| 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 |
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| 11 | void crStateDiffContext( CRContext *from, CRContext *to )
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| 12 | {
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| 13 | CRbitvalue *bitID = from->bitid;
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| 14 | CRStateBits *sb = GetCurrentBits();
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| 15 |
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| 16 | /*crDebug( "Diffing two contexts!" ); */
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| 17 |
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| 18 | if (CHECKDIRTY(sb->transform.dirty, bitID))
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| 19 | {
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| 20 | crStateTransformDiff( &(sb->transform), bitID, from, to );
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| 21 | }
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| 22 | if (CHECKDIRTY(sb->pixel.dirty, bitID))
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| 23 | {
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| 24 | crStatePixelDiff( &(sb->pixel), bitID, from, to );
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| 25 | }
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| 26 | if (CHECKDIRTY(sb->viewport.dirty, bitID))
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| 27 | {
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| 28 | crStateViewportDiff( &(sb->viewport), bitID, from, to );
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| 29 | }
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| 30 | if (CHECKDIRTY(sb->fog.dirty, bitID))
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| 31 | {
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| 32 | crStateFogDiff( &(sb->fog), bitID, from, to );
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| 33 | }
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| 34 | if (CHECKDIRTY(sb->texture.dirty, bitID))
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| 35 | {
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| 36 | crStateTextureDiff( &(sb->texture), bitID, from, to );
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| 37 | }
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| 38 | if (CHECKDIRTY(sb->lists.dirty, bitID))
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| 39 | {
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| 40 | crStateListsDiff( &(sb->lists), bitID, from, to );
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| 41 | }
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| 42 | if (CHECKDIRTY(sb->buffer.dirty, bitID))
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| 43 | {
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| 44 | crStateBufferDiff( &(sb->buffer), bitID, from, to );
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| 45 | }
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| 46 | #ifdef CR_ARB_vertex_buffer_object
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| 47 | if (CHECKDIRTY(sb->bufferobject.dirty, bitID))
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| 48 | {
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| 49 | crStateBufferObjectDiff( &(sb->bufferobject), bitID, from, to );
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| 50 | }
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| 51 | #endif
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| 52 | if (CHECKDIRTY(sb->client.dirty, bitID))
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| 53 | {
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| 54 | crStateClientDiff(&(sb->client), bitID, from, to );
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| 55 | }
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| 56 | if (CHECKDIRTY(sb->hint.dirty, bitID))
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| 57 | {
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| 58 | crStateHintDiff( &(sb->hint), bitID, from, to );
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| 59 | }
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| 60 | if (CHECKDIRTY(sb->lighting.dirty, bitID))
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| 61 | {
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| 62 | crStateLightingDiff( &(sb->lighting), bitID, from, to );
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| 63 | }
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| 64 | if (CHECKDIRTY(sb->line.dirty, bitID))
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| 65 | {
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| 66 | crStateLineDiff( &(sb->line), bitID, from, to );
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| 67 | }
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| 68 | if (CHECKDIRTY(sb->occlusion.dirty, bitID))
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| 69 | {
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| 70 | crStateOcclusionDiff( &(sb->occlusion), bitID, from, to );
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| 71 | }
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| 72 | if (CHECKDIRTY(sb->point.dirty, bitID))
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| 73 | {
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| 74 | crStatePointDiff( &(sb->point), bitID, from, to );
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| 75 | }
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| 76 | if (CHECKDIRTY(sb->polygon.dirty, bitID))
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| 77 | {
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| 78 | crStatePolygonDiff( &(sb->polygon), bitID, from, to );
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| 79 | }
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| 80 | if (CHECKDIRTY(sb->program.dirty, bitID))
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| 81 | {
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| 82 | crStateProgramDiff( &(sb->program), bitID, from, to );
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| 83 | }
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| 84 | if (CHECKDIRTY(sb->stencil.dirty, bitID))
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| 85 | {
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| 86 | crStateStencilDiff( &(sb->stencil), bitID, from, to );
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| 87 | }
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| 88 | if (CHECKDIRTY(sb->eval.dirty, bitID))
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| 89 | {
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| 90 | crStateEvaluatorDiff( &(sb->eval), bitID, from, to );
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| 91 | }
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| 92 | #ifdef CR_ARB_imaging
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| 93 | if (CHECKDIRTY(sb->imaging.dirty, bitID))
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| 94 | {
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| 95 | crStateImagingDiff( &(sb->imaging), bitID, from, to );
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| 96 | }
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| 97 | #endif
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| 98 | #if 0
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| 99 | if (CHECKDIRTY(sb->selection.dirty, bitID))
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| 100 | {
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| 101 | crStateSelectionDiff( &(sb->selection), bitID, from, to );
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| 102 | }
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| 103 | #endif
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| 104 | #ifdef CR_NV_register_combiners
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| 105 | if (CHECKDIRTY(sb->regcombiner.dirty, bitID) && to->extensions.NV_register_combiners)
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| 106 | {
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| 107 | crStateRegCombinerDiff( &(sb->regcombiner), bitID, from, to );
