FRONTEND: started map renderer for mini and world map

data/testtexture/shaders/texture.frag

@@ -1,8 +0,0 @@
-$out vec4 o_color;
-$in vec2 v_texcoord;
-
-uniform sampler2D u_texture;
-
-void main() {
-	o_color = $texture2D(u_texture, v_texcoord);
-}

data/testtexture/shaders/texture.vert

@@ -1,11 +0,0 @@
-uniform mat4 u_view;
-uniform mat4 u_model;
-uniform mat4 u_projection;
-$in vec3 a_pos;
-$in vec2 a_texcoord;
-$out vec2 v_texcoord;
-
-void main(void) {
-	v_texcoord = a_texcoord;
-	gl_Position = u_projection * u_view * u_model * vec4(a_pos, 1.0);
-}

src/modules/frontend/MapRenderer.cpp

@@ -0,0 +1,38 @@
+/**
+ * @file
+ */
+
+#include "MapRenderer.h"
+#include "video/ScopedFrameBuffer.h"
+
+namespace frontend {
+
+MapRenderer::MapRenderer(const voxel::WorldPtr& world) :
+		_world(world) {
+}
+
+void MapRenderer::shutdown() {
+	_frameBuffer.shutdown();
+}
+
+bool MapRenderer::init() {
+	// TODO: size
+	const glm::vec2 dim(42, 42);
+	if (!_frameBuffer.init(dim)) {
+		return false;
+	}
+	// TODO: setup shader
+	return true;
+}
+
+void MapRenderer::updateMiniMap() {
+	// TODO: render minimap to texture
+	video::ScopedFrameBuffer scoped(_frameBuffer);
+}
+
+int MapRenderer::renderMiniMap(const video::Camera& camera, const glm::vec2& pos, int* vertices) {
+	// TODO: render fbo in ortho mode to the given coordinates
+	return 0;
+}
+
+}

src/modules/frontend/MapRenderer.h

@@ -0,0 +1,34 @@
+/**
+ * @file
+ */
+
+#pragma once
+
+#include "voxel/World.h"
+#include "video/Camera.h"
+#include "video/FrameBuffer.h"
+#include "FrontendShaders.h"
+
+namespace frontend {
+
+/**
+ * @brief Class to render the minimap and the worldmap of the voxel chunks
+ */
+class MapRenderer {
+private:
+	voxel::WorldPtr _world;
+	video::FrameBuffer _frameBuffer;
+public:
+	MapRenderer(const voxel::WorldPtr& world);
+
+	bool init();
+	void shutdown();
+
+	// TODO: maybe the list of chunks to include in the minimap? That way we can also use this class
+	// for the worldmap
+	void updateMiniMap();
+
+	int renderMiniMap(const video::Camera& camera, const glm::vec2& pos, int* vertices);
+};
+
+}

src/modules/ui/CMakeLists.txt

@@ -11,7 +11,7 @@ set(SRCS
 )
 set(LIB ui)
 add_library(${LIB} ${SRCS})
-generate_shaders(${LIB} ui)
+generate_shaders(${LIB} texture)
 target_link_libraries(${LIB} core io video turbobadger)
 set_target_properties(${LIB} PROPERTIES FOLDER ${LIB})
 

src/modules/ui/ui_renderer_gl.h

@@ -41,7 +41,7 @@ public:
 class UIRendererGL: public TBRendererBatcher {
 private:
 	UIBitmapGL _white;
-	shader::UiShader _shader;
+	shader::TextureShader _shader;
 	GLuint _buffer = 0u;
 	GLuint _vao = 0u;