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Removed unused dirty rectangle code.

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This commit is contained in:
Bart Trzynadlowski 2012-01-26 02:48:16 +00:00
parent 93d68c5bf8
commit b7980aa562
2 changed files with 5 additions and 42 deletions
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40
Src/Graphics/Render2D.cpp
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@ -26,8 +26,7 @@
*
* To-Do List
* ----------
* - Add dirty rectangles? There is already some inactive code in here for
* this purpose and it needs to be updated or deleted once and for all.
* - Add dirty rectangles?
* - Are v-scroll values 9 or 10 bits?
* - Add fast paths for no scrolling (including unclipped tile rendering).
* - Inline the loops in the tile renderers.
@ -613,30 +612,7 @@ void CRender2D::DrawCompleteLayer(int layerNum, const UINT16 *nameTableBase)
void CRender2D::UpdateLayer(int layerNum)
{
glBindTexture(GL_TEXTURE_2D, texID[layerNum]);
allDirty = true;
if (allDirty)
{
// If everything is dirty, update the whole thing at once
DrawCompleteLayer(layerNum, (UINT16 *) &vram[(0xF8000+layerNum*2*0x2000)/4]);
//DrawRect(layerNum, (UINT16 *) &vram[(0xF8000+layerNum*2*0x2000)/4], 0, 0, 62, 48);
memset(dirty, 0, sizeof(dirty));
}
else
{
// Otherwise, for now, use a dumb approach that updates each rectangle individually
for (int y = 0; y < 64/DIRTY_RECT_HEIGHT; y++)
{
for (int x = 0; x < 48/DIRTY_RECT_WIDTH; x++)
{
if (dirty[layerNum][y][x])
{
DrawRect(layerNum, (UINT16 *) &vram[(0xF8000+layerNum*2*0x2000)/4], x*DIRTY_RECT_WIDTH, y*DIRTY_RECT_HEIGHT, DIRTY_RECT_WIDTH, DIRTY_RECT_HEIGHT);
dirty[layerNum][y][x] = 0; // not dirty anymore
}
}
}
}
DrawCompleteLayer(layerNum, (UINT16 *) &vram[(0xF8000+layerNum*2*0x2000)/4]);
}
@ -707,10 +683,7 @@ void CRender2D::BeginFrame(void)
// Update all layers
for (int i = 0; i < 2; i++)
{
UpdateLayer(i);
}
allDirty = false;
// Draw bottom layer
Setup2D();
@ -743,9 +716,6 @@ void CRender2D::WriteVRAM(unsigned addr, UINT32 data)
{
if (vram[addr/4] == data) // do nothing if no changes
return;
// For now, mark everything as dirty
allDirty = true;
}
@ -802,11 +772,9 @@ bool CRender2D::Init(unsigned xOffset, unsigned yOffset, unsigned xRes, unsigned
xOffs = xOffset;
yOffs = yOffset;
// Clear textures and dirty rectangles (all memory)
// Clear textures
memset(memoryPool, 0, MEMORY_POOL_SIZE);
memset(dirty, 0, sizeof(dirty));
allDirty = true;
// Create textures
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glGenTextures(2, texID);

7
Src/Graphics/Render2D.h
View file

@ -154,7 +154,7 @@ private:
const UINT32 *regs;
// OpenGL data
GLuint texID[2]; // IDs for the 2 layer textures
GLuint texID[2]; // IDs for the 2 layer textures (top and bottom)
unsigned xPixels, yPixels; // display surface resolution
unsigned xOffs, yOffs; // offset
@ -165,11 +165,6 @@ private:
GLuint textureMapLoc; // location of "textureMap" uniform
GLuint colorOffsetLoc; // uniform
// Dirty rectangles (non-zero indicates region is dirty)
UINT8 dirty[2][64/DIRTY_RECT_HEIGHT][48/DIRTY_RECT_WIDTH];
bool allDirty; // global dirty flag (forces everything to be updated)
// Buffers
UINT8 *memoryPool; // all memory is allocated here
UINT32 *surf; // 512x512x32bpp pixel surface