diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_state_shader.h')
| -rw-r--r-- | src/gallium/drivers/r300/r300_state_shader.h | 133 |
1 files changed, 131 insertions, 2 deletions
diff --git a/src/gallium/drivers/r300/r300_state_shader.h b/src/gallium/drivers/r300/r300_state_shader.h index a20bd4276c..06c0bb7378 100644 --- a/src/gallium/drivers/r300/r300_state_shader.h +++ b/src/gallium/drivers/r300/r300_state_shader.h @@ -23,13 +23,142 @@ #ifndef R300_STATE_SHADER_H #define R300_STATE_SHADER_H +#include "tgsi/tgsi_parse.h" + #include "r300_context.h" +#include "r300_debug.h" +#include "r300_reg.h" #include "r300_screen.h" -void r300_translate_shader(struct r300_context* r300, +/* XXX this all should find its way back to r300_reg */ +/* Swizzle tools */ +#define R500_SWIZZLE_ZERO 4 +#define R500_SWIZZLE_HALF 5 +#define R500_SWIZZLE_ONE 6 +#define R500_SWIZ_RGB_ZERO ((4 << 0) | (4 << 3) | (4 << 6)) +#define R500_SWIZ_RGB_ONE ((6 << 0) | (6 << 3) | (6 << 6)) +#define R500_SWIZ_RGB_RGB ((0 << 0) | (1 << 3) | (2 << 6)) +#define R500_SWIZ_MOD_NEG 1 +#define R500_SWIZ_MOD_ABS 2 +#define R500_SWIZ_MOD_NEG_ABS 3 +/* Swizzles for inst2 */ +#define R500_SWIZ_TEX_STRQ(x) ((x) << 8) +#define R500_SWIZ_TEX_RGBA(x) ((x) << 24) +/* Swizzles for inst3 */ +#define R500_SWIZ_RGB_A(x) ((x) << 2) +#define R500_SWIZ_RGB_B(x) ((x) << 15) +/* Swizzles for inst4 */ +#define R500_SWIZ_ALPHA_A(x) ((x) << 14) +#define R500_SWIZ_ALPHA_B(x) ((x) << 21) +/* Swizzle for inst5 */ +#define R500_SWIZ_RGBA_C(x) ((x) << 14) +#define R500_SWIZ_ALPHA_C(x) ((x) << 27) +/* Writemasks */ +#define R500_TEX_WMASK(x) ((x) << 11) +#define R500_ALU_WMASK(x) ((x) << 11) +#define R500_ALU_OMASK(x) ((x) << 15) + +/* TGSI constants. TGSI is like XML: If it can't solve your problems, you're + * not using enough of it. */ +static const struct tgsi_full_src_register r500_constant_zero = { + .SrcRegister.Extended = TRUE, + .SrcRegister.File = TGSI_FILE_NULL, + .SrcRegisterExtSwz.ExtSwizzleX = TGSI_EXTSWIZZLE_ZERO, + .SrcRegisterExtSwz.ExtSwizzleY = TGSI_EXTSWIZZLE_ZERO, + .SrcRegisterExtSwz.ExtSwizzleZ = TGSI_EXTSWIZZLE_ZERO, + .SrcRegisterExtSwz.ExtSwizzleW = TGSI_EXTSWIZZLE_ZERO, +}; + +static const struct tgsi_full_src_register r500_constant_one = { + .SrcRegister.Extended = TRUE, + .SrcRegister.File = TGSI_FILE_NULL, + .SrcRegisterExtSwz.ExtSwizzleX = TGSI_EXTSWIZZLE_ONE, + .SrcRegisterExtSwz.ExtSwizzleY = TGSI_EXTSWIZZLE_ONE, + .SrcRegisterExtSwz.ExtSwizzleZ = TGSI_EXTSWIZZLE_ONE, + .SrcRegisterExtSwz.ExtSwizzleW = TGSI_EXTSWIZZLE_ONE, +}; + +/* Temporary struct used to hold assembly state while putting together + * fragment programs. */ +struct r300_fs_asm { + /* Pipe context. */ + struct r300_context* r300; + /* Number of colors. */ + unsigned color_count; + /* Number of texcoords. */ + unsigned tex_count; + /* Offset for temporary registers. Inputs and temporaries have no + * distinguishing markings, so