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Diffstat (limited to 'src/gallium/drivers/r300/r300_vs.c')
-rw-r--r--src/gallium/drivers/r300/r300_vs.c234
1 files changed, 234 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_vs.c b/src/gallium/drivers/r300/r300_vs.c
new file mode 100644
index 0000000000..2cb903bba2
--- /dev/null
+++ b/src/gallium/drivers/r300/r300_vs.c
@@ -0,0 +1,234 @@
+/*
+ * Copyright 2009 Corbin Simpson <MostAwesomeDude@gmail.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 "r300_vs.h"
+
+#include "r300_context.h"
+#include "r300_tgsi_to_rc.h"
+
+#include "tgsi/tgsi_dump.h"
+#include "tgsi/tgsi_parse.h"
+
+#include "radeon_compiler.h"
+
+
+static void set_vertex_inputs_outputs(struct r300_vertex_program_compiler * c)
+{
+ struct r300_vertex_shader * vs = c->UserData;
+ struct tgsi_shader_info* info = &vs->info;
+ boolean pointsize = false;
+ int out_colors = 0;
+ int colors = 0;
+ int out_generic = 0;
+ int generic = 0;
+ int i;
+
+ /* Fill in the input mapping */
+ for (i = 0; i < info->num_inputs; i++)
+ c->code->inputs[i] = i;
+
+ /* Fill in the output mapping */
+ for (i = 0; i < info->num_outputs; i++) {
+ switch (info->output_semantic_name[i]) {
+ case TGSI_SEMANTIC_PSIZE:
+ pointsize = true;
+ break;
+ case TGSI_SEMANTIC_COLOR:
+ out_colors++;
+ break;
+ case TGSI_SEMANTIC_FOG:
+ case TGSI_SEMANTIC_GENERIC:
+ out_generic++;
+ break;
+ }
+ }
+
+ struct tgsi_parse_context parser;
+
+ tgsi_parse_init(&parser, vs->state.tokens);
+
+ while (!tgsi_parse_end_of_tokens(&parser)) {
+ tgsi_parse_token(&parser);
+
+ if (parser.FullToken.Token.Type != TGSI_TOKEN_TYPE_DECLARATION)
+ continue;
+
+ struct tgsi_full_declaration * decl = &parser.FullToken.FullDeclaration;
+
+ if (decl->Declaration.File != TGSI_FILE_OUTPUT)
+ continue;
+
+ switch (decl->Semantic.SemanticName) {
+ case TGSI_SEMANTIC_POSITION:
+ c->code->outputs[decl->DeclarationRange.First] = 0;
+ break;
+ case TGSI_SEMANTIC_PSIZE:
+ c->code->outputs[decl->DeclarationRange.First] = 1;
+ break;
+ case TGSI_SEMANTIC_COLOR:
+ c->code->outputs[decl->DeclarationRange.First] = 1 +
+ (pointsize ? 1 : 0) +
+ colors++;
+ break;
+ case TGSI_SEMANTIC_FOG:
+ case TGSI_SEMANTIC_GENERIC:
+ c->code->outputs[decl->DeclarationRange.First] = 1 +
+ (pointsize ? 1 : 0) +
+ out_colors +
+ generic++;
+ break;
+ default:
+ debug_printf("r300: vs: Bad semantic declaration %d\n",
+ decl->Semantic.SemanticName);
+ break;
+ }
+ }
+
+ tgsi_parse_free(&parser);
+}
+
+
+void r300_translate_vertex_shader(struct r300_context* r300,
+ struct r300_vertex_shader* vs)
+{
+ struct r300_vertex_program_compiler compiler;
+ struct tgsi_to_rc ttr;
+
+ /* Setup the compiler */
+ rc_init(&compiler.Base);
+
+ compiler.Base.Debug = 1;
+ compiler.code = &vs->code;
+ compiler.UserData = vs;
+
+ if (compiler.Base.Debug) {
+ debug_printf("r300: Initial vertex program\n");
+ tgsi_dump(vs->state.tokens, 0);
+ }
+
+ /* Translate TGSI to our internal representation */
+ ttr.compiler = &compiler.Base;
+ ttr.info = &vs->info;
+
+ r300_tgsi_to_rc(&ttr, vs->state.tokens);
+
+ compiler.RequiredOutputs = ~(~0 << vs->info.num_outputs);
+ compiler.SetHwInputOutput = &set_vertex_inputs_outputs;
+
+ /* Invoke the compiler */
+ r3xx_compile_vertex_program(&compiler);
+ if (compiler.Base.Error) {
