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/format/u_format.h"
  35 #include "util/u_math.h"
  36 #include "util/u_memory.h"
  37 #include "frontend/api.h"
  38 #include "frontend/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 bool
  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, const void *front_private,
 110         unsigned* stride)
 111 {
 112         struct haiku_displaytarget* haikuDisplayTarget
 113                 = CALLOC_STRUCT(haiku_displaytarget);
 114         assert(haikuDisplayTarget);
 115
 116         TRACE("%s: %d x %d\n", __func__, width, height);
 117
 118         haikuDisplayTarget->colorSpace = hgl_winsys_convert_cs(format);
 119         haikuDisplayTarget->format = format;
 120         haikuDisplayTarget->width = width;
 121         haikuDisplayTarget->height = height;
 122
 123         size_t formatStride = util_format_get_stride(format, width);
 124         unsigned blockSize = util_format_get_nblocksy(format, height);
 125
 126         haikuDisplayTarget->stride = align(formatStride, alignment);
 127         haikuDisplayTarget->size = haikuDisplayTarget->stride * blockSize;
 128
 129         haikuDisplayTarget->data
 130                 = align_malloc(haikuDisplayTarget->size, alignment);
 131
 132         assert(haikuDisplayTarget->data);
 133
 134         *stride = haikuDisplayTarget->stride;
 135
 136         // Cast to ghost sw_displaytarget type
 137         return (struct sw_displaytarget*)haikuDisplayTarget;
 138 }
 139
 140
 141 static void
 142 hgl_winsys_displaytarget_destroy(struct sw_winsys* winsys,
 143         struct sw_displaytarget* displayTarget)
 144 {
 145         struct haiku_displaytarget* haikuDisplayTarget
 146                 = hgl_sw_displaytarget(displayTarget);
 147
 148         if (!haikuDisplayTarget)
 149                 return;
 150
 151         if (haikuDisplayTarget->data != NULL)
 152                 align_free(haikuDisplayTarget->data);
 153
 154         FREE(haikuDisplayTarget);
 155 }
 156
 157
 158 static struct sw_displaytarget*
 159 hgl_winsys_displaytarget_from_handle(struct sw_winsys* winsys,
 160         const struct pipe_resource* templat, struct winsys_handle* whandle,
 161         unsigned* stride)
 162 {
 163         return NULL;
 164 }
 165
 166
 167 static bool
 168 hgl_winsys_displaytarget_get_handle(struct sw_winsys* winsys,
 169         struct sw_displaytarget* displayTarget, struct winsys_handle* whandle)
 170 {
 171         return false;
 172 }
 173
 174
 175 static void*
 176 hgl_winsys_displaytarget_map(struct sw_winsys* winsys,
 177         struct sw_displaytarget* displayTarget, unsigned flags)
 178 {
 179         struct haiku_displaytarget* haikuDisplayTarget
 180                 = hgl_sw_displaytarget(displayTarget);
 181
 182         return haikuDisplayTarget->data;
 183 }
 184
 185
 186 static void
 187 hgl_winsys_displaytarget_unmap(struct sw_winsys* winsys,
 188         struct sw_displaytarget* disptarget)
 189 {
 190         return;
 191 }
 192
 193
 194 static void
 195 hgl_winsys_displaytarget_display(struct sw_winsys* winsys,
 196         struct sw_displaytarget* displayTarget, void* contextPrivate,
 197         struct pipe_box *box)
 198 {
 199         assert(contextPrivate);
 200
 201         Bitmap* bitmap = (Bitmap*)contextPrivate;
 202
 203         struct haiku_displaytarget* haikuDisplayTarget
 204                 = hgl_sw_displaytarget(displayTarget);
 205
 206         import_bitmap_bits(bitmap, haikuDisplayTarget->data,
 207                 haikuDisplayTarget->size, haikuDisplayTarget->stride,
 208                 haikuDisplayTarget->colorSpace);
 209
 210         // Dump the rendered bitmap to disk for debugging
 211         //dump_bitmap(bitmap);
 212
 213         return;
 214 }
 215
 216
 217 struct sw_winsys*
 218 hgl_create_sw_winsys()
 219 {
 220         struct sw_winsys* winsys = CALLOC_STRUCT(sw_winsys);
 221
 222         if (!winsys)
 223                 return NULL;
 224
 225         // Attach winsys hooks for Haiku
 226         winsys->destroy = hgl_winsys_destroy;
 227         winsys->is_displaytarget_format_supported
 228                 = hgl_winsys_is_displaytarget_format_supported;
 229         winsys->displaytarget_create = hgl_winsys_displaytarget_create;
 230         winsys->displaytarget_from_handle = hgl_winsys_displaytarget_from_handle;
 231         winsys->displaytarget_get_handle = hgl_winsys_displaytarget_get_handle;
 232         winsys->displaytarget_map = hgl_winsys_displaytarget_map;
 233         winsys->displaytarget_unmap = hgl_winsys_displaytarget_unmap;
 234         winsys->displaytarget_display = hgl_winsys_displaytarget_display;
 235         winsys->displaytarget_destroy = hgl_winsys_displaytarget_destroy;
 236
 237         return winsys;
 238 }