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

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 Artur Wyszynski <harakash@gmail.com>
   4  * Copyright 2013-2014 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 #include <stdio.h>
  29
  30 #include "pipe/p_compiler.h"
  31 #include "pipe/p_defines.h"
  32 #include "pipe/p_format.h"
  33 #include "util/u_inlines.h"
  34 #include "util/u_format.h"
  35 #include "util/u_math.h"
  36 #include "util/u_memory.h"
  37 #include "state_tracker/st_api.h"
  38 #include "state_tracker/sw_winsys.h"
  39
  40 #include "bitmap_wrapper.h"
  41 #include "hgl_sw_winsys.h"
  42
  43
  44 #ifdef DEBUG
  45 #   define TRACE(x...) printf("hgl:winsys: " x)
  46 #   define CALLED() TRACE("CALLED: %s\n", __PRETTY_FUNCTION__)
  47 #else
  48 #   define TRACE(x...)
  49 #   define CALLED()
  50 #endif
  51 #define ERROR(x...) printf("hgl:winsys: " x)
  52
  53
  54 struct haiku_displaytarget
  55 {
  56         enum pipe_format format;
  57         color_space colorSpace;
  58
  59         unsigned width;
  60         unsigned height;
  61         unsigned stride;
  62
  63         unsigned size;
  64
  65         void* data;
  66 };
  67
  68
  69 // Cast
  70 static inline struct haiku_displaytarget*
  71 hgl_sw_displaytarget(struct sw_displaytarget* target)
  72 {
  73         return (struct haiku_displaytarget *)target;
  74 }
  75
  76
  77 static void
  78 hgl_winsys_destroy(struct sw_winsys* winsys)
  79 {
  80         FREE(winsys);
  81 }
  82
  83
  84 static boolean
  85 hgl_winsys_is_displaytarget_format_supported(struct sw_winsys* winsys,
  86         unsigned textureUsage, enum pipe_format format)
  87 {
  88         // TODO STUB
  89         return TRUE;
  90 }
  91
  92 static color_space
  93 hgl_winsys_convert_cs(enum pipe_format format)
  94 {
  95         // TODO: B_RGB24, B_RGB16, B_RGB15?
  96         switch(format) {
  97                 case PIPE_FORMAT_B5G6R5_UNORM:
  98                         return B_CMAP8;
  99                 case PIPE_FORMAT_A8B8G8R8_UNORM:
 100                 case PIPE_FORMAT_X8B8G8R8_UNORM:
 101                 default:
 102                         return B_RGB32;
 103         }
 104 }
 105
 106 static struct sw_displaytarget*
 107 hgl_winsys_displaytarget_create(struct sw_winsys* winsys,
 108         unsigned textureUsage, enum pipe_format format, unsigned width,
 109         unsigned height, unsigned alignment, unsigned* stride)
 110 {
 111         struct haiku_displaytarget* haikuDisplayTarget
 112                 = CALLOC_STRUCT(haiku_displaytarget);
 113         assert(haikuDisplayTarget);
 114
 115         TRACE("%s: %d x %d\n", __func__, width, height);
 116
 117         haikuDisplayTarget->colorSpace = hgl_winsys_convert_cs(format);
 118         haikuDisplayTarget->format = format;
 119         haikuDisplayTarget->width = width;
 120         haikuDisplayTarget->height = height;
 121
 122         size_t formatStride = util_format_get_stride(format, width);
 123         unsigned blockSize = util_format_get_nblocksy(format, height);
 124
 125         haikuDisplayTarget->stride = align(formatStride, alignment);
 126         haikuDisplayTarget->size = haikuDisplayTarget->stride * blockSize;
 127
 128         haikuDisplayTarget->data
 129                 = align_malloc(haikuDisplayTarget->size, alignment);
 130
 131         assert(haikuDisplayTarget->data);
 132
 133         *stride = haikuDisplayTarget->stride;
