| 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 "unpacker.h"
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| 8 | #include "cr_error.h"
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| 9 |
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| 10 | #include "state/cr_bufferobject.h"
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| 11 |
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| 12 | void crUnpackDrawPixels( void )
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| 13 | {
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| 14 | GLsizei width = READ_DATA( sizeof( int ) + 0, GLsizei );
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| 15 | GLsizei height = READ_DATA( sizeof( int ) + 4, GLsizei );
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| 16 | GLenum format = READ_DATA( sizeof( int ) + 8, GLenum );
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| 17 | GLenum type = READ_DATA( sizeof( int ) + 12, GLenum );
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| 18 | GLint noimagedata = READ_DATA( sizeof( int ) + 16, GLint );
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| 19 | GLvoid *pixels;
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| 20 |
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| 21 | if (noimagedata && !crStateIsBufferBound(GL_PIXEL_UNPACK_BUFFER_ARB))
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| 22 | return;
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| 23 |
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| 24 | if (noimagedata)
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| 25 | pixels = (void*) (uintptr_t) READ_DATA( sizeof( int ) + 20, GLint);
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| 26 | else
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| 27 | pixels = DATA_POINTER( sizeof( int ) + 24, GLvoid );
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| 28 |
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| 29 | cr_unpackDispatch.PixelStorei( GL_UNPACK_ROW_LENGTH, 0 );
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| 30 | cr_unpackDispatch.PixelStorei( GL_UNPACK_SKIP_PIXELS, 0 );
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| 31 | cr_unpackDispatch.PixelStorei( GL_UNPACK_SKIP_ROWS, 0 );
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| 32 | cr_unpackDispatch.PixelStorei( GL_UNPACK_ALIGNMENT, 1 );
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| 33 |
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| 34 | cr_unpackDispatch.DrawPixels( width, height, format, type, pixels );
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| 35 |
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| 36 | INCR_VAR_PTR( );
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| 37 | }
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| 38 |
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| 39 | void crUnpackBitmap( void )
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| 40 | {
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| 41 | GLsizei width = READ_DATA( sizeof( int ) + 0, GLsizei );
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| 42 | GLsizei height = READ_DATA( sizeof( int ) + 4, GLsizei );
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| 43 | GLfloat xorig = READ_DATA( sizeof( int ) + 8, GLfloat );
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| 44 | GLfloat yorig = READ_DATA( sizeof( int ) + 12, GLfloat );
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| 45 | GLfloat xmove = READ_DATA( sizeof( int ) + 16, GLfloat );
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| 46 | GLfloat ymove = READ_DATA( sizeof( int ) + 20, GLfloat );
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| 47 | GLuint noimagedata = READ_DATA( sizeof( int ) + 24, GLuint );
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| 48 | GLubyte *bitmap;
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| 49 |
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| 50 | if (noimagedata && !crStateIsBufferBound(GL_PIXEL_UNPACK_BUFFER_ARB))
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| 51 | return;
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| 52 |
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| 53 | if (noimagedata)
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| 54 | bitmap = (void*) (uintptr_t) READ_DATA(sizeof(int) + 28, GLint);
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| 55 | else
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| 56 | bitmap = DATA_POINTER( sizeof(int) + 32, GLubyte );
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| 57 |
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| 58 | cr_unpackDispatch.PixelStorei( GL_UNPACK_ROW_LENGTH, 0 );
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| 59 | cr_unpackDispatch.PixelStorei( GL_UNPACK_SKIP_PIXELS, 0 );
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| 60 | cr_unpackDispatch.PixelStorei( GL_UNPACK_SKIP_ROWS, 0 );
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| 61 | cr_unpackDispatch.PixelStorei( GL_UNPACK_ALIGNMENT, 1 );
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| 62 |
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| 63 | cr_unpackDispatch.Bitmap( width, height, xorig, yorig, xmove, ymove, bitmap );
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| 64 |
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| 65 | INCR_VAR_PTR( );
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| 66 | }
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| 67 |
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| 68 | /*
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| 69 | * ZPixCR - compressed DrawPixels
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| 70 | */
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| 71 | void crUnpackExtendZPixCR( void )
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| 72 | {
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| 73 | GLsizei width = READ_DATA( 8, GLsizei );
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| 74 | GLsizei height = READ_DATA( 12, GLsizei );
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| 75 | GLenum format = READ_DATA( 16, GLenum );
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| 76 | GLenum type = READ_DATA( 20, GLenum );
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| 77 | GLenum ztype = READ_DATA( 24, GLenum );
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| 78 | GLint zparm = READ_DATA( 28, GLuint );
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| 79 | GLint length = READ_DATA( 32, GLint );
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| 80 | GLvoid *pixels = DATA_POINTER( 36, GLvoid );
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| 81 |
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| 82 | /*XXX JAG
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| 83 | crDebug("UnpackZPixCR: w = %d, h = %d, len = %d",
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| 84 | width, height, length);
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| 85 | */
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| 86 | cr_unpackDispatch.PixelStorei( GL_UNPACK_ROW_LENGTH, 0 );
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| 87 | cr_unpackDispatch.PixelStorei( GL_UNPACK_SKIP_PIXELS, 0 );
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| 88 | cr_unpackDispatch.PixelStorei( GL_UNPACK_SKIP_ROWS, 0 );
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| 89 | cr_unpackDispatch.PixelStorei( GL_UNPACK_ALIGNMENT, 1 );
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| 90 |
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| 91 | cr_unpackDispatch.ZPixCR( width, height, format, type, ztype, zparm, length, pixels );
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| 92 |
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| 93 | /* Don't call INCR_VAR_PTR(); - it's done in crUnpackExtend() */
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| 94 | }
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