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This was never fully fleshed out and hasn't been used.
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Fixed point is only used in swrast and sw-based drivers.
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of -I flags.
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Instead of separate fog/specular/texcoord/varying code, just treat all of
them as generic attributes. Simplifies the point/line/triangle functions.
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Fragment texcoords and varying code is now unified in the point/line/triangle
rasterization code. In the future, merge color, fog, etc. attribs.
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Compute the region after we've locked (and possibly updated the buffer's size).
Same thing is needed for ctx->Driver.Clear().
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debug) it's only used there.
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- use macros to access and modify render inputs bit-field;
- un-alias generic vertex attributes for ARB vertex calls;
- use MAX_VERTEX_PROGRAM_ATTRIBS (NV code) or MAX_VERTEX_ATTRIBS
(ARB code) in place of VERT_ATTRIB_MAX;
- define VERT_ATTRIB_GENERIC0..15 for un-aliased vertex
attributes for ARB_vertex_shader;
- fix generic attribute index range check in arbprogparse.c;
- interface GLSL varyings between vertex and fragment shader;
- use 64-bit optimised bitset (bitset.h) for render inputs;
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Now, OLD_RENDERBUFFER marks code that needs to eventually be removed when
all the drivers are updated to no longer need the SetBuffer() function.
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Main driver impacts:
- new code for creating the Mesa GLframebuffer
- new span/pixel read/write code
Some drivers not yet updated/tested.
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In x11 driver, map/unmap PBO as needed in DrawPixels functions.
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Only available with Xlib driver for now.
Assorted clean-ups related to Draw/ReadBuffer().
Renamed FRONT_LEFT_BIT -> DD_FRONT_LEFT_BIT, etc.
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Note: extension may not be finalized yet - subject to change!
Note: implementation not fully suitable for h/w implementation yet.
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Changed SWvertex's index field to GLfloat and fix a few other bits.
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Implemented remaining fragment program instructions.
Initial changes to implement fragment program texture sampling.
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Re-org of some GL_NV_vertex_program code.
Replace MAX_TEXTURE_UNITS with MAX_TEXTURE_COORD_UNITS and MAX_TEXTURE_IMAGE_UNITS.
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Replaced ctx->Color._DriverDrawBuffer with swrast->CurrentBuffer.
Replaced ctx->Pixel._DriverReadBuffer with ctx->Pixel._ReadSrcMask.
swrast->Driver.SetBuffer() takes FRONT/BACK_LEFT/RIGHT_BIT values now.
Added tokens and code for GL_AUX buffers, for completeness.
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data are broken out into a new struct span_arrays which is allocated
per-context (to avoid huge stack allocations - a problem on Windows).
This lets us use span.redStep instead of span->redStep (for example) to
hopefully get slightly better performance in the triangle functions.
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indicates the read AND draw color buffer for all software rasterization.
Lots of related clean-ups. See RELNOTES-4.1 for details.
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on the stack frame in the point/line/triangle functions. (Klaus Niederkrueger)
This should solve the performance problem Karl found on Windows.
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type, width, interp mask and array mask.
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instead of passing a GLcontext* to ResizeBuffers(), pass a GLframebuffer*.
The idea is that a window can be resized without it being bound to a rendering
context. This makes for a nice clean-up in the XFree86 server-side GLX code.
Renamed ctx->Driver.ResizeBuffersMESA() to ctx->Driver.ResizeBuffers().
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ditch the pb (pixel buffer) code.
Converted point drawing, bitmaps and aa lines to use new span functions.
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Updated comments, fixed indentation, etc.
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Removed last of span.filled* flags and Klaus's macros.
More simplification of triangle functions.
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_mesa_rasterize_span() is gone, replaced by new _mesa_write_textured_span().
Removed some unneeded triangle functions - more simplification possible.
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struct sw_span is used throughout span/fragment processing.
This is leading to less code and more chances for optimization.
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