src/mesa/drivers/dri/nouveau/nouveau_driver.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_util.h"
  31
  32 #include "drivers/common/meta.h"
  33
  34 static const GLubyte *
  35 nouveau_get_string(GLcontext *ctx, GLenum name)
  36 {
  37         static char buffer[128];
  38         char hardware_name[32];
  39
  40         switch (name) {
  41                 case GL_VENDOR:
  42                         return (GLubyte *)"Nouveau";
  43
  44                 case GL_RENDERER:
  45                         sprintf(hardware_name, "nv%02X", context_chipset(ctx));
  46                         driGetRendererString(buffer, hardware_name, DRIVER_DATE, 0);
  47
  48                         return (GLubyte *)buffer;
  49                 default:
  50                         return NULL;
  51         }
  52 }
  53
  54 static void
  55 nouveau_flush(GLcontext *ctx)
  56 {
  57         struct nouveau_context *nctx = to_nouveau_context(ctx);
  58         struct nouveau_channel *chan = context_chan(ctx);
  59
  60         FIRE_RING(chan);
  61
  62         if (ctx->DrawBuffer->Name == 0 &&
  63             ctx->DrawBuffer->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT) {
  64                 __DRIscreen *screen = nctx->screen->dri_screen;
  65                 __DRIdri2LoaderExtension *dri2 = screen->dri2.loader;
  66                 __DRIdrawable *drawable = nctx->dri_context->driDrawablePriv;
  67
  68                 dri2->flushFrontBuffer(drawable, drawable->loaderPrivate);
  69         }
  70
  71         nctx->drawable.dirty = GL_FALSE;
  72 }
  73
  74 static void
  75 nouveau_finish(GLcontext *ctx)
  76 {
  77         nouveau_flush(ctx);
  78 }
  79
  80 void
  81 nouveau_clear(GLcontext *ctx, GLbitfield buffers)
  82 {
  83         struct gl_framebuffer *fb = ctx->DrawBuffer;
  84         int x, y, w, h;
  85         int i, buf;
  86
  87         nouveau_validate_framebuffer(ctx);
  88         get_scissors(fb, &x, &y, &w, &h);
  89
  90         for (i = 0; i < BUFFER_COUNT; i++) {
  91                 struct nouveau_surface *s;
  92                 unsigned mask, value;
  93
  94                 buf = buffers & (1 << i);
  95                 if (!buf)
  96                         continue;
  97
  98                 s = &to_nouveau_renderbuffer(
  99                         fb->Attachment[i].Renderbuffer->Wrapped)->surface;
 100
 101                 if (buf & BUFFER_BITS_COLOR) {
 102                         mask = pack_rgba_i(s->format, ctx->Color.ColorMask[0]);
 103                         value = pack_rgba_f(s->format, ctx->Color.ClearColor);
 104
 105                         if (mask)
 106                                 context_drv(ctx)->surface_fill(
 107                                         ctx, s, mask, value, x, y, w, h);
 108
 109                         buffers &= ~buf;
 110
 111                 } else if (buf & (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL)) {
 112                         mask = pack_zs_i(s->format,
 113                                          (buffers & BUFFER_BIT_DEPTH &&
 114                                           ctx->Depth.Mask) ? ~0 : 0,
 115                                          (buffers & BUFFER_BIT_STENCIL &&
 116                                           ctx->Stencil.WriteMask[0]) ? ~0 : 0);
 117                         value = pack_zs_f(s->format,
 118                                           ctx->Depth.Clear,
 119                                           ctx->Stencil.Clear);
 120
 121                         if (mask)
 122                                 context_drv(ctx)->surface_fill(
 123                                         ctx, s, mask, value, x, y, w, h);
 124
 125                         buffers &= ~(BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL);
 126                 }
 127         }
 128
 129         if (buffers)
 130                 _mesa_meta_Clear(ctx, buffers);
 131 }
 132
 133 void
 134 nouveau_driver_functions_init(struct dd_function_table *functions)
 135 {
 136         functions->GetString = nouveau_get_string;
 137         functions->Flush = nouveau_flush;
 138         functions->Finish = nouveau_finish;
 139         functions->Clear = nouveau_clear;
 140 }