*
**************************************************************************/
-/**
- * @file
- * Softpipe support.
- *
- * @author Keith Whitwell
- * @author Brian Paul
- * @author Jose Fonseca
- */
-
-
-#include "pipe/internal/p_winsys_screen.h"/* port to just p_screen */
-#include "pipe/p_format.h"
-#include "pipe/p_context.h"
-#include "pipe/p_inlines.h"
-#include "util/u_math.h"
-#include "util/u_memory.h"
-#include "softpipe/sp_winsys.h"
+#include "util/u_debug.h"
+#include "softpipe/sp_public.h"
+#include "llvmpipe/lp_public.h"
+#include "state_tracker/sw_winsys.h"
+#include "sw/null/null_sw_winsys.h"
#include "st_winsys.h"
-struct st_softpipe_buffer
-{
- struct pipe_buffer base;
- boolean userBuffer; /** Is this a user-space buffer? */
- void *data;
- void *mapped;
-};
-
-
-/** Cast wrapper */
-static INLINE struct st_softpipe_buffer *
-st_softpipe_buffer( struct pipe_buffer *buf )
-{
- return (struct st_softpipe_buffer *)buf;
-}
-
-
-static void *
-st_softpipe_buffer_map(struct pipe_winsys *winsys,
- struct pipe_buffer *buf,
- unsigned flags)
+struct pipe_screen *
+st_software_screen_create(const char *driver)
{
- struct st_softpipe_buffer *st_softpipe_buf = st_softpipe_buffer(buf);
- st_softpipe_buf->mapped = st_softpipe_buf->data;
- return st_softpipe_buf->mapped;
-}
-
-
-static void
-st_softpipe_buffer_unmap(struct pipe_winsys *winsys,
- struct pipe_buffer *buf)
-{
- struct st_softpipe_buffer *st_softpipe_buf = st_softpipe_buffer(buf);
- st_softpipe_buf->mapped = NULL;
-}
+ struct sw_winsys *ws;
+ struct pipe_screen *screen = NULL;
+ if (!driver) {
+ const char *default_driver;
-static void
-st_softpipe_buffer_destroy(struct pipe_buffer *buf)
-{
- struct st_softpipe_buffer *oldBuf = st_softpipe_buffer(buf);
-
- if (oldBuf->data) {
- if (!oldBuf->userBuffer)
- align_free(oldBuf->data);
+#if defined(HAVE_LLVMPIPE)
+ default_driver = "llvmpipe";
+#elif defined(HAVE_SOFTPIPE)
+ default_driver = "softpipe";
+#else
+ default_driver = "";
+#endif
- oldBuf->data = NULL;
+ driver = debug_get_option("GALLIUM_DRIVER", default_driver);
}
- FREE(oldBuf);
-}
-
-
-static void
-st_softpipe_flush_frontbuffer(struct pipe_winsys *winsys,
- struct pipe_surface *surf,
- void *context_private)
-{
-}
-
-
-
-static const char *
-st_softpipe_get_name(struct pipe_winsys *winsys)
-{
- return "softpipe";
-}
-
-
-static struct pipe_buffer *
-st_softpipe_buffer_create(struct pipe_winsys *winsys,
- unsigned alignment,
- unsigned usage,
- unsigned size)
-{
- struct st_softpipe_buffer *buffer = CALLOC_STRUCT(st_softpipe_buffer);
-
- pipe_reference_init(&buffer->base.reference, 1);
- buffer->base.alignment = alignment;
- buffer->base.usage = usage;
- buffer->base.size = size;
-
- buffer->data = align_malloc(size, alignment);
-
- return &buffer->base;
-}
-
-
-/**
- * Create buffer which wraps user-space data.
- */
-static struct pipe_buffer *
-st_softpipe_user_buffer_create(struct pipe_winsys *winsys,
- void *ptr,
- unsigned bytes)
-{
- struct st_softpipe_buffer *buffer;
-
- buffer = CALLOC_STRUCT(st_softpipe_buffer);
- if(!buffer)
+ ws = null_sw_create();
+ if(!ws)
return NULL;
-
- pipe_reference_init(&buffer->base.reference, 1);
- buffer->base.size = bytes;
- buffer->userBuffer = TRUE;
- buffer->data = ptr;
-
- return &buffer->base;
-}
+#ifdef HAVE_LLVMPIPE
+ if (strcmp(driver, "llvmpipe") == 0) {
+ screen = llvmpipe_create_screen(ws);
+ }
+#endif
-static struct pipe_buffer *
-st_softpipe_surface_buffer_create(struct pipe_winsys *winsys,
- unsigned width, unsigned height,
- enum pipe_format format,
- unsigned usage,
- unsigned tex_usage,
- unsigned *stride)
-{
- const unsigned alignment = 64;
- unsigned nblocksy;
-
- nblocksy = pf_get_nblocksy(format, height);
- *stride = align(pf_get_stride(format, width), alignment);
-
- return winsys->buffer_create(winsys, alignment,
- usage,
- *stride * nblocksy);
-}
-
-
-static void
-st_softpipe_fence_reference(struct pipe_winsys *winsys,
- struct pipe_fence_handle **ptr,
- struct pipe_fence_handle *fence)
-{
-}
-
-
-static int
-st_softpipe_fence_signalled(struct pipe_winsys *winsys,
- struct pipe_fence_handle *fence,
- unsigned flag)
-{
- return 0;
-}
-
-
-static int
-st_softpipe_fence_finish(struct pipe_winsys *winsys,
- struct pipe_fence_handle *fence,
- unsigned flag)
-{
- return 0;
-}
-
-
-static void
-st_softpipe_destroy(struct pipe_winsys *winsys)
-{
- FREE(winsys);
-}
-
-
-static struct pipe_screen *
-st_softpipe_screen_create(void)
-{
- static struct pipe_winsys *winsys;
- struct pipe_screen *screen;
-
- winsys = CALLOC_STRUCT(pipe_winsys);
- if(!winsys)
- return NULL;
-
- winsys->destroy = st_softpipe_destroy;
-
- winsys->buffer_create = st_softpipe_buffer_create;
- winsys->user_buffer_create = st_softpipe_user_buffer_create;
- winsys->buffer_map = st_softpipe_buffer_map;
- winsys->buffer_unmap = st_softpipe_buffer_unmap;
- winsys->buffer_destroy = st_softpipe_buffer_destroy;
-
- winsys->surface_buffer_create = st_softpipe_surface_buffer_create;
-
- winsys->fence_reference = st_softpipe_fence_reference;
- winsys->fence_signalled = st_softpipe_fence_signalled;
- winsys->fence_finish = st_softpipe_fence_finish;
-
- winsys->flush_frontbuffer = st_softpipe_flush_frontbuffer;
- winsys->get_name = st_softpipe_get_name;
+#ifdef HAVE_SOFTPIPE
+ if (strcmp(driver, "softpipe") == 0) {
+ screen = softpipe_create_screen(ws);
+ }
+#endif
- screen = softpipe_create_screen(winsys);
- if(!screen)
- st_softpipe_destroy(winsys);
+ if (!screen) {
+ ws->destroy(ws);
+ }
return screen;
}
-
-
-static struct pipe_context *
-st_softpipe_context_create(struct pipe_screen *screen)
-{
- return softpipe_create(screen);
-}
-
-
-const struct st_winsys st_softpipe_winsys = {
- &st_softpipe_screen_create,
- &st_softpipe_context_create,
-};
projects / mesa.git / blobdiff