util: Move gallium's PIPE_FORMAT utils to /util/format/
[mesa.git] / src / gallium / drivers / r300 / r300_fs.c
index dab57fdcc77e73d2a489b81b2785f0d00646f8b3..ffb041e2488c735dfde0572c7780d298cb38d294 100644 (file)
  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
 
+#include "util/format/u_format.h"
 #include "util/u_math.h"
 #include "util/u_memory.h"
 
 #include "tgsi/tgsi_dump.h"
 #include "tgsi/tgsi_ureg.h"
 
+#include "r300_cb.h"
 #include "r300_context.h"
+#include "r300_emit.h"
 #include "r300_screen.h"
 #include "r300_fs.h"
 #include "r300_reg.h"
+#include "r300_texture.h"
 #include "r300_tgsi_to_rc.h"
 
-#include "radeon_code.h"
-#include "radeon_compiler.h"
+#include "compiler/radeon_compiler.h"
 
 /* Convert info about FS input semantics to r300_shader_semantics. */
 void r300_shader_read_fs_inputs(struct tgsi_shader_info* info,
@@ -70,6 +73,11 @@ void r300_shader_read_fs_inputs(struct tgsi_shader_info* info,
                 fs_inputs->wpos = i;
                 break;
 
+            case TGSI_SEMANTIC_FACE:
+                assert(index == 0);
+                fs_inputs->face = i;
+                break;
+
             default:
                 fprintf(stderr, "r300: FP: Unknown input semantic: %i\n",
                         info->input_semantic_name[i]);
@@ -118,6 +126,9 @@ static void allocate_hardware_inputs(
             allocate(mydata, inputs->color[i], reg++);
         }
     }
+    if (inputs->face != ATTR_UNUSED) {
+        allocate(mydata, inputs->face, reg++);
+    }
     for (i = 0; i < ATTR_GENERIC_COUNT; i++) {
         if (inputs->generic[i] != ATTR_UNUSED) {
             allocate(mydata, inputs->generic[i], reg++);
@@ -138,49 +149,58 @@ static void get_external_state(
     struct r300_textures_state *texstate = r300->textures_state.state;
     unsigned i;
 
+    state->alpha_to_one = r300->alpha_to_one && r300->msaa_enable;
+
     for (i = 0; i < texstate->sampler_state_count; i++) {
-        struct r300_sampler_state* s = texstate->sampler_states[i];
+        struct r300_sampler_state *s = texstate->sampler_states[i];
+        struct r300_sampler_view *v = texstate->sampler_views[i];
+        struct r300_resource *t;
 
-        if (!s) {
+        if (!s || !v) {
             continue;
         }
 
+        t = r300_resource(v->base.texture);
+
         if (s->state.compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) {
-            /* XXX Gallium doesn't provide us with any information regarding
-             * this mode, so we are screwed. I'm setting 0 = LUMINANCE. */
-            state->unit[i].depth_texture_mode = 0;
+            state->unit[i].compare_mode_enabled = 1;
 
             /* Fortunately, no need to translate this. */
             state->unit[i].texture_compare_func = s->state.compare_func;
         }
 
-        if (texstate->sampler_views[i]) {
-            struct r300_texture *t;
-            t = (struct r300_texture*)texstate->sampler_views[i]->base.texture;
+        state->unit[i].non_normalized_coords = !s->state.normalized_coords;
 
-            state->unit[i].fake_npot = t->uses_pitch;
+        /* Pass texture swizzling to the compiler, some lowering passes need it. */
+        if (state->unit[i].compare_mode_enabled) {
+            state->unit[i].texture_swizzle =
+                RC_MAKE_SWIZZLE(v->swizzle[0], v->swizzle[1],
+                                v->swizzle[2], v->swizzle[3]);
         }
-        state->unit[i].non_normalized_coords = !s->state.normalized_coords;
 
