diff options
Diffstat (limited to 'src/state.c')
| -rw-r--r-- | src/state.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/src/state.c b/src/state.c index b2ea45c..3468464 100644 --- a/src/state.c +++ b/src/state.c @@ -27,6 +27,24 @@ bool state_init(State *state) SDL_GL_GetDrawableSize(state->window, &state->width, &state->height); GL_CALL(glViewport(0, 0, state->width, state->height)); + float vertices[] = { + 1.0f, 1.0f, + 1.0f, -1.0f, + -1.0f, 1.0f, + + 1.0f, -1.0f, + -1.0f, -1.0f, + -1.0f, 1.0f, + }; + GL_CALL(glGenVertexArrays(1, &state->vertex_array)); + GL_CALL(glBindVertexArray(state->vertex_array)); + + GL_CALL(glGenBuffers(1, &state->vertex_buf)); + GL_CALL(glBindBuffer(GL_ARRAY_BUFFER, state->vertex_buf)); + GL_CALL(glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW)); + GL_CALL(glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(float), (void*)0)); + GL_CALL(glEnableVertexAttribArray(0)); + /* state->palette = color_palette_new(NULL, MANDEL_ITERATIONS); */ /* if (state->palette == NULL) */ /* return false; */ @@ -44,8 +62,13 @@ void state_run(State *state) while (state->running) { event_handle(state); - glClearColor(0.2, 0.3, 0.2, 1.0); - glClear(GL_COLOR_BUFFER_BIT); + GL_CALL(glClearColor(0.2, 0.3, 0.2, 1.0)); + GL_CALL(glClear(GL_COLOR_BUFFER_BIT)); + + GL_CALL(glUseProgram(state->shader.id)); + shader_set_uniforms(&state->shader, state); + GL_CALL(glBindVertexArray(state->vertex_array)); + GL_CALL(glDrawArrays(GL_TRIANGLES, 0, 6)); SDL_GL_SwapWindow(state->window); SDL_Delay(3); |