examples/rogue.cpp

@@ -18,15 +18,21 @@ namespace
 	{
 		glerminal_load_sprites_file("resources/rogue.png");
 
+		for (int i = 0; i < WALL_LAYERS; i++)
+		{
+			const unsigned char v = (i + 1) * (256 / WALL_LAYERS) - 1;
+			const unsigned int j = (0xFF << 24) | (v << 16) | (v << 8) | v;
+			glerminal_layer_color(i, j);
+
+			glerminal_layer_scale(i, (i / static_cast<float>(WALL_LAYERS)) + 1);
+		}
+
 		for (int i = 0; i < GRID_WIDTH; i++)
 		{
 			for (int j = 0; j < GRID_HEIGHT; j++)
 			{
 				for (int k = 0; k < WALL_LAYERS; k++)
 				{
-					const unsigned char v = (k + 1) * (256 / WALL_LAYERS) - 1;
-					const unsigned int c = (0xFF << 24) | (v << 16) | (v << 8) | v;
-
 					if (i == 0 || j == 0 || i == GRID_WIDTH - 1 || j == GRID_HEIGHT - 1)
 					{
 						glerminal_set(i, j, k, floor);
@@ -35,9 +41,6 @@ namespace
 					{
 						glerminal_set(i, j, k, wall);
 					}
-
-					glerminal_color(i, j, k, c);
-					glerminal_scale(i, j, k, (k / static_cast<float>(WALL_LAYERS)) + 1);
 				}
 			}
 		}

examples/towers.cpp

@@ -11,6 +11,14 @@ namespace
 		
 		glerminal_load_sprites_file("resources/towers.png");
 
+		for (int i = 0; i < LAYER_COUNT; i++)
+		{
+			constexpr unsigned char c = 16;
+			const unsigned char v = (255 - c) * powf((256 / LAYER_COUNT * i - 1) / 256.0f, 2.0f) + c;
+			const unsigned int j = (0xFF << 24) | (v << 16) | (v << 8) | v;
+			glerminal_layer_color(i, j);
+			glerminal_layer_scale(i, i / static_cast<float>(LAYER_COUNT) + 1);
+		}
 
 		for (int i = 0; i < GRID_WIDTH; i++)
 		{
@@ -21,15 +29,6 @@ namespace
 				{
 					glerminal_set(i, j, k, 1);
 				}
-
-				for (int k = 0; k < LAYER_COUNT; k++)
-				{
-					constexpr unsigned char min = 16;
-					const unsigned char v = (255 - min) * powf((256 / LAYER_COUNT * k - 1) / 256.0f, 2.0f) + min;
-					const unsigned int col = (0xFF << 24) | (v << 16) | (v << 8) | v;
-					glerminal_color(i, j, k, col);
-					glerminal_scale(i, j, k, k / static_cast<float>(LAYER_COUNT) + 1);
-				}
 			}
 		}
 	}

include/glerminal.h

@@ -59,13 +59,13 @@ void glerminal_offset(unsigned char x, unsigned char y, unsigned char layer, flo
  * @param layer The layer to modify
  * @param color The new color
  */
-void glerminal_color(unsigned char x, unsigned char y, unsigned char layer, unsigned int color);
+void glerminal_layer_color(unsigned char layer, unsigned int color);
 /**
  * @brief Set a layer's scale
  * @param layer The layer to modify
  * @param scale The new scale
  */
-void glerminal_scale(unsigned char x, unsigned char y, unsigned char layer, float scale);
+void glerminal_layer_scale(unsigned char layer, float scale);
 
 /**
  * @brief Load sprites from a png file

source/glerminal-main.cpp

@@ -71,22 +71,18 @@ namespace
 
 	int lglerminal_layer_color(lua_State* L)
 	{
-		const unsigned char x = luaL_checkinteger(L, 1) - 1;
-		const unsigned char y = luaL_checkinteger(L, 2) - 1;
-		const unsigned char layer = luaL_checkinteger(L, 3) - 1;
-		const unsigned int color = luaL_checkinteger(L, 4);
-		glerminal_color(x, y, layer, color);
+		const unsigned char layer = luaL_checkinteger(L, 1) - 1;
+		const unsigned int color = luaL_checkinteger(L, 2);
+		glerminal_layer_color(layer, color);
 
