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Added texture update batching. Added rect packing.

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bkaradzic
2013-03-02 21:35:09 -08:00
parent c3cef2bb5b
commit 435b83f1ac
8 changed files with 466 additions and 71 deletions
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81
examples/08-update/update.cpp
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@@ -11,9 +11,11 @@
#include "../common/dbg.h"
#include "../common/math.h"
#include "../common/processevents.h"
#include "../common/packrect.h"
#include <stdio.h>
#include <string.h>
#include <list>
struct PosColorVertex
{
@@ -205,11 +207,7 @@ int _main_(int _argc, char** _argv)
bgfx::destroyFragmentShader(fsh);
uint32_t blockSide = 0;
uint32_t blockX = 0;
uint32_t blockY = 0;
const uint32_t blockWidth = 8;
const uint32_t blockHeight = 8;
const uint32_t textureSide = 256;
const uint32_t textureSide = 2048;
bgfx::TextureHandle textureCube =
bgfx::createTextureCube(6
@@ -219,15 +217,18 @@ int _main_(int _argc, char** _argv)
, BGFX_TEXTURE_MIN_POINT|BGFX_TEXTURE_MAG_POINT|BGFX_TEXTURE_MIP_POINT
);
bgfx::TextureInfo ti;
bgfx::calcTextureSize(ti, blockWidth, blockHeight, 1, 1, bgfx::TextureFormat::BGRA8);
uint8_t rr = rand()%255;
uint8_t gg = rand()%255;
uint8_t bb = rand()%255;
int64_t updateTime = 0;
RectPackCubeT<256> cube(textureSide);
uint32_t hit = 0;
uint32_t miss = 0;
std::list<PackCube> quads;
while (!processEvents(width, height, debug, reset) )
{
// Set view 0 default viewport.
@@ -252,43 +253,53 @@ int _main_(int _argc, char** _argv)
if (now > updateTime)
{
// updateTime = now + freq/10;
const bgfx::Memory* mem = bgfx::alloc(ti.storageSize);
uint8_t* data = (uint8_t*)mem->data;
for (uint32_t ii = 0, num = ti.storageSize*8/ti.bitsPerPixel; ii < num; ++ii)
PackCube face;
uint32_t bw = bx::uint16_max(1, rand()%(textureSide/4) );
uint32_t bh = bx::uint16_max(1, rand()%(textureSide/4) );
if (cube.find(bw, bh, face) )
{
data[0] = bb;
data[1] = rr;
data[2] = gg;
data[3] = 0xff;
data += 4;
}
quads.push_back(face);
bgfx::updateTextureCube(textureCube, blockSide, 0, blockX, blockY, blockWidth, blockHeight, mem);
++hit;
bgfx::TextureInfo ti;
const Pack2D& rect = face.m_rect;
bgfx::calcTextureSize(ti, rect.m_width, rect.m_height, 1, 1, bgfx::TextureFormat::BGRA8);
blockX += 8;
if (blockX >= textureSide)
{
blockX = 0;
blockY += 8;
if (blockY >= textureSide)
// updateTime = now + freq/10;
const bgfx::Memory* mem = bgfx::alloc(ti.storageSize);
uint8_t* data = (uint8_t*)mem->data;
for (uint32_t ii = 0, num = ti.storageSize*8/ti.bitsPerPixel; ii < num; ++ii)
{
rr = rand()%255;
gg = rand()%255;
bb = rand()%255;
data[0] = bb;
data[1] = rr;
data[2] = gg;
data[3] = 0xff;
data += 4;
}
blockY = 0;
++blockSide;
bgfx::updateTextureCube(textureCube, face.m_side, 0, rect.m_x, rect.m_y, rect.m_width, rect.m_height, mem);
if (blockSide > 5)
{
blockSide = 0;
}
rr = rand()%255;
gg = rand()%255;
bb = rand()%255;
}
else
{
++miss;
for (uint32_t ii = 0, num = bx::uint32_min(10, (uint32_t)quads.size() ); ii < num; ++ii)
{
const PackCube& face = quads.front();
cube.clear(face);
quads.pop_front();
}
}
}
bgfx::dbgTextPrintf(0, 4, 0x0f, "hit: %d, miss %d", hit, miss);
float at[3] = { 0.0f, 0.0f, 0.0f };
float eye[3] = { 0.0f, 0.0f, -5.0f };