AC_SUBST(PANGO_CFLAGS)
AC_SUBST(PANGO_LIBS)
-PKG_CHECK_MODULES([CAIRO], [cairo],
- [have_cairo=yes], [have_cairo=no])
-AC_SUBST(CAIRO_CFLAGS)
-AC_SUBST(CAIRO_LIBS)
-
PKG_CHECK_MODULES([PIXMAN], [pixman-1],
[have_pixman=yes], [have_pixman=no])
AC_SUBST(PIXMAN_CFLAGS)
[with_renderers="default"])
enable_renderer_bbulk="no"
enable_renderer_gltex="no"
-enable_renderer_cairo="no"
enable_renderer_pixman="no"
if test "x$enable_all" = "xyes" ; then
enable_renderer_bbulk="yes"
enable_renderer_gltex="yes"
- enable_renderer_cairo="yes"
enable_renderer_pixman="yes"
- with_renderers="bbulk,gltex,cairo,pixman (all)"
+ with_renderers="bbulk,gltex,pixman (all)"
elif test "x$with_renderers" = "xdefault" ; then
enable_renderer_bbulk="yes (default)"
enable_renderer_gltex="yes (default)"
- enable_renderer_cairo="no (default)"
enable_renderer_pixman="no (default)"
with_renderers="bbulk,gltex (default)"
elif test ! "x$with_renderers" = "x" ; then
enable_renderer_bbulk="yes"
elif test "x$i" = "xgltex" ; then
enable_renderer_gltex="yes"
- elif test "x$i" = "xcairo" ; then
- enable_renderer_cairo="yes"
elif test "x$i" = "xpixman" ; then
enable_renderer_pixman="yes"
else
renderer_gltex_missing="enable-renderer-gltex"
fi
-# renderer cairo
-renderer_cairo_avail=no
-renderer_cairo_missing=""
-if test ! "x$enable_renderer_cairo" = "xno" ; then
- renderer_cairo_avail=yes
- if test "x$have_cairo" = "xno" ; then
- renderer_cairo_avail=no
- renderer_cairo_missing="cairo"
- fi
-
- if test "x$renderer_cairo_avail" = "xno" ; then
- if test "x$enable_renderer_cairo" = "xyes" ; then
- AC_ERROR([missing for renderer-cairo: $renderer_cairo_missing])
- fi
- fi
-else
- renderer_cairo_missing="enable-renderer-cairo"
-fi
-
# renderer pixman
renderer_pixman_avail=no
renderer_pixman_missing=""
fi
fi
-# renderer cairo
-renderer_cairo_enabled=no
-if test "x$renderer_cairo_avail" = "xyes" ; then
- if test "x${enable_renderer_cairo% *}" = "xyes" ; then
- renderer_cairo_enabled=yes
- fi
-fi
-
# renderer pixman
renderer_pixman_enabled=no
if test "x$renderer_pixman_avail" = "xyes" ; then
AM_CONDITIONAL([BUILD_ENABLE_RENDERER_GLTEX],
[test "x$renderer_gltex_enabled" = "xyes"])
-# renderer cairo
-if test "x$renderer_cairo_enabled" = "xyes" ; then
- AC_DEFINE([BUILD_ENABLE_RENDERER_CAIRO], [1],
- [Build cairo rendering backend])
-fi
-
-AM_CONDITIONAL([BUILD_ENABLE_RENDERER_CAIRO],
- [test "x$renderer_cairo_enabled" = "xyes"])
-
# renderer pixman
if test "x$renderer_pixman_enabled" = "xyes" ; then
AC_DEFINE([BUILD_ENABLE_RENDERER_PIXMAN], [1],
Renderers:
bbulk: $renderer_bbulk_enabled ($renderer_bbulk_avail: $renderer_bbulk_missing)
gltex: $renderer_gltex_enabled ($renderer_gltex_avail: $renderer_gltex_missing)
- cairo: $renderer_cairo_enabled ($renderer_cairo_avail: $renderer_cairo_missing)
pixman: $renderer_pixman_enabled ($renderer_pixman_avail: $renderer_pixman_missing)
Session Types:
+++ /dev/null
-/*
- * kmscon - Cairo Text Renderer Backend
- *
- * Copyright (c) 2012-2013 David Herrmann <dh.herrmann@googlemail.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files
- * (the "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
- * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * Cairo based text renderer
- */
-
-#include <cairo.h>
-#include <errno.h>
