gtk/gsk/gpu/gskgpuuberop.c
Benjamin Otte d900407a18 gpu: Introduce the concept of "variation"
A variation is a #define/specialization constant that every shader can
use to specialize itself as it sees fit.

This commit adds the infrastrcture, future commits will add
implementations.
2024-01-07 07:22:53 +01:00

74 lines
1.8 KiB
C

#include "config.h"
#include "gskgpuuberopprivate.h"
#include "gskgpuframeprivate.h"
#include "gskgpuprintprivate.h"
#include "gskgpushaderopprivate.h"
#include "gskrectprivate.h"
#include "gpu/shaders/gskgpuuberinstance.h"
typedef struct _GskGpuUberOp GskGpuUberOp;
struct _GskGpuUberOp
{
GskGpuShaderOp op;
};
static void
gsk_gpu_uber_op_print (GskGpuOp *op,
GskGpuFrame *frame,
GString *string,
guint indent)
{
GskGpuShaderOp *shader = (GskGpuShaderOp *) op;
GskGpuUberInstance *instance;
instance = (GskGpuUberInstance *) gsk_gpu_frame_get_vertex_data (frame, shader->vertex_offset);
gsk_gpu_print_op (string, indent, "uber");
gsk_gpu_print_rect (string, instance->rect);
gsk_gpu_print_newline (string);
}
static const GskGpuShaderOpClass GSK_GPU_UBER_OP_CLASS = {
{
GSK_GPU_OP_SIZE (GskGpuUberOp),
GSK_GPU_STAGE_SHADER,
gsk_gpu_shader_op_finish,
gsk_gpu_uber_op_print,
#ifdef GDK_RENDERING_VULKAN
gsk_gpu_shader_op_vk_command,
#endif
gsk_gpu_shader_op_gl_command
},
"gskgpuuber",
sizeof (GskGpuUberInstance),
#ifdef GDK_RENDERING_VULKAN
&gsk_gpu_uber_info,
#endif
gsk_gpu_uber_setup_vao
};
void
gsk_gpu_uber_op (GskGpuFrame *frame,
GskGpuShaderClip clip,
const graphene_rect_t *rect,
const graphene_point_t *offset,
GskGpuDescriptors *desc,
guint32 pattern_id)
{
GskGpuUberInstance *instance;
gsk_gpu_shader_op_alloc (frame,
&GSK_GPU_UBER_OP_CLASS,
0,
clip,
desc,
&instance);
gsk_gpu_rect_to_float (rect, offset, instance->rect);
instance->pattern_id = pattern_id;
}