mirror of
https://github.com/dolphin-emu/dolphin.git
synced 2025-07-24 06:39:46 -06:00
OpenGL: Fixed the screen size adjustment by moving it to Render::Swap(), where the final version of the picture is placed
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@2344 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
John Peterson
@ -592,31 +592,11 @@ bool Renderer::SetScissorRect()
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// Check that the coordinates are good
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if (rc_right >= rc_left && rc_bottom >= rc_top)
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{
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// -----------------------------------------------------------------------
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// XFB supplement, fix the black borders problem
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// ------------------
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// See comment in UpdateViewport() about why I don't the XFB supplement to these options
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//if(g_Config.bStretchToFit && !g_Config.bUseXFB)
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if(false)
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{
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int WidthDifference = 640 - (int)(rc_right - rc_left);
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int HeightDifference = 480 - (int)(rc_bottom - rc_top);
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GLScissorX = (int)rc_left; GLScissorY = -(Renderer::GetTargetHeight() - (int)(rc_bottom));
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GLScissorW = Renderer::GetTargetWidth() + WidthDifference; GLScissorH = Renderer::GetTargetHeight() + HeightDifference;
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}
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// ------------------------
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else
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{
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GLScissorX = (int)rc_left; GLScissorY = Renderer::GetTargetHeight() - (int)(rc_bottom);
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GLScissorW = (int)(rc_right - rc_left); GLScissorH = (int)(rc_bottom - rc_top);
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}
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glScissor(
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GLScissorX, // x = 0
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GLScissorY, // y = 0
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GLScissorW, // width = 640 for example
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GLScissorH // height = 480 for example
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(int)rc_left, // x = 0 for example
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Renderer::GetTargetHeight() - (int)(rc_bottom), // y = 0 for example
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(int)(rc_right-rc_left), // width = 640 for example
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(int)(rc_bottom-rc_top) // height = 480 for example
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);
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return true;
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}
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@ -775,7 +755,12 @@ Renderer::RenderMode Renderer::GetRenderMode()
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return s_RenderMode;
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}
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void Renderer::Swap()
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//////////////////////////////////////////////////////////////////////////////////////
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// This function has the final picture if the XFB functions are not used. We adjust the aspect ratio
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// here.
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// ----------------------
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void Renderer::Swap(const TRectangle& rc)
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{
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OpenGL_Update(); // just updates the render window position and the backbuffer size
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@ -794,8 +779,183 @@ void Renderer::Swap()
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#else
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// render to the real buffer now
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glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); // switch to the backbuffer
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glViewport(OpenGL_GetXoff(), OpenGL_GetYoff(), (int)OpenGL_GetWidth(), (int)OpenGL_GetHeight());
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// -----------------------------------------------------------------------
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// GLViewPort variables
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// ------------------
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/* Work with float values for the XFB supplement and aspect ratio functions. These are default
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values that are used if the XFB supplement and the keep aspect ratio function are unused */
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float FloatGLWidth = (float)OpenGL_GetWidth();
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float FloatGLHeight = (float)OpenGL_GetHeight();
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float FloatXOffset = 0, FloatYOffset = 0;
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// -------------------------------------
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// -----------------------------------------------------------------------
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// XFB supplement, fix the black borders problem
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// ------------------
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/* I'm limiting it to the stretch to fit option because I don't know how the other mode works. The reason
