar(term, pix, font, &cursor_color, x, y);
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break;
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case CURSOR_UNDERLINE:
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if (term->cursor_blink.state == CURSOR_BLINK_ON || !have_focus) {
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draw_underline(
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term, pix, attrs_to_font(term, &cell->attrs), &cursor_color,
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x, y, cols);
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}
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break;
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}
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}
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static bool
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coord_is_selected(const struct terminal *term, int col, int row)
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{
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if (term->selection.start.col == -1 || term->selection.end.col == -1)
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return false;
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const struct coord *start = &term->selection.start;
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const struct coord *end = &term->selection.end;
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if (start->row > end->row || (start->row == end->row && start->col > end->col)) {
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const struct coord *tmp = start;
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start = end;
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end = tmp;
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}
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assert(start->row <= end->row);
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row += term->grid->view;
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if (start->row == end->row) {
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return row == start->row && col >= start->col && col <= end->col;
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} else {
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if (row == start->row)
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return col >= start->col;
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else if (row == end->row)
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return col <= end->col;
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else
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return row >= start->row && row <= end->row;
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}
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}
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static int
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render_cell(struct terminal *term, pixman_image_t *pix,
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struct cell *cell, int col, int row, bool has_cursor)
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{
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if (cell->attrs.clean)
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return 0;
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cell->attrs.clean = 1;
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int width = term->cell_width;
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int height = term->cell_height;
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int x = term->x_margin + col * width;
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int y = term->y_margin + row * height;
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bool is_selected = coord_is_selected(term, col, row);
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uint32_t _fg = 0;
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uint32_t _bg = 0;
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/* Use cell specific color, if set, otherwise the default colors (possible reversed) */
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_fg = cell->attrs.have_fg ? cell->attrs.fg : term->colors.fg;
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_bg = cell->attrs.have_bg ? cell->attrs.bg : term->colors.bg;
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/* If *one* is set, we reverse */
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if (term->reverse ^ cell->attrs.reverse ^ is_selected) {
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uint32_t swap = _fg;
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_fg = _bg;
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_bg = swap;
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}
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if (cell->attrs.blink && term->blink.state == BLINK_OFF)
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_fg = _bg;
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pixman_color_t fg = color_hex_to_pixman(_fg);
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pixman_color_t bg = color_hex_to_pixman_with_alpha(_bg, term->colors.alpha);
