231 lines
6.7 KiB
C++
231 lines
6.7 KiB
C++
// Copyright (C) 2003-2008 Dolphin Project.
|
|
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, version 2.0.
|
|
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License 2.0 for more details.
|
|
|
|
// A copy of the GPL 2.0 should have been included with the program.
|
|
// If not, see http://www.gnu.org/licenses/
|
|
|
|
// Official SVN repository and contact information can be found at
|
|
// http://code.google.com/p/dolphin-emu/
|
|
|
|
|
|
// Preliminary non-working code.
|
|
|
|
#include "Globals.h"
|
|
#include "GLUtil.h"
|
|
#include "MemoryUtil.h"
|
|
#include "Render.h"
|
|
#include "TextureMngr.h"
|
|
#include "VertexShaderManager.h"
|
|
#include "XFBConvert.h"
|
|
#include "TextureConverter.h"
|
|
|
|
#define XFB_USE_SHADERS 1
|
|
|
|
enum {
|
|
XFB_BUF_HEIGHT = 538, //480,
|
|
// TODO: figure out what to do with PAL
|
|
};
|
|
|
|
|
|
#if XFB_USE_SHADERS
|
|
|
|
static GLuint xfb_decoded_texture;
|
|
|
|
void XFB_Init()
|
|
{
|
|
glGenTextures(1, &xfb_decoded_texture);
|
|
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, xfb_decoded_texture);
|
|
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, 4, XFB_WIDTH, XFB_BUF_HEIGHT, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
|
|
}
|
|
|
|
void XFB_Shutdown()
|
|
{
|
|
glDeleteTextures(1, &xfb_decoded_texture);
|
|
}
|
|
|
|
|
|
void XFB_Write(u8 *xfb_in_ram, const TRectangle& sourceRc, u32 dstWd, u32 dstHt)
|
|
{
|
|
u32 nBackbufferHeight = OpenGL_GetHeight();
|
|
TRectangle renderSrcRc;
|
|
renderSrcRc.left = sourceRc.left;
|
|
renderSrcRc.right = sourceRc.right;
|
|
renderSrcRc.top = nBackbufferHeight - sourceRc.top;
|
|
renderSrcRc.bottom = nBackbufferHeight - sourceRc.bottom;
|
|
TextureConverter::EncodeToRam(Renderer::GetRenderTarget(), renderSrcRc, xfb_in_ram, dstWd, dstHt);
|
|
}
|
|
|
|
void XFB_Draw(u8 *xfb_in_ram, u32 width, u32 height, s32 yOffset)
|
|
{
|
|
TextureConverter::DecodeToTexture(xfb_in_ram, width, height, xfb_decoded_texture);
|
|
|
|
OpenGL_Update(); // just updates the render window position and the backbuffer size
|
|
|
|
Renderer::ResetGLState();
|
|
|
|
TextureMngr::EnableTexRECT(0);
|
|
|
|
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); // switch to the backbuffer
|
|
|
|
glActiveTexture(GL_TEXTURE0);
|
|
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, xfb_decoded_texture);
|
|
|
|
glViewport(OpenGL_GetXoff(), OpenGL_GetYoff(),
|
|
(int)OpenGL_GetWidth(), (int)OpenGL_GetHeight());
|
|
GL_REPORT_ERRORD();
|
|
|
|
float w = (float)width;
|
|
float h = (float)height;
|
|
float yOff = (float)yOffset;
|
|
|
|
glBegin(GL_QUADS);
|
|
glTexCoord2f(w, 0 - yOff); glVertex2f(1, -1);
|
|
glTexCoord2f(w, h - yOff); glVertex2f(1, 1);
|
|
glTexCoord2f(0, h - yOff); glVertex2f(-1, 1);
|
|
glTexCoord2f(0, 0 - yOff); glVertex2f(-1,-1);
|
|
glEnd();
|
|
|
|
TextureMngr::DisableStage(0);
|
|
|
|
Renderer::SwapBuffers();
|
|
|
|
Renderer::RestoreGLState();
|
|
GL_REPORT_ERRORD();
|
|
}
|
|
|
|
#else
|
|
|
|
static GLuint xfb_texture;
|
|
static u8 *xfb_buffer = 0;
|
|
static u8 *efb_buffer = 0;
|
|
static GLuint s_xfbFrameBuffer = 0;
|
|
static GLuint s_xfbRenderBuffer = 0;
|
|
|
|
void XFB_Init()
|
|
{
|
|
// used to render XFB
|
|
xfb_buffer = new u8[XFB_WIDTH * XFB_BUF_HEIGHT * 4];
|
|
memset(xfb_buffer, 0, XFB_WIDTH * XFB_BUF_HEIGHT * 4);
|
|
glGenTextures(1, &xfb_texture);
|
|
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, xfb_texture);
|
|
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, 4, XFB_WIDTH, XFB_HEIGHT, 0, GL_BGRA, GL_UNSIGNED_BYTE, xfb_buffer);
|
|
|
|
// used to render EFB
|
|
glGenFramebuffersEXT(1, &s_xfbFrameBuffer);
|
|
glGenRenderbuffersEXT(1, &s_xfbRenderBuffer);
|
|
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, s_xfbRenderBuffer);
|
|
glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGBA, nBackbufferWidth, nBackbufferHeight);
|
|
|
|
// Ensure efb_buffer is aligned.
