| /************************************************************************** |
| * |
| * 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 "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_present(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_present, |
| NULL, /* get_adapter_luid */ |
| NULL, /* shared_surface_open */ |
| NULL, /* shared_surface_close */ |
| NULL /* compose */ |
| }; |
| |
| |
| 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; |
| } |