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Diffstat (limited to 'render')
-rw-r--r--render/gles2/renderer.c21
1 files changed, 18 insertions, 3 deletions
diff --git a/render/gles2/renderer.c b/render/gles2/renderer.c
index a212e908..8d8dd17f 100644
--- a/render/gles2/renderer.c
+++ b/render/gles2/renderer.c
@@ -180,8 +180,13 @@ static bool wlr_gles2_render_texture_with_matrix(
return false;
}
+ // OpenGL ES 2 requires the glUniformMatrix3fv transpose parameter to be set
+ // to GL_FALSE
+ float transposition[9];
+ wlr_matrix_transpose(transposition, matrix);
+
wlr_texture_bind(texture);
- GL_CALL(glUniformMatrix3fv(0, 1, GL_TRUE, matrix));
+ GL_CALL(glUniformMatrix3fv(0, 1, GL_FALSE, transposition));
GL_CALL(glUniform1i(1, texture->inverted_y));
GL_CALL(glUniform1f(3, alpha));
draw_quad();
@@ -191,16 +196,26 @@ static bool wlr_gles2_render_texture_with_matrix(
static void wlr_gles2_render_quad(struct wlr_renderer *wlr_renderer,
const float color[static 4], const float matrix[static 9]) {
+ // OpenGL ES 2 requires the glUniformMatrix3fv transpose parameter to be set
+ // to GL_FALSE
+ float transposition[9];
+ wlr_matrix_transpose(transposition, matrix);
+
GL_CALL(glUseProgram(shaders.quad));
- GL_CALL(glUniformMatrix3fv(0, 1, GL_TRUE, matrix));
+ GL_CALL(glUniformMatrix3fv(0, 1, GL_FALSE, transposition));
GL_CALL(glUniform4f(1, color[0], color[1], color[2], color[3]));
draw_quad();
}
static void wlr_gles2_render_ellipse(struct wlr_renderer *wlr_renderer,
const float color[static 4], const float matrix[static 9]) {
+ // OpenGL ES 2 requires the glUniformMatrix3fv transpose parameter to be set
+ // to GL_FALSE
+ float transposition[9];
+ wlr_matrix_transpose(transposition, matrix);
+
GL_CALL(glUseProgram(shaders.ellipse));
- GL_CALL(glUniformMatrix3fv(0, 1, GL_TRUE, matrix));
+ GL_CALL(glUniformMatrix3fv(0, 1, GL_FALSE, transposition));
GL_CALL(glUniform4f(1, color[0], color[1], color[2], color[3]));
draw_quad();
}