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| /************************************************************************** |
| * |
| * Copyright 2009 VMware, Inc. All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sub license, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial portions |
| * of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
| * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR |
| * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| * |
| **************************************************************************/ |
| |
| #ifndef VG_CONTEXT_H |
| #define VG_CONTEXT_H |
| |
| #include "vg_state.h" |
| |
| #include "pipe/p_format.h" |
| #include "pipe/p_state.h" |
| #include "util/u_pointer.h" |
| #include "util/u_math.h" |
| #include "state_tracker/st_api.h" |
| |
| #include "cso_cache/cso_hash.h" |
| #include "cso_cache/cso_context.h" |
| |
| struct renderer; |
| struct shaders_cache; |
| struct shader; |
| struct vg_shader; |
| struct mapi_table; |
| |
| struct st_renderbuffer { |
| enum pipe_format format; |
| struct pipe_surface *surface; |
| struct pipe_resource *texture; |
| VGint width, height; |
| }; |
| |
| struct st_framebuffer { |
| VGint width, height; |
| struct st_renderbuffer *strb; |
| struct st_renderbuffer *dsrb; |
| |
| struct pipe_sampler_view *surface_mask_view; |
| |
| struct pipe_sampler_view *blend_texture_view; |
| |
| |
| struct st_framebuffer_iface *iface; |
| enum st_attachment_type strb_att; |
| |
| void *privateData; |
| int32_t stamp; |
| int32_t iface_stamp; |
| }; |
| |
| enum vg_object_type { |
| VG_OBJECT_UNKNOWN = 0, |
| VG_OBJECT_PAINT, |
| VG_OBJECT_IMAGE, |
| VG_OBJECT_MASK, |
| VG_OBJECT_FONT, |
| VG_OBJECT_PATH, |
| |
| VG_OBJECT_LAST |
| }; |
| enum dirty_state { |
| BLEND_DIRTY = 1 << 0, |
| FRAMEBUFFER_DIRTY = 1 << 1, |
| DEPTH_STENCIL_DIRTY = 1 << 2, |
| PAINT_DIRTY = 1 << 3, |
| |
| ALL_DIRTY = BLEND_DIRTY | |
| FRAMEBUFFER_DIRTY | |
| DEPTH_STENCIL_DIRTY | |
| PAINT_DIRTY |
| }; |
| |
| struct vg_context |
| { |
| struct st_context_iface iface; |
| struct mapi_table *dispatch; |
| |
| struct pipe_context *pipe; |
| enum pipe_format ds_format; |
| |
| struct { |
| struct vg_state vg; |
| VGbitfield dirty; |
| } state; |
| |
| VGErrorCode _error; |
| |
| struct st_framebuffer *draw_buffer; |
| |
| struct cso_hash *owned_objects[VG_OBJECT_LAST]; |
| |
| struct { |
| struct pipe_resource *cbuf; |
| struct pipe_sampler_state sampler; |
| |
| struct vg_shader *union_fs; |
| struct vg_shader *intersect_fs; |
| struct vg_shader *subtract_fs; |
| struct vg_shader *set_fs; |
| } mask; |
| |
| struct cso_context *cso_context; |
| |
| struct renderer *renderer; |
| struct shaders_cache *sc; |
| struct shader *shader; |
| |
| struct pipe_sampler_state blend_sampler; |
| struct vg_paint *default_paint; |
| |
| struct blit_state *blit; |
| |
| int32_t draw_stamp; |
| }; |
| |
| |
| /** |
| * Base class for VG objects like paths, images, fonts. |
| */ |
| struct vg_object { |
| enum vg_object_type type; |
| VGHandle handle; |
| struct vg_context *ctx; |
| }; |
| |
| |
| void vg_init_object(struct vg_object *obj, struct vg_context *ctx, enum vg_object_type type); |
| void vg_free_object(struct vg_object *obj); |
| |
| VGboolean vg_object_is_valid(VGHandle object, enum vg_object_type type); |
| |
| struct vg_context *vg_create_context(struct pipe_context *pipe, |
| const void *visual, |
| struct vg_context *share); |
| void vg_destroy_context(struct vg_context *ctx); |
