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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 5563 | serge | 1 | /********************************************************** |
| 2 | * Copyright 2008-2009 VMware, Inc. All rights reserved. |
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| 3 | * |
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| 4 | * Permission is hereby granted, free of charge, to any person |
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| 5 | * obtaining a copy of this software and associated documentation |
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| 6 | * files (the "Software"), to deal in the Software without |
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| 7 | * restriction, including without limitation the rights to use, copy, |
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| 8 | * modify, merge, publish, distribute, sublicense, and/or sell copies |
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| 9 | * of the Software, and to permit persons to whom the Software is |
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| 10 | * furnished to do so, subject to the following conditions: |
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| 11 | * |
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| 12 | * The above copyright notice and this permission notice shall be |
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| 13 | * included in all copies or substantial portions of the Software. |
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| 14 | * |
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| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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| 16 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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| 17 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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| 18 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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| 19 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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| 20 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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| 21 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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| 22 | * SOFTWARE. |
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| 23 | * |
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| 24 | **********************************************************/ |
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| 25 | |||
| 26 | #include "svga_cmd.h" |
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| 27 | #include "svga_debug.h" |
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| 28 | |||
| 29 | #include "pipe/p_defines.h" |
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| 30 | #include "util/u_pack_color.h" |
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| 31 | |||
| 32 | #include "svga_context.h" |
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| 33 | #include "svga_state.h" |
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| 34 | #include "svga_surface.h" |
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| 35 | |||
| 36 | |||
| 37 | static enum pipe_error |
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| 38 | try_clear(struct svga_context *svga, |
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| 39 | unsigned buffers, |
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| 40 | const union pipe_color_union *color, |
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| 41 | double depth, |
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| 42 | unsigned stencil) |
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| 43 | { |
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| 44 | enum pipe_error ret = PIPE_OK; |
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| 45 | SVGA3dRect rect = { 0, 0, 0, 0 }; |
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| 46 | boolean restore_viewport = FALSE; |
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| 47 | SVGA3dClearFlag flags = 0; |
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| 48 | struct pipe_framebuffer_state *fb = &svga->curr.framebuffer; |
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| 49 | union util_color uc = {0}; |
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| 50 | |||
| 51 | ret = svga_update_state(svga, SVGA_STATE_HW_CLEAR); |
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| 52 | if (ret != PIPE_OK) |
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| 53 | return ret; |
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| 54 | |||
| 55 | if (svga->rebind.rendertargets) { |
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| 56 | ret = svga_reemit_framebuffer_bindings(svga); |
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| 57 | if (ret != PIPE_OK) { |
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| 58 | return ret; |
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| 59 | } |
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| 60 | } |
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| 61 | |||
| 62 | if ((buffers & PIPE_CLEAR_COLOR) && fb->cbufs[0]) { |
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| 63 | flags |= SVGA3D_CLEAR_COLOR; |
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| 64 | util_pack_color(color->f, PIPE_FORMAT_B8G8R8A8_UNORM, &uc); |
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| 65 | |||
| 66 | rect.w = fb->cbufs[0]->width; |
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| 67 | rect.h = fb->cbufs[0]->height; |
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| 68 | } |
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| 69 | |||
| 70 | if ((buffers & PIPE_CLEAR_DEPTHSTENCIL) && fb->zsbuf) { |
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| 71 | if (buffers & PIPE_CLEAR_DEPTH) |
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| 72 | flags |= SVGA3D_CLEAR_DEPTH; |
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| 73 | |||
| 74 | if ((svga->curr.framebuffer.zsbuf->format == PIPE_FORMAT_S8_UINT_Z24_UNORM) && |
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| 75 | (buffers & PIPE_CLEAR_STENCIL)) |
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| 76 | flags |= SVGA3D_CLEAR_STENCIL; |
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| 77 | |||
| 78 | rect.w = MAX2(rect.w, fb->zsbuf->width); |
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| 79 | rect.h = MAX2(rect.h, fb->zsbuf->height); |
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| 80 | } |
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| 81 | |||
| 82 | if (memcmp(&rect, &svga->state.hw_clear.viewport, sizeof(rect)) != 0) { |
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| 83 | restore_viewport = TRUE; |
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| 84 | ret = SVGA3D_SetViewport(svga->swc, &rect); |
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| 85 | if (ret != PIPE_OK) |
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| 86 | return ret; |
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| 87 | } |
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| 88 | |||
| 89 | ret = SVGA3D_ClearRect(svga->swc, flags, uc.ui, (float) depth, stencil, |
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| 90 | rect.x, rect.y, rect.w, rect.h); |
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| 91 | if (ret != PIPE_OK) |
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| 92 | return ret; |
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| 93 | |||
| 94 | if (restore_viewport) { |
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| 95 | memcpy(&rect, &svga->state.hw_clear.viewport, sizeof rect); |
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| 96 | ret = SVGA3D_SetViewport(svga->swc, &rect); |
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| 97 | } |
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| 98 | |||
| 99 | return ret; |
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| 100 | } |
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| 101 | |||
| 102 | /** |
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| 103 | * Clear the given surface to the specified value. |
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| 104 | * No masking, no scissor (clear entire buffer). |
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| 105 | */ |
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| 106 | void |
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| 107 | svga_clear(struct pipe_context *pipe, unsigned buffers, |
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| 108 | const union pipe_color_union *color, |
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| 109 | double depth, unsigned stencil) |
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| 110 | { |
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| 111 | struct svga_context *svga = svga_context( pipe ); |
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| 112 | enum pipe_error ret; |
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| 113 | |||
| 114 | if (buffers & PIPE_CLEAR_COLOR) |
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| 115 | SVGA_DBG(DEBUG_DMA, "clear sid %p\n", |
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| 116 | svga_surface(svga->curr.framebuffer.cbufs[0])->handle); |
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| 117 | |||
| 118 | /* flush any queued prims (don't want them to appear after the clear!) */ |
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| 119 | svga_hwtnl_flush_retry(svga); |
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| 120 | |||
| 121 | ret = try_clear( svga, buffers, color, depth, stencil ); |
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| 122 | |||
| 123 | if (ret == PIPE_ERROR_OUT_OF_MEMORY) { |
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| 124 | /* Flush command buffer and retry: |
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| 125 | */ |
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| 126 | svga_context_flush( svga, NULL ); |
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| 127 | |||
| 128 | ret = try_clear( svga, buffers, color, depth, stencil ); |
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| 129 | } |
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| 130 | |||
| 131 | /* |
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| 132 | * Mark target surfaces as dirty |
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| 133 | * TODO Mark only cleared surfaces. |
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| 134 | */ |
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| 135 | svga_mark_surfaces_dirty(svga); |
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| 136 | |||
| 137 | assert (ret == PIPE_OK); |
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| 138 | } |