aboutsummaryrefslogtreecommitdiffstats
path: root/src/gallium/drivers/nvfx/nv30_vertprog.h
diff options
context:
space:
mode:
authorYounes Manton <[email protected]>2010-04-30 20:42:30 -0400
committerYounes Manton <[email protected]>2010-04-30 20:42:30 -0400
commita8ea1dacc63ac567498049e5756c247b9fec6cd9 (patch)
tree4031e2e2b6166bd926b43fa4bbb3aab773a30ee5 /src/gallium/drivers/nvfx/nv30_vertprog.h
parent404fb63b4649f58fce443615e49337d42b8ddece (diff)
parent35d960cc744c374ccaad48c3d80559b59c74e28a (diff)
Merge branch 'master' of ssh://git.freedesktop.org/git/mesa/mesa into pipe-video
Conflicts: src/gallium/auxiliary/Makefile src/gallium/auxiliary/SConscript src/gallium/auxiliary/util/u_format.csv src/gallium/auxiliary/vl/vl_compositor.c src/gallium/auxiliary/vl/vl_compositor.h src/gallium/auxiliary/vl/vl_mpeg12_mc_renderer.c src/gallium/auxiliary/vl/vl_mpeg12_mc_renderer.h src/gallium/drivers/identity/id_objects.c src/gallium/drivers/identity/id_objects.h src/gallium/drivers/identity/id_screen.c src/gallium/drivers/nv40/Makefile src/gallium/drivers/nv40/nv40_screen.c src/gallium/drivers/softpipe/sp_texture.c src/gallium/drivers/softpipe/sp_texture.h src/gallium/drivers/softpipe/sp_video_context.c src/gallium/drivers/softpipe/sp_video_context.h src/gallium/include/pipe/p_format.h src/gallium/include/pipe/p_screen.h src/gallium/include/pipe/p_video_context.h src/gallium/include/pipe/p_video_state.h src/gallium/include/state_tracker/dri1_api.h src/gallium/include/state_tracker/drm_api.h src/gallium/state_trackers/dri/common/dri_context.c src/gallium/state_trackers/xorg/xvmc/attributes.c src/gallium/state_trackers/xorg/xvmc/block.c src/gallium/state_trackers/xorg/xvmc/context.c src/gallium/state_trackers/xorg/xvmc/subpicture.c src/gallium/state_trackers/xorg/xvmc/surface.c src/gallium/state_trackers/xorg/xvmc/tests/.gitignore src/gallium/state_trackers/xorg/xvmc/tests/Makefile src/gallium/state_trackers/xorg/xvmc/xvmc_private.h src/gallium/winsys/drm/radeon/core/radeon_drm.c src/gallium/winsys/g3dvl/vl_winsys.h src/gallium/winsys/g3dvl/xlib/xsp_winsys.c src/gallium/winsys/sw/Makefile
Diffstat (limited to 'src/gallium/drivers/nvfx/nv30_vertprog.h')
-rw-r--r--src/gallium/drivers/nvfx/nv30_vertprog.h169
1 files changed, 169 insertions, 0 deletions
diff --git a/src/gallium/drivers/nvfx/nv30_vertprog.h b/src/gallium/drivers/nvfx/nv30_vertprog.h
new file mode 100644
index 00000000000..ec0444c07f8
--- /dev/null
+++ b/src/gallium/drivers/nvfx/nv30_vertprog.h
@@ -0,0 +1,169 @@
+#ifndef __NV30_SHADER_H__
+#define __NV30_SHADER_H__
+
+/* Vertex programs instruction set
+ *
+ * 128bit opcodes, split into 4 32-bit ones for ease of use.
+ *
+ * Non-native instructions
+ * ABS - MOV + NV40_VP_INST0_DEST_ABS
+ * POW - EX2 + MUL + LG2
+ * SUB - ADD, second source negated
+ * SWZ - MOV
+ * XPD -
+ *
+ * Register access
+ * - Only one INPUT can be accessed per-instruction (move extras into TEMPs)
+ * - Only one CONST can be accessed per-instruction (move extras into TEMPs)
+ *
+ * Relative Addressing
+ * According to the value returned for
+ * MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB
+ *
+ * there are only two address registers available. The destination in the
+ * ARL instruction is set to TEMP <n> (The temp isn't actually written).
+ *
+ * When using vanilla ARB_v_p, the proprietary driver will squish both the
+ * available ADDRESS regs into the first hardware reg in the X and Y
+ * components.
+ *
+ * To use an address reg as an index into consts, the CONST_SRC is set to
+ * (const_base + offset) and INDEX_CONST is set.
