| 1 | /* Copyright (c) 2001, Stanford University
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| 2 | * All rights reserved
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| 3 | *
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| 4 | * See the file LICENSE.txt for information on redistributing this software.
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| 5 | */
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| 6 |
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| 7 | #include "state.h"
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| 8 | #include "cr_error.h"
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| 9 | #include "cr_mem.h"
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| 10 | #include "cr_pixeldata.h"
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| 11 | #include <iprt/err.h>
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| 12 |
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| 13 | void crStateDiffContext( CRContext *from, CRContext *to )
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| 14 | {
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| 15 | CRbitvalue *bitID = from->bitid;
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| 16 | CRStateBits *sb = GetCurrentBits();
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| 17 |
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| 18 | /*crDebug( "Diffing two contexts!" ); */
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| 19 |
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| 20 | if (CHECKDIRTY(sb->transform.dirty, bitID))
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| 21 | {
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| 22 | crStateTransformDiff( &(sb->transform), bitID, from, to );
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| 23 | }
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| 24 | if (CHECKDIRTY(sb->pixel.dirty, bitID))
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| 25 | {
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| 26 | crStatePixelDiff( &(sb->pixel), bitID, from, to );
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| 27 | }
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| 28 | if (CHECKDIRTY(sb->viewport.dirty, bitID))
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| 29 | {
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| 30 | crStateViewportDiff( &(sb->viewport), bitID, from, to );
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| 31 | }
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| 32 | if (CHECKDIRTY(sb->fog.dirty, bitID))
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| 33 | {
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| 34 | crStateFogDiff( &(sb->fog), bitID, from, to );
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| 35 | }
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| 36 | if (CHECKDIRTY(sb->texture.dirty, bitID))
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| 37 | {
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| 38 | crStateTextureDiff( &(sb->texture), bitID, from, to );
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| 39 | }
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| 40 | if (CHECKDIRTY(sb->lists.dirty, bitID))
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| 41 | {
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| 42 | crStateListsDiff( &(sb->lists), bitID, from, to );
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| 43 | }
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| 44 | if (CHECKDIRTY(sb->buffer.dirty, bitID))
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| 45 | {
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| 46 | crStateBufferDiff( &(sb->buffer), bitID, from, to );
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| 47 | }
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| 48 | #ifdef CR_ARB_vertex_buffer_object
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| 49 | if (CHECKDIRTY(sb->bufferobject.dirty, bitID))
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| 50 | {
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| 51 | crStateBufferObjectDiff( &(sb->bufferobject), bitID, from, to );
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| 52 | }
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| 53 | #endif
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| 54 | if (CHECKDIRTY(sb->client.dirty, bitID))
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| 55 | {
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| 56 | crStateClientDiff(&(sb->client), bitID, from, to );
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| 57 | }
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| 58 | if (CHECKDIRTY(sb->hint.dirty, bitID))
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| 59 | {
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| 60 | crStateHintDiff( &(sb->hint), bitID, from, to );
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| 61 | }
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| 62 | if (CHECKDIRTY(sb->lighting.dirty, bitID))
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| 63 | {
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| 64 | crStateLightingDiff( &(sb->lighting), bitID, from, to );
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| 65 | }
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| 66 | if (CHECKDIRTY(sb->line.dirty, bitID))
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| 67 | {
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| 68 | crStateLineDiff( &(sb->line), bitID, from, to );
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| 69 | }
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| 70 | if (CHECKDIRTY(sb->occlusion.dirty, bitID))
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| 71 | {
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| 72 | crStateOcclusionDiff( &(sb->occlusion), bitID, from, to );
