[PATCH 3/3] d2d1: Properly invert join directions when needed.

Henri Verbeet hverbeet at codeweavers.com
Mon Feb 13 06:13:22 CST 2017


Signed-off-by: Henri Verbeet <hverbeet at codeweavers.com>
---
 dlls/d2d1/geometry.c      | 11 ++++++++++-
 dlls/d2d1/render_target.c | 42 ++++++++++++++++++------------------------
 dlls/d2d1/tests/d2d1.c    |  3 ++-
 3 files changed, 30 insertions(+), 26 deletions(-)

diff --git a/dlls/d2d1/geometry.c b/dlls/d2d1/geometry.c
index b268b7d..5ef62cb 100644
--- a/dlls/d2d1/geometry.c
+++ b/dlls/d2d1/geometry.c
@@ -1743,6 +1743,7 @@ static BOOL d2d_geometry_outline_add_join(struct d2d_geometry *geometry,
     struct d2d_outline_vertex *v;
     struct d2d_face *f;
     size_t base_idx;
+    float ccw;
 
     if (!d2d_array_reserve((void **)&geometry->outline.vertices, &geometry->outline.vertices_size,
             geometry->outline.vertex_count + 4, sizeof(*geometry->outline.vertices)))
@@ -1767,7 +1768,8 @@ static BOOL d2d_geometry_outline_add_join(struct d2d_geometry *geometry,
     d2d_point_normalise(&q_prev);
     d2d_point_normalise(&q_next);
 
-    if (d2d_point_dot(&q_prev, &q_next) == -1.0f)
+    ccw = d2d_point_ccw(p0, prev, next);
+    if (ccw == 0.0f)
     {
         d2d_outline_vertex_set(&v[0], p0->x, p0->y,  q_prev.x,  q_prev.y,  q_prev.x,  q_prev.y);
         d2d_outline_vertex_set(&v[1], p0->x, p0->y, -q_prev.x, -q_prev.y, -q_prev.x, -q_prev.y);
@@ -1776,6 +1778,13 @@ static BOOL d2d_geometry_outline_add_join(struct d2d_geometry *geometry,
         d2d_outline_vertex_set(&v[3], p0->x + 25.0f * q_prev.x, p0->y + 25.0f * q_prev.y,
                  q_prev.x,  q_prev.y,  q_prev.x,  q_prev.y);
     }
+    else if (ccw < 0.0f)
+    {
+        d2d_outline_vertex_set(&v[0], p0->x, p0->y, 0.0f, 0.0f, 0.0f, 0.0f);
+        d2d_outline_vertex_set(&v[1], p0->x, p0->y, -q_next.x, -q_next.y, -q_next.x, -q_next.y);
+        d2d_outline_vertex_set(&v[2], p0->x, p0->y, -q_next.x, -q_next.y, -q_prev.x, -q_prev.y);
+        d2d_outline_vertex_set(&v[3], p0->x, p0->y, -q_prev.x, -q_prev.y, -q_prev.x, -q_prev.y);
+    }
     else
     {
         d2d_outline_vertex_set(&v[0], p0->x, p0->y, 0.0f, 0.0f, 0.0f, 0.0f);
diff --git a/dlls/d2d1/render_target.c b/dlls/d2d1/render_target.c
index 0f37264..c60d06e 100644
--- a/dlls/d2d1/render_target.c
+++ b/dlls/d2d1/render_target.c
@@ -1917,12 +1917,10 @@ HRESULT d2d_d3d_render_target_init(struct d2d_d3d_render_target *render_target,
             float2 q_prev, q_next, v_p, q_i;
             float l;
 
-            q_prev.x = dot(prev, transform_geometry._11_21);
-            q_prev.y = dot(prev, transform_geometry._12_22);
+            q_prev = float2(dot(prev, transform_geometry._11_21), dot(prev, transform_geometry._12_22));
             q_prev = normalize(q_prev);
 
-            q_next.x = dot(next, transform_geometry._11_21);
-            q_next.y = dot(next, transform_geometry._12_22);
+            q_next = float2(dot(next, transform_geometry._11_21), dot(next, transform_geometry._12_22));
             q_next = normalize(q_next);
 
