mirror of
https://github.com/citra-emu/citra.git
synced 2024-11-22 10:40:05 +00:00
added initial renderer code
This commit is contained in:
parent
e4d1ad4bda
commit
080f847550
@ -51,6 +51,9 @@ public:
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~RendererBase() {
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}
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/// Swap buffers (render frame)
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virtual void SwapBuffers() = 0;
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/**
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* Blits the EFB to the external framebuffer (XFB)
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* @param src_rect Source rectangle in EFB to copy
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@ -71,6 +74,24 @@ public:
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virtual void Clear(const Rect& rect, bool enable_color, bool enable_alpha, bool enable_z,
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u32 color, u32 z) = 0;
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/// Sets the renderer viewport location, width, and height
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virtual void SetViewport(int x, int y, int width, int height) = 0;
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/// Sets the renderer depthrange, znear and zfar
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virtual void SetDepthRange(double znear, double zfar) = 0;
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/* Sets the scissor box
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* @param rect Renderer rectangle to set scissor box to
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*/
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virtual void SetScissorBox(const Rect& rect) = 0;
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/**
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* Sets the line and point size
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* @param line_width Line width to use
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* @param point_size Point size to use
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*/
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virtual void SetLinePointSize(f32 line_width, f32 point_size) = 0;
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/**
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* Set a specific render mode
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* @param flag Render flags mode to enable
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@ -95,11 +116,6 @@ public:
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/// Shutdown the renderer
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virtual void ShutDown() = 0;
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/// Converts EFB rectangle coordinates to renderer rectangle coordinates
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//static Rect EFBToRendererRect(const Rect& rect) {
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// return Rect(rect.x0_, kGCEFBHeight - rect.y0_, rect.x1_, kGCEFBHeight - rect.y1_);
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//}
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// Getter/setter functions:
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// ------------------------
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340
src/video_core/src/renderer_opengl/renderer_opengl.cpp
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340
src/video_core/src/renderer_opengl/renderer_opengl.cpp
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@ -0,0 +1,340 @@
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/**
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* Copyright (C) 2014 Citra Emulator
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*
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* @file renderer_opengl.cpp
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* @author bunnei
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* @date 2014-04-05
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* @brief Renderer for OpenGL 3.x
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*
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* @section LICENSE
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details at
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* http://www.gnu.org/copyleft/gpl.html
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*
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* Official project repository can be found at:
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* http://code.google.com/p/gekko-gc-emu/
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*/
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#include "video_core.h"
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#include "renderer_opengl/renderer_opengl.h"
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/// RendererOpenGL constructor
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RendererOpenGL::RendererOpenGL() {
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memset(fbo_, 0, sizeof(fbo_));
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memset(fbo_rbo_, 0, sizeof(fbo_rbo_));
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memset(fbo_depth_buffers_, 0, sizeof(fbo_depth_buffers_));
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resolution_width_ = max(VideoCore::kScreenTopWidth, VideoCore::kScreenBottomWidth);
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resolution_height_ = VideoCore::kScreenTopHeight + VideoCore::kScreenBottomHeight;
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}
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/// RendererOpenGL destructor
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RendererOpenGL::~RendererOpenGL() {
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}
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/// Swap buffers (render frame)
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void RendererOpenGL::SwapBuffers() {
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glClearColor(1.0f, 1.0f, 0.0f, 1.0f);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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ResetRenderState();
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// EFB->XFB copy
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// TODO(bunnei): This is a hack and does not belong here. The copy should be triggered by some
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// register write We're also treating both framebuffers as a single one in OpenGL.
