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Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_inlines.h')
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_inlines.h | 459 |
1 files changed, 459 insertions, 0 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_inlines.h b/mesalib/src/gallium/auxiliary/util/u_inlines.h new file mode 100644 index 000000000..ad47439d0 --- /dev/null +++ b/mesalib/src/gallium/auxiliary/util/u_inlines.h @@ -0,0 +1,459 @@ +/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN GRAPHICS 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 U_INLINES_H
+#define U_INLINES_H
+
+#include "pipe/p_context.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_state.h"
+#include "pipe/p_screen.h"
+#include "util/u_debug.h"
+#include "util/u_debug_describe.h"
+#include "util/u_debug_refcnt.h"
+#include "util/u_atomic.h"
+#include "util/u_box.h"
+#include "util/u_math.h"
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/*
+ * Reference counting helper functions.
+ */
+
+
+static INLINE void
+pipe_reference_init(struct pipe_reference *reference, unsigned count)
+{
+ p_atomic_set(&reference->count, count);
+}
+
+static INLINE boolean
+pipe_is_referenced(struct pipe_reference *reference)
+{
+ return p_atomic_read(&reference->count) != 0;
+}
+
+/**
+ * Update reference counting.
+ * The old thing pointed to, if any, will be unreferenced.
+ * Both 'ptr' and 'reference' may be NULL.
+ * \return TRUE if the object's refcount hits zero and should be destroyed.
+ */
+static INLINE boolean
+pipe_reference_described(struct pipe_reference *ptr,
+ struct pipe_reference *reference,
+ debug_reference_descriptor get_desc)
+{
+ boolean destroy = FALSE;
+
+ if(ptr != reference) {
+ /* bump the reference.count first */
+ if (reference) {
+ assert(pipe_is_referenced(reference));
+ p_atomic_inc(&reference->count);
+ debug_reference(reference, get_desc, 1);
+ }
+
+ if (ptr) {
+ assert(pipe_is_referenced(ptr));
+ if (p_atomic_dec_zero(&ptr->count)) {
+ destroy = TRUE;
+ }
+ debug_reference(ptr, get_desc, -1);
+ }
+ }
+
+ return destroy;
+}
+
+static INLINE boolean
+pipe_reference(struct pipe_reference *ptr, struct pipe_reference *reference)
+{
+ return pipe_reference_described(ptr, reference,
+ (debug_reference_descriptor)debug_describe_reference);
+}
+
+static INLINE void
+pipe_surface_reference(struct pipe_surface **ptr, struct pipe_surface *surf)
+{
+ struct pipe_surface *old_surf = *ptr;
+
+ if (pipe_reference_described(&(*ptr)->reference, &surf->reference,
+ (debug_reference_descriptor)debug_describe_surface))
+ old_surf->context->surface_destroy(old_surf->context, old_surf);
+ *ptr = surf;
+}
+
+static INLINE void
+pipe_resource_reference(struct pipe_resource **ptr, struct pipe_resource *tex)
+{
+ struct pipe_resource *old_tex = *ptr;
+
+ if (pipe_reference_described(&(*ptr)->reference, &tex->reference,
+ (debug_reference_descriptor)debug_describe_resource))
+ old_tex->screen->resource_destroy(old_tex->screen, old_tex);
+ *ptr = tex;
+}
+
+static INLINE void
+pipe_sampler_view_reference(struct pipe_sampler_view **ptr, struct pipe_sampler_view *view)
+{
+ struct pipe_sampler_view *old_view = *ptr;
+
+ if (pipe_reference_described(&(*ptr)->reference, &view->reference,
+ (debug_reference_descriptor)debug_describe_sampler_view))
+ old_view->context->sampler_view_destroy(old_view->context, old_view);
+ *ptr = view;
+}
+
+static INLINE void
+pipe_surface_reset(struct pipe_context *ctx, struct pipe_surface* ps,
+ struct pipe_resource *pt, unsigned level, unsigned layer,
+ unsigned flags)
+{
+ pipe_resource_reference(&ps->texture, pt);
+ ps->format = pt->format;
+ ps->width = u_minify(pt->width0, level);
+ ps->height = u_minify(pt->height0, level);
+ ps->usage = flags;
+ ps->u.tex.level = level;
+ ps->u.tex.first_layer = ps->u.tex.last_layer = layer;
+ ps->context = ctx;
+}
+
+static INLINE void
+pipe_surface_init(struct pipe_context *ctx, struct pipe_surface* ps,
+ struct pipe_resource *pt, unsigned level, unsigned layer,
+ unsigned flags)
+{
+ ps->texture = 0;
+ pipe_reference_init(&ps->reference, 1);
+ pipe_surface_reset(ctx, ps, pt, level, layer, flags);
+}
+
+/* Return true if the surfaces are equal. */
+static INLINE boolean
+pipe_surface_equal(struct pipe_surface *s1, struct pipe_surface *s2)
+{
+ return s1->texture == s2->texture &&
+ s1->format == s2->format &&
+ (s1->texture->target != PIPE_BUFFER ||
+ (s1->u.buf.first_element == s2->u.buf.first_element &&
+ s1->u.buf.last_element == s2->u.buf.last_element)) &&
+ (s1->texture->target == PIPE_BUFFER ||
+ (s1->u.tex.level == s2->u.tex.level &&
+ s1->u.tex.first_layer == s2->u.tex.first_layer &&
+ s1->u.tex.last_layer == s2->u.tex.last_layer));
+}
+
+/*
+ * Convenience wrappers for screen buffer functions.
