User:ElFarto/OpenGLBM: Difference between revisions

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ElFarto (talk | contribs)
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This page is no longer needed now we have Vulkan
 
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This is my idea for an new OpenGL API. It's not real, nor is it ever likely to be.


  int64 memorySize = bmGetInteger64(BM_MEMORY_SIZE);
  int maxTextureUnits = bmGetInteger(BM_TEXTURE_UNITS);
 
  //textures
  bmTextureParameters(unit, format, layout, remap, mipmap, dimensions, width, height, depth, pitch, address);
  bmTextureAddressParameters(unit, xwrap, ywrap, zwrap, depthCompare);
  bmTextureFilterParameters(unit, minFilter, maxFilter, maxAnisotropy);
 
  //surfaces
  bmColourSurface(index, type, format, width, height, antialiasing, address, pitch);
  bmDepthSurface(type, format, width, height, antialiasing, address, pitch);
 
  bmBlendMode(index, enabled, rgbEquation, srcRGB, dstRGB, alphaEquation, srcAlpha, dstAlpha);
  bmStencilOp(frontStencilFail, frontDepthFail, frontDepthPass, backStencilFail, backDepthFail, backDepthPass);
  bmStencilFunc(frontFunc, frontRef, frontMask, backFunc, backRef, backMask);
 
  bmDepthFunc(enabled, func);
  bmDepthRange(viewportIndex, near, far);
 
  bmAlphaFunc(enabled, func, ref);//does hardware still have this?
 
  //utility functions
  bmCalculateSize(format, layout, width, height, depth, mipmaps, antialias, *size, *pitch, *alignment); //do we need a separate function for depth?
  anti-aliasing levels (0 = 1 sample, 1 = 2 samples, 2 = 4 samples, 3 = 32x CSAA, etc...)
=vertex arrays=
  bmVertexAttrib(index, components, stride, type, normalise, divisor);
  bmVertexAttribI(index, components, stride, type, divisor);
  bmVertexAttribAddress(index, offset);
  bmElementArray(type, offset);
  bmEnableAttribs(bitmap); //0b101 enables attribute 0 and 2 only
=drawing=
  bmDrawElements(primtype, count, instances, baseVertex, baseInstance);
  bmDrawArrays(primtype, count, instances, baseInstance);
  //indirect functions
=shaders=
  BMShader sh = glCompileShader(shaderType, sourceType, size, *string);
  glGetShaderUCode(sh, &size, &ucodePtr);
  glSetShader(type, offset);
  //functions for getting and setting uniforms
  //functions for shader subroutines
=memory=
  bmCopyToGPU(void *src, size, int64 dst); //+async version
  bmCopyFromGPU(int64 src, size, void *dst); //+async version
  void* bmMapMemory(int64 mem, size); //+flags
  bmUnmapMemory(void* addr);
  //flush commands
=misc=
  clear colour/depth/stencil functions
  viewport functions //+indexed versions
  scissor functions
 
  provoking vertex
 
  flip page function
  alpha-to-coverage functions
 
  point-sprites?
=sync=
  gpu wait command
  cpu wait command
  vsync wait
  flush
 
  vertex/texture cache invalidation
=timers=
=multisampling=
=transform feedback=
=tessalation=
=queries=
  conditional rendering
=texture parameters=
  format = TEXTURE_R8G8B8A8
  layout = linear | tiled
  remap/component swizzle
  mipmap levels
  dimensions/cubemap/type = 1D, 2D, 3D, CUBEMAP, RECTANGLE
  width/height/depth = setting depth on a 2d texture, makes it a 2d array
  pitch = step from begining of one row to the next
  address
  compressed parameter or part of format?
=texture address parameters=
  x/y/z wrap modes
  depth compare mode
=texture filter parameters=
  min filter
  max filter
  anisotropy
=surface parameters=
  type = linear/tiled
 
  colourFormat
  colourAddress
  colourPitch
 
  depthFormat
  depthAddress
  depthPitch
 
  x/y/width/height
 
  antialias

Latest revision as of 14:39, 8 March 2015

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