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if (cell->attrs.dim)
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pixman_color_dim(&fg);
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if (term->is_searching && !is_selected) {
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pixman_color_dim_for_search(&fg);
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pixman_color_dim_for_search(&bg);
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}
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struct font *font = attrs_to_font(term, &cell->attrs);
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const struct glyph *glyph = font_glyph_for_wc(font, cell->wc);
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int cell_cols = glyph != NULL ? max(1, glyph->cols) : 1;
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/* Background */
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pixman_image_fill_rectangles(
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PIXMAN_OP_SRC, pix, &bg, 1,
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&(pixman_rectangle16_t){x, y, cell_cols * width, height});
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if (has_cursor) {
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draw_cursor(
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term, cell, is_selected, font, pix, &fg, &bg, x, y, cell_cols);
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}
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if (cell->attrs.blink)
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term_arm_blink_timer(term);
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if (cell->wc == 0 || cell->attrs.conceal)
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return cell_cols;
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if (glyph != NULL) {
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if (unlikely(pixman_image_get_format(glyph->pix) == PIXMAN_a8r8g8b8)) {
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/* Glyph surface is a pre-rendered image (typically a color emoji...) */
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if (!(cell->attrs.blink && term->blink.state == BLINK_OFF)) {
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pixman_image_composite32(
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PIXMAN_OP_OVER, glyph->pix, NULL, pix, 0, 0, 0, 0,
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x + glyph->x, y + font_baseline(term) - glyph->y,
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glyph->width, glyph->height);
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}
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} else {
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/* Glyph surface is an alpha mask */
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pixman_image_t *src = pixman_image_create_solid_fill(&fg);
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pixman_image_composite32(
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PIXMAN_OP_OVER, src, glyph->pix, pix, 0, 0, 0, 0,
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x + glyph->x, y + font_baseline(term) - glyph->y,
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glyph->width, glyph->height);
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pixman_image_unref(src);
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}
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}
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/* Underline */
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if (cell->attrs.underline) {
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draw_underline(term, pix, attrs_to_font(term, &cell->attrs),
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&fg, x, y, cell_cols);
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}
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if (cell->attrs.strikethrough) {
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draw_strikeout(term, pix, attrs_to_font(term, &cell->attrs),
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&fg, x, y, cell_cols);
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}
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return cell_cols;
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}
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static void
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grid_render_scroll(struct terminal *term, struct buffer *buf,
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const struct damage *dmg)
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{
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int dst_y = term->y_margin + (dmg->scroll.region.start + 0) * term->cell_height;
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int src_y = term->y_margin + (dmg->scroll.region.start + dmg->scroll.lines) * term->cell_height;
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int height = (dmg->scroll.region.end - dmg->scroll.region.start - dmg->scroll.lines) * term->cell_height;
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LOG_DBG("damage: SCROLL: %d-%d by %d lines (dst-y: %d, src-y: %d, "
