| /* |
| * Mesa 3-D graphics library |
| * |
| * Copyright (C) 2018 Rhys Perry |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included |
| * in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| * OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| |
| /** |
| * \file conservativeraster.c |
| * glConservativeRasterParameteriNV and glConservativeRasterParameterfNV functions |
| */ |
| |
| #include "conservativeraster.h" |
| #include "context.h" |
| #include "enums.h" |
| |
| static ALWAYS_INLINE void |
| conservative_raster_parameter(GLenum pname, GLfloat param, |
| bool no_error, const char *func) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| |
| if (!no_error && !ctx->Extensions.NV_conservative_raster_dilate && |
| !ctx->Extensions.NV_conservative_raster_pre_snap_triangles) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "%s not supported", func); |
| return; |
| } |
| |
| if (MESA_VERBOSE & VERBOSE_API) |
| _mesa_debug(ctx, "%s(%s, %g)\n", |
| func, _mesa_enum_to_string(pname), param); |
| |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| switch (pname) { |
| case GL_CONSERVATIVE_RASTER_DILATE_NV: |
| if (!no_error && !ctx->Extensions.NV_conservative_raster_dilate) |
| goto invalid_pname_enum; |
| |
| if (!no_error && param<0.0) { |
| _mesa_error(ctx, GL_INVALID_VALUE, "%s(param=%g)", func, param); |
| return; |
| } |
| |
| FLUSH_VERTICES(ctx, 0); |
| ctx->NewDriverState |= |
| ctx->DriverFlags.NewNvConservativeRasterizationParams; |
| |
| ctx->ConservativeRasterDilate = |
| CLAMP(param, |
| ctx->Const.ConservativeRasterDilateRange[0], |
| ctx->Const.ConservativeRasterDilateRange[1]); |
| break; |
| case GL_CONSERVATIVE_RASTER_MODE_NV: |
| if (!no_error && !ctx->Extensions.NV_conservative_raster_pre_snap_triangles) |
| goto invalid_pname_enum; |
| |
| if (!no_error && param != GL_CONSERVATIVE_RASTER_MODE_POST_SNAP_NV && |
| param != GL_CONSERVATIVE_RASTER_MODE_PRE_SNAP_TRIANGLES_NV) { |
| _mesa_error(ctx, GL_INVALID_ENUM, |
| "%s(pname=%s)", func, _mesa_enum_to_string(param)); |
| return; |
| } |
| |
| FLUSH_VERTICES(ctx, 0); |
| ctx->NewDriverState |= |
| ctx->DriverFlags.NewNvConservativeRasterizationParams; |
| |
| ctx->ConservativeRasterMode = param; |
| break; |
| default: |
| goto invalid_pname_enum; |
| break; |
| } |
| |
| return; |
| invalid_pname_enum: |
| if (!no_error) |
| _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", |
| func, _mesa_enum_to_string(pname)); |
| } |
| |
| void GLAPIENTRY |
| _mesa_ConservativeRasterParameteriNV_no_error(GLenum pname, GLint param) |
| { |
| conservative_raster_parameter(pname, param, true, |
| "glConservativeRasterParameteriNV"); |
| } |
| |
| void GLAPIENTRY |
| _mesa_ConservativeRasterParameteriNV(GLenum pname, GLint param) |
| { |
| conservative_raster_parameter(pname, param, false, |
| "glConservativeRasterParameteriNV"); |
| } |
| |
| void GLAPIENTRY |
| _mesa_ConservativeRasterParameterfNV_no_error(GLenum pname, GLfloat param) |
| { |
| conservative_raster_parameter(pname, param, true, |
| "glConservativeRasterParameterfNV"); |
| } |
| |
| void GLAPIENTRY |
| _mesa_ConservativeRasterParameterfNV(GLenum pname, GLfloat param) |
| { |
| conservative_raster_parameter(pname, param, false, |
| "glConservativeRasterParameterfNV"); |
| } |
| |
| void |
| _mesa_init_conservative_raster(struct gl_context *ctx) |
| { |
| ctx->ConservativeRasterDilate = 0.0; |
| ctx->ConservativeRasterMode = GL_CONSERVATIVE_RASTER_MODE_POST_SNAP_NV; |
| } |