         /* XXX this should probably take into account STR, not just S. */
-        switch (s->state.wrap_s) {
+        if (t->tex.is_npot) {
+            switch (s->state.wrap_s) {
             case PIPE_TEX_WRAP_REPEAT:
                 state->unit[i].wrap_mode = RC_WRAP_REPEAT;
                 break;
-            case PIPE_TEX_WRAP_CLAMP:
-            case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
-            case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
-                state->unit[i].wrap_mode = RC_WRAP_CLAMP;
-                break;
+
             case PIPE_TEX_WRAP_MIRROR_REPEAT:
+                state->unit[i].wrap_mode = RC_WRAP_MIRRORED_REPEAT;
+                break;
+
             case PIPE_TEX_WRAP_MIRROR_CLAMP:
             case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
             case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
-                state->unit[i].wrap_mode = RC_WRAP_MIRROR;
+                state->unit[i].wrap_mode = RC_WRAP_MIRRORED_CLAMP;
                 break;
+
             default:
                 state->unit[i].wrap_mode = RC_WRAP_NONE;
-                break;
+            }
+
+            if (t->b.b.target == PIPE_TEXTURE_3D)
+                state->unit[i].clamp_and_scale_before_fetch = TRUE;
         }
     }
 }
@@ -200,7 +220,7 @@ static void r300_dummy_fragment_shader(
     struct ureg_src imm;
 
     /* Make a simple fragment shader which outputs (0, 0, 0, 1) */
-    ureg = ureg_create(TGSI_PROCESSOR_FRAGMENT);
+    ureg = ureg_create(PIPE_SHADER_FRAGMENT);
     out = ureg_DECL_output(ureg, TGSI_SEMANTIC_COLOR, 0);
     imm = ureg_imm4f(ureg, 0, 0, 0, 1);
 
@@ -215,6 +235,182 @@ static void r300_dummy_fragment_shader(
     ureg_destroy(ureg);
 }
 