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Rect framebuffer_size(0, 0, VideoCore::kScreenTopWidth,
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VideoCore::kScreenTopHeight + VideoCore::kScreenBottomHeight);
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CopyToXFB(framebuffer_size, framebuffer_size);
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// XFB->Window copy
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RenderFramebuffer();
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// Swap buffers
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render_window_->PollEvents();
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render_window_->SwapBuffers();
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// Switch back to EFB and clear
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo_[kFramebuffer_EFB]);
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RestoreRenderState();
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}
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/**
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* Blits the EFB to the external framebuffer (XFB)
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* @param src_rect Source rectangle in EFB to copy
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* @param dst_rect Destination rectangle in EFB to copy to
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* @param dest_height Destination height in pixels
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*/
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void RendererOpenGL::CopyToXFB(const Rect& src_rect, const Rect& dst_rect) {
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ResetRenderState();
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// Render target is destination framebuffer
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo_[kFramebuffer_VirtualXFB]);
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glViewport(0, 0, resolution_width_, resolution_height_);
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// Render source is our EFB
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glBindFramebuffer(GL_READ_FRAMEBUFFER, fbo_[kFramebuffer_EFB]);
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glReadBuffer(GL_COLOR_ATTACHMENT0);
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// Blit
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glBlitFramebuffer(src_rect.x0_, src_rect.y0_, src_rect.x1_, src_rect.y1_,
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dst_rect.x0_, dst_rect.y1_, dst_rect.x1_, dst_rect.y0_,
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GL_COLOR_BUFFER_BIT, GL_LINEAR);
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glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
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RestoreRenderState();
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}
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/**
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* Clear the screen
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* @param rect Screen rectangle to clear
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* @param enable_color Enable color clearing
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* @param enable_alpha Enable alpha clearing
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* @param enable_z Enable depth clearing
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* @param color Clear color
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* @param z Clear depth
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*/
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void RendererOpenGL::Clear(const Rect& rect, bool enable_color, bool enable_alpha, bool enable_z,
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u32 color, u32 z) {
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GLboolean const color_mask = enable_color ? GL_TRUE : GL_FALSE;
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GLboolean const alpha_mask = enable_alpha ? GL_TRUE : GL_FALSE;
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ResetRenderState();
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// Clear color
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glColorMask(color_mask, color_mask, color_mask, alpha_mask);
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glClearColor(float((color >> 16) & 0xFF) / 255.0f, float((color >> 8) & 0xFF) / 255.0f,
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float((color >> 0) & 0xFF) / 255.0f, float((color >> 24) & 0xFF) / 255.0f);
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// Clear depth
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glDepthMask(enable_z ? GL_TRUE : GL_FALSE);
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glClearDepth(float(z & 0xFFFFFF) / float(0xFFFFFF));
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// Specify the rectangle of the EFB to clear
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glEnable(GL_SCISSOR_TEST);
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glScissor(rect.x0_, rect.y1_, rect.width(), rect.height());
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// Clear it!
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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RestoreRenderState();
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}
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/// Sets the renderer viewport location, width, and height
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void RendererOpenGL::SetViewport(int x, int y, int width, int height) {
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glViewport(x, y, width, height);
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}
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/// Sets the renderer depthrange, znear and zfar
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void RendererOpenGL::SetDepthRange(double znear, double zfar) {
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glDepthRange(znear, zfar);