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"height: %d, stride: %d, mmap-size: %zu)",
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dmg->scroll.region.start, dmg->scroll.region.end,
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dmg->scroll.lines,
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dst_y, src_y, height, buf->stride,
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buf->size);
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if (height > 0) {
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uint8_t *raw = buf->mmapped;
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memmove(raw + dst_y * buf->stride,
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raw + src_y * buf->stride,
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height * buf->stride);
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wl_surface_damage_buffer(
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term->window->surface, term->x_margin, dst_y, term->width - term->x_margin, height);
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}
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}
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static void
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grid_render_scroll_reverse(struct terminal *term, struct buffer *buf,
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const struct damage *dmg)
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{
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int src_y = term->y_margin + (dmg->scroll.region.start + 0) * term->cell_height;
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int dst_y = term->y_margin + (dmg->scroll.region.start + dmg->scroll.lines) * term->cell_height;
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int height = (dmg->scroll.region.end - dmg->scroll.region.start - dmg->scroll.lines) * term->cell_height;
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LOG_DBG("damage: SCROLL REVERSE: %d-%d by %d lines (dst-y: %d, src-y: %d, "
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"height: %d, stride: %d, mmap-size: %zu)",
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dmg->scroll.region.start, dmg->scroll.region.end,
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dmg->scroll.lines,
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dst_y, src_y, height, buf->stride,
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buf->size);
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|
|
if (height > 0) {
|
|
uint8_t *raw = buf->mmapped;
|
|
memmove(raw + dst_y * buf->stride,
|
|
raw + src_y * buf->stride,
|
|
height * buf->stride);
|
|
|
|
wl_surface_damage_buffer(
|
|
term->window->surface, term->x_margin, dst_y, term->width - term->x_margin, height);
|
|
}
|
|
}
|
|
|
|
static void
|
|
render_row(struct terminal *term, pixman_image_t *pix, struct row *row, int row_no)
|
|
{
|
|
for (int col = term->cols - 1; col >= 0; col--)
|
|
render_cell(term, pix, &row->cells[col], col, row_no, false);
|
|
}
|
|
|
|
int
|
|
render_worker_thread(void *_ctx)
|
|
{
|
|
struct render_worker_context *ctx = _ctx;
|
|
struct terminal *term = ctx->term;
|
|
const int my_id = ctx->my_id;
|
|
free(ctx);
|
|
|
|
char proc_title[16];
|
|
snprintf(proc_title, sizeof(proc_title), "foot:render:%d", my_id);
|
|
|
|
if (prctl(PR_SET_NAME, proc_title, 0, 0, 0) < 0)
|
|
LOG_ERRNO("render worker %d: failed to set process title", my_id);
|
|
|
|
sem_t *start = &term->render.workers.start;
|
|
sem_t *done = &term->render.workers.done;
|
|
mtx_t *lock = &term->render.workers.lock;
|
|
cnd_t *cond = &term->render.workers.cond;
|
|
|
|
while (true) {
|
|
sem_wait(start);
|
|
|
|
struct buffer *buf = term->render.workers.buf;
|
|
bool frame_done = false;
|
|
|
|
while (!frame_done) {
|
|
mtx_lock(lock);
|
|
while (tll_length(term->render.workers.queue) == 0)
|
|
cnd_wait(cond, lock);
|
|
|
|
int row_no = tll_pop_front(term->render.workers.queue);
|
|
mtx_unlock(lock);
|
|
|
|
switch (row_no) {
|
|
default:
|
|
assert(buf != NULL);
|
|
render_row(term, buf->pix, grid_row_in_view(term->grid, row_no), row_no);
|
|
break;
|
|
|
|
case -1:
|
|
frame_done = true;
|
|
sem_post(done);
|
|
break;
|
|
|
|
case -2:
|
|
return 0;
|
|
}
|
|
}
|
|
};
|
|
|
|
return -1;
|
|
}
|
|
|
|
static void frame_callback(
|
|
void *data, struct wl_callback *wl_callback, uint32_t callback_data);
|
|
|
|
static const struct wl_callback_listener frame_listener = {
|
|
.done = &frame_callback,
|
|
};
|
|
|
|
void
|
|
grid_render(struct terminal *term)
|
|
{
|
|
if (term->is_shutting_down)
|
|
return;
|
|
|
|
#define TIME_FRAME_RENDERING 0
|
|
|
|
#if TIME_FRAME_RENDERING
|
|
struct timeval start_time;
|
|
gettimeofday(&start_time, NULL);
|
|
#endif
|
|
|
|
assert(term->width > 0);
|
|
assert(term->height > 0);
|
|
|
|
unsigned long cookie = (uintptr_t)term;
|
|
struct buffer *buf = shm_get_buffer(
|
|
term->wl->shm, term->width, term->height, cookie);
|
|
|
|
wl_surface_attach(term->window->surface, buf->wl_buf, 0, 0);
|
|
|
|
pixman_image_t *pix = buf->pix;
|
|
|
|
/* If we resized the window, or is flashing, or just stopped flashing */
