0,0 → 1,232 |
/************************************************************************** |
* |
* 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 |
* GDI software rasterizer support. |
* |
* @author Jose Fonseca <jfonseca@vmware.com> |
*/ |
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#include "pipe/p_format.h" |
#include "pipe/p_context.h" |
#include "util/u_inlines.h" |
#include "util/u_format.h" |
#include "util/u_math.h" |
#include "util/u_memory.h" |
#include "state_tracker/sw_winsys.h" |
#include <kos32sys.h> |
#include "kos_sw_winsys.h" |
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struct kos_sw_displaytarget |
{ |
enum pipe_format format; |
unsigned width; |
unsigned height; |
unsigned stride; |
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unsigned size; |
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void *data; |
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// BITMAPINFO bmi; |
}; |
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/** Cast wrapper */ |
static INLINE struct kos_sw_displaytarget * |
kos_sw_displaytarget( struct sw_displaytarget *buf ) |
{ |
return (struct kos_sw_displaytarget *)buf; |
} |
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static boolean |
kos_sw_is_displaytarget_format_supported( struct sw_winsys *ws, |
unsigned tex_usage, |
enum pipe_format format ) |
{ |
switch(format) { |
case PIPE_FORMAT_B8G8R8X8_UNORM: |
case PIPE_FORMAT_B8G8R8A8_UNORM: |
return TRUE; |
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/* TODO: Support other formats possible with BMPs, as described in |
* http://msdn.microsoft.com/en-us/library/dd183376(VS.85).aspx */ |
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default: |
return FALSE; |
} |
} |
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static void * |
kos_sw_displaytarget_map(struct sw_winsys *ws, |
struct sw_displaytarget *dt, |
unsigned flags ) |
{ |
struct kos_sw_displaytarget *gdt = kos_sw_displaytarget(dt); |
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return gdt->data; |
} |
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static void |
kos_sw_displaytarget_unmap(struct sw_winsys *ws, |
struct sw_displaytarget *dt ) |
{ |
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} |
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static void |
kos_sw_displaytarget_destroy(struct sw_winsys *winsys, |
struct sw_displaytarget *dt) |
{ |
struct kos_sw_displaytarget *gdt = kos_sw_displaytarget(dt); |
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user_free(gdt->data); |
FREE(gdt); |
} |
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static struct sw_displaytarget * |
kos_sw_displaytarget_create(struct sw_winsys *winsys, |
unsigned tex_usage, |
enum pipe_format format, |
unsigned width, unsigned height, |
unsigned alignment, |
unsigned *stride) |
{ |
struct kos_sw_displaytarget *gdt; |
unsigned cpp; |
unsigned bpp; |
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gdt = CALLOC_STRUCT(kos_sw_displaytarget); |
if(!gdt) |
goto no_gdt; |
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gdt->format = format; |
gdt->width = width; |
gdt->height = height; |
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bpp = util_format_get_blocksizebits(format); |
cpp = util_format_get_blocksize(format); |
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gdt->stride = align(width * cpp, alignment); |
gdt->size = gdt->stride * height; |
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gdt->data = user_alloc(gdt->size); |
if(!gdt->data) |
goto no_data; |
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*stride = gdt->stride; |
return (struct sw_displaytarget *)gdt; |
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no_data: |
FREE(gdt); |
no_gdt: |
return NULL; |
} |
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static struct sw_displaytarget * |
kos_sw_displaytarget_from_handle(struct sw_winsys *winsys, |
const struct pipe_resource *templet, |
struct winsys_handle *whandle, |
unsigned *stride) |
{ |
assert(0); |
return NULL; |
} |
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static boolean |
kos_sw_displaytarget_get_handle(struct sw_winsys *winsys, |
struct sw_displaytarget *dt, |
struct winsys_handle *whandle) |
{ |
assert(0); |
return FALSE; |
} |
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void |
kos_sw_display( struct sw_winsys *winsys, |
struct sw_displaytarget *dt) |
{ |
struct kos_sw_displaytarget *gdt = kos_sw_displaytarget(dt); |
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// StretchDIBits(hDC, |
// 0, 0, gdt->width, gdt->height, |
// 0, 0, gdt->width, gdt->height, |
// gdt->data, &gdt->bmi, 0, SRCCOPY); |
} |
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static void |
kos_sw_displaytarget_display(struct sw_winsys *winsys, |
struct sw_displaytarget *dt, |
void *context_private) |
{ |
/* nasty: |
*/ |
// HDC hDC = (HDC)context_private; |
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kos_sw_display(winsys, dt); |
} |
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static void |
kos_sw_destroy(struct sw_winsys *winsys) |
{ |
FREE(winsys); |
} |
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struct sw_winsys * |
kos_create_sw_winsys(void) |
{ |
static struct sw_winsys *winsys; |
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winsys = CALLOC_STRUCT(sw_winsys); |
if(!winsys) |
return NULL; |
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winsys->destroy = kos_sw_destroy; |
winsys->is_displaytarget_format_supported = kos_sw_is_displaytarget_format_supported; |
winsys->displaytarget_create = kos_sw_displaytarget_create; |
winsys->displaytarget_from_handle = kos_sw_displaytarget_from_handle; |
winsys->displaytarget_get_handle = kos_sw_displaytarget_get_handle; |
winsys->displaytarget_map = kos_sw_displaytarget_map; |
winsys->displaytarget_unmap = kos_sw_displaytarget_unmap; |
winsys->displaytarget_display = kos_sw_displaytarget_display; |
winsys->displaytarget_destroy = kos_sw_displaytarget_destroy; |
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return winsys; |
} |
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