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ae3efb2d2f
This allows handling them without ever needing to offscreen for losing the clip, because the clip can always be transformed. Also, all the optimizations keep working, like occlusion culling, clears, and so on. The main benefit of this work is the ability for offloading to now handle dihedral transforms of the video buffer. The other big advantage is that we can now start our rendering with a dihedral transform from the compositor.
78 lines
4.3 KiB
C
78 lines
4.3 KiB
C
#pragma once
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#include "gskgputypesprivate.h"
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#include <gdk/gdk.h>
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#include <graphene.h>
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#include <gsk/gskroundedrect.h>
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#include "gdk/gdkdihedralprivate.h"
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G_BEGIN_DECLS
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typedef enum {
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/* The whole area is clipped, no drawing is necessary.
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* This can't be handled by return values because for return
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* values we return if clips could even be computed.
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*/
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GSK_GPU_CLIP_ALL_CLIPPED,
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/* No clipping is necessary, but the clip rect is set
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* to the actual bounds of the underlying framebuffer
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* or handled via the scissor.
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*/
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GSK_GPU_CLIP_NONE,
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/* The clip exists outside the rect, so clipping must
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* happen if rendering can't be proven to stay in the rect */
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GSK_GPU_CLIP_CONTAINED,
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/* The clip is a rectangular area */
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GSK_GPU_CLIP_RECT,
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/* The clip is a rounded rectangle */
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GSK_GPU_CLIP_ROUNDED
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} GskGpuClipComplexity;
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typedef struct _GskGpuClip GskGpuClip;
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struct _GskGpuClip
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{
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GskGpuClipComplexity type;
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GskRoundedRect rect;
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};
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void gsk_gpu_clip_init_empty (GskGpuClip *clip,
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const graphene_rect_t *rect);
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void gsk_gpu_clip_init_contained (GskGpuClip *clip,
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const graphene_rect_t *rect);
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void gsk_gpu_clip_init_copy (GskGpuClip *self,
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const GskGpuClip *src);
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void gsk_gpu_clip_init_rect (GskGpuClip *clip,
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const graphene_rect_t *rect);
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gboolean gsk_gpu_clip_intersect_rect (GskGpuClip *dest,
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const GskGpuClip *src,
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const graphene_rect_t *rect) G_GNUC_WARN_UNUSED_RESULT;
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gboolean gsk_gpu_clip_intersect_rounded_rect (GskGpuClip *dest,
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const GskGpuClip *src,
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const GskRoundedRect *rounded) G_GNUC_WARN_UNUSED_RESULT;
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void gsk_gpu_clip_scale (GskGpuClip *dest,
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const GskGpuClip *src,
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GdkDihedral dihedral,
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float scale_x,
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float scale_y);
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gboolean gsk_gpu_clip_transform (GskGpuClip *dest,
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const GskGpuClip *src,
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GskTransform *transform,
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const graphene_rect_t *viewport) G_GNUC_WARN_UNUSED_RESULT;
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gboolean gsk_gpu_clip_contains_rect (const GskGpuClip *self,
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const graphene_point_t *offset,
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const graphene_rect_t *rect) G_GNUC_WARN_UNUSED_RESULT;
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gboolean gsk_gpu_clip_may_intersect_rect (const GskGpuClip *self,
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const graphene_point_t *offset,
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const graphene_rect_t *rect) G_GNUC_WARN_UNUSED_RESULT;
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GskGpuShaderClip gsk_gpu_clip_get_shader_clip (const GskGpuClip *self,
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const graphene_point_t *offset,
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const graphene_rect_t *rect);
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G_END_DECLS
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