 		return 0;
 	}
 
 	int lglerminal_layer_scale(lua_State* L)
 	{
-		const unsigned char x = luaL_checkinteger(L, 1) - 1;
-		const unsigned char y = luaL_checkinteger(L, 2) - 1;
-		const unsigned char layer = luaL_checkinteger(L, 3) - 1;
-		const float scale = luaL_checknumber(L, 4);
-		glerminal_scale(x, y, layer, scale);
+		const unsigned char layer = luaL_checkinteger(L, 1) - 1;
+		const float scale = luaL_checknumber(L, 2);
+		glerminal_layer_scale(layer, scale);
 
 		return 0;
 	}
@@ -114,10 +110,13 @@ namespace
 
 	int message_handler(lua_State* L)
 	{
-		luaL_traceback(L, L, lua_tostring(L, -1), 1);
-		lua_remove(L, -2);
+		const char* error_message = lua_tostring(L, -1);
 
-		glerminal_quit();
+		luaL_traceback(L, L, error_message, 1);
+
+		const char* err = lua_tostring(L, -1);
+
+		lua_remove(L, -2);
 
 		return true;
 	}

source/glerminal-private.h

@@ -44,8 +44,8 @@ namespace glerminal
 		void set(unsigned char x, unsigned char y, unsigned char layer, unsigned short sprite);
 		unsigned short get(unsigned char x, unsigned char y, unsigned char layer) const;
 		void offset(unsigned char x, unsigned char y, unsigned char layer, float x_offset, float y_offset);
-		void color(unsigned char x, unsigned char y, unsigned char layer, unsigned int color);
-		void scale(unsigned char x, unsigned char y, unsigned char layer, float scale);
+		void layer_color(unsigned char layer, unsigned int color);
+		void layer_scale(unsigned char layer, float scale);
 		void load_atlas(unsigned char w, unsigned char h, const unsigned int* data);
 
 	private:
@@ -67,8 +67,8 @@ namespace glerminal
 		unsigned int m_framebuffer_backing_texture;
 		unsigned int m_screen_framebuffer;
 		unsigned int m_screen_framebuffer_backing_texture;
-		unsigned int m_colors_instance_vbo;
-		unsigned int m_scales_instance_vbo;
+		unsigned int m_layer_colors_buffer;
+		unsigned int m_layer_scales_buffer;
 		unsigned int m_screen_size_uniform_location;
 		unsigned int m_palette_uniform_location;
 
@@ -76,8 +76,11 @@ namespace glerminal
 
 		unsigned short m_cells[GRID_AREA * LAYER_COUNT];
 		float m_offsets[GRID_AREA * LAYER_COUNT * 2];
-		unsigned char m_colors[GRID_AREA * LAYER_COUNT * 4];
-		float m_scales[GRID_AREA * LAYER_COUNT];
+
+		// per-layer data
+
+		float m_layer_colors[LAYER_COUNT * 4];
+		float m_layer_scales[LAYER_COUNT];
 
 		// library state
 
@@ -97,8 +100,8 @@ namespace glerminal
 		void deinit_gl();
 
 		void update_sprites();
-		void update_colors();
-		void update_scales();
+		void update_layer_colors();
+		void update_layer_scales();
 
 		static void glfw_key_handler(GLFWwindow* window, int key, int scancode, int action, int mods);
 	};