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| 73 | }
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| 74 | if (CHECKDIRTY(sb->point.dirty, bitID))
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| 75 | {
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| 76 | crStatePointDiff( &(sb->point), bitID, from, to );
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| 77 | }
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| 78 | if (CHECKDIRTY(sb->polygon.dirty, bitID))
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| 79 | {
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| 80 | crStatePolygonDiff( &(sb->polygon), bitID, from, to );
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| 81 | }
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| 82 | if (CHECKDIRTY(sb->program.dirty, bitID))
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| 83 | {
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| 84 | crStateProgramDiff( &(sb->program), bitID, from, to );
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| 85 | }
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| 86 | if (CHECKDIRTY(sb->stencil.dirty, bitID))
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| 87 | {
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| 88 | crStateStencilDiff( &(sb->stencil), bitID, from, to );
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| 89 | }
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| 90 | if (CHECKDIRTY(sb->eval.dirty, bitID))
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| 91 | {
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| 92 | crStateEvaluatorDiff( &(sb->eval), bitID, from, to );
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| 93 | }
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| 94 | #ifdef CR_ARB_imaging
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| 95 | if (CHECKDIRTY(sb->imaging.dirty, bitID))
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| 96 | {
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| 97 | crStateImagingDiff( &(sb->imaging), bitID, from, to );
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| 98 | }
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| 99 | #endif
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| 100 | #if 0
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| 101 | if (CHECKDIRTY(sb->selection.dirty, bitID))
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| 102 | {
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| 103 | crStateSelectionDiff( &(sb->selection), bitID, from, to );
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| 104 | }
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| 105 | #endif
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| 106 | #ifdef CR_NV_register_combiners
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| 107 | if (CHECKDIRTY(sb->regcombiner.dirty, bitID) && to->extensions.NV_register_combiners)
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| 108 | {
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| 109 | crStateRegCombinerDiff( &(sb->regcombiner), bitID, from, to );
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| 110 | }
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| 111 | #endif
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| 112 | #ifdef CR_ARB_multisample
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| 113 | if (CHECKDIRTY(sb->multisample.dirty, bitID) &&
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| 114 | from->extensions.ARB_multisample)
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| 115 | {
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| 116 | crStateMultisampleDiff( &(sb->multisample), bitID, from, to );
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| 117 | }
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| 118 | #endif
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| 119 | if (CHECKDIRTY(sb->current.dirty, bitID))
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| 120 | {
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| 121 | crStateCurrentDiff( &(sb->current), bitID, from, to );
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| 122 | }
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| 123 | }
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| 124 |
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| 125 | void crStateFreeFBImage(CRContext *to)
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| 126 | {
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| 127 | if (to->buffer.pFrontImg)
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| 128 | {
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| 129 | crFree(to->buffer.pFrontImg);
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| 130 | to->buffer.pFrontImg = NULL;
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| 131 | }
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| 132 | if (to->buffer.pBackImg)
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| 133 | {
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| 134 | crFree(to->buffer.pBackImg);
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| 135 | to->buffer.pBackImg = NULL;
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| 136 | }
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| 137 |
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| 138 | to->buffer.storedWidth = 0;
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| 139 | to->buffer.storedHeight = 0;
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| 140 | }
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| 141 |
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| 142 | int crStateAcquireFBImage(CRContext *to)
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| 143 | {
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| 144 | CRBufferState *pBuf = &to->buffer;
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| 145 | CRPixelPackState packing = to->client.pack;
