diff options
| -rw-r--r-- | include/wlr/types/wlr_matrix.h | 5 | ||||
| -rw-r--r-- | render/gles2/renderer.c | 21 | ||||
| -rw-r--r-- | types/wlr_matrix.c | 9 |
3 files changed, 30 insertions, 5 deletions
diff --git a/include/wlr/types/wlr_matrix.h b/include/wlr/types/wlr_matrix.h index fd060d11..02111db8 100644 --- a/include/wlr/types/wlr_matrix.h +++ b/include/wlr/types/wlr_matrix.h @@ -5,11 +5,12 @@ #include <wlr/types/wlr_box.h> void wlr_matrix_identity(float mat[static 9]); +void wlr_matrix_multiply(float mat[static 9], const float a[static 9], + const float b[static 9]); +void wlr_matrix_transpose(float mat[static 9], const float a[static 9]); void wlr_matrix_translate(float mat[static 9], float x, float y); void wlr_matrix_scale(float mat[static 9], float x, float y); void wlr_matrix_rotate(float mat[static 9], float rad); -void wlr_matrix_multiply(float mat[static 9], const float a[static 9], - const float b[static 9]); void wlr_matrix_transform(float mat[static 9], enum wl_output_transform transform); void wlr_matrix_projection(float mat[static 9], int width, int height, 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(); } diff --git a/types/wlr_matrix.c b/types/wlr_matrix.c index c5fa1340..6eb47ca8 100644 --- a/types/wlr_matrix.c +++ b/types/wlr_matrix.c @@ -33,6 +33,15 @@ void wlr_matrix_multiply(float mat[static 9], const float a[static 9], memcpy(mat, product, sizeof(product)); } +void wlr_matrix_transpose(float mat[static 9], const float a[static 9]) { + float transposition[9] = { + a[0], a[3], a[6], + a[1], a[4], a[7], + a[2], a[5], a[8], + }; + memcpy(mat, transposition, sizeof(transposition)); +} + void wlr_matrix_translate(float mat[static 9], float x, float y) { float translate[9] = { 1.0f, 0.0f, x, |