+static void r300_emit_fs_code_to_buffer(
+    struct r300_context *r300,
+    struct r300_fragment_shader_code *shader)
+{
+    struct rX00_fragment_program_code *generic_code = &shader->code;
+    unsigned imm_count = shader->immediates_count;
+    unsigned imm_first = shader->externals_count;
+    unsigned imm_end = generic_code->constants.Count;
+    struct rc_constant *constants = generic_code->constants.Constants;
+    unsigned i;
+    CB_LOCALS;
+
+    if (r300->screen->caps.is_r500) {
+        struct r500_fragment_program_code *code = &generic_code->code.r500;
+
+        shader->cb_code_size = 19 +
+                               ((code->inst_end + 1) * 6) +
+                               imm_count * 7 +
+                               code->int_constant_count * 2;
+
+        NEW_CB(shader->cb_code, shader->cb_code_size);
+        OUT_CB_REG(R500_US_CONFIG, R500_ZERO_TIMES_ANYTHING_EQUALS_ZERO);
+        OUT_CB_REG(R500_US_PIXSIZE, code->max_temp_idx);
+        OUT_CB_REG(R500_US_FC_CTRL, code->us_fc_ctrl);
+        for(i = 0; i < code->int_constant_count; i++){
+                OUT_CB_REG(R500_US_FC_INT_CONST_0 + (i * 4),
+                                                code->int_constants[i]);
+        }
+        OUT_CB_REG(R500_US_CODE_RANGE,
+                   R500_US_CODE_RANGE_ADDR(0) | R500_US_CODE_RANGE_SIZE(code->inst_end));
+        OUT_CB_REG(R500_US_CODE_OFFSET, 0);
+        OUT_CB_REG(R500_US_CODE_ADDR,
+                   R500_US_CODE_START_ADDR(0) | R500_US_CODE_END_ADDR(code->inst_end));
+
+        OUT_CB_REG(R500_GA_US_VECTOR_INDEX, R500_GA_US_VECTOR_INDEX_TYPE_INSTR);
+        OUT_CB_ONE_REG(R500_GA_US_VECTOR_DATA, (code->inst_end + 1) * 6);
+        for (i = 0; i <= code->inst_end; i++) {
+            OUT_CB(code->inst[i].inst0);
+            OUT_CB(code->inst[i].inst1);
+            OUT_CB(code->inst[i].inst2);
+            OUT_CB(code->inst[i].inst3);
+            OUT_CB(code->inst[i].inst4);
+            OUT_CB(code->inst[i].inst5);
+        }
+
+        /* Emit immediates. */
+        if (imm_count) {
+            for(i = imm_first; i < imm_end; ++i) {
+                if (constants[i].Type == RC_CONSTANT_IMMEDIATE) {
+                    const float *data = constants[i].u.Immediate;
+
+                    OUT_CB_REG(R500_GA_US_VECTOR_INDEX,
+                               R500_GA_US_VECTOR_INDEX_TYPE_CONST |
+                               (i & R500_GA_US_VECTOR_INDEX_MASK));
+                    OUT_CB_ONE_REG(R500_GA_US_VECTOR_DATA, 4);
+                    OUT_CB_TABLE(data, 4);
+                }
+            }
+        }
+    } else { /* r300 */
+        struct r300_fragment_program_code *code = &generic_code->code.r300;
+        unsigned int alu_length = code->alu.length;
+        unsigned int alu_iterations = ((alu_length - 1) / 64) + 1;
+        unsigned int tex_length = code->tex.length;
+        unsigned int tex_iterations =
+            tex_length > 0 ? ((tex_length - 1) / 32) + 1 : 0;
+        unsigned int iterations =
+            alu_iterations > tex_iterations ? alu_iterations : tex_iterations;
+        unsigned int bank = 0;
+
+        shader->cb_code_size = 15 +
+            /* R400_US_CODE_BANK */
+            (r300->screen->caps.is_r400 ? 2 * (iterations + 1): 0) +
+            /* R400_US_CODE_EXT */
+            (r300->screen->caps.is_r400 ? 2 : 0) +
+            /* R300_US_ALU_{RGB,ALPHA}_{INST,ADDR}_0, R400_US_ALU_EXT_ADDR_0 */
+            (code->r390_mode ? (5 * alu_iterations) : 4) +
+            /* R400_US_ALU_EXT_ADDR_[0-63] */
+            (code->r390_mode ? (code->alu.length) : 0) +
+            /* R300_US_ALU_{RGB,ALPHA}_{INST,ADDR}_0 */
+            code->alu.length * 4 +
+            /* R300_US_TEX_INST_0, R300_US_TEX_INST_[0-31] */
+            (code->tex.length > 0 ? code->tex.length + tex_iterations : 0) +
+            imm_count * 5;
+
+        NEW_CB(shader->cb_code, shader->cb_code_size);
+
+        OUT_CB_REG(R300_US_CONFIG, code->config);
