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Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_state_fs.c')
-rw-r--r--src/gallium/drivers/llvmpipe/lp_state_fs.c394
1 files changed, 284 insertions, 110 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_state_fs.c b/src/gallium/drivers/llvmpipe/lp_state_fs.c
index 521700acd5..9b0e7cdd37 100644
--- a/src/gallium/drivers/llvmpipe/lp_state_fs.c
+++ b/src/gallium/drivers/llvmpipe/lp_state_fs.c
@@ -38,9 +38,11 @@
#include "tgsi/tgsi_parse.h"
#include "lp_bld_type.h"
#include "lp_bld_conv.h"
+#include "lp_bld_logic.h"
#include "lp_bld_depth.h"
#include "lp_bld_tgsi.h"
#include "lp_bld_alpha.h"
+#include "lp_bld_blend.h"
#include "lp_bld_swizzle.h"
#include "lp_bld_flow.h"
#include "lp_bld_debug.h"
@@ -55,13 +57,13 @@ static const unsigned char quad_offset_y[4] = {0, 0, 1, 1};
static void
-setup_pos_vector(LLVMBuilderRef builder,
- LLVMValueRef x,
- LLVMValueRef y,
- LLVMValueRef a0_ptr,
- LLVMValueRef dadx_ptr,
- LLVMValueRef dady_ptr,
- LLVMValueRef *pos)
+generate_pos(LLVMBuilderRef builder,
+ LLVMValueRef x,
+ LLVMValueRef y,
+ LLVMValueRef a0_ptr,
+ LLVMValueRef dadx_ptr,
+ LLVMValueRef dady_ptr,
+ LLVMValueRef *pos)
{
LLVMTypeRef int_elem_type = LLVMInt32Type();
LLVMTypeRef int_vec_type = LLVMVectorType(int_elem_type, QUAD_SIZE);
@@ -110,13 +112,13 @@ setup_pos_vector(LLVMBuilderRef builder,
static void
-depth_test_generate(struct llvmpipe_context *lp,
- LLVMBuilderRef builder,
- const struct pipe_depth_state *state,
- union lp_type src_type,
- struct lp_build_mask_context *mask,
- LLVMValueRef src,
- LLVMValueRef dst_ptr)
+generate_depth(struct llvmpipe_context *lp,
+ LLVMBuilderRef builder,
+ const struct pipe_depth_state *state,
+ union lp_type src_type,
+ struct lp_build_mask_context *mask,
+ LLVMValueRef src,
+ LLVMValueRef dst_ptr)
{
const struct util_format_description *format_desc;
union lp_type dst_type;
@@ -151,18 +153,177 @@ depth_test_generate(struct llvmpipe_context *lp,
}
-static struct lp_fragment_shader_variant *
-shader_generate(struct llvmpipe_context *lp,
- struct lp_fragment_shader *shader,
- const struct lp_fragment_shader_variant_key *key)
+/**
+ * Generate the fragment shader, depth/stencil and alpha tests.
+ */
+static void
+generate_fs(struct llvmpipe_context *lp,
+ struct lp_fragment_shader *shader,
+ const struct lp_fragment_shader_variant_key *key,
+ LLVMBuilderRef builder,
+ union lp_type type,
+ unsigned i,
+ LLVMValueRef x,
+ LLVMValueRef y,
+ LLVMValueRef a0_ptr,
+ LLVMValueRef dadx_ptr,
+ LLVMValueRef dady_ptr,
+ LLVMValueRef consts_ptr,
+ LLVMValueRef *pmask,
+ LLVMValueRef *color,
+ LLVMValueRef depth_ptr,
+ LLVMValueRef samplers_ptr)
{
- struct llvmpipe_screen *screen = llvmpipe_screen(lp->pipe.screen);
- struct lp_fragment_shader_variant *variant;
const struct tgsi_token *tokens = shader->base.tokens;
- union lp_type type;
LLVMTypeRef elem_type;
LLVMTypeRef vec_type;
LLVMTypeRef int_vec_type;
+ LLVMValueRef pos[NUM_CHANNELS];
+ LLVMValueRef outputs[PIPE_MAX_SHADER_OUTPUTS][NUM_CHANNELS];
+ struct lp_build_mask_context mask;
+ boolean early_depth_test;
+ unsigned attrib;
+ unsigned chan;