source/glerminal.cpp

@@ -31,10 +31,16 @@ namespace
 		"layout (location = 0) in vec2 position;\n"
 		"layout (location = 1) in vec2 offset;\n"
 		"layout (location = 2) in int sprite;\n"
-		"layout (location = 3) in vec4 color;\n"
-		"layout (location = 4) in float scale;\n"
 		"uniform vec4 " GRID_SIZE_UNIFORM_NAME ";\n"
 		"uniform int " ATLAS_WIDTH_UNIFORM_NAME ";\n"
+		"layout (std430, binding = 0) buffer LayerScales"
+		"{\n"
+		"	float scales[];\n"
+		"} lss;\n"
+		"layout (std430, binding = 1) buffer LayerColors"
+		"{\n"
+		"	vec4 colors[];\n"
+		"} lcs;\n"
 		"out VS_OUT {\n"
 		"	flat int sprite;\n"
 		"	flat int layer;\n"
@@ -47,10 +53,10 @@ namespace
 		"	vec2 scaled_offset = 2 * offset * " GRID_SIZE_UNIFORM_NAME ".zw;\n"
 		"	vs_out.sprite = sprite;\n"
 		"	vs_out.layer = layer;\n"
-		"	vs_out.layer_color = color;\n"
+		"	vs_out.layer_color = lcs.colors[layer];\n"
 		"	vs_out.texcoord = vec2(sprite % " ATLAS_WIDTH_UNIFORM_NAME " + position.x + 1, (sprite / " ATLAS_WIDTH_UNIFORM_NAME ") - position.y) / vec2(" ATLAS_WIDTH_UNIFORM_NAME ") + vec2(-(2 * position.x + 1) * " GRID_SIZE_UNIFORM_NAME ".z / 16, (2 * position.y + 1) * " GRID_SIZE_UNIFORM_NAME ".z / 16);\n"
-		"	vec2 cell_position = vec2(scale + (gl_InstanceID % int(" GRID_SIZE_UNIFORM_NAME ".y)) - " GRID_SIZE_UNIFORM_NAME ".x * floor((gl_InstanceID % int(" GRID_SIZE_UNIFORM_NAME ".y)) * " GRID_SIZE_UNIFORM_NAME ".z), -floor((gl_InstanceID % int(" GRID_SIZE_UNIFORM_NAME ".y)) * " GRID_SIZE_UNIFORM_NAME ".z));\n"
-		"	vec2 temp = ((position + vec2(-0.5, 0.5)) * scale + cell_position + vec2(0.5, -0.5)) * " GRID_SIZE_UNIFORM_NAME ".zw * 2 + vec2(-1, 1);\n"
+		"	vec2 cell_position = vec2(lss.scales[layer] + (gl_InstanceID % int(" GRID_SIZE_UNIFORM_NAME ".y)) - " GRID_SIZE_UNIFORM_NAME ".x * floor((gl_InstanceID % int(" GRID_SIZE_UNIFORM_NAME ".y)) * " GRID_SIZE_UNIFORM_NAME ".z), -floor((gl_InstanceID % int(" GRID_SIZE_UNIFORM_NAME ".y)) * " GRID_SIZE_UNIFORM_NAME ".z));\n"
+		"	vec2 temp = ((position + vec2(-0.5, 0.5)) * lss.scales[layer] + cell_position + vec2(0.5, -0.5)) * " GRID_SIZE_UNIFORM_NAME ".zw * 2 + vec2(-1, 1);\n"
 		"	gl_Position = vec4(scaled_offset.x + temp.x, scaled_offset.y - temp.y, 0, 1);\n"
 		"}";
 
@@ -62,10 +68,16 @@ namespace
 		"layout (location = 0) in vec2 position;\n"
 		"layout (location = 1) in vec2 offset;\n"
 		"layout (location = 2) in int sprite;\n"
-		"layout (location = 3) in vec4 color;\n"
-		"layout (location = 4) in float scale;\n"
 		"uniform vec4 " GRID_SIZE_UNIFORM_NAME ";\n"
 		"uniform int " ATLAS_WIDTH_UNIFORM_NAME ";\n"
+		"layout (std430, binding = 0) buffer LayerScales"
+		"{\n"
+		"	float scales[];\n"
+		"} lss;\n"
+		"layout (std430, binding = 1) buffer LayerColors"
+		"{\n"
+		"	vec4 colors[];\n"
+		"} lcs;\n"
 		"out VS_OUT {\n"
 		"	flat int sprite;\n"
 		"	flat vec4 layer_color;\n"
@@ -78,9 +90,9 @@ namespace
 		"	vec2 scaled_offset = 2 * offset * " GRID_SIZE_UNIFORM_NAME ".zw;\n"
 		"	vs_out.sprite = sprite;\n"
 		"	vs_out.texcoord = vec2(sprite % " ATLAS_WIDTH_UNIFORM_NAME " + position.x + 1, (sprite / " ATLAS_WIDTH_UNIFORM_NAME ") - position.y) / vec2(" ATLAS_WIDTH_UNIFORM_NAME ") + vec2(-(2 * position.x + 1) * " GRID_SIZE_UNIFORM_NAME ".z / 16, (2 * position.y + 1) * " GRID_SIZE_UNIFORM_NAME ".z / 16);\n"
-		"	vs_out.layer_color = color;\n"
-		"	vec2 cell_position = vec2(scale + (gl_InstanceID % int(" GRID_SIZE_UNIFORM_NAME ".y)) - " GRID_SIZE_UNIFORM_NAME ".x * floor((gl_InstanceID % int(" GRID_SIZE_UNIFORM_NAME ".y)) * " GRID_SIZE_UNIFORM_NAME ".z), -floor((gl_InstanceID % int(" GRID_SIZE_UNIFORM_NAME ".y)) * " GRID_SIZE_UNIFORM_NAME ".z));\n"
-		"	vec2 temp = ((position + vec2(-0.5, 0.5)) * scale + cell_position + vec2(0.5, -0.5)) * " GRID_SIZE_UNIFORM_NAME ".zw * 2 + vec2(-1, 1);\n"
+		"	vs_out.layer_color = lcs.colors[layer];\n"
+		"	vec2 cell_position = vec2(lss.scales[layer] + (gl_InstanceID % int(" GRID_SIZE_UNIFORM_NAME ".y)) - " GRID_SIZE_UNIFORM_NAME ".x * floor((gl_InstanceID % int(" GRID_SIZE_UNIFORM_NAME ".y)) * " GRID_SIZE_UNIFORM_NAME ".z), -floor((gl_InstanceID % int(" GRID_SIZE_UNIFORM_NAME ".y)) * " GRID_SIZE_UNIFORM_NAME ".z));\n"
+		"	vec2 temp = ((position + vec2(-0.5, 0.5)) * lss.scales[layer] + cell_position + vec2(0.5, -0.5)) * " GRID_SIZE_UNIFORM_NAME ".zw * 2 + vec2(-1, 1);\n"
 		"	gl_Position = vec4(scaled_offset.x + temp.x, scaled_offset.y - temp.y, 0, 1);\n"
 		"}";
 