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| 108 | }
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| 109 | #endif
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| 110 | #ifdef CR_ARB_multisample
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| 111 | if (CHECKDIRTY(sb->multisample.dirty, bitID) &&
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| 112 | from->extensions.ARB_multisample)
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| 113 | {
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| 114 | crStateMultisampleDiff( &(sb->multisample), bitID, from, to );
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| 115 | }
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| 116 | #endif
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| 117 | if (CHECKDIRTY(sb->current.dirty, bitID))
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| 118 | {
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| 119 | crStateCurrentDiff( &(sb->current), bitID, from, to );
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| 120 | }
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| 121 | }
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| 122 |
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| 123 | void crStateApplyFBImage(CRContext *to)
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| 124 | {
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| 125 | if (to->pImage)
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| 126 | {
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| 127 | CRViewportState *pVP = &to->viewport;
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| 128 | CRPixelPackState unpack = to->client.unpack;
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| 129 |
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| 130 | diff_api.PixelStorei(GL_UNPACK_SKIP_ROWS, 0);
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| 131 | diff_api.PixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
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| 132 | diff_api.PixelStorei(GL_UNPACK_ALIGNMENT, 1);
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| 133 | diff_api.PixelStorei(GL_UNPACK_ROW_LENGTH, 0);
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| 134 | diff_api.PixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0);
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| 135 | diff_api.PixelStorei(GL_UNPACK_SKIP_IMAGES, 0);
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| 136 | diff_api.PixelStorei(GL_UNPACK_SWAP_BYTES, 0);
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| 137 | diff_api.PixelStorei(GL_UNPACK_LSB_FIRST, 0);
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| 138 |
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| 139 | diff_api.DrawBuffer(GL_FRONT);
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| 140 | diff_api.WindowPos2iARB(0, 0);
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| 141 | diff_api.DrawPixels(pVP->viewportW, pVP->viewportH, GL_RGBA, GL_UNSIGNED_BYTE, to->pImage);
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| 142 |
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| 143 | diff_api.WindowPos3fvARB(to->current.rasterAttrib[VERT_ATTRIB_POS]);
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| 144 | diff_api.DrawBuffer(to->framebufferobject.drawFB ?
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| 145 | to->framebufferobject.drawFB->drawbuffer[0] : to->buffer.drawBuffer);
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| 146 | diff_api.PixelStorei(GL_UNPACK_SKIP_ROWS, unpack.skipRows);
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| 147 | diff_api.PixelStorei(GL_UNPACK_SKIP_PIXELS, unpack.skipPixels);
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| 148 | diff_api.PixelStorei(GL_UNPACK_ALIGNMENT, unpack.alignment);
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| 149 | diff_api.PixelStorei(GL_UNPACK_ROW_LENGTH, unpack.rowLength);
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| 150 | diff_api.PixelStorei(GL_UNPACK_IMAGE_HEIGHT, unpack.imageHeight);
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| 151 | diff_api.PixelStorei(GL_UNPACK_SKIP_IMAGES, unpack.skipImages);
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| 152 | diff_api.PixelStorei(GL_UNPACK_SWAP_BYTES, unpack.swapBytes);
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| 153 | diff_api.PixelStorei(GL_UNPACK_LSB_FIRST, unpack.psLSBFirst);
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| 154 |
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| 155 | diff_api.Finish();
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| 156 |
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| 157 | crDebug("Applied %ix%i fb image", pVP->viewportW, pVP->viewportH);
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| 158 |
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| 159 | crFree(to->pImage);
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| 160 | to->pImage = NULL;
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| 161 | }
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| 162 | }
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| 163 |
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| 164 | void crStateSwitchContext( CRContext *from, CRContext *to )
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| 165 | {
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| 166 | CRbitvalue *bitID = to->bitid;
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| 167 | CRStateBits *sb = GetCurrentBits();
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| 168 |
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| 169 | if (CHECKDIRTY(sb->attrib.dirty, bitID))
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| 170 | {
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| 171 | crStateAttribSwitch(&(sb->attrib), bitID, from, to );
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| 172 | }
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| 173 | if (CHECKDIRTY(sb->transform.dirty, bitID))
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| 174 | {
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| 175 | crStateTransformSwitch( &(sb->transform), bitID, from, to );
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| 176 | }
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| 177 | if (CHECKDIRTY(sb->pixel.dirty, bitID))
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| 178 | {
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| 179 | crStatePixelSwitch(&(sb->pixel), bitID, from, to );
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| 180 | }
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| 181 | if (CHECKDIRTY(sb->viewport.dirty, bitID))
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| 182 | {
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| 183 | crStateViewportSwitch(&(sb->viewport), bitID, from, to );
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| 184 | }
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| 185 | if (CHECKDIRTY(sb->fog.dirty, bitID))
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| 186 | {
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| 187 | crStateFogSwitch(&(sb->fog), bitID, from, to );
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| 188 | }
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| 189 | if (CHECKDIRTY(sb->texture.dirty, bitID))
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| 190 | {
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| 191 | crStateTextureSwitch( &(sb->texture), bitID, from, to );
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| 192 | }
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| 193 | if (CHECKDIRTY(sb->lists.dirty, bitID))
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| 194 | {
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| 195 | crStateListsSwitch(&(sb->lists), bitID, from, to );
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| 196 | }
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| 197 | if (CHECKDIRTY(sb->buffer.dirty, bitID))
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| 198 | {
