--- /dev/null
+/*
+ * Copyright 2015 Axel Davy <axel.davy@ens.fr>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE. */
+
+#ifndef _NINE_LIMITS_H_
+#define _NINE_LIMITS_H_
+
+#include "assert.h"
+#include "d3d9types.h"
+
+// state can be any value
+#define NINE_STATE_NO_LIMIT 0
+// value is clamped if below min or max
+#define NINE_STATE_CLAMP 1
+// boolean: 0 -> false; any other value -> true
+#define NINE_STATE_BOOL 2
+// a mask is applied on the value
+#define NINE_STATE_MASK 3
+// if outside a range, state value is changed to a default value
+#define NINE_STATE_RANGE_DEF_VAL 4
+
+struct nine_state_behaviour {
+ unsigned state_value_behaviour;
+ union {
+ struct {
+ unsigned min;
+ unsigned max;
+ } clamp;
+ unsigned mask;
+ struct {
+ unsigned min;
+ unsigned max;
+ unsigned default_val;
+ } range_def_val;
+ } u;
+};
+
+#define __NO_LIMIT_RS(o) \
+ [D3DRS_##o] = {NINE_STATE_NO_LIMIT}
+
+#define __CLAMP_RS(o, m, M) \
+ [D3DRS_##o] = {NINE_STATE_CLAMP, {.clamp = {m, M}}}
+
+#define __BOOLEAN_RS(o) \
+ [D3DRS_##o] = {NINE_STATE_BOOL}
+
+#define __MASK_RS(o, m) \
+ [D3DRS_##o] = {NINE_STATE_MASK, {.mask = m}}
+
+#define __RANGE_DEF_VAL_RS(o, m, M, d) \
+ [D3DRS_##o] = {NINE_STATE_RANGE_DEF_VAL, {.range_def_val = {m, M, d}}}
+
+#define __TO_DETERMINE_RS(o, m, M) \
+ [D3DRS_##o] = {NINE_STATE_NO_LIMIT}
+
+static const struct nine_state_behaviour
+render_state_limits_table[D3DRS_BLENDOPALPHA + 1] = {
+ __TO_DETERMINE_RS(ZENABLE, 0, 3),
+ __TO_DETERMINE_RS(FILLMODE, 1, 3),
+ __CLAMP_RS(SHADEMODE, 1, 3),
+ __BOOLEAN_RS(ZWRITEENABLE),
+ __BOOLEAN_RS(ALPHATESTENABLE),
+ __BOOLEAN_RS(LASTPIXEL),
+ __RANGE_DEF_VAL_RS(SRCBLEND, 1, 17, D3DBLEND_ZERO),
+ __RANGE_DEF_VAL_RS(DESTBLEND, 1, 17, D3DBLEND_ZERO),
+ __CLAMP_RS(CULLMODE, 1, 3),
+ __CLAMP_RS(ZFUNC, 1, 8),
+ __MASK_RS(ALPHAREF, 0x000000FF),
+ __CLAMP_RS(ALPHAFUNC, 1, 8),
+ __BOOLEAN_RS(DITHERENABLE),
+ __BOOLEAN_RS(ALPHABLENDENABLE),
+ __BOOLEAN_RS(FOGENABLE),
+ __BOOLEAN_RS(SPECULARENABLE),
+ __NO_LIMIT_RS(FOGCOLOR),
+ __MASK_RS(FOGTABLEMODE, 0x00000007),
+ __NO_LIMIT_RS(FOGSTART), /* a bit more complex than that, lets ignore */
+ __NO_LIMIT_RS(FOGEND),
+ __NO_LIMIT_RS(FOGDENSITY), /* actually should be between 0.0 and 1.0 */
+ __BOOLEAN_RS(RANGEFOGENABLE),
+ __BOOLEAN_RS(STENCILENABLE),
+ __CLAMP_RS(STENCILFAIL, 1, 8),
+ __CLAMP_RS(STENCILZFAIL, 1, 8),
+ __CLAMP_RS(STENCILPASS, 1, 8),
+ __CLAMP_RS(STENCILFUNC, 1, 8),
+ __NO_LIMIT_RS(STENCILREF),
+ __NO_LIMIT_RS(STENCILMASK),
+ __NO_LIMIT_RS(STENCILWRITEMASK),
+ __NO_LIMIT_RS(TEXTUREFACTOR),
+ __TO_DETERMINE_RS(WRAP0, 0, 15),
+ __TO_DETERMINE_RS(WRAP1, 0, 15),
+ __TO_DETERMINE_RS(WRAP2, 0, 15),
+ __TO_DETERMINE_RS(WRAP3, 0, 15),
+ __TO_DETERMINE_RS(WRAP4, 0, 15),
+ __TO_DETERMINE_RS(WRAP5, 0, 15),
+ __TO_DETERMINE_RS(WRAP6, 0, 15),
+ __TO_DETERMINE_RS(WRAP7, 0, 15),
+ __BOOLEAN_RS(CLIPPING),
+ __BOOLEAN_RS(LIGHTING),
+ __NO_LIMIT_RS(AMBIENT),
+ __MASK_RS(FOGVERTEXMODE, 0x00000007),
+ __BOOLEAN_RS(COLORVERTEX),
+ __BOOLEAN_RS(LOCALVIEWER),
+ __BOOLEAN_RS(NORMALIZENORMALS),
+ __TO_DETERMINE_RS(DIFFUSEMATERIALSOURCE, 0, 2),
+ __TO_DETERMINE_RS(SPECULARMATERIALSOURCE, 0, 2),
+ __TO_DETERMINE_RS(AMBIENTMATERIALSOURCE, 0, 2),
