diff options
| -rw-r--r-- | src/mesa/drivers/dri/i915/i915_context.h | 14 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i915/i915_fragprog.c | 83 |
2 files changed, 71 insertions, 26 deletions
diff --git a/src/mesa/drivers/dri/i915/i915_context.h b/src/mesa/drivers/dri/i915/i915_context.h index fa58ecb8165..d8f592bcb9f 100644 --- a/src/mesa/drivers/dri/i915/i915_context.h +++ b/src/mesa/drivers/dri/i915/i915_context.h @@ -115,6 +115,8 @@ enum { I915_RASTER_RULES_SETUP_SIZE, }; +#define I915_TEX_UNITS 8 + #define I915_MAX_CONSTANT 32 #define I915_CONSTANT_SIZE (2+(4*I915_MAX_CONSTANT)) @@ -194,7 +196,8 @@ struct i915_fragment_program /* Helpers for i915_fragprog.c: */ - GLuint wpos_tex; + uint8_t texcoord_mapping[I915_TEX_UNITS]; + uint8_t wpos_tex; bool depth_written; struct @@ -205,15 +208,6 @@ struct i915_fragment_program GLuint nr_params; }; - - - - - - -#define I915_TEX_UNITS 8 - - struct i915_hw_state { GLuint Ctx[I915_CTX_SETUP_SIZE]; diff --git a/src/mesa/drivers/dri/i915/i915_fragprog.c b/src/mesa/drivers/dri/i915/i915_fragprog.c index 03c32e56d82..1a5943c87fb 100644 --- a/src/mesa/drivers/dri/i915/i915_fragprog.c +++ b/src/mesa/drivers/dri/i915/i915_fragprog.c @@ -72,6 +72,22 @@ static const GLfloat cos_constants[4] = { 1.0, -1.0 / (6 * 5 * 4 * 3 * 2 * 1) }; +/* texcoord_mapping[unit] = index | TEXCOORD_{TEX,VAR} */ +#define TEXCOORD_TEX (0<<7) +#define TEXCOORD_VAR (1<<7) + +static unsigned +get_texcoord_mapping(struct i915_fragment_program *p, uint8_t texcoord) +{ + for (unsigned i = 0; i < p->ctx->Const.MaxTextureCoordUnits; i++) { + if (p->texcoord_mapping[i] == texcoord) + return i; + } + + /* blah */ + return p->ctx->Const.MaxTextureCoordUnits - 1; +} + /** * Retrieve a ureg for the given source register. Will emit * constants, apply swizzling and negation as needed. @@ -82,6 +98,7 @@ src_vector(struct i915_fragment_program *p, const struct gl_fragment_program *program) { GLuint src; + unsigned unit; switch (source->File) { @@ -119,8 +136,10 @@ src_vector(struct i915_fragment_program *p, case VARYING_SLOT_TEX5: case VARYING_SLOT_TEX6: case VARYING_SLOT_TEX7: + unit = get_texcoord_mapping(p, (source->Index - + VARYING_SLOT_TEX0) | TEXCOORD_TEX); src = i915_emit_decl(p, REG_TYPE_T, - T_TEX0 + (source->Index - VARYING_SLOT_TEX0), + T_TEX0 + unit, D0_CHANNEL_ALL); break; @@ -132,8 +151,10 @@ src_vector(struct i915_fragment_program *p, case VARYING_SLOT_VAR0 + 5: case VARYING_SLOT_VAR0 + 6: case VARYING_SLOT_VAR0 + 7: + unit = get_texcoord_mapping(p, (source->Index - + VARYING_SLOT_VAR0) | TEXCOORD_VAR); src = i915_emit_decl(p, REG_TYPE_T, - T_TEX0 + (source->Index - VARYING_SLOT_VAR0), + T_TEX0 + unit, D0_CHANNEL_ALL); break; @@ -1176,27 +1197,54 @@ fixup_depth_write(struct