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render/pixman: fix flipped transforms

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The translations for flipped offsets were set the same as non-flipped
ones which was totally wrong and meant that any textures with
flipped-transforms rendered entirely outside the viewport and were
basically invisible.
This commit is contained in:
David Turner 2024-04-22 15:53:59 +01:00 • committed by Simon Ser
parent 41fd552f53
commit 061b996768
1 changed files with 19 additions and 0 deletions
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19
render/pixman/pass.c
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@ -102,6 +102,22 @@ static void render_pass_add_texture(struct wlr_render_pass *wlr_pass,
break; break;
} }
switch (options->transform) {
case WL_OUTPUT_TRANSFORM_FLIPPED:
case WL_OUTPUT_TRANSFORM_FLIPPED_180:
tr_x = buffer->buffer->width - tr_x;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED_90:
case WL_OUTPUT_TRANSFORM_FLIPPED_270:
tr_x = buffer->buffer->height - tr_x;
break;
case WL_OUTPUT_TRANSFORM_NORMAL:
case WL_OUTPUT_TRANSFORM_90:
case WL_OUTPUT_TRANSFORM_180:
case WL_OUTPUT_TRANSFORM_270:
break;
}
struct pixman_transform transform; struct pixman_transform transform;
pixman_transform_init_identity(&transform); pixman_transform_init_identity(&transform);
pixman_transform_rotate(&transform, NULL, pixman_transform_rotate(&transform, NULL,
@ -110,6 +126,9 @@ static void render_pass_add_texture(struct wlr_render_pass *wlr_pass,
pixman_transform_scale(&transform, NULL, pixman_transform_scale(&transform, NULL,
pixman_int_to_fixed(-1), pixman_int_to_fixed(1)); pixman_int_to_fixed(-1), pixman_int_to_fixed(1));
} }
// pixman rotates about the origin, translate the result so that its new top-left
// corner is back at the origin.
pixman_transform_translate(&transform, NULL, pixman_transform_translate(&transform, NULL,
pixman_int_to_fixed(tr_x), pixman_int_to_fixed(tr_y)); pixman_int_to_fixed(tr_x), pixman_int_to_fixed(tr_y));
pixman_transform_translate(&transform, NULL, pixman_transform_translate(&transform, NULL,