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_format.h"
  31 #include "util/u_inlines.h"
  32 #include "util/u_format.h"
  33 #include "util/u_math.h"
  34 #include "util/u_memory.h"
  35
  36 #include "hgl_sw_winsys.h"
  37
  38
  39 // Cast
  40 static INLINE struct haiku_displaytarget*
  41 hgl_sw_displaytarget(struct sw_displaytarget* target)
  42 {
  43         return (struct haiku_displaytarget *)target;
  44 }
  45
  46
  47 static void
  48 hgl_winsys_destroy(struct sw_winsys* winsys)
  49 {
  50         FREE(winsys);
  51 }
  52
  53
  54 static boolean
  55 hgl_winsys_is_displaytarget_format_supported(struct sw_winsys* winsys,
  56         unsigned textureUsage, enum pipe_format format)
  57 {
  58         // TODO STUB
  59         return true;
  60 }
  61
  62 static color_space
  63 hgl_winsys_convert_cs(enum pipe_format format)
  64 {
  65         // TODO: B_RGB24, B_RGB16, B_RGB15?
  66         switch(format) {
  67                 case PIPE_FORMAT_B5G6R5_UNORM:
  68                         return B_CMAP8;
  69                 case PIPE_FORMAT_A8R8G8B8_UNORM:
  70                 case PIPE_FORMAT_X8R8G8B8_UNORM:
  71                 default:
  72                         return B_RGB32;
  73         }
  74 }
  75
  76 static struct sw_displaytarget*
  77 hgl_winsys_displaytarget_create(struct sw_winsys* winsys,
  78         unsigned textureUsage, enum pipe_format format, unsigned width,
  79         unsigned height, unsigned alignment, unsigned* stride)
  80 {
  81         struct haiku_displaytarget* haikuDisplayTarget
  82                 = CALLOC_STRUCT(haiku_displaytarget);
  83         assert(haikuDisplayTarget);
  84
  85         haikuDisplayTarget->colorSpace = hgl_winsys_convert_cs(format);
  86         haikuDisplayTarget->format = format;
  87         haikuDisplayTarget->width = width;
  88         haikuDisplayTarget->height = height;
  89
  90         size_t formatStride = util_format_get_stride(format, width);
  91         unsigned blockSize = util_format_get_nblocksy(format, height);
  92
  93         haikuDisplayTarget->stride = align(formatStride, alignment);
  94         haikuDisplayTarget->size = haikuDisplayTarget->stride * blockSize;
  95
  96         haikuDisplayTarget->data
  97                 = align_malloc(haikuDisplayTarget->size, alignment);
  98
  99         assert(haikuDisplayTarget->data);
 100
 101         *stride = haikuDisplayTarget->stride;
 102
 103         // Cast to ghost sw_displaytarget type
 104         return (struct sw_displaytarget*)haikuDisplayTarget;
 105 }
 106
 107
 108 static void
 109 hgl_winsys_displaytarget_destroy(struct sw_winsys* winsys,
 110         struct sw_displaytarget* displayTarget)
 111 {
 112         struct haiku_displaytarget* haikuDisplayTarget
 113                 = hgl_sw_displaytarget(displayTarget);
 114
 115         if (!haikuDisplayTarget)
 116                 return;
 117
 118         if (haikuDisplayTarget->data != NULL)
 119                 align_free(haikuDisplayTarget->data);
 120
 121         FREE(haikuDisplayTarget);
 122 }
 123
 124
 125 static struct sw_displaytarget*
 126 hgl_winsys_displaytarget_from_handle(struct sw_winsys* winsys,
 127         const struct pipe_resource* templat, struct winsys_handle* whandle,
 128         unsigned* stride)
 129 {
 130         return NULL;
 131 }
 132
 133
 134 static boolean
 135 hgl_winsys_displaytarget_get_handle(struct sw_winsys* winsys,
 136         struct sw_displaytarget* displayTarget, struct winsys_handle* whandle)
 137 {
 138         return FALSE;
 139 }
 140
 141
 142 static void*
 143 hgl_winsys_displaytarget_map(struct sw_winsys* winsys,
 144         struct sw_displaytarget* displayTarget, unsigned flags)
 145 {
 146         struct haiku_displaytarget* haikuDisplayTarget
 147                 = hgl_sw_displaytarget(displayTarget);
 148
 149         return haikuDisplayTarget->data;
 150 }
 151
 152
 153 static void
 154 hgl_winsys_displaytarget_unmap(struct sw_winsys* winsys,
 155         struct sw_displaytarget* disptarget)
 156 {
 157         return;
 158 }
 159
 160
 161 static void
 162 hgl_winsys_displaytarget_display(struct sw_winsys* winsys,
 163         struct sw_displaytarget* displayTarget, void* contextPrivate,
 164         struct pipe_box *box)
 165 {
 166         assert(contextPrivate);
 167
 168         Bitmap* bitmap = (Bitmap*)contextPrivate;
 169
 170         struct haiku_displaytarget* haikuDisplayTarget
 171                 = hgl_sw_displaytarget(displayTarget);
 172
 173         import_bitmap_bits(bitmap, haikuDisplayTarget->data,
 174                 haikuDisplayTarget->size, haikuDisplayTarget->stride,
 175                 haikuDisplayTarget->colorSpace);
 176
 177         return;
 178 }
 179
 180
 181 struct sw_winsys*
 182 hgl_create_sw_winsys()
 183 {
 184         struct sw_winsys* winsys = CALLOC_STRUCT(sw_winsys);
 185
 186         if (!winsys)
 187                 return NULL;
 188
 189         // Attach winsys hooks for Haiku
 190         winsys->destroy = hgl_winsys_destroy;
 191         winsys->is_displaytarget_format_supported
 192                 = hgl_winsys_is_displaytarget_format_supported;
 193         winsys->displaytarget_create = hgl_winsys_displaytarget_create;
 194         winsys->displaytarget_from_handle = hgl_winsys_displaytarget_from_handle;
 195         winsys->displaytarget_get_handle = hgl_winsys_displaytarget_get_handle;
 196         winsys->displaytarget_map = hgl_winsys_displaytarget_map;
 197         winsys->displaytarget_unmap = hgl_winsys_displaytarget_unmap;
 198         winsys->displaytarget_display = hgl_winsys_displaytarget_display;
 199         winsys->displaytarget_destroy = hgl_winsys_displaytarget_destroy;
 200
 201         return winsys;
 202 }