src/gallium/winsys/drm/nouveau/dri/nouveau_screen_dri.c

   1 #include <utils.h>
   2 #include <vblank.h>
   3 #include <xmlpool.h>
   4
   5 #include <pipe/p_context.h>
   6 #include <state_tracker/st_public.h>
   7 #include <state_tracker/st_cb_fbo.h>
   8 #include <nouveau_drm.h>
   9 #include "../common/nouveau_dri.h"
  10 #include "../common/nouveau_local.h"
  11 #include "nouveau_context_dri.h"
  12 #include "nouveau_screen_dri.h"
  13 #include "nouveau_swapbuffers.h"
  14
  15 #if NOUVEAU_DRM_HEADER_PATCHLEVEL != 11
  16 #error nouveau_drm.h version does not match expected version
  17 #endif
  18
  19 /* Extension stuff, enabling of extensions handled by Gallium's GL state
  20  * tracker.  But, we still need to define the entry points we want.
  21  */
  22 #define need_GL_ARB_fragment_program
  23 #define need_GL_ARB_multisample
  24 #define need_GL_ARB_occlusion_query
  25 #define need_GL_ARB_point_parameters
  26 #define need_GL_ARB_shader_objects
  27 #define need_GL_ARB_texture_compression
  28 #define need_GL_ARB_vertex_program
  29 #define need_GL_ARB_vertex_shader
  30 #define need_GL_ARB_vertex_buffer_object
  31 #define need_GL_EXT_compiled_vertex_array
  32 #define need_GL_EXT_fog_coord
  33 #define need_GL_EXT_secondary_color
  34 #define need_GL_EXT_framebuffer_object
  35 #define need_GL_VERSION_2_0
  36 #define need_GL_VERSION_2_1
  37 #include "extension_helper.h"
  38
  39 const struct dri_extension card_extensions[] =
  40 {
  41         { "GL_ARB_multisample", GL_ARB_multisample_functions },
  42         { "GL_ARB_occlusion_query", GL_ARB_occlusion_query_functions },
  43         { "GL_ARB_point_parameters", GL_ARB_point_parameters_functions },
  44         { "GL_ARB_shader_objects", GL_ARB_shader_objects_functions },
  45         { "GL_ARB_shading_language_100", GL_VERSION_2_0_functions },
  46         { "GL_ARB_shading_language_120", GL_VERSION_2_1_functions },
  47         { "GL_ARB_texture_compression", GL_ARB_texture_compression_functions },
  48         { "GL_ARB_vertex_program", GL_ARB_vertex_program_functions },
  49         { "GL_ARB_vertex_shader", GL_ARB_vertex_shader_functions },
  50         { "GL_ARB_vertex_buffer_object", GL_ARB_vertex_buffer_object_functions },
  51         { "GL_EXT_compiled_vertex_array", GL_EXT_compiled_vertex_array_functions },
  52         { "GL_EXT_fog_coord", GL_EXT_fog_coord_functions },
  53         { "GL_EXT_framebuffer_object", GL_EXT_framebuffer_object_functions },
  54         { "GL_EXT_secondary_color", GL_EXT_secondary_color_functions },
  55         { NULL, 0 }
  56 };
  57
  58 PUBLIC const char __driConfigOptions[] =
  59 DRI_CONF_BEGIN
  60 DRI_CONF_END;
  61 static const GLuint __driNConfigOptions = 0;
  62
  63 extern const struct dri_extension common_extensions[];
  64 extern const struct dri_extension nv40_extensions[];
  65
  66 static GLboolean