-#include <stdbool.h>
-#include <stdlib.h>
-#include <string.h>
-#include "shl_hashtable.h"
-#include "shl_log.h"
-#include "text.h"
-#include "uterm_video.h"
-
-#define LOG_SUBSYSTEM "text_cairo"
-
-struct tc_glyph {
- const struct kmscon_glyph *glyph;
- cairo_surface_t *surf;
- uint8_t *data;
-};
-
-struct tc_cairo {
- struct shl_hashtable *glyphs;
- struct shl_hashtable *bold_glyphs;
-
- bool new_stride;
- unsigned int cur;
- struct uterm_video_buffer buf[2];
- cairo_surface_t *surf[2];
- cairo_t *ctx[2];
-
- bool use_indirect;
- uint8_t *data[2];
- struct uterm_video_buffer vbuf;
-};
-
-static int tc_init(struct kmscon_text *txt)
-{
- struct tc_cairo *tc;
-
- tc = malloc(sizeof(*tc));
- if (!tc)
- return -ENOMEM;
-
- txt->data = tc;
- return 0;
-}
-
-static void tc_destroy(struct kmscon_text *txt)
-{
- struct tc_cairo *tc = txt->data;
-
- free(tc);
-}
-
-static void free_glyph(void *data)
-{
- struct tc_glyph *glyph = data;
-
- cairo_surface_destroy(glyph->surf);
- free(glyph->data);
- free(glyph);
-}
-
-static unsigned int format_u2c(unsigned int f)
-{
- switch (f) {
- case UTERM_FORMAT_XRGB32:
- return CAIRO_FORMAT_ARGB32;
- case UTERM_FORMAT_RGB16:
- return CAIRO_FORMAT_RGB16_565;
- case UTERM_FORMAT_GREY:
- return CAIRO_FORMAT_A8;
- default:
- return CAIRO_FORMAT_INVALID;
- }
-}
-
-static int alloc_indirect(struct kmscon_text *txt,
- unsigned int w, unsigned int h)
-{
- struct tc_cairo *tc = txt->data;
- unsigned int s, i, format;
- int ret;
-
- log_info("using blitting engine");
-
- format = format_u2c(UTERM_FORMAT_XRGB32);
- s = cairo_format_stride_for_width(format, w);
-
- tc->data[0] = malloc(s * h);
- tc->data[1] = malloc(s * h);
- if (!tc->data[0] || !tc->data[1]) {
- log_error("cannot allocate memory for render-buffer");
- ret = -ENOMEM;
- goto err_free;
- }
-
- for (i = 0; i < 2; ++i) {
- tc->surf[i] = cairo_image_surface_create_for_data(tc->data[i],
- format,
- w, h, s);
-
- ret = cairo_surface_status(tc->surf[i]);
- if (ret != CAIRO_STATUS_SUCCESS) {
- log_error("cannot create cairo surface: %d", ret);
- goto err_cairo;
- }
- }
-
- tc->vbuf.width = w;
- tc->vbuf.height = h;
- tc->vbuf.stride = s;
- tc->vbuf.format = UTERM_FORMAT_XRGB32;
- tc->use_indirect = true;
- return 0;
-
-err_cairo:
- cairo_surface_destroy(tc->surf[1]);
- cairo_surface_destroy(tc->surf[0]);
-err_free:
- free(tc->data[1]);
- free(tc->data[0]);
- tc->data[1] = NULL;
- tc->data[0] = NULL;
- return ret;
-}
-
-static int tc_set(struct kmscon_text *txt)
-{
- struct tc_cairo *tc = txt->data;
- int ret, ret2;
- unsigned int format, w, h;
- struct uterm_mode *m;
-
- memset(tc, 0, sizeof(*tc));
- m = uterm_display_get_current(txt->disp);
- w = uterm_mode_get_width(m);
- h = uterm_mode_get_height(m);
-
- ret = shl_hashtable_new(&tc->glyphs, shl_direct_hash,
- shl_direct_equal, NULL,
- free_glyph);
- if (ret)
- return ret;
-
- ret = shl_hashtable_new(&tc->bold_glyphs, shl_direct_hash,
- shl_direct_equal, NULL,
- free_glyph);
- if (ret)
- goto err_htable;
-
- /*
- * TODO: It is actually faster to use a local shadow buffer and then
- * blit all data to the framebuffer afterwards. Reads seem to be
- * horribly slow on some mmap'ed framebuffers. However, that's not true
- * for all so we actually don't know which to use here.
