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/mfeatures.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 static const GLubyte *
nouveau_get_string(struct gl_context * ctx,GLenum name)39 nouveau_get_string(struct gl_context *ctx, GLenum name)
40 {
41 static char buffer[128];
42 char hardware_name[32];
43
44 switch (name) {
45 case GL_VENDOR:
46 return (GLubyte *)"Nouveau";
47
48 case GL_RENDERER:
49 sprintf(hardware_name, "nv%02X", context_chipset(ctx));
50 driGetRendererString(buffer, hardware_name, 0);
51
52 return (GLubyte *)buffer;
53 default:
54 return NULL;
55 }
56 }
57
58 static void
nouveau_flush(struct gl_context * ctx)59 nouveau_flush(struct gl_context *ctx)
60 {
61 struct nouveau_context *nctx = to_nouveau_context(ctx);
62 struct nouveau_pushbuf *push = context_push(ctx);
63
64 PUSH_KICK(push);
65
66 if (_mesa_is_winsys_fbo(ctx->DrawBuffer) &&
67 ctx->DrawBuffer->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT) {
68 __DRIscreen *screen = nctx->screen->dri_screen;
69 __DRIdri2LoaderExtension *dri2 = screen->dri2.loader;
70 __DRIdrawable *drawable = nctx->dri_context->driDrawablePriv;
71
72 dri2->flushFrontBuffer(drawable, drawable->loaderPrivate);
73 }
74 }
75
76 static void
nouveau_finish(struct gl_context * ctx)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
nouveau_clear(struct gl_context * ctx,GLbitfield buffers)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
nouveau_driver_functions_init(struct dd_function_table * functions)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 #if FEATURE_EXT_framebuffer_blit
159 functions->BlitFramebuffer = _mesa_meta_BlitFramebuffer;
160 #endif
161 }
162