diff options
| -rw-r--r-- | src/mesa/drivers/dri/r300/r300_context.h | 2 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/r300/r300_reg.h | 8 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/r300/r300_state.c | 10 |
3 files changed, 11 insertions, 9 deletions
diff --git a/src/mesa/drivers/dri/r300/r300_context.h b/src/mesa/drivers/dri/r300/r300_context.h index c150053d873..44f02229b38 100644 --- a/src/mesa/drivers/dri/r300/r300_context.h +++ b/src/mesa/drivers/dri/r300/r300_context.h @@ -588,7 +588,7 @@ struct r300_vertex_shader_state { struct r300_vertex_shader_fragment unknown2; int program_start; - int unknown_ptr1; /* pointer within program space */ + int program_pos_end; int program_end; int param_offset; diff --git a/src/mesa/drivers/dri/r300/r300_reg.h b/src/mesa/drivers/dri/r300/r300_reg.h index 3ce09c16d3f..e59919be493 100644 --- a/src/mesa/drivers/dri/r300/r300_reg.h +++ b/src/mesa/drivers/dri/r300/r300_reg.h @@ -336,13 +336,15 @@ USE OR OTHER DEALINGS IN THE SOFTWARE. * The meaning of the two UNKNOWN fields is obviously not known. However, * experiments so far have shown that both *must* point to an instruction * inside the vertex program, otherwise the GPU locks up. + * * fglrx usually sets CNTL_3_UNKNOWN to the end of the program and - * CNTL_1_UNKNOWN points to instruction where last write to position takes - * place. + * R300_PVS_CNTL_1_POS_END_SHIFT points to instruction where last write to + * position takes place. + * * Most likely this is used to ignore rest of the program in cases * where group of verts arent visible. For some reason this "section" * is sometimes accepted other instruction that have no relationship with - *position calculations. + * position calculations. */ #define R300_VAP_PVS_CNTL_1 0x22D0 # define R300_PVS_CNTL_1_PROGRAM_START_SHIFT 0 diff --git a/src/mesa/drivers/dri/r300/r300_state.c b/src/mesa/drivers/dri/r300/r300_state.c index c37964957a4..8d08279b3a8 100644 --- a/src/mesa/drivers/dri/r300/r300_state.c +++ b/src/mesa/drivers/dri/r300/r300_state.c @@ -1531,7 +1531,7 @@ static void r300GenerateSimpleVertexShader(r300ContextPtr r300) r300->state.vertex_shader.param_count = 0x4; /* 4 vector values - 4x4 matrix */ r300->state.vertex_shader.program_start = 0x0; - r300->state.vertex_shader.unknown_ptr1 = 0x4; /* magic value ? */ + r300->state.vertex_shader.program_pos_end = 0x4; r300->state.vertex_shader.program_end = 0x0; r300->state.vertex_shader.unknown_ptr2 = 0x0; /* magic value */ @@ -1563,7 +1563,7 @@ static void r300GenerateSimpleVertexShader(r300ContextPtr r300) r300->state.vertex_shader.program.length = (r300->state.vertex_shader.program_end + 1) * 4; - r300->state.vertex_shader.unknown_ptr1 = r300->state.vertex_shader.program_end; /* magic value ? */ + r300->state.vertex_shader.program_pos_end = r300->state.vertex_shader.program_end; r300->state.vertex_shader.unknown_ptr2 = r300->state.vertex_shader.program_end; /* magic value ? */ r300->state.vertex_shader.unknown_ptr3 = r300->state.vertex_shader.program_end; /* magic value ? */ @@ -1607,7 +1607,7 @@ static void r300SetupVertexProgram(r300ContextPtr rmesa) (param_count << R300_PVS_CNTL_2_PARAM_COUNT_SHIFT); rmesa->hw.pvs.cmd[R300_PVS_CNTL_3] = (0 << R300_PVS_CNTL_3_PROGRAM_UNKNOWN_SHIFT) | - (inst_count << 0); + (inst_count << R300_PVS_CNTL_3_PROGRAM_UNKNOWN2_SHIFT); /* This is done for vertex shader fragments, but also needs to be done for vap_pvs, so I leave it as a reminder */ @@ -1648,14 +1648,14 @@ static void r300SetupVertexShader(r300ContextPtr rmesa) R300_STATECHANGE(rmesa, pvs); rmesa->hw.pvs.cmd[R300_PVS_CNTL_1] = (rmesa->state.vertex_shader.program_start << R300_PVS_CNTL_1_PROGRAM_START_SHIFT) | - (rmesa->state.vertex_shader.unknown_ptr1 << R300_PVS_CNTL_1_POS_END_SHIFT) | + (rmesa->state.vertex_shader.program_pos_end << R300_PVS_CNTL_1_POS_END_SHIFT) | (rmesa->state.vertex_shader.program_end << R300_PVS_CNTL_1_PROGRAM_END_SHIFT); rmesa->hw.pvs.cmd[R300_PVS_CNTL_2] = (rmesa->state.vertex_shader.param_offset << R300_PVS_CNTL_2_PARAM_OFFSET_SHIFT) | (rmesa->state.vertex_shader.param_count << R300_PVS_CNTL_2_PARAM_COUNT_SHIFT); rmesa->hw.pvs.cmd[R300_PVS_CNTL_3] = (rmesa->state.vertex_shader.unknown_ptr2 << R300_PVS_CNTL_3_PROGRAM_UNKNOWN_SHIFT) | - (rmesa->state.vertex_shader.unknown_ptr3 << 0); + (rmesa->state.vertex_shader.unknown_ptr3 << R300_PVS_CNTL_3_PROGRAM_UNKNOWN2_SHIFT); /* This is done for vertex shader fragments, but also needs to be done for vap_pvs, so I leave it as a reminder */ |