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-rw-r--r--src/gallium/state_trackers/vega/vg_context.h292
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diff --git a/src/gallium/state_trackers/vega/vg_context.h b/src/gallium/state_trackers/vega/vg_context.h
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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 "cso_cache/cso_hash.h"
+#include "cso_cache/cso_context.h"
+
+struct renderer;
+struct shaders_cache;
+struct shader;
+struct vg_shader;
+
+struct st_renderbuffer {
+ enum pipe_format format;
+ struct pipe_surface *surface;
+ struct pipe_texture *texture;
+ VGint width, height;
+};
+
+struct st_framebuffer {
+ VGint init_width, init_height;
+ struct st_renderbuffer *strb;
+ struct st_renderbuffer *dsrb;
+
+ struct pipe_texture *alpha_mask;
+
+ struct pipe_texture *blend_texture;
+
+ void *privateData;
+};
+
+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 {
+ NONE_DIRTY = 0<<0,
+ BLEND_DIRTY = 1<<1,
+ RASTERIZER_DIRTY = 1<<2,
+ VIEWPORT_DIRTY = 1<<3,
+ VS_DIRTY = 1<<4,
+ DEPTH_STENCIL_DIRTY = 1<<5,
+ ALL_DIRTY = BLEND_DIRTY | RASTERIZER_DIRTY |
+ VIEWPORT_DIRTY | VS_DIRTY | DEPTH_STENCIL_DIRTY
+};
+
+struct vg_context
+{
+ struct pipe_context *pipe;
+
+ struct {
+ struct vg_state vg;
+ struct {
+ struct pipe_blend_state blend;
+ struct pipe_rasterizer_state rasterizer;
+ struct pipe_shader_state vs_state;
+ struct pipe_depth_stencil_alpha_state dsa;
+ struct pipe_framebuffer_state fb;
+ } g3d;
+ VGbitfield dirty;
+ } state;
+
+ VGErrorCode _error;
+
+ struct st_framebuffer *draw_buffer;
+
+ struct cso_hash *owned_objects[VG_OBJECT_LAST];
+
+ struct {
+ struct pipe_shader_state vert_shader;
+ struct pipe_shader_state frag_shader;
+ struct pipe_rasterizer_state raster;
+ void *fs;
+ float vertices[4][2][4]; /**< vertex pos + color */
+ } clear;
+
+ struct {
+ struct pipe_constant_buffer 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 vg_shader *pass_through_depth_fs;
+
+ struct cso_context *cso_context;
+
+ struct pipe_buffer *stencil_quad;
+ VGfloat stencil_vertices[4][2][4];
+
+ struct renderer *renderer;
+ struct shaders_cache *sc;
+ struct shader *shader;
+
+ struct pipe_sampler_state blend_sampler;
+ struct {
+ struct pipe_constant_buffer buffer;
+ void *color_matrix_fs;
+ } filter;
+ struct vg_paint *default_paint;
+
+ struct blit_state *blit;
+
+ struct vg_shader *plain_vs;
+ struct vg_shader *clear_vs;
+ struct vg_shader *texture_vs;
+ struct pipe_constant_buffer vs_const_buffer;
+};
+
+struct vg_object {
+ enum vg_object_type type;
+ struct vg_context *ctx;
+};
+void vg_init_object(struct vg_object *obj, struct vg_context *ctx, enum vg_object_type type);
+VGboolean vg_object_is_valid(void *ptr, 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,
+ void *ptr);
+void vg_context_add_object(struct vg_context *ctx,
+ enum vg_object_type type,
+ void *ptr);
+void vg_context_remove_object(struct vg_context *ctx,
+ enum vg_object_type type,
+ void *ptr);
+
+void vg_validate_state(struct vg_context *ctx);
+
+void vg_set_error(struct vg_context *ctx,
+ VGErrorCode code);
+
+void vg_prepare_blend_surface(struct vg_context *ctx);
+void vg_prepare_blend_surface_from_mask(struct vg_context *ctx);
+
+
+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;
+ }
+}
+
+void *vg_plain_vs(struct vg_context *ctx);
+void *vg_clear_vs(struct vg_context *ctx);
+void *vg_texture_vs(struct vg_context *ctx);
+typedef enum {
+ VEGA_Y0_TOP,
+ VEGA_Y0_BOTTOM
+} VegaOrientation;
+void vg_set_viewport(struct vg_context *ctx, VegaOrientation orientation);
+
+#endif
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