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Diffstat (limited to 'src/gallium/winsys/gdi/gdi_softpipe_winsys.c')
-rw-r--r--src/gallium/winsys/gdi/gdi_softpipe_winsys.c334
1 files changed, 334 insertions, 0 deletions
diff --git a/src/gallium/winsys/gdi/gdi_softpipe_winsys.c b/src/gallium/winsys/gdi/gdi_softpipe_winsys.c
new file mode 100644
index 0000000000..66120a6a98
--- /dev/null
+++ b/src/gallium/winsys/gdi/gdi_softpipe_winsys.c
@@ -0,0 +1,334 @@
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Bismarck, ND., USA
+ * 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 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
+ * THE COPYRIGHT HOLDERS, AUTHORS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ *
+ **************************************************************************/
+
+/**
+ * @file
+ * Softpipe support.
+ *
+ * @author Keith Whitwell
+ * @author Brian Paul
+ * @author Jose Fonseca
+ */
+
+
+#include <windows.h>
+
+#include "pipe/internal/p_winsys_screen.h"
+#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 "softpipe/sp_texture.h"
+#include "shared/stw_winsys.h"
+
+
+struct gdi_softpipe_buffer
+{
+ struct pipe_buffer base;
+ boolean userBuffer; /** Is this a user-space buffer? */
+ void *data;
+ void *mapped;
+};
+
+
+/** Cast wrapper */
+static INLINE struct gdi_softpipe_buffer *
+gdi_softpipe_buffer( struct pipe_buffer *buf )
+{
+ return (struct gdi_softpipe_buffer *)buf;
+}
+
+
+static void *
+gdi_softpipe_buffer_map(struct pipe_winsys *winsys,
+ struct pipe_buffer *buf,
+ unsigned flags)
+{
+ struct gdi_softpipe_buffer *gdi_softpipe_buf = gdi_softpipe_buffer(buf);
+ gdi_softpipe_buf->mapped = gdi_softpipe_buf->data;
+ return gdi_softpipe_buf->mapped;
+}
+
+
+static void
+gdi_softpipe_buffer_unmap(struct pipe_winsys *winsys,
+ struct pipe_buffer *buf)
+{
+ struct gdi_softpipe_buffer *gdi_softpipe_buf = gdi_softpipe_buffer(buf);
+ gdi_softpipe_buf->mapped = NULL;
+}
+
+
+static void
+gdi_softpipe_buffer_destroy(struct pipe_buffer *buf)
+{
+ struct gdi_softpipe_buffer *oldBuf = gdi_softpipe_buffer(buf);
+
+ if (oldBuf->data) {
+ if (!oldBuf->userBuffer)
+ align_free(oldBuf->data);
+
+ oldBuf->data = NULL;
+ }
+
+ FREE(oldBuf);
+}
+
+
+static const char *
+gdi_softpipe_get_name(struct pipe_winsys *winsys)
+{
+ return "softpipe";
+}
+
+
+static struct pipe_buffer *
+gdi_softpipe_buffer_create(struct pipe_winsys *winsys,
+ unsigned alignment,
+ unsigned usage,
+ unsigned size)
+{
+ struct gdi_softpipe_buffer *buffer = CALLOC_STRUCT(gdi_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 *
+gdi_softpipe_user_buffer_create(struct pipe_winsys *winsys,
+ void *ptr,
+ unsigned bytes)
+{
+ struct gdi_softpipe_buffer *buffer;
+
+ buffer = CALLOC_STRUCT(gdi_softpipe_buffer);
+ if(!buffer)
+ return NULL;
+
+ pipe_reference_init(&buffer->base.reference, 1);
+ buffer->base.size = bytes;
+ buffer->userBuffer = TRUE;
+ buffer->data = ptr;
+
+ return &buffer->base;
+}
+
+
+/**
+ * Round n up to next multiple.
