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d3d: Apply a half pixel offset when rendering.

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Makes things a lot sharper, although there still seem to be problems.
This makes it so the viewport aligns with pixel edges rather than centers
at whole integers.
This commit is contained in:
Unknown W. Brackets 2014-09-13 22:01:32 -07:00
parent 0d1a529b01
commit ff3c5075fa
2 changed files with 25 additions and 8 deletions
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12
GPU/Directx9/FramebufferDX9.cpp
View File

@ -449,6 +449,10 @@ namespace DX9 {
if (gstate_c.curRTWidth != vfb->width || gstate_c.curRTHeight != vfb->height) {
shaderManager_->DirtyUniform(DIRTY_PROJTHROUGHMATRIX);
}
if (gstate_c.curRTRenderWidth != vfb->renderWidth || gstate_c.curRTRenderHeight != vfb->renderHeight) {
shaderManager_->DirtyUniform(DIRTY_PROJMATRIX);
shaderManager_->DirtyUniform(DIRTY_PROJTHROUGHMATRIX);
}
}
void FramebufferManagerDX9::NotifyRenderFramebufferSwitched(VirtualFramebuffer *prevVfb, VirtualFramebuffer *vfb) {
@ -497,6 +501,10 @@ namespace DX9 {
if (gstate_c.curRTWidth != vfb->width || gstate_c.curRTHeight != vfb->height) {
shaderManager_->DirtyUniform(DIRTY_PROJTHROUGHMATRIX);
}
if (gstate_c.curRTRenderWidth != vfb->renderWidth || gstate_c.curRTRenderHeight != vfb->renderHeight) {
shaderManager_->DirtyUniform(DIRTY_PROJMATRIX);
shaderManager_->DirtyUniform(DIRTY_PROJTHROUGHMATRIX);
}
}
void FramebufferManagerDX9::NotifyRenderFramebufferUpdated(VirtualFramebuffer *vfb, bool vfbFormatChanged) {
@ -512,6 +520,10 @@ namespace DX9 {
if (gstate_c.curRTWidth != vfb->width || gstate_c.curRTHeight != vfb->height) {
shaderManager_->DirtyUniform(DIRTY_PROJTHROUGHMATRIX);
}
if (gstate_c.curRTRenderWidth != vfb->renderWidth || gstate_c.curRTRenderHeight != vfb->renderHeight) {
shaderManager_->DirtyUniform(DIRTY_PROJMATRIX);
shaderManager_->DirtyUniform(DIRTY_PROJTHROUGHMATRIX);
}
}
void FramebufferManagerDX9::CopyDisplayToOutput() {

21
GPU/Directx9/ShaderManagerDX9.cpp
View File

@ -202,11 +202,13 @@ void ShaderManagerDX9::VSSetMatrix(int creg, const float* pMatrix) {
}
// Depth in ogl is between -1;1 we need between 0;1 and optionally reverse it
void ConvertProjMatrixToD3D(Matrix4x4 & in, bool invert) {
static void ConvertProjMatrixToD3D(Matrix4x4 & in, bool invertedX, bool invertedY, bool invertedZ) {
Matrix4x4 s;
Matrix4x4 t;
s.setScaling(Vec3(1, 1, invert ? -0.5 : 0.5f));
t.setTranslation(Vec3(0, 0, 0.5f));
s.setScaling(Vec3(1, 1, invertedZ ? -0.5 : 0.5f));
float xoff = 0.5f / gstate_c.curRTRenderWidth;
float yoff = 0.5f / gstate_c.curRTRenderHeight;
t.setTranslation(Vec3(invertedX ? xoff : -xoff, invertedY ? -yoff : yoff, 0.5f));
in = in * s * t;
}
@ -230,17 +232,20 @@ void ShaderManagerDX9::VSUpdateUniforms(int dirtyUniforms) {
if (dirtyUniforms & DIRTY_PROJMATRIX) {
Matrix4x4 flippedMatrix;
memcpy(&flippedMatrix, gstate.projMatrix, 16 * sizeof(float));
if (gstate_c.vpHeight < 0) {
const bool invertedY = gstate_c.vpHeight < 0;
if (invertedY) {
flippedMatrix[5] = -flippedMatrix[5];
flippedMatrix[13] = -flippedMatrix[13];
}
if (gstate_c.vpWidth < 0) {
const bool invertedX = gstate_c.vpWidth < 0;
if (invertedX) {
flippedMatrix[0] = -flippedMatrix[0];
flippedMatrix[12] = -flippedMatrix[12];
}
bool invert = gstate_c.vpDepth < 0;
ConvertProjMatrixToD3D(flippedMatrix, invert);
const bool invertedZ = gstate_c.vpDepth < 0;
ConvertProjMatrixToD3D(flippedMatrix, invertedX, invertedY, invertedZ);
VSSetMatrix(CONST_VS_PROJ, flippedMatrix.getReadPtr());
}
@ -248,7 +253,7 @@ void ShaderManagerDX9::VSUpdateUniforms(int dirtyUniforms) {
Matrix4x4 proj_through;
proj_through.setOrtho(0.0f, gstate_c.curRTWidth, gstate_c.curRTHeight, 0, 0, 1);
ConvertProjMatrixToD3D(proj_through, false);
ConvertProjMatrixToD3D(proj_through, false, false, false);
VSSetMatrix(CONST_VS_PROJ_THROUGH, proj_through.getReadPtr());
}