 134
 135         // Cast to ghost sw_displaytarget type
 136         return (struct sw_displaytarget*)haikuDisplayTarget;
 137 }
 138
 139
 140 static void
 141 hgl_winsys_displaytarget_destroy(struct sw_winsys* winsys,
 142         struct sw_displaytarget* displayTarget)
 143 {
 144         struct haiku_displaytarget* haikuDisplayTarget
 145                 = hgl_sw_displaytarget(displayTarget);
 146
 147         if (!haikuDisplayTarget)
 148                 return;
 149
 150         if (haikuDisplayTarget->data != NULL)
 151                 align_free(haikuDisplayTarget->data);
 152
 153         FREE(haikuDisplayTarget);
 154 }
 155
 156
 157 static struct sw_displaytarget*
 158 hgl_winsys_displaytarget_from_handle(struct sw_winsys* winsys,
 159         const struct pipe_resource* templat, struct winsys_handle* whandle,
 160         unsigned* stride)
 161 {
 162         return NULL;
 163 }
 164
 165
 166 static boolean
 167 hgl_winsys_displaytarget_get_handle(struct sw_winsys* winsys,
 168         struct sw_displaytarget* displayTarget, struct winsys_handle* whandle)
 169 {
 170         return FALSE;
 171 }
 172
 173
 174 static void*
 175 hgl_winsys_displaytarget_map(struct sw_winsys* winsys,
 176         struct sw_displaytarget* displayTarget, unsigned flags)
 177 {
 178         struct haiku_displaytarget* haikuDisplayTarget
 179                 = hgl_sw_displaytarget(displayTarget);
 180
 181         return haikuDisplayTarget->data;
 182 }
 183
 184
 185 static void
 186 hgl_winsys_displaytarget_unmap(struct sw_winsys* winsys,
 187         struct sw_displaytarget* disptarget)
 188 {
 189         return;
 190 }
 191
 192
 193 static void
 194 hgl_winsys_displaytarget_display(struct sw_winsys* winsys,
 195         struct sw_displaytarget* displayTarget, void* contextPrivate,
 196         struct pipe_box *box)
 197 {
 198         assert(contextPrivate);
 199
 200         Bitmap* bitmap = (Bitmap*)contextPrivate;
 201
 202         struct haiku_displaytarget* haikuDisplayTarget
 203                 = hgl_sw_displaytarget(displayTarget);
 204
 205         import_bitmap_bits(bitmap, haikuDisplayTarget->data,
 206                 haikuDisplayTarget->size, haikuDisplayTarget->stride,
 207                 haikuDisplayTarget->colorSpace);
 208
 209         // Dump the rendered bitmap to disk for debugging
 210         //dump_bitmap(bitmap);
 211
 212         return;
 213 }
 214
 215
 216 struct sw_winsys*
 217 hgl_create_sw_winsys()
 218 {
 219         struct sw_winsys* winsys = CALLOC_STRUCT(sw_winsys);
 220
 221         if (!winsys)
 222                 return NULL;
 223
 224         // Attach winsys hooks for Haiku
 225         winsys->destroy = hgl_winsys_destroy;
 226         winsys->is_displaytarget_format_supported
 227                 = hgl_winsys_is_displaytarget_format_supported;
 228         winsys->displaytarget_create = hgl_winsys_displaytarget_create;
 229         winsys->displaytarget_from_handle = hgl_winsys_displaytarget_from_handle;
 230         winsys->displaytarget_get_handle = hgl_winsys_displaytarget_get_handle;
 231         winsys->displaytarget_map = hgl_winsys_displaytarget_map;
 232         winsys->displaytarget_unmap = hgl_winsys_displaytarget_unmap;
 233         winsys->displaytarget_display = hgl_winsys_displaytarget_display;
 234         winsys->displaytarget_destroy = hgl_winsys_displaytarget_destroy;
 235
 236         return winsys;
 237 }