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gpu: Make box shadow shader use variations

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Use it do differentiate between inset and outset shadows.
This commit is contained in:
Benjamin Otte 2023-12-31 06:04:08 +01:00
parent d900407a18
commit 2e81e4d452
2 changed files with 9 additions and 9 deletions
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7
gsk/gpu/gskgpuboxshadowop.c
View File

@ -10,6 +10,8 @@
#include "gpu/shaders/gskgpuboxshadowinstance.h"
#define VARIATION_INSET 1
typedef struct _GskGpuBoxShadowOp GskGpuBoxShadowOp;
struct _GskGpuBoxShadowOp
@ -28,7 +30,7 @@ gsk_gpu_box_shadow_op_print (GskGpuOp *op,
instance = (GskGpuBoxshadowInstance *) gsk_gpu_frame_get_vertex_data (frame, shader->vertex_offset);
gsk_gpu_print_op (string, indent, instance->inset ? "inset-shadow" : "outset-shadow");
gsk_gpu_print_op (string, indent, shader->variation & VARIATION_INSET ? "inset-shadow" : "outset-shadow");
gsk_gpu_print_rounded_rect (string, instance->outline);
gsk_gpu_print_rgba (string, instance->color);
g_string_append_printf (string, "%g %g %g %g ",
@ -93,7 +95,7 @@ gsk_gpu_box_shadow_op (GskGpuFrame *frame,
gsk_gpu_shader_op_alloc (frame,
&GSK_GPU_BOX_SHADOW_OP_CLASS,
0,
inset ? VARIATION_INSET : 0,
clip,
NULL,
&instance);
@ -105,6 +107,5 @@ gsk_gpu_box_shadow_op (GskGpuFrame *frame,
instance->shadow_offset[1] = shadow_offset->y;
instance->shadow_spread = spread;
instance->blur_radius = blur_radius;
instance->inset = inset ? 1 : 0;
}

11
gsk/gpu/shaders/gskgpuboxshadow.glsl
View File

@ -2,12 +2,13 @@
/* blur radius (aka in_blur_direction) 0 is NOT supported and MUST be caught before */
#define VARIATION_INSET ((GSK_VARIATION & 1u) == 1u)
PASS(0) vec2 _pos;
PASS_FLAT(1) RoundedRect _shadow_outline;
PASS_FLAT(4) RoundedRect _clip_outline;
PASS_FLAT(7) vec4 _color;
PASS_FLAT(8) vec2 _sigma;
PASS_FLAT(9) uint _inset;
#ifdef GSK_VERTEX_SHADER
@ -17,7 +18,6 @@ IN(4) vec4 in_color;
IN(5) vec2 in_shadow_offset;
IN(6) float in_shadow_spread;
IN(7) float in_blur_radius;
IN(8) uint in_inset;
#define GAUSSIAN_SCALE_FACTOR ((3.0 * sqrt(2.0 * PI) / 4.0))
@ -32,7 +32,7 @@ run (out vec2 pos)
_clip_outline = outline;
RoundedRect inside;
if (in_inset == 0u)
if (!VARIATION_INSET)
{
inside = outline;
spread = -spread;
@ -53,7 +53,6 @@ run (out vec2 pos)
_shadow_outline = outline;
_color = in_color;
_sigma = GSK_GLOBAL_SCALE * 0.5 * in_blur_radius;
_inset = in_inset;
}
#endif
@ -141,7 +140,7 @@ run (out vec4 color,
{
float clip_alpha = rounded_rect_coverage (_clip_outline, _pos);
if (_inset == 0u)
if (!VARIATION_INSET)
clip_alpha = 1.0 - clip_alpha;
if (clip_alpha == 0.0)
@ -152,7 +151,7 @@ run (out vec4 color,
}
float blur_alpha = blur_rounded_rect (_shadow_outline, _pos);
if (_inset == 1u)
if (VARIATION_INSET)
blur_alpha = 1.0 - blur_alpha;
color = clip_alpha * _color * blur_alpha;