  67 nouveau_create_buffer(__DRIscreenPrivate * driScrnPriv,
  68                       __DRIdrawablePrivate * driDrawPriv,
  69                       const __GLcontextModes *glVis, GLboolean pixmapBuffer)
  70 {
  71         struct nouveau_framebuffer *nvfb;
  72         enum pipe_format colour, depth, stencil;
  73
  74         if (pixmapBuffer)
  75                 return GL_FALSE;
  76
  77         nvfb = CALLOC_STRUCT(nouveau_framebuffer);
  78         if (!nvfb)
  79                 return GL_FALSE;
  80
  81         if (glVis->redBits == 5)
  82                 colour = PIPE_FORMAT_R5G6B5_UNORM;
  83         else
  84                 colour = PIPE_FORMAT_A8R8G8B8_UNORM;
  85
  86         if (glVis->depthBits == 16)
  87                 depth = PIPE_FORMAT_Z16_UNORM;
  88         else if (glVis->depthBits == 24)
  89                 depth = PIPE_FORMAT_Z24S8_UNORM;
  90         else
  91                 depth = PIPE_FORMAT_NONE;
  92
  93         if (glVis->stencilBits == 8)
  94                 stencil = PIPE_FORMAT_Z24S8_UNORM;
  95         else
  96                 stencil = PIPE_FORMAT_NONE;
  97
  98         nvfb->stfb = st_create_framebuffer(glVis, colour, depth, stencil,
  99                                            driDrawPriv->w, driDrawPriv->h,
 100                                            (void*)nvfb);
 101         if (!nvfb->stfb) {
 102                 free(nvfb);
 103                 return  GL_FALSE;
 104         }
 105
 106         driDrawPriv->driverPrivate = (void *)nvfb;
 107         return GL_TRUE;
 108 }
 109
 110 static void
 111 nouveau_destroy_buffer(__DRIdrawablePrivate * driDrawPriv)
 112 {
 113         struct nouveau_framebuffer *nvfb;
 114
 115         nvfb = (struct nouveau_framebuffer *)driDrawPriv->driverPrivate;
 116         st_unreference_framebuffer(nvfb->stfb);
 117         free(nvfb);
 118 }
 119
 120 static __DRIconfig **
 121 nouveau_fill_in_modes(__DRIscreenPrivate *psp,
 122                       unsigned pixel_bits, unsigned depth_bits,
 123                       unsigned stencil_bits, GLboolean have_back_buffer)
 124 {
 125         __DRIconfig **configs;
 126         unsigned depth_buffer_factor;
 127         unsigned back_buffer_factor;
 128         GLenum fb_format;
 129         GLenum fb_type;
 130
 131         static const GLenum back_buffer_modes[] = {
 132                 GLX_NONE, GLX_SWAP_UNDEFINED_OML,
 133         };
 134
 135         uint8_t depth_bits_array[3];
 136         uint8_t stencil_bits_array[3];
 137         uint8_t msaa_samples_array[1];
 138
 139         depth_bits_array[0] = 0;
 140         depth_bits_array[1] = depth_bits;
 141         depth_bits_array[2] = depth_bits;
 142
 143         /* Just like with the accumulation buffer, always provide some modes
 144          * with a stencil buffer.  It will be a sw fallback, but some apps won't
 145          * care about that.
