diff options
| author | marxin <mliska@suse.cz> | 2019-01-18 22:58:42 +0100 |
|---|---|---|
| committer | marxin <mliska@suse.cz> | 2019-01-19 10:25:01 +0100 |
| commit | d9eb6a5b206b0a2f67022b7bae32fb8e46badb95 (patch) | |
| tree | a7a983337cbf6fb6e0fa64afd9141eee20481716 /drivers/gles3/rasterizer_scene_gles3.cpp | |
| parent | 7f9209781cea7148934a5e48c5c14167ce256cc8 (diff) | |
Fix #19633 by proper store to &ubo_data.shadow_matrix[1234].
It is not valid in C++ to store into shadow_matrix1[16] with shadow_matrix1[16 * j]
(for j > 0). Even though there's a valid space in a struct after shadow_matrix1.
Knowing that GCC performs aggressive optimizations that eventually lead
to a wrong code. Code has been changed into union where one can either
use shadow_matrix[4 * 16], or individual shadow_matrix1, shadow_matrix2, etc. GCC pragma
is not needed any longer.
Diffstat (limited to 'drivers/gles3/rasterizer_scene_gles3.cpp')
| -rw-r--r-- | drivers/gles3/rasterizer_scene_gles3.cpp | 16 |
1 files changed, 3 insertions, 13 deletions
diff --git a/drivers/gles3/rasterizer_scene_gles3.cpp b/drivers/gles3/rasterizer_scene_gles3.cpp index d53b27eb88..1fba8535d8 100644 --- a/drivers/gles3/rasterizer_scene_gles3.cpp +++ b/drivers/gles3/rasterizer_scene_gles3.cpp @@ -2677,13 +2677,6 @@ void RasterizerSceneGLES3::_setup_environment(Environment *env, const CameraMatr glBindBuffer(GL_UNIFORM_BUFFER, 0); } -// Drop -O3 for this function as it triggers a GCC bug up until at least GCC 8.2.1. -// This refers to GH issue #19633. -// The bug has been reported to the GCC project. -#if defined(__GNUC__) && !defined(__clang__) -#pragma GCC push_options -#pragma GCC optimize("-O2") -#endif void RasterizerSceneGLES3::_setup_directional_light(int p_index, const Transform &p_camera_inverse_transform, bool p_use_shadows) { LightInstance *li = directional_lights[p_index]; @@ -2784,7 +2777,7 @@ void RasterizerSceneGLES3::_setup_directional_light(int p_index, const Transform CameraMatrix shadow_mtx = rectm * bias * li->shadow_transform[j].camera * modelview; - store_camera(shadow_mtx, &ubo_data.shadow_matrix1[16 * j]); + store_camera(shadow_mtx, &ubo_data.shadow.matrix[16 * j]); ubo_data.light_clamp[0] = atlas_rect.position.x; ubo_data.light_clamp[1] = atlas_rect.position.y; @@ -2801,9 +2794,6 @@ void RasterizerSceneGLES3::_setup_directional_light(int p_index, const Transform glBindBufferBase(GL_UNIFORM_BUFFER, 3, state.directional_ubo); } -#if defined(__GNUC__) && !defined(__clang__) -#pragma GCC pop_options -#endif void RasterizerSceneGLES3::_setup_lights(RID *p_light_cull_result, int p_light_cull_count, const Transform &p_camera_inverse_transform, const CameraMatrix &p_camera_projection, RID p_shadow_atlas) { @@ -2898,7 +2888,7 @@ void RasterizerSceneGLES3::_setup_lights(RID *p_light_cull_result, int p_light_c Transform proj = (p_camera_inverse_transform * li->transform).inverse(); - store_transform(proj, ubo_data.shadow_matrix1); + store_transform(proj, ubo_data.shadow.matrix1); ubo_data.light_params[3] = 1.0; //means it has shadow ubo_data.light_clamp[0] = float(x) / atlas_size; @@ -2987,7 +2977,7 @@ void RasterizerSceneGLES3::_setup_lights(RID *p_light_cull_result, int p_light_c CameraMatrix shadow_mtx = rectm * bias * li->shadow_transform[0].camera * modelview; - store_camera(shadow_mtx, ubo_data.shadow_matrix1); + store_camera(shadow_mtx, ubo_data.shadow.matrix1); } li->light_index = state.spot_light_count; |