+
+ elem_type = lp_build_elem_type(type);
+ vec_type = lp_build_vec_type(type);
+ int_vec_type = lp_build_int_vec_type(type);
+
+ generate_pos(builder, x, y, a0_ptr, dadx_ptr, dady_ptr, pos);
+
+ lp_build_mask_begin(&mask, builder, type, *pmask);
+
+ early_depth_test =
+ lp->depth_stencil->depth.enabled &&
+ lp->framebuffer.zsbuf &&
+ !lp->depth_stencil->alpha.enabled &&
+ !lp->fs->info.uses_kill &&
+ !lp->fs->info.writes_z;
+
+ if(early_depth_test)
+ generate_depth(lp, builder, &key->depth,
+ type, &mask,
+ pos[2], depth_ptr);
+
+ memset(outputs, 0, sizeof outputs);
+
+ lp_build_tgsi_soa(builder, tokens, type, &mask,
+ pos, a0_ptr, dadx_ptr, dady_ptr,
+ consts_ptr, outputs, samplers_ptr);
+
+ for (attrib = 0; attrib < shader->info.num_outputs; ++attrib) {
+ for(chan = 0; chan < NUM_CHANNELS; ++chan) {
+ if(outputs[attrib][chan]) {
+ lp_build_name(outputs[attrib][chan], "output%u.%u.%c", i, attrib, "xyzw"[chan]);
+
+ switch (shader->info.output_semantic_name[attrib]) {
+ case TGSI_SEMANTIC_COLOR:
+ {
+ unsigned cbuf = shader->info.output_semantic_index[attrib];
+
+ lp_build_name(outputs[attrib][chan], "color%u.%u.%c", i, attrib, "rgba"[chan]);
+
+ /* Alpha test */
+ /* XXX: should the alpha reference value be passed separately? */
+ if(cbuf == 0 && chan == 3)
+ lp_build_alpha_test(builder, &key->alpha, type,
+ &mask,
+ outputs[attrib][chan]);
+
+ if(cbuf == 0)
+ color[chan] = outputs[attrib][chan];
+
+ break;
+ }
+
+ case TGSI_SEMANTIC_POSITION:
+ if(chan == 2)
+ pos[2] = outputs[attrib][chan];
+ break;
+ }
+ }
+ }
+ }
+
+ if(!early_depth_test)
+ generate_depth(lp, builder, &key->depth,
+ type, &mask,
+ pos[2], depth_ptr);
+
+ lp_build_mask_end(&mask);
+
+ *pmask = mask.value;
+
+}
+
+
+/**
+ * Generate blending code according to blend->base state.
+ * The blend function will look like:
+ * blend(mask, src_color, constant color, dst_color)
+ * dst_color will be modified and contain the result of the blend func.
+ */
+static void
+generate_blend(const struct pipe_blend_state *blend,
+ LLVMBuilderRef builder,
+ union lp_type type,
+ LLVMValueRef mask,
+ LLVMValueRef *src,
+ LLVMValueRef const_ptr,
+ LLVMValueRef dst_ptr)
+{
+ struct lp_build_context bld;
+ LLVMTypeRef vec_type;
+ LLVMTypeRef int_vec_type;
+ LLVMValueRef con[4];
+ LLVMValueRef dst[4];
+ LLVMValueRef res[4];
+ unsigned chan;
+
+ vec_type = lp_build_vec_type(type);
+ int_vec_type = lp_build_int_vec_type(type);
+
+ lp_build_context_init(&bld, builder, type);
+
+ for(chan = 0; chan < 4; ++chan) {
+ LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), chan, 0);
+
+ if(const_ptr)
+ con[chan] = LLVMBuildLoad(builder, LLVMBuildGEP(builder, const_ptr, &index, 1, ""), "");
+ else
+ con[chan] = LLVMGetUndef(vec_type); /* FIXME */
+
+ dst[chan] = LLVMBuildLoad(builder, LLVMBuildGEP(builder, dst_ptr, &index, 1, ""), "");
+
+ lp_build_name(con[chan], "con.%c", "rgba"[chan]);
+ lp_build_name(dst[chan], "dst.%c", "rgba"[chan]);
+ }
+
+ lp_build_blend_soa(builder, blend, type, src, dst, con, res);
+
+ for(chan = 0; chan < 4; ++chan) {
+ LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), chan, 0);
