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Fix shader invocation for cells output during resize

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Kovid Goyal
2019-03-03 12:32:05 +05:30
parent f2a1ff2584
commit 8b5f02bb0b
2 changed files with 23 additions and 13 deletions
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12
kitty/graphics.c
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@@ -523,8 +523,8 @@ cmp_by_zindex_and_image(const void *a_, const void *b_) {
}
static inline void
set_vertex_data(ImageRenderData *rd, const ImageRef *ref, const ImageRect *source_rect) {
#define R(n, a, b) rd->vertices[n*4] = ref->src_rect.a; rd->vertices[n*4 + 1] = ref->src_rect.b; rd->vertices[n*4 + 2] = source_rect->a; rd->vertices[n*4 + 3] = source_rect->b;
set_vertex_data(ImageRenderData *rd, const ImageRef *ref, const ImageRect *dest_rect) {
#define R(n, a, b) rd->vertices[n*4] = ref->src_rect.a; rd->vertices[n*4 + 1] = ref->src_rect.b; rd->vertices[n*4 + 2] = dest_rect->a; rd->vertices[n*4 + 3] = dest_rect->b;
R(0, right, top); R(1, right, bottom); R(2, left, bottom); R(3, left, top);
#undef R
}
@@ -533,10 +533,10 @@ void
gpu_data_for_centered_image(ImageRenderData *ans, unsigned int screen_width_px, unsigned int screen_height_px, unsigned int width, unsigned int height) {
static const ImageRef source_rect = { .src_rect = { .left=0, .top=0, .bottom=1, .right=1 }};
const ImageRef *ref = &source_rect;
float width_frac = width / (float)screen_width_px, height_frac = height / (float)screen_height_px;
float hmargin = MAX(0, 2 - width_frac) / 2;
float vmargin = MAX(0, 2 - height_frac) / 2;
const ImageRect r = { .left = -1 + hmargin, .right = -1 + hmargin + width_frac, .top = -1 + vmargin, .bottom = -1 + vmargin + height_frac };
float width_frac = 2 * MIN(1, width / (float)screen_width_px), height_frac = 2 * MIN(1, height / (float)screen_height_px);
float hmargin = (2 - width_frac) / 2;
float vmargin = (2 - height_frac) / 2;
const ImageRect r = { .left = -1 + hmargin, .right = -1 + hmargin + width_frac, .top = 1 - vmargin, .bottom = 1 - vmargin - height_frac };
set_vertex_data(ans, ref, &r);
}