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| 199 | crStateBufferSwitch( &(sb->buffer), bitID, from, to );
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| 200 | }
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| 201 | #ifdef CR_ARB_vertex_buffer_object
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| 202 | if (CHECKDIRTY(sb->bufferobject.dirty, bitID))
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| 203 | {
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| 204 | crStateBufferObjectSwitch( &(sb->bufferobject), bitID, from, to );
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| 205 | }
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| 206 | #endif
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| 207 | if (CHECKDIRTY(sb->client.dirty, bitID))
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| 208 | {
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| 209 | crStateClientSwitch( &(sb->client), bitID, from, to );
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| 210 | }
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| 211 | #if 0
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| 212 | if (CHECKDIRTY(sb->hint.dirty, bitID))
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| 213 | {
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| 214 | crStateHintSwitch( &(sb->hint), bitID, from, to );
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| 215 | }
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| 216 | #endif
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| 217 | if (CHECKDIRTY(sb->lighting.dirty, bitID))
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| 218 | {
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| 219 | crStateLightingSwitch( &(sb->lighting), bitID, from, to );
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| 220 | }
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| 221 | if (CHECKDIRTY(sb->occlusion.dirty, bitID))
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| 222 | {
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| 223 | crStateOcclusionSwitch( &(sb->occlusion), bitID, from, to );
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| 224 | }
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| 225 | if (CHECKDIRTY(sb->line.dirty, bitID))
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| 226 | {
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| 227 | crStateLineSwitch( &(sb->line), bitID, from, to );
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| 228 | }
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| 229 | if (CHECKDIRTY(sb->point.dirty, bitID))
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| 230 | {
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| 231 | crStatePointSwitch( &(sb->point), bitID, from, to );
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| 232 | }
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| 233 | if (CHECKDIRTY(sb->polygon.dirty, bitID))
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| 234 | {
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| 235 | crStatePolygonSwitch( &(sb->polygon), bitID, from, to );
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| 236 | }
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| 237 | if (CHECKDIRTY(sb->program.dirty, bitID))
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| 238 | {
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| 239 | crStateProgramSwitch( &(sb->program), bitID, from, to );
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| 240 | }
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| 241 | if (CHECKDIRTY(sb->stencil.dirty, bitID))
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| 242 | {
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| 243 | crStateStencilSwitch( &(sb->stencil), bitID, from, to );
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| 244 | }
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| 245 | if (CHECKDIRTY(sb->eval.dirty, bitID))
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| 246 | {
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| 247 | crStateEvaluatorSwitch( &(sb->eval), bitID, from, to );
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| 248 | }
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| 249 | #ifdef CR_ARB_imaging
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| 250 | if (CHECKDIRTY(sb->imaging.dirty, bitID))
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| 251 | {
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| 252 | crStateImagingSwitch( &(sb->imaging), bitID, from, to );
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| 253 | }
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| 254 | #endif
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| 255 | #if 0
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| 256 | if (CHECKDIRTY(sb->selection.dirty, bitID))
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| 257 | {
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| 258 | crStateSelectionSwitch( &(sb->selection), bitID, from, to );
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| 259 | }
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| 260 | #endif
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| 261 | #ifdef CR_NV_register_combiners
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| 262 | if (CHECKDIRTY(sb->regcombiner.dirty, bitID) && to->extensions.NV_register_combiners)
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| 263 | {
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| 264 | crStateRegCombinerSwitch( &(sb->regcombiner), bitID, from, to );
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| 265 | }
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| 266 | #endif
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| 267 | #ifdef CR_ARB_multisample
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| 268 | if (CHECKDIRTY(sb->multisample.dirty, bitID))
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| 269 | {
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| 270 | crStateMultisampleSwitch( &(sb->multisample), bitID, from, to );
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| 271 | }
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| 272 | #endif
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| 273 | #ifdef CR_ARB_multisample
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| 274 | if (CHECKDIRTY(sb->multisample.dirty, bitID))
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| 275 | {
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| 276 | crStateMultisampleSwitch(&(sb->multisample), bitID, from, to );
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| 277 | }
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| 278 | #endif
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| 279 | #ifdef CR_EXT_framebuffer_object
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| 280 | /*Note, this should go after crStateTextureSwitch*/
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| 281 | crStateFramebufferObjectSwitch(from, to);
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| 282 | #endif
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| 283 | #ifdef CR_OPENGL_VERSION_2_0
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| 284 | crStateGLSLSwitch(from, to);
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| 285 | #endif
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| 286 | if (CHECKDIRTY(sb->current.dirty, bitID))
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| 287 | {
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| 288 | crStateCurrentSwitch( &(sb->current), bitID, from, to );
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| 289 | }
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| 290 |
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| 291 | #ifdef WINDOWS
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| 292 | crStateApplyFBImage(to);
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| 293 | #endif
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| 294 | }
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