From ab7098c8dfeb0c6de508b02a34c592aa4e343dff Mon Sep 17 00:00:00 2001 From: Ian Romanick Date: Tue, 15 Jul 2014 19:59:18 -0700 Subject: [PATCH] glsl: Correctly load columns of a row-major matrix For a row-major matrix, the next column starts at the next element. Fixes gles3conform failures in: ES3-CTS.shaders.uniform_block.single_basic_array.shared.row_major_mat2 ES3-CTS.shaders.uniform_block.single_basic_array.shared.row_major_mat3 ES3-CTS.shaders.uniform_block.single_basic_array.shared.row_major_mat4 ES3-CTS.shaders.uniform_block.single_basic_array.shared.row_major_mat2x3 ES3-CTS.shaders.uniform_block.single_basic_array.shared.row_major_mat2x4 ES3-CTS.shaders.uniform_block.single_basic_array.shared.row_major_mat3x2 ES3-CTS.shaders.uniform_block.single_basic_array.shared.row_major_mat3x4 ES3-CTS.shaders.uniform_block.single_basic_array.shared.row_major_mat4x2 ES3-CTS.shaders.uniform_block.single_basic_array.shared.row_major_mat4x3 ES3-CTS.shaders.uniform_block.single_basic_array.packed.row_major_mat2 ES3-CTS.shaders.uniform_block.single_basic_array.packed.row_major_mat3 ES3-CTS.shaders.uniform_block.single_basic_array.packed.row_major_mat4 ES3-CTS.shaders.uniform_block.single_basic_array.packed.row_major_mat2x3 ES3-CTS.shaders.uniform_block.single_basic_array.packed.row_major_mat2x4 ES3-CTS.shaders.uniform_block.single_basic_array.packed.row_major_mat3x2 ES3-CTS.shaders.uniform_block.single_basic_array.packed.row_major_mat3x4 ES3-CTS.shaders.uniform_block.single_basic_array.packed.row_major_mat4x2 ES3-CTS.shaders.uniform_block.single_basic_array.packed.row_major_mat4x3 ES3-CTS.shaders.uniform_block.single_basic_array.std140.row_major_mat2 ES3-CTS.shaders.uniform_block.single_basic_array.std140.row_major_mat3 ES3-CTS.shaders.uniform_block.single_basic_array.std140.row_major_mat4 ES3-CTS.shaders.uniform_block.single_basic_array.std140.row_major_mat2x3 ES3-CTS.shaders.uniform_block.single_basic_array.std140.row_major_mat2x4 ES3-CTS.shaders.uniform_block.single_basic_array.std140.row_major_mat3x2 ES3-CTS.shaders.uniform_block.single_basic_array.std140.row_major_mat3x4 ES3-CTS.shaders.uniform_block.single_basic_array.std140.row_major_mat4x2 ES3-CTS.shaders.uniform_block.single_basic_array.std140.row_major_mat4x3 ES3-CTS.shaders.uniform_block.random.all_per_block_buffers.9 Signed-off-by: Ian Romanick Reviewed-by: Matt Turner --- src/glsl/lower_ubo_reference.cpp | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/src/glsl/lower_ubo_reference.cpp b/src/glsl/lower_ubo_reference.cpp index 60094f13a18..2890d3e74d8 100644 --- a/src/glsl/lower_ubo_reference.cpp +++ b/src/glsl/lower_ubo_reference.cpp @@ -355,10 +355,17 @@ lower_ubo_reference_visitor::emit_ubo_loads(ir_dereference *deref, new(mem_ctx) ir_dereference_array(deref->clone(mem_ctx, NULL), col); - /* std140 always rounds the stride of arrays (and matrices) - * to a vec4, so matrices are always 16 between columns/rows. - */ - emit_ubo_loads(col_deref, base_offset, deref_offset + i * 16); + if (ubo_var->RowMajor) { + /* For a row-major matrix, the next column starts at the next + * element. + */ + emit_ubo_loads(col_deref, base_offset, deref_offset + i * 4); + } else { + /* std140 always rounds the stride of arrays (and matrices) to a + * vec4, so matrices are always 16 between columns/rows. + */ + emit_ubo_loads(col_deref, base_offset, deref_offset + i * 16); + } } return; } -- 2.30.2