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| 146 | GLint cbData;
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| 147 | void *pFbData, *pBbData;
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| 148 |
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| 149 | crStateFreeFBImage(to);
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| 150 |
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| 151 | if (!to->buffer.width || !to->buffer.height)
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| 152 | return VINF_SUCCESS;
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| 153 |
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| 154 | cbData = crPixelSize(GL_RGBA, GL_UNSIGNED_BYTE) * pBuf->width * pBuf->height;
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| 155 | pFbData = crAlloc(cbData);
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| 156 | if (!pFbData)
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| 157 | return VERR_NO_MEMORY;
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| 158 | pBbData = crAlloc(cbData);
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| 159 | if (!pBbData)
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| 160 | {
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| 161 | crFree(pFbData);
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| 162 | return VERR_NO_MEMORY;
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| 163 | }
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| 164 |
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| 165 | diff_api.PixelStorei(GL_PACK_SKIP_ROWS, 0);
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| 166 | diff_api.PixelStorei(GL_PACK_SKIP_PIXELS, 0);
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| 167 | diff_api.PixelStorei(GL_PACK_ALIGNMENT, 1);
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| 168 | diff_api.PixelStorei(GL_PACK_ROW_LENGTH, 0);
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| 169 | diff_api.PixelStorei(GL_PACK_IMAGE_HEIGHT, 0);
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| 170 | diff_api.PixelStorei(GL_PACK_SKIP_IMAGES, 0);
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| 171 | diff_api.PixelStorei(GL_PACK_SWAP_BYTES, 0);
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| 172 | diff_api.PixelStorei(GL_PACK_LSB_FIRST, 0);
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| 173 |
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| 174 | if (to->framebufferobject.readFB)
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| 175 | {
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| 176 | diff_api.BindFramebufferEXT(GL_READ_FRAMEBUFFER, 0);
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| 177 | }
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| 178 | if (to->bufferobject.packBuffer->hwid>0)
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| 179 | {
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| 180 | diff_api.BindBufferARB(GL_PIXEL_PACK_BUFFER_ARB, 0);
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| 181 | }
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| 182 |
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| 183 | pBuf->storedWidth = pBuf->width;
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| 184 | pBuf->storedHeight = pBuf->height;
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| 185 | diff_api.ReadBuffer(GL_FRONT);
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| 186 | diff_api.ReadPixels(0, 0, pBuf->width, pBuf->height, GL_RGBA, GL_UNSIGNED_BYTE, pFbData);
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| 187 | to->buffer.pFrontImg = pFbData;
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| 188 |
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| 189 | diff_api.ReadBuffer(GL_BACK);
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| 190 | diff_api.ReadPixels(0, 0, pBuf->width, pBuf->height, GL_RGBA, GL_UNSIGNED_BYTE, pBbData);
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| 191 | to->buffer.pBackImg = pBbData;
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| 192 |
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| 193 | if (to->bufferobject.packBuffer->hwid>0)
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| 194 | {
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| 195 | diff_api.BindBufferARB(GL_PIXEL_PACK_BUFFER_ARB, to->bufferobject.packBuffer->hwid);
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| 196 | }
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| 197 | if (to->framebufferobject.readFB)
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| 198 | {
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| 199 | diff_api.BindFramebufferEXT(GL_READ_FRAMEBUFFER, to->framebufferobject.readFB->hwid);
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| 200 | }
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| 201 | diff_api.ReadBuffer(to->framebufferobject.readFB ?
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| 202 | to->framebufferobject.readFB->readbuffer : to->buffer.readBuffer);
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| 203 |
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| 204 | diff_api.PixelStorei(GL_PACK_SKIP_ROWS, packing.skipRows);
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| 205 | diff_api.PixelStorei(GL_PACK_SKIP_PIXELS, packing.skipPixels);
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| 206 | diff_api.PixelStorei(GL_PACK_ALIGNMENT, packing.alignment);
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| 207 | diff_api.PixelStorei(GL_PACK_ROW_LENGTH, packing.rowLength);
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| 208 | diff_api.PixelStorei(GL_PACK_IMAGE_HEIGHT, packing.imageHeight);
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| 209 | diff_api.PixelStorei(GL_PACK_SKIP_IMAGES, packing.skipImages);
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| 210 | diff_api.PixelStorei(GL_PACK_SWAP_BYTES, packing.swapBytes);
