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backend: gl: fix mask being inverted

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Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
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Yuxuan Shui 2022-08-26 05:28:19 +01:00
parent a29caeaf3d
commit 8c14d5354c
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GPG key ID: D3A4405BE6CC17F4
1 changed files with 4 additions and 1 deletions
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5
src/backend/gl/gl_common.c
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@ -351,6 +351,9 @@ static GLuint gl_average_texture_color(backend_t *base, struct backend_image *im
static void _gl_compose(backend_t *base, struct backend_image *img, GLuint target, static void _gl_compose(backend_t *base, struct backend_image *img, GLuint target,
struct backend_image *mask, coord_t mask_offset, GLint *coord, struct backend_image *mask, coord_t mask_offset, GLint *coord,
GLuint *indices, int nrects) { GLuint *indices, int nrects) {
// FIXME(yshui) breaks when `mask` and `img` doesn't have the same y_inverted
// value. but we don't ever hit this problem because all of our
// images and masks are y_inverted.
auto gd = (struct gl_data *)base; auto gd = (struct gl_data *)base;
auto inner = (struct gl_texture *)img->inner; auto inner = (struct gl_texture *)img->inner;
auto mask_texture = auto mask_texture =
@ -1199,7 +1202,7 @@ void *gl_shadow_from_mask(backend_t *base, void *mask,
new_inner->height = inner->height + radius * 2; new_inner->height = inner->height + radius * 2;
new_inner->texture = gl_new_texture(GL_TEXTURE_2D); new_inner->texture = gl_new_texture(GL_TEXTURE_2D);
new_inner->has_alpha = inner->has_alpha; new_inner->has_alpha = inner->has_alpha;
new_inner->y_inverted = false; new_inner->y_inverted = true;
auto new_img = default_new_backend_image(new_inner->width, new_inner->height); auto new_img = default_new_backend_image(new_inner->width, new_inner->height);
new_img->inner = (struct backend_image_inner_base *)new_inner; new_img->inner = (struct backend_image_inner_base *)new_inner;
new_img->inner->refcount = 1; new_img->inner->refcount = 1;