1
/**********************************************************
2
* Copyright 2008-2009 VMware, Inc. All rights reserved.
4
* Permission is hereby granted, free of charge, to any person
5
* obtaining a copy of this software and associated documentation
6
* files (the "Software"), to deal in the Software without
7
* restriction, including without limitation the rights to use, copy,
8
* modify, merge, publish, distribute, sublicense, and/or sell copies
9
* of the Software, and to permit persons to whom the Software is
10
* furnished to do so, subject to the following conditions:
12
* The above copyright notice and this permission notice shall be
13
* included in all copies or substantial portions of the Software.
15
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24
**********************************************************/
26
#include "util/u_framebuffer.h"
27
#include "util/u_inlines.h"
28
#include "util/u_pstipple.h"
31
#include "svga_context.h"
32
#include "svga_screen.h"
33
#include "svga_surface.h"
34
#include "svga_resource_texture.h"
38
svga_set_scissor_states(struct pipe_context *pipe,
40
unsigned num_scissors,
41
const struct pipe_scissor_state *scissors)
43
ASSERTED struct svga_screen *svgascreen = svga_screen(pipe->screen);
44
struct svga_context *svga = svga_context(pipe);
47
assert(start_slot + num_scissors <= svgascreen->max_viewports);
49
for (i = 0, num_sc = start_slot; i < num_scissors; i++) {
50
svga->curr.scissor[num_sc++] = scissors[i]; /* struct copy */
53
svga->dirty |= SVGA_NEW_SCISSOR;
58
svga_set_polygon_stipple(struct pipe_context *pipe,
59
const struct pipe_poly_stipple *stipple)
61
struct svga_context *svga = svga_context(pipe);
63
/* release old texture */
64
pipe_resource_reference(&svga->polygon_stipple.texture, NULL);
66
/* release old sampler view */
67
if (svga->polygon_stipple.sampler_view) {
68
pipe->sampler_view_destroy(pipe,
69
&svga->polygon_stipple.sampler_view->base);
72
/* create new stipple texture */
73
svga->polygon_stipple.texture =
74
util_pstipple_create_stipple_texture(pipe, stipple->stipple);
76
/* create new sampler view */
77
svga->polygon_stipple.sampler_view =
78
(struct svga_pipe_sampler_view *)
79
util_pstipple_create_sampler_view(pipe,
80
svga->polygon_stipple.texture);
82
/* allocate sampler state, if first time */
83
if (!svga->polygon_stipple.sampler) {
84
svga->polygon_stipple.sampler = util_pstipple_create_sampler(pipe);
87
svga->dirty |= SVGA_NEW_STIPPLE;
92
svga_cleanup_framebuffer(struct svga_context *svga)
94
struct svga_screen *svgascreen = svga_screen(svga->pipe.screen);
95
struct pipe_framebuffer_state *curr = &svga->curr.framebuffer;
96
struct pipe_framebuffer_state *hw = &svga->state.hw_clear.framebuffer;
99
for (i = 0; i < svgascreen->max_color_buffers; i++) {
100
pipe_surface_reference(&curr->cbufs[i], NULL);
101
pipe_surface_reference(&hw->cbufs[i], NULL);
104
pipe_surface_reference(&curr->zsbuf, NULL);
105
pipe_surface_reference(&hw->zsbuf, NULL);
109
#define DEPTH_BIAS_SCALE_FACTOR_D16 ((float)(1<<15))
110
#define DEPTH_BIAS_SCALE_FACTOR_D24S8 ((float)(1<<23))
111
#define DEPTH_BIAS_SCALE_FACTOR_D32 ((float)(1<<31))
115
svga_set_framebuffer_state(struct pipe_context *pipe,
116
const struct pipe_framebuffer_state *fb)
118
struct svga_context *svga = svga_context(pipe);
119
struct pipe_framebuffer_state *dst = &svga->curr.framebuffer;
122
/* make sure any pending drawing calls are flushed before changing
123
* the framebuffer state
125
svga_hwtnl_flush_retry(svga);
127
dst->width = fb->width;
128
dst->height = fb->height;
129
dst->nr_cbufs = fb->nr_cbufs;
131
/* Check that all surfaces are the same size.