+ */
+static INLINE unsigned
+round_up(unsigned n, unsigned multiple)
+{
+ return (n + multiple - 1) & ~(multiple - 1);
+}
+
+
+static struct pipe_buffer *
+gdi_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;
+ struct pipe_format_block block;
+ unsigned nblocksx, nblocksy;
+
+ pf_get_block(format, &block);
+ nblocksx = pf_get_nblocksx(&block, width);
+ nblocksy = pf_get_nblocksy(&block, height);
+ *stride = round_up(nblocksx * block.size, alignment);
+
+ return winsys->buffer_create(winsys, alignment,
+ usage,
+ *stride * nblocksy);
+}
+
+
+static void
+gdi_softpipe_dummy_flush_frontbuffer(struct pipe_winsys *winsys,
+ struct pipe_surface *surface,
+ void *context_private)
+{
+ assert(0);
+}
+
+
+static void
+gdi_softpipe_fence_reference(struct pipe_winsys *winsys,
+ struct pipe_fence_handle **ptr,
+ struct pipe_fence_handle *fence)
+{
+}
+
+
+static int
+gdi_softpipe_fence_signalled(struct pipe_winsys *winsys,
+ struct pipe_fence_handle *fence,
+ unsigned flag)
+{
+ return 0;
+}
+
+
+static int
+gdi_softpipe_fence_finish(struct pipe_winsys *winsys,
+ struct pipe_fence_handle *fence,
+ unsigned flag)
+{
+ return 0;
+}
+
+
+static void
+gdi_softpipe_destroy(struct pipe_winsys *winsys)
+{
+ FREE(winsys);
+}
+
+
+static struct pipe_screen *
+gdi_softpipe_screen_create(void)
+{
+ static struct pipe_winsys *winsys;
+ struct pipe_screen *screen;
+
+ winsys = CALLOC_STRUCT(pipe_winsys);
+ if(!winsys)
+ return NULL;
+
+ winsys->destroy = gdi_softpipe_destroy;
+
+ winsys->buffer_create = gdi_softpipe_buffer_create;
+ winsys->user_buffer_create = gdi_softpipe_user_buffer_create;
+ winsys->buffer_map = gdi_softpipe_buffer_map;
+ winsys->buffer_unmap = gdi_softpipe_buffer_unmap;
+ winsys->buffer_destroy = gdi_softpipe_buffer_destroy;
+
+ winsys->surface_buffer_create = gdi_softpipe_surface_buffer_create;
+
+ winsys->fence_reference = gdi_softpipe_fence_reference;
+ winsys->fence_signalled = gdi_softpipe_fence_signalled;
+ winsys->fence_finish = gdi_softpipe_fence_finish;
+
+ winsys->flush_frontbuffer = gdi_softpipe_dummy_flush_frontbuffer;
+ winsys->get_name = gdi_softpipe_get_name;
+
+ screen = softpipe_create_screen(winsys);
+ if(!screen)
+ gdi_softpipe_destroy(winsys);
+
+ return screen;
+}
+
+
+static struct pipe_context *
+gdi_softpipe_context_create(struct pipe_screen *screen)
+{
+ return softpipe_create(screen);
+}
+
+
+static void
+gdi_softpipe_flush_frontbuffer(struct pipe_screen *screen,
+ struct pipe_surface *surface,
+ HDC hDC)
+{
+ struct softpipe_texture *texture;
+ struct gdi_softpipe_buffer *buffer;
+ BITMAPINFO bmi;
+
+ texture = softpipe_texture(surface->texture);
+
+ buffer = gdi_softpipe_buffer(texture->buffer);
+
+ memset(&bmi, 0, sizeof(BITMAPINFO));
+ bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+ bmi.bmiHeader.biWidth = texture->stride[surface->level] / pf_get_size(surface->format);
+ bmi.bmiHeader.biHeight= -(long)surface->height;
+ bmi.bmiHeader.biPlanes = 1;
+ bmi.bmiHeader.biBitCount = pf_get_bits(surface->format);
+ bmi.bmiHeader.biCompression = BI_RGB;
+ bmi.bmiHeader.biSizeImage = 0;
+ bmi.bmiHeader.biXPelsPerMeter = 0;
+ bmi.bmiHeader.biYPelsPerMeter = 0;
+ bmi.bmiHeader.biClrUsed = 0;
+ bmi.bmiHeader.biClrImportant = 0;
+
+ StretchDIBits(hDC,
+ 0, 0, surface->width, surface->height,
+ 0, 0, surface->width, surface->height,
+ buffer->data, &bmi, 0, SRCCOPY);
+}
+
+
+static const struct stw_winsys stw_winsys = {
+ &gdi_softpipe_screen_create,
+ &gdi_softpipe_context_create,
+ &gdi_softpipe_flush_frontbuffer
+};
+
+
+BOOL WINAPI
+DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpReserved)
+{
+ switch (fdwReason) {
+ case DLL_PROCESS_ATTACH:
+ if (!stw_init(&stw_winsys)) {
+ return FALSE;
+ }
+ return stw_init_thread();
+
+ case DLL_THREAD_ATTACH:
+ return stw_init_thread();
+
+ case DLL_THREAD_DETACH:
+ stw_cleanup_thread();
+ break;
+
+ case DLL_PROCESS_DETACH:
+ stw_cleanup_thread();
+ stw_cleanup();
+ break;
+ }
+ return TRUE;
+}
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