+ __TO_DETERMINE_RS(EMISSIVEMATERIALSOURCE, 0, 2),
+ __TO_DETERMINE_RS(VERTEXBLEND, 0, 256), /* values between 4 and 254 -both included- are forbidden too */
+ __NO_LIMIT_RS(CLIPPLANEENABLE), /* expected check seems complex */
+ __TO_DETERMINE_RS(POINTSIZE, 0, 0xFFFFFFFF),
+ __TO_DETERMINE_RS(POINTSIZE_MIN, 0, 0x7FFFFFFF), /* float >= 0.0 */
+ __BOOLEAN_RS(POINTSPRITEENABLE),
+ __BOOLEAN_RS(POINTSCALEENABLE),
+ __TO_DETERMINE_RS(POINTSCALE_A, 0, 0x7FFFFFFF), /* float >= 0.0 */
+ __TO_DETERMINE_RS(POINTSCALE_B, 0, 0x7FFFFFFF), /* float >= 0.0 */
+ __TO_DETERMINE_RS(POINTSCALE_C, 0, 0x7FFFFFFF), /* float >= 0.0 */
+ __BOOLEAN_RS(MULTISAMPLEANTIALIAS),
+ __NO_LIMIT_RS(MULTISAMPLEMASK),
+ __TO_DETERMINE_RS(PATCHEDGESTYLE, 0, 1),
+ __TO_DETERMINE_RS(DEBUGMONITORTOKEN, 0, 1),
+ __TO_DETERMINE_RS(POINTSIZE_MAX, 0, 0x7FFFFFFF), /* check more complex than that */
+ __BOOLEAN_RS(INDEXEDVERTEXBLENDENABLE),
+ __TO_DETERMINE_RS(COLORWRITEENABLE, 0, 15),
+ __NO_LIMIT_RS(TWEENFACTOR),
+ __CLAMP_RS(BLENDOP, 1, 5),
+ __TO_DETERMINE_RS(POSITIONDEGREE, 1, 5), /* can actually be only 1 or 5 */
+ __TO_DETERMINE_RS(NORMALDEGREE, 1, 2),
+ __BOOLEAN_RS(SCISSORTESTENABLE),
+ __NO_LIMIT_RS(SLOPESCALEDEPTHBIAS),
+ __BOOLEAN_RS(ANTIALIASEDLINEENABLE),
+ __NO_LIMIT_RS(MINTESSELLATIONLEVEL),
+ __NO_LIMIT_RS(MAXTESSELLATIONLEVEL),
+ __NO_LIMIT_RS(ADAPTIVETESS_X),
+ __NO_LIMIT_RS(ADAPTIVETESS_Y),
+ __NO_LIMIT_RS(ADAPTIVETESS_Z),
+ __NO_LIMIT_RS(ADAPTIVETESS_W),
+ __BOOLEAN_RS(ENABLEADAPTIVETESSELLATION),
+ __BOOLEAN_RS(TWOSIDEDSTENCILMODE),
+ __CLAMP_RS(CCW_STENCILFAIL, 1, 8),
+ __CLAMP_RS(CCW_STENCILZFAIL, 1, 8),
+ __CLAMP_RS(CCW_STENCILPASS, 1, 8),
+ __CLAMP_RS(CCW_STENCILFUNC, 1, 8),
+ __TO_DETERMINE_RS(COLORWRITEENABLE1, 0, 15),
+ __TO_DETERMINE_RS(COLORWRITEENABLE2, 0, 15),
+ __TO_DETERMINE_RS(COLORWRITEENABLE3, 0, 15),
+ __NO_LIMIT_RS(BLENDFACTOR),
+ __BOOLEAN_RS(SRGBWRITEENABLE),
+ __NO_LIMIT_RS(DEPTHBIAS),
+ __TO_DETERMINE_RS(WRAP8, 0, 15),
+ __TO_DETERMINE_RS(WRAP9, 0, 15),
+ __TO_DETERMINE_RS(WRAP10, 0, 15),
+ __TO_DETERMINE_RS(WRAP11, 0, 15),
+ __TO_DETERMINE_RS(WRAP12, 0, 15),
+ __TO_DETERMINE_RS(WRAP13, 0, 15),
+ __TO_DETERMINE_RS(WRAP14, 0, 15),
+ __TO_DETERMINE_RS(WRAP15, 0, 15),
+ __BOOLEAN_RS(SEPARATEALPHABLENDENABLE),
+ __RANGE_DEF_VAL_RS(SRCBLENDALPHA, 1, 17, D3DBLEND_ZERO),
+ __RANGE_DEF_VAL_RS(DESTBLENDALPHA, 1, 17, D3DBLEND_ZERO),
+ __CLAMP_RS(BLENDOPALPHA, 1, 5)
+};
+
+static DWORD inline
+nine_fix_render_state_value(D3DRENDERSTATETYPE State,
+ DWORD Value)
+{
+ struct nine_state_behaviour behaviour = render_state_limits_table[State];
+
+ switch (behaviour.state_value_behaviour) {
+ case NINE_STATE_NO_LIMIT:
+ break;
+ case NINE_STATE_CLAMP:
+ if (Value < behaviour.u.clamp.min)
+ Value = behaviour.u.clamp.min;
+ else if (Value > behaviour.u.clamp.max)
+ Value = behaviour.u.clamp.max;
+ break;
+ case NINE_STATE_BOOL:
+ Value = Value ? 1 : 0;
+ break;
+ case NINE_STATE_MASK:
+ Value = Value & behaviour.u.mask;
+ break;
+ case NINE_STATE_RANGE_DEF_VAL:
+ if (Value < behaviour.u.range_def_val.min || Value > behaviour.u.range_def_val.max)
+ Value = behaviour.u.range_def_val.default_val;
+ break;
+ }
+
+ return Value;
+}
+
+#endif /* _NINE_HELPERS_H_ */