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}
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/* Sets the scissor box
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* @param rect Renderer rectangle to set scissor box to
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*/
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void RendererOpenGL::SetScissorBox(const Rect& rect) {
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glScissor(rect.x0_, rect.y1_, rect.width(), rect.height());
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}
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/**
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* Sets the line and point size
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* @param line_width Line width to use
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* @param point_size Point size to use
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*/
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void RendererOpenGL::SetLinePointSize(f32 line_width, f32 point_size) {
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glLineWidth((GLfloat)line_width);
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glPointSize((GLfloat)point_size);
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}
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/**
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* Set a specific render mode
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* @param flag Render flags mode to enable
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*/
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void RendererOpenGL::SetMode(kRenderMode flags) {
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if(flags & kRenderMode_ZComp) {
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glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
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}
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if(flags & kRenderMode_Multipass) {
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glEnable(GL_DEPTH_TEST);
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glDepthMask(GL_FALSE);
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glDepthFunc(GL_EQUAL);
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}
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if (flags & kRenderMode_UseDstAlpha) {
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glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_TRUE);
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glDisable(GL_BLEND);
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}
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last_mode_ |= flags;
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}
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/// Reset the full renderer API to the NULL state
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void RendererOpenGL::ResetRenderState() {
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glDisable(GL_SCISSOR_TEST);
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glDisable(GL_DEPTH_TEST);
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glDisable(GL_CULL_FACE);
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glDisable(GL_BLEND);
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glDepthMask(GL_FALSE);
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glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
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}
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/// Restore the full renderer API state - As the game set it
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void RendererOpenGL::RestoreRenderState() {
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo_[kFramebuffer_EFB]);
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//gp::XF_UpdateViewport();
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SetViewport(0, 0, resolution_width_, resolution_height_);
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SetDepthRange(0.0f, 1.0f);
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//SetGenerationMode();
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glEnable(GL_CULL_FACE);
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glFrontFace(GL_CCW);
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//glEnable(GL_SCISSOR_TEST);
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//gp::BP_SetScissorBox();
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glDisable(GL_SCISSOR_TEST);
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//SetColorMask(gp::g_bp_regs.cmode0);
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glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
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//SetDepthMode();
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glDisable(GL_DEPTH_TEST);
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glDepthMask(GL_FALSE);
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//SetBlendMode(gp::g_bp_regs.cmode0, gp::g_bp_regs.cmode1, true);
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//if (common::g_config->current_renderer_config().enable_wireframe) {
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// glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
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//} else {
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// glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
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//}
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}
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/// Initialize the FBO
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void RendererOpenGL::InitFramebuffer() {
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// TODO(en): This should probably be implemented with the top screen and bottom screen as
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// separate framebuffers
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// Init the FBOs
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// -------------
