src/gallium/winsys/sw/hgl/hgl_sw_winsys.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 Artur Wyszynski <harakash@gmail.com>
   4  * Copyright 2013 Alexander von Gluck IV <kallisti5@unixzen.com>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  18  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  19  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  20  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  26  **************************************************************************/
  27
  28
  29 #include "pipe/p_compiler.h"
  30 #include "pipe/p_defines.h"
  31 #include "pipe/p_format.h"
  32 #include "util/u_inlines.h"
  33 #include "util/u_format.h"
  34 #include "util/u_math.h"
  35 #include "util/u_memory.h"
  36 #include "state_tracker/st_api.h"
  37 #include "state_tracker/sw_winsys.h"
  38
  39 #include "bitmap_wrapper.h"
  40 #include "hgl_sw_winsys.h"
  41
  42
  43 struct haiku_displaytarget
  44 {
  45         enum pipe_format format;
  46         color_space colorSpace;
  47
  48         unsigned width;
  49         unsigned height;
  50         unsigned stride;
  51
  52         unsigned size;
  53
  54         void* data;
  55 };
  56
  57
  58 // Cast
  59 static INLINE struct haiku_displaytarget*
  60 hgl_sw_displaytarget(struct sw_displaytarget* target)
  61 {
  62         return (struct haiku_displaytarget *)target;
  63 }
  64
  65
  66 static void
  67 hgl_winsys_destroy(struct sw_winsys* winsys)
  68 {
  69         FREE(winsys);
  70 }
  71
  72
  73 static boolean
  74 hgl_winsys_is_displaytarget_format_supported(struct sw_winsys* winsys,
  75         unsigned textureUsage, enum pipe_format format)
  76 {
  77         // TODO STUB
  78         return true;
  79 }
  80
  81 static color_space
  82 hgl_winsys_convert_cs(enum pipe_format format)
  83 {
  84         // TODO: B_RGB24, B_RGB16, B_RGB15?
  85         switch(format) {
  86                 case PIPE_FORMAT_B5G6R5_UNORM:
  87                         return B_CMAP8;
  88                 case PIPE_FORMAT_A8R8G8B8_UNORM:
  89                 case PIPE_FORMAT_X8R8G8B8_UNORM:
  90                 default:
  91                         return B_RGB32;
  92         }
  93 }
  94
  95 static struct sw_displaytarget*
  96 hgl_winsys_displaytarget_create(struct sw_winsys* winsys,
  97         unsigned textureUsage, enum pipe_format format, unsigned width,
  98         unsigned height, unsigned alignment, unsigned* stride)
  99 {
 100         struct haiku_displaytarget* haikuDisplayTarget
 101                 = CALLOC_STRUCT(haiku_displaytarget);
 102         assert(haikuDisplayTarget);
 103
 104         haikuDisplayTarget->colorSpace = hgl_winsys_convert_cs(format);
 105         haikuDisplayTarget->format = format;
 106         haikuDisplayTarget->width = width;
 107         haikuDisplayTarget->height = height;
 108
 109         size_t formatStride = util_format_get_stride(format, width);
 110         unsigned blockSize = util_format_get_nblocksy(format, height);
 111
 112         haikuDisplayTarget->stride = align(formatStride, alignment);
 113         haikuDisplayTarget->size = haikuDisplayTarget->stride * blockSize;
 114
 115         haikuDisplayTarget->data
 116                 = align_malloc(haikuDisplayTarget->size, alignment);
 117
 118         assert(haikuDisplayTarget->data);
 119
 120         *stride = haikuDisplayTarget->stride;
 121
 122         // Cast to ghost sw_displaytarget type
 123         return (struct sw_displaytarget*)haikuDisplayTarget;
 124 }
 125
 126
 127 static void
 128 hgl_winsys_displaytarget_destroy(struct sw_winsys* winsys,
 129         struct sw_displaytarget* displayTarget)
 130 {
 131         struct haiku_displaytarget* haikuDisplayTarget
 132                 = hgl_sw_displaytarget(displayTarget);
 133
 134         if (!haikuDisplayTarget)
 135                 return;
 136
 137         if (haikuDisplayTarget->data != NULL)
 138                 align_free(haikuDisplayTarget->data);
 139
 140         FREE(haikuDisplayTarget);
 141 }
 142
 143
 144 static struct sw_displaytarget*
 145 hgl_winsys_displaytarget_from_handle(struct sw_winsys* winsys,
 146         const struct pipe_resource* templat, struct winsys_handle* whandle,
 147         unsigned* stride)
 148 {
 149         return NULL;
 150 }
 151
 152
 153 static boolean
 154 hgl_winsys_displaytarget_get_handle(struct sw_winsys* winsys,
 155         struct sw_displaytarget* displayTarget, struct winsys_handle* whandle)
 156 {
 157         return FALSE;
 158 }
 159
 160
 161 static void*
 162 hgl_winsys_displaytarget_map(struct sw_winsys* winsys,
 163         struct sw_displaytarget* displayTarget, unsigned flags)
 164 {
 165         struct haiku_displaytarget* haikuDisplayTarget
 166                 = hgl_sw_displaytarget(displayTarget);
 167
 168         return haikuDisplayTarget->data;
 169 }
 170
 171
 172 static void
 173 hgl_winsys_displaytarget_unmap(struct sw_winsys* winsys,
 174         struct sw_displaytarget* disptarget)
 175 {
 176         return;
 177 }
 178
 179
 180 static void
 181 hgl_winsys_displaytarget_display(struct sw_winsys* winsys,
 182         struct sw_displaytarget* displayTarget, void* contextPrivate,
 183         struct pipe_box *box)
 184 {
 185         assert(contextPrivate);
 186
 187         Bitmap* bitmap = (Bitmap*)contextPrivate;
 188
 189         struct haiku_displaytarget* haikuDisplayTarget
 190                 = hgl_sw_displaytarget(displayTarget);
 191
 192         import_bitmap_bits(bitmap, haikuDisplayTarget->data,
 193                 haikuDisplayTarget->size, haikuDisplayTarget->stride,
 194                 haikuDisplayTarget->colorSpace);
 195
 196         return;
 197 }
 198
 199
 200 struct sw_winsys*
 201 hgl_create_sw_winsys()
 202 {
 203         struct sw_winsys* winsys = CALLOC_STRUCT(sw_winsys);
 204
 205         if (!winsys)
 206                 return NULL;
 207
 208         // Attach winsys hooks for Haiku
 209         winsys->destroy = hgl_winsys_destroy;
 210         winsys->is_displaytarget_format_supported
 211                 = hgl_winsys_is_displaytarget_format_supported;
 212         winsys->displaytarget_create = hgl_winsys_displaytarget_create;
 213         winsys->displaytarget_from_handle = hgl_winsys_displaytarget_from_handle;
 214         winsys->displaytarget_get_handle = hgl_winsys_displaytarget_get_handle;
 215         winsys->displaytarget_map = hgl_winsys_displaytarget_map;
 216         winsys->displaytarget_unmap = hgl_winsys_displaytarget_unmap;
 217         winsys->displaytarget_display = hgl_winsys_displaytarget_display;
 218         winsys->displaytarget_destroy = hgl_winsys_displaytarget_destroy;
 219
 220         return winsys;
 221 }