@@ -196,8 +208,8 @@ namespace glerminal
 		m_cells{ },
 		m_offsets{ },
 		m_sprites{ },
-		m_colors{ },
-		m_scales{ }
+		m_layer_colors{ },
+		m_layer_scales{ }
 #ifdef GLERMINAL_OPENGL_DEBUG_CONTEXT
 		, m_log("log.txt")
 #endif
@@ -218,10 +230,10 @@ namespace glerminal
 			throw std::runtime_error("No main callback provided.");
 		}
 
-		for (int i = 0; i < GRID_AREA * LAYER_COUNT; i++)
+		for (int i = 0; i < LAYER_COUNT; i++)
 		{
-			m_colors[i * 4 + 0] = m_colors[i * 4 + 1] = m_colors[i * 4 + 2] = m_colors[i * 4 + 3] = 255;
-			m_scales[i] = 1;
+			m_layer_colors[i * 4 + 0] = m_layer_colors[i * 4 + 1] = m_layer_colors[i * 4 + 2] = m_layer_colors[i * 4 + 3] = 1;
+			m_layer_scales[i] = 1;
 		}
 
 		init_glfw();
@@ -262,11 +274,11 @@ namespace glerminal
 
 	void glerminal::flush()
 	{
-		glNamedBufferSubData(m_sprites_instance_vbo, 0, sizeof(m_cells), m_cells);
-		glNamedBufferSubData(m_offsets_instance_vbo, 0, sizeof(m_offsets), m_offsets);
+		glNamedBufferData(m_sprites_instance_vbo, sizeof(m_cells), m_cells, GL_STREAM_DRAW);
+		glNamedBufferData(m_offsets_instance_vbo, sizeof(m_offsets), m_offsets, GL_STREAM_DRAW);
 		update_sprites();
-		update_colors();
-		update_scales();
+		update_layer_colors();
+		update_layer_scales();
 
 		glUseProgram(m_program);
 		glBindFramebuffer(GL_FRAMEBUFFER, m_framebuffer);
@@ -318,17 +330,17 @@ namespace glerminal
 		}
 	}
 