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glGenFramebuffers(kMaxFramebuffers, fbo_); // Generate primary framebuffer
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glGenRenderbuffers(kMaxFramebuffers, fbo_rbo_); // Generate primary RBOs
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glGenRenderbuffers(kMaxFramebuffers, fbo_depth_buffers_); // Generate primary depth buffer
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for (int i = 0; i < kMaxFramebuffers; i++) {
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// Generate color buffer storage
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glBindRenderbuffer(GL_RENDERBUFFER, fbo_rbo_[i]);
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glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, resolution_width_, resolution_height_);
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// Generate depth buffer storage
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glBindRenderbuffer(GL_RENDERBUFFER, fbo_depth_buffers_[i]);
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glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT32, resolution_width_,
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resolution_height_);
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// Attach the buffers
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo_[i]);
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glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT,
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GL_RENDERBUFFER, fbo_depth_buffers_[i]);
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glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
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GL_RENDERBUFFER, fbo_rbo_[i]);
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// Check for completeness
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if (GL_FRAMEBUFFER_COMPLETE == glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER)) {
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NOTICE_LOG(RENDER, "framebuffer(%d) initialized ok", i);
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} else {
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ERROR_LOG(RENDER, "couldn't create OpenGL frame buffer");
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exit(1);
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}
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}
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glBindFramebuffer(GL_FRAMEBUFFER, 0); // Unbind our frame buffer(s)
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}
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/// Blit the FBO to the OpenGL default framebuffer
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void RendererOpenGL::RenderFramebuffer() {
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// Render target is default framebuffer
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
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glViewport(0, 0, resolution_width_, resolution_height_);
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// Render source is our XFB
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glBindFramebuffer(GL_READ_FRAMEBUFFER, fbo_[kFramebuffer_VirtualXFB]);
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glReadBuffer(GL_COLOR_ATTACHMENT0);
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// Blit
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glBlitFramebuffer(0, 0, resolution_width_, resolution_height_, 0, 0,
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render_window_->client_area_width(), render_window_->client_area_height(),
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GL_COLOR_BUFFER_BIT, GL_LINEAR);
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// Update the FPS count
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UpdateFramerate();
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// Rebind EFB
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo_[kFramebuffer_EFB]);
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current_frame_++;
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}
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/// Updates the framerate
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void RendererOpenGL::UpdateFramerate() {
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}
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/**
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* Set the emulator window to use for renderer
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* @param window EmuWindow handle to emulator window to use for rendering
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*/
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void RendererOpenGL::SetWindow(EmuWindow* window) {
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render_window_ = window;
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}
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/// Initialize the renderer
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void RendererOpenGL::Init() {
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render_window_->MakeCurrent();
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glShadeModel(GL_SMOOTH);
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glStencilFunc(GL_ALWAYS, 0, 0);
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glBlendFunc(GL_ONE, GL_ONE);
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glViewport(0, 0, resolution_width_, resolution_height_);
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glClearDepth(1.0f);
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glEnable(GL_DEPTH_TEST);
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glDisable(GL_LIGHTING);
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glDepthFunc(GL_LEQUAL);
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glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
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glDisable(GL_STENCIL_TEST);
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glEnable(GL_SCISSOR_TEST);