             /* tan(½θ) = sin(θ) / (1 + cos(θ))
@@ -1930,21 +1928,19 @@ HRESULT d2d_d3d_render_target_init(struct d2d_d3d_render_target *render_target,
             v_p = float2(-q_prev.y, q_prev.x);
             l = -dot(v_p, q_next) / (1.0f + dot(q_prev, q_next));
             q_i = l * q_prev + v_p;
-            if (l < 0.0f)
-                q_i *= -1.0f;
             position = mul(float3(position, 1.0f), transform_geometry) + stroke_width * 0.5f * q_i;
 
             return float4(mul(float2x3(transform_rtx.xyz * transform_rtx.w, transform_rty.xyz * transform_rty.w),
                     float3(position.xy, 1.0f)) + float2(-1.0f, 1.0f), 0.0f, 1.0f);
         }
 #endif
-        0x43425844, 0xb58748c9, 0x99343e01, 0x92198e38, 0x667ab784, 0x00000001, 0x000004c0, 0x00000003,
+        0x43425844, 0xe88f7af5, 0x480b101b, 0xfd80f66b, 0xd878e0b8, 0x00000001, 0x0000047c, 0x00000003,
         0x0000002c, 0x00000098, 0x000000cc, 0x4e475349, 0x00000064, 0x00000003, 0x00000008, 0x00000050,
         0x00000000, 0x00000000, 0x00000003, 0x00000000, 0x00000303, 0x00000059, 0x00000000, 0x00000000,
         0x00000003, 0x00000001, 0x00000303, 0x0000005e, 0x00000000, 0x00000000, 0x00000003, 0x00000002,
         0x00000303, 0x49534f50, 0x4e4f4954, 0x45525000, 0x454e0056, 0xab005458, 0x4e47534f, 0x0000002c,
         0x00000001, 0x00000008, 0x00000020, 0x00000000, 0x00000001, 0x00000003, 0x00000000, 0x0000000f,
-        0x505f5653, 0x5449534f, 0x004e4f49, 0x52444853, 0x000003ec, 0x00010040, 0x000000fb, 0x04000059,
+        0x505f5653, 0x5449534f, 0x004e4f49, 0x52444853, 0x000003a8, 0x00010040, 0x000000ea, 0x04000059,
         0x00208e46, 0x00000000, 0x00000004, 0x0300005f, 0x00101032, 0x00000000, 0x0300005f, 0x00101032,
         0x00000001, 0x0300005f, 0x00101032, 0x00000002, 0x04000067, 0x001020f2, 0x00000000, 0x00000001,
         0x02000068, 0x00000003, 0x0800000f, 0x00100012, 0x00000000, 0x00101046, 0x00000002, 0x00208046,
@@ -1960,22 +1956,20 @@ HRESULT d2d_d3d_render_target_init(struct d2d_d3d_render_target *render_target,
         0x00000000, 0x00100a26, 0x00000001, 0x00100046, 0x00000000, 0x0700000f, 0x00100012, 0x00000000,
         0x00100046, 0x00000001, 0x00100046, 0x00000000, 0x07000000, 0x00100012, 0x00000000, 0x0010000a,
         0x00000000, 0x00004001, 0x3f800000, 0x0800000e, 0x00100012, 0x00000000, 0x8010002a, 0x00000041,
-        0x00000000, 0x0010000a, 0x00000000, 0x09000032, 0x00100062, 0x00000000, 0x00100006, 0x00000000,
-        0x00100106, 0x00000001, 0x00100cf6, 0x00000001, 0x07000031, 0x00100012, 0x00000000, 0x0010000a,
-        0x00000000, 0x00004001, 0x00000000, 0x0a000037, 0x00100032, 0x00000000, 0x00100006, 0x00000000,
-        0x80100596, 0x00000041, 0x00000000, 0x00100596, 0x00000000, 0x08000038, 0x00100042, 0x00000000,
-        0x0020803a, 0x00000000, 0x00000001, 0x00004001, 0x3f000000, 0x05000036, 0x00100032, 0x00000001,
-        0x00101046, 0x00000000, 0x05000036, 0x00100042, 0x00000001, 0x00004001, 0x3f800000, 0x08000010,
-        0x00100012, 0x00000002, 0x00100246, 0x00000001, 0x00208246, 0x00000000, 0x00000000, 0x08000010,
-        0x00100022, 0x00000002, 0x00100246, 0x00000001, 0x00208246, 0x00000000, 0x00000001, 0x09000032,
-        0x00100032, 0x00000000, 0x00100aa6, 0x00000000, 0x00100046, 0x00000000, 0x00100046, 0x00000002,
-        0x09000038, 0x00100072, 0x00000001, 0x00208ff6, 0x00000000, 0x00000002, 0x00208246, 0x00000000,
-        0x00000002, 0x05000036, 0x00100042, 0x00000000, 0x00004001, 0x3f800000, 0x07000010, 0x00100012,
-        0x00000001, 0x00100246, 0x00000001, 0x00100246, 0x00000000, 0x09000038, 0x00100072, 0x00000002,
-        0x00208ff6, 0x00000000, 0x00000003, 0x00208246, 0x00000000, 0x00000003, 0x07000010, 0x00100022,
-        0x00000001, 0x00100246, 0x00000002, 0x00100246, 0x00000000, 0x0a000000, 0x00102032, 0x00000000,
-        0x00100046, 0x00000001, 0x00004002, 0xbf800000, 0x3f800000, 0x00000000, 0x00000000, 0x08000036,
-        0x001020c2, 0x00000000, 0x00004002, 0x00000000, 0x00000000, 0x00000000, 0x3f800000, 0x0100003e,
+        0x00000000, 0x0010000a, 0x00000000, 0x09000032, 0x00100032, 0x00000000, 0x00100006, 0x00000000,
+        0x00100046, 0x00000001, 0x00100f36, 0x00000001, 0x08000038, 0x00100042, 0x00000000, 0x0020803a,
+        0x00000000, 0x00000001, 0x00004001, 0x3f000000, 0x05000036, 0x00100032, 0x00000001, 0x00101046,
+        0x00000000, 0x05000036, 0x00100042, 0x00000001, 0x00004001, 0x3f800000, 0x08000010, 0x00100012,
+        0x00000002, 0x00100246, 0x00000001, 0x00208246, 0x00000000, 0x00000000, 0x08000010, 0x00100022,
+        0x00000002, 0x00100246, 0x00000001, 0x00208246, 0x00000000, 0x00000001, 0x09000032, 0x00100032,
+        0x00000000, 0x00100aa6, 0x00000000, 0x00100046, 0x00000000, 0x00100046, 0x00000002, 0x09000038,
+        0x00100072, 0x00000001, 0x00208ff6, 0x00000000, 0x00000002, 0x00208246, 0x00000000, 0x00000002,
+        0x05000036, 0x00100042, 0x00000000, 0x00004001, 0x3f800000, 0x07000010, 0x00100012, 0x00000001,
+        0x00100246, 0x00000001, 0x00100246, 0x00000000, 0x09000038, 0x00100072, 0x00000002, 0x00208ff6,
+        0x00000000, 0x00000003, 0x00208246, 0x00000000, 0x00000003, 0x07000010, 0x00100022, 0x00000001,
+        0x00100246, 0x00000002, 0x00100246, 0x00000000, 0x0a000000, 0x00102032, 0x00000000, 0x00100046,
+        0x00000001, 0x00004002, 0xbf800000, 0x3f800000, 0x00000000, 0x00000000, 0x08000036, 0x001020c2,
+        0x00000000, 0x00004002, 0x00000000, 0x00000000, 0x00000000, 0x3f800000, 0x0100003e,
     };
     static const DWORD vs_code_triangle[] =
     {
diff --git a/dlls/d2d1/tests/d2d1.c b/dlls/d2d1/tests/d2d1.c
index 7dccbd7..ec2c2d1 100644
--- a/dlls/d2d1/tests/d2d1.c
+++ b/dlls/d2d1/tests/d2d1.c
@@ -3680,6 +3680,7 @@ static void test_draw_geometry(void)
 