+ *
+ * To access the second address reg use ADDR_REG_SELECT_1. A particular
+ * component of the address regs is selected with ADDR_SWZ.
+ *
+ * Only one address register can be accessed per instruction.
+ *
+ * Conditional execution (see NV_vertex_program{2,3} for details) Conditional
+ * execution of an instruction is enabled by setting COND_TEST_ENABLE, and
+ * selecting the condition which will allow the test to pass with
+ * COND_{FL,LT,...}. It is possible to swizzle the values in the condition
+ * register, which allows for testing against an individual component.
+ *
+ * Branching:
+ *
+ * The BRA/CAL instructions seem to follow a slightly different opcode
+ * layout. The destination instruction ID (IADDR) overlaps a source field.
+ * Instruction ID's seem to be numbered based on the UPLOAD_FROM_ID FIFO
+ * command, and is incremented automatically on each UPLOAD_INST FIFO
+ * command.
+ *
+ * Conditional branching is achieved by using the condition tests described
+ * above. There doesn't appear to be dedicated looping instructions, but
+ * this can be done using a temp reg + conditional branching.
+ *
+ * Subroutines may be uploaded before the main program itself, but the first
+ * executed instruction is determined by the PROGRAM_START_ID FIFO command.
+ *
+ */
+
+/* DWORD 0 */
+
+#define NV30_VP_INST_ADDR_REG_SELECT_1 (1 << 24)
+#define NV30_VP_INST_SRC2_ABS (1 << 23) /* guess */
+#define NV30_VP_INST_SRC1_ABS (1 << 22) /* guess */
+#define NV30_VP_INST_SRC0_ABS (1 << 21) /* guess */
+#define NV30_VP_INST_VEC_RESULT (1 << 20)
+#define NV30_VP_INST_DEST_TEMP_ID_SHIFT 16
+#define NV30_VP_INST_DEST_TEMP_ID_MASK (0x0F << 16)
+#define NV30_VP_INST_COND_UPDATE_ENABLE (1<<15)
+#define NV30_VP_INST_VEC_DEST_TEMP_MASK (0xF << 16)
+#define NV30_VP_INST_COND_TEST_ENABLE (1<<14)
+#define NV30_VP_INST_COND_SHIFT 11
+#define NV30_VP_INST_COND_MASK (0x07 << 11)
+#define NV30_VP_INST_COND_SWZ_X_SHIFT 9
+#define NV30_VP_INST_COND_SWZ_X_MASK (0x03 << 9)
+#define NV30_VP_INST_COND_SWZ_Y_SHIFT 7
+#define NV30_VP_INST_COND_SWZ_Y_MASK (0x03 << 7)
+#define NV30_VP_INST_COND_SWZ_Z_SHIFT 5
+#define NV30_VP_INST_COND_SWZ_Z_MASK (0x03 << 5)
+#define NV30_VP_INST_COND_SWZ_W_SHIFT 3
+#define NV30_VP_INST_COND_SWZ_W_MASK (0x03 << 3)
+#define NV30_VP_INST_COND_SWZ_ALL_SHIFT 3
+#define NV30_VP_INST_COND_SWZ_ALL_MASK (0xFF << 3)
+#define NV30_VP_INST_ADDR_SWZ_SHIFT 1
+#define NV30_VP_INST_ADDR_SWZ_MASK (0x03 << 1)
+#define NV30_VP_INST_SCA_OPCODEH_SHIFT 0
+#define NV30_VP_INST_SCA_OPCODEH_MASK (0x01 << 0)
+
+/* DWORD 1 */
+#define NV30_VP_INST_SCA_OPCODEL_SHIFT 28
+#define NV30_VP_INST_SCA_OPCODEL_MASK (0x0F << 28)
+#define NV30_VP_INST_VEC_OPCODE_SHIFT 23
+#define NV30_VP_INST_VEC_OPCODE_MASK (0x1F << 23)
+#define NV30_VP_INST_CONST_SRC_SHIFT 14
+#define NV30_VP_INST_CONST_SRC_MASK (0xFF << 14)
+#define NV30_VP_INST_INPUT_SRC_SHIFT 9 /*NV20*/
