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 *
nouveau_get_renderer_string(unsigned chipset)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 *
nouveau_get_string(struct gl_context * ctx,GLenum name)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
nouveau_flush(struct gl_context * ctx,unsigned gallium_flush_flags)67 nouveau_flush(struct gl_context *ctx, unsigned gallium_flush_flags)
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
nouveau_finish(struct gl_context * ctx)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, 0);
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
nouveau_clear(struct gl_context * ctx,GLbitfield buffers)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
nouveau_driver_functions_init(struct dd_function_table * functions)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 }
183