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-rw-r--r--src/gallium/drivers/i965/Makefile1
-rw-r--r--src/gallium/drivers/i965/brw_screen.c2
-rw-r--r--src/gallium/drivers/i965/brw_screen.h12
-rw-r--r--src/gallium/drivers/i965/brw_screen_buffers.c142
-rw-r--r--src/gallium/drivers/i965/brw_winsys.h4
5 files changed, 158 insertions, 3 deletions
diff --git a/src/gallium/drivers/i965/Makefile b/src/gallium/drivers/i965/Makefile
index 94b52bf0ec..38b7a30944 100644
--- a/src/gallium/drivers/i965/Makefile
+++ b/src/gallium/drivers/i965/Makefile
@@ -58,6 +58,7 @@ C_SOURCES = \
brw_wm_state.c \
brw_wm_surface_state.c \
brw_screen.c \
+ brw_screen_buffers.c \
brw_screen_tex_layout.c \
brw_screen_texture.c \
brw_screen_surface.c \
diff --git a/src/gallium/drivers/i965/brw_screen.c b/src/gallium/drivers/i965/brw_screen.c
index a02e6acc39..7991f4ae52 100644
--- a/src/gallium/drivers/i965/brw_screen.c
+++ b/src/gallium/drivers/i965/brw_screen.c
@@ -347,7 +347,7 @@ brw_create_screen(struct brw_winsys_screen *sws, uint pci_id)
brw_screen_tex_init(bscreen);
brw_screen_tex_surface_init(bscreen);
- brw_screen_init_buffer_functions(bscreen);
+ brw_screen_buffer_init(bscreen);
return &bscreen->base;
}
diff --git a/src/gallium/drivers/i965/brw_screen.h b/src/gallium/drivers/i965/brw_screen.h
index 11b480b1ac..dda516ee68 100644
--- a/src/gallium/drivers/i965/brw_screen.h
+++ b/src/gallium/drivers/i965/brw_screen.h
@@ -60,9 +60,16 @@ struct brw_transfer
struct brw_buffer
{
struct pipe_buffer base;
+
+ /* One of either bo or user_buffer will be non-null, depending on
+ * whether this is a hardware or user buffer.
+ */
struct brw_winsys_buffer *bo;
+ void *user_buffer;
+
+ /* Mapped pointer??
+ */
void *ptr;
- boolean is_user_buffer;
};
#define BRW_TILING_NONE 0
@@ -151,7 +158,7 @@ brw_texture(struct pipe_texture *texture)
static INLINE boolean
brw_buffer_is_user_buffer( const struct pipe_buffer *buf )
{
- return ((const struct brw_buffer *)buf)->is_user_buffer;
+ return ((const struct brw_buffer *)buf)->user_buffer != NULL;
}
struct brw_winsys_buffer *
@@ -173,6 +180,7 @@ void brw_update_texture( struct brw_screen *brw_screen,
void brw_screen_tex_init( struct brw_screen *brw_screen );
void brw_screen_tex_surface_init( struct brw_screen *brw_screen );
+void brw_screen_buffer_init(struct brw_screen *brw_screen);
#endif /* BRW_SCREEN_H */
diff --git a/src/gallium/drivers/i965/brw_screen_buffers.c b/src/gallium/drivers/i965/brw_screen_buffers.c
new file mode 100644
index 0000000000..0bf885ce8c
--- /dev/null
+++ b/src/gallium/drivers/i965/brw_screen_buffers.c
@@ -0,0 +1,142 @@
+
+#include "util/u_memory.h"
+#include "util/u_math.h"
+
+#include "pipe/p_state.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_inlines.h"
+
+#include "brw_screen.h"
+#include "brw_winsys.h"
+
+
+
+static void *
+brw_buffer_map( struct pipe_screen *screen,
+ struct pipe_buffer *buffer,
+ unsigned usage )
+{
+ struct brw_screen *bscreen = brw_screen(screen);
+ struct brw_winsys_screen *sws = bscreen->sws;
+ struct brw_buffer *buf = brw_buffer( buffer );
+
+ if (buf->user_buffer)
+ return buf->user_buffer;
+
+ return sws->bo_map( buf->bo,
+ (usage & PIPE_BUFFER_USAGE_CPU_WRITE) ? TRUE : FALSE );
+}
+
+static void
+brw_buffer_unmap( struct pipe_screen *screen,
+ struct pipe_buffer *buffer )
+{
+ struct brw_screen *bscreen = brw_screen(screen);
