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mesa: Update gl_scissor_attrib to support ARB_viewport_array

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Update Mesa and drivers to access updated gl_scissor_attrib.
Now have an enable bitfield and array of gl_scissor_rects.
Drivers have been updated to the new scissor enable state
attribute (gl_context.scissor.EnableFlags) but still treat it
as a single boolean which is okay as mesa will only use
bit 0 when communicating with a driver that does not support
ARB_viewport_array.

v2 (idr): Rebase fixes.

v3 (idr): Small code formatting fix suggsted by Ken.

Signed-off-by: Courtney Goeltzenleuchter <courtney@LunarG.com>
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Courtney Goeltzenleuchter
2013-11-13 14:02:12 -07:00
committed by Ian Romanick
parent 1f59e963b4
commit a9c73fb778
24 changed files with 140 additions and 94 deletions
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src/mesa/state_tracker/st_cb_drawpixels.c
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@@ -713,7 +713,7 @@ draw_textured_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z,
rasterizer.half_pixel_center = 1;
rasterizer.bottom_edge_rule = 1;
rasterizer.depth_clip = !ctx->Transform.DepthClamp;
rasterizer.scissor = ctx->Scissor.Enabled;
rasterizer.scissor = ctx->Scissor.EnableFlags;
cso_set_rasterizer(cso, &rasterizer);
}