src/mesa/drivers/dri/nouveau/nouveau_screen.c

   1 /*
   2  * Copyright (C) 2009 Francisco Jerez.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining
   6  * a copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sublicense, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial
  15  * portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  */
  26
  27 #include "nouveau_driver.h"
  28 #include "nouveau_context.h"
  29 #include "nouveau_fbo.h"
  30 #include "nouveau_texture.h"
  31 #include "nv04_driver.h"
  32 #include "nv10_driver.h"
  33 #include "nv20_driver.h"
  34
  35 #include "main/framebuffer.h"
  36 #include "main/fbobject.h"
  37 #include "main/renderbuffer.h"
  38 #include "swrast/s_renderbuffer.h"
  39
  40 static const __DRIextension *nouveau_screen_extensions[];
  41
  42 static void
  43 nouveau_destroy_screen(__DRIscreen *dri_screen);
  44
  45 static const __DRIconfig **
  46 nouveau_get_configs(void)
  47 {
  48         __DRIconfig **configs = NULL;
  49         int i;
  50
  51         const uint8_t depth_bits[]   = { 0, 16, 24, 24 };
  52         const uint8_t stencil_bits[] = { 0,  0,  0,  8 };
  53         const uint8_t msaa_samples[] = { 0 };
  54
  55         const struct {
  56                 GLenum format;
  57                 GLenum type;
  58         } fb_formats[] = {
  59                 { GL_RGB , GL_UNSIGNED_SHORT_5_6_5     },
  60                 { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV },
  61                 { GL_BGR , GL_UNSIGNED_INT_8_8_8_8_REV },
  62         };
  63
  64         const GLenum back_buffer_modes[] = {
  65                 GLX_NONE, GLX_SWAP_UNDEFINED_OML
  66         };
  67
  68         for (i = 0; i < Elements(fb_formats); i++) {
  69                 __DRIconfig **config;
  70
  71                 config = driCreateConfigs(fb_formats[i].format,
  72                                           fb_formats[i].type,
  73                                           depth_bits, stencil_bits,
  74                                           Elements(depth_bits),
  75                                           back_buffer_modes,
  76                                           Elements(back_buffer_modes),
  77                                           msaa_samples,
  78                                           Elements(msaa_samples),
  79                                           GL_TRUE);
  80                 assert(config);
  81
  82                 configs = driConcatConfigs(configs, config);
  83         }
  84
  85         return (const __DRIconfig **)configs;
  86 }
  87
  88 static const __DRIconfig **
  89 nouveau_init_screen2(__DRIscreen *dri_screen)
  90 {
  91         const __DRIconfig **configs;
  92         struct nouveau_screen *screen;
  93         int ret;
  94
  95         /* Allocate the screen. */
  96         screen = CALLOC_STRUCT(nouveau_screen);
  97         if (!screen)
  98                 return NULL;
  99
 100         dri_screen->driverPrivate = screen;
 101         dri_screen->extensions = nouveau_screen_extensions;
 102         screen->dri_screen = dri_screen;
 103
 104         /* Open the DRM device. */
 105         ret = nouveau_device_wrap(dri_screen->fd, 0, &screen->device);
 106         if (ret) {
 107                 nouveau_error("Error opening the DRM device.\n");
 108                 goto fail;
 109         }
 110
 111         /* Choose the card specific function pointers. */
 112         switch (screen->device->chipset & 0xf0) {
 113         case 0x00:
 114                 screen->driver = &nv04_driver;
 115                 break;
 116         case 0x10:
 117                 screen->driver = &nv10_driver;
 118                 break;
 119         case 0x20:
 120                 screen->driver = &nv20_driver;
 121                 break;
 122         default:
 123                 assert(0);
 124         }
 125
 126         configs = nouveau_get_configs();
 127         if (!configs)
 128                 goto fail;
 129
 130         return configs;
 131 fail:
 132         nouveau_destroy_screen(dri_screen);
 133         return NULL;
 134
 135 }
 136
 137 static void
 138 nouveau_destroy_screen(__DRIscreen *dri_screen)
 139 {
 140         struct nouveau_screen *screen = dri_screen->driverPrivate;
