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         static const gl_format formats[3] = {
  56                 MESA_FORMAT_RGB565,
  57                 MESA_FORMAT_ARGB8888,
  58                 MESA_FORMAT_XRGB8888,
  59         };
  60
  61         const GLenum back_buffer_modes[] = {
  62                 GLX_NONE, GLX_SWAP_UNDEFINED_OML
  63         };
  64
  65         for (i = 0; i < Elements(formats); i++) {
  66                 __DRIconfig **config;
  67
  68                 config = driCreateConfigs(formats[i],
  69                                           depth_bits, stencil_bits,
  70                                           Elements(depth_bits),
  71                                           back_buffer_modes,
  72                                           Elements(back_buffer_modes),
  73                                           msaa_samples,
  74                                           Elements(msaa_samples),
  75                                           GL_TRUE);
  76                 assert(config);
  77
  78                 configs = driConcatConfigs(configs, config);
  79         }
  80
  81         return (const __DRIconfig **)configs;
  82 }
  83
  84 static const __DRIconfig **
  85 nouveau_init_screen2(__DRIscreen *dri_screen)
  86 {
  87         const __DRIconfig **configs;
  88         struct nouveau_screen *screen;
  89         int ret;
  90
  91         /* Allocate the screen. */
  92         screen = CALLOC_STRUCT(nouveau_screen);
  93         if (!screen)
  94                 return NULL;
  95
  96         dri_screen->driverPrivate = screen;
  97         dri_screen->extensions = nouveau_screen_extensions;
  98         screen->dri_screen = dri_screen;
  99
 100         /* Open the DRM device. */
 101         ret = nouveau_device_wrap(dri_screen->fd, 0, &screen->device);
 102         if (ret) {
 103                 nouveau_error("Error opening the DRM device.\n");
 104                 goto fail;
 105         }
 106
 107         /* Choose the card specific function pointers. */
 108         switch (screen->device->chipset & 0xf0) {
 109         case 0x00:
 110                 screen->driver = &nv04_driver;
 111                 break;
 112         case 0x10:
 113                 screen->driver = &nv10_driver;
 114                 break;
 115         case 0x20:
 116                 screen->driver = &nv20_driver;
 117                 break;
 118         default:
 119                 assert(0);
 120         }
 121
 122         configs = nouveau_get_configs();
 123         if (!configs)
 124                 goto fail;
 125
 126         return configs;
 127 fail:
 128         nouveau_destroy_screen(dri_screen);
 129         return NULL;
 130
 131 }
 132
 133 static void
 134 nouveau_destroy_screen(__DRIscreen *dri_screen)
 135 {
 136         struct nouveau_screen *screen = dri_screen->driverPrivate;
 137
 138         if (!screen)
 139                 return;
 140
 141         nouveau_device_del(&screen->device);
 142
 143         free(screen);
 144         dri_screen->driverPrivate = NULL;
 145 }
 146
 147 static GLboolean
 148 nouveau_create_buffer(__DRIscreen *dri_screen,
 149                       __DRIdrawable *drawable,
 150                       const struct gl_config *visual,
 151                       GLboolean is_pixmap)
 152 {
 153         struct gl_renderbuffer *rb;
 154         struct gl_framebuffer *fb;
 155         GLenum color_format;
 156
 157         if (is_pixmap)
 158                 return GL_FALSE; /* not implemented */
 159
 160         if (visual->redBits == 5)
 161                 color_format = GL_RGB5;
 162         else if (visual->alphaBits == 0)
 163                 color_format = GL_RGB8;
 164         else
 165                 color_format = GL_RGBA8;
 166
 167         fb = nouveau_framebuffer_dri_new(visual);
 168         if (!fb)
 169                 return GL_FALSE;
 170
 171         /* Front buffer. */
 172         rb = nouveau_renderbuffer_dri_new(color_format, drawable);
 173         _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, rb);
 174
 175         /* Back buffer */
 176         if (visual->doubleBufferMode) {
 177                 rb = nouveau_renderbuffer_dri_new(color_format, drawable);
 178                 _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, rb);
 179         }
 180
 181         /* Depth/stencil buffer. */
 182         if (visual->depthBits == 24 && visual->stencilBits == 8) {
 183                 rb = nouveau_renderbuffer_dri_new(GL_DEPTH24_STENCIL8_EXT, drawable);
 184                 _mesa_add_renderbuffer(fb, BUFFER_DEPTH, rb);
 185                 _mesa_add_renderbuffer(fb, BUFFER_STENCIL, rb);
 186
 187         } else if (visual->depthBits == 24) {
 188                 rb = nouveau_renderbuffer_dri_new(GL_DEPTH_COMPONENT24, drawable);
 189                 _mesa_add_renderbuffer(fb, BUFFER_DEPTH, rb);
 190
 191         } else if (visual->depthBits == 16) {
 192                 rb = nouveau_renderbuffer_dri_new(GL_DEPTH_COMPONENT16, drawable);
 193                 _mesa_add_renderbuffer(fb, BUFFER_DEPTH, rb);
 194         }
 195
 196         /* Software renderbuffers. */
 197         _swrast_add_soft_renderbuffers(fb, GL_FALSE, GL_FALSE, GL_FALSE,
 198                                        visual->accumRedBits > 0,
 199                                        GL_FALSE, GL_FALSE);
 200
 201         drawable->driverPrivate = fb;
 202
 203         return GL_TRUE;
 204 }
 205
 206 static void
 207 nouveau_destroy_buffer(__DRIdrawable *drawable)
 208 {
 209         _mesa_reference_framebuffer(
 210                 (struct gl_framebuffer **)&drawable->driverPrivate, NULL);
 211 }
 212
 213 static void
 214 nouveau_drawable_flush(__DRIdrawable *draw)
 215 {
 216 }
 217
 218 static const struct __DRI2flushExtensionRec nouveau_flush_extension = {
 219     { __DRI2_FLUSH, 3 },
 220     nouveau_drawable_flush,
 221     dri2InvalidateDrawable,
 222 };
 223
 224 static const struct __DRItexBufferExtensionRec nouveau_texbuffer_extension = {
 225     { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
 226     NULL,
 227     nouveau_set_texbuffer,
 228 };
 229
 230 static const __DRIextension *nouveau_screen_extensions[] = {
 231     &nouveau_flush_extension.base,
 232     &nouveau_texbuffer_extension.base,
 233     &dri2ConfigQueryExtension.base,
 234     NULL
 235 };
 236
 237 const struct __DriverAPIRec driDriverAPI = {
 238         .InitScreen      = nouveau_init_screen2,
 239         .DestroyScreen   = nouveau_destroy_screen,
 240         .CreateBuffer    = nouveau_create_buffer,
 241         .DestroyBuffer   = nouveau_destroy_buffer,
 242         .CreateContext   = nouveau_context_create,
 243         .DestroyContext  = nouveau_context_destroy,
 244         .MakeCurrent     = nouveau_context_make_current,
 245         .UnbindContext   = nouveau_context_unbind,
 246 };
 247
 248 /* This is the table of extensions that the loader will dlsym() for. */
 249 PUBLIC const __DRIextension *__driDriverExtensions[] = {
 250         &driCoreExtension.base,
 251         &driDRI2Extension.base,
 252         NULL
 253 };