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fixed errors in feedback for glDraw/CopyPixels and glBitmap

This commit is contained in:
Brian Paul 2001-12-13 19:12:42 +00:00
parent 59235bd5da
commit d9331ae71e
1 changed files with 23 additions and 38 deletions
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61
src/mesa/main/drawpix.c
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@ -1,8 +1,8 @@
/* $Id: drawpix.c,v 1.56 2001/06/26 21:15:35 brianp Exp $ */
/* $Id: drawpix.c,v 1.57 2001/12/13 19:12:42 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.5
* Version: 4.1
*
* Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
*
@ -72,20 +72,13 @@ _mesa_DrawPixels( GLsizei width, GLsizei height,
}
else if (ctx->RenderMode==GL_FEEDBACK) {
if (ctx->Current.RasterPosValid) {
GLfloat texcoord[4], invq;
FLUSH_CURRENT(ctx, 0);
invq = 1.0F / ctx->Current.Texcoord[0][3];
texcoord[0] = ctx->Current.Texcoord[0][0] * invq;
texcoord[1] = ctx->Current.Texcoord[0][1] * invq;
texcoord[2] = ctx->Current.Texcoord[0][2] * invq;
texcoord[3] = ctx->Current.Texcoord[0][3];
FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_DRAW_PIXEL_TOKEN );
_mesa_feedback_vertex( ctx,
ctx->Current.RasterPos,
ctx->Current.Color,
ctx->Current.Index,
texcoord );
ctx->Current.RasterColor,
ctx->Current.RasterIndex,
ctx->Current.RasterTexCoord );
}
}
else if (ctx->RenderMode==GL_SELECT) {
@ -152,13 +145,15 @@ _mesa_CopyPixels( GLint srcx, GLint srcy, GLsizei width, GLsizei height,
type );
}
else if (ctx->RenderMode == GL_FEEDBACK) {
FLUSH_CURRENT( ctx, 0 );
FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_COPY_PIXEL_TOKEN );
_mesa_feedback_vertex( ctx,
ctx->Current.RasterPos,
ctx->Current.Color,
ctx->Current.Index,
ctx->Current.Texcoord[0] );
if (ctx->Current.RasterPosValid) {
FLUSH_CURRENT(ctx, 0);
FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_COPY_PIXEL_TOKEN );
_mesa_feedback_vertex( ctx,
ctx->Current.RasterPos,
ctx->Current.RasterColor,
ctx->Current.RasterIndex,
ctx->Current.RasterTexCoord );
}
}
else if (ctx->RenderMode == GL_SELECT) {
_mesa_update_hitflag( ctx, ctx->Current.RasterPos[2] );
@ -175,7 +170,6 @@ _mesa_Bitmap( GLsizei width, GLsizei height,
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
/* Error checking */
if (width < 0 || height < 0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glBitmap" );
@ -201,24 +195,15 @@ _mesa_Bitmap( GLsizei width, GLsizei height,
}
}
else if (ctx->RenderMode==GL_FEEDBACK) {
GLfloat color[4], texcoord[4], invq;
color[0] = ctx->Current.RasterColor[0];
color[1] = ctx->Current.RasterColor[1];
color[2] = ctx->Current.RasterColor[2];
color[3] = ctx->Current.RasterColor[3];
if (ctx->Current.Texcoord[0][3] == 0.0)
invq = 1.0F;
else
invq = 1.0F / ctx->Current.RasterTexCoord[3];
texcoord[0] = ctx->Current.RasterTexCoord[0] * invq;
texcoord[1] = ctx->Current.RasterTexCoord[1] * invq;
texcoord[2] = ctx->Current.RasterTexCoord[2] * invq;
texcoord[3] = ctx->Current.RasterTexCoord[3];
FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_BITMAP_TOKEN );
_mesa_feedback_vertex( ctx,
ctx->Current.RasterPos,
color, ctx->Current.RasterIndex, texcoord );
if (ctx->Current.RasterPosValid) {
FLUSH_CURRENT(ctx, 0);
FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_BITMAP_TOKEN );
_mesa_feedback_vertex( ctx,
ctx->Current.RasterPos,
ctx->Current.RasterColor,
ctx->Current.RasterIndex,
ctx->Current.RasterTexCoord );
}
}
else if (ctx->RenderMode==GL_SELECT) {
/* Bitmaps don't generate selection hits. See appendix B of 1.1 spec. */