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  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. }
  160.