|
|
if (term->render.last_buf != buf ||
|
|
term->flash.active || term->render.was_flashing ||
|
|
term->is_searching != term->render.was_searching)
|
|
{
|
|
if (term->render.last_buf != NULL &&
|
|
term->render.last_buf->width == buf->width &&
|
|
term->render.last_buf->height == buf->height &&
|
|
!term->flash.active &&
|
|
!term->render.was_flashing &&
|
|
term->is_searching == term->render.was_searching)
|
|
{
|
|
static bool has_warned = false;
|
|
if (!has_warned) {
|
|
LOG_WARN("it appears your Wayland compositor does not support buffer re-use for SHM clients; expect lower performance.");
|
|
has_warned = true;
|
|
}
|
|
|
|
assert(term->render.last_buf->size == buf->size);
|
|
memcpy(buf->mmapped, term->render.last_buf->mmapped, buf->size);
|
|
}
|
|
|
|
else {
|
|
/* Fill area outside the cell grid with the default background color */
|
|
int rmargin = term->x_margin + term->cols * term->cell_width;
|
|
int bmargin = term->y_margin + term->rows * term->cell_height;
|
|
int rmargin_width = term->width - rmargin;
|
|
int bmargin_height = term->height - bmargin;
|
|
|
|
uint32_t _bg = !term->reverse ? term->colors.bg : term->colors.fg;
|
|
pixman_color_t bg = color_hex_to_pixman_with_alpha(_bg, term->colors.alpha);
|
|
if (term->is_searching)
|
|
pixman_color_dim(&bg);
|
|
|
|
pixman_image_fill_rectangles(
|
|
PIXMAN_OP_SRC, pix, &bg, 4,
|
|
(pixman_rectangle16_t[]){
|
|
{0, 0, term->width, term->y_margin}, /* Top */
|
|
{0, 0, term->x_margin, term->height}, /* Left */
|
|
{rmargin, 0, rmargin_width, term->height}, /* Right */
|
|
{0, bmargin, term->width, bmargin_height}}); /* Bottom */
|
|
|
|
wl_surface_damage_buffer(
|
|
term->window->surface, 0, 0, term->width, term->y_margin);
|
|
wl_surface_damage_buffer(
|
|
term->window->surface, 0, 0, term->x_margin, term->height);
|
|
wl_surface_damage_buffer(
|
|
term->window->surface, rmargin, 0, rmargin_width, term->height);
|
|
wl_surface_damage_buffer(
|
|
term->window->surface, 0, bmargin, term->width, bmargin_height);
|
|
|
|
/* Force a full grid refresh */
|
|
term_damage_view(term);
|
|
}
|
|
|
|
term->render.last_buf = buf;
|
|
term->render.was_flashing = term->flash.active;
|
|
term->render.was_searching = term->is_searching;
|
|
}
|
|
|
|
/* Erase old cursor (if we rendered a cursor last time) */
|
|
if (term->render.last_cursor.cell != NULL) {
|
|
|
|
struct cell *cell = term->render.last_cursor.cell;
|
|
struct coord at = term->render.last_cursor.in_view;
|
|
term->render.last_cursor.cell = NULL;
|
|
|
|
/* If cell is already dirty, it will be rendered anyway */
|
|
if (cell->attrs.clean) {
|
|
cell->attrs.clean = 0;
|
|
int cols = render_cell(term, pix, cell, at.col, at.row, false);
|
|
|
|
wl_surface_damage_buffer(
|
|
term->window->surface,
|
|
term->x_margin + at.col * term->cell_width,
|
|
term->y_margin + at.row * term->cell_height,
|
|
cols * term->cell_width, term->cell_height);
|
|
}
|
|
}
|
|
|
|
tll_foreach(term->grid->scroll_damage, it) {
|
|
switch (it->item.type) {
|
|
case DAMAGE_SCROLL:
|
|
if (term->grid->view == term->grid->offset)
|
|
grid_render_scroll(term, buf, &it->item);
|
|
break;
|
|
|
|
case DAMAGE_SCROLL_REVERSE:
|
|
if (term->grid->view == term->grid->offset)
|
|
grid_render_scroll_reverse(term, buf, &it->item);
|
|
break;
|
|
|
|
case DAMAGE_SCROLL_IN_VIEW:
|
|
grid_render_scroll(term, buf, &it->item);
|
|
break;
|
|
|
|
case DAMAGE_SCROLL_REVERSE_IN_VIEW:
|
|
grid_render_scroll_reverse(term, buf, &it->item);
|
|
break;
|
|
}
|
|
|
|
tll_remove(term->grid->scroll_damage, it);
|
|
}
|
|
|
|
if (term->render.workers.count > 0) {
|
|
|
|
term->render.workers.buf = buf;
|
|
for (size_t i = 0; i < term->render.workers.count; i++)
|
|
sem_post(&term->render.workers.start);
|
|
|
|
assert(tll_length(term->render.workers.queue) == 0);
|
|
|
|
for (int r = 0; r < term->rows; r++) {
|
|
struct row *row = grid_row_in_view(term->grid, r);
|
|
|
|
if (!row->dirty)
|
|
continue;
|
|
|
|
mtx_lock(&term->render.workers.lock);
|
|
tll_push_back(term->render.workers.queue, r);
|
|
cnd_signal(&term->render.workers.cond);
|
|
mtx_unlock(&term->render.workers.lock);
|
|
|
|
row->dirty = false;
|
|
|
|
wl_surface_damage_buffer(
|
|
term->window->surface,
|
|
term->x_margin, term->y_margin + r * term->cell_height,
|
|
term->width - term->x_margin, term->cell_height);
|
|
}
|
|
|
|
mtx_lock(&term->render.workers.lock);
|
|
for (size_t i = 0; i < term->render.workers.count; i++)
|
|
tll_push_back(term->render.workers.queue, -1);
|
|
cnd_broadcast(&term->render.workers.cond);
|
|
mtx_unlock(&term->render.workers.lock);
|
|
} else {
|
|
for (int r = 0; r < term->rows; r++) {
|
|
struct row *row = grid_row_in_view(term->grid, r);
|
|
|
|
if (!row->dirty)
|
|
continue;
|
|
|
|
render_row(term, pix, row, r);
|
|
row->dirty = false;
|
|
|
|
wl_surface_damage_buffer(
|
|
term->window->surface,
|
|
term->x_margin, term->y_margin + r * term->cell_height,
|
|
term->width - term->x_margin, term->cell_height);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Determine if we need to render a cursor or not. The cursor
|
|
* could be hidden. Or it could have been scrolled out of view.
