diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/kmscon_mod_cairo.c | 57 | ||||
| -rw-r--r-- | src/text.h | 1 | ||||
| -rw-r--r-- | src/text_cairo.c | 467 |
3 files changed, 0 insertions, 525 deletions
diff --git a/src/kmscon_mod_cairo.c b/src/kmscon_mod_cairo.c deleted file mode 100644 index ecdcf62..0000000 --- a/src/kmscon_mod_cairo.c +++ /dev/null @@ -1,57 +0,0 @@ -/* - * kmscon - Cairo based rendering backend module - * - * 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 rendering backend - */ - -#include <errno.h> -#include <stdlib.h> -#include "text.h" -#include "kmscon_module_interface.h" -#include "shl_log.h" - -#define LOG_SUBSYSTEM "mod_cairo" - -static int kmscon_cairo_load(void) -{ - int ret; - - kmscon_text_cairo_ops.owner = KMSCON_THIS_MODULE; - ret = kmscon_text_register(&kmscon_text_cairo_ops); - if (ret) { - log_error("cannot register cairo renderer"); - return ret; - } - - return 0; -} - -static void kmscon_cairo_unload(void) -{ - kmscon_text_unregister(kmscon_text_cairo_ops.name); -} - -KMSCON_MODULE(NULL, kmscon_cairo_load, kmscon_cairo_unload, NULL); @@ -112,7 +112,6 @@ int kmscon_text_draw_cb(struct tsm_screen *con, extern struct kmscon_text_ops kmscon_text_bblit_ops; extern struct kmscon_text_ops kmscon_text_bbulk_ops; extern struct kmscon_text_ops kmscon_text_gltex_ops; -extern struct kmscon_text_ops kmscon_text_cairo_ops; extern struct kmscon_text_ops kmscon_text_pixman_ops; #endif /* KMSCON_TEXT_H */ diff --git a/src/text_cairo.c b/src/text_cairo.c deleted file mode 100644 index 715bfb4..0000000 --- a/src/text_cairo.c +++ /dev/null @@ -1,467 +0,0 @@ -/* - * 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, -}; |