From 5029906c344ea39c13c9875d89da0f6b4a8595aa Mon Sep 17 00:00:00 2001 From: dec05eba Date: Sun, 6 Apr 2025 21:52:15 +0200 Subject: Fallback to graphics shader instead of compute shader if the gpu doesn't support compute shader (either glsl 420 or opengl es glsl 310) --- src/shader.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) (limited to 'src/shader.c') diff --git a/src/shader.c b/src/shader.c index b9fbb62..9b6de6b 100644 --- a/src/shader.c +++ b/src/shader.c @@ -3,14 +3,16 @@ #include #include +static bool print_compile_errors = false; + static int min_int(int a, int b) { return a < b ? a : b; } -static unsigned int loader_shader(gsr_egl *egl, unsigned int type, const char *source) { +static unsigned int load_shader(gsr_egl *egl, unsigned int type, const char *source) { unsigned int shader_id = egl->glCreateShader(type); if(shader_id == 0) { - fprintf(stderr, "gsr error: loader_shader: failed to create shader, error: %d\n", egl->glGetError()); + fprintf(stderr, "gsr error: load_shader: failed to create shader, error: %d\n", egl->glGetError()); return 0; } @@ -23,7 +25,7 @@ static unsigned int loader_shader(gsr_egl *egl, unsigned int type, const char *s int info_length = 0; egl->glGetShaderiv(shader_id, GL_INFO_LOG_LENGTH, &info_length); - if(info_length > 1) { + if(info_length > 1 && print_compile_errors) { char info_log[4096]; egl->glGetShaderInfoLog(shader_id, min_int(4096, info_length), NULL, info_log); fprintf(stderr, "gsr error: loader shader: failed to compile shader, error:\n%s\nshader source:\n%s\n", info_log, source); @@ -45,19 +47,19 @@ static unsigned int load_program(gsr_egl *egl, const char *vertex_shader, const bool success = false; if(vertex_shader) { - vertex_shader_id = loader_shader(egl, GL_VERTEX_SHADER, vertex_shader); + vertex_shader_id = load_shader(egl, GL_VERTEX_SHADER, vertex_shader); if(vertex_shader_id == 0) goto done; } if(fragment_shader) { - fragment_shader_id = loader_shader(egl, GL_FRAGMENT_SHADER, fragment_shader); + fragment_shader_id = load_shader(egl, GL_FRAGMENT_SHADER, fragment_shader); if(fragment_shader_id == 0) goto done; } if(compute_shader) { - compute_shader_id = loader_shader(egl, GL_COMPUTE_SHADER, compute_shader); + compute_shader_id = load_shader(egl, GL_COMPUTE_SHADER, compute_shader); if(compute_shader_id == 0) goto done; } @@ -151,3 +153,7 @@ void gsr_shader_use(gsr_shader *self) { void gsr_shader_use_none(gsr_shader *self) { self->egl->glUseProgram(0); } + +void gsr_shader_enable_debug_output(bool enable) { + print_compile_errors = enable; +} -- cgit v1.2.3-70-g09d2