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This is a step towards making the linker code usable as our uniform
setup, instead of having it wedged into ir_to_mesa.cpp.

This was in place for uniform handling, but nothing actually needs the
value now, since presence in a parameter list indicates that the
uniform was used as far as the linker was concerned.

3 more piglits, cool.

Guard against potential use after free.

It had no impact on correctness, though.

Reported by Vinson Lee.

Signed-off-by: Brian Paul <brianp@vmware.com>

Create EGLImages from DRM buffer handles.

This begins a process of repurposing this file.  The existing usage is
as a header file for some software blit fallbacks, which should be
moved to a more appropriately named header.

UNDEFINED_VERTEX_ID is used by draw_pipe_vbuf to decide whether a vertex
has been emitted or not.  The non-pipeline pathes do not use it (they
tell the frontend the max vertex count when prepare() is called).

Update all drivers to use draw_set_index_buffer,
draw_set_mapped_index_buffer, and draw_vbo.  Remove
draw_set_mapped_element_buffer and draw_set_mapped_element_buffer_range.

That is, implement draw_vbo directly.  As a result,
svga_swtnl_draw_range_elements is also replaced by svga_swtnl_draw_vbo.

This commit should not have any functional change.

This commit adds draw_set_index_buffer, draw_set_mapped_index_buffer,
and draw_vbo.  The idea behind the new functions is that an index buffer
should be a state.

draw_arrays and draw_set_mapped_element_buffer are preserved, but the
latter will be removed soon.

Remove nvfx_context.h.
Include p_compiler.h for INLINE symbol.

Fixes nvfx_context.h -> nvfx_screen.h -> nvfx_context.h include recursion.

Include stdint.h for uint8_t symbol.
Include p_compiler.h for INLINE symbol.

Include r600_emit.h for r600EmitShader and r600EmitShaderConsts symbols.

Fixes the following GCC warnings.
evergreen_fragprog.c: In function 'evergreenSetupFragmentProgram':
evergreen_fragprog.c:521: warning: implicit declaration of function 'r600EmitShader'
evergreen_fragprog.c:778: warning: implicit declaration of function 'r600EmitShaderConsts'

Include r600_emit.h for r600EmitShader and r600EmitShaderConsts symbols.

Fixes the following GCC warnings.
evergreen_vertprog.c:614: warning: implicit declaration of function 'r600EmitShader'
evergreen_vertprog.c:701: warning: implicit declaration of function 'r600EmitShaderConsts'

Include p_format.h for enum pipe_format symbol.

Include p_compiler.h for boolean symbol.

The variable loops would be used uninitialized if it ever processed a
RC_OPCODE_ENDLOOP case first.

This patch initalizes the loops variable to NULL and adds an assert at
the RC_OPCODE_ENDLOOP case that loops isn't NULL.

Silence the following GCC warning.
r3xx_vertprog.c: In function 'translate_vertex_program':
r3xx_vertprog.c:469: warning: 'loops' may be used uninitialized in this function

This is a follow-on patch to commit
574ba4b5.

Fixes r300g SCons build.

Is this hackish or is this the correct way to use point_quad_rasterization?
Copied from nvfx.

Fixes the following GCC warning.
evergreen_render.c: In function 'evergreenTryDrawPrims':
evergreen_render.c:836: error: implicit declaration of function 'evergreenSetupFragmentProgram'