gtk/gsk/gpu/gskgpucolorizeop.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

79 lines
2.3 KiB
C

#include "config.h"
#include "gskgpucolorizeopprivate.h"
#include "gskgpuframeprivate.h"
#include "gskgpuprintprivate.h"
#include "gskrectprivate.h"
#include "gpu/shaders/gskgpucolorizeinstance.h"
typedef struct _GskGpuColorizeOp GskGpuColorizeOp;
struct _GskGpuColorizeOp
{
GskGpuShaderOp op;
};
static void
gsk_gpu_colorize_op_print (GskGpuOp *op,
GskGpuFrame *frame,
GString *string,
guint indent)
{
GskGpuShaderOp *shader = (GskGpuShaderOp *) op;
GskGpuColorizeInstance *instance;
instance = (GskGpuColorizeInstance *) gsk_gpu_frame_get_vertex_data (frame, shader->vertex_offset);
gsk_gpu_print_op (string, indent, "colorize");
gsk_gpu_print_rect (string, instance->rect);
gsk_gpu_print_image_descriptor (string, shader->desc, instance->tex_id);
gsk_gpu_print_rgba (string, instance->color);
gsk_gpu_print_newline (string);
}
static const GskGpuShaderOpClass GSK_GPU_COLORIZE_OP_CLASS = {
{
GSK_GPU_OP_SIZE (GskGpuColorizeOp),
GSK_GPU_STAGE_SHADER,
gsk_gpu_shader_op_finish,
gsk_gpu_colorize_op_print,
#ifdef GDK_RENDERING_VULKAN
gsk_gpu_shader_op_vk_command,
#endif
gsk_gpu_shader_op_gl_command
},
"gskgpucolorize",
sizeof (GskGpuColorizeInstance),
#ifdef GDK_RENDERING_VULKAN
&gsk_gpu_colorize_info,
#endif
gsk_gpu_colorize_setup_vao
};
void
gsk_gpu_colorize_op (GskGpuFrame *frame,
GskGpuShaderClip clip,
GskGpuDescriptors *descriptors,
guint32 descriptor,
const graphene_rect_t *rect,
const graphene_point_t *offset,
const graphene_rect_t *tex_rect,
const GdkRGBA *color)
{
GskGpuColorizeInstance *instance;
gsk_gpu_shader_op_alloc (frame,
&GSK_GPU_COLORIZE_OP_CLASS,
0,
clip,
descriptors,
&instance);
gsk_gpu_rect_to_float (rect, offset, instance->rect);
gsk_gpu_rect_to_float (tex_rect, offset, instance->tex_rect);
instance->tex_id = descriptor;
gsk_gpu_rgba_to_float (color, instance->color);
}