- */
- ret = uterm_display_get_buffers(txt->disp, tc->buf,
- UTERM_FORMAT_XRGB32 |
- UTERM_FORMAT_RGB16);
- if (ret) {
- log_warning("cannot get buffers for display %p",
- txt->disp);
- ret = alloc_indirect(txt, w, h);
- if (ret)
- goto err_htable_bold;
- } else {
- format = format_u2c(tc->buf[0].format);
- tc->surf[0] = cairo_image_surface_create_for_data(
- tc->buf[0].data,
- format,
- tc->buf[0].width,
- tc->buf[0].height,
- tc->buf[0].stride);
- format = format_u2c(tc->buf[1].format);
- tc->surf[1] = cairo_image_surface_create_for_data(
- tc->buf[1].data,
- format,
- tc->buf[1].width,
- tc->buf[1].height,
- tc->buf[1].stride);
-
- ret = cairo_surface_status(tc->surf[0]);
- ret2 = cairo_surface_status(tc->surf[1]);
- if (ret != CAIRO_STATUS_SUCCESS ||
- ret2 != CAIRO_STATUS_SUCCESS) {
- log_error("cannot create cairo surface: %d %d",
- ret, ret2);
- cairo_surface_destroy(tc->surf[1]);
- cairo_surface_destroy(tc->surf[0]);
- ret = alloc_indirect(txt, w, h);
- if (ret)
- goto err_htable_bold;
- }
- }
-
- tc->ctx[0] = cairo_create(tc->surf[0]);
- tc->ctx[1] = cairo_create(tc->surf[1]);
- ret = cairo_status(tc->ctx[0]);
- ret2 = cairo_status(tc->ctx[1]);
- if (ret != CAIRO_STATUS_SUCCESS || ret2 != CAIRO_STATUS_SUCCESS) {
- log_error("cannot create cairo contexts: %d %d", ret, ret2);
- goto err_ctx;
- }
-
- txt->cols = w / txt->font->attr.width;
- txt->rows = h / txt->font->attr.height;
-
- return 0;
-
-err_ctx:
- cairo_destroy(tc->ctx[1]);
- cairo_destroy(tc->ctx[0]);
- cairo_surface_destroy(tc->surf[1]);
- cairo_surface_destroy(tc->surf[0]);
- free(tc->data[1]);
- free(tc->data[0]);
-err_htable_bold:
- shl_hashtable_free(tc->bold_glyphs);
-err_htable:
- shl_hashtable_free(tc->glyphs);
- return ret;
-}
-
-static void tc_unset(struct kmscon_text *txt)
-{
- struct tc_cairo *tc = txt->data;
-
- cairo_destroy(tc->ctx[1]);
- cairo_destroy(tc->ctx[0]);
- cairo_surface_destroy(tc->surf[1]);
- cairo_surface_destroy(tc->surf[0]);
- free(tc->data[1]);
- free(tc->data[0]);
- shl_hashtable_free(tc->bold_glyphs);
- shl_hashtable_free(tc->glyphs);
-}
-
-static int find_glyph(struct kmscon_text *txt, struct tc_glyph **out,
- uint32_t id, const uint32_t *ch, size_t len, bool bold)
-{
- struct tc_cairo *tc = txt->data;
- struct tc_glyph *glyph;
- struct shl_hashtable *gtable;
- struct kmscon_font *font;
- const struct uterm_video_buffer *buf;
- uint8_t *dst, *src;
- unsigned int format, i;
- int ret, stride;
- bool res;
-
- if (bold) {
- gtable = tc->bold_glyphs;
- font = txt->bold_font;
- } else {
- gtable = tc->glyphs;
- font = txt->font;
- }
-
- res = shl_hashtable_find(gtable, (void**)&glyph,
- (void*)(unsigned long)id);
- if (res) {
- *out = glyph;
- return 0;
- }
-
- glyph = malloc(sizeof(*glyph));
- if (!glyph)
- return -ENOMEM;
- memset(glyph, 0, sizeof(*glyph));
-
- if (!len)
- ret = kmscon_font_render_empty(font, &glyph->glyph);
- else
- ret = kmscon_font_render(font, id, ch, len, &glyph->glyph);
-
- if (ret) {
- ret = kmscon_font_render_inval(font, &glyph->glyph);
- if (ret)
- goto err_free;
- }
-
- buf = &glyph->glyph->buf;
- stride = buf->stride;
- format = format_u2c(buf->format);
- glyph->surf = cairo_image_surface_create_for_data(buf->data,
- format,
- buf->width,
- buf->height,
- buf->stride);
- ret = cairo_surface_status(glyph->surf);