+ lp_build_name(res[chan], "res.%c", "rgba"[chan]);
+ res[chan] = lp_build_select(&bld, mask, res[chan], dst[chan]);
+ LLVMBuildStore(builder, res[chan], LLVMBuildGEP(builder, dst_ptr, &index, 1, ""));
+ }
+}
+
+
+static struct lp_fragment_shader_variant *
+generate_fragment(struct llvmpipe_context *lp,
+ struct lp_fragment_shader *shader,
+ const struct lp_fragment_shader_variant_key *key)
+{
+ struct llvmpipe_screen *screen = llvmpipe_screen(lp->pipe.screen);
+ struct lp_fragment_shader_variant *variant;
+ union lp_type fs_type;
+ union lp_type blend_type;
+ LLVMTypeRef fs_elem_type;
+ LLVMTypeRef fs_vec_type;
+ LLVMTypeRef fs_int_vec_type;
+ LLVMTypeRef blend_vec_type;
+ LLVMTypeRef blend_int_vec_type;
LLVMTypeRef arg_types[10];
LLVMTypeRef func_type;
LLVMValueRef x;
@@ -177,24 +338,38 @@ shader_generate(struct llvmpipe_context *lp,
LLVMValueRef samplers_ptr;
LLVMBasicBlockRef block;
LLVMBuilderRef builder;
- LLVMValueRef pos[NUM_CHANNELS];
- LLVMValueRef outputs[PIPE_MAX_SHADER_OUTPUTS][NUM_CHANNELS];
- struct lp_build_mask_context mask;
- boolean early_depth_test;
+ LLVMValueRef fs_mask[LP_MAX_VECTOR_LENGTH];
+ LLVMValueRef fs_out_color[NUM_CHANNELS][LP_MAX_VECTOR_LENGTH];
+ LLVMValueRef blend_mask;
+ LLVMValueRef blend_in_color[NUM_CHANNELS];
LLVMValueRef fetch_texel;
+ unsigned num_fs;
unsigned i;
- unsigned attrib;
unsigned chan;
#ifdef DEBUG
tgsi_dump(shader->base.tokens, 0);
- debug_printf("depth.enabled = %u\n", key->depth.enabled);
- debug_printf("depth.func = %s\n", debug_dump_func(key->depth.func, TRUE));
- debug_printf("depth.writemask = %u\n", key->depth.writemask);
- debug_printf("depth.occlusion_count = %u\n", key->depth.occlusion_count);
- debug_printf("alpha.enabled = %u\n", key->alpha.enabled);
- debug_printf("alpha.func = %s\n", debug_dump_func(key->alpha.func, TRUE));
- debug_printf("alpha.ref_value = %f\n", key->alpha.ref_value);
+ if(key->depth.enabled) {
+ debug_printf("depth.func = %s\n", debug_dump_func(key->depth.func, TRUE));
+ debug_printf("depth.writemask = %u\n", key->depth.writemask);
+ debug_printf("depth.occlusion_count = %u\n", key->depth.occlusion_count);
+ }
+ if(key->alpha.enabled) {
+ debug_printf("alpha.func = %s\n", debug_dump_func(key->alpha.func, TRUE));
+ debug_printf("alpha.ref_value = %f\n", key->alpha.ref_value);
+ }
+ if(key->blend.logicop_enable) {
+ debug_printf("blend.logicop_func = %u\n", key->blend.logicop_func);
+ }
+ else if(key->blend.blend_enable) {
+ debug_printf("blend.rgb_func = %s\n", debug_dump_blend_func (key->blend.rgb_func, TRUE));
+ debug_printf("rgb_src_factor = %s\n", debug_dump_blend_factor(key->blend.rgb_src_factor, TRUE));
+ debug_printf("rgb_dst_factor = %s\n", debug_dump_blend_factor(key->blend.rgb_dst_factor, TRUE));
+ debug_printf("alpha_func = %s\n", debug_dump_blend_func (key->blend.alpha_func, TRUE));
+ debug_printf("alpha_src_factor = %s\n", debug_dump_blend_factor(key->blend.alpha_src_factor, TRUE));
+ debug_printf("alpha_dst_factor = %s\n", debug_dump_blend_factor(key->blend.alpha_dst_factor, TRUE));
+ }
+ debug_printf("blend.colormask = 0x%x\n", key->blend.colormask);
#endif
variant = CALLOC_STRUCT(lp_fragment_shader_variant);