+ /* Todo: Fail gracefully */
+ fprintf(stderr, "r300 VP: Compiler error\n");
+ abort();
+ }
+
+ /* And, finally... */
+ rc_destroy(&compiler.Base);
+ vs->translated = TRUE;
+}
+
+
+/* XXX get these to r300_reg */
+#define R300_PVS_DST_OPCODE(x) ((x) << 0)
+# define R300_VE_DOT_PRODUCT 1
+# define R300_VE_MULTIPLY 2
+# define R300_VE_ADD 3
+# define R300_VE_MAXIMUM 7
+# define R300_VE_SET_LESS_THAN 10
+#define R300_PVS_DST_MATH_INST (1 << 6)
+# define R300_ME_RECIP_DX 6
+#define R300_PVS_DST_MACRO_INST (1 << 7)
+# define R300_PVS_MACRO_OP_2CLK_MADD 0
+#define R300_PVS_DST_REG_TYPE(x) ((x) << 8)
+# define R300_PVS_DST_REG_TEMPORARY 0
+# define R300_PVS_DST_REG_A0 1
+# define R300_PVS_DST_REG_OUT 2
+# define R300_PVS_DST_REG_OUT_REPL_X 3
+# define R300_PVS_DST_REG_ALT_TEMPORARY 4
+# define R300_PVS_DST_REG_INPUT 5
+#define R300_PVS_DST_OFFSET(x) ((x) << 13)
+#define R300_PVS_DST_WE(x) ((x) << 20)
+#define R300_PVS_DST_WE_XYZW (0xf << 20)
+
+#define R300_PVS_SRC_REG_TYPE(x) ((x) << 0)
+# define R300_PVS_SRC_REG_TEMPORARY 0
+# define R300_PVS_SRC_REG_INPUT 1
+# define R300_PVS_SRC_REG_CONSTANT 2
+# define R300_PVS_SRC_REG_ALT_TEMPORARY 3
+#define R300_PVS_SRC_OFFSET(x) ((x) << 5)
+#define R300_PVS_SRC_SWIZZLE(x) ((x) << 13)
+# define R300_PVS_SRC_SELECT_X 0
+# define R300_PVS_SRC_SELECT_Y 1
+# define R300_PVS_SRC_SELECT_Z 2
+# define R300_PVS_SRC_SELECT_W 3
+# define R300_PVS_SRC_SELECT_FORCE_0 4
+# define R300_PVS_SRC_SELECT_FORCE_1 5
+# define R300_PVS_SRC_SWIZZLE_XYZW \
+ ((R300_PVS_SRC_SELECT_X | (R300_PVS_SRC_SELECT_Y << 3) | \
+ (R300_PVS_SRC_SELECT_Z << 6) | (R300_PVS_SRC_SELECT_W << 9)) << 13)
+# define R300_PVS_SRC_SWIZZLE_ZERO \
+ ((R300_PVS_SRC_SELECT_FORCE_0 | (R300_PVS_SRC_SELECT_FORCE_0 << 3) | \
+ (R300_PVS_SRC_SELECT_FORCE_0 << 6) | \
+ (R300_PVS_SRC_SELECT_FORCE_0 << 9)) << 13)
+# define R300_PVS_SRC_SWIZZLE_ONE \
+ ((R300_PVS_SRC_SELECT_FORCE_1 | (R300_PVS_SRC_SELECT_FORCE_1 << 3) | \
+ (R300_PVS_SRC_SELECT_FORCE_1 << 6) | \
+ (R300_PVS_SRC_SELECT_FORCE_1 << 9)) << 13)
+#define R300_PVS_MODIFIER_X (1 << 25)
+#define R300_PVS_MODIFIER_Y (1 << 26)
+#define R300_PVS_MODIFIER_Z (1 << 27)
+#define R300_PVS_MODIFIER_W (1 << 28)
+#define R300_PVS_NEGATE_XYZW \
+ (R300_PVS_MODIFIER_X | R300_PVS_MODIFIER_Y | \
+ R300_PVS_MODIFIER_Z | R300_PVS_MODIFIER_W)
+
+struct r300_vertex_program_code r300_passthrough_vertex_shader = {
+ .length = 8, /* two instructions */
+
+ /* MOV out[0], in[0] */
+ .body.d[0] = R300_PVS_DST_OPCODE(R300_VE_ADD) |
+ R300_PVS_DST_REG_TYPE(R300_PVS_DST_REG_OUT) |
+ R300_PVS_DST_OFFSET(0) | R300_PVS_DST_WE_XYZW,
+ .body.d[1] = R300_PVS_SRC_REG_TYPE(R300_PVS_SRC_REG_INPUT) |
+ R300_PVS_SRC_OFFSET(0) | R300_PVS_SRC_SWIZZLE_XYZW,
+ .body.d[2] = R300_PVS_SRC_SWIZZLE_ZERO,
+ .body.d[3] = 0x0,
+
+ /* MOV out[1], in[1] */
+ .body.d[4] = R300_PVS_DST_OPCODE(R300_VE_ADD) |
+ R300_PVS_DST_REG_TYPE(R300_PVS_DST_REG_OUT) |
+ R300_PVS_DST_OFFSET(1) | R300_PVS_DST_WE_XYZW,
+ .body.d[5] = R300_PVS_SRC_REG_TYPE(R300_PVS_SRC_REG_INPUT) |
+ R300_PVS_SRC_OFFSET(1) | R300_PVS_SRC_SWIZZLE_XYZW,
+ .body.d[6] = R300_PVS_SRC_SWIZZLE_ZERO,
+ .body.d[7] = 0x0,
+
+ .inputs[0] = 0,
+ .inputs[1] = 1,
+ .outputs[0] = 0,
+ .outputs[1] = 1,
+
+ .InputsRead = 3,
+ .OutputsWritten = 3
+};
+
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