- if (ret == CAIRO_STATUS_INVALID_STRIDE) {
- stride = cairo_format_stride_for_width(format, buf->width);
- if (!tc->new_stride) {
- tc->new_stride = true;
- log_debug("wrong stride, copy buffer (%d => %d)",
- buf->stride, stride);
- }
-
- glyph->data = malloc(stride * buf->height);
- if (!glyph->data) {
- log_error("cannot allocate memory for glyph storage");
- ret = -ENOMEM;
- goto err_cairo;
- }
-
- src = buf->data;
- dst = glyph->data;
- for (i = 0; i < buf->height; ++i) {
- memcpy(dst, src, buf->width);
- dst += stride;
- src += buf->stride;
- }
-
- cairo_surface_destroy(glyph->surf);
- glyph->surf = cairo_image_surface_create_for_data(glyph->data,
- format,
- buf->width,
- buf->height,
- stride);
- ret = cairo_surface_status(glyph->surf);
- }
- if (ret != CAIRO_STATUS_SUCCESS) {
- log_error("cannot create cairo-glyph: %d %p %d %d %d %d",
- ret, glyph->data ? glyph->data : buf->data, format,
- buf->width, buf->height, stride);
- ret = -EFAULT;
- goto err_cairo;
- }
-
- ret = shl_hashtable_insert(gtable, (void*)(long)id, glyph);
- if (ret)
- goto err_cairo;
-
- *out = glyph;
- return 0;
-
-err_cairo:
- cairo_surface_destroy(glyph->surf);
- free(glyph->data);
-err_free:
- free(glyph);
- return ret;
-}
-
-static int tc_prepare(struct kmscon_text *txt)
-{
- struct tc_cairo *tc = txt->data;
- int ret;
-
- ret = uterm_display_use(txt->disp, NULL);
- if (ret < 0) {
- log_error("cannot use display %p", txt->disp);
- return ret;
- }
-
- tc->cur = ret;
-
- return 0;
-}
-
-static int tc_draw(struct kmscon_text *txt,
- uint32_t id, const uint32_t *ch, size_t len,
- unsigned int width,
- unsigned int posx, unsigned int posy,
- const struct tsm_screen_attr *attr)
-{
- struct tc_cairo *tc = txt->data;
- cairo_t *cr = tc->ctx[tc->cur];
- struct tc_glyph *glyph;
- int ret;
-
- if (!width)
- return 0;
-
- ret = find_glyph(txt, &glyph, id, ch, len, attr->bold);
- if (ret)
- return ret;
-
- cairo_rectangle(cr,
- posx * txt->font->attr.width,
- posy * txt->font->attr.height,
- txt->font->attr.width,
- txt->font->attr.height);
-
- if (attr->inverse)
- cairo_set_source_rgb(cr, attr->fr / 255.0, attr->fg / 255.0,
- attr->fb / 255.0);
- else
- cairo_set_source_rgb(cr, attr->br / 255.0, attr->bg / 255.0,
- attr->bb / 255.0);
-
- cairo_fill(cr);
-
- if (attr->inverse)
- cairo_set_source_rgb(cr, attr->br / 255.0, attr->bg / 255.0,
- attr->bb / 255.0);
- else
- cairo_set_source_rgb(cr, attr->fr / 255.0, attr->fg / 255.0,
- attr->fb / 255.0);
-
- cairo_mask_surface(cr, glyph->surf,
- posx * txt->font->attr.width,
- posy * txt->font->attr.height);
-
- return 0;
-}
-
-static int tc_render(struct kmscon_text *txt)
-{
- struct tc_cairo *tc = txt->data;
- int ret;
-
- cairo_surface_flush(tc->surf[tc->cur]);
-
- if (!tc->use_indirect)
- return 0;
-
- tc->vbuf.data = tc->data[tc->cur];
- ret = uterm_display_blit(txt->disp, &tc->vbuf, 0, 0);
- if (ret) {
- log_error("cannot blit back-buffer to display: %d", ret);
- return ret;
- }
-
- return 0;
-}
-
-struct kmscon_text_ops kmscon_text_cairo_ops = {
- .name = "cairo",
- .owner = NULL,
- .init = tc_init,
- .destroy = tc_destroy,
- .set = tc_set,
- .unset = tc_unset,
- .prepare = tc_prepare,
- .draw = tc_draw,
- .render = tc_render,
- .abort = NULL,
-};
projects / platform / upstream / kmscon.git / commitdiff