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fix depth/stencil readback if coordinates are larger than 1023 (https://bugs.freedesktop.org/show_bug.cgi?id=2010). Should now work up to 2047, which is the current limit for 3d rendering.

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This commit is contained in:
Roland Scheidegger 2004-12-08 03:07:34 +00:00
parent 3b65cab455
commit e1b4fec71c
1 changed files with 2 additions and 2 deletions
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4
src/mesa/drivers/dri/r200/r200_span.c
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@ -161,7 +161,7 @@ static GLuint r200_mba_z32( r200ContextPtr rmesa,
GLint x, GLint y )
{
GLuint pitch = rmesa->r200Screen->frontPitch;
GLuint b = ((y & 0x3FF) >> 4) * ((pitch & 0xFFF) >> 5) + ((x & 0x3FF) >> 5);
GLuint b = ((y & 0x7FF) >> 4) * ((pitch & 0xFFF) >> 5) + ((x & 0x7FF) >> 5);
GLuint a =
(BIT(x,0) << 2) |
(BIT(y,0) << 3) |
@ -180,7 +180,7 @@ static GLuint r200_mba_z32( r200ContextPtr rmesa,
static GLuint r200_mba_z16( r200ContextPtr rmesa, GLint x, GLint y )
{
GLuint pitch = rmesa->r200Screen->frontPitch;
GLuint b = ((y & 0x3FF) >> 4) * ((pitch & 0xFFF) >> 6) + ((x & 0x3FF) >> 6);
GLuint b = ((y & 0x7FF) >> 4) * ((pitch & 0xFFF) >> 6) + ((x & 0x7FF) >> 6);
GLuint a =
(BIT(x,0) << 1) |
(BIT(y,0) << 2) |