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 "main/mtypes.h"
  28 #include "main/fbobject.h"
  29
  30 #include "nouveau_driver.h"
  31 #include "nouveau_context.h"
  32 #include "nouveau_fbo.h"
  33 #include "nouveau_util.h"
  34
  35 #include "drivers/common/meta.h"
  36
  37 static const GLubyte *
  38 nouveau_get_string(struct gl_context *ctx, GLenum name)
  39 {
  40         static char buffer[128];
  41         char hardware_name[32];
  42
  43         switch (name) {
  44                 case GL_VENDOR:
  45                         return (GLubyte *)"Nouveau";
  46
  47                 case GL_RENDERER:
  48                         sprintf(hardware_name, "nv%02X", context_chipset(ctx));
  49                         driGetRendererString(buffer, hardware_name, 0);
  50
  51                         return (GLubyte *)buffer;
  52                 default:
  53                         return NULL;
  54         }
  55 }
  56
  57 static void
  58 nouveau_flush(struct gl_context *ctx)
  59 {
  60         struct nouveau_context *nctx = to_nouveau_context(ctx);
  61         struct nouveau_pushbuf *push = context_push(ctx);
  62
  63         PUSH_KICK(push);
  64
  65         if (_mesa_is_winsys_fbo(ctx->DrawBuffer) &&
  66             ctx->DrawBuffer->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT) {
  67                 __DRIscreen *screen = nctx->screen->dri_screen;
  68                 __DRIdri2LoaderExtension *dri2 = screen->dri2.loader;
  69                 __DRIdrawable *drawable = nctx->dri_context->driDrawablePriv;
  70
  71                 if (drawable && drawable->loaderPrivate)
  72                         dri2->flushFrontBuffer(drawable, drawable->loaderPrivate);
  73         }
  74 }
  75
  76 static void
  77 nouveau_finish(struct gl_context *ctx)
  78 {
  79         struct nouveau_context *nctx = to_nouveau_context(ctx);
  80         struct nouveau_pushbuf *push = context_push(ctx);
  81         struct nouveau_pushbuf_refn refn =
  82                 { nctx->fence, NOUVEAU_BO_VRAM | NOUVEAU_BO_RDWR };
  83
  84         nouveau_flush(ctx);
  85
  86         if (!nouveau_pushbuf_space(push, 16, 0, 0) &&
  87             !nouveau_pushbuf_refn(push, &refn, 1)) {
  88                 PUSH_DATA(push, 0);
  89                 PUSH_KICK(push);
  90         }
  91
  92         nouveau_bo_wait(nctx->fence, NOUVEAU_BO_RDWR, context_client(ctx));
  93 }
  94
  95 void
  96 nouveau_clear(struct gl_context *ctx, GLbitfield buffers)
  97 {
  98         struct gl_framebuffer *fb = ctx->DrawBuffer;
  99         int x, y, w, h;
 100         int i, buf;
 101
 102         nouveau_validate_framebuffer(ctx);
 103         get_scissors(fb, &x, &y, &w, &h);
 104
 105         for (i = 0; i < BUFFER_COUNT; i++) {
 106                 struct nouveau_surface *s;
 107                 unsigned mask, value;
 108
 109                 buf = buffers & (1 << i);
 110                 if (!buf)
 111                         continue;
 112
 113                 s = &to_nouveau_renderbuffer(
 114                         fb->Attachment[i].Renderbuffer)->surface;
 115
 116                 if (buf & BUFFER_BITS_COLOR) {
 117                         mask = pack_rgba_i(s->format, ctx->Color.ColorMask[0]);
 118                         value = pack_rgba_clamp_f(s->format, ctx->Color.ClearColor.f);
 119
 120                         if (mask)
 121                                 context_drv(ctx)->surface_fill(
 122                                         ctx, s, mask, value, x, y, w, h);
 123
 124                         buffers &= ~buf;
 125
 126                 } else if (buf & (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL)) {
 127                         mask = pack_zs_i(s->format,
 128                                          (buffers & BUFFER_BIT_DEPTH &&
 129                                           ctx->Depth.Mask) ? ~0 : 0,
 130                                          (buffers & BUFFER_BIT_STENCIL ?
 131                                           ctx->Stencil.WriteMask[0] : 0));
 132                         value = pack_zs_f(s->format,
 133                                           ctx->Depth.Clear,
 134                                           ctx->Stencil.Clear);
 135
 136                         if (mask)
 137                                 context_drv(ctx)->surface_fill(
 138                                         ctx, s, mask, value, x, y, w, h);
 139
 140                         buffers &= ~(BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL);
 141                 }
 142         }
 143
 144         if (buffers)
 145                 _mesa_meta_Clear(ctx, buffers);
 146 }
 147
 148 void
 149 nouveau_driver_functions_init(struct dd_function_table *functions)
 150 {
 151         functions->GetString = nouveau_get_string;
 152         functions->Flush = nouveau_flush;
 153         functions->Finish = nouveau_finish;
 154         functions->Clear = nouveau_clear;
 155         functions->DrawPixels = _mesa_meta_DrawPixels;
 156         functions->CopyPixels = _mesa_meta_CopyPixels;
 157         functions->Bitmap = _mesa_meta_Bitmap;
 158         functions->BlitFramebuffer = _mesa_meta_BlitFramebuffer;
 159 }