132
* Actually, the virtual hardware may support rendertargets with
133
* different size, depending on the host API and driver,
136
int width = 0, height = 0;
138
width = fb->zsbuf->width;
139
height = fb->zsbuf->height;
141
for (i = 0; i < fb->nr_cbufs; ++i) {
143
if (width && height) {
144
if (fb->cbufs[i]->width != width ||
145
fb->cbufs[i]->height != height) {
146
debug_warning("Mixed-size color and depth/stencil surfaces "
147
"may not work properly");
151
width = fb->cbufs[i]->width;
152
height = fb->cbufs[i]->height;
158
util_copy_framebuffer_state(dst, fb);
160
if (svga->curr.framebuffer.zsbuf) {
161
switch (svga->curr.framebuffer.zsbuf->format) {
162
case PIPE_FORMAT_Z16_UNORM:
163
svga->curr.depthscale = 1.0f / DEPTH_BIAS_SCALE_FACTOR_D16;
165
case PIPE_FORMAT_Z24_UNORM_S8_UINT:
166
case PIPE_FORMAT_Z24X8_UNORM:
167
case PIPE_FORMAT_S8_UINT_Z24_UNORM:
168
case PIPE_FORMAT_X8Z24_UNORM:
169
svga->curr.depthscale = 1.0f / DEPTH_BIAS_SCALE_FACTOR_D24S8;
171
case PIPE_FORMAT_Z32_UNORM:
172
svga->curr.depthscale = 1.0f / DEPTH_BIAS_SCALE_FACTOR_D32;
174
case PIPE_FORMAT_Z32_FLOAT:
175
svga->curr.depthscale = 1.0f / ((float)(1<<23));
178
svga->curr.depthscale = 0.0f;
183
svga->curr.depthscale = 0.0f;
186
svga->dirty |= SVGA_NEW_FRAME_BUFFER;
191
svga_set_clip_state(struct pipe_context *pipe,
192
const struct pipe_clip_state *clip)
194
struct svga_context *svga = svga_context(pipe);
196
svga->curr.clip = *clip; /* struct copy */
198
svga->dirty |= SVGA_NEW_CLIP;
203
svga_set_viewport_states(struct pipe_context *pipe,
205
unsigned num_viewports,
206
const struct pipe_viewport_state *viewports)
208
struct svga_context *svga = svga_context(pipe);
209
ASSERTED struct svga_screen *svgascreen = svga_screen(pipe->screen);
212
assert(start_slot + num_viewports <= svgascreen->max_viewports);
214
for (i = 0, num_vp = start_slot; i < num_viewports; i++) {
215
svga->curr.viewport[num_vp++] = viewports[i]; /* struct copy */
218
svga->dirty |= SVGA_NEW_VIEWPORT;
223
* Called by state tracker to specify a callback function the driver
224
* can use to report info back to the gallium frontend.
227
svga_set_debug_callback(struct pipe_context *pipe,
228
const struct util_debug_callback *cb)
230
struct svga_context *svga = svga_context(pipe);
233
svga->debug.callback = *cb;
234
svga->swc->debug_callback = &svga->debug.callback;
236
memset(&svga->debug.callback, 0, sizeof(svga->debug.callback));
237
svga->swc->debug_callback = NULL;
243
svga_init_misc_functions(struct svga_context *svga)
245
svga->pipe.set_scissor_states = svga_set_scissor_states;
246
svga->pipe.set_polygon_stipple = svga_set_polygon_stipple;
247
svga->pipe.set_framebuffer_state = svga_set_framebuffer_state;
248
svga->pipe.set_clip_state = svga_set_clip_state;
249
svga->pipe.set_viewport_states = svga_set_viewport_states;
250
svga->pipe.set_debug_callback = svga_set_debug_callback;