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| 211 | diff_api.PixelStorei(GL_PACK_LSB_FIRST, packing.psLSBFirst);
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| 212 | return VINF_SUCCESS;
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| 213 | }
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| 214 |
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| 215 | void crStateApplyFBImage(CRContext *to)
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| 216 | {
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| 217 | if (to->buffer.pFrontImg || to->buffer.pBackImg)
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| 218 | {
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| 219 | CRBufferState *pBuf = &to->buffer;
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| 220 | CRPixelPackState unpack = to->client.unpack;
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| 221 |
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| 222 | diff_api.PixelStorei(GL_UNPACK_SKIP_ROWS, 0);
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| 223 | diff_api.PixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
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| 224 | diff_api.PixelStorei(GL_UNPACK_ALIGNMENT, 1);
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| 225 | diff_api.PixelStorei(GL_UNPACK_ROW_LENGTH, 0);
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| 226 | diff_api.PixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0);
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| 227 | diff_api.PixelStorei(GL_UNPACK_SKIP_IMAGES, 0);
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| 228 | diff_api.PixelStorei(GL_UNPACK_SWAP_BYTES, 0);
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| 229 | diff_api.PixelStorei(GL_UNPACK_LSB_FIRST, 0);
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| 230 |
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| 231 | if (to->framebufferobject.drawFB)
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| 232 | {
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| 233 | diff_api.BindFramebufferEXT(GL_DRAW_FRAMEBUFFER, 0);
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| 234 | }
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| 235 |
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| 236 | if (to->bufferobject.unpackBuffer->hwid>0)
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| 237 | {
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| 238 | diff_api.BindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
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| 239 | }
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| 240 |
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| 241 | diff_api.Disable(GL_ALPHA_TEST);
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| 242 | diff_api.Disable(GL_SCISSOR_TEST);
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| 243 | diff_api.Disable(GL_BLEND);
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| 244 | diff_api.Disable(GL_COLOR_LOGIC_OP);
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| 245 |
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| 246 | if (pBuf->pFrontImg)
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| 247 | {
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| 248 | diff_api.DrawBuffer(GL_FRONT);
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| 249 | diff_api.WindowPos2iARB(0, 0);
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| 250 | diff_api.DrawPixels(pBuf->storedWidth, pBuf->storedHeight, GL_RGBA, GL_UNSIGNED_BYTE, pBuf->pFrontImg);
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| 251 | crDebug("Applied %ix%i fb image", pBuf->storedWidth, pBuf->storedHeight);
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| 252 | crFree(pBuf->pFrontImg);
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| 253 | pBuf->pFrontImg = NULL;
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| 254 | }
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| 255 |
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| 256 | if (pBuf->pBackImg)
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| 257 | {
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| 258 | diff_api.DrawBuffer(GL_BACK);
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| 259 | diff_api.WindowPos2iARB(0, 0);
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| 260 | diff_api.DrawPixels(pBuf->storedWidth, pBuf->storedHeight, GL_RGBA, GL_UNSIGNED_BYTE, pBuf->pBackImg);
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| 261 | crDebug("Applied %ix%i bb image", pBuf->storedWidth, pBuf->storedHeight);
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| 262 | crFree(pBuf->pBackImg);
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| 263 | pBuf->pBackImg = NULL;
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| 264 | }
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| 265 |
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| 266 | diff_api.WindowPos3fvARB(to->current.rasterAttrib[VERT_ATTRIB_POS]);
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| 267 | if (to->bufferobject.unpackBuffer->hwid>0)
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| 268 | {
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| 269 | diff_api.BindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, to->bufferobject.unpackBuffer->hwid);
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| 270 | }
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| 271 | if (to->framebufferobject.drawFB)
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| 272 | {
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| 273 | diff_api.BindFramebufferEXT(GL_DRAW_FRAMEBUFFER, to->framebufferobject.drawFB->hwid);
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| 274 | }
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| 275 | diff_api.DrawBuffer(to->framebufferobject.drawFB ?