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I don't allow this option together with UseXFB is that they are supplements and the XFB function
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should be able to produce the same result */
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if(g_Config.bStretchToFit && !g_Config.bUseXFB)
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{
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// The rendering window size
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float WinWidth = (float)OpenGL_GetWidth();
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float WinHeight = (float)OpenGL_GetHeight();
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// The fraction of the screen that the image occupies
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// Rc.right and rc.bottom is the original picture pixel size
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/* There is a +1 in Rc (earlier called multirc, the input to this function), but these
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adjustments seems to work better without it. */
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float WidthRatio = (float)(rc.right - 1) / 640.0;
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float HeightRatio = (float)(rc.bottom - 1) / 480.0;
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// The pixel size of the image on the screen, adjusted for the actual window size
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float OldWidth = WidthRatio * (float)WinWidth;
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float OldHeight = HeightRatio * (float)WinHeight;
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// The adjusted width and height
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FloatGLWidth = ceil((float)WinWidth / WidthRatio);
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FloatGLHeight = ceil((float)WinHeight / HeightRatio);
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// The width and height deficit in actual pixels
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float WidthDeficit = (float)WinWidth - OldWidth;
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float HeightDeficit = (float)WinHeight - OldHeight;
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// The picture will be drawn from the bottom so we need this YOffset
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// The X-axis needs no adjustment because the picture begins from the left
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FloatYOffset = -HeightDeficit / HeightRatio;
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// -----------------------------------------------------------------------
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// Logging
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// ------------------
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/*
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Console::ClearScreen();
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Console::Print("Bpmem L:%i T:%i X:%i Y:%i\n", bpmem.copyTexSrcXY.x, bpmem.copyTexSrcXY.y, bpmem.copyTexSrcWH.x, bpmem.copyTexSrcWH.y);
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Console::Print("Config Left:%i Top:%i Width:%i Height:%i\n", g_Config.iScreenLeft, g_Config.iScreenTop, g_Config.iScreenWidth, g_Config.iScreenHeight);
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Console::Print("Input Left:%i Top:%i Right:%i Bottom:%i\n", rc.left, rc.top, rc.right, rc.bottom);
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Console::Print("Old picture: Width[%1.2f]:%4.0f Height[%1.2f]:%4.0f\n", WidthRatio, OldWidth, HeightRatio, OldHeight);
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Console::Print("New picture: Width[%1.2f]:%4.0f Height[%1.2f]:%4.0f YOffset:%4.0f YDeficit:%4.0f\n", WidthRatio, WinWidth, HeightRatio, WinHeight, FloatYOffset, HeightDeficit);
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Console::Print("----------------------------------------------------------------\n");
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*/
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// ------------------------------
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}
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// ------------------------------
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// -----------------------------------------------------------------------
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/* Keep aspect ratio at 4:3. This may be interesting if you for example have a 5:4 screen but don't like
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the stretching, and would rather have a letterbox. */
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// Output: GLWidth, GLHeight, XOffset, YOffset
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// ------------------
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// The rendering window size
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float WinWidth = (float)OpenGL_GetWidth();
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float WinHeight = (float)OpenGL_GetHeight();
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// The rendering window aspect ratio as a fraction of the 4:3 ratio
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float Ratio = WinWidth / WinHeight / (4.0 / 3.0);
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float wAdj, hAdj;
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float ActualRatioW, ActualRatioH;
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float Overflow;
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// Actual pixel size of the picture after adjustment
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float PictureWidth = WinWidth, PictureHeight = WinHeight;
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// This function currently only works together with the Stretch To Fit option
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if (g_Config.bKeepAR && g_Config.bStretchToFit)
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{
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// Check if height or width is the limiting factor. If ratio > 1 the picture is to wide and have to limit the width.
