diff options
author | Keith Whitwell <keithw@vmware.com> | 2009-02-16 19:50:48 +0000 |
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committer | Keith Whitwell <keithw@vmware.com> | 2009-02-16 19:50:48 +0000 |
commit | 59d54334c96f44ed1d8bf660dc96221362a77d04 (patch) | |
tree | e9ab34e568256bcdc2a88602c47072ab769211e8 /src/mesa/shader/slang/slang_vartable.c | |
parent | 7c8836e9ef49d938aa55a1c385b95c6371c301f1 (diff) | |
parent | c5c383596ddb26cd75e4b355918ad16915283b59 (diff) |
Merge branch 'master' into gallium-texture-transfer
Conflicts:
src/mesa/state_tracker/st_cb_accum.c
src/mesa/state_tracker/st_cb_drawpixels.c
Diffstat (limited to 'src/mesa/shader/slang/slang_vartable.c')
-rw-r--r-- | src/mesa/shader/slang/slang_vartable.c | 59 |
1 files changed, 20 insertions, 39 deletions
diff --git a/src/mesa/shader/slang/slang_vartable.c b/src/mesa/shader/slang/slang_vartable.c index de0c93957b..a4ebacc093 100644 --- a/src/mesa/shader/slang/slang_vartable.c +++ b/src/mesa/shader/slang/slang_vartable.c @@ -4,6 +4,7 @@ #include "shader/prog_print.h" #include "slang_compile.h" #include "slang_compile_variable.h" +#include "slang_emit.h" #include "slang_mem.h" #include "slang_vartable.h" #include "slang_ir.h" @@ -72,9 +73,8 @@ _slang_delete_var_table(slang_var_table *vt) /** - * Create new table, put at head, return ptr to it. - * XXX we should take a maxTemps parameter to indicate how many temporaries - * are available for the current shader/program target. + * Create new table on top of vartable stack. + * Used when we enter a {} block. */ void _slang_push_var_table(slang_var_table *vt) @@ -95,7 +95,8 @@ _slang_push_var_table(slang_var_table *vt) /** - * Destroy given table, return ptr to Parent + * Pop top entry from variable table. + * Used when we leave a {} block. */ void _slang_pop_var_table(slang_var_table *vt) @@ -125,10 +126,12 @@ _slang_pop_var_table(slang_var_table *vt) else comp = 0; - assert(store->Index >= 0); - for (j = 0; j < store->Size; j++) { - assert(t->Temps[store->Index * 4 + j + comp] == VAR); - t->Temps[store->Index * 4 + j + comp] = FREE; + /* store->Index may be -1 if we run out of registers */ + if (store->Index >= 0) { + for (j = 0; j < store->Size; j++) { + assert(t->Temps[store->Index * 4 + j + comp] == VAR); + t->Temps[store->Index * 4 + j + comp] = FREE; + } } store->Index = -1; } @@ -156,7 +159,7 @@ _slang_pop_var_table(slang_var_table *vt) /** - * Add a new variable to the given symbol table. + * Add a new variable to the given var/symbol table. */ void _slang_add_variable(slang_var_table *vt, slang_variable *v) @@ -214,6 +217,7 @@ alloc_reg(slang_var_table *vt, GLint size, GLboolean isTemp) for (i = 0; i <= vt->MaxRegisters * 4 - size; i += step) { GLuint found = 0; for (j = 0; j < (GLuint) size; j++) { + assert(i + j < 4 * MAX_PROGRAM_TEMPS); if (i + j < vt->MaxRegisters * 4 && t->Temps[i + j] == FREE) { found++; } @@ -225,13 +229,17 @@ alloc_reg(slang_var_table *vt, GLint size, GLboolean isTemp) /* found block of size free regs */ if (size > 1) assert(i % 4 == 0); - for (j = 0; j < (GLuint) size; j++) + for (j = 0; j < (GLuint) size; j++) { + assert(i + j < 4 * MAX_PROGRAM_TEMPS); t->Temps[i + j] = isTemp ? TEMP : VAR; + } assert(i < MAX_PROGRAM_TEMPS * 4); t->ValSize[i] = size; return i; } } + + /* if we get here, we ran out of registers */ return -1; } @@ -259,21 +267,7 @@ _slang_alloc_var(slang_var_table *vt, slang_ir_storage *store) return GL_FALSE; store->Index = i / 4; - if (store->Size == 1) { - const GLuint comp = i % 4; - store->Swizzle = MAKE_SWIZZLE4(comp, comp, comp, comp); - } - else if (store->Size == 2) { - store->Swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, - SWIZZLE_NIL, SWIZZLE_NIL); - } - else if (store->Size == 3) { - store->Swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, - SWIZZLE_Z, SWIZZLE_NIL); - } - else { - store->Swizzle = SWIZZLE_NOOP; - } + store->Swizzle = _slang_var_swizzle(store->Size, i % 4); if (dbg) printf("Alloc var storage sz %d at %d.%s (level %d) store %p\n", @@ -301,20 +295,7 @@ _slang_alloc_temp(slang_var_table *vt, slang_ir_storage *store) assert(store->Index < 0); store->Index = i / 4; - if (store->Size == 1) { - const GLuint comp = i % 4; - store->Swizzle = MAKE_SWIZZLE4(comp, comp, comp, comp); - } - else { - /* XXX improve swizzled for size=2/3, use for writemask... */ -#if 1 - if (store->Size == 2) { - store->Swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, - SWIZZLE_NIL, SWIZZLE_NIL); - } -#endif - store->Swizzle = SWIZZLE_NOOP; - } + store->Swizzle = _slang_var_swizzle(store->Size, i % 4); if (dbg) printf("Alloc temp sz %d at %d.%s (level %d) store %p\n", store->Size, store->Index, |