r300-gallium: organize fragment/vertex shaders

Appart from separating r3xx/r5xx fragment shaders, a more consistent
naming scheme has been applied. From now on:
r300 = all chips
r3xx = R300/R400 only
r5xx = R500 only
This way r300_fragment_shader is the master struct, and the structs
r3xx_fragment_shader and r5xx_fragment_shader inherits it.

1 files changed, 96 insertions, 0 deletions

diff --git a/src/gallium/drivers/r300/r3xx_fs.c b/src/gallium/drivers/r300/r3xx_fs.c
new file mode 100644
index 0000000000..6e05d76977
--- /dev/null
+++ b/src/gallium/drivers/r300/r3xx_fs.c
@@ -0,0 +1,96 @@
+/*
+ * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
+ *                Joakim Sindholt <opensource@zhasha.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE. */
+
+#include "r3xx_fs.h"
+
+static INLINE uint32_t r3xx_rgb_op(unsigned op)
+{
+    switch (op) {
+        case TGSI_OPCODE_MOV:
+            return R300_ALU_OUTC_CMP;
+        default:
+            return 0;
+    }
+}
+
+static INLINE uint32_t r3xx_alpha_op(unsigned op)
+{
+    switch (op) {
+        case TGSI_OPCODE_MOV:
+            return R300_ALU_OUTA_CMP;
+        default:
+            return 0;
+    }
+}
+
+static INLINE void r3xx_emit_maths(struct r3xx_fragment_shader* fs,
+                                   struct r300_fs_asm* assembler,
+                                   struct tgsi_full_src_register* src,
+                                   struct tgsi_full_dst_register* dst,
+                                   unsigned op,
+                                   unsigned count)
+{
+    int i = fs->alu_instruction_count;
+
+    fs->instructions[i].alu_rgb_inst = R300_RGB_SWIZA(R300_ALU_ARGC_SRC0C_XYZ) |
+        R300_RGB_SWIZB(R300_ALU_ARGC_SRC0C_XYZ) |
+        R300_RGB_SWIZC(R300_ALU_ARGC_ZERO) |
+        r3xx_rgb_op(op);
+    fs->instructions[i].alu_rgb_addr = R300_RGB_ADDR0(0) | R300_RGB_ADDR1(0) |
+        R300_RGB_ADDR2(0) | R300_ALU_DSTC_OUTPUT_XYZ;
+    fs->instructions[i].alu_alpha_inst = R300_ALPHA_SWIZA(R300_ALU_ARGA_SRC0A) |
+        R300_ALPHA_SWIZB(R300_ALU_ARGA_SRC0A) |
+        R300_ALPHA_SWIZC(R300_ALU_ARGA_ZERO) |
+        r3xx_alpha_op(op);
+    fs->instructions[i].alu_alpha_addr = R300_ALPHA_ADDR0(0) |
+        R300_ALPHA_ADDR1(0) | R300_ALPHA_ADDR2(0) | R300_ALU_DSTA_OUTPUT;
+
+    fs->alu_instruction_count++;
+}
+
+void r3xx_fs_finalize(struct r300_fragment_shader* fs,
+                      struct r300_fs_asm* assembler)
+{
+    fs->stack_size = assembler->temp_count + assembler->temp_offset + 1;
+}
+
+void r3xx_fs_instruction(struct r3xx_fragment_shader* fs,
+                         struct r300_fs_asm* assembler,
+                         struct tgsi_full_instruction* inst)
+{
+    switch (inst->Instruction.Opcode) {
+        case TGSI_OPCODE_MOV:
+            /* src0 -> src1 and src2 forced to zero */
+            inst->FullSrcRegisters[1] = inst->FullSrcRegisters[0];
+            inst->FullSrcRegisters[2] = r300_constant_zero;
+            r3xx_emit_maths(fs, assembler, inst->FullSrcRegisters,
+                    &inst->FullDstRegisters[0], inst->Instruction.Opcode, 3);
+            break;
+        case TGSI_OPCODE_END:
+            break;
+        default:
+            debug_printf("r300: fs: Bad opcode %d\n",
+                    inst->Instruction.Opcode);
+            break;
+    }
+}