Switch to GLES2

Closes #13

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);
-}