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Updated 08-update example.

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This commit is contained in:
bkaradzic 2013-11-08 22:10:31 -08:00
parent d0005a5ff8
commit 08ebd5523d
2 changed files with 73 additions and 9 deletions
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72
examples/08-update/update.cpp
View file

@ -292,13 +292,20 @@ int _main_(int /*_argc*/, char** /*_argv*/)
const uint32_t textureSide = 2048;
bgfx::TextureHandle textureCube =
bgfx::createTextureCube(textureSide
, 1
bgfx::TextureHandle textureCube = bgfx::createTextureCube(textureSide, 1
, bgfx::TextureFormat::BGRA8
, BGFX_TEXTURE_MIN_POINT|BGFX_TEXTURE_MAG_POINT|BGFX_TEXTURE_MIP_POINT
);
const uint32_t texture2dSize = 256;
bgfx::TextureHandle texture2d = bgfx::createTexture2D(texture2dSize, texture2dSize, 1
, bgfx::TextureFormat::BGRA8
, BGFX_TEXTURE_MIN_POINT|BGFX_TEXTURE_MAG_POINT|BGFX_TEXTURE_MIP_POINT
);
uint8_t* texture2dData = (uint8_t*)malloc(texture2dSize*texture2dSize*4);
uint8_t rr = rand()%255;
uint8_t gg = rand()%255;
uint8_t bb = rand()%255;
@ -367,6 +374,37 @@ int _main_(int /*_argc*/, char** /*_argv*/)
quads.pop_front();
}
}
{
// Fill rect.
const uint32_t pitch = texture2dSize*4;
const uint16_t tw = rand()%texture2dSize;
const uint16_t th = rand()%texture2dSize;
const uint16_t tx = rand()%(texture2dSize-tw);
const uint16_t ty = rand()%(texture2dSize-th);
uint8_t* dst = &texture2dData[(ty*texture2dSize+tx)*4];
uint8_t* next = dst + pitch;
// Using makeRef to pass texture memory without copying.
const bgfx::Memory* mem = bgfx::makeRef(dst, tw*th*4);
for (uint32_t yy = 0; yy < th; ++yy, dst = next, next += pitch)
{
for (uint32_t xx = 0; xx < tw; ++xx, dst += 4)
{
dst[0] = bb;
dst[1] = gg;
dst[2] = rr;
dst[3] = 255;
}
}
// Pitch here makes possible to pass data from source to destination
// without need for textures and allocated memory to be the same size.
bgfx::updateTexture2D(texture2d, 0, tx, ty, tw, th, mem, pitch);
}
}
bgfx::dbgTextPrintf(0, 4, 0x0f, "hit: %d, miss %d", hit, miss);
@ -411,6 +449,29 @@ int _main_(int /*_argc*/, char** /*_argv*/)
mtxOrtho(proj, -size, size, size*aspectRatio, -size*aspectRatio, 0.0f, 1000.0f);
bgfx::setViewTransform(1, NULL, proj);
mtxTranslate(mtx, -8.0f - BX_COUNTOF(textures)*0.1f*0.5f, 1.9f, 0.0f);
// Set model matrix for rendering.
bgfx::setTransform(mtx);
// Set vertex and fragment shaders.
bgfx::setProgram(programCmp);
// Set vertex and index buffer.
bgfx::setVertexBuffer(vbh);
bgfx::setIndexBuffer(ibh);
// Bind texture.
bgfx::setTexture(0, u_texColor, texture2d);
// Set render states.
bgfx::setState(BGFX_STATE_DEFAULT);
// Submit primitive for rendering to view 0.
bgfx::submit(1);
for (uint32_t ii = 0; ii < BX_COUNTOF(textures); ++ii)
{
mtxTranslate(mtx, -8.0f - BX_COUNTOF(textures)*0.1f*0.5f + ii*2.1f, 4.0f, 0.0f);
@ -441,6 +502,8 @@ int _main_(int /*_argc*/, char** /*_argv*/)
}
// Cleanup.
free(texture2dData);
bgfx::destroyTexture(textureBc1);
bgfx::destroyTexture(textureBc2);
bgfx::destroyTexture(textureBc3);
@ -450,11 +513,12 @@ int _main_(int /*_argc*/, char** /*_argv*/)
bgfx::destroyTexture(texturePtc14);
bgfx::destroyTexture(texturePtc22);
bgfx::destroyTexture(texturePtc24);
bgfx::destroyTexture(texture2d);
bgfx::destroyTexture(textureCube);
bgfx::destroyIndexBuffer(ibh);
bgfx::destroyVertexBuffer(vbh);
bgfx::destroyProgram(programCmp);
bgfx::destroyProgram(program);
bgfx::destroyTexture(textureCube);
bgfx::destroyUniform(u_texColor);
bgfx::destroyUniform(u_texCube);

4
src/bgfx.cpp
View file

@ -1924,9 +1924,9 @@ namespace bgfx
{
TextureInfo ti;
calcTextureSize(ti, _size, _size, 1, _numMips, _format);
BX_CHECK(ti.storageSize*_sides == _mem->size
BX_CHECK(ti.storageSize*6 == _mem->size
, "createTextureCube: Texture storage size doesn't match passed memory size (storage size: %d, memory size: %d)"
, ti.storageSize*_sides
, ti.storageSize*6
, _mem->size
);
}