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if (Ratio > 1)
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{
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// ------------------------------------------------
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// Calculate the new width and height for glViewport, this is not the actual size of either the picture or the screen
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// ----------------
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wAdj = Ratio;
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hAdj = 1.0;
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FloatGLWidth = FloatGLWidth / wAdj;
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FloatGLHeight = FloatGLHeight / hAdj;
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// --------------------
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// ------------------------------------------------
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// Calculate the new X offset
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// ----------------
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// The picture width
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PictureWidth = WinWidth / Ratio;
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// Move the left of the picture to the middle of the screen
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FloatXOffset = FloatXOffset + WinWidth / 2.0;
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// Then remove half the picture height to move it to the horizontal center
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FloatXOffset = FloatXOffset - PictureWidth / 2.0;
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// --------------------
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}
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// The window is to high, we have to limit the height
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else
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{
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// ------------------------------------------------
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// Calculate the new width and height for glViewport, this is not the actual size of either the picture or the screen
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// ----------------
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// Invert the ratio to make it > 1
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Ratio = 1.0 / Ratio;
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wAdj = 1.0;
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hAdj = Ratio;
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FloatGLWidth = FloatGLWidth / wAdj;
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FloatGLHeight = FloatGLHeight / hAdj;
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// --------------------
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// ------------------------------------------------
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// Calculate the new Y offset
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// ----------------
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// The picture height
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PictureHeight = WinHeight / Ratio;
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// Keep the picture on the bottom of the screen, this is needed because YOffset may not be 0 here
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FloatYOffset = FloatYOffset / hAdj;
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// Move the bottom of the picture to the middle of the screen
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FloatYOffset = FloatYOffset + WinHeight / 2.0;
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// Then remove half the picture height to move it to the vertical center
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FloatYOffset = FloatYOffset - PictureHeight / 2.0;
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// --------------------
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}
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// -----------------------------------------------------------------------
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// Logging
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// ------------------
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/*
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Console::Print("Screen Width:%4.0f Height:%4.0f Ratio:%1.2f\n", WinWidth, WinHeight, Ratio);
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Console::Print("GL Width:%4.1f Height:%4.1f\n", FloatGLWidth, FloatGLHeight);
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Console::Print("Picture Width:%4.1f Height:%4.1f YOffset:%4.0f\n", PictureWidth, PictureHeight, FloatYOffset);
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Console::Print("----------------------------------------------------------------\n");
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*/
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// ------------------------------
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}
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// -------------------------------------
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// -----------------------------------------------------------------------
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/* Adjustments to
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FloatGLWidth
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FloatGLHeight
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XOffset
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YOffset
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are done. Calculate the new new windows width and height. */
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// --------------------
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int GLx = OpenGL_GetXoff(); // These two are zero
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int GLy = OpenGL_GetYoff();
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int GLWidth = ceil(FloatGLWidth);
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int GLHeight = ceil(FloatGLHeight);
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// Because there is no round() function we use round(float) = floor(float + 0.5) instead
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int YOffset = floor(FloatYOffset + 0.5);
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int XOffset = floor(FloatXOffset+ 0.5);
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// -------------------------------------
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// Update GLViewPort
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glViewport(
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GLx + XOffset,
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GLy + YOffset,
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GLWidth,
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GLHeight
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);
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// Reset GL state
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ResetGLState();
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// texture map s_RenderTargets[s_curtarget] onto the main buffer
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@ -836,6 +996,8 @@ void Renderer::Swap()
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//Renderer::SetZBufferRender();
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//SaveTexture("tex.tga", GL_TEXTURE_RECTANGLE_ARB, s_ZBufferTarget, GetTargetWidth(), GetTargetHeight());
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}
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////////////////////////////////////////////////
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void Renderer::SwapBuffers()
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{
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@ -1011,7 +1173,8 @@ bool Renderer::SaveRenderTarget(const char* filename, int jpeg)
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}
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//////////////////////////////////////////////////////////////////////////////////////
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// Called from VertexShaderManager
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// Function: This function does not have the final picture. Use Renderer::Swap() to adjust the final picture.