+ */
+
+static INLINE struct pipe_resource *
+pipe_buffer_create( struct pipe_screen *screen,
+ unsigned bind,
+ unsigned usage,
+ unsigned size )
+{
+ struct pipe_resource buffer;
+ memset(&buffer, 0, sizeof buffer);
+ buffer.target = PIPE_BUFFER;
+ buffer.format = PIPE_FORMAT_R8_UNORM; /* want TYPELESS or similar */
+ buffer.bind = bind;
+ buffer.usage = usage;
+ buffer.flags = 0;
+ buffer.width0 = size;
+ buffer.height0 = 1;
+ buffer.depth0 = 1;
+ buffer.array_size = 1;
+ return screen->resource_create(screen, &buffer);
+}
+
+
+static INLINE struct pipe_resource *
+pipe_user_buffer_create( struct pipe_screen *screen, void *ptr, unsigned size,
+ unsigned usage )
+{
+ return screen->user_buffer_create(screen, ptr, size, usage);
+}
+
+static INLINE void *
+pipe_buffer_map_range(struct pipe_context *pipe,
+ struct pipe_resource *buffer,
+ unsigned offset,
+ unsigned length,
+ unsigned usage,
+ struct pipe_transfer **transfer)
+{
+ struct pipe_box box;
+ void *map;
+
+ assert(offset < buffer->width0);
+ assert(offset + length <= buffer->width0);
+ assert(length);
+
+ u_box_1d(offset, length, &box);
+
+ *transfer = pipe->get_transfer( pipe,
+ buffer,
+ 0,
+ usage,
+ &box);
+
+ if (*transfer == NULL)
+ return NULL;
+
+ map = pipe->transfer_map( pipe, *transfer );
+ if (map == NULL) {
+ pipe->transfer_destroy( pipe, *transfer );
+ *transfer = NULL;
+ return NULL;
+ }
+
+ /* Match old screen->buffer_map_range() behaviour, return pointer
+ * to where the beginning of the buffer would be:
+ */
+ return (void *)((char *)map - offset);
+}
+
+
+static INLINE void *
+pipe_buffer_map(struct pipe_context *pipe,
+ struct pipe_resource *buffer,
+ unsigned usage,
+ struct pipe_transfer **transfer)
+{
+ return pipe_buffer_map_range(pipe, buffer, 0, buffer->width0, usage, transfer);
+}
+
+
+static INLINE void
+pipe_buffer_unmap(struct pipe_context *pipe,
+ struct pipe_transfer *transfer)
+{
+ if (transfer) {
+ pipe->transfer_unmap(pipe, transfer);
+ pipe->transfer_destroy(pipe, transfer);
+ }
+}
+
+static INLINE void
+pipe_buffer_flush_mapped_range(struct pipe_context *pipe,
+ struct pipe_transfer *transfer,
+ unsigned offset,
+ unsigned length)
+{
+ struct pipe_box box;
+ int transfer_offset;
+
+ assert(length);
+ assert(transfer->box.x <= offset);
+ assert(offset + length <= transfer->box.x + transfer->box.width);
+
+ /* Match old screen->buffer_flush_mapped_range() behaviour, where
+ * offset parameter is relative to the start of the buffer, not the
+ * mapped range.
