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Faster noise emulation

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This commit is contained in:
Logan McNaughton 2017-02-01 12:38:02 -08:00 committed by Sergey Lipskiy
parent da315520a6
commit cd17543447
2 changed files with 69 additions and 70 deletions
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129
src/NoiseTexture.cpp
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@ -14,8 +14,7 @@ using namespace graphics;
NoiseTexture g_noiseTexture;
NoiseTexture::NoiseTexture()
: m_pTexture(nullptr)
, m_DList(0)
: m_DList(0)
{
}
@ -23,81 +22,83 @@ void NoiseTexture::init()
{
if (config.generalEmulation.enableNoise == 0)
return;
m_pTexture = textureCache().addFrameBufferTexture(false);
m_pTexture->format = G_IM_FMT_RGBA;
m_pTexture->clampS = 1;
m_pTexture->clampT = 1;
m_pTexture->frameBufferTexture = CachedTexture::fbOneSample;
m_pTexture->maskS = 0;
m_pTexture->maskT = 0;
m_pTexture->mirrorS = 0;
m_pTexture->mirrorT = 0;
m_pTexture->realWidth = 640;
m_pTexture->realHeight = 580;
m_pTexture->textureBytes = m_pTexture->realWidth * m_pTexture->realHeight;
textureCache().addFrameBufferTextureSize(m_pTexture->textureBytes);
for (u32 i = 0; i < NOISE_TEX_NUM; ++i) {
m_pTexture[i] = textureCache().addFrameBufferTexture(false);
m_pTexture[i]->format = G_IM_FMT_RGBA;
m_pTexture[i]->clampS = 1;
m_pTexture[i]->clampT = 1;
m_pTexture[i]->frameBufferTexture = CachedTexture::fbOneSample;
m_pTexture[i]->maskS = 0;
m_pTexture[i]->maskT = 0;
m_pTexture[i]->mirrorS = 0;
m_pTexture[i]->mirrorT = 0;
m_pTexture[i]->realWidth = 640;
m_pTexture[i]->realHeight = 580;
m_pTexture[i]->textureBytes = m_pTexture[i]->realWidth * m_pTexture[i]->realHeight;
textureCache().addFrameBufferTextureSize(m_pTexture[i]->textureBytes);
{
Context::InitTextureParams params;
params.handle = m_pTexture->name;
params.width = m_pTexture->realWidth;
params.height = m_pTexture->realHeight;
params.internalFormat = internalcolorFormat::RED;
params.format = colorFormat::RED;
params.dataType = datatype::UNSIGNED_BYTE;
gfxContext.init2DTexture(params);
{
Context::InitTextureParams params;
params.handle = m_pTexture[i]->name;
params.width = m_pTexture[i]->realWidth;
params.height = m_pTexture[i]->realHeight;
params.internalFormat = internalcolorFormat::RED;
params.format = colorFormat::RED;
params.dataType = datatype::UNSIGNED_BYTE;
gfxContext.init2DTexture(params);
}
{
Context::TexParameters params;
params.handle = m_pTexture[i]->name;
params.target = textureTarget::TEXTURE_2D;
params.textureUnitIndex = textureIndices::NoiseTex;
params.minFilter = textureParameters::FILTER_NEAREST;
params.magFilter = textureParameters::FILTER_NEAREST;
gfxContext.setTextureParameters(params);
}
unsigned char ptr[m_pTexture[i]->textureBytes];
for (u32 y = 0; y < m_pTexture[i]->realHeight; ++y) {
for (u32 x = 0; x < m_pTexture[i]->realWidth; ++x)
ptr[x + y*m_pTexture[i]->realWidth] = rand() & 0xFF;
}
{
Context::UpdateTextureDataParams params;
params.handle = m_pTexture[i]->name;
params.textureUnitIndex = textureIndices::NoiseTex;
params.width = 640;
params.height = 580;
params.format = colorFormat::RED;
params.dataType = datatype::UNSIGNED_BYTE;
params.data = ptr;
gfxContext.update2DTexture(params);
}
}
{
Context::TexParameters params;
params.handle = m_pTexture->name;
params.target = textureTarget::TEXTURE_2D;
params.textureUnitIndex = textureIndices::NoiseTex;
params.minFilter = textureParameters::FILTER_NEAREST;
params.magFilter = textureParameters::FILTER_NEAREST;
gfxContext.setTextureParameters(params);
}
// Generate Pixel Buffer Object. Initialize it with max buffer size.
m_pbuf.reset(gfxContext.createPixelWriteBuffer(m_pTexture->textureBytes));
}
void NoiseTexture::destroy()
{
textureCache().removeFrameBufferTexture(m_pTexture);
m_pTexture = nullptr;
m_pbuf.reset();
for (u32 i = 0; i < NOISE_TEX_NUM; ++i) {
textureCache().removeFrameBufferTexture(m_pTexture[i]);
m_pTexture[i] = nullptr;
}
}
void NoiseTexture::update()
{
if (!m_pbuf || m_pTexture == nullptr)
return;
if (m_DList == dwnd().getBuffersSwapCount() || config.generalEmulation.enableNoise == 0)
return;
const u32 dataSize = VI.width*VI.height;
if (dataSize == 0)
return;
PixelBufferBinder<PixelWriteBuffer> binder(m_pbuf.get());
u8* ptr = (u8*)m_pbuf->getWriteBuffer(dataSize);
if (ptr == nullptr) {
while (m_currTex == m_prevTex)
m_currTex = rand() % NOISE_TEX_NUM;
m_prevTex = m_currTex;
if (m_pTexture[m_currTex] == nullptr)
return;
{
Context::BindTextureParameters params;
params.texture = m_pTexture[m_currTex]->name;
params.textureUnitIndex = textureIndices::NoiseTex;
params.target = textureTarget::TEXTURE_2D;
gfxContext.bindTexture(params);
}
for (u32 y = 0; y < VI.height; ++y) {
for (u32 x = 0; x < VI.width; ++x)
ptr[x + y*VI.width] = rand() & 0xFF;
}
m_pbuf->closeWriteBuffer();
Context::UpdateTextureDataParams params;
params.handle = m_pTexture->name;
params.textureUnitIndex = textureIndices::NoiseTex;
params.width = VI.width;
params.height = VI.height;
params.format = colorFormat::RED;
params.dataType = datatype::UNSIGNED_BYTE;
params.data = m_pbuf->getData();
gfxContext.update2DTexture(params);
m_DList = dwnd().getBuffersSwapCount();
}

10
src/NoiseTexture.h
View File

@ -2,9 +2,7 @@
#include <memory>
#include "Types.h"
namespace graphics {
class PixelWriteBuffer;
}
#define NOISE_TEX_NUM 30
struct CachedTexture;
@ -18,9 +16,9 @@ public:
void update();
private:
CachedTexture * m_pTexture;
std::unique_ptr<graphics::PixelWriteBuffer> m_pbuf;
CachedTexture * m_pTexture[NOISE_TEX_NUM];
u32 m_DList;
u32 m_currTex, m_prevTex;
};
extern NoiseTexture g_noiseTexture;
extern NoiseTexture g_noiseTexture;