diff options
Diffstat (limited to 'render/gles3/renderer.c')
| -rw-r--r-- | render/gles3/renderer.c | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/render/gles3/renderer.c b/render/gles3/renderer.c deleted file mode 100644 index 4270bd14..00000000 --- a/render/gles3/renderer.c +++ /dev/null @@ -1,197 +0,0 @@ -#include <stdint.h> -#include <stdlib.h> -#include <assert.h> -#include <GLES3/gl3.h> -#include <wayland-util.h> -#include <wayland-server-protocol.h> -#include <wlr/render.h> -#include <wlr/render/interface.h> -#include <wlr/render/matrix.h> -#include <wlr/util/log.h> -#include "render/gles3.h" - -static struct { - bool initialized; - GLuint rgb, rgba; - GLuint quad; - GLuint ellipse; -} shaders; -static GLuint vao, vbo, ebo; - -static bool compile_shader(GLuint type, const GLchar *src, GLuint *shader) { - *shader = GL_CALL(glCreateShader(type)); - int len = strlen(src); - GL_CALL(glShaderSource(*shader, 1, &src, &len)); - GL_CALL(glCompileShader(*shader)); - GLint success; - GL_CALL(glGetShaderiv(*shader, GL_COMPILE_STATUS, &success)); - if (success == GL_FALSE) { - GLint loglen; - GL_CALL(glGetShaderiv(*shader, GL_INFO_LOG_LENGTH, &loglen)); - GLchar msg[loglen]; - GL_CALL(glGetShaderInfoLog(*shader, loglen, &loglen, msg)); - wlr_log(L_ERROR, "Shader compilation failed"); - wlr_log(L_ERROR, "%s", msg); - exit(1); - return false; - } - return true; -} - -static bool compile_program(const GLchar *vert_src, - const GLchar *frag_src, GLuint *program) { - GLuint vertex, fragment; - if (!compile_shader(GL_VERTEX_SHADER, vert_src, &vertex)) { - return false; - } - if (!compile_shader(GL_FRAGMENT_SHADER, frag_src, &fragment)) { - glDeleteProgram(vertex); - return false; - } - *program = GL_CALL(glCreateProgram()); - GL_CALL(glAttachShader(*program, vertex)); - GL_CALL(glAttachShader(*program, fragment)); - GL_CALL(glLinkProgram(*program)); - return true; -} - -static void init_default_shaders() { - if (shaders.initialized) { - return; - } - if (!compile_program(vertex_src, fragment_src_RGB, &shaders.rgb)) { - goto error; - } - if (!compile_program(vertex_src, fragment_src_RGBA, &shaders.rgba)) { - goto error; - } - if (!compile_program(quad_vertex_src, quad_fragment_src, &shaders.quad)) { - goto error; - } - if (!compile_program(quad_vertex_src, ellipse_fragment_src, &shaders.ellipse)) { - goto error; - } - wlr_log(L_DEBUG, "Compiled default shaders"); - return; -error: - wlr_log(L_ERROR, "Failed to set up default shaders!"); -} - -static void init_default_quad() { - GLfloat verticies[] = { - 1, 1, 1, 1, // bottom right - 1, 0, 1, 0, // top right - 0, 0, 0, 0, // top left - 0, 1, 0, 1, // bottom left - }; - GLuint indicies[] = { - 0, 1, 3, - 1, 2, 3, - }; - - GL_CALL(glGenVertexArrays(1, &vao)); - GL_CALL(glGenBuffers(1, &vbo)); - - GL_CALL(glBindVertexArray(vao)); - GL_CALL(glBindBuffer(GL_ARRAY_BUFFER, vbo)); - - GL_CALL(glEnableVertexAttribArray(0)); - GL_CALL(glEnableVertexAttribArray(1)); - GL_CALL(glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 4 * sizeof(GLfloat), (void *)0)); - GL_CALL(glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 4 * sizeof(GLfloat), (void *)(2 * sizeof(GLfloat)))); - GL_CALL(glBufferData(GL_ARRAY_BUFFER, sizeof(verticies), verticies, GL_STATIC_DRAW)); - - GL_CALL(glGenBuffers(1, &ebo)); - GL_CALL(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ebo)); - GL_CALL(glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indicies), indicies, GL_STATIC_DRAW)); -} - -static void init_globals() { - init_default_shaders(); - init_default_quad(); -} - -static void wlr_gles3_begin(struct wlr_renderer_state *state, - struct wlr_output *output) { - // TODO: let users customize the clear color? - GL_CALL(glClearColor(0.25f, 0.25f, 0.25f, 1)); - GL_CALL(glClear(GL_COLOR_BUFFER_BIT)); - int32_t width = output->width; - int32_t height = output->height; - GL_CALL(glViewport(0, 0, width, height)); - // Note: maybe we should save output projection and remove some of the need - // for users to sling matricies themselves -} - -static void wlr_gles3_end(struct wlr_renderer_state *state) { - // no-op -} - -static struct wlr_surface *wlr_gles3_surface_init(struct wlr_renderer_state *state) { - return gles3_surface_init(); -} - -static bool wlr_gles3_render_surface(struct wlr_renderer_state *state, - struct wlr_surface *surface, const float (*matrix)[16]) { - assert(surface && surface->valid); - switch (surface->format) { - case GL_RGB: - GL_CALL(glUseProgram(shaders.rgb)); - break; - case GL_RGBA: - GL_CALL(glUseProgram(shaders.rgba)); - break; - default: - wlr_log(L_ERROR, "No shader for this surface format"); - return false; - } - gles3_flush_errors(); - GL_CALL(glBindVertexArray(vao)); - GL_CALL(glBindBuffer(GL_ARRAY_BUFFER, vbo)); - GL_CALL(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ebo)); - wlr_surface_bind(surface); - GL_CALL(glUniformMatrix4fv(0, 1, GL_TRUE, *matrix)); - GL_CALL(glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0)); - return true; -} - -static void wlr_gles3_render_quad(struct wlr_renderer_state *state, - const float (*color)[4], const float (*matrix)[16]) { - GL_CALL(glUseProgram(shaders.quad)); - GL_CALL(glBindVertexArray(vao)); - GL_CALL(glBindBuffer(GL_ARRAY_BUFFER, vbo)); - GL_CALL(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ebo)); - GL_CALL(glUniformMatrix4fv(0, 1, GL_TRUE, *matrix)); - GL_CALL(glUniform4f(1, (*color)[0], (*color)[1], (*color)[2], (*color)[3])); - GL_CALL(glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0)); -} - -static void wlr_gles3_render_ellipse(struct wlr_renderer_state *state, - const float (*color)[4], const float (*matrix)[16]) { - GL_CALL(glUseProgram(shaders.ellipse)); - GL_CALL(glBindVertexArray(vao)); - GL_CALL(glBindBuffer(GL_ARRAY_BUFFER, vbo)); - GL_CALL(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ebo)); - GL_CALL(glUniformMatrix4fv(0, 1, GL_TRUE, *matrix)); - GL_CALL(glUniform4f(1, (*color)[0], (*color)[1], (*color)[2], (*color)[3])); - GL_CALL(glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0)); -} - -static void wlr_gles3_destroy(struct wlr_renderer_state *state) { - // no-op -} - -static struct wlr_renderer_impl wlr_renderer_impl = { - .begin = wlr_gles3_begin, - .end = wlr_gles3_end, - .surface_init = wlr_gles3_surface_init, - .render_with_matrix = wlr_gles3_render_surface, - .render_quad = wlr_gles3_render_quad, - .render_ellipse = wlr_gles3_render_ellipse, - .destroy = wlr_gles3_destroy -}; - -struct wlr_renderer *wlr_gles3_renderer_init() { - init_globals(); - return wlr_renderer_init(NULL, &wlr_renderer_impl); -} |