diff options
Diffstat (limited to 'src/gallium/drivers/cell/ppu/cell_state_per_fragment.c')
| -rw-r--r-- | src/gallium/drivers/cell/ppu/cell_state_per_fragment.c | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/src/gallium/drivers/cell/ppu/cell_state_per_fragment.c b/src/gallium/drivers/cell/ppu/cell_state_per_fragment.c index 53ae3aa50e..78cb446c14 100644 --- a/src/gallium/drivers/cell/ppu/cell_state_per_fragment.c +++ b/src/gallium/drivers/cell/ppu/cell_state_per_fragment.c @@ -132,9 +132,9 @@ emit_alpha_test(struct pipe_depth_stencil_alpha_state *dsa, /** + * Generate code to perform Z testing. Four Z values are tested at once. * \param dsa Current depth-test state * \param f Function to which code should be appended - * \param m Mask of allocated / free SPE registers * \param mask Index of register to contain depth-pass mask * \param stored Index of register containing values from depth buffer * \param calculated Index of register containing per-fragment depth values @@ -198,6 +198,7 @@ emit_depth_test(struct pipe_depth_stencil_alpha_state *dsa, /** + * Generate code to apply the stencil operation (after testing). * \note Emits a maximum of 5 instructions. * * \warning @@ -222,9 +223,13 @@ emit_stencil_op(struct spe_function *f, spe_il(f, result, ref); break; case PIPE_STENCIL_OP_INCR: + /* clamp = [0xff, 0xff, 0xff, 0xff] */ spe_il(f, clamp, 0x0ff); + /* result[i] = in[i] + 1 */ spe_ai(f, result, in, 1); + /* clamp_mask[i] = (result[i] > 0xff) */ spe_clgti(f, clamp_mask, result, 0x0ff); + /* result[i] = clamp_mask[i] ? clamp[i] : result[i] */ spe_selb(f, result, result, clamp, clamp_mask); break; case PIPE_STENCIL_OP_DECR: @@ -259,10 +264,10 @@ emit_stencil_op(struct spe_function *f, /** + * Generate code to do stencil test. Four pixels are tested at once. * \param dsa Depth / stencil test state * \param face 0 for front face, 1 for back face * \param f Function to append instructions to - * \param reg_mask Mask of allocated registers * \param mask Register containing mask of fragments passing the * alpha test * \param depth_mask Register containing mask of fragments passing the @@ -310,13 +315,14 @@ emit_stencil_test(struct pipe_depth_stencil_alpha_state *dsa, switch (dsa->stencil[face].func) { case PIPE_FUNC_NEVER: - spe_il(f, stencil_mask, 0); + spe_il(f, stencil_mask, 0); /* stencil_mask[0..3] = [0,0,0,0] */ break; case PIPE_FUNC_NOTEQUAL: complement = TRUE; /* FALLTHROUGH */ case PIPE_FUNC_EQUAL: + /* stencil_mask[i] = (stored[i] == ref) */ spe_ceqi(f, stencil_mask, stored, ref); break; @@ -324,6 +330,8 @@ emit_stencil_test(struct pipe_depth_stencil_alpha_state *dsa, complement = TRUE; /* FALLTHROUGH */ case PIPE_FUNC_GREATER: + complement = TRUE; + /* stencil_mask[i] = (stored[i] > ref) */ spe_clgti(f, stencil_mask, stored, ref); break; @@ -331,8 +339,11 @@ emit_stencil_test(struct pipe_depth_stencil_alpha_state *dsa, complement = TRUE; /* FALLTHROUGH */ case PIPE_FUNC_GEQUAL: + /* stencil_mask[i] = (stored[i] > ref) */ spe_clgti(f, stencil_mask, stored, ref); + /* tmp[i] = (stored[i] == ref) */ spe_ceqi(f, tmp, stored, ref); + /* stencil_mask[i] = stencil_mask[i] | tmp[i] */ spe_or(f, stencil_mask, stencil_mask, tmp); break; @@ -461,7 +472,7 @@ cell_generate_depth_stencil_test(struct cell_depth_stencil_alpha_state *cdsa) * + 25 (front stencil) + 25 (back stencil) + 4 = 63 instructions. Round * up to 64 to make it a happy power-of-two. */ - spe_init_func(f, 4 * 64); + spe_init_func(f, SPE_INST_SIZE * 64); /* Allocate registers for the function's input parameters. Cleverly (and @@ -540,7 +551,7 @@ cell_generate_depth_stencil_test(struct cell_depth_stencil_alpha_state *cdsa) spe_selb(f, depth, depth, zvals, mask); } - spe_bi(f, 0, 0, 0); + spe_bi(f, 0, 0, 0); /* return from function call */ #if 0 @@ -956,7 +967,7 @@ cell_generate_alpha_blend(struct cell_blend_state *cb) * + 4 (fragment mask) + 1 (return) = 55 instlructions. Round up to 64 to * make it a happy power-of-two. */ - spe_init_func(f, 4 * 64); + spe_init_func(f, SPE_INST_SIZE * 64); const int frag[4] = { @@ -1144,9 +1155,10 @@ cell_generate_alpha_blend(struct cell_blend_state *cb) } -int PC_OFFSET(const struct spe_function *f, const void *d) +static int +PC_OFFSET(const struct spe_function *f, const void *d) { - const intptr_t pc = (intptr_t) f->csr; + const intptr_t pc = (intptr_t) &f->store[f->num_inst]; const intptr_t ea = ~0x0f & (intptr_t) d; return (ea - pc) >> 2; @@ -1178,7 +1190,7 @@ cell_generate_logic_op(struct spe_function *f, * bytes (equiv. to 8 instructions) are needed for data storage. Round up * to 64 to make it a happy power-of-two. */ - spe_init_func(f, 4 * 64); + spe_init_func(f, SPE_INST_SIZE * 64); /* Pixel colors in framebuffer format in AoS layout. |