 141
 142         if (!screen)
 143                 return;
 144
 145         nouveau_device_del(&screen->device);
 146
 147         FREE(screen);
 148         dri_screen->driverPrivate = NULL;
 149 }
 150
 151 static GLboolean
 152 nouveau_create_buffer(__DRIscreen *dri_screen,
 153                       __DRIdrawable *drawable,
 154                       const struct gl_config *visual,
 155                       GLboolean is_pixmap)
 156 {
 157         struct gl_renderbuffer *rb;
 158         struct gl_framebuffer *fb;
 159         GLenum color_format;
 160
 161         if (is_pixmap)
 162                 return GL_FALSE; /* not implemented */
 163
 164         if (visual->redBits == 5)
 165                 color_format = GL_RGB5;
 166         else if (visual->alphaBits == 0)
 167                 color_format = GL_RGB8;
 168         else
 169                 color_format = GL_RGBA8;
 170
 171         fb = nouveau_framebuffer_dri_new(visual);
 172         if (!fb)
 173                 return GL_FALSE;
 174
 175         /* Front buffer. */
 176         rb = nouveau_renderbuffer_dri_new(color_format, drawable);
 177         _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, rb);
 178
 179         /* Back buffer */
 180         if (visual->doubleBufferMode) {
 181                 rb = nouveau_renderbuffer_dri_new(color_format, drawable);
 182                 _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, rb);
 183         }
 184
 185         /* Depth/stencil buffer. */
 186         if (visual->depthBits == 24 && visual->stencilBits == 8) {
 187                 rb = nouveau_renderbuffer_dri_new(GL_DEPTH24_STENCIL8_EXT, drawable);
 188                 _mesa_add_renderbuffer(fb, BUFFER_DEPTH, rb);
 189                 _mesa_add_renderbuffer(fb, BUFFER_STENCIL, rb);
 190
 191         } else if (visual->depthBits == 24) {
 192                 rb = nouveau_renderbuffer_dri_new(GL_DEPTH_COMPONENT24, drawable);
 193                 _mesa_add_renderbuffer(fb, BUFFER_DEPTH, rb);
 194
 195         } else if (visual->depthBits == 16) {
 196                 rb = nouveau_renderbuffer_dri_new(GL_DEPTH_COMPONENT16, drawable);
 197                 _mesa_add_renderbuffer(fb, BUFFER_DEPTH, rb);
 198         }
 199
 200         /* Software renderbuffers. */
 201         _swrast_add_soft_renderbuffers(fb, GL_FALSE, GL_FALSE, GL_FALSE,
 202                                        visual->accumRedBits > 0,
 203                                        GL_FALSE, GL_FALSE);
 204
 205         drawable->driverPrivate = fb;
 206
 207         return GL_TRUE;
 208 }
 209
 210 static void
 211 nouveau_destroy_buffer(__DRIdrawable *drawable)
 212 {
 213         _mesa_reference_framebuffer(
 214                 (struct gl_framebuffer **)&drawable->driverPrivate, NULL);
 215 }
 216
 217 static void
 218 nouveau_drawable_flush(__DRIdrawable *draw)
 219 {
 220 }
 221
 222 static const struct __DRI2flushExtensionRec nouveau_flush_extension = {
 223     { __DRI2_FLUSH, __DRI2_FLUSH_VERSION },
 224     nouveau_drawable_flush,
 225     dri2InvalidateDrawable,
 226 };
 227
 228 static const struct __DRItexBufferExtensionRec nouveau_texbuffer_extension = {
 229     { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
 230     NULL,
 231     nouveau_set_texbuffer,
 232 };
 233
 234 static const __DRIextension *nouveau_screen_extensions[] = {
 235     &nouveau_flush_extension.base,
 236     &nouveau_texbuffer_extension.base,
 237     &dri2ConfigQueryExtension.base,
 238     NULL
 239 };
 240
 241 const struct __DriverAPIRec driDriverAPI = {
 242         .InitScreen      = nouveau_init_screen2,
 243         .DestroyScreen   = nouveau_destroy_screen,
 244         .CreateBuffer    = nouveau_create_buffer,
 245         .DestroyBuffer   = nouveau_destroy_buffer,
 246         .CreateContext   = nouveau_context_create,
 247         .DestroyContext  = nouveau_context_destroy,
 248         .MakeCurrent     = nouveau_context_make_current,
 249         .UnbindContext   = nouveau_context_unbind,
 250 };
 251
 252 /* This is the table of extensions that the loader will dlsym() for. */
 253 PUBLIC const __DRIextension *__driDriverExtensions[] = {
 254         &driCoreExtension.base,
 255         &driDRI2Extension.base,
 256         NULL
 257 };