 146          */
 147         stencil_bits_array[0] = 0;
 148         stencil_bits_array[1] = 0;
 149         if (depth_bits == 24)
 150                 stencil_bits_array[1] = (stencil_bits == 0) ? 8 : stencil_bits;
 151         stencil_bits_array[2] = (stencil_bits == 0) ? 8 : stencil_bits;
 152
 153         msaa_samples_array[0] = 0;
 154
 155         depth_buffer_factor =
 156                 ((depth_bits != 0) || (stencil_bits != 0)) ? 3 : 1;
 157         back_buffer_factor = (have_back_buffer) ? 3 : 1;
 158
 159         if (pixel_bits == 16) {
 160                 fb_format = GL_RGB;
 161                 fb_type = GL_UNSIGNED_SHORT_5_6_5;
 162         }
 163         else {
 164                 fb_format = GL_BGRA;
 165                 fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
 166         }
 167
 168         configs = driCreateConfigs(fb_format, fb_type,
 169                                    depth_bits_array, stencil_bits_array,
 170                                    depth_buffer_factor, back_buffer_modes,
 171                                    back_buffer_factor, msaa_samples_array, 1);
 172         if (configs == NULL) {
 173          fprintf(stderr, "[%s:%u] Error creating FBConfig!\n",
 174                          __func__, __LINE__);
 175                 return NULL;
 176         }
 177
 178         return configs;
 179 }
 180
 181 static const __DRIconfig **
 182 nouveau_screen_create(__DRIscreenPrivate *psp)
 183 {
 184         struct nouveau_dri *nv_dri = psp->pDevPriv;
 185         struct nouveau_screen_dri *nv_screen;
 186         static const __DRIversion ddx_expected =
 187                 { 0, 0, NOUVEAU_DRM_HEADER_PATCHLEVEL };
 188         static const __DRIversion dri_expected = { 4, 0, 0 };
 189         static const __DRIversion drm_expected =
 190                 { 0, 0, NOUVEAU_DRM_HEADER_PATCHLEVEL };
 191
 192         if (!driCheckDriDdxDrmVersions2("nouveau",
 193                                         &psp->dri_version, &dri_expected,
 194                                         &psp->ddx_version, &ddx_expected,
 195                                         &psp->drm_version, &drm_expected)) {
 196                 return NULL;
 197         }
 198
 199         if (drm_expected.patch != psp->drm_version.patch) {
 200                 fprintf(stderr, "Incompatible DRM patch level.\n"
 201                                 "Expected: %d\n" "Current : %d\n",
 202                         drm_expected.patch, psp->drm_version.patch);
 203                 return NULL;
 204         }
 205
 206         driInitExtensions(NULL, card_extensions, GL_FALSE);
 207
 208         if (psp->devPrivSize != sizeof(struct nouveau_dri)) {
 209                 NOUVEAU_ERR("DRI struct mismatch between DDX/DRI\n");
 210                 return NULL;
 211         }
 212
 213         nv_screen = CALLOC_STRUCT(nouveau_screen_dri);
 214         if (!nv_screen)
 215                 return NULL;
 216
 217         driParseOptionInfo(&nv_screen->option_cache,
 218                            __driConfigOptions, __driNConfigOptions);
 219
 220         if (nouveau_screen_init(nv_dri, psp->fd, &nv_screen->base)) {
 221                 FREE(nv_screen);
 222                 return NULL;
 223         }
 224
 225         nv_screen->driScrnPriv = psp;
 226         psp->private = (void *)nv_screen;
 227
 228         return (const __DRIconfig **)
 229                 nouveau_fill_in_modes(psp, nv_dri->bpp,
 230                                       (nv_dri->bpp == 16) ? 16 : 24,
 231                                       (nv_dri->bpp == 16) ? 0 : 8, 1);
 232 }
 233
 234 static void
 235 nouveau_screen_destroy(__DRIscreenPrivate *driScrnPriv)
 236 {
 237         struct nouveau_screen_dri *nv_screen = driScrnPriv->private;
 238
 239         driScrnPriv->private = NULL;
 240         nouveau_screen_cleanup(&nv_screen->base);
 241         FREE(nv_screen);
 242 }
 243
 244 const struct __DriverAPIRec
 245 driDriverAPI = {
 246         .InitScreen     = nouveau_screen_create,
 247         .DestroyScreen  = nouveau_screen_destroy,
 248         .CreateContext  = nouveau_context_create,
 249         .DestroyContext = nouveau_context_destroy,
 250         .CreateBuffer   = nouveau_create_buffer,
 251         .DestroyBuffer  = nouveau_destroy_buffer,
 252         .SwapBuffers    = nouveau_swap_buffers,
 253         .MakeCurrent    = nouveau_context_bind,
 254         .UnbindContext  = nouveau_context_unbind,
 255         .CopySubBuffer  = nouveau_copy_sub_buffer,
 256
 257         .InitScreen2    = NULL, /* one day, I promise! */
 258 };
 259