|
|
*/
|
|
bool cursor_is_visible = false;
|
|
int view_end = (term->grid->view + term->rows - 1) & (term->grid->num_rows - 1);
|
|
int cursor_row = (term->grid->offset + term->cursor.point.row) & (term->grid->num_rows - 1);
|
|
if (view_end >= term->grid->view) {
|
|
/* Not wrapped */
|
|
if (cursor_row >= term->grid->view && cursor_row <= view_end)
|
|
cursor_is_visible = true;
|
|
} else {
|
|
/* Wrapped */
|
|
if (cursor_row >= term->grid->view || cursor_row <= view_end)
|
|
cursor_is_visible = true;
|
|
}
|
|
|
|
/*
|
|
* Wait for workers to finish before we render the cursor. This is
|
|
* because the cursor cell might be dirty, in which case a worker
|
|
* will render it (but without the cursor).
|
|
*/
|
|
if (term->render.workers.count > 0) {
|
|
for (size_t i = 0; i < term->render.workers.count; i++)
|
|
sem_wait(&term->render.workers.done);
|
|
term->render.workers.buf = NULL;
|
|
}
|
|
|
|
if (cursor_is_visible && !term->hide_cursor) {
|
|
/* Remember cursor coordinates so that we can erase it next
|
|
* time. Note that we need to re-align it against the view. */
|
|
int view_aligned_row
|
|
= (cursor_row - term->grid->view + term->grid->num_rows) & (term->grid->num_rows - 1);
|
|
|
|
term->render.last_cursor.actual = term->cursor.point;
|
|
term->render.last_cursor.in_view = (struct coord) {
|
|
term->cursor.point.col, view_aligned_row};
|
|
|
|
struct row *row = grid_row_in_view(term->grid, view_aligned_row);
|
|
struct cell *cell = &row->cells[term->cursor.point.col];
|
|
|
|
cell->attrs.clean = 0;
|
|
term->render.last_cursor.cell = cell;
|
|
int cols_updated = render_cell(
|
|
term, pix, cell, term->cursor.point.col, view_aligned_row, true);
|
|
|
|
wl_surface_damage_buffer(
|
|
term->window->surface,
|
|
term->x_margin + term->cursor.point.col * term->cell_width,
|
|
term->y_margin + view_aligned_row * term->cell_height,
|
|
cols_updated * term->cell_width, term->cell_height);
|
|
}
|
|
|
|
if (term->flash.active) {
|
|
/* Note: alpha is pre-computed in each color component */
|
|
/* TODO: dim while searching */
|
|
pixman_image_fill_rectangles(
|
|
PIXMAN_OP_OVER, pix,
|
|
&(pixman_color_t){.red=0x7fff, .green=0x7fff, .blue=0, .alpha=0x7fff},
|
|
1, &(pixman_rectangle16_t){0, 0, term->width, term->height});
|
|
|
|
wl_surface_damage_buffer(
|
|
term->window->surface, 0, 0, term->width, term->height);
|
|
}
|
|
|
|
assert(term->grid->offset >= 0 && term->grid->offset < term->grid->num_rows);
|
|
assert(term->grid->view >= 0 && term->grid->view < term->grid->num_rows);
|
|
|
|
assert(term->window->frame_callback == NULL);
|
|
term->window->frame_callback = wl_surface_frame(term->window->surface);
|
|
wl_callback_add_listener(term->window->frame_callback, &frame_listener, term);
|
|
|
|
wl_surface_set_buffer_scale(term->window->surface, term->scale);
|
|
|
|
|
|
if (term->wl->presentation != NULL && term->render.presentation_timings) {