+ */
+ transfer_offset = offset - transfer->box.x;
+
+ u_box_1d(transfer_offset, length, &box);
+
+ pipe->transfer_flush_region(pipe, transfer, &box);
+}
+
+static INLINE void
+pipe_buffer_write(struct pipe_context *pipe,
+ struct pipe_resource *buf,
+ unsigned offset,
+ unsigned size,
+ const void *data)
+{
+ struct pipe_box box;
+ unsigned usage = PIPE_TRANSFER_WRITE;
+
+ if (offset == 0 && size == buf->width0) {
+ usage |= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE;
+ } else {
+ usage |= PIPE_TRANSFER_DISCARD_RANGE;
+ }
+
+ u_box_1d(offset, size, &box);
+
+ pipe->transfer_inline_write( pipe,
+ buf,
+ 0,
+ usage,
+ &box,
+ data,
+ size,
+ 0);
+}
+
+/**
+ * Special case for writing non-overlapping ranges.
+ *
+ * We can avoid GPU/CPU synchronization when writing range that has never
+ * been written before.
+ */
+static INLINE void
+pipe_buffer_write_nooverlap(struct pipe_context *pipe,
+ struct pipe_resource *buf,
+ unsigned offset, unsigned size,
+ const void *data)
+{
+ struct pipe_box box;
+
+ u_box_1d(offset, size, &box);
+
+ pipe->transfer_inline_write(pipe,
+ buf,
+ 0,
+ (PIPE_TRANSFER_WRITE |
+ PIPE_TRANSFER_NOOVERWRITE),
+ &box,
+ data,
+ 0, 0);
+}
+
+static INLINE void
+pipe_buffer_read(struct pipe_context *pipe,
+ struct pipe_resource *buf,
+ unsigned offset,
+ unsigned size,
+ void *data)
+{
+ struct pipe_transfer *src_transfer;
+ ubyte *map;
+
+ map = (ubyte *) pipe_buffer_map_range(pipe,
+ buf,
+ offset, size,
+ PIPE_TRANSFER_READ,
+ &src_transfer);
+
+ if (map)
+ memcpy(data, map + offset, size);
+
+ pipe_buffer_unmap(pipe, src_transfer);
+}
+
+static INLINE struct pipe_transfer *
+pipe_get_transfer( struct pipe_context *context,
+ struct pipe_resource *resource,
+ unsigned level, unsigned layer,
+ enum pipe_transfer_usage usage,
+ unsigned x, unsigned y,
+ unsigned w, unsigned h)
+{
+ struct pipe_box box;
+ u_box_2d_zslice( x, y, layer, w, h, &box );
+ return context->get_transfer( context,
+ resource,
+ level,
+ usage,
+ &box );
+}
+
+static INLINE void *
+pipe_transfer_map( struct pipe_context *context,
+ struct pipe_transfer *transfer )
+{
+ return context->transfer_map( context, transfer );
+}
+
+static INLINE void
+pipe_transfer_unmap( struct pipe_context *context,
+ struct pipe_transfer *transfer )
+{
+ context->transfer_unmap( context, transfer );
+}
+
+
+static INLINE void
+pipe_transfer_destroy( struct pipe_context *context,
+ struct pipe_transfer *transfer )
+{
+ context->transfer_destroy(context, transfer);
+}
+
+
+static INLINE boolean util_get_offset(
+ const struct pipe_rasterizer_state *templ,
+ unsigned fill_mode)
+{
+ switch(fill_mode) {
+ case PIPE_POLYGON_MODE_POINT:
+ return templ->offset_point;
+ case PIPE_POLYGON_MODE_LINE:
+ return templ->offset_line;
+ case PIPE_POLYGON_MODE_FILL:
+ return templ->offset_tri;
+ default:
+ assert(0);
+ return FALSE;
+ }
+}
+
+/**
+ * This function is used to copy an array of pipe_vertex_buffer structures,
+ * while properly referencing the pipe_vertex_buffer::buffer member.
+ *
+ * \sa util_copy_framebuffer_state
+ */
+static INLINE void util_copy_vertex_buffers(struct pipe_vertex_buffer *dst,
+ unsigned *dst_count,
+ const struct pipe_vertex_buffer *src,
+ unsigned src_count)
+{
+ unsigned i;
+
+ /* Reference the buffers of 'src' in 'dst'. */
+ for (i = 0; i < src_count; i++) {
+ pipe_resource_reference(&dst[i].buffer, src[i].buffer);
+ }
+ /* Unreference the rest of the buffers in 'dst'. */
+ for (; i < *dst_count; i++) {
+ pipe_resource_reference(&dst[i].buffer, NULL);
+ }
+
+ /* Update the size of 'dst' and copy over the other members
+ * of pipe_vertex_buffer. */
+ *dst_count = src_count;
+ memcpy(dst, src, src_count * sizeof(struct pipe_vertex_buffer));
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* U_INLINES_H */
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