i915_fragment_program *p) } } +static void +check_texcoord_mapping(struct i915_fragment_program *p) +{ + GLbitfield64 inputs = p->FragProg.Base.InputsRead; + unsigned unit = 0; + + for (unsigned i = 0; i < p->ctx->Const.MaxTextureCoordUnits; i++) { + if (inputs & VARYING_BIT_TEX(i)) { + if (unit >= p->ctx->Const.MaxTextureCoordUnits) { + unit++; + break; + } + p->texcoord_mapping[unit++] = i | TEXCOORD_TEX; + } + if (inputs & VARYING_BIT_VAR(i)) { + if (unit >= p->ctx->Const.MaxTextureCoordUnits) { + unit++; + break; + } + p->texcoord_mapping[unit++] = i | TEXCOORD_VAR; + } + } + + if (unit > p->ctx->Const.MaxTextureCoordUnits) + i915_program_error(p, "Too many texcoord units"); +} static void check_wpos(struct i915_fragment_program *p) { GLbitfield64 inputs = p->FragProg.Base.InputsRead; GLint i; + unsigned unit = 0; p->wpos_tex = -1; + if ((inputs & VARYING_BIT_POS) == 0) + return; + for (i = 0; i < p->ctx->Const.MaxTextureCoordUnits; i++) { - if (inputs & (VARYING_BIT_TEX(i) | VARYING_BIT_VAR(i))) - continue; - else if (inputs & VARYING_BIT_POS) { - p->wpos_tex = i; - inputs &= ~VARYING_BIT_POS; - } + unit += !!(inputs & VARYING_BIT_TEX(i)); + unit += !!(inputs & VARYING_BIT_VAR(i)); } - if (inputs & VARYING_BIT_POS) { + if (unit < p->ctx->Const.MaxTextureCoordUnits) + p->wpos_tex = unit; + else i915_program_error(p, "No free texcoord for wpos value"); - } } @@ -1212,6 +1260,7 @@ translate_program(struct i915_fragment_program *p) } i915_init_program(i915, p); + check_texcoord_mapping(p); check_wpos(p); upload_program(p); fixup_depth_write(p); @@ -1420,22 +1469,24 @@ i915ValidateFragmentProgram(struct i915_context *i915) for (i = 0; i < p->ctx->Const.MaxTextureCoordUnits; i++) { if (inputsRead & VARYING_BIT_TEX(i)) { + int unit = get_texcoord_mapping(p, i | TEXCOORD_TEX); int sz = VB->AttribPtr[_TNL_ATTRIB_TEX0 + i]->size; - s2 &= ~S2_TEXCOORD_FMT(i, S2_TEXCOORD_FMT0_MASK); - s2 |= S2_TEXCOORD_FMT(i, SZ_TO_HW(sz)); + s2 &= ~S2_TEXCOORD_FMT(unit, S2_TEXCOORD_FMT0_MASK); + s2 |= S2_TEXCOORD_FMT(unit, SZ_TO_HW(sz)); EMIT_ATTR(_TNL_ATTRIB_TEX0 + i, EMIT_SZ(sz), 0, sz * 4); } - else if (inputsRead & VARYING_BIT_VAR(i)) { + if (inputsRead & VARYING_BIT_VAR(i)) { + int unit = get_texcoord_mapping(p, i | TEXCOORD_VAR); int sz = VB->AttribPtr[_TNL_ATTRIB_GENERIC0 + i]->size; - s2 &= ~S2_TEXCOORD_FMT(i, S2_TEXCOORD_FMT0_MASK); - s2 |= S2_TEXCOORD_FMT(i, SZ_TO_HW(sz)); + s2 &= ~S2_TEXCOORD_FMT(unit, S2_TEXCOORD_FMT0_MASK); + s2 |= S2_TEXCOORD_FMT(unit, SZ_TO_HW(sz)); EMIT_ATTR(_TNL_ATTRIB_GENERIC0 + i, EMIT_SZ(sz), 0, sz * 4); } - else if (i == p->wpos_tex) { + if (i == p->wpos_tex) { int wpos_size = 4 * sizeof(float); /* If WPOS is required, duplicate the XYZ position data in an * unused texture coordinate: |