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wip: render background and glyphs using pixman

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Daniel Eklöf 2019-08-16 20:40:32 +02:00
parent 9259696b18
commit bed7b34c28
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GPG key ID: 5BBD4992C116573F
5 changed files with 134 additions and 78 deletions
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28
shm.c
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@ -7,6 +7,8 @@
#include <sys/mman.h>
#include <linux/memfd.h>
#include <pixman.h>
#define LOG_MODULE "shm"
#include "log.h"
#include "tllist.h"
@ -61,6 +63,7 @@ shm_get_buffer(struct wl_shm *shm, int width, int height, size_t copies)
cairo_surface_t **cairo_surface = NULL;
cairo_t **cairo = NULL;
pixman_image_t **pix = NULL;
/* Backing memory for SHM */
pool_fd = memfd_create("f00sel-wayland-shm-buffer-pool", MFD_CLOEXEC);
@ -103,6 +106,7 @@ shm_get_buffer(struct wl_shm *shm, int width, int height, size_t copies)
/* Create a cairo surface around the mmapped memory */
cairo_surface = calloc(copies, sizeof(cairo_surface[0]));
cairo = calloc(copies, sizeof(cairo[0]));
pix = calloc(copies, sizeof(pix[0]));
for (size_t i = 0; i < copies; i++) {
cairo_surface[i] = cairo_image_surface_create_for_data(
@ -120,6 +124,14 @@ shm_get_buffer(struct wl_shm *shm, int width, int height, size_t copies)
cairo_status_to_string(cairo_status(cairo[i])));
goto err;
}
pix[i] = pixman_image_create_bits_no_clear(
PIXMAN_a8r8g8b8, width, height, (uint32_t *)mmapped, stride);
if (pix[i] == NULL) {
LOG_ERR("failed to create pixman image");
goto err;
}
}
/* Push to list of available buffers, but marked as 'busy' */
@ -128,13 +140,15 @@ shm_get_buffer(struct wl_shm *shm, int width, int height, size_t copies)
((struct buffer){
.width = width,
.height = height,
.stride = stride,
.busy = true,
.size = size,
.mmapped = mmapped,
.wl_buf = buf,
.copies = copies,
.cairo_surface = cairo_surface,
.cairo = cairo}
.cairo = cairo,
.pix = pix}
)
);
@ -155,6 +169,12 @@ err:
cairo_surface_destroy(cairo_surface[i]);
free(cairo_surface);
}
if (pix != NULL) {
for (size_t i = 0; i < copies; i++)
if (pix[i] != NULL)
pixman_image_unref(pix[i]);
free(pix);
}
if (buf != NULL)
wl_buffer_destroy(buf);
if (pool != NULL)
@ -185,6 +205,12 @@ shm_fini(void)
cairo_surface_destroy(buf->cairo_surface[i]);
free(buf->cairo_surface);
}
if (buf->pix != NULL) {
for (size_t i = 0; i < buf->copies; i++)
if (buf->pix[i] != NULL)
pixman_image_unref(buf->pix[i]);
free(buf->pix);
}
wl_buffer_destroy(buf->wl_buf);
munmap(buf->mmapped, buf->size);