|
|
clock_gettime(term->wl->presentation_clock_id, &term->render.commit_time);
|
|
|
|
struct wp_presentation_feedback *feedback = wp_presentation_feedback(
|
|
term->wl->presentation, term->window->surface);
|
|
|
|
if (feedback == NULL) {
|
|
LOG_WARN("failed to create presentation feedback");
|
|
} else {
|
|
wp_presentation_feedback_add_listener(
|
|
feedback, &presentation_feedback_listener, term);
|
|
}
|
|
}
|
|
|
|
wl_surface_commit(term->window->surface);
|
|
|
|
#if TIME_FRAME_RENDERING
|
|
struct timeval end_time;
|
|
gettimeofday(&end_time, NULL);
|
|
|
|
struct timeval render_time;
|
|
timersub(&end_time, &start_time, &render_time);
|
|
LOG_INFO("frame rendered in %lds %ldus",
|
|
render_time.tv_sec, render_time.tv_usec);
|
|
#endif
|
|
wl_display_flush(term->wl->display);
|
|
}
|
|
|
|
static void
|
|
frame_callback(void *data, struct wl_callback *wl_callback, uint32_t callback_data)
|
|
{
|
|
struct terminal *term = data;
|
|
|
|
assert(term->window->frame_callback == wl_callback);
|
|
wl_callback_destroy(wl_callback);
|
|
term->window->frame_callback = NULL;
|
|
|
|
if (term->render.pending) {
|
|
term->render.pending = false;
|
|
grid_render(term);
|
|
}
|
|
}
|
|
|
|
void
|
|
render_search_box(struct terminal *term)
|
|
{
|
|
assert(term->window->search_sub_surface != NULL);
|
|
|
|
const int scale = term->scale >= 1 ? term->scale : 1;
|
|
const int margin = scale * 3;
|
|
const int width = min(term->width, 2 * margin + max(20, term->search.len) * term->cell_width);
|
|
const int height = min(term->height, 2 * margin + 1 * term->cell_height);
|
|
|
|
unsigned long cookie = (uintptr_t)term;
|
|
struct buffer *buf = shm_get_buffer(term->wl->shm, width, height, cookie);
|
|
|
|
/* Background - yellow on empty/match, red on mismatch */
|
|
pixman_color_t color = color_hex_to_pixman(
|
|
term->search.match_len == term->search.len
|
|
? term->colors.table[3] : term->colors.table[1]);
|
|
|
|
pixman_image_fill_rectangles(
|
|
PIXMAN_OP_SRC, buf->pix, &color,
|
|
1, &(pixman_rectangle16_t){0, 0, width, height});
|
|
|
|
struct font *font = term->fonts[0];
|
|
int x = margin;
|
|
int y = margin;
|
|
pixman_color_t fg = color_hex_to_pixman(term->colors.table[0]);
|
|
|
|
/* Text (what the user entered - *not* match(es)) */
|
|
for (size_t i = 0; i < term->search.len; i++) {
|
|
if (i == term->search.cursor)
|
|
draw_bar(term, buf->pix, font, &fg, x, y);
|
|
|
|
const struct glyph *glyph = font_glyph_for_wc(font, term->search.buf[i]);
|
|
if (glyph == NULL)
|
|
continue;
|
|
|
|
pixman_image_t *src = pixman_image_create_solid_fill(&fg);
|
|
pixman_image_composite32(
|
|
PIXMAN_OP_OVER, src, glyph->pix, buf->pix, 0, 0, 0, 0,
|
|
x + glyph->x, y + font_baseline(term) - glyph->y,
|
|
glyph->width, glyph->height);
|
|
pixman_image_unref(src);
|
|
|
|
x += term->cell_width;
|
|
}
|
|
|
|
if (term->search.cursor >= term->search.len)
|
|