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// Call schedule: Called from VertexShaderManager
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// ----------------------
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void UpdateViewport()
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{
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@ -1043,92 +1206,6 @@ void UpdateViewport()
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// rawViewport[0] = 320, rawViewport[1] = -240
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int scissorXOff = bpmem.scissorOffset.x * 2 - 342;
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int scissorYOff = bpmem.scissorOffset.y * 2 - 342;
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// Used in the XFB supplement and the keep aspect ratio function
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int XOffset = 0, YOffset = 0;
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// -------------------------------------
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// -----------------------------------------------------------------------
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/* XFB supplement, fix the black borders problem. This has to be used together with the adjustment
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of glScissor in Renderer::SetScissorRect() */
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// ------------------
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/* I'm limiting it to the stretch to fit option because I don't know how the other mode works. The reason
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I don't allow this option together with UseXFB is that they are supplements and the XFB function
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should be able to produce the same result */
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//if(g_Config.bStretchToFit && !g_Config.bUseXFB)
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if (false)
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{
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XOffset = (640 - GLScissorW);
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YOffset = (480 - GLScissorH);
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FloatGLWidth = FloatGLWidth - XOffset;
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FloatGLHeight = FloatGLHeight - YOffset;
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}
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// ------------------------
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// -----------------------------------------------------------------------
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// Keep aspect ratio at 4:3
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// Output: GLWidth, GLHeight, XOffset, YOffset
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// ------------------
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// Internal functions
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float FourThree = 4.0f / 3.0f;
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float wAdj, hAdj;
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float actualRatiow, actualRatioh;
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int overfl;
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int actualWid, actualHei;
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// The rendering window width and height
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int WinW = OpenGL_GetWidth();
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int WinH = OpenGL_GetHeight();
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// The rendering window aspect ratio
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float Ratio = (float)WinW / (float)WinH / FourThree;
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// The XOffset and YOffset values are currently only used in the Stretch To Fit option
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if (g_Config.bKeepAR && g_Config.bStretchToFit)
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{
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// Check if height or width is the limiting factor. If ratio > 1 the picture is to wide and have to limit the width.
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if (Ratio > 1)
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{
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wAdj = Ratio;
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hAdj = 1;
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GLWidth = (int)ceil(FloatGLWidth / wAdj);
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GLHeight = (int)ceil(FloatGLHeight / hAdj);
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actualWid = (int)ceil((float)WinW / Ratio);
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// The picture compared to the screen
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actualRatiow = (float)actualWid / (float)GLWidth;
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overfl = (int)ceil((WinW - actualWid) / actualRatiow);
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XOffset = XOffset + overfl / 2;
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}
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// The window is to high, we have to limit the height
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else
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{
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// Invert the ratio
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Ratio = 1 / Ratio;
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wAdj = 1;
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hAdj = Ratio;
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GLWidth = (int)ceil(FloatGLWidth / wAdj);
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GLHeight = (int)ceil(FloatGLHeight / hAdj);
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actualHei = (int)ceil((float)WinH / Ratio);
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// The picture compared to the screen
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actualRatioh = (float)actualHei / (float)GLHeight;
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overfl = (int)ceil((WinH - actualHei) / actualRatioh);
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YOffset = YOffset + overfl / 2;
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}
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}
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// Don't adjust the position of screen size
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else
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{
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// Round up to the nearest integer
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GLWidth = (int)ceil(FloatGLWidth);
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GLHeight = (int)ceil(FloatGLHeight);
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}
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// -------------------------------------
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@ -1137,8 +1214,11 @@ void UpdateViewport()
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// ------------------
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if (g_Config.bStretchToFit)
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{
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GLx = (int)(xfregs.rawViewport[3] - xfregs.rawViewport[0] - 342 - scissorXOff) + XOffset;
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GLy = Renderer::GetTargetHeight() - ((int)(xfregs.rawViewport[4] - xfregs.rawViewport[1] - 342 - scissorYOff)) + YOffset;
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GLx = (int)(xfregs.rawViewport[3] - xfregs.rawViewport[0] - 342 - scissorXOff);
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GLy = Renderer::GetTargetHeight() - ((int)(xfregs.rawViewport[4] - xfregs.rawViewport[1] - 342 - scissorYOff));
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// Round up to the nearest integer
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GLWidth = (int)ceil(FloatGLWidth);
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GLHeight = (int)ceil(FloatGLHeight);
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}
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// -----------------------------------------------------------------------
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// Stretch picture with increased internal resolution
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@ -1180,7 +1260,6 @@ void UpdateViewport()
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GetWindowRect(Top, &RcTop);
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GetWindowRect(Parent, &RcParent);
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GetWindowRect(Child, &RcChild);
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//Console::ClearScreen();
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Console::Print("----------------------------------------------------------------\n");
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Block a user