As spotted by Christoph Bumiller, these branches are now never
reached. Also, at least in the case of WINED3DSIO_TEXM3x3SPEC and
WINED3DSIO_TEXM3x3VSPEC the old code was not quite correct, since we
can lookup rather than guess the texture type these days.
- Implement if, else, endif, rep, endrep, break
- Implement ifc, breakc, using undocumented comparison bits in the instruction token
- Fix bug in main loop processing of codes with no dst token
- Fix bug in GLSL output modifier processing of codes with no dst token
- Fix bug in loop implementation (src1 contains the integer data, src0 is aL)
- Add versioning for all the instructions above, and remove
GLSL_REQUIRED thing, which is useless and should be removed from all
opcodes in general.
- move DEF, DEFI, DEFB handling into the register counting pass
- keep track of defined constants as a linked list (because there's a
few of them)
- apply immediate constants after global constants in the constant
loading function
- both types of constants now get loaded with array notation in the
shader (into the same array)
- currently half the shader selection code (GLSL vs ARB) is in
fillGLcaps. The parts that check for software shaders are in
GetDeviceCaps. That placement, will work, but is definitely not optimal.
FillGLcaps should detect support - it should not make decision as to
what's used, because that's not what the purpose of the function is.
GetDeviceCaps should report support as it has already been selected.
Instead, select shader mode in its own function, called in the
appropriate places.
- unifying pixel and vertex shaders into a single selection is a
mistake. A software vertex shader can be coupled with a hardware arb or
glsl pixel shader, or no shader at all. Split them back into two and add
a SHADER_NONE variant.
- drawprim is doing support checks for ARB_PROGRAM, and making shader
decisions based on that - that's wrong, support has already been
checked, and decided upon, and shaders can be implemented via software,
ARB_PROGRAm or GLSL, so that support check isn't valid.
- Store the shader selected mode into the shader itself. Different types
of shaders can be combined, so this is an improvement. In fact, storing
the mode into the settings globally is a mistake as well - it should be
done per device, since different cards have different capabilities.
This fixes the translations for a few instructions in GLSL and allows
Cubemap sampling in pixel shaders < 2.0. It makes some of the
lighting on textures in Half Life 2 look better, including some of the
water effects. It's not perfect yet, but much closer now.
- Implement D3DSIO_DP2ADD, D3DSIO_TEXKILL, D3DSIO_TEXM3X3PAD
- Partially implement D3DSIO_TEXBEM, D3DSIO_TEXM3X3VSPEC (as much as
they are implemented in ARB_fragment_program at least).
- Stop copying the SHADER_PARSE_STATE struct in each ARB shader
routine - use a pointer instead.
- Separate the declaration phase of the shader string generator into
the arb and glsl specific files.
- Add declarations and recognition for application-sent constant
integers and booleans (locally defined ones will follow).
- Standardize capitilization of pixel/vertex specific variable names.
- Implemented: D3DSIO_SGN, LOOP, ENDLOOP, LOGP, LIT, DST, SINCOS
- Process instruction-based modifiers (function existed, it just
wasn't being called)
- Add loop checking to register maps.
- Renamed "sng" to "sgn" for D3DSIO_SGN - it's not handled anywhere
except for GLSL, so won't matter.
There are a total of 17 instructions without a destination token. Of
those 9 have num_params != 0, which means that we will not process any
of them correctly, because we assume the first token (if present) is a
destination token.
Those are basically all the flow control instructions, which we plan to
support very soon. They have source tokens, and no destination. Add a
flag that marks them up to the ins table. Use this flag in the trace
pass, and generation pass.
H. Verbeet