@@ -204,26 +379,37 @@ shader_generate(struct llvmpipe_context *lp,
variant->shader = shader;
memcpy(&variant->key, key, sizeof *key);
- type.value = 0;
- type.floating = TRUE; /* floating point values */
- type.sign = TRUE; /* values are signed */
- type.norm = FALSE; /* values are not limited to [0,1] or [-1,1] */
- type.width = 32; /* 32-bit float */
- type.length = 4; /* 4 element per vector */
+ fs_type.value = 0;
+ fs_type.floating = TRUE; /* floating point values */
+ fs_type.sign = TRUE; /* values are signed */
+ fs_type.norm = FALSE; /* values are not limited to [0,1] or [-1,1] */
+ fs_type.width = 32; /* 32-bit float */
+ fs_type.length = 4; /* 4 element per vector */
+ num_fs = 4;
- elem_type = lp_build_elem_type(type);
- vec_type = lp_build_vec_type(type);
- int_vec_type = lp_build_int_vec_type(type);
+ blend_type.value = 0;
+ blend_type.floating = FALSE; /* values are integers */
+ blend_type.sign = FALSE; /* values are unsigned */
+ blend_type.norm = TRUE; /* values are in [0,1] or [-1,1] */
+ blend_type.width = 8; /* 8-bit ubyte values */
+ blend_type.length = 16; /* 16 elements per vector */
+
+ fs_elem_type = lp_build_elem_type(fs_type);
+ fs_vec_type = lp_build_vec_type(fs_type);
+ fs_int_vec_type = lp_build_int_vec_type(fs_type);
+
+ blend_vec_type = lp_build_vec_type(blend_type);
+ blend_int_vec_type = lp_build_int_vec_type(blend_type);
arg_types[0] = LLVMInt32Type(); /* x */
arg_types[1] = LLVMInt32Type(); /* y */
- arg_types[2] = LLVMPointerType(elem_type, 0); /* a0 */
- arg_types[3] = LLVMPointerType(elem_type, 0); /* dadx */
- arg_types[4] = LLVMPointerType(elem_type, 0); /* dady */
- arg_types[5] = LLVMPointerType(elem_type, 0); /* consts */
- arg_types[6] = LLVMPointerType(int_vec_type, 0); /* mask */
- arg_types[7] = LLVMPointerType(vec_type, 0); /* color */
- arg_types[8] = LLVMPointerType(int_vec_type, 0); /* depth */
+ arg_types[2] = LLVMPointerType(fs_elem_type, 0); /* a0 */
+ arg_types[3] = LLVMPointerType(fs_elem_type, 0); /* dadx */
+ arg_types[4] = LLVMPointerType(fs_elem_type, 0); /* dady */
+ arg_types[5] = LLVMPointerType(fs_elem_type, 0); /* consts */
+ arg_types[6] = LLVMPointerType(fs_int_vec_type, 0); /* mask */
+ arg_types[7] = LLVMPointerType(blend_vec_type, 0); /* color */
+ arg_types[8] = LLVMPointerType(fs_int_vec_type, 0); /* depth */
arg_types[9] = LLVMPointerType(LLVMInt8Type(), 0); /* samplers */
func_type = LLVMFunctionType(LLVMVoidType(), arg_types, Elements(arg_types), 0);
@@ -260,70 +446,57 @@ shader_generate(struct llvmpipe_context *lp,
builder = LLVMCreateBuilder();
LLVMPositionBuilderAtEnd(builder, block);
- setup_pos_vector(builder, x, y, a0_ptr, dadx_ptr, dady_ptr, pos);
-
- lp_build_mask_begin(&mask, builder, type,
- LLVMBuildLoad(builder, mask_ptr, ""));
-
- early_depth_test =
- lp->depth_stencil->depth.enabled &&
- lp->framebuffer.zsbuf &&
- !lp->depth_stencil->alpha.enabled &&
- !lp->fs->info.uses_kill &&
- !lp->fs->info.writes_z;
-
- if(early_depth_test)
- depth_test_generate(lp, builder, &key->depth,
- type, &mask,
- pos[2], depth_ptr);
-
- memset(outputs, 0, sizeof outputs);
-
