Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 5564 | serge | 1 | /************************************************************************** |
| 2 | * |
||
| 3 | * Copyright 2006 VMware, Inc. |
||
| 4 | * All Rights Reserved. |
||
| 5 | * |
||
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
||
| 7 | * copy of this software and associated documentation files (the |
||
| 8 | * "Software"), to deal in the Software without restriction, including |
||
| 9 | * without limitation the rights to use, copy, modify, merge, publish, |
||
| 10 | * distribute, sub license, and/or sell copies of the Software, and to |
||
| 11 | * permit persons to whom the Software is furnished to do so, subject to |
||
| 12 | * the following conditions: |
||
| 13 | * |
||
| 14 | * The above copyright notice and this permission notice (including the |
||
| 15 | * next paragraph) shall be included in all copies or substantial portionsalloc |
||
| 16 | * of the Software. |
||
| 17 | * |
||
| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
||
| 19 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
||
| 20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
||
| 21 | * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR |
||
| 22 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
||
| 23 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
||
| 24 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
||
| 25 | * |
||
| 26 | **************************************************************************/ |
||
| 27 | |||
| 28 | #include "main/accum.h" |
||
| 29 | #include "main/enums.h" |
||
| 30 | #include "main/state.h" |
||
| 31 | #include "main/bufferobj.h" |
||
| 32 | #include "main/context.h" |
||
| 33 | #include "swrast/swrast.h" |
||
| 34 | |||
| 35 | #include "intel_context.h" |
||
| 36 | #include "intel_pixel.h" |
||
| 37 | #include "intel_regions.h" |
||
| 38 | |||
| 39 | #define FILE_DEBUG_FLAG DEBUG_PIXEL |
||
| 40 | |||
| 41 | static GLenum |
||
| 42 | effective_func(GLenum func, bool src_alpha_is_one) |
||
| 43 | { |
||
| 44 | if (src_alpha_is_one) { |
||
| 45 | if (func == GL_SRC_ALPHA) |
||
| 46 | return GL_ONE; |
||
| 47 | if (func == GL_ONE_MINUS_SRC_ALPHA) |
||
| 48 | return GL_ZERO; |
||
| 49 | } |
||
| 50 | |||
| 51 | return func; |
||
| 52 | } |
||
| 53 | |||
| 54 | /** |
||
| 55 | * Check if any fragment operations are in effect which might effect |
||
| 56 | * glDraw/CopyPixels. |
||
| 57 | */ |
||
| 58 | bool |
||
| 59 | intel_check_blit_fragment_ops(struct gl_context * ctx, bool src_alpha_is_one) |
||
| 60 | { |
||
| 61 | if (ctx->NewState) |
||
| 62 | _mesa_update_state(ctx); |
||
| 63 | |||
| 64 | if (ctx->FragmentProgram._Enabled) { |
||
| 65 | DBG("fallback due to fragment program\n"); |
||
| 66 | return false; |
||
| 67 | } |
||
| 68 | |||
| 69 | if (ctx->Color.BlendEnabled && |
||
| 70 | (effective_func(ctx->Color.Blend[0].SrcRGB, src_alpha_is_one) != GL_ONE || |
||
| 71 | effective_func(ctx->Color.Blend[0].DstRGB, src_alpha_is_one) != GL_ZERO || |
||
| 72 | ctx->Color.Blend[0].EquationRGB != GL_FUNC_ADD || |
||
| 73 | effective_func(ctx->Color.Blend[0].SrcA, src_alpha_is_one) != GL_ONE || |
||
| 74 | effective_func(ctx->Color.Blend[0].DstA, src_alpha_is_one) != GL_ZERO || |
||
| 75 | ctx->Color.Blend[0].EquationA != GL_FUNC_ADD)) { |
||
| 76 | DBG("fallback due to blend\n"); |
||
| 77 | return false; |
||
| 78 | } |
||
| 79 | |||
| 80 | if (ctx->Texture._MaxEnabledTexImageUnit != -1) { |
||
| 81 | DBG("fallback due to texturing\n"); |
||
| 82 | return false; |
||
| 83 | } |
||
| 84 | |||
| 85 | if (!(ctx->Color.ColorMask[0][0] && |
||
| 86 | ctx->Color.ColorMask[0][1] && |
||
| 87 | ctx->Color.ColorMask[0][2] && |
||
| 88 | ctx->Color.ColorMask[0][3])) { |
||
| 89 | DBG("fallback due to color masking\n"); |
||
| 90 | return false; |
||
| 91 | } |
||
| 92 | |||
| 93 | if (ctx->Color.AlphaEnabled) { |
||
| 94 | DBG("fallback due to alpha\n"); |
||
| 95 | return false; |
||
| 96 | } |
||
| 97 | |||
| 98 | if (ctx->Depth.Test) { |
||
| 99 | DBG("fallback due to depth test\n"); |
||
| 100 | return false; |
||
| 101 | } |
||
| 102 | |||
| 103 | if (ctx->Fog.Enabled) { |
||
| 104 | DBG("fallback due to fog\n"); |
||
| 105 | return false; |
||
| 106 | } |
||
| 107 | |||
| 108 | if (ctx->_ImageTransferState) { |
||
| 109 | DBG("fallback due to image transfer\n"); |
||
| 110 | return false; |
||
| 111 | } |
||
| 112 | |||
| 113 | if (ctx->Stencil._Enabled) { |
||
| 114 | DBG("fallback due to image stencil\n"); |
||
| 115 | return false; |
||
| 116 | } |
||
| 117 | |||
| 118 | if (ctx->RenderMode != GL_RENDER) { |
||
| 119 | DBG("fallback due to render mode\n"); |
||
| 120 | return false; |
||
| 121 | } |
||
| 122 | |||
| 123 | return true; |
||
| 124 | } |
||
| 125 | |||
| 126 | void |
||
| 127 | intelInitPixelFuncs(struct dd_function_table *functions) |
||
| 128 | { |
||
| 129 | functions->Accum = _mesa_accum; |
||
| 130 | functions->Bitmap = intelBitmap; |
||
| 131 | functions->CopyPixels = intelCopyPixels; |
||
| 132 | functions->DrawPixels = intelDrawPixels; |
||
| 133 | functions->ReadPixels = intelReadPixels; |
||
| 134 | } |
||
| 135 |