+#define NV30_VP_INST_INPUT_SRC_MASK (0x0F << 9) /*NV20*/
+#define NV30_VP_INST_SRC0H_SHIFT 0 /*NV20*/
+#define NV30_VP_INST_SRC0H_MASK (0x1FF << 0) /*NV20*/
+
+/* Please note: the IADDR fields overlap other fields because they are used
+ * only for branch instructions. See Branching: label above
+ *
+ * DWORD 2
+ */
+#define NV30_VP_INST_SRC0L_SHIFT 26 /*NV20*/
+#define NV30_VP_INST_SRC0L_MASK (0x3F <<26) /* NV30_VP_SRC0_LOW_MASK << 26 */
+#define NV30_VP_INST_SRC1_SHIFT 11 /*NV20*/
+#define NV30_VP_INST_SRC1_MASK (0x7FFF<<11) /*NV20*/
+#define NV30_VP_INST_SRC2H_SHIFT 0 /*NV20*/
+#define NV30_VP_INST_SRC2H_MASK (0x7FF << 0) /* NV30_VP_SRC2_HIGH_MASK >> 4*/
+#define NV30_VP_INST_IADDR_SHIFT 2
+#define NV30_VP_INST_IADDR_MASK (0xF << 28) /* NV30_VP_SRC2_LOW_MASK << 28 */
+
+/* DWORD 3 */
+#define NV30_VP_INST_SRC2L_SHIFT 28 /*NV20*/
+#define NV30_VP_INST_SRC2L_MASK (0x0F <<28) /*NV20*/
+#define NV30_VP_INST_STEMP_WRITEMASK_SHIFT 24
+#define NV30_VP_INST_STEMP_WRITEMASK_MASK (0x0F << 24)
+#define NV30_VP_INST_VTEMP_WRITEMASK_SHIFT 20
+#define NV30_VP_INST_VTEMP_WRITEMASK_MASK (0x0F << 20)
+#define NV30_VP_INST_SDEST_WRITEMASK_SHIFT 16
+#define NV30_VP_INST_SDEST_WRITEMASK_MASK (0x0F << 16)
+#define NV30_VP_INST_VDEST_WRITEMASK_SHIFT 12 /*NV20*/
+#define NV30_VP_INST_VDEST_WRITEMASK_MASK (0x0F << 12) /*NV20*/
+#define NV30_VP_INST_DEST_SHIFT 2
+#define NV30_VP_INST_DEST_MASK (0x0F << 2)
+# define NV30_VP_INST_DEST_POS 0
+# define NV30_VP_INST_DEST_BFC0 1
+# define NV30_VP_INST_DEST_BFC1 2
+# define NV30_VP_INST_DEST_COL0 3
+# define NV30_VP_INST_DEST_COL1 4
+# define NV30_VP_INST_DEST_FOGC 5
+# define NV30_VP_INST_DEST_PSZ 6
+# define NV30_VP_INST_DEST_TC(n) (8+n)
+
+/* Useful to split the source selection regs into their pieces */
+#define NV30_VP_SRC0_HIGH_SHIFT 6
+#define NV30_VP_SRC0_HIGH_MASK 0x00007FC0
+#define NV30_VP_SRC0_LOW_MASK 0x0000003F
+#define NV30_VP_SRC2_HIGH_SHIFT 4
+#define NV30_VP_SRC2_HIGH_MASK 0x00007FF0
+#define NV30_VP_SRC2_LOW_MASK 0x0000000F
+
+
+/* Source-register definition - matches NV20 exactly */
+#define NV30_VP_SRC_NEGATE (1<<14)
+#define NV30_VP_SRC_SWZ_X_SHIFT 12
+#define NV30_VP_SRC_REG_SWZ_X_MASK (0x03 <<12)
+#define NV30_VP_SRC_SWZ_Y_SHIFT 10
+#define NV30_VP_SRC_REG_SWZ_Y_MASK (0x03 <<10)
+#define NV30_VP_SRC_SWZ_Z_SHIFT 8
+#define NV30_VP_SRC_REG_SWZ_Z_MASK (0x03 << 8)
+#define NV30_VP_SRC_SWZ_W_SHIFT 6
+#define NV30_VP_SRC_REG_SWZ_W_MASK (0x03 << 6)
+#define NV30_VP_SRC_REG_SWZ_ALL_SHIFT 6
+#define NV30_VP_SRC_REG_SWZ_ALL_MASK (0xFF << 6)
+#define NV30_VP_SRC_TEMP_SRC_SHIFT 2
+#define NV30_VP_SRC_REG_TEMP_ID_MASK (0x0F << 0)
+#define NV30_VP_SRC_REG_TYPE_SHIFT 0
+#define NV30_VP_SRC_REG_TYPE_MASK (0x03 << 0)
+#define NV30_VP_SRC_REG_TYPE_TEMP 1
+#define NV30_VP_SRC_REG_TYPE_INPUT 2
+#define NV30_VP_SRC_REG_TYPE_CONST 3 /* guess */
+
+#include "nvfx_shader.h"
+
+#endif