- lp_build_tgsi_soa(builder, tokens, type, &mask,
- pos, a0_ptr, dadx_ptr, dady_ptr,
- consts_ptr, outputs, samplers_ptr);
-
- for (attrib = 0; attrib < shader->info.num_outputs; ++attrib) {
- for(chan = 0; chan < NUM_CHANNELS; ++chan) {
- if(outputs[attrib][chan]) {
- lp_build_name(outputs[attrib][chan], "output%u.%c", attrib, "xyzw"[chan]);
-
- switch (shader->info.output_semantic_name[attrib]) {
- case TGSI_SEMANTIC_COLOR:
- {
- unsigned cbuf = shader->info.output_semantic_index[attrib];
- LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), cbuf*NUM_CHANNELS + chan, 0);
- LLVMValueRef output_ptr = LLVMBuildGEP(builder, color_ptr, &index, 1, "");
- lp_build_name(outputs[attrib][chan], "color%u.%c", attrib, "rgba"[chan]);
- LLVMBuildStore(builder, outputs[attrib][chan], output_ptr);
-
- /* Alpha test */
- /* XXX: should the alpha reference value be passed separately? */
- if(cbuf == 0 && chan == 3)
- lp_build_alpha_test(builder, &key->alpha, type,
- &mask,
- outputs[attrib][chan]);
-
- break;
- }
+ for(i = 0; i < num_fs; ++i) {
+ LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i, 0);
+ LLVMValueRef out_color[NUM_CHANNELS];
+ LLVMValueRef x_i;
+ LLVMValueRef depth_ptr_i;
+
+ /* TODO: Reuse position interpolation */
+ x_i = LLVMBuildAdd(builder, x, LLVMConstInt(LLVMInt32Type(), 2*i, 0), "");
+
+ fs_mask[i] = LLVMBuildLoad(builder, LLVMBuildGEP(builder, mask_ptr, &index, 1, ""), "");
+ depth_ptr_i = LLVMBuildGEP(builder, depth_ptr, &index, 1, "");
+
+ generate_fs(lp,
+ shader,
+ key,
+ builder,
+ fs_type,
+ i,
+ x_i,
+ y,
+ a0_ptr,
+ dadx_ptr,
+ dady_ptr,
+ consts_ptr,
+ &fs_mask[i],
+ out_color,
+ depth_ptr_i,
+ samplers_ptr);
+
+ for(chan = 0; chan < NUM_CHANNELS; ++chan)
+ fs_out_color[chan][i] = out_color[chan];
+ }
- case TGSI_SEMANTIC_POSITION:
- if(chan == 2)
- pos[2] = outputs[attrib][chan];
- break;
- }
- }
- }
+ for(chan = 0; chan < NUM_CHANNELS; ++chan) {
+ lp_build_conv(builder, fs_type, blend_type,
+ fs_out_color[chan], num_fs,
+ &blend_in_color[chan], 1);
+ lp_build_name(blend_in_color[chan], "color.%c", "rgba"[chan]);
}
- if(!early_depth_test)
- depth_test_generate(lp, builder, &key->depth,
- type, &mask,
- pos[2], depth_ptr);
+ lp_build_conv_mask(builder, fs_type, blend_type,
+ fs_mask, num_fs,
+ &blend_mask, 1);
- lp_build_mask_end(&mask);
- if(mask.value)
- LLVMBuildStore(builder, mask.value, mask_ptr);
+ generate_blend(&key->blend,
+ builder,
+ blend_type,
+ blend_mask,
+ blend_in_color,
+ NULL /* FIXME: blend_const_color */,
+ color_ptr);
LLVMBuildRetVoid(builder);;
@@ -512,6 +685,7 @@ void llvmpipe_update_fs(struct llvmpipe_context *lp)
memset(&key, 0, sizeof key);
memcpy(&key.depth, &lp->depth_stencil->depth, sizeof &key.depth);
memcpy(&key.alpha, &lp->depth_stencil->alpha, sizeof &key.alpha);
+ memcpy(&key.blend, &lp->blend->base, sizeof &key.blend);
variant = shader->variants;
while(variant) {
@@ -522,7 +696,7 @@ void llvmpipe_update_fs(struct llvmpipe_context *lp)
}
if(!variant)
- variant = shader_generate(lp, shader, &key);
+ variant = generate_fragment(lp, shader, &key);
shader->current = variant;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 05:51:15 +0000