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| 276 | to->framebufferobject.drawFB->drawbuffer[0] : to->buffer.drawBuffer);
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| 277 | if (to->buffer.alphaTest)
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| 278 | {
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| 279 | diff_api.Enable(GL_ALPHA_TEST);
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| 280 | }
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| 281 | if (to->viewport.scissorTest)
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| 282 | {
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| 283 | diff_api.Enable(GL_SCISSOR_TEST);
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| 284 | }
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| 285 | if (to->buffer.blend)
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| 286 | {
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| 287 | diff_api.Enable(GL_BLEND);
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| 288 | }
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| 289 | if (to->buffer.logicOp)
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| 290 | {
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| 291 | diff_api.Enable(GL_COLOR_LOGIC_OP);
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| 292 | }
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| 293 |
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| 294 | diff_api.PixelStorei(GL_UNPACK_SKIP_ROWS, unpack.skipRows);
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| 295 | diff_api.PixelStorei(GL_UNPACK_SKIP_PIXELS, unpack.skipPixels);
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| 296 | diff_api.PixelStorei(GL_UNPACK_ALIGNMENT, unpack.alignment);
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| 297 | diff_api.PixelStorei(GL_UNPACK_ROW_LENGTH, unpack.rowLength);
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| 298 | diff_api.PixelStorei(GL_UNPACK_IMAGE_HEIGHT, unpack.imageHeight);
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| 299 | diff_api.PixelStorei(GL_UNPACK_SKIP_IMAGES, unpack.skipImages);
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| 300 | diff_api.PixelStorei(GL_UNPACK_SWAP_BYTES, unpack.swapBytes);
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| 301 | diff_api.PixelStorei(GL_UNPACK_LSB_FIRST, unpack.psLSBFirst);
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| 302 |
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| 303 | diff_api.Finish();
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| 304 | }
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| 305 | }
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| 306 |
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| 307 | void crStateSwitchContext( CRContext *from, CRContext *to )
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| 308 | {
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| 309 | CRbitvalue *bitID = to->bitid;
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| 310 | CRStateBits *sb = GetCurrentBits();
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| 311 |
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| 312 | if (CHECKDIRTY(sb->attrib.dirty, bitID))
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| 313 | {
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| 314 | crStateAttribSwitch(&(sb->attrib), bitID, from, to );
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| 315 | }
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| 316 | if (CHECKDIRTY(sb->transform.dirty, bitID))
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| 317 | {
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| 318 | crStateTransformSwitch( &(sb->transform), bitID, from, to );
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| 319 | }
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| 320 | if (CHECKDIRTY(sb->pixel.dirty, bitID))
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| 321 | {
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| 322 | crStatePixelSwitch(&(sb->pixel), bitID, from, to );
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| 323 | }
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| 324 | if (CHECKDIRTY(sb->viewport.dirty, bitID))