-	void glerminal::color(unsigned char x, unsigned char y, unsigned char layer, unsigned int color)
+	void glerminal::layer_color(unsigned char layer, unsigned int color)
 	{
-		m_colors[4 * (x + y * GRID_WIDTH + layer * GRID_AREA) + 0] = ((color >>  0) & 0xFF);
-		m_colors[4 * (x + y * GRID_WIDTH + layer * GRID_AREA) + 1] = ((color >>  8) & 0xFF);
-		m_colors[4 * (x + y * GRID_WIDTH + layer * GRID_AREA) + 2] = ((color >> 16) & 0xFF);
-		m_colors[4 * (x + y * GRID_WIDTH + layer * GRID_AREA) + 3] = ((color >> 24) & 0xFF);
+		m_layer_colors[layer * 4 + 0] = ((color >>  0) & 0xFF) / 255.0f;
+		m_layer_colors[layer * 4 + 1] = ((color >>  8) & 0xFF) / 255.0f;
+		m_layer_colors[layer * 4 + 2] = ((color >> 16) & 0xFF) / 255.0f;
+		m_layer_colors[layer * 4 + 3] = ((color >> 24) & 0xFF) / 255.0f;
 	}
 
-	void glerminal::scale(unsigned char x, unsigned char y, unsigned char layer, float scale)
+	void glerminal::layer_scale(unsigned char layer, float scale)
 	{
-		m_scales[x + y * GRID_WIDTH + layer * GRID_AREA] = scale;
+		m_layer_scales[layer] = scale;
 	}
 
 	void glerminal::load_atlas(unsigned char w, unsigned char h, const unsigned int* data)
@@ -395,6 +407,7 @@ namespace glerminal
 	void glerminal::init_gl()
 	{
 		glfwMakeContextCurrent(m_window);
+		glfwSwapInterval(1);
 
 		if (!gladLoadGLLoader(reinterpret_cast<GLADloadproc>(glfwGetProcAddress)))
 		{
@@ -469,8 +482,8 @@ namespace glerminal
 		glGenBuffers(1, &m_vbo);
 		glGenBuffers(1, &m_sprites_instance_vbo);
 		glGenBuffers(1, &m_offsets_instance_vbo);
-		glGenBuffers(1, &m_colors_instance_vbo);
-		glGenBuffers(1, &m_scales_instance_vbo);
+		glGenBuffers(1, &m_layer_colors_buffer);
+		glGenBuffers(1, &m_layer_scales_buffer);
 
 		// create vertex array object
 		glGenVertexArrays(1, &m_vao);
@@ -478,35 +491,23 @@ namespace glerminal
 
 		// set up static vertex attributes
 		glBindBuffer(GL_ARRAY_BUFFER, m_vbo);
-		glBufferStorage(GL_ARRAY_BUFFER, sizeof(VBO_VERTICES), VBO_VERTICES, GL_NONE);
+		glBufferData(GL_ARRAY_BUFFER, sizeof(VBO_VERTICES), VBO_VERTICES, GL_STATIC_DRAW);
 		glEnableVertexAttribArray(0);
 		glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(*VBO_VERTICES), reinterpret_cast<void*>(0));
 
 		// set up instanced vertex attributes
 		glBindBuffer(GL_ARRAY_BUFFER, m_offsets_instance_vbo);
-		glBufferStorage(GL_ARRAY_BUFFER, sizeof(m_offsets), m_offsets, GL_DYNAMIC_STORAGE_BIT);
+		glBufferData(GL_ARRAY_BUFFER, sizeof(m_offsets), m_offsets, GL_STREAM_DRAW);
 		glEnableVertexAttribArray(1);
 		glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(*m_offsets), reinterpret_cast<void*>(0));
 		glVertexAttribDivisor(1, 1);
 
 		glBindBuffer(GL_ARRAY_BUFFER, m_sprites_instance_vbo);
-		glBufferStorage(GL_ARRAY_BUFFER, sizeof(m_cells), m_cells, GL_DYNAMIC_STORAGE_BIT);
+		glBufferData(GL_ARRAY_BUFFER, sizeof(m_cells), m_cells, GL_STREAM_DRAW);
 		glEnableVertexAttribArray(2);
 		glVertexAttribIPointer(2, 1, GL_UNSIGNED_SHORT, 1 * sizeof(*m_cells), reinterpret_cast<void*>(0));
 		glVertexAttribDivisor(2, 1);
 
