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-rw-r--r--src/mesa/drivers/dri/i915/i915_context.h14
-rw-r--r--src/mesa/drivers/dri/i915/i915_fragprog.c83
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:
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 09:20:21 +0000