Initial implementation of Vulkan backend

[libs/gl.git] / source / render / renderer.h

diff --git a/source/render/renderer.h b/source/render/renderer.h
index 0371e8374a6a9207faf913f13c16f653cf75fac1..ffaa917dd4f5b8dd772ba5ce008c7f9d1fc372f7 100644 (file)
--- a/source/render/renderer.h
+++ b/source/render/renderer.h
@@ -5,8 +5,8 @@
 #include <vector>
 #include "commands.h"
 #include "matrix.h"
-#include "pipelinestate.h"
 #include "programdata.h"
+#include "renderer_backend.h"
 #include "tag.h"
 
 namespace Msp {
@@ -39,8 +39,10 @@ Renderables can save the state by pushing it on the stack before beginning
 their work, and pop it afterwards to restore it without disturbing state set
 by outer scopes.
 */
-class Renderer
+class Renderer: public RendererBackend
 {
+       friend RendererBackend;
+
 public:
        /**
        RAII helper class for pushing state on the stack.
@@ -98,25 +100,28 @@ private:
                SHADER_DATA = 16
        };
 
+       unsigned frame_index = 0;
        unsigned char changed = 0;
        std::vector<State> state_stack;
-       State *state;
+       State *current_state = 0;
        ProgramData standard_shdata;
        std::vector<BoundProgramData> shdata_stack;
        std::vector<BoundTexture> texture_stack;
-       PipelineState pipeline_state;
        Commands commands;
 
 public:
        Renderer();
-       ~Renderer();
 
+       /** Begins rendering, allowing commands to be issued. */
+       void begin();
 
-       /** Unbinds all objects and resets related state.  There must be no unpopped
-       state in the stack.  The Renderer remains valid and may be reused for
-       further rendering. */
+       /** Ends rendering.  Any global state is reset to defaults.  No further
+       commands are allowed before the next call to begin(). */
        void end();
 
+       using RendererBackend::begin;
+       using RendererBackend::end;
+
        /** Saves the current state so it can be restored later. */
        void push_state();
 
@@ -124,25 +129,26 @@ public:
        push_state call. */
        void pop_state();
 
+private:
+       State &get_state() const;
+
+public:
        /** Sets the camera to render from.  The model matrix is reset to identity. */
        void set_camera(const Camera &);
 
-       const Camera *get_camera() const { return state->camera; }
+       const Camera *get_camera() const { return get_state().camera; }
 
        /** Replaces the Renderer's model matrix. */
        void set_matrix(const Matrix &);
 
-       /** Applies a transform to the Renderer's model matrix. */
-       void transform(const Matrix &);
-
        /** Returns the current model matrix. */
-       const Matrix &get_matrix() const { return state->model_matrix; }
+       const Matrix &get_matrix() const { return get_state().model_matrix; }
 
        void set_framebuffer(const Framebuffer *);
        void set_viewport(const Rect *);
        void set_scissor(const Rect *);
 
-       const Framebuffer *get_framebuffer() const { return state->framebuffer; }
+       const Framebuffer *get_framebuffer() const { return get_state().framebuffer; }
 
        /** Sets the shader program to use.  As a convenience, uniform values may be
        specified at the same time. */
@@ -169,7 +175,7 @@ public:
        void set_blend(const Blend *);
 
        void set_object_lod_bias(unsigned);
-       unsigned get_object_lod_bias() const { return state->object_lod_bias; }
+       unsigned get_object_lod_bias() const { return get_state().object_lod_bias; }
 
        void clear(const ClearValue *);