draw_bar(term, buf->pix, font, &fg, x, y);
|
|
|
|
wl_subsurface_set_position(
|
|
term->window->search_sub_surface,
|
|
max(0, term->width - width - margin),
|
|
max(0, term->height - height - margin));
|
|
|
|
wl_surface_damage_buffer(term->window->search_surface, 0, 0, width, height);
|
|
wl_surface_attach(term->window->search_surface, buf->wl_buf, 0, 0);
|
|
wl_surface_set_buffer_scale(term->window->search_surface, scale);
|
|
wl_surface_commit(term->window->search_surface);
|
|
}
|
|
|
|
static void
|
|
reflow(struct row **new_grid, int new_cols, int new_rows,
|
|
struct row *const *old_grid, int old_cols, int old_rows)
|
|
{
|
|
/* TODO: actually reflow */
|
|
for (int r = 0; r < min(new_rows, old_rows); r++) {
|
|
size_t copy_cols = min(new_cols, old_cols);
|
|
size_t clear_cols = new_cols - copy_cols;
|
|
|
|
if (old_grid[r] == NULL)
|
|
continue;
|
|
|
|
if (new_grid[r] == NULL)
|
|
new_grid[r] = grid_row_alloc(new_cols, false);
|
|
|
|
struct cell *new_cells = new_grid[r]->cells;
|
|
const struct cell *old_cells = old_grid[r]->cells;
|
|
|
|
new_grid[r]->dirty = old_grid[r]->dirty;
|
|
memcpy(new_cells, old_cells, copy_cols * sizeof(new_cells[0]));
|
|
memset(&new_cells[copy_cols], 0, clear_cols * sizeof(new_cells[0]));
|
|
}
|
|
}
|
|
|
|
/* Move to terminal.c? */
|
|
void
|
|
render_resize(struct terminal *term, int width, int height)
|
|
{
|
|
int scale = -1;
|
|
tll_foreach(term->window->on_outputs, it) {
|
|
if (it->item->scale > scale)
|
|
scale = it->item->scale;
|
|
}
|
|
|
|
if (scale == -1) {
|
|
/* Haven't 'entered' an output yet? */
|
|
scale = 1;
|
|
}
|
|
|
|
width *= scale;
|
|
height *= scale;
|
|
|
|
if (width == 0 && height == 0) {
|
|
/* Assume we're not fully up and running yet */
|
|
return;
|
|
}
|
|
|
|
if (width == term->width && height == term->height && scale == term->scale)
|
|
return;
|
|
|
|
term->width = width;
|
|
term->height = height;
|
|
term->scale = scale;
|
|
|
|
const int scrollback_lines = term->render.scrollback_lines;
|
|
|
|
const int old_cols = term->cols;
|
|
const int old_rows = term->rows;
|
|
const int old_normal_grid_rows = term->normal.num_rows;
|
|
const int old_alt_grid_rows = term->alt.num_rows;
|
|
|
|
const int new_cols = term->width / term->cell_width;
|
|
const int new_rows = term->height / term->cell_height;
|
|
const int new_normal_grid_rows = 1 << (32 - __builtin_clz(new_rows + scrollback_lines - 1));
|
|
const int new_alt_grid_rows = 1 << (32 - __builtin_clz(new_rows));
|
|
|
|
term->x_margin = (term->width - new_cols * term->cell_width) / 2;
|
|
term->y_margin = (term->height - new_rows * term->cell_height) / 2;
|
|
|
|
term->normal.offset %= new_normal_grid_rows;
|
|
term->normal.view %= new_normal_grid_rows;
|
|
|
|
term->alt.offset %= new_alt_grid_rows;
|
|
term->alt.view %= new_alt_grid_rows;
|
|
|
|
/* Allocate new 'normal' grid */
|
|
struct row **normal = calloc(new_normal_grid_rows, sizeof(normal[0]));
