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radeon: Fix scissors for dri1.

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DRI1 has to set scissors in framebuffer coordinates.
This commit is contained in:
Pauli Nieminen 2009-08-28 20:41:15 +03:00
parent dbe58d7f9f
commit 4f644e58d4
1 changed files with 21 additions and 4 deletions
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25
src/mesa/drivers/dri/radeon/radeon_common.c
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@ -234,9 +234,13 @@ void radeonUpdateScissor( GLcontext *ctx )
GLint x = ctx->Scissor.X, y = ctx->Scissor.Y;
GLsizei w = ctx->Scissor.Width, h = ctx->Scissor.Height;
int x1, y1, x2, y2;
int min_x, min_y, max_x, max_y;
if (!ctx->DrawBuffer)
return;
min_x = min_y = 0;
max_x = ctx->DrawBuffer->Width - 1;
max_y = ctx->DrawBuffer->Height - 1;
if ( !ctx->DrawBuffer->Name ) {
x1 = x;
@ -250,11 +254,24 @@ void radeonUpdateScissor( GLcontext *ctx )
y2 = y + h - 1;
}
if (!rmesa->radeonScreen->kernel_mm) {
/* Fix scissors for dri 1 */
rmesa->state.scissor.rect.x1 = CLAMP(x1, 0, ctx->DrawBuffer->Width - 1);
rmesa->state.scissor.rect.y1 = CLAMP(y1, 0, ctx->DrawBuffer->Height - 1);
rmesa->state.scissor.rect.x2 = CLAMP(x2, 0, ctx->DrawBuffer->Width - 1);
rmesa->state.scissor.rect.y2 = CLAMP(y2, 0, ctx->DrawBuffer->Height - 1);
__DRIdrawablePrivate *dPriv = radeon_get_drawable(rmesa);
x1 += dPriv->x;
x2 += dPriv->x + 1;
min_x += dPriv->x;
max_x += dPriv->x + 1;
y1 += dPriv->y;
y2 += dPriv->y + 1;
min_y += dPriv->y;
max_y += dPriv->y + 1;
}
rmesa->state.scissor.rect.x1 = CLAMP(x1, min_x, max_x);
rmesa->state.scissor.rect.y1 = CLAMP(y1, min_y, max_y);
rmesa->state.scissor.rect.x2 = CLAMP(x2, min_x, max_x);
rmesa->state.scissor.rect.y2 = CLAMP(y2, min_y, max_y);
radeonRecalcScissorRects( rmesa );
}