| struct vg_context *vg_current_context(void); |
| void vg_set_current_context(struct vg_context *ctx); |
| |
| VGboolean vg_context_is_object_valid(struct vg_context *ctx, |
| enum vg_object_type type, |
| VGHandle object); |
| void vg_context_add_object(struct vg_context *ctx, |
| struct vg_object *obj); |
| void vg_context_remove_object(struct vg_context *ctx, |
| struct vg_object *obj); |
| |
| void vg_validate_state(struct vg_context *ctx); |
| |
| void vg_set_error(struct vg_context *ctx, |
| VGErrorCode code); |
| |
| struct pipe_sampler_view *vg_prepare_blend_surface(struct vg_context *ctx); |
| struct pipe_sampler_view *vg_prepare_blend_surface_from_mask(struct vg_context *ctx); |
| |
| struct pipe_sampler_view *vg_get_surface_mask(struct vg_context *ctx); |
| |
| VGboolean vg_get_paint_matrix(struct vg_context *ctx, |
| const struct matrix *paint_to_user, |
| const struct matrix *user_to_surface, |
| struct matrix *mat); |
| |
| static INLINE VGboolean is_aligned_to(const void *ptr, VGbyte alignment) |
| { |
| void *aligned = align_pointer(ptr, alignment); |
| return (ptr == aligned) ? VG_TRUE : VG_FALSE; |
| } |
| |
| static INLINE VGboolean is_aligned(const void *ptr) |
| { |
| return is_aligned_to(ptr, 4); |
| } |
| |
| static INLINE void vg_shift_rectx(VGfloat coords[4], |
| const VGfloat *bounds, |
| const VGfloat shift) |
| { |
| coords[0] += shift; |
| coords[2] -= shift; |
| if (bounds) { |
| coords[2] = MIN2(coords[2], bounds[2]); |
| /* bound x/y + width/height */ |
| if ((coords[0] + coords[2]) > (bounds[0] + bounds[2])) { |
| coords[2] = (bounds[0] + bounds[2]) - coords[0]; |
| } |
| } |
| } |
| |
| static INLINE void vg_shift_recty(VGfloat coords[4], |
| const VGfloat *bounds, |
| const VGfloat shift) |
| { |
| coords[1] += shift; |
| coords[3] -= shift; |
| if (bounds) { |
| coords[3] = MIN2(coords[3], bounds[3]); |
| if ((coords[1] + coords[3]) > (bounds[1] + bounds[3])) { |
| coords[3] = (bounds[1] + bounds[3]) - coords[1]; |
| } |
| } |
| } |
| |
| static INLINE void vg_bound_rect(VGfloat coords[4], |
| const VGfloat bounds[4], |
| VGfloat shift[4]) |
| { |
| /* if outside the bounds */ |
| if (coords[0] > (bounds[0] + bounds[2]) || |
| coords[1] > (bounds[1] + bounds[3]) || |
| (coords[0] + coords[2]) < bounds[0] || |
| (coords[1] + coords[3]) < bounds[1]) { |
| coords[0] = 0.f; |
| coords[1] = 0.f; |
| coords[2] = 0.f; |
| coords[3] = 0.f; |
| shift[0] = 0.f; |
| shift[1] = 0.f; |
| return; |
| } |
| |
| /* bound x */ |
| if (coords[0] < bounds[0]) { |
| shift[0] = bounds[0] - coords[0]; |
| coords[2] -= shift[0]; |
| coords[0] = bounds[0]; |
| } else |
| shift[0] = 0.f; |
| |
| /* bound y */ |
| if (coords[1] < bounds[1]) { |
| shift[1] = bounds[1] - coords[1]; |
| coords[3] -= shift[1]; |
| coords[1] = bounds[1]; |
| } else |
| shift[1] = 0.f; |
| |
| shift[2] = bounds[2] - coords[2]; |
| shift[3] = bounds[3] - coords[3]; |
| /* bound width/height */ |
| coords[2] = MIN2(coords[2], bounds[2]); |
| coords[3] = MIN2(coords[3], bounds[3]); |
| |
| /* bound x/y + width/height */ |
| if ((coords[0] + coords[2]) > (bounds[0] + bounds[2])) { |
| coords[2] = (bounds[0] + bounds[2]) - coords[0]; |
| } |
| if ((coords[1] + coords[3]) > (bounds[1] + bounds[3])) { |
| coords[3] = (bounds[1] + bounds[3]) - coords[1]; |
| } |
| |
| /* if outside the bounds */ |
| if ((coords[0] + coords[2]) < bounds[0] || |
| (coords[1] + coords[3]) < bounds[1]) { |
| coords[0] = 0.f; |
| coords[1] = 0.f; |
| coords[2] = 0.f; |
| coords[3] = 0.f; |
| return; |
| } |
| } |
| |
| #endif |