|
|
for (int r = 0; r < new_rows; r++) {
|
|
size_t real_r = (term->normal.view + r) & (new_normal_grid_rows - 1);
|
|
normal[real_r] = grid_row_alloc(new_cols, true);
|
|
}
|
|
|
|
/* Allocate new 'alt' grid */
|
|
struct row **alt = calloc(new_alt_grid_rows, sizeof(alt[0]));
|
|
for (int r = 0; r < new_rows; r++) {
|
|
int real_r = (term->alt.view + r) & (new_alt_grid_rows - 1);
|
|
alt[real_r] = grid_row_alloc(new_cols, true);
|
|
}
|
|
|
|
/* Reflow content */
|
|
reflow(normal, new_cols, new_normal_grid_rows,
|
|
term->normal.rows, old_cols, old_normal_grid_rows);
|
|
reflow(alt, new_cols, new_alt_grid_rows,
|
|
term->alt.rows, old_cols, old_alt_grid_rows);
|
|
|
|
/* Free old 'normal' grid */
|
|
for (int r = 0; r < term->normal.num_rows; r++)
|
|
grid_row_free(term->normal.rows[r]);
|
|
free(term->normal.rows);
|
|
|
|
/* Free old 'alt' grid */
|
|
for (int r = 0; r < term->alt.num_rows; r++)
|
|
grid_row_free(term->alt.rows[r]);
|
|
free(term->alt.rows);
|
|
|
|
/* Reset tab stops */
|
|
tll_free(term->tab_stops);
|
|
for (int c = 0; c < new_cols; c += 8)
|
|
tll_push_back(term->tab_stops, c);
|
|
|
|
term->cols = new_cols;
|
|
term->rows = new_rows;
|
|
|
|
term->normal.rows = normal;
|
|
term->normal.num_rows = new_normal_grid_rows;
|
|
term->normal.num_cols = new_cols;
|
|
term->alt.rows = alt;
|
|
term->alt.num_rows = new_alt_grid_rows;
|
|
term->alt.num_cols = new_cols;
|
|
|
|
LOG_INFO("resize: %dx%d, grid: cols=%d, rows=%d (x-margin=%d, y-margin=%d)",
|
|
term->width, term->height, term->cols, term->rows,
|
|
term->x_margin, term->y_margin);
|
|
|
|
/* Signal TIOCSWINSZ */
|
|
if (ioctl(term->ptmx, TIOCSWINSZ,
|
|
&(struct winsize){
|
|
.ws_row = term->rows,
|
|
.ws_col = term->cols,
|
|
.ws_xpixel = term->width,
|
|
.ws_ypixel = term->height}) == -1)
|
|
{
|
|
LOG_ERRNO("TIOCSWINSZ");
|
|
}
|
|
|
|
if (term->scroll_region.start >= term->rows)
|
|
term->scroll_region.start = 0;
|
|
|
|
if (term->scroll_region.end >= old_rows)
|
|
term->scroll_region.end = term->rows;
|
|
|
|
term_cursor_to(
|
|
term,
|
|
min(term->cursor.point.row, term->rows - 1),
|
|
min(term->cursor.point.col, term->cols - 1));
|
|
|
|
term->render.last_cursor.cell = NULL;
|
|
|
|
term_damage_view(term);
|
|
render_refresh(term);
|
|
}
|
|
|
|
void
|
|
render_set_title(struct terminal *term, const char *_title)
|
|
{
|
|
/* TODO: figure out what the limit actually is */
|
|
static const size_t max_len = 100;
|
|
|
|
const char *title = _title;
|
|
char *copy = NULL;
|
|
|
|
if (strlen(title) > max_len) {
|
|
copy = strndup(_title, max_len);
|
|
title = copy;
|
|
}
|
|
|
|
xdg_toplevel_set_title(term->window->xdg_toplevel, title);
|
|
free(copy);
|
|
}
|
|
|
|
void
|
|
render_refresh(struct terminal *term)
|
|
{
|
|
if (term->window->frame_callback == NULL)
|
|
grid_render(term);
|
|
else
|
|
term->render.pending = true;
|
|
}
|