inputs start at 0 and the first usable + * temporary register is after all inputs. */ + unsigned temp_offset; + /* Number of requested temporary registers. */ + unsigned temp_count; + /* Offset for immediate constants. Neither R300 nor R500 can do four + * inline constants per source, so instead we copy immediates into the + * constant buffer. */ + unsigned imm_offset; + /* Number of immediate constants. */ + unsigned imm_count; +}; + +void r300_translate_fragment_shader(struct r300_context* r300, struct r300_fragment_shader* fs); -void r500_translate_shader(struct r300_context* r300, +void r500_translate_fragment_shader(struct r300_context* r300, struct r500_fragment_shader* fs); +static const struct r300_fragment_shader r300_passthrough_fragment_shader = { + /* XXX This is the emission code. TODO: decode + OUT_CS_REG(R300_US_CONFIG, 0); + OUT_CS_REG(R300_US_CODE_OFFSET, 0x0); + OUT_CS_REG(R300_US_CODE_ADDR_0, 0x0); + OUT_CS_REG(R300_US_CODE_ADDR_1, 0x0); + OUT_CS_REG(R300_US_CODE_ADDR_2, 0x0); + OUT_CS_REG(R300_US_CODE_ADDR_3, 0x400000); +*/ + .alu_instruction_count = 1, + .tex_instruction_count = 0, + .indirections = 1, + .shader.stack_size = 2, + + .instructions[0].alu_rgb_inst = R300_RGB_SWIZA(R300_ALU_ARGC_SRC0C_XYZ) | + R300_RGB_SWIZB(R300_ALU_ARGC_ONE) | + R300_RGB_SWIZC(R300_ALU_ARGC_ZERO) | + R300_ALU_OUTC_MAD, + .instructions[0].alu_rgb_addr = R300_RGB_ADDR0(0) | R300_RGB_ADDR1(0) | + R300_RGB_ADDR2(0) | R300_ALU_DSTC_OUTPUT_XYZ, + .instructions[0].alu_alpha_inst = R300_ALPHA_SWIZA(R300_ALU_ARGA_SRC0A) | + R300_ALPHA_SWIZB(R300_ALU_ARGA_ONE) | + R300_ALPHA_SWIZC(R300_ALU_ARGA_ZERO) | + R300_ALU_OUTA_MAD, + .instructions[0].alu_alpha_addr = R300_ALPHA_ADDR0(0) | + R300_ALPHA_ADDR1(0) | R300_ALPHA_ADDR2(0) | R300_ALU_DSTA_OUTPUT, +}; + +static const struct r500_fragment_shader r500_passthrough_fragment_shader = { + .shader.stack_size = 0, + .instruction_count = 1, + .instructions[0].inst0 = R500_INST_TYPE_OUT | + R500_INST_TEX_SEM_WAIT | R500_INST_LAST | + R500_INST_RGB_OMASK_RGB | R500_INST_ALPHA_OMASK | + R500_INST_RGB_CLAMP | R500_INST_ALPHA_CLAMP, + .instructions[0].inst1 = + R500_RGB_ADDR0(0) | R500_RGB_ADDR1(0) | R500_RGB_ADDR1_CONST | + R500_RGB_ADDR2(0) | R500_RGB_ADDR2_CONST, + .instructions[0].inst2 = + R500_ALPHA_ADDR0(0) | R500_ALPHA_ADDR1(0) | R500_ALPHA_ADDR1_CONST | + R500_ALPHA_ADDR2(0) | R500_ALPHA_ADDR2_CONST, + .instructions[0].inst3 = + R500_ALU_RGB_SEL_A_SRC0 | R500_ALU_RGB_R_SWIZ_A_R | + R500_ALU_RGB_G_SWIZ_A_G | R500_ALU_RGB_B_SWIZ_A_B | + R500_ALU_RGB_SEL_B_SRC0 | R500_ALU_RGB_R_SWIZ_B_R | + R500_ALU_RGB_B_SWIZ_B_G | R500_ALU_RGB_G_SWIZ_B_B, + .instructions[0].inst4 = + R500_ALPHA_OP_CMP | R500_ALPHA_SWIZ_A_A | R500_ALPHA_SWIZ_B_A, + .instructions[0].inst5 = + R500_ALU_RGBA_OP_CMP | R500_ALU_RGBA_R_SWIZ_0 | + R500_ALU_RGBA_G_SWIZ_0 | R500_ALU_RGBA_B_SWIZ_0 | + R500_ALU_RGBA_A_SWIZ_0, +}; + #endif /* R300_STATE_SHADER_H */ |