shithub: dav1d

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get rid of variable length arrays in intra prediction

--- a/src/ipred.c

+++ b/src/ipred.c

@@ -454,7 +454,7 @@

     angle &= 511;

     assert(angle < 90);

     const int dx = dr_intra_derivative[angle];

-    pixel top_out[(width + height) * 2];

+    pixel top_out[(64 + 64) * 2];

     const pixel *top;

     int max_base_x;

     const int upsample_above = get_upsample(width + height, 90 - angle, is_sm);

@@ -519,7 +519,7 @@

     const int dx = dr_intra_derivative[180 - angle];

     const int upsample_left = get_upsample(width + height, 180 - angle, is_sm);

     const int upsample_above = get_upsample(width + height, angle - 90, is_sm);

-    pixel edge[width * 2 + height * 2 + 1];

+    pixel edge[64 * 2 + 64 * 2 + 1];

     pixel *const topleft = &edge[height * 2];

     if (upsample_above) {

@@ -597,7 +597,7 @@

     angle &= 511;

     assert(angle > 180);

     const int dy = dr_intra_derivative[270 - angle];

-    pixel left_out[(width + height) * 2];

+    pixel left_out[(64 + 64) * 2];

     const pixel *left;

     int max_base_y;

     const int upsample_left = get_upsample(width + height, angle - 180, is_sm);