From 03849286f030f20483af954230102e31317f18e2 Mon Sep 17 00:00:00 2001 From: Inho Lee Date: Thu, 30 Jun 2022 22:41:51 +0200 Subject: QRhi: support uniforms of int and ivec arrays in GLES2 backend Uniforms of int and ivec arrays are supported from GLES v2.0. Change-Id: I9a08db18f584e39b4f71b7348a2a1fe4089bfce4 Reviewed-by: Laszlo Agocs --- src/gui/rhi/qrhigles2.cpp | 79 ++++++++++++++++++++++++++++++++++------------- 1 file changed, 58 insertions(+), 21 deletions(-) (limited to 'src/gui/rhi/qrhigles2.cpp') diff --git a/src/gui/rhi/qrhigles2.cpp b/src/gui/rhi/qrhigles2.cpp index 6b033f1ed2..a2f909fbbe 100644 --- a/src/gui/rhi/qrhigles2.cpp +++ b/src/gui/rhi/qrhigles2.cpp @@ -3489,9 +3489,10 @@ void QRhiGles2::executeBindGraphicsPipeline(QGles2CommandBuffer *cbD, QGles2Grap f->glUseProgram(psD->program); } -static inline void qrhi_std140_to_packed(float *dst, int vecSize, int elemCount, const void *src) +template +static inline void qrhi_std140_to_packed(T *dst, int vecSize, int elemCount, const void *src) { - const float *p = reinterpret_cast(src); + const T *p = reinterpret_cast(src); for (int i = 0; i < elemCount; ++i) { for (int j = 0; j < vecSize; ++j) dst[vecSize * i + j] = *p++; @@ -3560,7 +3561,11 @@ void QRhiGles2::bindShaderResources(QGles2CommandBuffer *cbD, QGles2ShaderResourceBindings *srbD = QRHI_RES(QGles2ShaderResourceBindings, srb); int texUnit = 1; // start from unit 1, keep 0 for resource mgmt stuff to avoid clashes bool activeTexUnitAltered = false; - QVarLengthArray packedFloatArray; + union data32_t { + float f; + qint32 i; + }; + QVarLengthArray packedArray; QGles2UniformDescriptionVector &uniforms(maybeGraphicsPs ? QRHI_RES(QGles2GraphicsPipeline, maybeGraphicsPs)->uniforms : QRHI_RES(QGles2ComputePipeline, maybeComputePs)->uniforms); QGles2UniformState *uniformState = maybeGraphicsPs ? QRHI_RES(QGles2GraphicsPipeline, maybeGraphicsPs)->uniformState @@ -3604,11 +3609,16 @@ void QRhiGles2::bindShaderResources(QGles2CommandBuffer *cbD, && uniform.type != QShaderDescription::Vec2 && uniform.type != QShaderDescription::Vec3 && uniform.type != QShaderDescription::Vec4 + && uniform.type != QShaderDescription::Int + && uniform.type != QShaderDescription::Int2 + && uniform.type != QShaderDescription::Int3 + && uniform.type != QShaderDescription::Int4 && uniform.type != QShaderDescription::Mat3 && uniform.type != QShaderDescription::Mat4) { qWarning("Uniform with buffer binding %d, buffer offset %d, type %d is an array, " - "but arrays are only supported for float, vec2, vec3, vec4, mat3 and mat4. " + "but arrays are only supported for float, vec2, vec3, vec4, int, " + "ivec2, ivec3, ivec4, mat3 and mat4. " "Only the first element will be set.", uniform.binding, uniform.offset, uniform.type); } @@ -3638,9 +3648,9 @@ void QRhiGles2::bindShaderResources(QGles2CommandBuffer *cbD, } } else { // input is 16 bytes per element as per std140, have to convert to packed - packedFloatArray.resize(elemCount); - qrhi_std140_to_packed(packedFloatArray.data(), 1, elemCount, src); - f->glUniform1fv(uniform.glslLocation, elemCount, packedFloatArray.constData()); + packedArray.resize(elemCount); + qrhi_std140_to_packed(&packedArray.data()->f, 1, elemCount, src); + f->glUniform1fv(uniform.glslLocation, elemCount, &packedArray.constData()->f); } } break; @@ -3664,9 +3674,9 @@ void QRhiGles2::bindShaderResources(QGles2CommandBuffer *cbD, f->glUniform2fv(uniform.glslLocation, 1, v); } } else { - packedFloatArray.resize(elemCount * 2); - qrhi_std140_to_packed(packedFloatArray.data(), 