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 <stdio.h>
  28 #include "main/mtypes.h"
  29 #include "main/fbobject.h"
  30
  31 #include "nouveau_driver.h"
  32 #include "nouveau_context.h"
  33 #include "nouveau_fbo.h"
  34 #include "nouveau_util.h"
  35
  36 #include "drivers/common/meta.h"
  37
  38 const char * const nouveau_vendor_string = "Nouveau";
  39
  40 const char *
  41 nouveau_get_renderer_string(unsigned chipset)
  42 {
  43         char hardware_name[32];
  44         static char buffer[128];
  45
  46         snprintf(hardware_name, sizeof(hardware_name), "nv%02X", chipset);
  47         driGetRendererString(buffer, hardware_name, 0);
  48
  49         return buffer;
  50 }
  51
  52 static const GLubyte *
  53 nouveau_get_string(struct gl_context *ctx, GLenum name)
  54 {
  55         switch (name) {
  56                 case GL_VENDOR:
  57                         return (GLubyte *)nouveau_vendor_string;
  58
  59                 case GL_RENDERER:
  60                         return (GLubyte *)nouveau_get_renderer_string(context_chipset(ctx));
  61                 default:
  62                         return NULL;
  63         }
  64 }
  65
  66 static void
  67 nouveau_flush(struct gl_context *ctx)
  68 {
  69         struct nouveau_context *nctx = to_nouveau_context(ctx);
  70         struct nouveau_pushbuf *push = context_push(ctx);
  71
  72         PUSH_KICK(push);
  73
  74         if (_mesa_is_winsys_fbo(ctx->DrawBuffer) &&
  75             ctx->DrawBuffer->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT) {
  76                 __DRIscreen *screen = nctx->screen->dri_screen;
  77                 const __DRIdri2LoaderExtension *dri2 = screen->dri2.loader;
  78                 __DRIdrawable *drawable = nctx->dri_context->driDrawablePriv;
  79
  80                 if (drawable && drawable->loaderPrivate)
  81                         dri2->flushFrontBuffer(drawable, drawable->loaderPrivate);
  82         }
  83 }
  84
  85 static void
  86 nouveau_finish(struct gl_context *ctx)
  87 {
  88         struct nouveau_context *nctx = to_nouveau_context(ctx);
  89         struct nouveau_pushbuf *push = context_push(ctx);
  90         struct nouveau_pushbuf_refn refn =
  91                 { nctx->fence, NOUVEAU_BO_VRAM | NOUVEAU_BO_RDWR };
  92
  93         nouveau_flush(ctx);
  94
  95         if (!nouveau_pushbuf_space(push, 16, 0, 0) &&
  96             !nouveau_pushbuf_refn(push, &refn, 1)) {
  97                 PUSH_DATA(push, 0);
  98                 PUSH_KICK(push);
  99         }
 100
 101         nouveau_bo_wait(nctx->fence, NOUVEAU_BO_RDWR, context_client(ctx));
 102 }
 103
 104 void
 105 nouveau_clear(struct gl_context *ctx, GLbitfield buffers)
 106 {
 107         struct gl_framebuffer *fb = ctx->DrawBuffer;
 108         int x, y, w, h;
 109         int i, buf;
 110
 111         nouveau_validate_framebuffer(ctx);
 112         get_scissors(fb, &x, &y, &w, &h);
 113
 114         for (i = 0; i < BUFFER_COUNT; i++) {
 115                 struct nouveau_surface *s;
 116                 unsigned mask, value;
 117
 118                 buf = buffers & (1 << i);
 119                 if (!buf)
 120                         continue;
 121
 122                 s = &to_nouveau_renderbuffer(
 123                         fb->Attachment[i].Renderbuffer)->surface;
 124
 125                 if (buf & BUFFER_BITS_COLOR) {
 126                         const float *color = ctx->Color.ClearColor.f;
 127
 128                         if (fb->Attachment[i].Renderbuffer->_BaseFormat ==
 129                             GL_LUMINANCE_ALPHA)
 130                                 value = pack_la_clamp_f(
 131                                                 s->format, color[0], color[3]);
 132                         else
 133                                 value = pack_rgba_clamp_f(s->format, color);
 134
 135                         const uint8_t colormask[4] = {
 136                                 GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 0) ? 0xff : 0,
 137                                 GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 1) ? 0xff : 0,
 138                                 GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 2) ? 0xff : 0,
 139                                 GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 3) ? 0xff : 0,
 140                         };
 141                         mask = pack_rgba_i(s->format, colormask);
 142
 143                         if (mask)
 144                                 context_drv(ctx)->surface_fill(
 145                                         ctx, s, mask, value, x, y, w, h);
 146
 147                         buffers &= ~buf;
 148
 149                 } else if (buf & (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL)) {
 150                         mask = pack_zs_i(s->format,
 151                                          (buffers & BUFFER_BIT_DEPTH &&
 152                                           ctx->Depth.Mask) ? ~0 : 0,
 153                                          (buffers & BUFFER_BIT_STENCIL ?
 154                                           ctx->Stencil.WriteMask[0] : 0));
 155                         value = pack_zs_f(s->format,
 156                                           ctx->Depth.Clear,
 157                                           ctx->Stencil.Clear);
 158
 159                         if (mask)
 160                                 context_drv(ctx)->surface_fill(
 161                                         ctx, s, mask, value, x, y, w, h);
 162
 163                         buffers &= ~(BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL);
 164                 }
 165         }
 166
 167         if (buffers)
 168                 _mesa_meta_Clear(ctx, buffers);
 169 }
 170
 171 void
 172 nouveau_driver_functions_init(struct dd_function_table *functions)
 173 {
 174         functions->GetString = nouveau_get_string;
 175         functions->Flush = nouveau_flush;
 176         functions->Finish = nouveau_finish;
 177         functions->Clear = nouveau_clear;
 178         functions->DrawPixels = _mesa_meta_DrawPixels;
 179         functions->CopyPixels = _mesa_meta_CopyPixels;
 180         functions->Bitmap = _mesa_meta_Bitmap;
 181         functions->BlitFramebuffer = _mesa_meta_and_swrast_BlitFramebuffer;
 182 }