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 const char const *nouveau_vendor_string = "Nouveau";
  38
  39 const char *
  40 nouveau_get_renderer_string(unsigned chipset)
  41 {
  42         char hardware_name[32];
  43         static char buffer[128];
  44
  45         snprintf(hardware_name, sizeof(hardware_name), "nv%02X", chipset);
  46         driGetRendererString(buffer, hardware_name, 0);
  47
  48         return buffer;
  49 }
  50
  51 static const GLubyte *
  52 nouveau_get_string(struct gl_context *ctx, GLenum name)
  53 {
  54         switch (name) {
  55                 case GL_VENDOR:
  56                         return (GLubyte *)nouveau_vendor_string;
  57
  58                 case GL_RENDERER:
  59                         return (GLubyte *)nouveau_get_renderer_string(context_chipset(ctx));
  60                 default:
  61                         return NULL;
  62         }
  63 }
  64
  65 static void
  66 nouveau_flush(struct gl_context *ctx)
  67 {
  68         struct nouveau_context *nctx = to_nouveau_context(ctx);
  69         struct nouveau_pushbuf *push = context_push(ctx);
  70
  71         PUSH_KICK(push);
  72
  73         if (_mesa_is_winsys_fbo(ctx->DrawBuffer) &&
  74             ctx->DrawBuffer->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT) {
  75                 __DRIscreen *screen = nctx->screen->dri_screen;
  76                 const __DRIdri2LoaderExtension *dri2 = screen->dri2.loader;
  77                 __DRIdrawable *drawable = nctx->dri_context->driDrawablePriv;
  78
  79                 if (drawable && drawable->loaderPrivate)
  80                         dri2->flushFrontBuffer(drawable, drawable->loaderPrivate);
  81         }
  82 }
  83
  84 static void
  85 nouveau_finish(struct gl_context *ctx)
  86 {
  87         struct nouveau_context *nctx = to_nouveau_context(ctx);
  88         struct nouveau_pushbuf *push = context_push(ctx);
  89         struct nouveau_pushbuf_refn refn =
  90                 { nctx->fence, NOUVEAU_BO_VRAM | NOUVEAU_BO_RDWR };
  91
  92         nouveau_flush(ctx);
  93
  94         if (!nouveau_pushbuf_space(push, 16, 0, 0) &&
  95             !nouveau_pushbuf_refn(push, &refn, 1)) {
  96                 PUSH_DATA(push, 0);
  97                 PUSH_KICK(push);
  98         }
  99
 100         nouveau_bo_wait(nctx->fence, NOUVEAU_BO_RDWR, context_client(ctx));
 101 }
 102
 103 void
 104 nouveau_clear(struct gl_context *ctx, GLbitfield buffers)
 105 {
 106         struct gl_framebuffer *fb = ctx->DrawBuffer;
 107         int x, y, w, h;
 108         int i, buf;
 109
 110         nouveau_validate_framebuffer(ctx);
 111         get_scissors(fb, &x, &y, &w, &h);
 112
 113         for (i = 0; i < BUFFER_COUNT; i++) {
 114                 struct nouveau_surface *s;
 115                 unsigned mask, value;
 116
 117                 buf = buffers & (1 << i);
 118                 if (!buf)
 119                         continue;
 120
 121                 s = &to_nouveau_renderbuffer(
 122                         fb->Attachment[i].Renderbuffer)->surface;
 123
 124                 if (buf & BUFFER_BITS_COLOR) {
 125                         const float *color = ctx->Color.ClearColor.f;
 126
 127                         if (fb->Attachment[i].Renderbuffer->_BaseFormat ==
 128                             GL_LUMINANCE_ALPHA)
 129                                 value = pack_la_clamp_f(
 130                                                 s->format, color[0], color[3]);
 131                         else
 132                                 value = pack_rgba_clamp_f(s->format, color);
 133
 134                         mask = pack_rgba_i(s->format, ctx->Color.ColorMask[0]);
 135
 136                         if (mask)
 137                                 context_drv(ctx)->surface_fill(
 138                                         ctx, s, mask, value, x, y, w, h);
 139
 140                         buffers &= ~buf;
 141
 142                 } else if (buf & (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL)) {
 143                         mask = pack_zs_i(s->format,
 144                                          (buffers & BUFFER_BIT_DEPTH &&
 145                                           ctx->Depth.Mask) ? ~0 : 0,
 146                                          (buffers & BUFFER_BIT_STENCIL ?
 147                                           ctx->Stencil.WriteMask[0] : 0));
 148                         value = pack_zs_f(s->format,
 149                                           ctx->Depth.Clear,
 150                                           ctx->Stencil.Clear);
 151
 152                         if (mask)
 153                                 context_drv(ctx)->surface_fill(
 154                                         ctx, s, mask, value, x, y, w, h);
 155
 156                         buffers &= ~(BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL);
 157                 }
 158         }
 159
 160         if (buffers)
 161                 _mesa_meta_Clear(ctx, buffers);
 162 }
 163
 164 void
 165 nouveau_driver_functions_init(struct dd_function_table *functions)
 166 {
 167         functions->GetString = nouveau_get_string;
 168         functions->Flush = nouveau_flush;
 169         functions->Finish = nouveau_finish;
 170         functions->Clear = nouveau_clear;
 171         functions->DrawPixels = _mesa_meta_DrawPixels;
 172         functions->CopyPixels = _mesa_meta_CopyPixels;
 173         functions->Bitmap = _mesa_meta_Bitmap;
 174         functions->BlitFramebuffer = _mesa_meta_and_swrast_BlitFramebuffer;
 175 }