svga_pipe_misc.c revision 0ced789a0b56256891a2a26342befe645f4fa46d
1/********************************************************** 2 * Copyright 2008-2009 VMware, Inc. All rights reserved. 3 * 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: 11 * 12 * The above copyright notice and this permission notice shall be 13 * included in all copies or substantial portions of the Software. 14 * 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 22 * SOFTWARE. 23 * 24 **********************************************************/ 25 26#include "svga_cmd.h" 27 28#include "util/u_inlines.h" 29 30#include "svga_context.h" 31#include "svga_surface.h" 32 33 34static void svga_set_scissor_state( struct pipe_context *pipe, 35 const struct pipe_scissor_state *scissor ) 36{ 37 struct svga_context *svga = svga_context(pipe); 38 39 memcpy( &svga->curr.scissor, scissor, sizeof(*scissor) ); 40 svga->dirty |= SVGA_NEW_SCISSOR; 41} 42 43 44static void svga_set_polygon_stipple( struct pipe_context *pipe, 45 const struct pipe_poly_stipple *stipple ) 46{ 47 /* overridden by the draw module */ 48} 49 50 51void svga_cleanup_framebuffer(struct svga_context *svga) 52{ 53 struct pipe_framebuffer_state *curr = &svga->curr.framebuffer; 54 struct pipe_framebuffer_state *hw = &svga->state.hw_clear.framebuffer; 55 int i; 56 57 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { 58 pipe_surface_reference(&curr->cbufs[i], NULL); 59 pipe_surface_reference(&hw->cbufs[i], NULL); 60 } 61 62 pipe_surface_reference(&curr->zsbuf, NULL); 63 pipe_surface_reference(&hw->zsbuf, NULL); 64} 65 66 67#define DEPTH_BIAS_SCALE_FACTOR_D16 ((float)(1<<15)) 68#define DEPTH_BIAS_SCALE_FACTOR_D24S8 ((float)(1<<23)) 69#define DEPTH_BIAS_SCALE_FACTOR_D32 ((float)(1<<31)) 70 71 72static void svga_set_framebuffer_state(struct pipe_context *pipe, 73 const struct pipe_framebuffer_state *fb) 74{ 75 struct svga_context *svga = svga_context(pipe); 76 struct pipe_framebuffer_state *dst = &svga->curr.framebuffer; 77 boolean propagate = FALSE; 78 int i; 79 80 dst->width = fb->width; 81 dst->height = fb->height; 82 dst->nr_cbufs = fb->nr_cbufs; 83 84 /* check if we need to propaget any of the target surfaces */ 85 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { 86 if (dst->cbufs[i] && dst->cbufs[i] != fb->cbufs[i]) 87 if (svga_surface_needs_propagation(dst->cbufs[i])) 88 propagate = TRUE; 89 } 90 91 if (propagate) { 92 /* make sure that drawing calls comes before propagation calls */ 93 svga_hwtnl_flush_retry( svga ); 94 95 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) 96 if (dst->cbufs[i] && dst->cbufs[i] != fb->cbufs[i]) 97 svga_propagate_surface(svga, dst->cbufs[i]); 98 } 99 100 /* XXX: Actually the virtual hardware may support rendertargets with 101 * different size, depending on the host API and driver, but since we cannot 102 * know that make no such assumption here. */ 103 for(i = 0; i < fb->nr_cbufs; ++i) { 104 if (fb->zsbuf && fb->cbufs[i]) { 105 assert(fb->zsbuf->width == fb->cbufs[i]->width); 106 assert(fb->zsbuf->height == fb->cbufs[i]->height); 107 } 108 } 109 110 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) 111 pipe_surface_reference(&dst->cbufs[i], fb->cbufs[i]); 112 pipe_surface_reference(&dst->zsbuf, fb->zsbuf); 113 114 115 if (svga->curr.framebuffer.zsbuf) 116 { 117 switch (svga->curr.framebuffer.zsbuf->format) { 118 case PIPE_FORMAT_Z16_UNORM: 119 svga->curr.depthscale = 1.0f / DEPTH_BIAS_SCALE_FACTOR_D16; 120 break; 121 case PIPE_FORMAT_Z24_UNORM_S8_USCALED: 122 case PIPE_FORMAT_Z24X8_UNORM: 123 case PIPE_FORMAT_S8_USCALED_Z24_UNORM: 124 case PIPE_FORMAT_X8Z24_UNORM: 125 svga->curr.depthscale = 1.0f / DEPTH_BIAS_SCALE_FACTOR_D24S8; 126 break; 127 case PIPE_FORMAT_Z32_UNORM: 128 svga->curr.depthscale = 1.0f / DEPTH_BIAS_SCALE_FACTOR_D32; 129 break; 130 case PIPE_FORMAT_Z32_FLOAT: 131 svga->curr.depthscale = 1.0f / ((float)(1<<23)); 132 break; 133 default: 134 svga->curr.depthscale = 0.0f; 135 break; 136 } 137 } 138 else { 139 svga->curr.depthscale = 0.0f; 140 } 141 142 svga->dirty |= SVGA_NEW_FRAME_BUFFER; 143} 144 145 146 147static void svga_set_clip_state( struct pipe_context *pipe, 148 const struct pipe_clip_state *clip ) 149{ 150 struct svga_context *svga = svga_context(pipe); 151 152 svga->curr.clip = *clip; /* struct copy */ 153 154 svga->dirty |= SVGA_NEW_CLIP; 155} 156 157 158 159/* Called when driver state tracker notices changes to the viewport 160 * matrix: 161 */ 162static void svga_set_viewport_state( struct pipe_context *pipe, 163 const struct pipe_viewport_state *viewport ) 164{ 165 struct svga_context *svga = svga_context(pipe); 166 167 svga->curr.viewport = *viewport; /* struct copy */ 168 169 svga->dirty |= SVGA_NEW_VIEWPORT; 170} 171 172 173 174void svga_init_misc_functions( struct svga_context *svga ) 175{ 176 svga->pipe.set_scissor_state = svga_set_scissor_state; 177 svga->pipe.set_polygon_stipple = svga_set_polygon_stipple; 178 svga->pipe.set_framebuffer_state = svga_set_framebuffer_state; 179 svga->pipe.set_clip_state = svga_set_clip_state; 180 svga->pipe.set_viewport_state = svga_set_viewport_state; 181} 182 183 184