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| 325 | {
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| 326 | crStateViewportSwitch(&(sb->viewport), bitID, from, to );
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| 327 | }
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| 328 | if (CHECKDIRTY(sb->fog.dirty, bitID))
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| 329 | {
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| 330 | crStateFogSwitch(&(sb->fog), bitID, from, to );
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| 331 | }
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| 332 | if (CHECKDIRTY(sb->texture.dirty, bitID))
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| 333 | {
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| 334 | crStateTextureSwitch( &(sb->texture), bitID, from, to );
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| 335 | }
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| 336 | if (CHECKDIRTY(sb->lists.dirty, bitID))
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| 337 | {
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| 338 | crStateListsSwitch(&(sb->lists), bitID, from, to );
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| 339 | }
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| 340 | if (CHECKDIRTY(sb->buffer.dirty, bitID))
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| 341 | {
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| 342 | crStateBufferSwitch( &(sb->buffer), bitID, from, to );
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| 343 | }
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| 344 | #ifdef CR_ARB_vertex_buffer_object
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| 345 | if (CHECKDIRTY(sb->bufferobject.dirty, bitID))
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| 346 | {
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| 347 | crStateBufferObjectSwitch( &(sb->bufferobject), bitID, from, to );
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| 348 | }
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| 349 | #endif
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| 350 | if (CHECKDIRTY(sb->client.dirty, bitID))
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| 351 | {
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| 352 | crStateClientSwitch( &(sb->client), bitID, from, to );
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| 353 | }
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| 354 | #if 0
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| 355 | if (CHECKDIRTY(sb->hint.dirty, bitID))
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| 356 | {
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| 357 | crStateHintSwitch( &(sb->hint), bitID, from, to );
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| 358 | }
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| 359 | #endif
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| 360 | if (CHECKDIRTY(sb->lighting.dirty, bitID))
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| 361 | {
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| 362 | crStateLightingSwitch( &(sb->lighting), bitID, from, to );
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| 363 | }
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| 364 | if (CHECKDIRTY(sb->occlusion.dirty, bitID))
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| 365 | {
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| 366 | crStateOcclusionSwitch( &(sb->occlusion), bitID, from, to );
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| 367 | }
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| 368 | if (CHECKDIRTY(sb->line.dirty, bitID))
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| 369 | {
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| 370 | crStateLineSwitch( &(sb->line), bitID, from, to );
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| 371 | }
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| 372 | if (CHECKDIRTY(sb->point.dirty, bitID))
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| 373 | {
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| 374 | crStatePointSwitch( &(sb->point), bitID, from, to );
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| 375 | }
