--- /dev/null
+/**************************************************************************
+ *
+ * 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 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
+ * LLVMpipe support.
+ *
+ * @author Jose Fonseca <jfonseca@vmware.com>
+ */
+
+
+#include <windows.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 "llvmpipe/lp_winsys.h"
+#include "llvmpipe/lp_texture.h"
+#include "shared/stw_winsys.h"
+
+
+struct gdi_llvmpipe_displaytarget
+{
+ enum pipe_format format;
+ struct pipe_format_block block;
+ unsigned width;
+ unsigned height;
+ unsigned stride;
+
+ unsigned size;
+
+ void *data;
+
+ BITMAPINFO bmi;
+};
+
+
+/** Cast wrapper */
+static INLINE struct gdi_llvmpipe_displaytarget *
+gdi_llvmpipe_displaytarget( struct llvmpipe_displaytarget *buf )
+{
+ return (struct gdi_llvmpipe_displaytarget *)buf;
+}
+
+
+static boolean
+gdi_llvmpipe_is_displaytarget_format_supported( struct llvmpipe_winsys *ws,
+ enum pipe_format format )
+{
+ switch(format) {
+ case PIPE_FORMAT_X8R8G8B8_UNORM:
+ case PIPE_FORMAT_A8R8G8B8_UNORM:
+ return TRUE;
+
+ /* TODO: Support other formats possible with BMPs, as described in
+ * http://msdn.microsoft.com/en-us/library/dd183376(VS.85).aspx */
+
+ default:
+ return FALSE;
+ }
+}
+
+
+static void *
+gdi_llvmpipe_displaytarget_map(struct llvmpipe_winsys *ws,
+ struct llvmpipe_displaytarget *dt,
+ unsigned flags )
+{
+ struct gdi_llvmpipe_displaytarget *gdt = gdi_llvmpipe_displaytarget(dt);
+
+ return gdt->data;
+}
+
+
+static void
+gdi_llvmpipe_displaytarget_unmap(struct llvmpipe_winsys *ws,
+ struct llvmpipe_displaytarget *dt )
+{
+
+}
+
+
+static void
+gdi_llvmpipe_displaytarget_destroy(struct llvmpipe_winsys *winsys,
+ struct llvmpipe_displaytarget *dt)
+{
+ struct gdi_llvmpipe_displaytarget *gdt = gdi_llvmpipe_displaytarget(dt);
+
+ align_free(gdt->data);
+ FREE(gdt);
+}
+
+
+/**
+ * Round n up to next multiple.
+ */
+static INLINE unsigned
+round_up(unsigned n, unsigned multiple)
+{
+ return (n + multiple - 1) & ~(multiple - 1);
+}
+
+
+static struct llvmpipe_displaytarget *
+gdi_llvmpipe_displaytarget_create(struct llvmpipe_winsys *winsys,
+ enum pipe_format format,
+ unsigned width, unsigned height,
+ unsigned alignment,
+ unsigned *stride)
+{
+ struct gdi_llvmpipe_displaytarget *gdt;
+ unsigned cpp;
+ unsigned bpp;
+
+ gdt = CALLOC_STRUCT(gdi_llvmpipe_displaytarget);
+ if(!gdt)
+ goto no_gdt;
+
+ gdt->format = format;
+ gdt->width = width;
+ gdt->height = height;
+
+ bpp = pf_get_bits(format);
+ cpp = pf_get_size(format);
+
+ gdt->stride = round_up(width * cpp, alignment);
+ gdt->size = gdt->stride * height;
+
+ gdt->data = align_malloc(gdt->size, alignment);
+ if(!gdt->data)
+ goto no_data;
+
+ gdt->bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+ gdt->bmi.bmiHeader.biWidth = gdt->stride / cpp;
+ gdt->bmi.bmiHeader.biHeight= -(long)height;
+ gdt->bmi.bmiHeader.biPlanes = 1;
+ gdt->bmi.bmiHeader.biBitCount = bpp;
+ gdt->bmi.bmiHeader.biCompression = BI_RGB;
+ gdt->bmi.bmiHeader.biSizeImage = 0;
+ gdt->bmi.bmiHeader.biXPelsPerMeter = 0;
+ gdt->bmi.bmiHeader.biYPelsPerMeter = 0;
+ gdt->bmi.bmiHeader.biClrUsed = 0;
+ gdt->bmi.bmiHeader.biClrImportant = 0;
+
+ *stride = gdt->stride;
+ return (struct llvmpipe_displaytarget *)gdt;
+
+no_data:
+ FREE(gdt);
+no_gdt:
+ return NULL;
+}
+
+
+static void
+gdi_llvmpipe_displaytarget_display(struct llvmpipe_winsys *winsys,
+ struct llvmpipe_displaytarget *dt,
+ void *context_private)
+{
+ assert(0);
+}
+
+
+static void
+gdi_llvmpipe_destroy(struct llvmpipe_winsys *winsys)
+{
+ FREE(winsys);
+}
+
+
+static struct pipe_screen *
+gdi_llvmpipe_screen_create(void)
+{
+ static struct llvmpipe_winsys *winsys;
+ struct pipe_screen *screen;
+
+ winsys = CALLOC_STRUCT(llvmpipe_winsys);
+ if(!winsys)
+ goto no_winsys;
+
+ winsys->destroy = gdi_llvmpipe_destroy;
+ winsys->is_displaytarget_format_supported = gdi_llvmpipe_is_displaytarget_format_supported;
+ winsys->displaytarget_create = gdi_llvmpipe_displaytarget_create;
+ winsys->displaytarget_map = gdi_llvmpipe_displaytarget_map;
+ winsys->displaytarget_unmap = gdi_llvmpipe_displaytarget_unmap;
+ winsys->displaytarget_display = gdi_llvmpipe_displaytarget_display;
+ winsys->displaytarget_destroy = gdi_llvmpipe_displaytarget_destroy;
+
+ screen = llvmpipe_create_screen(winsys);
+ if(!screen)
+ goto no_screen;
+
+ return screen;
+
+no_screen:
+ FREE(winsys);
+no_winsys:
+ return NULL;
+}
+
+
+static struct pipe_context *
+gdi_llvmpipe_context_create(struct pipe_screen *screen)
+{
+ return llvmpipe_create(screen);
+}
+
+
+static void
+gdi_llvmpipe_flush_frontbuffer(struct pipe_screen *screen,
+ struct pipe_surface *surface,
+ HDC hDC)
+{
+ struct llvmpipe_texture *texture;
+ struct gdi_llvmpipe_displaytarget *gdt;
+
+ texture = llvmpipe_texture(surface->texture);
+ gdt = gdi_llvmpipe_displaytarget(texture->dt);
+
+ StretchDIBits(hDC,
+ 0, 0, gdt->width, gdt->height,
+ 0, 0, gdt->width, gdt->height,
+ gdt->data, &gdt->bmi, 0, SRCCOPY);
+}
+
+
+static const struct stw_winsys stw_winsys = {
+ &gdi_llvmpipe_screen_create,
+ &gdi_llvmpipe_context_create,
+ &gdi_llvmpipe_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;
+}
projects / mesa.git / commitdiff