2, elemCount, src); - f->glUniform2fv(uniform.glslLocation, elemCount, packedFloatArray.constData()); + packedArray.resize(elemCount * 2); + qrhi_std140_to_packed(&packedArray.data()->f, 2, elemCount, src); + f->glUniform2fv(uniform.glslLocation, elemCount, &packedArray.constData()->f); } } break; @@ -3692,9 +3702,9 @@ void QRhiGles2::bindShaderResources(QGles2CommandBuffer *cbD, f->glUniform3fv(uniform.glslLocation, 1, v); } } else { - packedFloatArray.resize(elemCount * 3); - qrhi_std140_to_packed(packedFloatArray.data(), 3, elemCount, src); - f->glUniform3fv(uniform.glslLocation, elemCount, packedFloatArray.constData()); + packedArray.resize(elemCount * 3); + qrhi_std140_to_packed(&packedArray.data()->f, 3, elemCount, src); + f->glUniform3fv(uniform.glslLocation, elemCount, &packedArray.constData()->f); } } break; @@ -3722,7 +3732,7 @@ void QRhiGles2::bindShaderResources(QGles2CommandBuffer *cbD, f->glUniform4fv(uniform.glslLocation, 1, v); } } else { - f->glUniform4fv(uniform.glslLocation, qMax(1, uniform.arrayDim), reinterpret_cast(src)); + f->glUniform4fv(uniform.glslLocation, elemCount, reinterpret_cast(src)); } } break; @@ -3741,9 +3751,9 @@ void QRhiGles2::bindShaderResources(QGles2CommandBuffer *cbD, memcpy(mat + 6, srcMat + 8, 3 * sizeof(float)); f->glUniformMatrix3fv(uniform.glslLocation, 1, GL_FALSE, mat); } else { - packedFloatArray.resize(elemCount * 9); - qrhi_std140_to_packed(packedFloatArray.data(), 3, elemCount * 3, src); - f->glUniformMatrix3fv(uniform.glslLocation, elemCount, GL_FALSE, packedFloatArray.constData()); + packedArray.resize(elemCount * 9); + qrhi_std140_to_packed(&packedArray.data()->f, 3, elemCount * 3, src); + f->glUniformMatrix3fv(uniform.glslLocation, elemCount, GL_FALSE, &packedArray.constData()->f); } } break; @@ -3751,16 +3761,43 @@ void QRhiGles2::bindShaderResources(QGles2CommandBuffer *cbD, f->glUniformMatrix4fv(uniform.glslLocation, qMax(1, uniform.arrayDim), GL_FALSE, reinterpret_cast(src)); break; case QShaderDescription::Int: - f->glUniform1i(uniform.glslLocation, *reinterpret_cast(src)); + { + const int elemCount = uniform.arrayDim; + if (elemCount < 1) { + f->glUniform1i(uniform.glslLocation, *reinterpret_cast(src)); + } else { + packedArray.resize(elemCount); + qrhi_std140_to_packed(&packedArray.data()->i, 1, elemCount, src); + f->glUniform1iv(uniform.glslLocation, elemCount, &packedArray.constData()->i); + } + } break; case QShaderDescription::Int2: - f->glUniform2iv(uniform.glslLocation, 1, reinterpret_cast(src)); + { + const int elemCount = uniform.arrayDim; + if (elemCount < 1) { + f->glUniform2iv(uniform.glslLocation, 1, reinterpret_cast(src)); + } else { + packedArray.resize(elemCount * 2); + qrhi_std140_to_packed(&packedArray.data()->i, 2, elemCount, src); + f->glUniform2iv(uniform.glslLocation, elemCount, &packedArray.constData()->i); + } + } break; case QShaderDescription::Int3: - f->glUniform3iv(uniform.glslLocation, 1, reinterpret_cast(src)); + { + const int elemCount = uniform.arrayDim; + if (elemCount < 1) { + f->glUniform3iv(uniform.glslLocation, 1, reinterpret_cast(src)); + } else { + packedArray.resize(elemCount * 3); + qrhi_std140_to_packed(&packedArray.data()->i, 3, elemCount, src); + f->glUniform3iv(uniform.glslLocation, elemCount, &packedArray.constData()->i); + } + } break; case QShaderDescription::Int4: - f->glUniform4iv(uniform.glslLocation, 1, reinterpret_cast(src)); + f->glUniform4iv(uniform.glslLocation, qMax(1, uniform.arrayDim), reinterpret_cast(src)); break; case QShaderDescription::Uint: f->glUniform1ui(uniform.glslLocation, *reinterpret_cast(src)); -- cgit v1.2.3