+ struct brw_winsys_screen *sws = bscreen->sws;
+ struct brw_buffer *buf = brw_buffer( buffer );
+
+ if (buf->bo)
+ sws->bo_unmap(buf->bo);
+}
+
+static void
+brw_buffer_destroy( struct pipe_buffer *buffer )
+{
+ struct brw_screen *bscreen = brw_screen( buffer->screen );
+ struct brw_winsys_screen *sws = bscreen->sws;
+ struct brw_buffer *buf = brw_buffer( buffer );
+
+ assert(!p_atomic_read(&buffer->reference.count));
+
+ if (buf->bo)
+ sws->bo_unreference(buf->bo);
+
+ FREE(buf);
+}
+
+
+static struct pipe_buffer *
+brw_buffer_create(struct pipe_screen *screen,
+ unsigned alignment,
+ unsigned usage,
+ unsigned size)
+{
+ struct brw_screen *bscreen = brw_screen(screen);
+ struct brw_winsys_screen *sws = bscreen->sws;
+ struct brw_buffer *buf;
+ unsigned usage_type;
+
+ buf = CALLOC_STRUCT(brw_buffer);
+ if (!buf)
+ return NULL;
+
+ pipe_reference_init(&buf->base.reference, 1);
+ buf->base.screen = screen;
+ buf->base.alignment = alignment;
+ buf->base.usage = usage;
+ buf->base.size = size;
+
+ switch (usage & (PIPE_BUFFER_USAGE_VERTEX |
+ PIPE_BUFFER_USAGE_INDEX |
+ PIPE_BUFFER_USAGE_PIXEL |
+ PIPE_BUFFER_USAGE_CONSTANT))
+ {
+ case PIPE_BUFFER_USAGE_VERTEX:
+ case PIPE_BUFFER_USAGE_INDEX:
+ case (PIPE_BUFFER_USAGE_VERTEX|PIPE_BUFFER_USAGE_INDEX):
+ usage_type = BRW_BUFFER_TYPE_VERTEX;
+ break;
+
+ case PIPE_BUFFER_USAGE_PIXEL:
+ usage_type = BRW_BUFFER_TYPE_PIXEL;
+ break;
+
+ case PIPE_BUFFER_USAGE_CONSTANT:
+ usage_type = BRW_BUFFER_TYPE_SHADER_CONSTANTS;
+ break;
+
+ default:
+ usage_type = BRW_BUFFER_TYPE_GENERIC;
+ break;
+ }
+
+ buf->bo = sws->bo_alloc( sws,
+ usage_type,
+ size,
+ alignment );
+
+ return &buf->base;
+}
+
+
+static struct pipe_buffer *
+brw_user_buffer_create(struct pipe_screen *screen,
+ void *ptr,
+ unsigned bytes)
+{
+ struct brw_buffer *buf;
+
+ buf = CALLOC_STRUCT(brw_buffer);
+ if (!buf)
+ return NULL;
+
+ buf->user_buffer = ptr;
+
+ pipe_reference_init(&buf->base.reference, 1);
+ buf->base.screen = screen;
+ buf->base.alignment = 1;
+ buf->base.usage = 0;
+ buf->base.size = bytes;
+
+ return &buf->base;
+}
+
+
+void brw_screen_buffer_init(struct brw_screen *brw_screen)
+{
+ brw_screen->base.buffer_create = brw_buffer_create;
+ brw_screen->base.user_buffer_create = brw_user_buffer_create;
+ brw_screen->base.buffer_map = brw_buffer_map;
+ brw_screen->base.buffer_unmap = brw_buffer_unmap;
+ brw_screen->base.buffer_destroy = brw_buffer_destroy;
+}
diff --git a/src/gallium/drivers/i965/brw_winsys.h b/src/gallium/drivers/i965/brw_winsys.h
index 9338923da3..b2ba3e86f9 100644
--- a/src/gallium/drivers/i965/brw_winsys.h
+++ b/src/gallium/drivers/i965/brw_winsys.h
@@ -51,6 +51,8 @@ enum brw_buffer_usage {
BRW_USAGE_QUERY_RESULT, /* INSTRUCTION, INSTRUCTION */
BRW_USAGE_RENDER_TARGET, /* RENDER, 0 */
BRW_USAGE_DEPTH_BUFFER, /* RENDER, RENDER */
+ BRW_USAGE_BLIT_SOURCE, /* RENDER, 0 */
+ BRW_USAGE_BLIT_DEST, /* RENDER, RENDER */
BRW_USAGE_SAMPLER, /* SAMPLER, 0 */
BRW_USAGE_VERTEX, /* VERTEX, 0 */
BRW_USAGE_SCRATCH, /* 0, 0 */
@@ -71,6 +73,8 @@ enum brw_buffer_type
BRW_BUFFER_TYPE_SHADER_SCRATCH,
BRW_BUFFER_TYPE_BATCH,
BRW_BUFFER_TYPE_STATE_CACHE,
+ BRW_BUFFER_TYPE_PIXEL, /* image uploads, pbo's, etc */
+ BRW_BUFFER_TYPE_GENERIC, /* unknown */
BRW_BUFFER_TYPE_MAX /* Count of possible values */
};
generated by cgit v1.2.3 (git 2.51.0) at 2025-10-31 08:21:20 +0000