|
|
efb_buffer = (u8 *)AllocateMemoryPages(nBackbufferWidth * nBackbufferHeight * 4);
|
|
}
|
|
|
|
void XFB_Shutdown()
|
|
{
|
|
glDeleteFramebuffersEXT(1, &s_xfbFrameBuffer);
|
|
|
|
glDeleteTextures(1, &xfb_texture);
|
|
xfb_texture = 0;
|
|
delete [] xfb_buffer;
|
|
xfb_buffer = 0;
|
|
FreeMemoryPages(efb_buffer, nBackbufferWidth * nBackbufferHeight * 4);
|
|
}
|
|
|
|
|
|
void XFB_Write(u8 *xfb_in_ram, const TRectangle& sourceRc, u32 dstWd, u32 dstHt)
|
|
{
|
|
Renderer::SetRenderMode(Renderer::RM_Normal);
|
|
Renderer::ResetGLState();
|
|
|
|
// Switch to XFB frame buffer.
|
|
Renderer::SetFramebuffer(s_xfbFrameBuffer);
|
|
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, s_xfbRenderBuffer);
|
|
glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_RENDERBUFFER_EXT, s_xfbRenderBuffer);
|
|
GL_REPORT_ERRORD();
|
|
|
|
glViewport(nXoff, nYoff, nBackbufferWidth, nBackbufferHeight);
|
|
|
|
glActiveTexture(GL_TEXTURE0);
|
|
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, Renderer::GetRenderTarget());
|
|
TextureMngr::EnableTexRECT(0);
|
|
for (int i = 1; i < 8; ++i)
|
|
TextureMngr::DisableStage(i);
|
|
GL_REPORT_ERRORD();
|
|
|
|
glBegin(GL_QUADS);
|
|
glTexCoord2f(0, nBackbufferHeight); glVertex2f(-1,-1);
|
|
glTexCoord2f(0, 0); glVertex2f(-1,1);
|
|
glTexCoord2f(nBackbufferWidth, 0); glVertex2f(1,1);
|
|
glTexCoord2f(nBackbufferWidth, nBackbufferHeight); glVertex2f(1,-1);
|
|
glEnd();
|
|
GL_REPORT_ERRORD();
|
|
|
|
int width = sourceRc.right - sourceRc.left;
|
|
int height = sourceRc.bottom - sourceRc.top;
|
|
glReadPixels(sourceRc.left, sourceRc.top, width, height, GL_RGBA, GL_UNSIGNED_BYTE, efb_buffer);
|
|
GL_REPORT_ERRORD();
|
|
|
|
Renderer::SetFramebuffer(0);
|
|
Renderer::RestoreGLState();
|
|
VertexShaderManager::SetViewportChanged();
|
|
|
|
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
|
|
TextureMngr::DisableStage(0);
|
|
|
|
Renderer::RestoreGLState();
|
|
GL_REPORT_ERRORD();
|
|
|
|
// TODO - use shader for conversion
|
|
ConvertToXFB((u32 *)xfb_in_ram, efb_buffer, dstWd, dstHt);
|
|
}
|
|
|
|
void XFB_Draw(u8 *xfb_in_ram, u32 width, u32 height, s32 yOffset)
|
|
{
|
|
OpenGL_Update(); // just updates the render window position and the backbuffer size
|
|
|
|
Renderer::SetRenderMode(Renderer::RM_Normal);
|
|
|
|
// render to the real buffer now
|
|
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); // switch to the backbuffer
|
|
glViewport(nXoff, nYoff, nBackbufferWidth, nBackbufferHeight);
|
|
|
|
Renderer::ResetGLState();
|
|
|
|
// TODO - use shader for conversion
|
|
ConvertFromXFB((u32 *)xfb_buffer, xfb_in_ram, width, height);
|
|
|
|
glActiveTexture(GL_TEXTURE0);
|
|
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, xfb_texture);
|
|
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, 4, width, height, 0, GL_BGRA, GL_UNSIGNED_BYTE, xfb_buffer);
|
|
TextureMngr::EnableTexRECT(0);
|
|
for (int i = 1; i < 8; ++i)
|
|
TextureMngr::DisableStage(i);
|
|
|
|
GL_REPORT_ERRORD();
|
|
|
|
glBegin(GL_QUADS);
|
|
glTexCoord2f(width, height + yOffset); glVertex2f( 1,-1);
|
|
glTexCoord2f(width, 0 + yOffset); glVertex2f( 1, 1);
|
|
glTexCoord2f(0, 0 + yOffset); glVertex2f(-1, 1);
|
|
glTexCoord2f(0, height + yOffset); glVertex2f(-1,-1);
|
|
glEnd();
|
|
|
|
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
|
|
TextureMngr::DisableStage(0);
|
|
|
|
Renderer::SwapBuffers();
|
|
|
|
Renderer::RestoreGLState();
|
|
GL_REPORT_ERRORD();
|
|
}
|
|
|
|
#endif
|