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new backend: xrender: fix INVER_COLOR_ALL 

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Yuxuan Shui 2019-05-21 22:15:38 +01:00
parent 294aae11ff
commit b9a3b67f9c
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GPG Key ID: 37C999F617EA1A47
1 changed files with 10 additions and 15 deletions
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25
src/backend/xrender/xrender.c
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@ -22,8 +22,6 @@
#include "win.h"
#include "x.h"
#define auto __auto_type
typedef struct _xrender_data {
backend_t base;
/// If vsync is enabled and supported by the current system
@ -90,7 +88,7 @@ static void compose(backend_t *base, void *img_data, int dst_x, int dst_y,
struct _xrender_data *xd = (void *)base;
struct _xrender_image_data *img = img_data;
uint8_t op = (img->has_alpha ? XCB_RENDER_PICT_OP_OVER : XCB_RENDER_PICT_OP_SRC);
auto alpha_pict = xd->alpha_pict[(int)(img->opacity * 255.0)];
auto alpha_pict = xd->alpha_pict[(int)(img->opacity * MAX_ALPHA)];
region_t reg;
pixman_region32_init(&reg);
pixman_region32_intersect(&reg, (region_t *)reg_paint, (region_t *)reg_visible);
@ -106,8 +104,7 @@ static void compose(backend_t *base, void *img_data, int dst_x, int dst_y,
pixman_region32_fini(&reg);
}
static void
fill(backend_t *base, struct color c, const region_t *clip) {
static void fill(backend_t *base, struct color c, const region_t *clip) {
struct _xrender_data *xd = (void *)base;
const rect_t *extent = pixman_region32_extents((region_t *)clip);
x_set_picture_clip_region(base->c, xd->back[xd->curr_back], 0, 0, clip);
@ -170,7 +167,7 @@ static bool blur(backend_t *backend_data, double opacity, const region_t *reg_bl
// The multipass blur implemented here is not correct, but this is what old
// compton did anyway. XXX
xcb_render_picture_t src_pict = xd->back[xd->curr_back], dst_pict = tmp_picture[0];
auto alpha_pict = xd->alpha_pict[(int)(opacity * 255)];
auto alpha_pict = xd->alpha_pict[(int)(opacity * MAX_ALPHA)];
int current = 0;
x_set_picture_clip_region(c, src_pict, 0, 0, &reg_op);
@ -380,10 +377,8 @@ static bool image_op(backend_t *base, enum image_operations op, void *image,
XCB_NONE, tmp_pict, 0, 0, 0, 0, 0, 0, tmpw, tmph);
xcb_render_composite(base->c, XCB_RENDER_PICT_OP_DIFFERENCE,
xd->white_pixel, XCB_NONE, tmp_pict, 0, 0, 0,
xd->white_pixel, XCB_NONE, img->pict, 0, 0, 0,
0, 0, 0, tmpw, tmph);
// We use an extra PictOpInReverse operation to get correct pixel
// alpha. There could be a better solution.
xcb_render_composite(base->c, XCB_RENDER_PICT_OP_IN_REVERSE,
tmp_pict, XCB_NONE, img->pict, 0, 0, 0, 0, 0,
0, tmpw, tmph);
@ -422,10 +417,10 @@ static bool image_op(backend_t *base, enum image_operations op, void *image,
break;
}
auto alpha_pict = xd->alpha_pict[(int)((1-dargs[0]) * 255)];
auto alpha_pict = xd->alpha_pict[(int)((1 - dargs[0]) * MAX_ALPHA)];
x_set_picture_clip_region(base->c, img->pict, 0, 0, &reg);
xcb_render_composite(base->c, XCB_RENDER_PICT_OP_OUT_REVERSE, alpha_pict, XCB_NONE,
img->pict, 0, 0, 0, 0, 0, 0, tmpw, tmph);
xcb_render_composite(base->c, XCB_RENDER_PICT_OP_OUT_REVERSE, alpha_pict,
XCB_NONE, img->pict, 0, 0, 0, 0, 0, 0, tmpw, tmph);
img->has_alpha = true;
break;
case IMAGE_OP_RESIZE_TILE:
@ -465,7 +460,7 @@ static void *copy(backend_t *base, const void *image, const region_t *reg) {
}
xcb_render_picture_t alpha_pict =
img->opacity == 1 ? XCB_NONE : xd->alpha_pict[(int)(img->opacity * 255)];
img->opacity == 1 ? XCB_NONE : xd->alpha_pict[(int)(img->opacity * MAX_ALPHA)];
xcb_render_composite(base->c, XCB_RENDER_PICT_OP_SRC, img->pict, alpha_pict,
new_img->pict, 0, 0, 0, 0, 0, 0, to_u16_checked(img->width),
to_u16_checked(img->height));
@ -476,8 +471,8 @@ backend_t *backend_xrender_init(session_t *ps) {
auto xd = ccalloc(1, struct _xrender_data);
init_backend_base(&xd->base, ps);
for (int i = 0; i < 256; ++i) {
double o = (double)i / 255.0;
for (int i = 0; i <= MAX_ALPHA; ++i) {
double o = (double)i / (double)MAX_ALPHA;
xd->alpha_pict[i] = solid_picture(ps->c, ps->root, false, o, 0, 0, 0);
assert(xd->alpha_pict[i] != XCB_NONE);
}