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| author | Mattias Andrée <maandree@kth.se> | 2020-04-28 22:03:11 +0200 |
|---|---|---|
| committer | Mattias Andrée <maandree@kth.se> | 2020-04-28 22:03:11 +0200 |
| commit | f531476aed448926b6ac0c746b93e6c6c587d16f (patch) | |
| tree | 9f36488fddb59d3860846b7aa153f955d9516e2b | |
| parent | Document alpha blending algorithm (diff) | |
| download | libskrift-f531476aed448926b6ac0c746b93e6c6c587d16f.tar.gz libskrift-f531476aed448926b6ac0c746b93e6c6c587d16f.tar.bz2 libskrift-f531476aed448926b6ac0c746b93e6c6c587d16f.tar.xz | |
Thread-safety
Signed-off-by: Mattias Andrée <maandree@kth.se>
| -rw-r--r-- | demo.c | 4 | ||||
| -rw-r--r-- | libskrift_get_grapheme_glyph.c | 10 |
2 files changed, 8 insertions, 6 deletions
@@ -11,7 +11,7 @@ main(void) LIBSKRIFT_CONTEXT *ctx; struct libskrift_image image = {LIBSKRIFT_R8G8B8A8, LIBSKRIFT_HOST_SUBPIXEL, 0, 800, 600, NULL, NULL, NULL}; struct libskrift_rendering rendering = LIBSKRIFT_DEFAULT_RENDERING; - struct libskrift_colour colour = LIBSKRIFT_PREMULTIPLY(1, 1, .80f, .50f, .20f); + struct libskrift_colour colour = LIBSKRIFT_PREMULTIPLY(0.8f, 0.25f, .80f, .50f, .20f); double height; size_t size, i; @@ -42,7 +42,7 @@ main(void) ((uint8_t *)image.image)[i + 0] = 32U; ((uint8_t *)image.image)[i + 1] = 48U; ((uint8_t *)image.image)[i + 2] = 64U; - ((uint8_t *)image.image)[i + 3] = 192U; + ((uint8_t *)image.image)[i + 3] = 250U; } if (libskrift_draw_text(ctx, "hello world", &colour, 0, 300, &image) < 0) { diff --git a/libskrift_get_grapheme_glyph.c b/libskrift_get_grapheme_glyph.c index 14f9a1b..fa7a8c5 100644 --- a/libskrift_get_grapheme_glyph.c +++ b/libskrift_get_grapheme_glyph.c @@ -6,18 +6,20 @@ libskrift_get_grapheme_glyph(LIBSKRIFT_CONTEXT *ctx, libskrift_codepoint_t codep double cursor_x, double cursor_y, struct libskrift_glyph **glyphp) { struct SFT_Char sft_chr; + struct SFT sft_ctx; size_t size = 1, width1, width2, width3, osize, off, r, c, i; int top = 0, left = 0, right = 0, bottom = 0; uint16_t width, height, vmul = 1, hmul = 1; uint8_t *image, *in_image; memset(&sft_chr, 0, sizeof(sft_chr)); + sft_ctx = ctx->schrift_ctx; - ctx->schrift_ctx.x = cursor_x * (ctx->subpixel_horizontally ? 3 : 1); - ctx->schrift_ctx.y = cursor_y * (ctx->subpixel_vertically ? 3 : 1); - ctx->schrift_ctx.flags = SFT_DOWNWARD_Y | SFT_CHAR_IMAGE; + sft_ctx.x = cursor_x * (ctx->subpixel_horizontally ? 3 : 1); + sft_ctx.y = cursor_y * (ctx->subpixel_vertically ? 3 : 1); + sft_ctx.flags = SFT_DOWNWARD_Y | SFT_CHAR_IMAGE; - if (sft_char(&ctx->schrift_ctx, codepoint, &sft_chr)) + if (sft_char(&sft_ctx, codepoint, &sft_chr)) return -1; if (ctx->subpixel_horizontally) { |