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| 376 | if (CHECKDIRTY(sb->polygon.dirty, bitID))
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|---|
| 377 | {
|
|---|
| 378 | crStatePolygonSwitch( &(sb->polygon), bitID, from, to );
|
|---|
| 379 | }
|
|---|
| 380 | if (CHECKDIRTY(sb->program.dirty, bitID))
|
|---|
| 381 | {
|
|---|
| 382 | crStateProgramSwitch( &(sb->program), bitID, from, to );
|
|---|
| 383 | }
|
|---|
| 384 | if (CHECKDIRTY(sb->stencil.dirty, bitID))
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|---|
| 385 | {
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|---|
| 386 | crStateStencilSwitch( &(sb->stencil), bitID, from, to );
|
|---|
| 387 | }
|
|---|
| 388 | if (CHECKDIRTY(sb->eval.dirty, bitID))
|
|---|
| 389 | {
|
|---|
| 390 | crStateEvaluatorSwitch( &(sb->eval), bitID, from, to );
|
|---|
| 391 | }
|
|---|
| 392 | #ifdef CR_ARB_imaging
|
|---|
| 393 | if (CHECKDIRTY(sb->imaging.dirty, bitID))
|
|---|
| 394 | {
|
|---|
| 395 | crStateImagingSwitch( &(sb->imaging), bitID, from, to );
|
|---|
| 396 | }
|
|---|
| 397 | #endif
|
|---|
| 398 | #if 0
|
|---|
| 399 | if (CHECKDIRTY(sb->selection.dirty, bitID))
|
|---|
| 400 | {
|
|---|
| 401 | crStateSelectionSwitch( &(sb->selection), bitID, from, to );
|
|---|
| 402 | }
|
|---|
| 403 | #endif
|
|---|
| 404 | #ifdef CR_NV_register_combiners
|
|---|
| 405 | if (CHECKDIRTY(sb->regcombiner.dirty, bitID) && to->extensions.NV_register_combiners)
|
|---|
| 406 | {
|
|---|
| 407 | crStateRegCombinerSwitch( &(sb->regcombiner), bitID, from, to );
|
|---|
| 408 | }
|
|---|
| 409 | #endif
|
|---|
| 410 | #ifdef CR_ARB_multisample
|
|---|
| 411 | if (CHECKDIRTY(sb->multisample.dirty, bitID))
|
|---|
| 412 | {
|
|---|
| 413 | crStateMultisampleSwitch( &(sb->multisample), bitID, from, to );
|
|---|
| 414 | }
|
|---|
| 415 | #endif
|
|---|
| 416 | #ifdef CR_ARB_multisample
|
|---|
| 417 | if (CHECKDIRTY(sb->multisample.dirty, bitID))
|
|---|
| 418 | {
|
|---|
| 419 | crStateMultisampleSwitch(&(sb->multisample), bitID, from, to );
|
|---|
| 420 | }
|
|---|
| 421 | #endif
|
|---|
| 422 | #ifdef CR_EXT_framebuffer_object
|
|---|
| 423 | /*Note, this should go after crStateTextureSwitch*/
|
|---|
| 424 | crStateFramebufferObjectSwitch(from, to);
|
|---|
| 425 | #endif
|
|---|
| 426 | #ifdef CR_OPENGL_VERSION_2_0
|
|---|
| 427 | crStateGLSLSwitch(from, to);
|
|---|
| 428 | #endif
|
|---|
| 429 | if (CHECKDIRTY(sb->current.dirty, bitID))
|
|---|
| 430 | {
|
|---|
| 431 | crStateCurrentSwitch( &(sb->current), bitID, from, to );
|
|---|
| 432 | }
|
|---|
| 433 |
|
|---|
| 434 | #ifdef WINDOWS
|
|---|
| 435 | crStateApplyFBImage(to);
|
|---|
| 436 | #endif
|
|---|
| 437 | }
|
|---|
| 438 |
|
|---|
| 439 | void crStateSyncHWErrorState(CRContext *ctx)
|
|---|
| 440 | {
|
|---|
| 441 | GLenum err;
|
|---|
| 442 | while ((err = diff_api.GetError()) != GL_NO_ERROR)
|
|---|
| 443 | {
|
|---|
| 444 | if (ctx->error != GL_NO_ERROR)
|
|---|
| 445 | ctx->error = err;
|
|---|
| 446 | }
|
|---|
| 447 | }
|
|---|
| 448 |
|
|---|
| 449 | void crStateSwitchPrepare(CRContext *toCtx, CRContext *fromCtx, GLuint idDrawFBO, GLuint idReadFBO)
|
|---|
| 450 | {
|
|---|
| 451 | if (!fromCtx)
|
|---|
| 452 | return;
|
|---|
| 453 |
|
|---|
| 454 | if (g_bVBoxEnableDiffOnMakeCurrent && toCtx && toCtx != fromCtx)
|
|---|
| 455 | crStateSyncHWErrorState(fromCtx);
|
|---|
| 456 |
|
|---|
| 457 | #ifdef CR_EXT_framebuffer_object
|
|---|
| 458 | crStateFramebufferObjectDisableHW(fromCtx, idDrawFBO, idReadFBO);
|
|---|
| 459 | #endif
|
|---|
| 460 | }
|
|---|
| 461 |
|
|---|
| 462 | void crStateSwitchPostprocess(CRContext *toCtx, CRContext *fromCtx, GLuint idDrawFBO, GLuint idReadFBO)
|
|---|
| 463 | {
|
|---|
| 464 | if (!toCtx)
|
|---|
| 465 | return;
|
|---|
| 466 |
|
|---|
| 467 | if (g_bVBoxEnableDiffOnMakeCurrent && fromCtx && toCtx != fromCtx)
|
|---|
| 468 | {
|
|---|
| 469 | GLenum err;
|
|---|
| 470 | while ((err = diff_api.GetError()) != GL_NO_ERROR)
|
|---|
| 471 | {
|
|---|
| 472 | crWarning("gl error (0x%x) after context switch, ignoring..", err);
|
|---|
| 473 | }
|
|---|
| 474 | }
|
|---|
| 475 | #ifdef CR_EXT_framebuffer_object
|
|---|
| 476 | crStateFramebufferObjectReenableHW(fromCtx, toCtx, idDrawFBO, idReadFBO);
|
|---|
| 477 | #endif
|
|---|
| 478 | }
|
|---|