+        OUT_CB_REG(R300_US_PIXSIZE, code->pixsize);
+        OUT_CB_REG(R300_US_CODE_OFFSET, code->code_offset);
+
+        if (code->r390_mode) {
+            OUT_CB_REG(R400_US_CODE_EXT, code->r400_code_offset_ext);
+        } else if (r300->screen->caps.is_r400) {
+            /* This register appears to affect shaders even if r390_mode is
+             * disabled, so it needs to be set to 0 for shaders that
+             * don't use r390_mode. */
+            OUT_CB_REG(R400_US_CODE_EXT, 0);
+        }
+
+        OUT_CB_REG_SEQ(R300_US_CODE_ADDR_0, 4);
+        OUT_CB_TABLE(code->code_addr, 4);
+
+        do {
+            unsigned int bank_alu_length = (alu_length < 64 ? alu_length : 64);
+            unsigned int bank_alu_offset = bank * 64;
+            unsigned int bank_tex_length = (tex_length < 32 ? tex_length : 32);
+            unsigned int bank_tex_offset = bank * 32;
+
+            if (r300->screen->caps.is_r400) {
+                OUT_CB_REG(R400_US_CODE_BANK, code->r390_mode ?
+                                (bank << R400_BANK_SHIFT) | R400_R390_MODE_ENABLE : 0);//2
+            }
+
+            if (bank_alu_length > 0) {
+                OUT_CB_REG_SEQ(R300_US_ALU_RGB_INST_0, bank_alu_length);
+                for (i = 0; i < bank_alu_length; i++)
+                    OUT_CB(code->alu.inst[i + bank_alu_offset].rgb_inst);
+
+                OUT_CB_REG_SEQ(R300_US_ALU_RGB_ADDR_0, bank_alu_length);
+                for (i = 0; i < bank_alu_length; i++)
+                    OUT_CB(code->alu.inst[i + bank_alu_offset].rgb_addr);
+
+                OUT_CB_REG_SEQ(R300_US_ALU_ALPHA_INST_0, bank_alu_length);
+                for (i = 0; i < bank_alu_length; i++)
+                    OUT_CB(code->alu.inst[i + bank_alu_offset].alpha_inst);
+
+                OUT_CB_REG_SEQ(R300_US_ALU_ALPHA_ADDR_0, bank_alu_length);
+                for (i = 0; i < bank_alu_length; i++)
+                    OUT_CB(code->alu.inst[i + bank_alu_offset].alpha_addr);
+
+                if (code->r390_mode) {
+                    OUT_CB_REG_SEQ(R400_US_ALU_EXT_ADDR_0, bank_alu_length);
+                    for (i = 0; i < bank_alu_length; i++)
+                        OUT_CB(code->alu.inst[i + bank_alu_offset].r400_ext_addr);
+                }
+            }
+
+            if (bank_tex_length > 0) {
+                OUT_CB_REG_SEQ(R300_US_TEX_INST_0, bank_tex_length);
+                OUT_CB_TABLE(code->tex.inst + bank_tex_offset, bank_tex_length);
+            }
+
+            alu_length -= bank_alu_length;
+            tex_length -= bank_tex_length;
+            bank++;
+        } while(code->r390_mode && (alu_length > 0 || tex_length > 0));
+
+        /* R400_US_CODE_BANK needs to be reset to 0, otherwise some shaders
+         * will be rendered incorrectly. */
+        if (r300->screen->caps.is_r400) {
+            OUT_CB_REG(R400_US_CODE_BANK,
+                code->r390_mode ? R400_R390_MODE_ENABLE : 0);
+        }
+
+        /* Emit immediates. */
+        if (imm_count) {
+            for(i = imm_first; i < imm_end; ++i) {
+                if (constants[i].Type == RC_CONSTANT_IMMEDIATE) {
+                    const float *data = constants[i].u.Immediate;
+
+                    OUT_CB_REG_SEQ(R300_PFS_PARAM_0_X + i * 16, 4);
+                    OUT_CB(pack_float24(data[0]));
+                    OUT_CB(pack_float24(data[1]));
+                    OUT_CB(pack_float24(data[2]));
+                    OUT_CB(pack_float24(data[3]));
+                }
+            }
+        }
+    }
+
+    OUT_CB_REG(R300_FG_DEPTH_SRC, shader->fg_depth_src);
+    OUT_CB_REG(R300_US_W_FMT, shader->us_out_w);
+    END_CB;
+}
+
 static void r300_translate_fragment_shader(
     struct r300_context* r300,
     struct r300_fragment_shader_code* shader,
@@ -222,30 +418,46 @@ static void r300_translate_fragment_shader(
 {
     struct r300_fragment_program_compiler compiler;
     struct tgsi_to_rc ttr;
-    int wpos;
+    int wpos, face;
     unsigned i;
 
