Esempi in C++ (Cpp) per _cairo_gl_composite_draw_tristrip

Esempio n. 1

void
_cairo_gl_composite_flush (cairo_gl_context_t *ctx)
{
    unsigned int count;
    int i;

    if (_cairo_gl_context_is_flushed (ctx))
        return;

    count = ctx->vb_offset / ctx->vertex_size;
    _cairo_gl_composite_unmap_vertex_buffer (ctx);

    if ( _cairo_array_num_elements (&ctx->tristrip_indices) > 0) {
	_cairo_gl_composite_draw_tristrip (ctx);
    } else if (ctx->clip_region) {
	int i, num_rectangles = cairo_region_num_rectangles (ctx->clip_region);

	for (i = 0; i < num_rectangles; i++) {
	    cairo_rectangle_int_t rect;

	    cairo_region_get_rectangle (ctx->clip_region, i, &rect);

	    glScissor (rect.x, rect.y, rect.width, rect.height);
            _cairo_gl_composite_draw (ctx, count);
	}
    } else {
        _cairo_gl_composite_draw (ctx, count);
    }

    for (i = 0; i < ARRAY_LENGTH (&ctx->glyph_cache); i++)
	_cairo_gl_glyph_cache_unlock (&ctx->glyph_cache[i]);
}

Esempio n. 2

File: cairo-gl-composite.c Progetto: csyuschmjuh/apl

void
_cairo_gl_composite_flush (cairo_gl_context_t *ctx)
{
    unsigned int count;
    int i;

    if (_cairo_gl_context_is_flushed (ctx))
        return;

    count = ctx->vb_offset / ctx->vertex_size;
    _cairo_gl_composite_unmap_vertex_buffer (ctx);

    if (ctx->primitive_type == CAIRO_GL_PRIMITIVE_TYPE_TRISTRIPS) {
	if (ctx->draw_mode == CAIRO_GL_LINE_STRIP ||
	    ctx->draw_mode == CAIRO_GL_LINES)
	    _cairo_gl_composite_draw_line (ctx);
	else
	    _cairo_gl_composite_draw_tristrip (ctx);
    } else {
	assert (ctx->primitive_type == CAIRO_GL_PRIMITIVE_TYPE_TRIANGLES);
	_cairo_gl_composite_draw_triangles_with_clip_region (ctx, count);
    }

    for (i = 0; i < ARRAY_LENGTH (&ctx->glyph_cache); i++)
	_cairo_gl_glyph_cache_unlock (&ctx->glyph_cache[i]);

    _cairo_gl_image_cache_unlock (ctx);
}