-		glBindBuffer(GL_ARRAY_BUFFER, m_colors_instance_vbo);
-		glBufferStorage(GL_ARRAY_BUFFER, sizeof(m_colors), m_colors, GL_DYNAMIC_STORAGE_BIT);
-		glEnableVertexAttribArray(3);
-		glVertexAttribPointer(3, 4, GL_UNSIGNED_BYTE, GL_TRUE, 4 * sizeof(*m_colors), reinterpret_cast<void*>(0));
-		glVertexAttribDivisor(3, 1);
-
-		glBindBuffer(GL_ARRAY_BUFFER, m_scales_instance_vbo);
-		glBufferStorage(GL_ARRAY_BUFFER, sizeof(m_scales), m_scales, GL_DYNAMIC_STORAGE_BIT);
-		glEnableVertexAttribArray(4);
-		glVertexAttribPointer(4, 1, GL_FLOAT, GL_FALSE, 1 * sizeof(*m_scales), reinterpret_cast<void*>(0));
-		glVertexAttribDivisor(4, 1);
-
 		// set up static vertex attributes
 		glGenVertexArrays(1, &m_screen_vao);
 		glBindVertexArray(m_screen_vao);
@@ -517,6 +518,14 @@ namespace glerminal
 
 		glBindVertexArray(0);
 
+		glBindBuffer(GL_SHADER_STORAGE_BUFFER, m_layer_scales_buffer);
+		glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(m_layer_scales), m_layer_scales, GL_DYNAMIC_READ);
+		glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 0, m_layer_scales_buffer);
+
+		glBindBuffer(GL_SHADER_STORAGE_BUFFER, m_layer_colors_buffer);
+		glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(m_layer_colors), m_layer_colors, GL_DYNAMIC_READ);
+		glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 1, m_layer_colors_buffer);
+
 		// -- setup shader program --
 		// test for features
 		const bool vertex_shader_layer_supported =
@@ -756,8 +765,8 @@ namespace glerminal
 		glDeleteBuffers(1, &m_vbo);
 		glDeleteBuffers(1, &m_sprites_instance_vbo);
 		glDeleteBuffers(1, &m_offsets_instance_vbo);
-		glDeleteBuffers(1, &m_colors_instance_vbo);
-		glDeleteBuffers(1, &m_scales_instance_vbo);
+		glDeleteBuffers(1, &m_layer_colors_buffer);
+		glDeleteBuffers(1, &m_layer_scales_buffer);
 		glDeleteProgram(m_program);
 	}
 
@@ -766,14 +775,14 @@ namespace glerminal
 		glTextureSubImage2D(m_sprites_texture, 0, 0, 0, (CELL_SIZE + 2) * MAX_SPRITES_ROW, (CELL_SIZE + 2) * MAX_SPRITES_ROW, GL_RGBA, GL_UNSIGNED_BYTE, m_sprites);
 	}
 
-	void glerminal::update_colors()
+	void glerminal::update_layer_colors()
 	{
-		glNamedBufferSubData(m_colors_instance_vbo, 0, sizeof(m_colors), m_colors);
+		glNamedBufferData(m_layer_colors_buffer, sizeof(m_layer_colors), m_layer_colors, GL_DYNAMIC_READ);
 	}
 
-	void glerminal::update_scales()
+	void glerminal::update_layer_scales()
 	{
-		glNamedBufferSubData(m_scales_instance_vbo, 0, sizeof(m_scales), m_scales);
+		glNamedBufferData(m_layer_scales_buffer, sizeof(m_layer_scales), m_layer_scales, GL_DYNAMIC_READ);
 	}
 
 	void glerminal::glfw_key_handler(GLFWwindow* window, int key, int scancode, int action, int mods)
@@ -841,18 +850,18 @@ void glerminal_offset(unsigned char x, unsigned char y, unsigned char layer, flo
 	GLERMINAL_G->offset(x, y, layer, x_offset, y_offset);
 }
 
-void glerminal_color(unsigned char x, unsigned char y, unsigned char layer, unsigned int color)
+void glerminal_layer_color(unsigned char layer, unsigned int color)
 {
 	if (!GLERMINAL_G) { return; }
 
-	GLERMINAL_G->color(x, y, layer, color);
+	GLERMINAL_G->layer_color(layer, color);
 }
 
-void glerminal_scale(unsigned char x, unsigned char y, unsigned char layer, float scale)
+void glerminal_layer_scale(unsigned char layer, float scale)
 {
 	if (!GLERMINAL_G) { return; }
 
-	GLERMINAL_G->scale(x, y, layer, scale);
+	GLERMINAL_G->layer_scale(layer, scale);
 }
 
 int glerminal_load_sprites_file(const char* filename)