diff options
Diffstat (limited to 'src/cairo-gl-composite.c')
| -rw-r--r-- | src/cairo-gl-composite.c | 103 |
1 files changed, 101 insertions, 2 deletions
diff --git a/src/cairo-gl-composite.c b/src/cairo-gl-composite.c index a95712e1c..ecf03a559 100644 --- a/src/cairo-gl-composite.c +++ b/src/cairo-gl-composite.c @@ -52,6 +52,93 @@ #include "cairo-error-private.h" #include "cairo-image-surface-private.h" +/* FIXME: Copy of same routine in cairo-gl-msaa-compositor.c */ +static cairo_int_status_t +_draw_int_rect (cairo_gl_context_t *ctx, + cairo_gl_composite_t *setup, + cairo_rectangle_int_t *rect) +{ + cairo_box_t box; + cairo_point_t quad[4]; + + _cairo_box_from_rectangle (&box, rect); + quad[0].x = box.p1.x; + quad[0].y = box.p1.y; + quad[1].x = box.p1.x; + quad[1].y = box.p2.y; + quad[2].x = box.p2.x; + quad[2].y = box.p2.y; + quad[3].x = box.p2.x; + quad[3].y = box.p1.y; + + return _cairo_gl_composite_emit_quad_as_tristrip (ctx, setup, quad); +} + +static cairo_int_status_t +_blit_texture_to_renderbuffer (cairo_gl_surface_t *surface) +{ + cairo_gl_context_t *ctx = NULL; + cairo_gl_composite_t setup; + cairo_surface_pattern_t pattern; + cairo_rectangle_int_t extents; + cairo_int_status_t status; + + /* FIXME: This only permits blit when glesv3 is enabled. But note that + glesv2 with the ANGLE extension should also be able to support this feature, + so once the ANGLE support code is in place this check can be relaxed. */ + if (((cairo_gl_context_t *)surface->base.device)->gl_flavor != CAIRO_GL_FLAVOR_ES3) + return CAIRO_INT_STATUS_SUCCESS; + + if (! surface->content_in_texture) + return CAIRO_INT_STATUS_SUCCESS; + + memset (&setup, 0, sizeof (cairo_gl_composite_t)); + + status = _cairo_gl_composite_set_operator (&setup, + CAIRO_OPERATOR_SOURCE, + FALSE); + + if (status) + return status; + + setup.dst = surface; + setup.clip_region = surface->clip_region; + + _cairo_pattern_init_for_surface (&pattern, &surface->base); + status = _cairo_gl_composite_set_source (&setup, &pattern.base, + NULL, NULL, FALSE); + _cairo_pattern_fini (&pattern.base); + + if (unlikely (status)) + goto FAIL; + + _cairo_gl_composite_set_multisample (&setup); + + status = _cairo_gl_composite_begin (&setup, &ctx); + + if (unlikely (status)) + goto FAIL; + + extents.x = extents.y = 0; + extents.width = surface->width; + extents.height = surface->height; + + status = _draw_int_rect (ctx, &setup, &extents); + + if (status == CAIRO_INT_STATUS_SUCCESS) + surface->content_in_texture = FALSE; + +FAIL: + _cairo_gl_composite_fini (&setup); + + if (ctx) { + _cairo_gl_composite_flush (ctx); + status = _cairo_gl_context_release (ctx, status); + } + + return status; +} + cairo_int_status_t _cairo_gl_composite_set_source (cairo_gl_composite_t *setup, const cairo_pattern_t *pattern, @@ -68,8 +155,13 @@ void _cairo_gl_composite_set_source_operand (cairo_gl_composite_t *setup, const cairo_gl_operand_t *source) { + cairo_int_status_t status; + _cairo_gl_operand_destroy (&setup->src); _cairo_gl_operand_copy (&setup->src, source); + + if (source->type == CAIRO_GL_OPERAND_TEXTURE) + status = _cairo_gl_surface_resolve_multisampling (source->texture.surface); } void @@ -99,9 +191,13 @@ void _cairo_gl_composite_set_mask_operand (cairo_gl_composite_t *setup, const cairo_gl_operand_t *mask) { + cairo_int_status_t status; _cairo_gl_operand_destroy (&setup->mask); - if (mask) + if (mask) { _cairo_gl_operand_copy (&setup->mask, mask); + if (mask->type == CAIRO_GL_OPERAND_TEXTURE) + status = _cairo_gl_surface_resolve_multisampling (mask->texture.surface); + } } void @@ -174,7 +270,8 @@ _cairo_gl_texture_set_extend (cairo_gl_context_t *ctx, switch (extend) { case CAIRO_EXTEND_NONE: - if (ctx->gl_flavor == CAIRO_GL_FLAVOR_ES2) + if (ctx->gl_flavor == CAIRO_GL_FLAVOR_ES3 || + ctx->gl_flavor == CAIRO_GL_FLAVOR_ES2) wrap_mode = GL_CLAMP_TO_EDGE; else wrap_mode = GL_CLAMP_TO_BORDER; @@ -1178,6 +1275,8 @@ _cairo_gl_composite_init (cairo_gl_composite_t *setup, { cairo_status_t status; + status = _blit_texture_to_renderbuffer (dst); + memset (setup, 0, sizeof (cairo_gl_composite_t)); status = _cairo_gl_composite_set_operator (setup, op, |