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glScissor(0, 0, resolution_width_, resolution_height_);
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glClearDepth(1.0f);
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GLenum err = glewInit();
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if (GLEW_OK != err) {
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ERROR_LOG(RENDER, " Failed to initialize GLEW! Error message: \"%s\". Exiting...",
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glewGetErrorString(err));
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exit(-1);
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}
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// Initialize everything else
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// --------------------------
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InitFramebuffer();
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NOTICE_LOG(RENDER, "GL_VERSION: %s\n", glGetString(GL_VERSION));
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}
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/// Shutdown the renderer
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void RendererOpenGL::ShutDown() {
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}
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138
src/video_core/src/renderer_opengl/renderer_opengl.h
Normal file
138
src/video_core/src/renderer_opengl/renderer_opengl.h
Normal file
@ -0,0 +1,138 @@
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/**
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* Copyright (C) 2014 Citra Emulator
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*
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* @file renderer_opengl.h
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* @author bunnei
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* @date 2014-04-05
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* @brief Renderer for OpenGL 3.x
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*
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* @section LICENSE
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
|
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* WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
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* General Public License for more details at
|
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* http://www.gnu.org/copyleft/gpl.html
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*
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* Official project repository can be found at:
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* http://code.google.com/p/gekko-gc-emu/
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*/
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#pragma once
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#include <GL/glew.h>
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#include "common.h"
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#include "emu_window.h"
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#include "renderer_base.h"
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class RendererOpenGL : virtual public RendererBase {
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public:
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static const int kMaxFramebuffers = 2; ///< Maximum number of framebuffers
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RendererOpenGL();
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~RendererOpenGL();
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/// Swap buffers (render frame)
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void SwapBuffers();
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/**
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* Blits the EFB to the external framebuffer (XFB)
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* @param src_rect Source rectangle in EFB to copy
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* @param dst_rect Destination rectangle in EFB to copy to
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* @param dest_height Destination height in pixels
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*/
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void CopyToXFB(const Rect& src_rect, const Rect& dst_rect);
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/**
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* Clear the screen
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* @param rect Screen rectangle to clear
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* @param enable_color Enable color clearing
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* @param enable_alpha Enable alpha clearing
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* @param enable_z Enable depth clearing
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* @param color Clear color
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* @param z Clear depth
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*/
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void Clear(const Rect& rect, bool enable_color, bool enable_alpha, bool enable_z,
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u32 color, u32 z);
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/// Sets the renderer viewport location, width, and height
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void SetViewport(int x, int y, int width, int height);
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/// Sets the renderer depthrange, znear and zfar
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void SetDepthRange(double znear, double zfar);
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/* Sets the scissor box
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* @param rect Renderer rectangle to set scissor box to
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*/
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void SetScissorBox(const Rect& rect);
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/**