     tgsi_scan_shader(tokens, &shader->info);
     r300_shader_read_fs_inputs(&shader->info, &shader->inputs);
 
     wpos = shader->inputs.wpos;
+    face = shader->inputs.face;
 
     /* Setup the compiler. */
     memset(&compiler, 0, sizeof(compiler));
-    rc_init(&compiler.Base);
-    compiler.Base.Debug = DBG_ON(r300, DBG_FP);
+    rc_init(&compiler.Base, &r300->fs_regalloc_state);
+    DBG_ON(r300, DBG_FP) ? compiler.Base.Debug |= RC_DBG_LOG : 0;
+    DBG_ON(r300, DBG_P_STAT) ? compiler.Base.Debug |= RC_DBG_STATS : 0;
 
     compiler.code = &shader->code;
     compiler.state = shader->compare_state;
-    compiler.is_r500 = r300->screen->caps.is_r500;
-    compiler.max_temp_regs = compiler.is_r500 ? 128 : 32;
+    compiler.Base.is_r500 = r300->screen->caps.is_r500;
+    compiler.Base.is_r400 = r300->screen->caps.is_r400;
+    compiler.Base.disable_optimizations = DBG_ON(r300, DBG_NO_OPT);
+    compiler.Base.has_half_swizzles = TRUE;
+    compiler.Base.has_presub = TRUE;
+    compiler.Base.has_omod = TRUE;
+    compiler.Base.max_temp_regs =
+        compiler.Base.is_r500 ? 128 : (compiler.Base.is_r400 ? 64 : 32);
+    compiler.Base.max_constants = compiler.Base.is_r500 ? 256 : 32;
+    compiler.Base.max_alu_insts =
+        (compiler.Base.is_r500 || compiler.Base.is_r400) ? 512 : 64;
+    compiler.Base.max_tex_insts =
+        (compiler.Base.is_r500 || compiler.Base.is_r400) ? 512 : 32;
     compiler.AllocateHwInputs = &allocate_hardware_inputs;
     compiler.UserData = &shader->inputs;
 
     find_output_registers(&compiler, shader);
 
-    if (compiler.Base.Debug) {
-        debug_printf("r300: Initial fragment program\n");
+    shader->write_all =
+          shader->info.properties[TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS];
+
+    if (compiler.Base.Debug & RC_DBG_LOG) {
+        DBG(r300, DBG_FP, "r300: Initial fragment program\n");
         tgsi_dump(tokens, 0);
     }
 
@@ -256,6 +468,18 @@ static void r300_translate_fragment_shader(
 
     r300_tgsi_to_rc(&ttr, tokens);
 
+    if (ttr.error) {
+        fprintf(stderr, "r300 FP: Cannot translate a shader. "
+                "Using a dummy shader instead.\n");
+        r300_dummy_fragment_shader(r300, shader);
+        return;
+    }
+
+    if (!r300->screen->caps.is_r500 ||
+        compiler.Base.Program.Constants.Count > 200) {
+        compiler.Base.remove_unused_constants = TRUE;
+    }
+
     /**
      * Transform the program to support WPOS.
      *
@@ -268,6 +492,10 @@ static void r300_translate_fragment_shader(
         rc_transform_fragment_wpos(&compiler.Base, wpos, wpos, TRUE);
     }
 
+    if (face != ATTR_UNUSED) {
+        rc_transform_fragment_face(&compiler.Base, face);
+    }
+
     /* Invoke the compiler */
     r3xx_compile_fragment_program(&compiler);
 
@@ -286,8 +514,21 @@ static void r300_translate_fragment_shader(
         return;
     }
 
+    /* Shaders with zero instructions are invalid,
+     * use the dummy shader instead. */
+    if (shader->code.code.r500.inst_end == -1) {
+        rc_destroy(&compiler.Base);
+        r300_dummy_fragment_shader(r300, shader);
+        return;
+    }
+
     /* Initialize numbers of constants for each type. */
-    shader->externals_count = ttr.immediate_offset;
+    shader->externals_count = 0;
+    for (i = 0;
+         i < shader->code.constants.Count &&
+         shader->code.constants.Constants[i].Type == RC_CONSTANT_EXTERNAL; i++) {
+        shader->externals_count = i+1;
+    }
     shader->immediates_count = 0;
     shader->rc_state_count = 0;
 
@@ -315,14 +556,18 @@ static void r300_translate_fragment_shader(
 
     /* And, finally... */
     rc_destroy(&compiler.Base);
+
+    /* Build the command buffer. */
+    r300_emit_fs_code_to_buffer(r300, shader);
 }
 
 boolean r300_pick_fragment_shader(struct r300_context* r300)
 {
     struct r300_fragment_shader* fs = r300_fs(r300);
-    struct r300_fragment_program_external_state state = {{{ 0 }}};
+    struct r300_fragment_program_external_state state;
     struct r300_fragment_shader_code* ptr;
 
+    memset(&state, 0, sizeof(state));
     get_external_state(r300, &state);
 
     if (!fs->first) {
@@ -342,8 +587,12 @@ boolean r300_pick_fragment_shader(struct r300_context* r300)
             ptr = fs->first;
             while (ptr) {
                 if (memcmp(&ptr->compare_state, &state, sizeof(state)) == 0) {
-                    fs->shader = ptr;
-                    return TRUE;
+                    if (fs->shader != ptr) {
+                        fs->shader = ptr;
+                        return TRUE;
+                    }
+                    /* The currently-bound one is OK. */
+                    return FALSE;
                 }
                 ptr = ptr->next;
             }