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fixes for the mga driver

This commit is contained in:
Keith Whitwell 1999-09-05 19:59:33 +00:00
parent 324beb95f3
commit 9b7c843671
1 changed files with 14 additions and 1 deletions
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15
src/mesa/main/matrix.c
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@ -1,4 +1,4 @@
/* $Id: matrix.c,v 1.1 1999/08/19 00:55:41 jtg Exp $ */
/* $Id: matrix.c,v 1.2 1999/09/05 19:59:33 keithw Exp $ */
/*
* Mesa 3-D graphics library
@ -1311,6 +1311,11 @@ void gl_Viewport( GLcontext *ctx,
ctx->Viewport.WindowMap.m[MAT_TX] = ctx->Viewport.WindowMap.m[MAT_SX] + x;
ctx->Viewport.WindowMap.m[MAT_SY] = (GLfloat) height / 2.0F;
ctx->Viewport.WindowMap.m[MAT_TY] = ctx->Viewport.WindowMap.m[MAT_SY] + y;
ctx->Viewport.WindowMap.m[MAT_SZ] = 0.5 * DEPTH_SCALE;
ctx->Viewport.WindowMap.m[MAT_TZ] = 0.5 * DEPTH_SCALE;
ctx->Viewport.WindowMap.flags = MAT_FLAG_GENERAL_SCALE|MAT_FLAG_TRANSLATION;
ctx->Viewport.WindowMap.type = MATRIX_3D_NO_ROT;
ctx->ModelProjectWinMatrixUptodate = GL_FALSE;
ctx->NewState |= NEW_VIEWPORT;
@ -1400,6 +1405,14 @@ void gl_matrix_dtr( GLmatrix *m )
}
}
void gl_matrix_set_identity( GLmatrix *m )
{
MEMCPY( m->m, Identity, sizeof(Identity));
m->type = MATRIX_IDENTITY;
m->flags = MAT_DIRTY_DEPENDENTS;
}
void gl_matrix_alloc_inv( GLmatrix *m )
{
if (m->inv == 0) {