     ID2D1GeometrySink_SetFillMode(sink, D2D1_FILL_MODE_ALTERNATE);
     hr = ID2D1GeometrySink_Close(sink);
+    ok(SUCCEEDED(hr), "Failed to close geometry sink, hr %#x.\n", hr);
     ID2D1GeometrySink_Release(sink);
 
     ID2D1RenderTarget_BeginDraw(rt);
@@ -3738,7 +3739,7 @@ static void test_draw_geometry(void)
             "CgIKiwEUjAEUjQESjgESjwEQkAEQkQEOkgEOkwEMlAEMlQEKlgEKlwEImAEImQEGmgEGmwEEnAEE"
             "nQECngECrycA");
     ok(match, "Figure does not match.\n");
-    match = compare_figure(surface, 320, 320, 160, 160, 0xff652e89, 2,
+    match = compare_figure(surface, 320, 320, 160, 160, 0xff652e89, 0,
             "rycCngECnQEEnAEEmwEGmgEGmQEImAEIlwEKlgEKlQEMlAEMkwEOkgEOkQEQkAEQjwESjgESjQEU"
             "jAEUiwEKAgqKAQoCCokBCgQKiAEKBAqHAQoGCoYBCgYKhQEKCAqEAQoICoMBCgoKggEKCgqBAQoM"
             "CoABCgwKfwoOCn4KDgp9ChAKfAoQCnsKEgp6ChIKeQoUCngKFAp3ChYKdgoWCnUKGAp0ChgKcwoa"
-- 
2.1.4




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