diff options
| author | Zack Rusin <zackr@vmware.com> | 2009-12-14 17:11:46 -0500 |
|---|---|---|
| committer | Zack Rusin <zackr@vmware.com> | 2009-12-25 05:52:16 -0500 |
| commit | 89d8577fb3036547ef0b47498cc8dc5c77f886e0 (patch) | |
| tree | 9356cc45b0cdaad4f979b0d328ad0562686a66e8 /src/gallium/auxiliary/tgsi/tgsi_exec.c | |
| parent | 57cce7a409724a261c6dae6c979496a630167742 (diff) | |
gallium: add geometry shader support to gallium
Diffstat (limited to 'src/gallium/auxiliary/tgsi/tgsi_exec.c')
| -rw-r--r-- | src/gallium/auxiliary/tgsi/tgsi_exec.c | 45 |
1 files changed, 41 insertions, 4 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c index 123117cb0a..e2f28783cc 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_exec.c +++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c @@ -372,6 +372,7 @@ tgsi_exec_machine_create( void ) memset(mach, 0, sizeof(*mach)); mach->Addrs = &mach->Temps[TGSI_EXEC_TEMP_ADDR]; + mach->MaxGeometryShaderOutputs = TGSI_MAX_TOTAL_VERTICES; mach->Predicates = &mach->Temps[TGSI_EXEC_TEMP_P0]; /* Setup constants. */ @@ -1468,6 +1469,15 @@ store_dest( index = mach->Temps[TEMP_OUTPUT_I].xyzw[TEMP_OUTPUT_C].u[0] + reg->Register.Index; dst = &mach->Outputs[offset + index].xyzw[chan_index]; +#if 0 + if (TGSI_PROCESSOR_GEOMETRY == mach->Processor) { + fprintf(stderr, "STORING OUT[%d] mask(%d), = (", index, execmask); + for (i = 0; i < QUAD_SIZE; i++) + if (execmask & (1 << i)) + fprintf(stderr, "%f, ", chan->f[i]); + fprintf(stderr, ")\n"); + } +#endif break; case TGSI_FILE_TEMPORARY: @@ -1638,6 +1648,35 @@ exec_kilp(struct tgsi_exec_machine *mach, mach->Temps[TEMP_KILMASK_I].xyzw[TEMP_KILMASK_C].u[0] |= kilmask; } +static void +emit_vertex(struct tgsi_exec_machine *mach) +{ + /* FIXME: check for exec mask correctly + unsigned i; + for (i = 0; i < QUAD_SIZE; ++i) { + if ((mach->ExecMask & (1 << i))) + */ + if (mach->ExecMask) { + mach->Temps[TEMP_OUTPUT_I].xyzw[TEMP_OUTPUT_C].u[0] += mach->NumOutputs; + mach->Primitives[mach->Temps[TEMP_PRIMITIVE_I].xyzw[TEMP_PRIMITIVE_C].u[0]]++; + } +} + +static void +emit_primitive(struct tgsi_exec_machine *mach) +{ + unsigned *prim_count = &mach->Temps[TEMP_PRIMITIVE_I].xyzw[TEMP_PRIMITIVE_C].u[0]; + /* FIXME: check for exec mask correctly + unsigned i; + for (i = 0; i < QUAD_SIZE; ++i) { + if ((mach->ExecMask & (1 << i))) + */ + if (mach->ExecMask) { + ++(*prim_count); + debug_assert((*prim_count * mach->NumOutputs) < mach->MaxGeometryShaderOutputs); + mach->Primitives[*prim_count] = 0; + } +} /* * Fetch a four texture samples using STR texture coordinates. @@ -3087,13 +3126,11 @@ exec_instruction( break; case TGSI_OPCODE_EMIT: - mach->Temps[TEMP_OUTPUT_I].xyzw[TEMP_OUTPUT_C].u[0] += 16; - mach->Primitives[mach->Temps[TEMP_PRIMITIVE_I].xyzw[TEMP_PRIMITIVE_C].u[0]]++; + emit_vertex(mach); break; case TGSI_OPCODE_ENDPRIM: - mach->Temps[TEMP_PRIMITIVE_I].xyzw[TEMP_PRIMITIVE_C].u[0]++; - mach->Primitives[mach->Temps[TEMP_PRIMITIVE_I].xyzw[TEMP_PRIMITIVE_C].u[0]] = 0; + emit_primitive(mach); break; case TGSI_OPCODE_BGNFOR: |