Learning_GTK4_tree/gsk/vulkan/gskvulkanblurop.c

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2023-12-12 11:36:42 +01:00
#include "config.h"
#include "gskvulkanbluropprivate.h"
#include "gskvulkanprivate.h"
#include "gskvulkanshaderopprivate.h"
#include "vulkan/resources/blur.vert.h"
typedef struct _GskVulkanBlurOp GskVulkanBlurOp;
struct _GskVulkanBlurOp
{
GskVulkanShaderOp op;
graphene_rect_t rect;
graphene_rect_t tex_rect;
float radius;
guint32 image_descriptor;
};
static void
gsk_vulkan_blur_op_print (GskVulkanOp *op,
GString *string,
guint indent)
{
GskVulkanBlurOp *self = (GskVulkanBlurOp *) op;
print_indent (string, indent);
print_rect (string, &self->rect);
g_string_append_printf (string, "blur %g",
self->radius);
print_newline (string);
}
static void
gsk_vulkan_blur_op_collect_vertex_data (GskVulkanOp *op,
guchar *data)
{
GskVulkanBlurOp *self = (GskVulkanBlurOp *) op;
GskVulkanBlurInstance *instance = (GskVulkanBlurInstance *) (data + ((GskVulkanShaderOp *) op)->vertex_offset);
gsk_rect_to_float (&self->rect, instance->rect);
gsk_rect_to_float (&self->tex_rect, instance->tex_rect);
instance->tex_id = self->image_descriptor;
instance->radius = self->radius;
}
static void
gsk_vulkan_blur_op_reserve_descriptor_sets (GskVulkanOp *op,
GskVulkanRender *render)
{
GskVulkanBlurOp *self = (GskVulkanBlurOp *) op;
GskVulkanShaderOp *shader = (GskVulkanShaderOp *) op;
self->image_descriptor = gsk_vulkan_render_get_image_descriptor (render,
shader->images[0],
GSK_VULKAN_SAMPLER_DEFAULT);
}
static const GskVulkanShaderOpClass GSK_VULKAN_BLUR_OP_CLASS = {
{
GSK_VULKAN_OP_SIZE (GskVulkanBlurOp),
GSK_VULKAN_STAGE_SHADER,
gsk_vulkan_shader_op_finish,
gsk_vulkan_blur_op_print,
gsk_vulkan_shader_op_count_vertex_data,
gsk_vulkan_blur_op_collect_vertex_data,
gsk_vulkan_blur_op_reserve_descriptor_sets,
gsk_vulkan_shader_op_command
},
"blur",
1,
&gsk_vulkan_blur_info,
};
void
gsk_vulkan_blur_op (GskVulkanRender *render,
GskVulkanShaderClip clip,
GskVulkanImage *image,
const graphene_rect_t *rect,
const graphene_point_t *offset,
const graphene_rect_t *tex_rect,
float radius)
{
GskVulkanBlurOp *self;
g_assert (radius > 0);
self = (GskVulkanBlurOp *) gsk_vulkan_shader_op_alloc (render, &GSK_VULKAN_BLUR_OP_CLASS, clip, &image);
graphene_rect_offset_r (rect, offset->x, offset->y, &self->rect);
gsk_vulkan_normalize_tex_coords (&self->tex_rect, rect, tex_rect);
self->radius = radius;
}