Learning_GTK4_tree/gsk/vulkan/gskvulkantextureop.c

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2023-12-12 11:36:42 +01:00
#include "config.h"
#include "gskvulkantextureopprivate.h"
#include "gskvulkanprivate.h"
#include "gskvulkanshaderopprivate.h"
#include "vulkan/resources/texture.vert.h"
typedef struct _GskVulkanTextureOp GskVulkanTextureOp;
struct _GskVulkanTextureOp
{
GskVulkanShaderOp op;
GskVulkanRenderSampler sampler;
graphene_rect_t rect;
graphene_rect_t tex_rect;
guint32 image_descriptor;
};
static void
gsk_vulkan_texture_op_print (GskVulkanOp *op,
GString *string,
guint indent)
{
GskVulkanTextureOp *self = (GskVulkanTextureOp *) op;
GskVulkanShaderOp *shader = (GskVulkanShaderOp *) op;
print_indent (string, indent);
print_rect (string, &self->rect);
g_string_append (string, "texture ");
print_image (string, shader->images[0]);
print_newline (string);
}
static void
gsk_vulkan_texture_op_collect_vertex_data (GskVulkanOp *op,
guchar *data)
{
GskVulkanTextureOp *self = (GskVulkanTextureOp *) op;
GskVulkanTextureInstance *instance = (GskVulkanTextureInstance *) (data + ((GskVulkanShaderOp *) op)->vertex_offset);
instance->rect[0] = self->rect.origin.x;
instance->rect[1] = self->rect.origin.y;
instance->rect[2] = self->rect.size.width;
instance->rect[3] = self->rect.size.height;
instance->tex_rect[0] = self->tex_rect.origin.x;
instance->tex_rect[1] = self->tex_rect.origin.y;
instance->tex_rect[2] = self->tex_rect.size.width;
instance->tex_rect[3] = self->tex_rect.size.height;
instance->tex_id = self->image_descriptor;
}
static void
gsk_vulkan_texture_op_reserve_descriptor_sets (GskVulkanOp *op,
GskVulkanRender *render)
{
GskVulkanTextureOp *self = (GskVulkanTextureOp *) op;
GskVulkanShaderOp *shader = (GskVulkanShaderOp *) op;
self->image_descriptor = gsk_vulkan_render_get_image_descriptor (render, shader->images[0], self->sampler);
}
static const GskVulkanShaderOpClass GSK_VULKAN_TEXTURE_OP_CLASS = {
{
GSK_VULKAN_OP_SIZE (GskVulkanTextureOp),
GSK_VULKAN_STAGE_SHADER,
gsk_vulkan_shader_op_finish,
gsk_vulkan_texture_op_print,
gsk_vulkan_shader_op_count_vertex_data,
gsk_vulkan_texture_op_collect_vertex_data,
gsk_vulkan_texture_op_reserve_descriptor_sets,
gsk_vulkan_shader_op_command
},
"texture",
1,
&gsk_vulkan_texture_info,
};
void
gsk_vulkan_texture_op (GskVulkanRender *render,
GskVulkanShaderClip clip,
GskVulkanImage *image,
GskVulkanRenderSampler sampler,
const graphene_rect_t *rect,
const graphene_point_t *offset,
const graphene_rect_t *tex_rect)
{
GskVulkanTextureOp *self;
self = (GskVulkanTextureOp *) gsk_vulkan_shader_op_alloc (render,
&GSK_VULKAN_TEXTURE_OP_CLASS,
clip,
&image);
self->sampler = sampler;
graphene_rect_offset_r (rect, offset->x, offset->y, &self->rect);
gsk_vulkan_normalize_tex_coords (&self->tex_rect, rect, tex_rect);
}