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||||
* Sets the line and point size
|
||||
* @param line_width Line width to use
|
||||
* @param point_size Point size to use
|
||||
*/
|
||||
void SetLinePointSize(f32 line_width, f32 point_size);
|
||||
|
||||
/**
|
||||
* Set a specific render mode
|
||||
* @param flag Render flags mode to enable
|
||||
*/
|
||||
void SetMode(kRenderMode flags);
|
||||
|
||||
/// Reset the full renderer API to the NULL state
|
||||
void ResetRenderState();
|
||||
|
||||
/// Restore the full renderer API state - As the game set it
|
||||
void RestoreRenderState();
|
||||
|
||||
/**
|
||||
* Set the emulator window to use for renderer
|
||||
* @param window EmuWindow handle to emulator window to use for rendering
|
||||
*/
|
||||
void SetWindow(EmuWindow* window);
|
||||
|
||||
/// Initialize the renderer
|
||||
void Init();
|
||||
|
||||
/// Shutdown the renderer
|
||||
void ShutDown();
|
||||
|
||||
// Framebuffer object(s)
|
||||
// ---------------------
|
||||
|
||||
GLuint fbo_[kMaxFramebuffers]; ///< Framebuffer objects
|
||||
|
||||
private:
|
||||
|
||||
/// Initialize the FBO
|
||||
void InitFramebuffer();
|
||||
|
||||
// Blit the FBO to the OpenGL default framebuffer
|
||||
void RenderFramebuffer();
|
||||
|
||||
/// Updates the framerate
|
||||
void UpdateFramerate();
|
||||
|
||||
EmuWindow* render_window_;
|
||||
u32 last_mode_; ///< Last render mode
|
||||
|
||||
int resolution_width_;
|
||||
int resolution_height_;
|
||||
|
||||
// Framebuffer object(s)
|
||||
// ---------------------
|
||||
|
||||
GLuint fbo_rbo_[kMaxFramebuffers]; ///< Render buffer objects
|
||||
GLuint fbo_depth_buffers_[kMaxFramebuffers]; ///< Depth buffers objects
|
||||
|
||||
DISALLOW_COPY_AND_ASSIGN(RendererOpenGL);
|
||||
};
|
@ -27,7 +27,10 @@
|
||||
#include "log.h"
|
||||
|
||||
#include "core.h"
|
||||
|
||||
#include "video_core.h"
|
||||
#include "renderer_base.h"
|
||||
#include "renderer_opengl/renderer_opengl.h"
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////////////////////////
|
||||
// Video Core namespace
|
||||
@ -67,16 +70,10 @@ void Start() {
|
||||
/// Initialize the video core
|
||||
void Init(EmuWindow* emu_window) {
|
||||
g_emu_window = emu_window;
|
||||
//g_renderer = new RendererGL3();
|
||||
//g_renderer->SetWindow(g_emu_window);
|
||||
//g_renderer->Init();
|
||||
|
||||
//gp::Fifo_Init();
|
||||
//gp::VertexManager_Init();
|
||||
//gp::VertexLoader_Init();
|
||||
//gp::BP_Init();
|
||||
//gp::CP_Init();
|
||||
//gp::XF_Init();
|
||||
g_emu_window->MakeCurrent();
|
||||
g_renderer = new RendererOpenGL();
|
||||
g_renderer->SetWindow(g_emu_window);
|
||||
g_renderer->Init();
|
||||
|
||||
g_current_frame = 0;
|
||||
|
||||
@ -85,7 +82,7 @@ void Init(EmuWindow* emu_window) {
|
||||
|
||||
/// Shutdown the video core
|
||||
void Shutdown() {
|
||||
//delete g_renderer;
|
||||
delete g_renderer;
|
||||
}
|
||||
|
||||
} // namespace
|
||||
|
@ -33,8 +33,19 @@
|
||||
|
||||
namespace VideoCore {
|
||||
|
||||
extern RendererBase* g_renderer; ///< Renderer plugin
|
||||
extern int g_current_frame; ///< Current frame
|
||||
// 3DS Video Constants
|
||||
// -------------------
|
||||
|
||||
static const int kScreenTopWidth = 400; ///< 3DS top screen width
|
||||
static const int kScreenTopHeight = 240; ///< 3DS top screen height
|
||||
static const int kScreenBottomWidth = 320; ///< 3DS bottom screen width
|
||||
static const int kScreenBottomHeight = 240; ///< 3DS bottom screen height
|
||||
|
||||
// Video core renderer
|
||||
// ---------------------
|
||||
|
||||
extern RendererBase* g_renderer; ///< Renderer plugin
|
||||
extern int g_current_frame; ///< Current frame
|
||||
|
||||
/// Start the video core
|
||||
void Start();
|
||||
@ -43,6 +54,6 @@ void Start();
|
||||
void Init(EmuWindow* emu_window);
|
||||
|
||||
/// Shutdown the video core
|
||||
void ShutDown();
|
||||
void Shutdown();
|
||||
|
||||
} // namespace
|
||||
|
@ -19,11 +19,13 @@
|
||||
</ProjectConfiguration>
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<ClCompile Include="src\renderer_opengl\renderer_opengl.cpp" />
|
||||
<ClCompile Include="src\utils.cpp" />
|
||||
<ClCompile Include="src\video_core.cpp" />
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<ClInclude Include="src\renderer_base.h" />
|
||||
<ClInclude Include="src\renderer_opengl\renderer_opengl.h" />
|
||||
<ClInclude Include="src\utils.h" />
|
||||
<ClInclude Include="src\video_core.h" />
|
||||
</ItemGroup>
|
||||
|
@ -3,13 +3,24 @@
|
||||
<ItemGroup>
|
||||
<ClCompile Include="src\video_core.cpp" />
|
||||
<ClCompile Include="src\utils.cpp" />
|
||||
<ClCompile Include="src\renderer_opengl\renderer_opengl.cpp">
|
||||
<Filter>renderer_opengl</Filter>
|
||||
</ClCompile>
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<ClInclude Include="src\renderer_base.h" />
|
||||
<ClInclude Include="src\video_core.h" />
|
||||
<ClInclude Include="src\utils.h" />
|
||||
<ClInclude Include="src\renderer_opengl\renderer_opengl.h">
|
||||
<Filter>renderer_opengl</Filter>
|
||||
</ClInclude>
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<Text Include="CMakeLists.txt" />
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<Filter Include="renderer_opengl">
|
||||
<UniqueIdentifier>{e0245557-dbd4-423e-9399-513d5e99f1e4}</UniqueIdentifier>
|
||||
</Filter>
|
||||
</ItemGroup>
|
||||
</Project>
|
@ -12,7 +12,7 @@
|
||||
<StructMemberAlignment>16Bytes</StructMemberAlignment>
|
||||
<FunctionLevelLinking>true</FunctionLevelLinking>
|
||||
<MultiProcessorCompilation>true</MultiProcessorCompilation>
|
||||
<AdditionalIncludeDirectories>$(SolutionDir)src\common\src;$(SolutionDir)src\core\src;$(SolutionDir)src\citra\src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
|
||||
<AdditionalIncludeDirectories>$(SolutionDir)src\common\src;$(SolutionDir)src\core\src;$(SolutionDir)src\video_core\src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
|
||||
<PreprocessorDefinitions>
|
||||
</PreprocessorDefinitions>
|
||||
<RuntimeTypeInfo>false</RuntimeTypeInfo>
|
||||
|
Loading…
Reference in New Issue
Block a user